feature support log control

src/ulib/log/level.h

@@ -18,9 +18,19 @@ namespace tqcq {
 #define ULOG_LEVEL_OFF (ULOG_LEVEL_FATAL + 1)
 #define ULOG_LEVEL_LEVEL ULOG_LEVEL_TRACE
 
+// env control
+// trace
+// debug
+// info
+// warn
+// error
+// fatal
+
 class Level {
 public:
     enum LevelEnum {
+        kALL = ULOG_LEVEL_ALL,
+        kOFF = ULOG_LEVEL_OFF,
         kTrace = ULOG_LEVEL_TRACE,
         kDebug= ULOG_LEVEL_DEBUG,
         kInfo = ULOG_LEVEL_INFO,

src/ulib/log/log.h

@@ -16,6 +16,7 @@ namespace tqcq {
 
 #define ULOG_SET_STRIPPED_PREFIX_LEN(len) ::tqcq::Logger::GetInstance().SetStrippedPrefixLen(len)
 
+
 #if ULOG_LEVEL <= ULOG_LEVEL_TRACE
 #define ULOG_TRACE(...) _ULOG(ULOG_LEVEL_TRACE, __VA_ARGS__)
 #else

src/ulib/log/logger.cpp

@@ -8,7 +8,9 @@
 #include <sstream>
 #include <stdarg.h>
 #include <string.h>
+#include <stdlib.h>
 #include <sys/time.h>
+#include <algorithm>
 
 namespace tqcq {
 
@@ -19,13 +21,26 @@ Logger::GetInstance()
     return instance;
 }
 
-Logger::Logger() {}
+Logger::Logger() {
+    const char* env_level = getenv("ULIB_LOG_LEVEL");
+    printf("ULIB_LOG_LEVEL: %s\n", env_level);
+    if (!env_level) {
+        level_ = Level::kALL;
+    } else {
+        int level = atoi(env_level);
+        level = std::max(static_cast<int>(Level::kALL), std::min(static_cast<int>(Level::kOFF), level));
+        level_ = static_cast<Level::LevelEnum>(level);
+    }
+}
 
 Logger::~Logger() {}
 
 void
 Logger::Log(int32_t level, const char *file, const char *func, int32_t line, const char* tag, const char *msg)
 {
+    if (level < level_) {
+        return;
+    }
     const char *level_name = Level::ToString(level);
     /**
      * @brief time file:line@func tag level_name msg

src/ulib/log/logger.h

@@ -24,6 +24,7 @@ private:
     Logger &operator=(const Logger &);
 
     size_t stripped_prefix_len_;
+    Level::LevelEnum level_;
 };
 
 }// namespace tqcq