C++ pj_pool_calloc函数代码示例

/* API */
PJ_DEF(pj_status_t) pjmedia_avi_dev_create_factory(
				    pj_pool_factory *pf,
				    unsigned max_dev,
				    pjmedia_vid_dev_factory **p_ret)
{
    struct avi_factory *cf;
    pj_pool_t *pool;
    pj_status_t status;

    pool = pj_pool_create(pf, "avidevfc%p", 512, 512, NULL);
    cf = PJ_POOL_ZALLOC_T(pool, struct avi_factory);
    cf->pf = pf;
    cf->pool = pool;
    cf->dev_count = max_dev;
    cf->base.op = &factory_op;

    cf->dev_info = (struct avi_dev_info*)
 		   pj_pool_calloc(cf->pool, cf->dev_count,
 				  sizeof(struct avi_dev_info));

    if (p_ret) {
	*p_ret = &cf->base;
    }

    status = pjmedia_vid_register_factory(NULL, &cf->base);
    if (status != PJ_SUCCESS)
	return status;

    PJ_LOG(4, (THIS_FILE, "AVI dev factory created with %d virtual device(s)",
	       cf->dev_count));

    return PJ_SUCCESS;
}

PJ_DEF(pj_hash_table_t*) pj_hash_create(pj_pool_t *pool, unsigned size)
{
    pj_hash_table_t *h;
    unsigned table_size;
    
    /* Check that PJ_HASH_ENTRY_BUF_SIZE is correct. */
    PJ_ASSERT_RETURN(sizeof(pj_hash_entry)<=PJ_HASH_ENTRY_BUF_SIZE, NULL);

    h = PJ_POOL_ALLOC_T(pool, pj_hash_table_t);
    h->count = 0;

    PJ_LOG( 6, ("hashtbl", "hash table %p created from pool %s", h, pj_pool_getobjname(pool)));

    /* size must be 2^n - 1.
       round-up the size to this rule, except when size is 2^n, then size
       will be round-down to 2^n-1.
     */
    table_size = 8;
    do {
	table_size <<= 1;    
    } while (table_size < size);
    table_size -= 1;
    
    h->rows = table_size;
    h->table = (pj_hash_entry**)
    	       pj_pool_calloc(pool, table_size+1, sizeof(pj_hash_entry*));
    return h;
}

/*
 * pj_thread_create(...)
 */
PJ_DEF(pj_status_t) pj_thread_create( pj_pool_t *pool, 
                                      const char *thread_name,
				      pj_thread_proc *proc, 
                                      void *arg,
				      pj_size_t stack_size, 
				      unsigned flags,
                                      pj_thread_t **thread_ptr)
{
    DWORD dwflags = 0;
    pj_thread_t *rec;

    PJ_CHECK_STACK();
    PJ_ASSERT_RETURN(pool && proc && thread_ptr, PJ_EINVAL);

    /* Set flags */
    if (flags & PJ_THREAD_SUSPENDED)
	dwflags |= CREATE_SUSPENDED;

    /* Create thread record and assign name for the thread */
    rec = (struct pj_thread_t*) pj_pool_calloc(pool, 1, sizeof(pj_thread_t));
    if (!rec)
	return PJ_ENOMEM;

    /* Set name. */
    if (!thread_name)
	thread_name = "thr%p";

    if (strchr(thread_name, '%')) {
	pj_ansi_snprintf(rec->obj_name, PJ_MAX_OBJ_NAME, thread_name, rec);
    } else {
	pj_ansi_strncpy(rec->obj_name, thread_name, PJ_MAX_OBJ_NAME);
	rec->obj_name[PJ_MAX_OBJ_NAME-1] = '\0';
    }

    PJ_LOG(6, (rec->obj_name, "Thread created"));

#if defined(PJ_OS_HAS_CHECK_STACK) && PJ_OS_HAS_CHECK_STACK!=0
    rec->stk_size = stack_size ? (pj_uint32_t)stack_size : 0xFFFFFFFFUL;
    rec->stk_max_usage = 0;
#endif

    /* Create the thread. */
    rec->proc = proc;
    rec->arg = arg;
    rec->hthread = CreateThread(NULL, stack_size, 
				thread_main, rec,
				dwflags, &rec->idthread);
    if (rec->hthread == NULL)
	return PJ_RETURN_OS_ERROR(GetLastError());

    /* Success! */
    *thread_ptr = rec;
    return PJ_SUCCESS;
}

/*
 * Notification on completion of DNS SRV resolution.
 */
static void dns_srv_resolver_cb(void *user_data,
                                pj_status_t status,
                                const pj_dns_srv_record *rec)
{
    pj_tcp_session *sess = (pj_tcp_session*) user_data;
    unsigned i, cnt, tot_cnt;

    /* Clear async resolver */
    sess->dns_async = NULL;

    /* Check failure */
    if (status != PJ_SUCCESS) {
        sess_shutdown(sess, status);
        return;
    }

    /* Calculate total number of server entries in the response */
    tot_cnt = 0;
    for (i=0; i<rec->count; ++i) {
        tot_cnt += rec->entry[i].server.addr_count;
    }

    if (tot_cnt > PJ_TCP_MAX_DNS_SRV_CNT)
        tot_cnt = PJ_TCP_MAX_DNS_SRV_CNT;

    /* Allocate server entries */
    sess->srv_addr_list = (pj_sockaddr*)
                          pj_pool_calloc(sess->pool, tot_cnt,
                                         sizeof(pj_sockaddr));

