github-forks
/
FreeRTOS
mirror of https://github.com/FreeRTOS/FreeRTOS.git
1
0
Fork 0
Code Issues Projects Releases Wiki Activity

Fix Posix demo build and remove src directory (#213)

Browse Source 
* Fix: build errors, remove src directory and bring all files up
* Fix: Remove not needed header
* Doc: fix main comments
* Doc: fix comment

Co-authored-by: Alfred Gedeon <gedeonag@amazon.com>
pull/105/head^2
alfred gedeon 5 years ago committed by GitHub
parent a9680a54cf
commit 638262fab1
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
20 changed files with 1035 additions and 1030 deletions
Show Stats Download Patch File Download Diff File

1
FreeRTOS-Plus/Source/FreeRTOS-Plus-TCP/portable/NetworkInterface/linux/NetworkInterface.c
Unescape Escape View File

@ -44,7 +44,6 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
#include <pthread.h>
#include <stdlib.h>
#include <ctype.h>
#include <sys/sysinfo.h>
#include <signal.h>
#include <pcap.h>

0
FreeRTOS/Demo/Posix_GCC/src/FreeRTOSConfig.h → FreeRTOS/Demo/Posix_GCC/FreeRTOSConfig.h
Unescape Escape View File

614
FreeRTOS/Demo/Posix_GCC/src/FreeRTOSIPConfig.h → FreeRTOS/Demo/Posix_GCC/FreeRTOSIPConfig.h
Unescape Escape View File

