feat add console sink

tile/base/internal/logging.cc

@@ -1,5 +1,6 @@
 #include "tile/base/internal/logging.h"
 #include <cassert>
+#include <cstdio>
 #include <iostream>
 #include <map>
 #include <mutex>
@@ -9,6 +10,14 @@ namespace tile {
 namespace internal {
 namespace logging {
 
+static const char *LOG_CONST_TABLE[][3] = {
+    {"\033[46;37m", "\033[36m", "I"},
+    {"\033[43;37m", "\033[33m", "W"},
+    {"\033[41;37m", "\033[31m", "E"},
+    {"\033[44;37m", "\033[34m", "T"},
+    {"\033[42;37m", "\033[32m", "D"},
+};
+
 namespace {
 std::vector<PrefixAppender *> *
 GetProviers()
@@ -97,7 +106,12 @@ public:
     {
         if (has_been_flushed_) { return; }
 
-        num_chars_to_log_         = stream_.pcount();
+        num_chars_to_log_ = stream_.pcount();
+        if (num_chars_to_log_ == 0) {
+            message_text_[0] = '\n';
+            ++num_chars_to_log_;
+        }
+
         const bool append_newline = message_text_[num_chars_to_log_ - 1] != '\n';
         char original_final_char  = '\0';
 
@@ -108,11 +122,18 @@ public:
         message_text_[num_chars_to_log_] = '\0';
 
         {
-            std::lock_guard<std::mutex> _{g_log_mutex};
+            std::lock_guard<std::mutex> _(g_log_mutex);
             (this->*(send_method_))();
             ++g_num_messages[severity_];
             WaitForSinks();
-            if (sink_) { sink_->Flush(); }
+            if (sink_) {
+                try {
+                    sink_->Flush();
+                } catch (const std::exception &e) {
+                    fprintf(stderr, "\nLogSink[name=%s], reason=%s\n", sink_->name(), e.what());
+                    assert(false);
+                }
+            }
         }
 
         if (append_newline) { message_text_[num_chars_to_log_ - 1] = original_final_char; }
@@ -163,8 +184,10 @@ private:
         if (g_sink_count.load(std::memory_order_relaxed) == 0) {
             ColoredWriteToStdout(severity_, message_text_ + num_prefix_chars_, num_chars_to_log_ - num_chars_to_log_);
         }
-        LogToSinks(severity_, fullname(), basename(), line(), time(), message_text_ + num_prefix_chars_,
-                   num_chars_to_log_ - num_prefix_chars_ - 1);
+        // HACK: temp fix
+        auto msg_len = num_chars_to_log_ - num_prefix_chars_ - 1;
+        msg_len      = msg_len > (LogMessage::kMaxLogMessageLen + 1) ? 0 : msg_len;
+        LogToSinks(severity_, fullname(), basename(), line(), time(), message_text_ + num_prefix_chars_, msg_len);
     }
 
     void SendToSinkAndLog()
@@ -392,6 +415,11 @@ LogSink::ToString(LogSeverity severity,
 static void
 ColoredWriteToStderrOrStdout(FILE *output, LogSeverity severity, const char *message, size_t len)
 {
+    char buf[30];
+    {
+        int n = snprintf(buf, 30, "%s", internal::logging::LOG_CONST_TABLE[severity][1]);
+        fwrite(buf, n, 1, output);
+    }
     fwrite(message, len, 1, output);
     fflush(output);
 }
@@ -446,7 +474,12 @@ LogToSinks(LogSeverity severity,
     std::lock_guard<std::mutex> _(g_sink_mutex);
     for (auto &&sink : g_sinks) {
         if (sink->ShouldLog(severity)) {
-            sink->Send(severity, full_filename, base_filename, line, time, message, message_len);
+            try {
+                sink->Send(severity, full_filename, base_filename, line, time, message, message_len);
+            } catch (const std::exception &e) {
+                fprintf(stderr, "\nLogSink[name=%s], reason=%s\n", sink->name(), e.what());
+                assert(false);
+            }
         }
     }
 }
@@ -455,7 +488,14 @@ void
 WaitForSinks()
 {
     std::lock_guard<std::mutex> _(g_sink_mutex);
-    for (auto &&sink : g_sinks) { sink->Flush(); }
+    for (auto &&sink : g_sinks) {
+        try {
+            sink->Flush();
+        } catch (const std::exception &e) {
+            fprintf(stderr, "\nLogSink[name=%s], reason=%s\n", sink->name(), e.what());
+            assert(false);
+        }
+    }
 }
 
