70 lines
2.1 KiB
C
70 lines
2.1 KiB
C
/*
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* $QNXLicenseC:
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* Copyright 2007, QNX Software Systems. All Rights Reserved.
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*
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* You must obtain a written license from and pay applicable license fees to QNX
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* Software Systems before you may reproduce, modify or distribute this software,
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* or any work that includes all or part of this software. Free development
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* licenses are available for evaluation and non-commercial purposes. For more
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* information visit http://licensing.qnx.com or email licensing@qnx.com.
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*
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* This file may contain contributions from others. Please review this entire
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* file for other proprietary rights or license notices, as well as the QNX
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* Development Suite License Guide at http://licensing.qnx.com/license-guide/
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* for other information.
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* $
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*/
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#include <errno.h>
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#include <stdlib.h>
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#include "asyncmsg_priv.h"
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/* This is painful. We have to prepare receive buf, and associate
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* it with the chid, so we will know where to receive
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*/
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int asyncmsg_channel_create(unsigned flags, mode_t mode, size_t buffer_size, unsigned max_num_buffer, const struct sigevent *ev, int (*recvbuf_callback)(size_t bufsize, unsigned num_bufs, void*bufs[], int flags))
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{
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struct _asyncmsg_channel_context *acc;
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int chid;
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if ((acc = (struct _asyncmsg_channel_context *)malloc(sizeof(*acc))) == NULL) {
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return -1;
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}
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memset(acc, 0, sizeof(*acc));
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if ((errno = pthread_mutex_init(&acc->mutex, 0)) != EOK) {
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free(acc);
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return -1;
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}
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acc->recvbuf_cb = recvbuf_callback;
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acc->max_num_buffer = max_num_buffer;
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acc->buffer_size = buffer_size;
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if ((acc->iovs = malloc(sizeof(iov_t) * max_num_buffer)) == NULL) {
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free(acc);
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return -1;
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}
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if ((chid = ChannelCreateExt(flags | _NTO_CHF_ASYNC, mode, buffer_size, max_num_buffer, ev, NULL)) == -1) {
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pthread_mutex_destroy(&acc->mutex);
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free(acc->iovs);
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free(acc);
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return -1;
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}
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if (_asyncmsg_handle(chid, _ASYNCMSG_HANDLE_ADD | _ASYNCMSG_HANDLE_CHANNEL, acc) == NULL) {
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asyncmsg_channel_destroy(chid);
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free(acc->iovs);
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free(acc);
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return -1;
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}
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return chid;
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}
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__SRCVERSION("asyncmsg_channel_create.c $Rev: 153052 $");
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