@ -1,307 +1,307 @@
/*
* FreeRTOS Kernel V10.3.0
* Copyright (C) 2017 Amazon.com, Inc. or its affiliates. All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy of
* this software and associated documentation files (the "Software"), to deal in
* the Software without restriction, including without limitation the rights to
* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
* the Software, and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
* http://www.FreeRTOS.org
* http://aws.amazon.com/freertos
*
* 1 tab == 4 spaces!
*/
/*****************************************************************************
*
* See the following URL for configuration information.
* http://www.freertos.org/FreeRTOS-Plus/FreeRTOS_Plus_TCP/TCP_IP_Configuration.html
*
*****************************************************************************/
#ifndef FREERTOS_IP_CONFIG_H
#define FREERTOS_IP_CONFIG_H
/* Prototype for the function used to print out. In this case it prints to the
console before the network is connected then a UDP port after the network has
connected. */
extern void vLoggingPrintf( const char *pcFormatString, ... );
/* Set to 1 to print out debug messages. If ipconfigHAS_DEBUG_PRINTF is set to
1 then FreeRTOS_debug_printf should be defined to the function used to print
out the debugging messages. */
#define ipconfigHAS_DEBUG_PRINTF 1
#if( ipconfigHAS_DEBUG_PRINTF == 1 )
#define FreeRTOS_debug_printf(X) vLoggingPrintf X
#endif
/* Set to 1 to print out non debugging messages, for example the output of the
FreeRTOS_netstat() command, and ping replies. If ipconfigHAS_PRINTF is set to 1
then FreeRTOS_printf should be set to the function used to print out the
messages. */
#define ipconfigHAS_PRINTF 1
#if( ipconfigHAS_PRINTF == 1 )
#define FreeRTOS_printf(X) vLoggingPrintf X
#endif
/* Define the byte order of the target MCU (the MCU FreeRTOS+TCP is executing
on). Valid options are pdFREERTOS_BIG_ENDIAN and pdFREERTOS_LITTLE_ENDIAN. */
#define ipconfigBYTE_ORDER pdFREERTOS_LITTLE_ENDIAN
/* If the network card/driver includes checksum offloading (IP/TCP/UDP checksums)
then set ipconfigDRIVER_INCLUDED_RX_IP_CHECKSUM to 1 to prevent the software
stack repeating the checksum calculations. */
#define ipconfigDRIVER_INCLUDED_RX_IP_CHECKSUM 1
/* Several API's will block until the result is known, or the action has been
performed, for example FreeRTOS_send() and FreeRTOS_recv(). The timeouts can be
set per socket, using setsockopt(). If not set, the times below will be
used as defaults. */
#define ipconfigSOCK_DEFAULT_RECEIVE_BLOCK_TIME ( 5000 )
#define ipconfigSOCK_DEFAULT_SEND_BLOCK_TIME ( 5000 )
/* Include support for LLMNR: Link-local Multicast Name Resolution
(non-Microsoft) */
#define ipconfigUSE_LLMNR ( 1 )
/* Include support for NBNS: NetBIOS Name Service (Microsoft) */
#define ipconfigUSE_NBNS ( 1 )
/* Include support for DNS caching. For TCP, having a small DNS cache is very
useful. When a cache is present, ipconfigDNS_REQUEST_ATTEMPTS can be kept low
and also DNS may use small timeouts. If a DNS reply comes in after the DNS
socket has been destroyed, the result will be stored into the cache. The next
call to FreeRTOS_gethostbyname() will return immediately, without even creating
a socket. */
#define ipconfigUSE_DNS_CACHE ( 1 )
#define ipconfigDNS_CACHE_NAME_LENGTH ( 16 )
#define ipconfigDNS_CACHE_ENTRIES ( 4 )
#define ipconfigDNS_REQUEST_ATTEMPTS ( 2 )
/* The IP stack executes it its own task (although any application task can make
use of its services through the published sockets API). ipconfigUDP_TASK_PRIORITY
sets the priority of the task that executes the IP stack. The priority is a
standard FreeRTOS task priority so can take any value from 0 (the lowest
priority) to (configMAX_PRIORITIES - 1) (the highest priority).
configMAX_PRIORITIES is a standard FreeRTOS configuration parameter defined in
FreeRTOSConfig.h, not FreeRTOSIPConfig.h. Consideration needs to be given as to
the priority assigned to the task executing the IP stack relative to the
priority assigned to tasks that use the IP stack. */
#define ipconfigIP_TASK_PRIORITY ( configMAX_PRIORITIES - 2 )
/* The size, in words (not bytes), of the stack allocated to the FreeRTOS+TCP
task. This setting is less important when the FreeRTOS Win32 simulator is used
as the Win32 simulator only stores a fixed amount of information on the task
stack. FreeRTOS includes optional stack overflow detection, see:
http://www.freertos.org/Stacks-and-stack-overflow-checking.html */
#define ipconfigIP_TASK_STACK_SIZE_WORDS ( configMINIMAL_STACK_SIZE * 5 )
/* ipconfigRAND32() is called by the IP stack to generate random numbers for
things such as a DHCP transaction number or initial sequence number. Random
number generation is performed via this macro to allow applications to use their
own random number generation method. For example, it might be possible to
generate a random number by sampling noise on an analogue input. */
extern UBaseType_t uxRand();
#define ipconfigRAND32() uxRand()
/* If ipconfigUSE_NETWORK_EVENT_HOOK is set to 1 then FreeRTOS+TCP will call the
network event hook at the appropriate times. If ipconfigUSE_NETWORK_EVENT_HOOK
is not set to 1 then the network event hook will never be called. See
http://www.FreeRTOS.org/FreeRTOS-Plus/FreeRTOS_Plus_UDP/API/vApplicationIPNetworkEventHook.shtml
*/
#define ipconfigUSE_NETWORK_EVENT_HOOK 1
/* Sockets have a send block time attribute. If FreeRTOS_sendto() is called but
a network buffer cannot be obtained then the calling task is held in the Blocked
state (so other tasks can continue to executed) until either a network buffer
becomes available or the send block time expires. If the send block time expires
then the send operation is aborted. The maximum allowable send block time is
capped to the value set by ipconfigMAX_SEND_BLOCK_TIME_TICKS. Capping the
maximum allowable send block time prevents prevents a deadlock occurring when
all the network buffers are in use and the tasks that process (and subsequently
free) the network buffers are themselves blocked waiting for a network buffer.
ipconfigMAX_SEND_BLOCK_TIME_TICKS is specified in RTOS ticks. A time in
milliseconds can be converted to a time in ticks by dividing the time in
milliseconds by portTICK_PERIOD_MS. */
#define ipconfigUDP_MAX_SEND_BLOCK_TIME_TICKS ( 5000U / portTICK_PERIOD_MS )
/* If ipconfigUSE_DHCP is 1 then FreeRTOS+TCP will attempt to retrieve an IP
address, netmask, DNS server address and gateway address from a DHCP server. If
ipconfigUSE_DHCP is 0 then FreeRTOS+TCP will use a static IP address. The
stack will revert to using the static IP address even when ipconfigUSE_DHCP is
set to 1 if a valid configuration cannot be obtained from a DHCP server for any
reason. The static configuration used is that passed into the stack by the
FreeRTOS_IPInit() function call. */
#define ipconfigUSE_DHCP 0
/* When ipconfigUSE_DHCP is set to 1, DHCP requests will be sent out at
increasing time intervals until either a reply is received from a DHCP server
and accepted, or the interval between transmissions reaches
ipconfigMAXIMUM_DISCOVER_TX_PERIOD. The IP stack will revert to using the
static IP address passed as a parameter to FreeRTOS_IPInit() if the
re-transmission time interval reaches ipconfigMAXIMUM_DISCOVER_TX_PERIOD without
a DHCP reply being received. */
#define ipconfigMAXIMUM_DISCOVER_TX_PERIOD ( 120000U / portTICK_PERIOD_MS )
/* The ARP cache is a table that maps IP addresses to MAC addresses. The IP
stack can only send a UDP message to a remove IP address if it knowns the MAC
address associated with the IP address, or the MAC address of the router used to
contact the remote IP address. When a UDP message is received from a remote IP
address the MAC address and IP address are added to the ARP cache. When a UDP
message is sent to a remote IP address that does not already appear in the ARP
cache then the UDP message is replaced by a ARP message that solicits the
required MAC address information. ipconfigARP_CACHE_ENTRIES defines the maximum
number of entries that can exist in the ARP table at any one time. */
#define ipconfigARP_CACHE_ENTRIES 6
/* ARP requests that do not result in an ARP response will be re-transmitted a
maximum of ipconfigMAX_ARP_RETRANSMISSIONS times before the ARP request is
aborted. */
#define ipconfigMAX_ARP_RETRANSMISSIONS ( 5 )
/* ipconfigMAX_ARP_AGE defines the maximum time between an entry in the ARP
table being created or refreshed and the entry being removed because it is stale.
New ARP requests are sent for ARP cache entries that are nearing their maximum
age. ipconfigMAX_ARP_AGE is specified in tens of seconds, so a value of 150 is
equal to 1500 seconds (or 25 minutes). */
#define ipconfigMAX_ARP_AGE 150
/* Implementing FreeRTOS_inet_addr() necessitates the use of string handling
routines, which are relatively large. To save code space the full
FreeRTOS_inet_addr() implementation is made optional, and a smaller and faster
alternative called FreeRTOS_inet_addr_quick() is provided. FreeRTOS_inet_addr()
takes an IP in decimal dot format (for example, "192.168.0.1") as its parameter.
FreeRTOS_inet_addr_quick() takes an IP address as four separate numerical octets
(for example, 192, 168, 0, 1) as its parameters. If
ipconfigINCLUDE_FULL_INET_ADDR is set to 1 then both FreeRTOS_inet_addr() and
FreeRTOS_indet_addr_quick() are available. If ipconfigINCLUDE_FULL_INET_ADDR is
not set to 1 then only FreeRTOS_indet_addr_quick() is available. */
#define ipconfigINCLUDE_FULL_INET_ADDR 1
/* ipconfigNUM_NETWORK_BUFFER_DESCRIPTORS defines the total number of network buffer that
are available to the IP stack. The total number of network buffers is limited
to ensure the total amount of RAM that can be consumed by the IP stack is capped
to a pre-determinable value. */
#define ipconfigNUM_NETWORK_BUFFER_DESCRIPTORS 60
/* A FreeRTOS queue is used to send events from application tasks to the IP
stack. ipconfigEVENT_QUEUE_LENGTH sets the maximum number of events that can
be queued for processing at any one time. The event queue must be a minimum of
5 greater than the total number of network buffers. */
#define ipconfigEVENT_QUEUE_LENGTH ( ipconfigNUM_NETWORK_BUFFER_DESCRIPTORS + 5 )
/* The address of a socket is the combination of its IP address and its port
number. FreeRTOS_bind() is used to manually allocate a port number to a socket
(to 'bind' the socket to a port), but manual binding is not normally necessary
for client sockets (those sockets that initiate outgoing connections rather than
wait for incoming connections on a known port number). If
ipconfigALLOW_SOCKET_SEND_WITHOUT_BIND is set to 1 then calling
FreeRTOS_sendto() on a socket that has not yet been bound will result in the IP
stack automatically binding the socket to a port number from the range
socketAUTO_PORT_ALLOCATION_START_NUMBER to 0xffff. If
ipconfigALLOW_SOCKET_SEND_WITHOUT_BIND is set to 0 then calling FreeRTOS_sendto()
on a socket that has not yet been bound will result in the send operation being
aborted. */
#define ipconfigALLOW_SOCKET_SEND_WITHOUT_BIND 1
/* Defines the Time To Live (TTL) values used in outgoing UDP packets. */
#define ipconfigUDP_TIME_TO_LIVE 128
#define ipconfigTCP_TIME_TO_LIVE 128 /* also defined in FreeRTOSIPConfigDefaults.h */
/* USE_TCP: Use TCP and all its features */
#define ipconfigUSE_TCP ( 1 )
/* USE_WIN: Let TCP use windowing mechanism. */
#define ipconfigUSE_TCP_WIN ( 1 )
/* The MTU is the maximum number of bytes the payload of a network frame can
contain. For normal Ethernet V2 frames the maximum MTU is 1500. Setting a
lower value can save RAM, depending on the buffer management scheme used. If
ipconfigCAN_FRAGMENT_OUTGOING_PACKETS is 1 then (ipconfigNETWORK_MTU - 28) must
be divisible by 8. */
#define ipconfigNETWORK_MTU 1200U
/* Set ipconfigUSE_DNS to 1 to include a basic DNS client/resolver. DNS is used
through the FreeRTOS_gethostbyname() API function. */
#define ipconfigUSE_DNS 1
/* If ipconfigREPLY_TO_INCOMING_PINGS is set to 1 then the IP stack will
generate replies to incoming ICMP echo (ping) requests. */
#define ipconfigREPLY_TO_INCOMING_PINGS 1
/* If ipconfigSUPPORT_OUTGOING_PINGS is set to 1 then the
FreeRTOS_SendPingRequest() API function is available. */
#define ipconfigSUPPORT_OUTGOING_PINGS 0
/* If ipconfigSUPPORT_SELECT_FUNCTION is set to 1 then the FreeRTOS_select()
(and associated) API function is available. */
#define ipconfigSUPPORT_SELECT_FUNCTION 1
/* If ipconfigFILTER_OUT_NON_ETHERNET_II_FRAMES is set to 1 then Ethernet frames
that are not in Ethernet II format will be dropped. This option is included for
potential future IP stack developments. */
#define ipconfigFILTER_OUT_NON_ETHERNET_II_FRAMES 1
/* If ipconfigETHERNET_DRIVER_FILTERS_FRAME_TYPES is set to 1 then it is the
responsibility of the Ethernet interface to filter out packets that are of no
interest. If the Ethernet interface does not implement this functionality, then
set ipconfigETHERNET_DRIVER_FILTERS_FRAME_TYPES to 0 to have the IP stack
perform the filtering instead (it is much less efficient for the stack to do it
because the packet will already have been passed into the stack). If the
Ethernet driver does all the necessary filtering in hardware then software
filtering can be removed by using a value other than 1 or 0. */
#define ipconfigETHERNET_DRIVER_FILTERS_FRAME_TYPES 1
/* The windows simulator cannot really simulate MAC interrupts, and needs to
block occasionally to allow other tasks to run. */
#define configWINDOWS_MAC_INTERRUPT_SIMULATOR_DELAY ( 20 / portTICK_PERIOD_MS )
/* Advanced only: in order to access 32-bit fields in the IP packets with
32-bit memory instructions, all packets will be stored 32-bit-aligned, plus 16-bits.
This has to do with the contents of the IP-packets: all 32-bit fields are
32-bit-aligned, plus 16-bit(!) */
#define ipconfigPACKET_FILLER_SIZE 2U
/* Define the size of the pool of TCP window descriptors. On the average, each
TCP socket will use up to 2 x 6 descriptors, meaning that it can have 2 x 6
outstanding packets (for Rx and Tx). When using up to 10 TP sockets
simultaneously, one could define TCP_WIN_SEG_COUNT as 120. */
#define ipconfigTCP_WIN_SEG_COUNT 240
/* Each TCP socket has a circular buffers for Rx and Tx, which have a fixed
maximum size. Define the size of Rx buffer for TCP sockets. */
#define ipconfigTCP_RX_BUFFER_LENGTH ( 1000 )
/* Define the size of Tx buffer for TCP sockets. */
#define ipconfigTCP_TX_BUFFER_LENGTH ( 1000 )
/* When using call-back handlers, the driver may check if the handler points to
real program memory (RAM or flash) or just has a random non-zero value. */
#define ipconfigIS_VALID_PROG_ADDRESS(x) ( (x) != NULL )
/* Include support for TCP hang protection. All sockets in a connecting or
disconnecting stage will timeout after a period of non-activity. */
#define ipconfigTCP_HANG_PROTECTION ( 1 )
#define ipconfigTCP_HANG_PROTECTION_TIME ( 30 )
/* Include support for TCP keep-alive messages. */
#define ipconfigTCP_KEEP_ALIVE ( 1 )
#define ipconfigTCP_KEEP_ALIVE_INTERVAL ( 20 ) /* in seconds */
#define portINLINE __inline
#endif /* FREERTOS_IP_CONFIG_H */
