Log: Use string compare function

trunk/src/app/srs_app_recv_thread.cpp

@@ -373,7 +373,7 @@ srs_error_t SrsPublishRecvThread::consume(SrsCommonMessage* msg)
     srs_error_t err = srs_success;
     
     // when cid changed, change it.
-    if (!ncid.equals(cid)) {
+    if (ncid.compare(cid)) {
         _srs_context->set_id(ncid);
         cid = ncid;
     }

trunk/src/app/srs_app_rtc_source.cpp

@@ -291,13 +291,13 @@ srs_error_t SrsRtcSource::on_source_id_changed(SrsContextId id)
 {
     srs_error_t err = srs_success;
 
-    if (_source_id.equals(id)) {
+    if (!_source_id.compare(id)) {
         return err;
     }
 
     if (_pre_source_id.empty()) {
         _pre_source_id = id;
-    } else if (!_pre_source_id.equals(_source_id)) {
+    } else if (_pre_source_id.compare(_source_id)) {
         _pre_source_id = _source_id;
     }
 

trunk/src/app/srs_app_source.cpp

@@ -2068,13 +2068,13 @@ srs_error_t SrsSource::on_source_id_changed(SrsContextId id)
 {
     srs_error_t err = srs_success;
     
-    if (_source_id.equals(id)) {
+    if (!_source_id.compare(id)) {
         return err;
     }
     
     if (_pre_source_id.empty()) {
         _pre_source_id = id;
-    } else if (!_pre_source_id.equals(_source_id)) {
+    } else if (_pre_source_id.compare(_source_id)) {
         _pre_source_id = _source_id;
     }
     

trunk/src/core/srs_core.hpp

@@ -113,8 +113,10 @@
 class SrsCplxError;
 typedef SrsCplxError* srs_error_t;
 
-// The context ID, it default to a string object, we can also use other objects.
 #include <string>
+// The context ID, it default to a string object, we can also use other objects.
+// @remark User can directly user string as SrsContextId, we user struct to ensure the context is an object.
+#if 1
 struct _SrsContextId
 {
     std::string v_;
@@ -132,10 +134,18 @@ struct _SrsContextId
     bool empty() {
         return v_.empty();
     }
-    bool equals(const _SrsContextId& to) {
+    // Compare the two context id. @see http://www.cplusplus.com/reference/string/string/compare/
-        return v_ == to.v_;
+    //      0	They compare equal
+    //      <0	Either the value of the first character that does not match is lower in the compared string, or all compared characters match but the compared string is shorter.
+    //      >0	Either the value of the first character that does not match is greater in the compared string, or all compared characters match but the compared string is longer.
+    int compare(const _SrsContextId& to) {
+        return v_.compare(to.v_);
     }
 };
 typedef _SrsContextId SrsContextId;
+#else
+// Actually, we can directly user string as SrsContextId.
+typedef std::string SrsContextId;
+#endif
 
 #endif

trunk/src/utest/srs_utest_app.cpp

@@ -222,14 +222,14 @@ VOID TEST(AppCoroutineTest, Cycle)
         MockCoroutineHandler ch;
         SrsSTCoroutine sc("test", &ch, SrsContextId("250"));
         ch.trd = ≻
-        EXPECT_TRUE(sc.cid().equals(SrsContextId("250")));
+        EXPECT_TRUE(!sc.cid().compare(SrsContextId("250")));
 
         EXPECT_TRUE(srs_success == sc.start());
         EXPECT_TRUE(srs_success == sc.pull());
 
         // After running, the cid in cycle should equal to the thread.
         srs_cond_timedwait(ch.running, 100 * SRS_UTIME_MILLISECONDS);
-        EXPECT_TRUE(ch.cid.equals(SrsContextId("250")));
+        EXPECT_TRUE(!ch.cid.compare(SrsContextId("250")));
     }
 
     if (true) {

trunk/src/utest/srs_utest_service.cpp

@@ -1383,8 +1383,8 @@ VOID TEST(TCPServerTest, ContextUtility)
         SrsThreadContext ctx;
 
         EXPECT_TRUE(ctx.set_id(SrsContextId("100")).empty());
-        EXPECT_TRUE(ctx.set_id(SrsContextId("1000")).equals(SrsContextId("100")));
+        EXPECT_TRUE(!ctx.set_id(SrsContextId("1000")).compare(SrsContextId("100")));
-        EXPECT_TRUE(ctx.get_id().equals(SrsContextId("1000")));
+        EXPECT_TRUE(!ctx.get_id().compare(SrsContextId("1000")));
 
         ctx.clear_cid();
         EXPECT_TRUE(ctx.set_id(SrsContextId("100")).empty());