SANE_Pid
sanei_thread_waitpid( SANE_Pid pid, int *status )
{
#ifdef USE_PTHREAD
int *ls;
#else
int ls;
#endif
SANE_Pid result;
int stat;
stat = 0;
DBG(2, "sanei_thread_waitpid() - %ld\n",
sanei_thread_pid_to_long(pid));
#ifdef USE_PTHREAD
int rc;
rc = pthread_join( (pthread_t)pid, (void*)&ls );
if( 0 == rc ) {
if( PTHREAD_CANCELED == ls ) {
DBG(2, "* thread has been canceled!\n" );
stat = SANE_STATUS_GOOD;
} else {
stat = *ls;
}
DBG(2, "* result = %d (%p)\n", stat, (void*)status );
result = pid;
}
if ( EDEADLK == rc ) {
if ( (pthread_t)pid != pthread_self() ) {
/* call detach in any case to make sure that the thread resources
* will be freed, when the thread has terminated
*/
DBG(2, "* detaching thread(%ld)\n", pid );
pthread_detach((pthread_t)pid);
}
}
if (status)
*status = stat;
restore_sigpipe();
#else
result = waitpid( pid, &ls, 0 );
if((result < 0) && (errno == ECHILD)) {
stat = SANE_STATUS_GOOD;
result = pid;
} else {
stat = eval_wp_result( pid, result, ls );
DBG(2, "* result = %d (%p)\n", stat, (void*)status );
}
if( status )
*status = stat;
#endif
return result;
}
int
sanei_thread_sendsig( SANE_Pid pid, int sig )
{
DBG(2, "sanei_thread_sendsig() %d to thread (id=%ld)\n", sig,
sanei_thread_pid_to_long(pid));
#ifdef USE_PTHREAD
return pthread_kill( (pthread_t)pid, sig );
#else
return kill( pid, sig );
#endif
}
int
sanei_thread_kill( SANE_Pid pid )
{
DBG(2, "sanei_thread_kill() will kill %ld\n",
sanei_thread_pid_to_long(pid));
#ifdef USE_PTHREAD
#if defined (__APPLE__) && defined (__MACH__)
return pthread_kill((pthread_t)pid, SIGUSR2);
#else
return pthread_cancel((pthread_t)pid);
#endif
#elif defined HAVE_OS2_H
return DosKillThread(pid);
#else
return kill( pid, SIGTERM );
#endif
}