/*
* FreeRTOS Kernel V10.3.0
* Copyright (C) 2017 Amazon.com, Inc. or its affiliates. All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy of
* this software and associated documentation files (the "Software"), to deal in
* the Software without restriction, including without limitation the rights to
* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
* the Software, and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
* http://www.FreeRTOS.org
* http://aws.amazon.com/freertos
*
* 1 tab == 4 spaces!
*/
/*****************************************************************************
*
* See the following URL for configuration information.
* http://www.freertos.org/FreeRTOS-Plus/FreeRTOS_Plus_TCP/TCP_IP_Configuration.html
*
*****************************************************************************/
#ifndef FREERTOS_IP_CONFIG_H
#define FREERTOS_IP_CONFIG_H
/* Prototype for the function used to print out. In this case it prints to the
console before the network is connected then a UDP port after the network has
connected. */
extern void vLoggingPrintf( const char *pcFormatString, ... );
/* Set to 1 to print out debug messages. If ipconfigHAS_DEBUG_PRINTF is set to
1 then FreeRTOS_debug_printf should be defined to the function used to print
out the debugging messages. */
#define ipconfigHAS_DEBUG_PRINTF 1
#if( ipconfigHAS_DEBUG_PRINTF == 1 )
#define FreeRTOS_debug_printf(X) vLoggingPrintf X
#endif
/* Set to 1 to print out non debugging messages, for example the output of the
FreeRTOS_netstat() command, and ping replies. If ipconfigHAS_PRINTF is set to 1
then FreeRTOS_printf should be set to the function used to print out the
messages. */
#define ipconfigHAS_PRINTF 0
#if( ipconfigHAS_PRINTF == 1 )
#define FreeRTOS_printf(X) vLoggingPrintf X
#endif
/* Define the byte order of the target MCU (the MCU FreeRTOS+TCP is executing
on). Valid options are pdFREERTOS_BIG_ENDIAN and pdFREERTOS_LITTLE_ENDIAN. */
#define ipconfigBYTE_ORDER pdFREERTOS_LITTLE_ENDIAN
/* If the network card/driver includes checksum offloading (IP/TCP/UDP checksums)
then set ipconfigDRIVER_INCLUDED_RX_IP_CHECKSUM to 1 to prevent the software
stack repeating the checksum calculations. */
#define ipconfigDRIVER_INCLUDED_RX_IP_CHECKSUM 1
/* Several API's will block until the result is known, or the action has been
performed, for example FreeRTOS_send() and FreeRTOS_recv(). The timeouts can be
set per socket, using setsockopt(). If not set, the times below will be
used as defaults. */
#define ipconfigSOCK_DEFAULT_RECEIVE_BLOCK_TIME ( 5000 )
#define ipconfigSOCK_DEFAULT_SEND_BLOCK_TIME ( 5000 )
/* Include support for LLMNR: Link-local Multicast Name Resolution
(non-Microsoft) */
#define ipconfigUSE_LLMNR ( 1 )
/* Include support for NBNS: NetBIOS Name Service (Microsoft) */
#define ipconfigUSE_NBNS ( 1 )
/* Include support for DNS caching. For TCP, having a small DNS cache is very
useful. When a cache is present, ipconfigDNS_REQUEST_ATTEMPTS can be kept low
and also DNS may use small timeouts. If a DNS reply comes in after the DNS
socket has been destroyed, the result will be stored into the cache. The next
call to FreeRTOS_gethostbyname() will return immediately, without even creating
a socket. */
#define ipconfigUSE_DNS_CACHE ( 1 )
#define ipconfigDNS_CACHE_NAME_LENGTH ( 16 )
#define ipconfigDNS_CACHE_ENTRIES ( 4 )
#define ipconfigDNS_REQUEST_ATTEMPTS ( 2 )
/* The IP stack executes it its own task (although any application task can make
use of its services through the published sockets API). ipconfigUDP_TASK_PRIORITY
sets the priority of the task that executes the IP stack. The priority is a
standard FreeRTOS task priority so can take any value from 0 (the lowest
priority) to (configMAX_PRIORITIES - 1) (the highest priority).
configMAX_PRIORITIES is a standard FreeRTOS configuration parameter defined in
FreeRTOSConfig.h, not FreeRTOSIPConfig.h. Consideration needs to be given as to
the priority assigned to the task executing the IP stack relative to the
priority assigned to tasks that use the IP stack. */
#define ipconfigIP_TASK_PRIORITY ( configMAX_PRIORITIES - 2 )
/* The size, in words (not bytes), of the stack allocated to the FreeRTOS+TCP
task. This setting is less important when the FreeRTOS Win32 simulator is used
as the Win32 simulator only stores a fixed amount of information on the task
stack. FreeRTOS includes optional stack overflow detection, see:
http://www.freertos.org/Stacks-and-stack-overflow-checking.html */
#define ipconfigIP_TASK_STACK_SIZE_WORDS ( configMINIMAL_STACK_SIZE * 5 )
/* ipconfigRAND32() is called by the IP stack to generate random numbers for
things such as a DHCP transaction number or initial sequence number. Random
number generation is performed via this macro to allow applications to use their
own random number generation method. For example, it might be possible to
generate a random number by sampling noise on an analogue input. */
extern UBaseType_t uxRand();
#define ipconfigRAND32() uxRand()
/* If ipconfigUSE_NETWORK_EVENT_HOOK is set to 1 then FreeRTOS+TCP will call the
network event hook at the appropriate times. If ipconfigUSE_NETWORK_EVENT_HOOK
is not set to 1 then the network event hook will never be called. See
http://www.FreeRTOS.org/FreeRTOS-Plus/FreeRTOS_Plus_UDP/API/vApplicationIPNetworkEventHook.shtml
*/
#define ipconfigUSE_NETWORK_EVENT_HOOK 1
/* Sockets have a send block time attribute. If FreeRTOS_sendto() is called but
a network buffer cannot be obtained then the calling task is held in the Blocked
state (so other tasks can continue to executed) until either a network buffer
becomes available or the send block time expires. If the send block time expires
then the send operation is aborted. The maximum allowable send block time is
capped to the value set by ipconfigMAX_SEND_BLOCK_TIME_TICKS. Capping the
maximum allowable send block time prevents prevents a deadlock occurring when
all the network buffers are in use and the tasks that process (and subsequently
free) the network buffers are themselves blocked waiting for a network buffer.
ipconfigMAX_SEND_BLOCK_TIME_TICKS is specified in RTOS ticks. A time in
milliseconds can be converted to a time in ticks by dividing the time in
milliseconds by portTICK_PERIOD_MS. */
#define ipconfigUDP_MAX_SEND_BLOCK_TIME_TICKS ( 5000U / portTICK_PERIOD_MS )
/* If ipconfigUSE_DHCP is 1 then FreeRTOS+TCP will attempt to retrieve an IP
address, netmask, DNS server address and gateway address from a DHCP server. If
ipconfigUSE_DHCP is 0 then FreeRTOS+TCP will use a static IP address. The
stack will revert to using the static IP address even when ipconfigUSE_DHCP is
set to 1 if a valid configuration cannot be obtained from a DHCP server for any
reason. The static configuration used is that passed into the stack by the
FreeRTOS_IPInit() function call. */
#define ipconfigUSE_DHCP 0
/* When ipconfigUSE_DHCP is set to 1, DHCP requests will be sent out at
increasing time intervals until either a reply is received from a DHCP server
and accepted, or the interval between transmissions reaches
ipconfigMAXIMUM_DISCOVER_TX_PERIOD. The IP stack will revert to using the
static IP address passed as a parameter to FreeRTOS_IPInit() if the
re-transmission time interval reaches ipconfigMAXIMUM_DISCOVER_TX_PERIOD without
a DHCP reply being received. */
#define ipconfigMAXIMUM_DISCOVER_TX_PERIOD ( 120000U / portTICK_PERIOD_MS )
/* The ARP cache is a table that maps IP addresses to MAC addresses. The IP
stack can only send a UDP message to a remove IP address if it knowns the MAC
address associated with the IP address, or the MAC address of the router used to
contact the remote IP address. When a UDP message is received from a remote IP
address the MAC address and IP address are added to the ARP cache. When a UDP
message is sent to a remote IP address that does not already appear in the ARP
cache then the UDP message is replaced by a ARP message that solicits the
required MAC address information. ipconfigARP_CACHE_ENTRIES defines the maximum
number of entries that can exist in the ARP table at any one time. */
#define ipconfigARP_CACHE_ENTRIES 6
/* ARP requests that do not result in an ARP response will be re-transmitted a
maximum of ipconfigMAX_ARP_RETRANSMISSIONS times before the ARP request is
aborted. */
#define ipconfigMAX_ARP_RETRANSMISSIONS ( 5 )
/* ipconfigMAX_ARP_AGE defines the maximum time between an entry in the ARP
table being created or refreshed and the entry being removed because it is stale.
New ARP requests are sent for ARP cache entries that are nearing their maximum
age. ipconfigMAX_ARP_AGE is specified in tens of seconds, so a value of 150 is
equal to 1500 seconds (or 25 minutes). */
#define ipconfigMAX_ARP_AGE 150
/* Implementing FreeRTOS_inet_addr() necessitates the use of string handling
routines, which are relatively large. To save code space the full
FreeRTOS_inet_addr() implementation is made optional, and a smaller and faster
alternative called FreeRTOS_inet_addr_quick() is provided. FreeRTOS_inet_addr()
takes an IP in decimal dot format (for example, "192.168.0.1") as its parameter.
FreeRTOS_inet_addr_quick() takes an IP address as four separate numerical octets
(for example, 192, 168, 0, 1) as its parameters. If
ipconfigINCLUDE_FULL_INET_ADDR is set to 1 then both FreeRTOS_inet_addr() and
FreeRTOS_indet_addr_quick() are available. If ipconfigINCLUDE_FULL_INET_ADDR is
not set to 1 then only FreeRTOS_indet_addr_quick() is available. */
#define ipconfigINCLUDE_FULL_INET_ADDR 1
/* ipconfigNUM_NETWORK_BUFFER_DESCRIPTORS defines the total number of network buffer that
are available to the IP stack. The total number of network buffers is limited
to ensure the total amount of RAM that can be consumed by the IP stack is capped
to a pre-determinable value. */
#define ipconfigNUM_NETWORK_BUFFER_DESCRIPTORS 60
/* A FreeRTOS queue is used to send events from application tasks to the IP
stack. ipconfigEVENT_QUEUE_LENGTH sets the maximum number of events that can
be queued for processing at any one time. The event queue must be a minimum of
5 greater than the total number of network buffers. */
#define ipconfigEVENT_QUEUE_LENGTH ( ipconfigNUM_NETWORK_BUFFER_DESCRIPTORS + 5 )
/* The address of a socket is the combination of its IP address and its port
number. FreeRTOS_bind() is used to manually allocate a port number to a socket
(to 'bind' the socket to a port), but manual binding is not normally necessary
for client sockets (those sockets that initiate outgoing connections rather than
wait for incoming connections on a known port number). If
ipconfigALLOW_SOCKET_SEND_WITHOUT_BIND is set to 1 then calling
FreeRTOS_sendto() on a socket that has not yet been bound will result in the IP
stack automatically binding the socket to a port number from the range
socketAUTO_PORT_ALLOCATION_START_NUMBER to 0xffff. If
ipconfigALLOW_SOCKET_SEND_WITHOUT_BIND is set to 0 then calling FreeRTOS_sendto()
on a socket that has not yet been bound will result in the send operation being
aborted. */
#define ipconfigALLOW_SOCKET_SEND_WITHOUT_BIND 1
/* Defines the Time To Live (TTL) values used in outgoing UDP packets. */
#define ipconfigUDP_TIME_TO_LIVE 128
#define ipconfigTCP_TIME_TO_LIVE 128 /* also defined in FreeRTOSIPConfigDefaults.h */
/* USE_TCP: Use TCP and all its features */
#define ipconfigUSE_TCP ( 1 )
/* USE_WIN: Let TCP use windowing mechanism. */
#define ipconfigUSE_TCP_WIN ( 1 )
/* The MTU is the maximum number of bytes the payload of a network frame can
contain. For normal Ethernet V2 frames the maximum MTU is 1500. Setting a
lower value can save RAM, depending on the buffer management scheme used. If
ipconfigCAN_FRAGMENT_OUTGOING_PACKETS is 1 then (ipconfigNETWORK_MTU - 28) must
be divisible by 8. */
#define ipconfigNETWORK_MTU 1200U
/* Set ipconfigUSE_DNS to 1 to include a basic DNS client/resolver. DNS is used
through the FreeRTOS_gethostbyname() API function. */
#define ipconfigUSE_DNS 1
/* If ipconfigREPLY_TO_INCOMING_PINGS is set to 1 then the IP stack will
generate replies to incoming ICMP echo (ping) requests. */
#define ipconfigREPLY_TO_INCOMING_PINGS 1
/* If ipconfigSUPPORT_OUTGOING_PINGS is set to 1 then the
FreeRTOS_SendPingRequest() API function is available. */
#define ipconfigSUPPORT_OUTGOING_PINGS 0
/* If ipconfigSUPPORT_SELECT_FUNCTION is set to 1 then the FreeRTOS_select()
(and associated) API function is available. */
#define ipconfigSUPPORT_SELECT_FUNCTION 1
/* If ipconfigFILTER_OUT_NON_ETHERNET_II_FRAMES is set to 1 then Ethernet frames
that are not in Ethernet II format will be dropped. This option is included for
potential future IP stack developments. */
#define ipconfigFILTER_OUT_NON_ETHERNET_II_FRAMES 1
/* If ipconfigETHERNET_DRIVER_FILTERS_FRAME_TYPES is set to 1 then it is the
responsibility of the Ethernet interface to filter out packets that are of no
interest. If the Ethernet interface does not implement this functionality, then
set ipconfigETHERNET_DRIVER_FILTERS_FRAME_TYPES to 0 to have the IP stack
perform the filtering instead (it is much less efficient for the stack to do it
because the packet will already have been passed into the stack). If the
Ethernet driver does all the necessary filtering in hardware then software
filtering can be removed by using a value other than 1 or 0. */
#define ipconfigETHERNET_DRIVER_FILTERS_FRAME_TYPES 1
/* The windows simulator cannot really simulate MAC interrupts, and needs to
block occasionally to allow other tasks to run. */
#define configWINDOWS_MAC_INTERRUPT_SIMULATOR_DELAY ( 20 / portTICK_PERIOD_MS )
/* Advanced only: in order to access 32-bit fields in the IP packets with
32-bit memory instructions, all packets will be stored 32-bit-aligned, plus 16-bits.
This has to do with the contents of the IP-packets: all 32-bit fields are
32-bit-aligned, plus 16-bit(!) */
#define ipconfigPACKET_FILLER_SIZE 2U
/* Define the size of the pool of TCP window descriptors. On the average, each
TCP socket will use up to 2 x 6 descriptors, meaning that it can have 2 x 6
outstanding packets (for Rx and Tx). When using up to 10 TP sockets
simultaneously, one could define TCP_WIN_SEG_COUNT as 120. */
#define ipconfigTCP_WIN_SEG_COUNT 240
/* Each TCP socket has a circular buffers for Rx and Tx, which have a fixed
maximum size. Define the size of Rx buffer for TCP sockets. */
#define ipconfigTCP_RX_BUFFER_LENGTH ( 1000 )
/* Define the size of Tx buffer for TCP sockets. */
#define ipconfigTCP_TX_BUFFER_LENGTH ( 1000 )
/* When using call-back handlers, the driver may check if the handler points to
real program memory (RAM or flash) or just has a random non-zero value. */
#define ipconfigIS_VALID_PROG_ADDRESS(x) ( (x) != NULL )
/* Include support for TCP hang protection. All sockets in a connecting or
disconnecting stage will timeout after a period of non-activity. */
#define ipconfigTCP_HANG_PROTECTION ( 1 )
#define ipconfigTCP_HANG_PROTECTION_TIME ( 30 )
/* Include support for TCP keep-alive messages. */
#define ipconfigTCP_KEEP_ALIVE ( 1 )
#define ipconfigTCP_KEEP_ALIVE_INTERVAL ( 20 ) /* in seconds */
#define portINLINE __inline
#endif /* FREERTOS_IP_CONFIG_H */

