Function syslog_add_intbuffer

drivers/syslog/syslog_intbuffer.c:146–176

 ****************************************************************************/

void syslog_add_intbuffer(FAR const char *buffer, size_t buflen)
{
  irqstate_t flags;
  size_t space;

  /* Disable concurrent modification from interrupt handling logic */

  flags = spin_lock_irqsave_notrace(&g_syslog_intbuffer.splock);

  space = circbuf_space(&g_syslog_intbuffer.circ);

  if (space >= buflen)
    {
      circbuf_write(&g_syslog_intbuffer.circ, buffer, buflen);
    }
  else if (buflen <= sizeof(g_syslog_intbuffer.buffer))
    {
      syslog_flush_internal(true, buflen - space);
      circbuf_write(&g_syslog_intbuffer.circ, buffer, buflen);
    }
  else
    {
      syslog_flush_internal(true, sizeof(g_syslog_intbuffer.buffer));
      space = buflen - sizeof(g_syslog_intbuffer.buffer);
      syslog_write_foreach(buffer, space, true);
      circbuf_write(&g_syslog_intbuffer.circ,
                    buffer + space, buflen - space);
    }

  spin_unlock_irqrestore_notrace(&g_syslog_intbuffer.splock, flags);
}

/****************************************************************************
 * Name: syslog_flush_intbuffer