 const char *

tile/base/internal/logging.h

@@ -610,6 +610,7 @@ public:
     using Ptr = std::shared_ptr<LogSink>;
 
     virtual ~LogSink();
+    virtual const char *name() const = 0;
     virtual bool ShouldLog(LogSeverity severity);
     virtual void Send(LogSeverity severity,
                       const char *full_filename,

tile/base/internal/logging_test.cc

@@ -11,13 +11,15 @@
 struct AwesomeLogSink : public tile::LogSink {
     static std::shared_ptr<AwesomeLogSink> Create() { return std::make_shared<AwesomeLogSink>(); }
 
-    virtual void Send(tile::LogSeverity severity,
-                      const char *full_filename,
-                      const char *base_filename,
-                      int line,
-                      const tile::LogMessageTime &logmsgtime,
-                      const char *message,
-                      size_t message_len) override
+    const char *name() const override { return "AwesomeLogSink"; }
+
+    void Send(tile::LogSeverity severity,
+              const char *full_filename,
+              const char *base_filename,
+              int line,
+              const tile::LogMessageTime &logmsgtime,
+              const char *message,
+              size_t message_len) override
     {
         msgs.emplace_back(std::string(message, message_len));
     }

tile/base/logging/basic_file_sink.h

@@ -14,6 +14,9 @@ public:
     static Ptr Create(const std::string &filepath);
 
     ~BasicFileSink() override;
+
+    const char *name() const override { return "BasicFileSink"; }
+
     void Send(LogSeverity severity,
               const char *full_filename,
               const char *base_filename,

tile/base/logging/console_sink.cc

@@ -22,12 +22,8 @@ ConsoleSink::Send(LogSeverity severity,
                   size_t message_len)
 {
     auto msg = ToString(severity, full_filename, base_filename, line, logmsgtime, message, message_len);
-    while (!msg.empty() && msg.back() == '\n') { msg.pop_back(); }
-    if (severity >= TILE_FATAL) {
-        fprintf(stderr, "%s\n", msg.c_str());
-    } else {
-        fprintf(stdout, "%s\n", msg.c_str());
-    }
+    while (!msg.empty() && msg.back() != '\n') { msg.push_back('\n'); }
+    ColoredWriteToStdout(severity, msg.c_str(), msg.size());
 }
 
 void

tile/base/logging/console_sink.h

@@ -11,6 +11,8 @@ public:
     using Ptr = std::shared_ptr<ConsoleSink>;
     static Ptr Create();
 
+    const char *name() const override { return "ConsoleSink"; }
+
     ~ConsoleSink() override;
     void Send(LogSeverity severity,
               const char *full_filename,

tile/base/logging/splitter_sink.h

@@ -14,6 +14,8 @@ public:
     static Ptr Create();
     static Ptr Create(std::initializer_list<std::shared_ptr<LogSink>> init_list);
 
+    const char *name() const override { return "SplitterSink"; }
+
     ~SplitterSink() override;
 
     void Send(LogSeverity severity,

tile/base/logging/splitter_sink_test.cc

@@ -8,6 +8,8 @@ public:
 
     static Ptr Create() { return std::shared_ptr<SimpleSink>(new SimpleSink()); }
 
+    const char *name() const override { return "SimpleSink"; }
+
     void Send(LogSeverity severity,
               const char *full_filename,
               const char *base_filename,