0
FreeRTOS/Demo/Posix_GCC/src/SConscript → FreeRTOS/Demo/Posix_GCC/SConscript
Unescape Escape View File

10
FreeRTOS/Demo/Posix_GCC/SConstruct
Unescape Escape View File

@ -27,10 +27,10 @@
import os
# Create a symlink to the FreeRTOS sources.
if not os.path.exists("src/FreeRTOS"):
os.symlink("../../..", "src/FreeRTOS")
if not os.path.exists("src/FreeRTOS-Plus"):
os.symlink("../../../../FreeRTOS-Plus", "src/FreeRTOS-Plus")
if not os.path.exists("FreeRTOS"):
os.symlink("../..", "FreeRTOS")
if not os.path.exists("FreeRTOS-Plus"):
os.symlink("../../../FreeRTOS-Plus", "FreeRTOS-Plus")
AddOption("--simple",
action='store_true',
@ -49,4 +49,4 @@ env.Append(CFLAGS = [
"-O2",
])
SConscript("src/SConscript", variant_dir="build", duplicate=0)
SConscript("./SConscript", variant_dir="build", duplicate=0)

576
FreeRTOS/Demo/Posix_GCC/src/SimpleTCPEchoServer.c → FreeRTOS/Demo/Posix_GCC/SimpleTCPEchoServer.c
Unescape Escape View File

