Squash: Guess config files by FHS

.github/ISSUE_TEMPLATE

@@ -3,26 +3,30 @@ name: File bug
 about: File bug to improve SRS
 title: ''
 labels: ''
-assignees: ''
+assignees: 'winlinvip'
 
 ---
 
-> 注意：不提供以下信息的Issue会被直接删除(Please follow issue template, or we will delete it)
-
-> 注意：咨询和讨论请提交到SRS星球(Please ask question at) http://bbs.ossrs.net
+> 注意：提问前，请先看FAQ(Please read FAQ before file an issue) https://github.com/ossrs/srs/issues/2716
 
 **描述(Description)**
 
 > 描述你遇到了什么问题(Please description your issue here)
 
 1. SRS版本(Version): `xxxxxx`
+
 1. SRS的日志如下(Log):
 ```
+
 xxxxxxxxxxxx
+
 ```
+
 1. SRS的配置如下(Config):
 ```
+
 xxxxxxxxxxxx
+
 ```
 
 **重现(Replay)**

trunk/doc/CHANGELOG.md

@@ -30,6 +30,8 @@ The changelog for SRS.
 
 ## SRS 4.0 Changelog
 
+* v4.0, 2021-11-07, Merge [#2711](https://github.com/ossrs/srs/pull/2711): Config: Guess config files by [FHS](https://en.wikipedia.org/wiki/Filesystem_Hierarchy_Standard). v4.0.194
+* v4.0, 2021-11-07, Merge [#2714](https://github.com/ossrs/srs/pull/2714): DVR: copy req from publish. v4.0.193
 * v4.0, 2021-11-04, Merge [#2707](https://github.com/ossrs/srs/pull/2707): Refuse edge request when state is stopping. v4.0.192
 * v4.0, 2021-11-02, Auto create package by github actions. v4.0.191
 * v4.0, 2021-10-30, Merge [#2552](https://github.com/ossrs/srs/pull/2552): Script: Refine CentOS7 service script to restart SRS. v4.0.190

trunk/src/app/srs_app_config.cpp

@@ -1956,8 +1956,8 @@ srs_error_t SrsConfig::parse_options(int argc, char** argv)
         }
     }
     
-    // config
-    show_help = true;
+    // Show help if has any argv
+    show_help = argc > 1;
     for (int i = 1; i < argc; i++) {
         if ((err = parse_argv(i, argv)) != srs_success) {
             return srs_error_wrap(err, "parse argv");
@@ -1981,20 +1981,44 @@ srs_error_t SrsConfig::parse_options(int argc, char** argv)
     // first hello message.
     srs_trace(_srs_version);
 
-    if (config_file.empty()) {
-        return srs_error_new(ERROR_SYSTEM_CONFIG_INVALID, "no config, read help: %s -h", argv[0]);
+    // Try config files as bellow:
+    //      config_file Specified by user, like conf/srs.conf
+    //      try_docker_config Guess by SRS, like conf/docker.conf
+    //      try_fhs_config For FHS, try /etc/srs/srs.conf first, @see https://github.com/ossrs/srs/pull/2711
+    if (!srs_path_exists(config_file)) {
+        vector<string> try_config_files;
+        if (!config_file.empty()) {
+            try_config_files.push_back(config_file);
+            if (srs_string_ends_with(config_file, "docker.conf")) {
+                try_config_files.push_back(srs_string_replace(config_file, "docker.conf", "srs.conf"));
+            }
+        }
+        try_config_files.push_back(SRS_CONF_DEFAULT_COFNIG_FILE);
+        if (srs_string_ends_with(SRS_CONF_DEFAULT_COFNIG_FILE, "docker.conf")) {
+            try_config_files.push_back(srs_string_replace(SRS_CONF_DEFAULT_COFNIG_FILE, "docker.conf", "srs.conf"));
+        }
+        try_config_files.push_back("/etc/srs/srs.conf");
+
+        string exists_config_file;
+        for (int i = 0; i < (int) try_config_files.size(); i++) {
+            string try_config_file = try_config_files.at(i);
+            if (srs_path_exists(try_config_file)) {
+                exists_config_file = try_config_file;
+                break;
+            }
         }
 
-    // For docker, if config is not specified, try srs.conf instead.
-    string try_config = srs_string_replace(config_file, "docker.conf", "srs.conf");
-    if (!srs_path_exists(config_file) && try_config != config_file) {
-        if (!srs_path_exists(try_config)) {
-            return srs_error_new(ERROR_SYSTEM_CONFIG_INVALID, "no config file %s or %s", config_file.c_str(), try_config.c_str());
-        }
-        srs_warn("user config %s does not exists, use %s instead", config_file.c_str(), try_config.c_str());
-        config_file = try_config;
+        if (exists_config_file.empty()) {
+            return srs_error_new(ERROR_SYSTEM_CONFIG_INVALID, "no config file at %s", srs_join_vector_string(try_config_files, ", ").c_str());
         }
 
+        if (config_file != exists_config_file) {
+            srs_warn("user config %s does not exists, use %s instead", config_file.c_str(), exists_config_file.c_str());
+            config_file = exists_config_file;
+        }
+    }
+
+    // Parse the matched config file.
     err = parse_file(config_file.c_str());
     
     if (test_conf) {
@@ -3567,8 +3591,8 @@ int SrsConfig::get_rtc_server_reuseport()
 
