Function keycache_pthread_cond_wait

mysys/mf_keycache.c:4342–4388

static int keycache_pthread_cond_wait(mysql_cond_t *cond,
                                      mysql_mutex_t *mutex)
{
  int rc;
  struct timeval  now;            /* time when we started waiting        */
  struct timespec timeout;        /* timeout value for the wait function */
  struct timezone tz;
#if defined(KEYCACHE_DEBUG)
  int cnt=0;
#endif

  /* Get current time */
  gettimeofday(&now, &tz);
  /* Prepare timeout value */
  timeout.tv_sec= now.tv_sec + KEYCACHE_TIMEOUT;
 /*
   timeval uses microseconds.
   timespec uses nanoseconds.
   1 nanosecond = 1000 micro seconds
 */
  timeout.tv_nsec= now.tv_usec * 1000;
  KEYCACHE_THREAD_TRACE_END("started waiting");
#if defined(KEYCACHE_DEBUG)
  cnt++;
  if (cnt % 100 == 0)
    fprintf(keycache_debug_log, "waiting...\n");
    fflush(keycache_debug_log);
#endif
  rc= mysql_cond_timedwait(cond, mutex, &timeout);
  KEYCACHE_THREAD_TRACE_BEGIN("finished waiting");
  if (rc == ETIMEDOUT || rc == ETIME)
  {
#if defined(KEYCACHE_DEBUG)
    fprintf(keycache_debug_log,"aborted by keycache timeout\n");
    fclose(keycache_debug_log);
    abort();
#endif
    keycache_dump();
  }

#if defined(KEYCACHE_DEBUG)
  KEYCACHE_DBUG_ASSERT(rc != ETIMEDOUT);
#else
  assert(rc != ETIMEDOUT);
#endif
  return rc;
}
#else
#if defined(KEYCACHE_DEBUG)
static int keycache_pthread_cond_wait(mysql_cond_t *cond,