@ -1,288 +1,288 @@
/*
FreeRTOS V9.0.0 - Copyright (C) 2016 Real Time Engineers Ltd.
All rights reserved
VISIT http://www.FreeRTOS.org TO ENSURE YOU ARE USING THE LATEST VERSION.
This file is part of the FreeRTOS distribution.
FreeRTOS is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License (version 2) as published by the
Free Software Foundation >>!AND MODIFIED BY!<< the FreeRTOS exception.
***************************************************************************
>>! NOTE: The modification to the GPL is included to allow you to !<<
>>! distribute a combined work that includes FreeRTOS without being !<<
>>! obliged to provide the source code for proprietary components !<<
>>! outside of the FreeRTOS kernel. !<<
***************************************************************************
FreeRTOS is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
FOR A PARTICULAR PURPOSE. Full license text is available on the following
link: http://www.freertos.org/a00114.html
***************************************************************************
* *
* FreeRTOS provides completely free yet professionally developed, *
* robust, strictly quality controlled, supported, and cross *
* platform software that is more than just the market leader, it *
* is the industry's de facto standard. *
* *
* Help yourself get started quickly while simultaneously helping *
* to support the FreeRTOS project by purchasing a FreeRTOS *
* tutorial book, reference manual, or both: *
* http://www.FreeRTOS.org/Documentation *
* *
***************************************************************************
http://www.FreeRTOS.org/FAQHelp.html - Having a problem? Start by reading
the FAQ page "My application does not run, what could be wrong?". Have you
defined configASSERT()?
http://www.FreeRTOS.org/support - In return for receiving this top quality
embedded software for free we request you assist our global community by
participating in the support forum.
http://www.FreeRTOS.org/training - Investing in training allows your team to
be as productive as possible as early as possible. Now you can receive
FreeRTOS training directly from Richard Barry, CEO of Real Time Engineers
Ltd, and the world's leading authority on the world's leading RTOS.
http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products,
including FreeRTOS+Trace - an indispensable productivity tool, a DOS
compatible FAT file system, and our tiny thread aware UDP/IP stack.
http://www.FreeRTOS.org/labs - Where new FreeRTOS products go to incubate.
Come and try FreeRTOS+TCP, our new open source TCP/IP stack for FreeRTOS.
http://www.OpenRTOS.com - Real Time Engineers ltd. license FreeRTOS to High
Integrity Systems ltd. to sell under the OpenRTOS brand. Low cost OpenRTOS
licenses offer ticketed support, indemnification and commercial middleware.
http://www.SafeRTOS.com - High Integrity Systems also provide a safety
engineered and independently SIL3 certified version for use in safety and
mission critical applications that require provable dependability.
1 tab == 4 spaces!
*/
/*
* FreeRTOS tasks are used with FreeRTOS+TCP to create a TCP echo server on the
* standard echo port number (7).
*
* See the following web page for essential demo usage and configuration
* details:
* http://www.freertos.org/FreeRTOS-Plus/FreeRTOS_Plus_TCP/TCP_Echo_Server.html
*/
/* Standard includes. */
#include <stdint.h>
#include <stdio.h>
/* FreeRTOS includes. */
#include "FreeRTOS.h"
#include "task.h"
#include "semphr.h"
/* FreeRTOS+TCP includes. */
#include "FreeRTOS_IP.h"
#include "FreeRTOS_Sockets.h"
/* Remove the whole file if FreeRTOSIPConfig.h is set to exclude TCP. */
#if( ipconfigUSE_TCP == 1 )
/* The maximum time to wait for a closing socket to close. */
#define tcpechoSHUTDOWN_DELAY ( pdMS_TO_TICKS( 5000 ) )
/* The standard echo port number. */
#define tcpechoPORT_NUMBER 7
/* If ipconfigUSE_TCP_WIN is 1 then the Tx sockets will use a buffer size set by
ipconfigTCP_TX_BUFFER_LENGTH, and the Tx window size will be
configECHO_SERVER_TX_WINDOW_SIZE times the buffer size. Note
ipconfigTCP_TX_BUFFER_LENGTH is set in FreeRTOSIPConfig.h as it is a standard TCP/IP
stack constant, whereas configECHO_SERVER_TX_WINDOW_SIZE is set in
FreeRTOSConfig.h as it is a demo application constant. */
#ifndef configECHO_SERVER_TX_WINDOW_SIZE
#define configECHO_SERVER_TX_WINDOW_SIZE 2
#endif
/* If ipconfigUSE_TCP_WIN is 1 then the Rx sockets will use a buffer size set by
ipconfigTCP_RX_BUFFER_LENGTH, and the Rx window size will be
configECHO_SERVER_RX_WINDOW_SIZE times the buffer size. Note
ipconfigTCP_RX_BUFFER_LENGTH is set in FreeRTOSIPConfig.h as it is a standard TCP/IP
stack constant, whereas configECHO_SERVER_RX_WINDOW_SIZE is set in
FreeRTOSConfig.h as it is a demo application constant. */
#ifndef configECHO_SERVER_RX_WINDOW_SIZE
#define configECHO_SERVER_RX_WINDOW_SIZE 2
#endif
/*-----------------------------------------------------------*/
/*
* Uses FreeRTOS+TCP to listen for incoming echo connections, creating a task
* to handle each connection.
*/
static void prvConnectionListeningTask( void *pvParameters );
/*
* Created by the connection listening task to handle a single connection.
*/
static void prvServerConnectionInstance( void *pvParameters );
/*-----------------------------------------------------------*/
/* Stores the stack size passed into vStartSimpleTCPServerTasks() so it can be
reused when the server listening task creates tasks to handle connections. */
static uint16_t usUsedStackSize = 0;
/*-----------------------------------------------------------*/
void vStartSimpleTCPServerTasks( uint16_t usStackSize, UBaseType_t uxPriority )
{
/* Create the TCP echo server. */
xTaskCreate( prvConnectionListeningTask, "ServerListener", usStackSize, NULL, uxPriority + 1, NULL );
/* Remember the requested stack size so it can be re-used by the server
listening task when it creates tasks to handle connections. */
usUsedStackSize = usStackSize;
}
/*-----------------------------------------------------------*/
static void prvConnectionListeningTask( void *pvParameters )
{
struct freertos_sockaddr xClient, xBindAddress;
Socket_t xListeningSocket, xConnectedSocket;
socklen_t xSize = sizeof( xClient );
static const TickType_t xReceiveTimeOut = portMAX_DELAY;
const BaseType_t xBacklog = 20;
#if( ipconfigUSE_TCP_WIN == 1 )
WinProperties_t xWinProps;
/* Fill in the buffer and window sizes that will be used by the socket. */
xWinProps.lTxBufSize = ipconfigTCP_TX_BUFFER_LENGTH;
xWinProps.lTxWinSize = configECHO_SERVER_TX_WINDOW_SIZE;
xWinProps.lRxBufSize = ipconfigTCP_RX_BUFFER_LENGTH;
xWinProps.lRxWinSize = configECHO_SERVER_RX_WINDOW_SIZE;
#endif /* ipconfigUSE_TCP_WIN */
/* Just to prevent compiler warnings. */
( void ) pvParameters;
/* Attempt to open the socket. */
xListeningSocket = FreeRTOS_socket( FREERTOS_AF_INET, FREERTOS_SOCK_STREAM, FREERTOS_IPPROTO_TCP );
configASSERT( xListeningSocket != FREERTOS_INVALID_SOCKET );
/* Set a time out so accept() will just wait for a connection. */
FreeRTOS_setsockopt( xListeningSocket, 0, FREERTOS_SO_RCVTIMEO, &xReceiveTimeOut, sizeof( xReceiveTimeOut ) );
/* Set the window and buffer sizes. */
#if( ipconfigUSE_TCP_WIN == 1 )
{
FreeRTOS_setsockopt( xListeningSocket, 0, FREERTOS_SO_WIN_PROPERTIES, ( void * ) &xWinProps, sizeof( xWinProps ) );
}
#endif /* ipconfigUSE_TCP_WIN */
/* Bind the socket to the port that the client task will send to, then
listen for incoming connections. */
xBindAddress.sin_port = tcpechoPORT_NUMBER;
xBindAddress.sin_port = FreeRTOS_htons( xBindAddress.sin_port );
FreeRTOS_bind( xListeningSocket, &xBindAddress, sizeof( xBindAddress ) );
FreeRTOS_listen( xListeningSocket, xBacklog );
for( ;; )
{
/* Wait for a client to connect. */
xConnectedSocket = FreeRTOS_accept( xListeningSocket, &xClient, &xSize );
configASSERT( xConnectedSocket != FREERTOS_INVALID_SOCKET );
/* Spawn a task to handle the connection. */
xTaskCreate( prvServerConnectionInstance, "EchoServer", usUsedStackSize, ( void * ) xConnectedSocket, tskIDLE_PRIORITY, NULL );
}
}
/*-----------------------------------------------------------*/
static void prvServerConnectionInstance( void *pvParameters )
{
int32_t lBytes, lSent, lTotalSent;
Socket_t xConnectedSocket;
static const TickType_t xReceiveTimeOut = pdMS_TO_TICKS( 5000 );
static const TickType_t xSendTimeOut = pdMS_TO_TICKS( 5000 );
TickType_t xTimeOnShutdown;
uint8_t *pucRxBuffer;
xConnectedSocket = ( Socket_t ) pvParameters;
/* Attempt to create the buffer used to receive the string to be echoed
back. This could be avoided using a zero copy interface that just returned
the same buffer. */
pucRxBuffer = ( uint8_t * ) pvPortMalloc( ipconfigTCP_MSS );
if( pucRxBuffer != NULL )
{
FreeRTOS_setsockopt( xConnectedSocket, 0, FREERTOS_SO_RCVTIMEO, &xReceiveTimeOut, sizeof( xReceiveTimeOut ) );
FreeRTOS_setsockopt( xConnectedSocket, 0, FREERTOS_SO_SNDTIMEO, &xSendTimeOut, sizeof( xReceiveTimeOut ) );
for( ;; )
{
/* Zero out the receive array so there is NULL at the end of the string
when it is printed out. */
memset( pucRxBuffer, 0x00, ipconfigTCP_MSS );
/* Receive data on the socket. */
lBytes = FreeRTOS_recv( xConnectedSocket, pucRxBuffer, ipconfigTCP_MSS, 0 );
/* If data was received, echo it back. */
if( lBytes >= 0 )
{
lSent = 0;
lTotalSent = 0;
/* Call send() until all the data has been sent. */
while( ( lSent >= 0 ) && ( lTotalSent < lBytes ) )
{
lSent = FreeRTOS_send( xConnectedSocket, pucRxBuffer, lBytes - lTotalSent, 0 );
lTotalSent += lSent;
}
if( lSent < 0 )
{
/* Socket closed? */
break;
}
}
else
{
/* Socket closed? */
break;
}
}
}
/* Initiate a shutdown in case it has not already been initiated. */
FreeRTOS_shutdown( xConnectedSocket, FREERTOS_SHUT_RDWR );
/* Wait for the shutdown to take effect, indicated by FreeRTOS_recv()
returning an error. */
xTimeOnShutdown = xTaskGetTickCount();
do
{
if( FreeRTOS_recv( xConnectedSocket, pucRxBuffer, ipconfigTCP_MSS, 0 ) < 0 )
{
break;
}
} while( ( xTaskGetTickCount() - xTimeOnShutdown ) < tcpechoSHUTDOWN_DELAY );
/* Finished with the socket, buffer, the task. */
vPortFree( pucRxBuffer );
FreeRTOS_closesocket( xConnectedSocket );
vTaskDelete( NULL );
}
/*-----------------------------------------------------------*/
/* The whole file is excluded if TCP is not compiled in. */
#endif /* ipconfigUSE_TCP */
/*
FreeRTOS V9.0.0 - Copyright (C) 2016 Real Time Engineers Ltd.
All rights reserved
VISIT http://www.FreeRTOS.org TO ENSURE YOU ARE USING THE LATEST VERSION.
This file is part of the FreeRTOS distribution.
FreeRTOS is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License (version 2) as published by the
Free Software Foundation >>!AND MODIFIED BY!<< the FreeRTOS exception.
***************************************************************************
>>! NOTE: The modification to the GPL is included to allow you to !<<
>>! distribute a combined work that includes FreeRTOS without being !<<
>>! obliged to provide the source code for proprietary components !<<
>>! outside of the FreeRTOS kernel. !<<
***************************************************************************
FreeRTOS is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
FOR A PARTICULAR PURPOSE. Full license text is available on the following
link: http://www.freertos.org/a00114.html
***************************************************************************
* *
* FreeRTOS provides completely free yet professionally developed, *
* robust, strictly quality controlled, supported, and cross *
* platform software that is more than just the market leader, it *
* is the industry's de facto standard. *
* *
* Help yourself get started quickly while simultaneously helping *
* to support the FreeRTOS project by purchasing a FreeRTOS *
* tutorial book, reference manual, or both: *
* http://www.FreeRTOS.org/Documentation *
* *
***************************************************************************
http://www.FreeRTOS.org/FAQHelp.html - Having a problem? Start by reading
the FAQ page "My application does not run, what could be wrong?". Have you
defined configASSERT()?
http://www.FreeRTOS.org/support - In return for receiving this top quality
embedded software for free we request you assist our global community by
participating in the support forum.
http://www.FreeRTOS.org/training - Investing in training allows your team to
be as productive as possible as early as possible. Now you can receive
FreeRTOS training directly from Richard Barry, CEO of Real Time Engineers
Ltd, and the world's leading authority on the world's leading RTOS.
http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products,
including FreeRTOS+Trace - an indispensable productivity tool, a DOS
compatible FAT file system, and our tiny thread aware UDP/IP stack.
http://www.FreeRTOS.org/labs - Where new FreeRTOS products go to incubate.
Come and try FreeRTOS+TCP, our new open source TCP/IP stack for FreeRTOS.
http://www.OpenRTOS.com - Real Time Engineers ltd. license FreeRTOS to High
Integrity Systems ltd. to sell under the OpenRTOS brand. Low cost OpenRTOS
licenses offer ticketed support, indemnification and commercial middleware.
http://www.SafeRTOS.com - High Integrity Systems also provide a safety
engineered and independently SIL3 certified version for use in safety and
mission critical applications that require provable dependability.
1 tab == 4 spaces!
*/
/*
* FreeRTOS tasks are used with FreeRTOS+TCP to create a TCP echo server on the
* standard echo port number (7).
*
* See the following web page for essential demo usage and configuration
* details:
* http://www.freertos.org/FreeRTOS-Plus/FreeRTOS_Plus_TCP/TCP_Echo_Server.html
*/
/* Standard includes. */
#include <stdint.h>
#include <stdio.h>
/* FreeRTOS includes. */
#include "FreeRTOS.h"
#include "task.h"
#include "semphr.h"
/* FreeRTOS+TCP includes. */
#include "FreeRTOS_IP.h"
#include "FreeRTOS_Sockets.h"
/* Remove the whole file if FreeRTOSIPConfig.h is set to exclude TCP. */
#if( ipconfigUSE_TCP == 1 )
/* The maximum time to wait for a closing socket to close. */
#define tcpechoSHUTDOWN_DELAY ( pdMS_TO_TICKS( 5000 ) )
/* The standard echo port number. */
#define tcpechoPORT_NUMBER 7
/* If ipconfigUSE_TCP_WIN is 1 then the Tx sockets will use a buffer size set by
ipconfigTCP_TX_BUFFER_LENGTH, and the Tx window size will be
configECHO_SERVER_TX_WINDOW_SIZE times the buffer size. Note
ipconfigTCP_TX_BUFFER_LENGTH is set in FreeRTOSIPConfig.h as it is a standard TCP/IP
stack constant, whereas configECHO_SERVER_TX_WINDOW_SIZE is set in
FreeRTOSConfig.h as it is a demo application constant. */
#ifndef configECHO_SERVER_TX_WINDOW_SIZE
#define configECHO_SERVER_TX_WINDOW_SIZE 2
#endif
/* If ipconfigUSE_TCP_WIN is 1 then the Rx sockets will use a buffer size set by
ipconfigTCP_RX_BUFFER_LENGTH, and the Rx window size will be
configECHO_SERVER_RX_WINDOW_SIZE times the buffer size. Note
ipconfigTCP_RX_BUFFER_LENGTH is set in FreeRTOSIPConfig.h as it is a standard TCP/IP
stack constant, whereas configECHO_SERVER_RX_WINDOW_SIZE is set in
FreeRTOSConfig.h as it is a demo application constant. */
#ifndef configECHO_SERVER_RX_WINDOW_SIZE
#define configECHO_SERVER_RX_WINDOW_SIZE 2
#endif
/*-----------------------------------------------------------*/
/*
* Uses FreeRTOS+TCP to listen for incoming echo connections, creating a task
* to handle each connection.
*/
static void prvConnectionListeningTask( void *pvParameters );
/*
* Created by the connection listening task to handle a single connection.
*/
static void prvServerConnectionInstance( void *pvParameters );
/*-----------------------------------------------------------*/
/* Stores the stack size passed into vStartSimpleTCPServerTasks() so it can be
reused when the server listening task creates tasks to handle connections. */
static uint16_t usUsedStackSize = 0;
/*-----------------------------------------------------------*/
void vStartSimpleTCPServerTasks( uint16_t usStackSize, UBaseType_t uxPriority )
{
/* Create the TCP echo server. */
xTaskCreate( prvConnectionListeningTask, "ServerListener", usStackSize, NULL, uxPriority + 1, NULL );
/* Remember the requested stack size so it can be re-used by the server
listening task when it creates tasks to handle connections. */
usUsedStackSize = usStackSize;
}
/*-----------------------------------------------------------*/
static void prvConnectionListeningTask( void *pvParameters )
{
struct freertos_sockaddr xClient, xBindAddress;
Socket_t xListeningSocket, xConnectedSocket;
socklen_t xSize = sizeof( xClient );
static const TickType_t xReceiveTimeOut = portMAX_DELAY;
const BaseType_t xBacklog = 20;
#if( ipconfigUSE_TCP_WIN == 1 )
WinProperties_t xWinProps;
/* Fill in the buffer and window sizes that will be used by the socket. */
xWinProps.lTxBufSize = ipconfigTCP_TX_BUFFER_LENGTH;
xWinProps.lTxWinSize = configECHO_SERVER_TX_WINDOW_SIZE;
xWinProps.lRxBufSize = ipconfigTCP_RX_BUFFER_LENGTH;
xWinProps.lRxWinSize = configECHO_SERVER_RX_WINDOW_SIZE;
#endif /* ipconfigUSE_TCP_WIN */
/* Just to prevent compiler warnings. */
( void ) pvParameters;
/* Attempt to open the socket. */
xListeningSocket = FreeRTOS_socket( FREERTOS_AF_INET, FREERTOS_SOCK_STREAM, FREERTOS_IPPROTO_TCP );
configASSERT( xListeningSocket != FREERTOS_INVALID_SOCKET );
/* Set a time out so accept() will just wait for a connection. */
FreeRTOS_setsockopt( xListeningSocket, 0, FREERTOS_SO_RCVTIMEO, &xReceiveTimeOut, sizeof( xReceiveTimeOut ) );
/* Set the window and buffer sizes. */
#if( ipconfigUSE_TCP_WIN == 1 )
{
FreeRTOS_setsockopt( xListeningSocket, 0, FREERTOS_SO_WIN_PROPERTIES, ( void * ) &xWinProps, sizeof( xWinProps ) );
}
#endif /* ipconfigUSE_TCP_WIN */
/* Bind the socket to the port that the client task will send to, then
listen for incoming connections. */
xBindAddress.sin_port = tcpechoPORT_NUMBER;
xBindAddress.sin_port = FreeRTOS_htons( xBindAddress.sin_port );
FreeRTOS_bind( xListeningSocket, &xBindAddress, sizeof( xBindAddress ) );
FreeRTOS_listen( xListeningSocket, xBacklog );
for( ;; )
{
/* Wait for a client to connect. */
xConnectedSocket = FreeRTOS_accept( xListeningSocket, &xClient, &xSize );
configASSERT( xConnectedSocket != FREERTOS_INVALID_SOCKET );
/* Spawn a task to handle the connection. */
xTaskCreate( prvServerConnectionInstance, "EchoServer", usUsedStackSize, ( void * ) xConnectedSocket, tskIDLE_PRIORITY, NULL );
}
}
/*-----------------------------------------------------------*/
static void prvServerConnectionInstance( void *pvParameters )
{
int32_t lBytes, lSent, lTotalSent;
Socket_t xConnectedSocket;
static const TickType_t xReceiveTimeOut = pdMS_TO_TICKS( 5000 );
static const TickType_t xSendTimeOut = pdMS_TO_TICKS( 5000 );
TickType_t xTimeOnShutdown;
uint8_t *pucRxBuffer;
xConnectedSocket = ( Socket_t ) pvParameters;
/* Attempt to create the buffer used to receive the string to be echoed
back. This could be avoided using a zero copy interface that just returned
the same buffer. */
pucRxBuffer = ( uint8_t * ) pvPortMalloc( ipconfigTCP_MSS );
if( pucRxBuffer != NULL )
{
FreeRTOS_setsockopt( xConnectedSocket, 0, FREERTOS_SO_RCVTIMEO, &xReceiveTimeOut, sizeof( xReceiveTimeOut ) );
FreeRTOS_setsockopt( xConnectedSocket, 0, FREERTOS_SO_SNDTIMEO, &xSendTimeOut, sizeof( xReceiveTimeOut ) );
for( ;; )
{
/* Zero out the receive array so there is NULL at the end of the string
when it is printed out. */
memset( pucRxBuffer, 0x00, ipconfigTCP_MSS );
/* Receive data on the socket. */
lBytes = FreeRTOS_recv( xConnectedSocket, pucRxBuffer, ipconfigTCP_MSS, 0 );
/* If data was received, echo it back. */
if( lBytes >= 0 )
{
lSent = 0;
lTotalSent = 0;
/* Call send() until all the data has been sent. */
while( ( lSent >= 0 ) && ( lTotalSent < lBytes ) )
{
lSent = FreeRTOS_send( xConnectedSocket, pucRxBuffer, lBytes - lTotalSent, 0 );
lTotalSent += lSent;
}
if( lSent < 0 )
{
/* Socket closed? */
break;
}
}
else
{
/* Socket closed? */
break;
}
}
}
/* Initiate a shutdown in case it has not already been initiated. */
FreeRTOS_shutdown( xConnectedSocket, FREERTOS_SHUT_RDWR );
/* Wait for the shutdown to take effect, indicated by FreeRTOS_recv()
returning an error. */
xTimeOnShutdown = xTaskGetTickCount();
do
{
if( FreeRTOS_recv( xConnectedSocket, pucRxBuffer, ipconfigTCP_MSS, 0 ) < 0 )
{
break;
}
} while( ( xTaskGetTickCount() - xTimeOnShutdown ) < tcpechoSHUTDOWN_DELAY );
/* Finished with the socket, buffer, the task. */
vPortFree( pucRxBuffer );
FreeRTOS_closesocket( xConnectedSocket );
vTaskDelete( NULL );
}
/*-----------------------------------------------------------*/
/* The whole file is excluded if TCP is not compiled in. */
#endif /* ipconfigUSE_TCP */

