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50 lines
866 B
C++
50 lines
866 B
C++
/*
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# see: https://github.com/winlinvip/simple-rtmp-server/wiki/v1_SrsLinuxArm
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arm-linux-gnueabi-g++ -o jmp jmp.cpp -static
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arm-linux-gnueabi-strip jmp
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <setjmp.h>
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jmp_buf env_func1, env_func2;
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int sum = 0;
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void func1() {
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int ret = setjmp(env_func1);
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printf("setjmp func1 ret=%d\n", ret);
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if (sum <= 0) {
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return;
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}
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if (sum++ > 1000) {
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return;
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}
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// jmp to func2
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longjmp(env_func2, 3);
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}
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void func2() {
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int ret = setjmp(env_func2);
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printf("setjmp func2 ret=%d\n", ret);
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if (sum <= 0) {
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return;
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}
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// jmp to func1
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longjmp(env_func1, 2);
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}
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int main(int argc, char** argv) {
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printf("hello, setjmp/longjmp!\n");
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func1();
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sum++;
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func2();
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printf("jmp finished, sum=%d\n", sum);
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return 0;
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}
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