 #if !defined(SO_REUSEPORT)
     if (v > 1) {
-        srs_warn("REUSEPORT not supported, reset %d to %d", reuseport, DEFAULT);
-        v = 1
+        srs_warn("REUSEPORT not supported, reset to 1");
+        v = 1;
     }
 #endif
 

trunk/src/core/srs_core_version4.hpp

@@ -9,6 +9,6 @@
 
 #define VERSION_MAJOR       4
 #define VERSION_MINOR       0
-#define VERSION_REVISION    192
+#define VERSION_REVISION    194
 
 #endif

trunk/src/utest/srs_utest_service.cpp

@@ -69,27 +69,18 @@ class MockTcpHandler : public ISrsTcpHandler
 private:
 	srs_netfd_t fd;
 public:
-	MockTcpHandler();
-	virtual ~MockTcpHandler();
-public:
-    virtual srs_error_t on_tcp_client(srs_netfd_t stfd);
-};
-
-MockTcpHandler::MockTcpHandler()
-{
+	MockTcpHandler() {
         fd = NULL;
 	}
-
-MockTcpHandler::~MockTcpHandler()
-{
+	virtual ~MockTcpHandler() {
         srs_close_stfd(fd);
 	}
-
-srs_error_t MockTcpHandler::on_tcp_client(srs_netfd_t stfd)
-{
+public:
+    virtual srs_error_t on_tcp_client(srs_netfd_t stfd) {
         fd = stfd;
         return srs_success;
 	}
+};
 
 VOID TEST(TCPServerTest, PingPong)
 {
@@ -1459,7 +1450,7 @@ public:
     int r0;
     int r1;
     SrsFastCoroutine trd;
-    MockStopSelfThread() : trd("mock", this), r0(0), r1(0) {
+    MockStopSelfThread() : r0(0), r1(0), trd("mock", this) {
     }
     virtual ~MockStopSelfThread() {
     }
@@ -1476,12 +1467,88 @@ public:
     }
 };
 
-VOID TEST(StopSelfThreadTest, ShouldFailWhenStopSelf)
+VOID TEST(ThreadCriticalTest, ShouldFailWhenStopSelf)
 {
+    srs_error_t err;
     MockStopSelfThread trd;
-    trd.start();
+    HELPER_EXPECT_SUCCESS(trd.start());
+
+    // Switch to thread cycle, should fail.
     srs_usleep(0);
     EXPECT_EQ(-1, trd.r0);
     EXPECT_EQ(EDEADLK, trd.r1);
 }
 
+class MockAsyncReaderThread : public ISrsCoroutineHandler
+{
+public:
+    SrsFastCoroutine trd;
+    srs_netfd_t fd;
+    MockAsyncReaderThread(srs_netfd_t v) : trd("mock", this), fd(v) {
+    }
+    virtual ~MockAsyncReaderThread() {
+    }
+    srs_error_t start() {
+        return trd.start();
+    }
+    void stop() {
+        trd.stop();
+    }
+    virtual srs_error_t cycle() {
+        srs_error_t err = srs_success;
+        while (true) {
+            if ((err = trd.pull()) != srs_success) {
+                return err;
+            }
+            char buf[16] = {0};
+            if (st_read((st_netfd_t)fd, buf, sizeof(buf), SRS_UTIME_NO_TIMEOUT) <= 0) {
+                break;
+            }
+        }
+        return err;
+    }
+};
+
+VOID TEST(ThreadCriticalTest, FailIfCloseActiveFD)
+{
+    srs_error_t err;
+
+    MockTcpHandler h;
+    SrsTcpListener l(&h, _srs_tmp_host, _srs_tmp_port);
+    HELPER_EXPECT_SUCCESS(l.listen());
+
+    SrsTcpClient c0(_srs_tmp_host, _srs_tmp_port, _srs_tmp_timeout);
+    HELPER_EXPECT_SUCCESS(c0.connect());
+
+    srs_usleep(30 * SRS_UTIME_MILLISECONDS);
+    EXPECT_TRUE(h.fd != NULL);
+
+    MockAsyncReaderThread trd0(h.fd);
+    HELPER_EXPECT_SUCCESS(trd0.start());
+
+    MockAsyncReaderThread trd1(h.fd);
+    HELPER_EXPECT_SUCCESS(trd1.start());
+
+    // Wait for all threads to run.
+    srs_usleep(10 * SRS_UTIME_MILLISECONDS);
+
+    // Should fail when close, because there is 2 threads reading fd.
+    int r0 = st_netfd_close((st_netfd_t)h.fd);
+    EXPECT_EQ(-1, r0);
+    EXPECT_EQ(EBUSY, errno);
+
+    // Stop thread1, still fail because thread0 is reading fd.
+    trd1.stop();
+    r0 = st_netfd_close((st_netfd_t)h.fd);
+    EXPECT_EQ(-1, r0);
+    EXPECT_EQ(EBUSY, errno);
+
+    // Stop thread0, should success, no threads is reading fd.
+    trd0.stop();
+    r0 = st_netfd_close((st_netfd_t)h.fd);
+    EXPECT_EQ(0, r0);
+
+    // Set fd to NULL to avoid close fail for EBADF.
+    h.fd = NULL;
+}
+