744
FreeRTOS/Demo/Posix_GCC/src/TCPEchoClient_SingleTasks.c → FreeRTOS/Demo/Posix_GCC/TCPEchoClient_SingleTasks.c
Unescape Escape View File

@ -1,372 +1,372 @@
/*
* FreeRTOS Kernel V10.3.0
* Copyright (C) 2017 Amazon.com, Inc. or its affiliates. All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy of
* this software and associated documentation files (the "Software"), to deal in
* the Software without restriction, including without limitation the rights to
* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
* the Software, and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
* http://www.FreeRTOS.org
* http://aws.amazon.com/freertos
*
* 1 tab == 4 spaces!
*/
/*
* A set of tasks are created that send TCP echo requests to the standard echo
* port (port 7) on the IP address set by the configECHO_SERVER_ADDR0 to
* configECHO_SERVER_ADDR3 constants, then wait for and verify the reply
* (another demo is avilable that demonstrates the reception being performed in
* a task other than that from with the request was made).
*
* See the following web page for essential demo usage and configuration
* details:
* http://www.FreeRTOS.org/FreeRTOS-Plus/FreeRTOS_Plus_TCP/examples_FreeRTOS_simulator.html
*/
/* Standard includes. */
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
/* FreeRTOS includes. */
#include "FreeRTOS.h"
#include "task.h"
#include "queue.h"
/* FreeRTOS+TCP includes. */
#include "FreeRTOS_IP.h"
#include "FreeRTOS_Sockets.h"
/* Exclude the whole file if FreeRTOSIPConfig.h is configured to use UDP only. */
#if ( ipconfigUSE_TCP == 1 )
/* The echo tasks create a socket, send out a number of echo requests, listen
for the echo reply, then close the socket again before starting over. This
delay is used between each iteration to ensure the network does not get too
congested. */
#define echoLOOP_DELAY ( ( TickType_t ) 150 / portTICK_PERIOD_MS )
/* The echo server is assumed to be on port 7, which is the standard echo
protocol port. */
#define echoECHO_PORT ( 7 )
/* The size of the buffers is a multiple of the MSS - the length of the data
sent is a pseudo random size between 20 and echoBUFFER_SIZES. */
#define echoBUFFER_SIZE_MULTIPLIER ( 3 )
#define echoBUFFER_SIZES ( ipconfigTCP_MSS * echoBUFFER_SIZE_MULTIPLIER )
/* The number of instances of the echo client task to create. */
#define echoNUM_ECHO_CLIENTS ( 1 )
/*-----------------------------------------------------------*/
/*
* Uses a socket to send data to, then receive data from, the standard echo
* port number 7.
*/
static void prvEchoClientTask( void *pvParameters );
/*
* Creates a pseudo random sized buffer of data to send to the echo server.
*/
static BaseType_t prvCreateTxData( char *ucBuffer,
uint32_t ulBufferLength );
/*-----------------------------------------------------------*/
/* Rx and Tx time outs are used to ensure the sockets do not wait too long for
missing data. */
static const TickType_t xReceiveTimeOut = pdMS_TO_TICKS( 4000 );
static const TickType_t xSendTimeOut = pdMS_TO_TICKS( 2000 );
/* Counters for each created task - for inspection only. */
static uint32_t ulTxRxCycles[ echoNUM_ECHO_CLIENTS ] = { 0 },
ulTxRxFailures[ echoNUM_ECHO_CLIENTS ] = { 0 },
ulConnections[ echoNUM_ECHO_CLIENTS ] = { 0 };
/* Rx and Tx buffers for each created task. */
static char cTxBuffers[ echoNUM_ECHO_CLIENTS ][ echoBUFFER_SIZES ],
cRxBuffers[ echoNUM_ECHO_CLIENTS ][ echoBUFFER_SIZES ];
/*-----------------------------------------------------------*/
void vStartTCPEchoClientTasks_SingleTasks( uint16_t usTaskStackSize,
UBaseType_t uxTaskPriority )
{
BaseType_t x;
/* Create the echo client tasks. */
for( x = 0; x < echoNUM_ECHO_CLIENTS; x++ )
{
xTaskCreate( prvEchoClientTask, /* The function that implements the task. */
"Echo0", /* Just a text name for the task to aid debugging. */
usTaskStackSize, /* The stack size is defined in FreeRTOSIPConfig.h. */
( void * ) x, /* The task parameter, not used in this case. */
uxTaskPriority, /* The priority assigned to the task is defined in FreeRTOSConfig.h. */
NULL ); /* The task handle is not used. */
}
}
/*-----------------------------------------------------------*/
static void prvEchoClientTask( void *pvParameters )
{
Socket_t xSocket;
struct freertos_sockaddr xEchoServerAddress;
int32_t lLoopCount = 0UL;
const int32_t lMaxLoopCount = 1;
volatile uint32_t ulTxCount = 0UL;
BaseType_t xReceivedBytes, xReturned, xInstance;
BaseType_t lTransmitted, lStringLength;
char *pcTransmittedString, *pcReceivedString;
WinProperties_t xWinProps;
TickType_t xTimeOnEntering;
BaseType_t ret;
/* Fill in the buffer and window sizes that will be used by the socket. */
xWinProps.lTxBufSize = 6 * ipconfigTCP_MSS;
xWinProps.lTxWinSize = 3;
xWinProps.lRxBufSize = 6 * ipconfigTCP_MSS;
xWinProps.lRxWinSize = 3;
/* This task can be created a number of times. Each instance is numbered
to enable each instance to use a different Rx and Tx buffer. The number is
passed in as the task's parameter. */
xInstance = ( BaseType_t ) pvParameters;
/* Point to the buffers to be used by this instance of this task. */
pcTransmittedString = &( cTxBuffers[ xInstance ][ 0 ] );
pcReceivedString = &( cRxBuffers[ xInstance ][ 0 ] );
/* Echo requests are sent to the echo server. The address of the echo
server is configured by the constants configECHO_SERVER_ADDR0 to
configECHO_SERVER_ADDR3 in FreeRTOSConfig.h. */
xEchoServerAddress.sin_port = FreeRTOS_htons( echoECHO_PORT );
xEchoServerAddress.sin_addr = FreeRTOS_inet_addr_quick( configECHO_SERVER_ADDR0,
configECHO_SERVER_ADDR1,
configECHO_SERVER_ADDR2,
configECHO_SERVER_ADDR3 );
for( ; ; )
{
/* Create a TCP socket. */
xSocket = FreeRTOS_socket( FREERTOS_AF_INET, FREERTOS_SOCK_STREAM, FREERTOS_IPPROTO_TCP );
configASSERT( xSocket != FREERTOS_INVALID_SOCKET );
/* Set a time out so a missing reply does not cause the task to block
indefinitely. */
FreeRTOS_setsockopt( xSocket, 0, FREERTOS_SO_RCVTIMEO, &xReceiveTimeOut, sizeof( xReceiveTimeOut ) );
FreeRTOS_setsockopt( xSocket, 0, FREERTOS_SO_SNDTIMEO, &xSendTimeOut, sizeof( xSendTimeOut ) );
/* Set the window and buffer sizes. */
FreeRTOS_setsockopt( xSocket, 0, FREERTOS_SO_WIN_PROPERTIES, ( void * ) &xWinProps, sizeof( xWinProps ) );
/* Connect to the echo server. */
printf( "connecting to echo server....\n" );
ret = FreeRTOS_connect( xSocket, &xEchoServerAddress, sizeof( xEchoServerAddress ) );
if( ret == 0 )
{
printf( "Connected to server.. \n" );
ulConnections[ xInstance ]++;
/* Send a number of echo requests. */
for( lLoopCount = 0; lLoopCount < lMaxLoopCount; lLoopCount++ )
{
/* Create the string that is sent to the echo server. */
lStringLength = prvCreateTxData( pcTransmittedString, echoBUFFER_SIZES );
/* Add in some unique text at the front of the string. */
sprintf( pcTransmittedString, "TxRx message number %u", ulTxCount );
ulTxCount++;
printf( "sending data to the echo server \n" );
/* Send the string to the socket. */
lTransmitted = FreeRTOS_send( xSocket, /* The socket being sent to. */
( void * ) pcTransmittedString, /* The data being sent. */
lStringLength, /* The length of the data being sent. */
0 ); /* No flags. */
if( lTransmitted < 0 )
{
/* Error? */
break;
}
/* Clear the buffer into which the echoed string will be
placed. */
memset( ( void * ) pcReceivedString, 0x00, echoBUFFER_SIZES );
xReceivedBytes = 0;
/* Receive data echoed back to the socket. */
while( xReceivedBytes < lTransmitted )
{
xReturned = FreeRTOS_recv( xSocket, /* The socket being received from. */
&( pcReceivedString[ xReceivedBytes ] ), /* The buffer into which the received data will be written. */
lStringLength - xReceivedBytes, /* The size of the buffer provided to receive the data. */
0 ); /* No flags. */
if( xReturned < 0 )
{
/* Error occurred. Latch it so it can be detected
below. */
xReceivedBytes = xReturned;
break;
}
else if( xReturned == 0 )
{
/* Timed out. */
break;
}
else
{
/* Keep a count of the bytes received so far. */
xReceivedBytes += xReturned;
}
}
/* If an error occurred it will be latched in xReceivedBytes,
otherwise xReceived bytes will be just that - the number of
bytes received from the echo server. */
if( xReceivedBytes > 0 )
{
/* Compare the transmitted string to the received string. */
configASSERT( strncmp( pcReceivedString, pcTransmittedString, lTransmitted ) == 0 );
if( strncmp( pcReceivedString, pcTransmittedString, lTransmitted ) == 0 )
{
/* The echo reply was received without error. */
ulTxRxCycles[ xInstance ]++;
}
else
{
/* The received string did not match the transmitted
string. */
ulTxRxFailures[ xInstance ]++;
break;
}
}
else if( xReceivedBytes < 0 )
{
/* FreeRTOS_recv() returned an error. */
break;
}
else
{
/* Timed out without receiving anything? */
break;
}
}
/* Finished using the connected socket, initiate a graceful close:
FIN, FIN+ACK, ACK. */
FreeRTOS_shutdown( xSocket, FREERTOS_SHUT_RDWR );
/* Expect FreeRTOS_recv() to return an error once the shutdown is
complete. */
xTimeOnEntering = xTaskGetTickCount();
do
{
xReturned = FreeRTOS_recv( xSocket, /* The socket being received from. */
&( pcReceivedString[ 0 ] ), /* The buffer into which the received data will be written. */
echoBUFFER_SIZES, /* The size of the buffer provided to receive the data. */
0 );
if( xReturned < 0 )
{
break;
}
} while( ( xTaskGetTickCount() - xTimeOnEntering ) < xReceiveTimeOut );
}
else
{
printf( "Could not connect to server %ld\n", ret );
}
/* Close this socket before looping back to create another. */
FreeRTOS_closesocket( xSocket );
/* Pause for a short while to ensure the network is not too
congested. */
vTaskDelay( echoLOOP_DELAY );
}
}
/*-----------------------------------------------------------*/
static BaseType_t prvCreateTxData( char *cBuffer,
uint32_t ulBufferLength )
{
BaseType_t lCharactersToAdd, lCharacter;
char cChar = '0';
const BaseType_t lMinimumLength = 60;
/* Randomise the number of characters that will be sent in the echo
request. */
do
{
lCharactersToAdd = ipconfigRAND32() % ( ulBufferLength - 20UL );
} while( ( lCharactersToAdd == 0 ) || ( lCharactersToAdd < lMinimumLength ) ); /* Must be at least enough to add the unique text to the start of the string later. */
/* Fill the buffer. */
for( lCharacter = 0; lCharacter < lCharactersToAdd; lCharacter++ )
{
cBuffer[ lCharacter ] = cChar;
cChar++;
if( cChar > '~' )
{
cChar = '0';
}
}
return lCharactersToAdd;
}
/*-----------------------------------------------------------*/
BaseType_t xAreSingleTaskTCPEchoClientsStillRunning( void )
{
static uint32_t ulLastEchoSocketCount[ echoNUM_ECHO_CLIENTS ] = { 0 }, ulLastConnections[ echoNUM_ECHO_CLIENTS ] = { 0 };
BaseType_t xReturn = pdPASS, x;
/* Return fail is the number of cycles does not increment between
consecutive calls. */
for( x = 0; x < echoNUM_ECHO_CLIENTS; x++ )
{
if( ulTxRxCycles[ x ] == ulLastEchoSocketCount[ x ] )
{
xReturn = pdFAIL;
}
else
{
ulLastEchoSocketCount[ x ] = ulTxRxCycles[ x ];
}
if( ulConnections[ x ] == ulLastConnections[ x ] )
{
xReturn = pdFAIL;
}
else
{
