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Add thread safe log prefix assignment

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This commit is contained in:
Benau 2020-02-28 09:35:11 +08:00
parent 56fb1b9cba
commit d63c68af78
2 changed files with 19 additions and 9 deletions
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18
src/utils/log.cpp
View File

@ -21,6 +21,7 @@
#include "config/user_config.hpp"
#include "network/network_config.hpp"
#include "utils/file_utils.hpp"
#include "utils/tls.hpp"
#include <cstdio>
#include <ctime>
@ -42,10 +43,21 @@
Log::LogLevel Log::m_min_log_level = Log::LL_VERBOSE;
bool Log::m_no_colors = false;
FILE* Log::m_file_stdout = NULL;
std::string Log::m_prefix = "";
size_t Log::m_buffer_size = 1;
bool Log::m_console_log = true;
Synchronised<std::vector<struct Log::LineInfo> > Log::m_line_buffer;
thread_local char g_prefix[11] = {};
// ----------------------------------------------------------------------------
void Log::setPrefix(const char* prefix)
{
size_t len = strlen(prefix);
if (len > 10)
len = 10;
if (len != 0)
memcpy(g_prefix, prefix, len);
g_prefix[len] = 0;
} // setPrefix
// ----------------------------------------------------------------------------
/** Selects background/foreground colors for the message depending on
@ -155,9 +167,9 @@ void Log::printMessage(int level, const char *component, const char *format,
int index = 0;
int remaining = MAX_LENGTH;
if (!m_prefix.empty())
if (strlen(g_prefix) != 0)
{
index += snprintf(line+index, remaining, "%s ", m_prefix.c_str());
index += snprintf(line+index, remaining, "%s ", g_prefix);
remaining = MAX_LENGTH - index > 0 ? MAX_LENGTH - index : 0;
}

8
src/utils/log.hpp
View File

@ -78,9 +78,6 @@ private:
** the maximum number of lines the buffer should hold. */
static size_t m_buffer_size;
/** An optional prefix to be printed. */
static std::string m_prefix;
static void setTerminalColor(LogLevel level);
static void resetTerminalColor();
static void writeLine(const char *line, int level);
@ -152,7 +149,8 @@ public:
} // disableColor
// ------------------------------------------------------------------------
/** Sets a prefix to be printed before each line. To disable the prefix,
* set it to "". */
static void setPrefix(const std::string &prefix) { m_prefix = prefix; }
* set it to "", max length of prefix is 10, if larger than that the
* remaining characters are ignored. */
static void setPrefix(const char* prefix);
}; // Log
#endif