mediacore-hid/src/log/log.cpp
2018-09-24 15:45:06 +00:00

67 lines
No EOL
1.5 KiB
C++

#include "log.hpp"
#include <string.h>
#include <stdio.h>
#include <cstdarg>
#include <stdint.h>
std::string logPrintf(std::string &format,...)
{
uint32_t BUFFER_LEN = 256;
char buffer[BUFFER_LEN];
va_list argptr;
va_start(argptr, format);
// force buffer to zeroes
memset(buffer, 0x00, BUFFER_LEN);
// use vsnprintf to parse
vsnprintf(buffer, BUFFER_LEN-1, format.c_str(), argptr);
va_end(argptr);
return std::string(buffer);
}
Log::Log(std::string ident, int facility) {
facility_ = facility;
priority_ = LOG_DEBUG;
strncpy(ident_, ident.c_str(), sizeof(ident_));
ident_[sizeof(ident_)-1] = '\0';
openlog(ident_, LOG_PID, facility_);
}
int Log::sync() {
if (buffer_.length()) {
syslog(priority_, buffer_.c_str());
buffer_.erase();
priority_ = LOG_DEBUG; // default to debug for each message
}
return 0;
}
int Log::overflow(int c) {
if (c != EOF) {
buffer_ += static_cast<char>(c);
} else {
sync();
}
return c;
}
std::ostream& operator<< (std::ostream& os, const LogPriority& log_priority) {
static_cast<Log *>(os.rdbuf())->priority_ = (int)log_priority;
return os;
}
// Static init function
void Log::Init(std::string ident, int facility)
{
std::clog.rdbuf(new Log(ident, facility));
}
// Static init function with default facility
void Log::Init(std::string ident)
{
Log::Init(ident,LOG_LOCAL0);
}