ulConnections[ x ] = ulLastConnections[ x ];
}
}
return xReturn;
}
#endif /* ipconfigUSE_TCP */
/*
* FreeRTOS Kernel V10.3.0
* Copyright (C) 2017 Amazon.com, Inc. or its affiliates. All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy of
* this software and associated documentation files (the "Software"), to deal in
* the Software without restriction, including without limitation the rights to
* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
* the Software, and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
* http://www.FreeRTOS.org
* http://aws.amazon.com/freertos
*
* 1 tab == 4 spaces!
*/
/*
* A set of tasks are created that send TCP echo requests to the standard echo
* port (port 7) on the IP address set by the configECHO_SERVER_ADDR0 to
* configECHO_SERVER_ADDR3 constants, then wait for and verify the reply
* (another demo is avilable that demonstrates the reception being performed in
* a task other than that from with the request was made).
*
* See the following web page for essential demo usage and configuration
* details:
* http://www.FreeRTOS.org/FreeRTOS-Plus/FreeRTOS_Plus_TCP/examples_FreeRTOS_simulator.html
*/
/* Standard includes. */
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
/* FreeRTOS includes. */
#include "FreeRTOS.h"
#include "task.h"
#include "queue.h"
/* FreeRTOS+TCP includes. */
#include "FreeRTOS_IP.h"
#include "FreeRTOS_Sockets.h"
/* Exclude the whole file if FreeRTOSIPConfig.h is configured to use UDP only. */
#if ( ipconfigUSE_TCP == 1 )
/* The echo tasks create a socket, send out a number of echo requests, listen
for the echo reply, then close the socket again before starting over. This
delay is used between each iteration to ensure the network does not get too
congested. */
#define echoLOOP_DELAY ( ( TickType_t ) 150 / portTICK_PERIOD_MS )
/* The echo server is assumed to be on port 7, which is the standard echo
protocol port. */
#define echoECHO_PORT ( 7 )
/* The size of the buffers is a multiple of the MSS - the length of the data
sent is a pseudo random size between 20 and echoBUFFER_SIZES. */
#define echoBUFFER_SIZE_MULTIPLIER ( 3 )
#define echoBUFFER_SIZES ( ipconfigTCP_MSS * echoBUFFER_SIZE_MULTIPLIER )
/* The number of instances of the echo client task to create. */
#define echoNUM_ECHO_CLIENTS ( 1 )
/*-----------------------------------------------------------*/
/*
* Uses a socket to send data to, then receive data from, the standard echo
* port number 7.
*/
static void prvEchoClientTask( void *pvParameters );
/*
* Creates a pseudo random sized buffer of data to send to the echo server.
*/
static BaseType_t prvCreateTxData( char *ucBuffer,
uint32_t ulBufferLength );
/*-----------------------------------------------------------*/
/* Rx and Tx time outs are used to ensure the sockets do not wait too long for
missing data. */
static const TickType_t xReceiveTimeOut = pdMS_TO_TICKS( 4000 );
static const TickType_t xSendTimeOut = pdMS_TO_TICKS( 2000 );
/* Counters for each created task - for inspection only. */
static uint32_t ulTxRxCycles[ echoNUM_ECHO_CLIENTS ] = { 0 },
ulTxRxFailures[ echoNUM_ECHO_CLIENTS ] = { 0 },
ulConnections[ echoNUM_ECHO_CLIENTS ] = { 0 };
/* Rx and Tx buffers for each created task. */
static char cTxBuffers[ echoNUM_ECHO_CLIENTS ][ echoBUFFER_SIZES ],
cRxBuffers[ echoNUM_ECHO_CLIENTS ][ echoBUFFER_SIZES ];
/*-----------------------------------------------------------*/
void vStartTCPEchoClientTasks_SingleTasks( uint16_t usTaskStackSize,
UBaseType_t uxTaskPriority )
{
BaseType_t x;
/* Create the echo client tasks. */
for( x = 0; x < echoNUM_ECHO_CLIENTS; x++ )
{
xTaskCreate( prvEchoClientTask, /* The function that implements the task. */
"Echo0", /* Just a text name for the task to aid debugging. */
usTaskStackSize, /* The stack size is defined in FreeRTOSIPConfig.h. */
( void * ) x, /* The task parameter, not used in this case. */
uxTaskPriority, /* The priority assigned to the task is defined in FreeRTOSConfig.h. */
NULL ); /* The task handle is not used. */
}
}
/*-----------------------------------------------------------*/
static void prvEchoClientTask( void *pvParameters )
{
Socket_t xSocket;
struct freertos_sockaddr xEchoServerAddress;
int32_t lLoopCount = 0UL;
const int32_t lMaxLoopCount = 1;
volatile uint32_t ulTxCount = 0UL;
BaseType_t xReceivedBytes, xReturned, xInstance;
BaseType_t lTransmitted, lStringLength;
char *pcTransmittedString, *pcReceivedString;
WinProperties_t xWinProps;
TickType_t xTimeOnEntering;
BaseType_t ret;
/* Fill in the buffer and window sizes that will be used by the socket. */
xWinProps.lTxBufSize = 6 * ipconfigTCP_MSS;
xWinProps.lTxWinSize = 3;
xWinProps.lRxBufSize = 6 * ipconfigTCP_MSS;
xWinProps.lRxWinSize = 3;
/* This task can be created a number of times. Each instance is numbered
to enable each instance to use a different Rx and Tx buffer. The number is
passed in as the task's parameter. */
xInstance = ( BaseType_t ) pvParameters;
/* Point to the buffers to be used by this instance of this task. */
pcTransmittedString = &( cTxBuffers[ xInstance ][ 0 ] );
pcReceivedString = &( cRxBuffers[ xInstance ][ 0 ] );
/* Echo requests are sent to the echo server. The address of the echo
server is configured by the constants configECHO_SERVER_ADDR0 to
configECHO_SERVER_ADDR3 in FreeRTOSConfig.h. */
xEchoServerAddress.sin_port = FreeRTOS_htons( echoECHO_PORT );
xEchoServerAddress.sin_addr = FreeRTOS_inet_addr_quick( configECHO_SERVER_ADDR0,
configECHO_SERVER_ADDR1,
configECHO_SERVER_ADDR2,
configECHO_SERVER_ADDR3 );
for( ; ; )
{
/* Create a TCP socket. */
xSocket = FreeRTOS_socket( FREERTOS_AF_INET, FREERTOS_SOCK_STREAM, FREERTOS_IPPROTO_TCP );
configASSERT( xSocket != FREERTOS_INVALID_SOCKET );
/* Set a time out so a missing reply does not cause the task to block
indefinitely. */
FreeRTOS_setsockopt( xSocket, 0, FREERTOS_SO_RCVTIMEO, &xReceiveTimeOut, sizeof( xReceiveTimeOut ) );
FreeRTOS_setsockopt( xSocket, 0, FREERTOS_SO_SNDTIMEO, &xSendTimeOut, sizeof( xSendTimeOut ) );
/* Set the window and buffer sizes. */
FreeRTOS_setsockopt( xSocket, 0, FREERTOS_SO_WIN_PROPERTIES, ( void * ) &xWinProps, sizeof( xWinProps ) );
/* Connect to the echo server. */
printf( "connecting to echo server....\n" );
ret = FreeRTOS_connect( xSocket, &xEchoServerAddress, sizeof( xEchoServerAddress ) );
if( ret == 0 )
{
printf( "Connected to server.. \n" );
ulConnections[ xInstance ]++;
/* Send a number of echo requests. */
for( lLoopCount = 0; lLoopCount < lMaxLoopCount; lLoopCount++ )
{
/* Create the string that is sent to the echo server. */
lStringLength = prvCreateTxData( pcTransmittedString, echoBUFFER_SIZES );
/* Add in some unique text at the front of the string. */
sprintf( pcTransmittedString, "TxRx message number %u", ulTxCount );
ulTxCount++;
printf( "sending data to the echo server \n" );
/* Send the string to the socket. */
lTransmitted = FreeRTOS_send( xSocket, /* The socket being sent to. */
( void * ) pcTransmittedString, /* The data being sent. */
lStringLength, /* The length of the data being sent. */
0 ); /* No flags. */
if( lTransmitted < 0 )
{
/* Error? */
break;
}
/* Clear the buffer into which the echoed string will be
placed. */
memset( ( void * ) pcReceivedString, 0x00, echoBUFFER_SIZES );
xReceivedBytes = 0;
/* Receive data echoed back to the socket. */
while( xReceivedBytes < lTransmitted )
{
xReturned = FreeRTOS_recv( xSocket, /* The socket being received from. */
&( pcReceivedString[ xReceivedBytes ] ), /* The buffer into which the received data will be written. */
lStringLength - xReceivedBytes, /* The size of the buffer provided to receive the data. */
0 ); /* No flags. */
if( xReturned < 0 )
{
/* Error occurred. Latch it so it can be detected
below. */
xReceivedBytes = xReturned;
break;
}
else if( xReturned == 0 )
{
/* Timed out. */
break;
}
else
{
/* Keep a count of the bytes received so far. */
xReceivedBytes += xReturned;
}
}
/* If an error occurred it will be latched in xReceivedBytes,
otherwise xReceived bytes will be just that - the number of
bytes received from the echo server. */
if( xReceivedBytes > 0 )
{
/* Compare the transmitted string to the received string. */
configASSERT( strncmp( pcReceivedString, pcTransmittedString, lTransmitted ) == 0 );
if( strncmp( pcReceivedString, pcTransmittedString, lTransmitted ) == 0 )
{
/* The echo reply was received without error. */
ulTxRxCycles[ xInstance ]++;
}
else
{
/* The received string did not match the transmitted
string. */
ulTxRxFailures[ xInstance ]++;
break;
}
}
else if( xReceivedBytes < 0 )
{
/* FreeRTOS_recv() returned an error. */
break;
}
else
{
/* Timed out without receiving anything? */
break;
}
}
/* Finished using the connected socket, initiate a graceful close:
FIN, FIN+ACK, ACK. */
FreeRTOS_shutdown( xSocket, FREERTOS_SHUT_RDWR );
/* Expect FreeRTOS_recv() to return an error once the shutdown is
complete. */
xTimeOnEntering = xTaskGetTickCount();
do
{
xReturned = FreeRTOS_recv( xSocket, /* The socket being received from. */
&( pcReceivedString[ 0 ] ), /* The buffer into which the received data will be written. */
echoBUFFER_SIZES, /* The size of the buffer provided to receive the data. */
0 );
if( xReturned < 0 )
{
break;
}
} while( ( xTaskGetTickCount() - xTimeOnEntering ) < xReceiveTimeOut );
}
else
{
printf( "Could not connect to server %ld\n", ret );
}
/* Close this socket before looping back to create another. */
FreeRTOS_closesocket( xSocket );
/* Pause for a short while to ensure the network is not too
congested. */
vTaskDelay( echoLOOP_DELAY );
}
}
/*-----------------------------------------------------------*/
static BaseType_t prvCreateTxData( char *cBuffer,
uint32_t ulBufferLength )
{
BaseType_t lCharactersToAdd, lCharacter;
char cChar = '0';
const BaseType_t lMinimumLength = 60;
/* Randomise the number of characters that will be sent in the echo
request. */
do
{
lCharactersToAdd = ipconfigRAND32() % ( ulBufferLength - 20UL );
} while( ( lCharactersToAdd == 0 ) || ( lCharactersToAdd < lMinimumLength ) ); /* Must be at least enough to add the unique text to the start of the string later. */
/* Fill the buffer. */
for( lCharacter = 0; lCharacter < lCharactersToAdd; lCharacter++ )
{
cBuffer[ lCharacter ] = cChar;
cChar++;
if( cChar > '~' )
{
cChar = '0';
}
}
return lCharactersToAdd;
}
/*-----------------------------------------------------------*/
BaseType_t xAreSingleTaskTCPEchoClientsStillRunning( void )
{
static uint32_t ulLastEchoSocketCount[ echoNUM_ECHO_CLIENTS ] = { 0 }, ulLastConnections[ echoNUM_ECHO_CLIENTS ] = { 0 };
BaseType_t xReturn = pdPASS, x;
/* Return fail is the number of cycles does not increment between
consecutive calls. */
for( x = 0; x < echoNUM_ECHO_CLIENTS; x++ )
{
if( ulTxRxCycles[ x ] == ulLastEchoSocketCount[ x ] )
{
xReturn = pdFAIL;
}
else
{
ulLastEchoSocketCount[ x ] = ulTxRxCycles[ x ];
}
if( ulConnections[ x ] == ulLastConnections[ x ] )
{
xReturn = pdFAIL;
}
else
{
ulConnections[ x ] = ulLastConnections[ x ];
}
}
return xReturn;
}
#endif /* ipconfigUSE_TCP */

