/*
* Copyright 2002, Log4cpp Project. All rights reserved.
*
* See the COPYING file for the terms of usage and distribution.
*/
#include <cstdlib>
#include <log4cpp/threading/Threading.hh>
#if defined(LOG4CPP_HAVE_THREADING) && defined(LOG4CPP_USE_PTHREADS)
namespace log4cpp {
namespace threading {
std::string getThreadId() {
char buffer[4 * sizeof(long)];
int bufsize = sizeof(buffer) / sizeof(buffer[0]);
int n = ::snprintf(buffer, bufsize, "%lu", pthread_self()); // thread id unsigned
if (n >= bufsize) {
// escape to heap allocation
char* buff_alloc;
int size = ::asprintf(&buff_alloc, "%lu", pthread_self()); // thread id unsigned
if (size < 0) {
throw std::bad_alloc();
}
std::string res(buff_alloc);
free(buff_alloc);
return res;
}
return std::string(buffer);
}
} // namespace threading
} // namespace log4cpp
#endif // LOG4CPP_HAVE_THREADING && LOG4CPP_USE_PTHREADS
