struct msgqueue * msgqueue_create( uint32_t size )
{
struct msgqueue * self = NULL;
self = (struct msgqueue *)malloc( sizeof(struct msgqueue) );
if ( self )
{
self->popfd = -1;
self->pushfd = -1;
pthread_mutex_init( &self->lock, 0 );
if ( QUEUE_INIT(taskqueue)(&self->queue, size) != 0 )
{
msgqueue_destroy( self );
self = NULL;
}
else
{
int32_t rc = -1;
int32_t fds[2] = { -1, -1 };
rc = pipe( fds );
//rc = socketpair( AF_UNIX, SOCK_STREAM, 0, fds );
if ( rc == -1 )
{
msgqueue_destroy( self );
self = NULL;
}
else
{
self->popfd = fds[0];
self->pushfd = fds[1];
#ifdef O_NOATIME
// linux在读pipe的时候会更新访问时间, touch_atime(), 这个的开销也不小
fcntl( self->popfd, F_SETFL, O_NOATIME );
#endif
}
}
}
return self;
}
int32_t iothread_stop( struct iothread * self )
{
if ( self->queue )
{
msgqueue_destroy( self->queue );
self->queue = NULL;
}
if ( self->cmdevent )
{
evsets_del( self->sets, self->cmdevent );
event_destroy( self->cmdevent );
self->cmdevent = NULL;
}
if ( self->sets )
{
evsets_destroy( self->sets );
self->sets = NULL;
}
return 0;
}