static int __init alsa_seq_oss_init(void)
{
int rc;
if ((rc = register_device()) < 0)
goto error;
if ((rc = register_proc()) < 0) {
unregister_device();
goto error;
}
if ((rc = snd_seq_oss_create_client()) < 0) {
unregister_proc();
unregister_device();
goto error;
}
rc = snd_seq_driver_register(&seq_oss_synth_driver);
if (rc < 0) {
snd_seq_oss_delete_client();
unregister_proc();
unregister_device();
goto error;
}
/* success */
snd_seq_oss_synth_init();
error:
return rc;
}
static void __exit alsa_seq_oss_exit(void)
{
snd_seq_device_unregister_driver(SNDRV_SEQ_DEV_ID_OSS);
snd_seq_oss_delete_client();
unregister_proc();
unregister_device();
}
static void __exit alsa_seq_oss_exit(void)
{
snd_seq_driver_unregister(&seq_oss_synth_driver);
snd_seq_oss_delete_client();
unregister_proc();
unregister_device();
}
static int __init alsa_seq_oss_init(void)
{
int rc;
static struct snd_seq_dev_ops ops = {
snd_seq_oss_synth_register,
snd_seq_oss_synth_unregister,
};
snd_seq_autoload_lock();
if ((rc = register_device()) < 0)
goto error;
if ((rc = register_proc()) < 0) {
unregister_device();
goto error;
}
if ((rc = snd_seq_oss_create_client()) < 0) {
unregister_proc();
unregister_device();
goto error;
}
if ((rc = snd_seq_device_register_driver(SNDRV_SEQ_DEV_ID_OSS, &ops,
sizeof(struct snd_seq_oss_reg))) < 0) {
snd_seq_oss_delete_client();
unregister_proc();
unregister_device();
goto error;
}
/* success */
snd_seq_oss_synth_init();
error:
snd_seq_autoload_unlock();
return rc;
}
void sigchld_handler( int signum ) {
logger log = { debug_function };
log.debug( INFO(4), "> sigchld_handler()" );
pid_t cpid;
int cstatus;
while( ( cpid = waitpid( -1, &cstatus, WNOHANG ) ) > 0 ) {
log.debug( INFO(5), "WNOHANG pid = %d, status = %d", cpid, cstatus );
if( is_fgproc( cpid ) ) {
decrement_fgproc();
unregister_proc( cpid );
} else if( is_bgproc( cpid ) ) {
set_status_proc( cpid, cstatus );
add_bgproc_queue( cpid );
} else {
log.debug( DEBUG_ERROR, "process type = NONE [ cpid=%d, cstatus=%d ]", cpid, cstatus );
}
}
}
