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/* vim:ts=8:sts=4:sw=4:noai:noexpandtab
*
* Asynchronous receive thread helper
*
* Copyright (c) 2006-2009 Miru Limited.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef __PGM_ASYNC_H__
#define __PGM_ASYNC_H__
struct async_event_t;
#include <errno.h>
#include <pgm/pgm.h>
#ifdef __cplusplus
extern "C" {
#endif
struct async_t {
pgm_sock_t* sock;
#ifndef _WIN32
pthread_t thread;
int notify_pipe[2];
int destroy_pipe[2];
pthread_mutex_t pthread_mutex;
#else
HANDLE thread;
HANDLE notify_event;
HANDLE destroy_event;
HANDLE win32_mutex;
#endif
struct async_event_t *head, *tail;
unsigned length;
bool is_destroyed;
};
typedef struct async_t async_t;
int async_create (async_t** restrict, pgm_sock_t*const restrict);
int async_destroy (async_t* const);
ssize_t async_recv (async_t*const restrict, void* restrict, size_t);
ssize_t async_recvfrom (async_t*const restrict, void*restrict, size_t, struct pgm_sockaddr_t*restrict, socklen_t*restrict);
#ifndef _WIN32
static inline int async_get_fd (async_t* async)
{
if (NULL == async) {
errno = EINVAL;
return -1;
}
return async->notify_pipe[0];
}
#else
static inline HANDLE async_get_event (async_t* async)
{
if (NULL == async) {
errno = EINVAL;
return NULL;
}
return async->notify_event;
}
#endif /* _WIN32 */
#ifdef __cplusplus
}
#endif
#endif /* __PGM_ASYNC_H__ */
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