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patch: mqueue improvements

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move callback handler to 'struct mqueue'
This commit is contained in:
Alfred E. Heggestad 2013-03-09 11:00:38 +00:00
parent ba87f31c41
commit e1125a5334
2 changed files with 14 additions and 11 deletions
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6
include/re_mqueue.h
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@ -6,7 +6,7 @@
struct mqueue;
typedef void (mqueue_h)(int id, void *data);
typedef void (mqueue_h)(int id, void *data, void *arg);
int mqueue_alloc(struct mqueue **mqp);
int mqueue_push(struct mqueue *mq, mqueue_h *h, int id, void *data);
int mqueue_alloc(struct mqueue **mqp, mqueue_h *h, void *arg);
int mqueue_push(struct mqueue *mq, int id, void *data);

19
src/mqueue/mqueue.c
View file

@ -23,10 +23,11 @@
*/
struct mqueue {
int pfd[2];
mqueue_h *h;
void *arg;
};
struct msg {
mqueue_h *h;
int id;
void *data;
uint32_t magic;
@ -71,8 +72,7 @@ static void event_handler(int flags, void *arg)
return;
}
if (msg.h)
msg.h(msg.id, msg.data);
mq->h(msg.id, msg.data, mq->arg);
}
@ -80,21 +80,26 @@ static void event_handler(int flags, void *arg)
* Allocate a new Message Queue
*
* @param mqp Pointer to allocated Message Queue
* @param h Message handler
* @param arg Handler argument
*
* @return 0 if success, otherwise errorcode
*/
int mqueue_alloc(struct mqueue **mqp)
int mqueue_alloc(struct mqueue **mqp, mqueue_h *h, void *arg)
{
struct mqueue *mq;
int err = 0;
if (!mqp)
if (!mqp || !h)
return EINVAL;
mq = mem_zalloc(sizeof(*mq), destructor);
if (!mq)
return ENOMEM;
mq->h = h;
mq->arg = arg;
mq->pfd[0] = mq->pfd[1] = -1;
if (pipe(mq->pfd) < 0) {
err = errno;
@ -119,13 +124,12 @@ int mqueue_alloc(struct mqueue **mqp)
* Push a new message onto the Message Queue
*
* @param mq Message Queue
* @param h Message handler
* @param id General purpose Identifier
* @param data Application data
*
* @return 0 if success, otherwise errorcode
*/
int mqueue_push(struct mqueue *mq, mqueue_h *h, int id, void *data)
int mqueue_push(struct mqueue *mq, int id, void *data)
{
struct msg msg;
ssize_t n;
@ -133,7 +137,6 @@ int mqueue_push(struct mqueue *mq, mqueue_h *h, int id, void *data)
if (!mq)
return EINVAL;
msg.h = h;
msg.id = id;
msg.data = data;
msg.magic = MAGIC;