80
FreeRTOS/Demo/Posix_GCC/src/TCPEchoClient_SingleTasks.h → FreeRTOS/Demo/Posix_GCC/TCPEchoClient_SingleTasks.h
Unescape Escape View File

@ -1,40 +1,40 @@
/*
* FreeRTOS Kernel V10.3.0
* Copyright (C) 2017 Amazon.com, Inc. or its affiliates. All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy of
* this software and associated documentation files (the "Software"), to deal in
* the Software without restriction, including without limitation the rights to
* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
* the Software, and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
* http://www.FreeRTOS.org
* http://aws.amazon.com/freertos
*
* 1 tab == 4 spaces!
*/
#ifndef SINGLE_TASK_TCP_ECHO_CLIENTS_H
#define SINGLE_TASK_TCP_ECHO_CLIENTS_H
/*
* Create the TCP echo client tasks. This is the version where an echo request
* is made from the same task that listens for the echo reply.
*/
void vStartTCPEchoClientTasks_SingleTasks( uint16_t usTaskStackSize, UBaseType_t uxTaskPriority );
BaseType_t xAreSingleTaskTCPEchoClientsStillRunning( void );
#endif /* SINGLE_TASK_TCP_ECHO_CLIENTS_H */
/*
* FreeRTOS Kernel V10.3.0
* Copyright (C) 2017 Amazon.com, Inc. or its affiliates. All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy of
* this software and associated documentation files (the "Software"), to deal in
* the Software without restriction, including without limitation the rights to
* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
* the Software, and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
* http://www.FreeRTOS.org
* http://aws.amazon.com/freertos
*
* 1 tab == 4 spaces!
*/
#ifndef SINGLE_TASK_TCP_ECHO_CLIENTS_H
#define SINGLE_TASK_TCP_ECHO_CLIENTS_H
/*
* Create the TCP echo client tasks. This is the version where an echo request
* is made from the same task that listens for the echo reply.
*/
void vStartTCPEchoClientTasks_SingleTasks( uint16_t usTaskStackSize, UBaseType_t uxTaskPriority );
BaseType_t xAreSingleTaskTCPEchoClientsStillRunning( void );
#endif /* SINGLE_TASK_TCP_ECHO_CLIENTS_H */

0
FreeRTOS/Demo/Posix_GCC/src/code_coverage_additions.c → FreeRTOS/Demo/Posix_GCC/code_coverage_additions.c
Unescape Escape View File

0
FreeRTOS/Demo/Posix_GCC/src/console.c → FreeRTOS/Demo/Posix_GCC/console.c
Unescape Escape View File

0
FreeRTOS/Demo/Posix_GCC/src/console.h → FreeRTOS/Demo/Posix_GCC/console.h
Unescape Escape View File

38
FreeRTOS/Demo/Posix_GCC/src/main.c → FreeRTOS/Demo/Posix_GCC/main.c
Unescape Escape View File

@ -26,25 +26,26 @@
*/
/******************************************************************************
* This project provides two demo applications. A simple blinky style project,
* and a more comprehensive test and demo application. The
* mainCREATE_SIMPLE_BLINKY_DEMO_ONLY setting is used to select between the two.
* This project provides three demo applications. A simple blinky style project,
* a more comprehensive test and demo application, and a TCP echo application.
* The mainCREATE_SIMPLE_BLINKY_DEMO_ONLY setting is used to select between
* the two if mainCREATE_TCP_ECHO_TASKS_SINGLE is 0.
* The simply blinky demo is implemented and described in main_blinky.c. The
* more comprehensive test and demo application is implemented and described in
* main_full.c.
* The mainCREATE_TCP_ECHO_TASKS_SINGLE setting is used to select the tcp echo
* application regardless of the value of mainCREATE_SIMPLE_BLINKY_DEMO_ONLY.
*
* This file implements the code that is not demo specific, including the
* hardware setup and FreeRTOS hook functions.
*
*******************************************************************************
* NOTE: Windows will not be running the FreeRTOS demo threads continuously, so
* do not expect to get real time behaviour from the FreeRTOS Windows port, or
* NOTE: Linux will not be running the FreeRTOS demo threads continuously, so
* do not expect to get real time behaviour from the FreeRTOS Linux port, or
* this demo application. Also, the timing information in the FreeRTOS+Trace
* logs have no meaningful units. See the documentation page for the Windows
* logs have no meaningful units. See the documentation page for the Linux
* port for further information:
* http://www.freertos.org/FreeRTOS-Windows-Simulator-Emulator-for-Visual-Studio-and-Eclipse-MingW.html
*
* https://freertos.org/FreeRTOS-simulator-for-Linux.html
*
*******************************************************************************
*/
@ -62,16 +63,21 @@
/* Local includes. */
#include "console.h"
/* This project provides two demo applications. A simple blinky style demo
application, and a more comprehensive test and demo application. The
mainCREATE_SIMPLE_BLINKY_DEMO_ONLY setting is used to select between the two.
/* This project provides three demo applications. A simple blinky style demo
application, a more comprehensive test and demo application, and a TCP
echo application. The mainCREATE_SIMPLE_BLINKY_DEMO_ONLY and
mainCREATE_TCP_ECHO_TASKS_SINGLE settings are used to select between the three.
If mainCREATE_SIMPLE_BLINKY_DEMO_ONLY is 1 then the blinky demo will be built.
If mainCREATE_SIMPLE_BLINKY_DEMO_ONLY is 1 & mainCREATE_TCP_ECHO_TASKS_SINGLE
is not 1 then the blinky demo will be built.
The blinky demo is implemented and described in main_blinky.c.
If mainCREATE_SIMPLE_BLINKY_DEMO_ONLY is not 1 then the comprehensive test and
If mainCREATE_SIMPLE_BLINKY_DEMO_ONLY is not 1 &
mainCREATE_TCP_ECHO_TASKS_SINGLE is not 1 then the comprehensive test and
demo application will be built. The comprehensive test and demo application is
implemented and described in main_full.c. */
implemented and described in main_full.c the tcp echo demo application
is implemented in main_networking.c. */
#ifndef mainCREATE_SIMPLE_BLINKY_DEMO_ONLY
#define mainCREATE_SIMPLE_BLINKY_DEMO_ONLY 0
#endif
@ -223,7 +229,7 @@ void vApplicationStackOverflowHook( TaskHandle_t pxTask,
configCHECK_FOR_STACK_OVERFLOW is defined to 1 or 2. This hook
function is called if a stack overflow is detected. This function is
provided as an example only as stack overflow checking does not function
when running the FreeRTOS Windows port. */
when running the FreeRTOS POSIX port. */
vAssertCalled( __FILE__, __LINE__ );
}
/*-----------------------------------------------------------*/

0
FreeRTOS/Demo/Posix_GCC/src/main_blinky.c → FreeRTOS/Demo/Posix_GCC/main_blinky.c
Unescape Escape View File

0
FreeRTOS/Demo/Posix_GCC/src/main_full.c → FreeRTOS/Demo/Posix_GCC/main_full.c
Unescape Escape View File

0
FreeRTOS/Demo/Posix_GCC/src/main_networking.c → FreeRTOS/Demo/Posix_GCC/main_networking.c
Unescape Escape View File

0
FreeRTOS/Demo/Posix_GCC/src/run-time-stats-utils.c → FreeRTOS/Demo/Posix_GCC/run-time-stats-utils.c
Unescape Escape View File

2
FreeRTOS/Demo/Posix_GCC/src/trcConfig.h → FreeRTOS/Demo/Posix_GCC/trcConfig.h
Unescape Escape View File

@ -113,7 +113,7 @@ extern "C" {
* TRC_FREERTOS_VERSION_9_0_2 If using FreeRTOS v9.0.2
* TRC_FREERTOS_VERSION_10_0_0 If using FreeRTOS v10.0.0 or later
*****************************************************************************/
#define TRC_CFG_FREERTOS_VERSION TRC_FREERTOS_VERSION_10_0_0
#define TRC_CFG_FREERTOS_VERSION TRC_FREERTOS_VERSION_10_4_0
/*******************************************************************************
* TRC_CFG_SCHEDULING_ONLY

0
FreeRTOS/Demo/Posix_GCC/src/trcSnapshotConfig.h → FreeRTOS/Demo/Posix_GCC/trcSnapshotConfig.h
Unescape Escape View File

0
FreeRTOS/Demo/Posix_GCC/src/utils/wait_for_event.c → FreeRTOS/Demo/Posix_GCC/utils/wait_for_event.c
Unescape Escape View File

0
FreeRTOS/Demo/Posix_GCC/src/utils/wait_for_event.h → FreeRTOS/Demo/Posix_GCC/utils/wait_for_event.h
Unescape Escape View File

Write Preview
Loading…
Cancel
Save