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/*
* logger.cpp
*
* Created on: 2014. 2. 7.
* Author: kos
*/
#include <time.h>
#include <unistd.h>
#include <string.h>
#include <sys/types.h>
#include "Logger.h"
#define USE_COLOR_LOG 1
static char log_data_buffer[MAX_PRINT_LEN] = {0};
#ifdef USE_COLOR_LOG
static const char* LOG_LV_STR[] = {
"[ NONE]",
"\e[1;31m[ ERROR]\e[00m",
"\e[1;33m[WARNING]\e[00m",
"\e[1;32m[ INFO]\e[00m",
"\e[1;36m[ DEBUG]\e[00m",
"[ LOG]"
};
#else
static const char* LOG_LV_STR[] = {
"[ NONE]",
"[ ERROR]",
"[WARNING]",
"[ INFO]",
"[ DEBUG]",
"[ LOG]"
};
#endif
//----------------------------------------------------------------------
char* timestamp(const char* aFormat)
{
time_t t;
time(&t);
struct tm* m = localtime(&t);
static char sz_timestamp[32] = {0};
strftime(sz_timestamp, sizeof(sz_timestamp), aFormat, m);
return sz_timestamp;
}
//----------------------------------------------------------------------
Logger::Logger()
: mLogLevel(0), mLogHandle(0)
{
mPid = getpid();
}
//----------------------------------------------------------------------
Logger::~Logger()
{
if (mLogHandle) {
fclose(mLogHandle);
mLogHandle = 0;
}
}
//----------------------------------------------------------------------
void Logger::set_pid()
{
mPid = getpid();
}
//----------------------------------------------------------------------
Logger* Logger::instance()
{
if (mInstHandle == 0) {
mInstHandle = new Logger();
atexit(logger_release);
}
return mInstHandle;
}
//----------------------------------------------------------------------
bool Logger::init(const char* aName, int aLogLevel, bool aWithTimestamp, const char* aVersion)
{
mLogLevel = aLogLevel;
if (aName == NULL) {
mLogHandle = stdout;
INFO("logger initialized.");
return true;
}
char path[256] = {0};
if (aWithTimestamp)
sprintf(path, "%s_%s.log", aName, timestamp("%Y%m%d"));
else sprintf(path, "%s.log", aName);
if (!(mLogHandle = fopen(path, "a+"))) {
mLogHandle = 0;
printf("fail to open logger [%s].", path);
return false;
}
DUMMY("Logger initialized. (Ver %s)", aVersion);
return true;
}
//----------------------------------------------------------------------
void Logger::hexlog(const char *header, const char *buffer, const int length, const char *aFormat, ...)
{
int offset = 0, i = 0, ll = 0;
FILE* output = mLogHandle;
memset(log_data_buffer, 0, MAX_PRINT_LEN);
va_list args;
va_start(args, aFormat);
ll = vsnprintf(log_data_buffer, MAX_PRINT_LEN-1, aFormat, args);
va_end(args);
if (ll > MAX_PRINT_LEN - 1) {
ll = MAX_PRINT_LEN - 1;
}
fprintf(output, "%s\n", log_data_buffer);
fprintf(output, "HEX DUMP : [%s]-[%d]\n", header, length);
fprintf(output, "-----------------------------------------------------------------------------\n");
while (offset < length) {
char *tmp = (char*) (buffer + offset);
int tmp_len = (offset + 16 < length) ? 16 : (length - offset);
fprintf(output, "%08X: ", offset);
for (i = 0; i < tmp_len; i++) {
if (i == 8) fprintf(output, " ");
fprintf(output, "%02X ", (unsigned char) tmp[i]);
}
for (i = 0; i <= (16 - tmp_len) * 3; i++)
fprintf(output, " ");
if (tmp_len < 9) fprintf(output, " ");
for (i = 0; i < tmp_len; i++)
fprintf(output, "%c", (tmp[i] >= 0x20 && tmp[i] <= 0x7E) ? tmp[i] : '.');
offset += 16; fprintf(output, "\n");
}
if (offset == 0) fprintf(output, "%08X: ", offset);
fprintf(output, "-----------------------------------------------------------------------------\n");
fflush(output);
}
//----------------------------------------------------------------------
void Logger::log(const char* aFormat, ...)
{
memset(log_data_buffer, 0, MAX_PRINT_LEN);
va_list args;
va_start(args, aFormat);
vsnprintf(log_data_buffer, MAX_PRINT_LEN-1, aFormat, args);
va_end(args);
fprintf(mLogHandle, "%s\n", log_data_buffer);
fflush(mLogHandle);
}
//----------------------------------------------------------------------
void Logger::log(int aLogLevel, const char* aFormat, ...)
{
#ifndef _DISABLE_LOGGER
if (aLogLevel > mLogLevel || mLogHandle == 0) {
//printf("mLogHandle : %p, mLogLevel : %d, aLogLevel : %d\n", mLogHandle, mLogLevel, aLogLevel);
return;
}
memset(log_data_buffer, 0, MAX_PRINT_LEN);
va_list args;
va_start(args, aFormat);
vsnprintf(log_data_buffer, MAX_PRINT_LEN-1, aFormat, args);
va_end(args);
fprintf(mLogHandle, "[%s]%s[%d] %s\n", timestamp(DEFAULT_TIMESTAMP_FORMAT), LOG_LV_STR[aLogLevel], mPid, log_data_buffer);
fflush(mLogHandle);
#endif
}
//----------------------------------------------------------------------
Logger* Logger::mInstHandle = 0;
//----------------------------------------------------------------------
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