    /* Copy results to server entries */
    for (i=0, cnt=0; i<rec->count && cnt<PJ_TCP_MAX_DNS_SRV_CNT; ++i) {
        unsigned j;

        for (j=0; j<rec->entry[i].server.addr_count &&
                cnt<PJ_TCP_MAX_DNS_SRV_CNT; ++j)
        {
            pj_sockaddr_in *addr = &sess->srv_addr_list[cnt].ipv4;

            addr->sin_family = sess->af;
            addr->sin_port = pj_htons(rec->entry[i].port);
            addr->sin_addr.s_addr = rec->entry[i].server.addr[j].s_addr;

            ++cnt;
        }
    }
    sess->srv_addr_cnt = (pj_uint16_t)cnt;

    /* Set current server */
    sess->srv_addr = &sess->srv_addr_list[0];

    /* Set state to PJ_TCP_STATE_RESOLVED */
    pj_tcp_session_set_state(sess, PJ_TCP_STATE_RESOLVED);
}

PJ_DEF(pj_status_t) pj_atomic_create( pj_pool_t *pool, 
				      pj_atomic_value_t value,
				      pj_atomic_t **ptr_var)
{
    pj_atomic_t *t = pj_pool_calloc(pool, 1, sizeof(pj_atomic_t));
    if (!t) return PJ_ENOMEM;

    atomic_set(&t->atom, value);
    *ptr_var = t;
    
    return PJ_SUCCESS;
}

/* Util: initiate v4l2 streaming via mmap */
static pj_status_t vid4lin_stream_init_streaming(vid4lin_stream *stream)
{
    struct v4l2_requestbuffers req;
    unsigned i;
    pj_status_t status;

    pj_bzero(&req, sizeof(req));
    req.count = BUFFER_CNT;
    req.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
    req.memory = V4L2_MEMORY_MMAP;
    status = xioctl(stream->fd, VIDIOC_REQBUFS, &req);
    if (status != PJ_SUCCESS)
	return status;

    stream->buffers = pj_pool_calloc(stream->pool, req.count,
				     sizeof(*stream->buffers));
    stream->buf_cnt = 0;

    for (i = 0; i < req.count; ++i) {
	struct v4l2_buffer buf;

	pj_bzero(&buf, sizeof(buf));

	buf.type        = V4L2_BUF_TYPE_VIDEO_CAPTURE;
	buf.memory      = V4L2_MEMORY_MMAP;
	buf.index       = i;

	status = xioctl(stream->fd, VIDIOC_QUERYBUF, &buf);
	if (status != PJ_SUCCESS)
	    goto on_error;

	stream->buffers[i].length = buf.length;
	stream->buffers[i].start = v4l2_mmap(NULL, buf.length,
					     PROT_READ | PROT_WRITE,
					     MAP_SHARED, stream->fd,
					     buf.m.offset);

	if (MAP_FAILED == stream->buffers[i].start) {
	    status = pj_get_os_error();
	    goto on_error;
	}

	stream->buf_cnt++;
    }

    PJ_LOG(5,(THIS_FILE, "  mmap streaming initialized"));

    stream->io_type = IO_TYPE_MMAP;
    return PJ_SUCCESS;

on_error:
    return status;
}

PJ_DEF(pj_atomic_t*) pj_atomic_create( pj_pool_t *pool, long value)
{
    pj_atomic_t *t = pj_pool_calloc(pool, 1, sizeof(pj_atomic_t));
    if (!t)
	return NULL;
#if PJ_HAS_THREADS
    t->mutex = pj_mutex_create(pool, "atm%p", PJ_MUTEX_SIMPLE);
    if (t->mutex == NULL)
	return NULL;
#endif
    t->value = value;
    return t;
}

/*
 * Duplicate SSL socket parameter.
 */
PJ_DEF(void) pj_ssl_sock_param_copy( pj_pool_t *pool, 
				     pj_ssl_sock_param *dst,
				     const pj_ssl_sock_param *src)
{
    /* Init secure socket param */
    pj_memcpy(dst, src, sizeof(*dst));
    if (src->ciphers_num > 0) {
	unsigned i;
	dst->ciphers = (pj_ssl_cipher*)
			pj_pool_calloc(pool, src->ciphers_num, 
				       sizeof(pj_ssl_cipher));
	for (i = 0; i < src->ciphers_num; ++i)
	    dst->ciphers[i] = src->ciphers[i];
    }

    if (src->curves_num > 0) {
	unsigned i;
    	dst->curves = (pj_ssl_curve *)pj_pool_calloc(pool, src->curves_num,
					   	     sizeof(pj_ssl_curve));
	for (i = 0; i < src->curves_num; ++i)
	    dst->curves[i] = src->curves[i];
    }

    if (src->server_name.slen) {
        /* Server name must be null-terminated */
        pj_strdup_with_null(pool, &dst->server_name, &src->server_name);
    }

    if (src->sigalgs.slen) {
    	/* Sigalgs name must be null-terminated */
    	pj_strdup_with_null(pool, &dst->sigalgs, &src->sigalgs);
    }

    if (src->entropy_path.slen) {
    	/* Path name must be null-terminated */
    	pj_strdup_with_null(pool, &dst->entropy_path, &src->entropy_path);
    }
}

PJ_DEF(pj_thread_t*) pj_thread_create(pj_pool_t *pool, const char *thread_name,
				      pj_thread_proc *proc, void *arg,
				      pj_size_t stack_size, void *stack, 
				      unsigned flags)
{
    DWORD dwflags = 0;
    pj_thread_t *rec;

    /* Stack argument must be NULL on WIN32 */
    if (stack != NULL)
	return NULL;

    /* Set flags */
    if (flags & PJ_THREAD_SUSPENDED)
	dwflags |= CREATE_SUSPENDED;

    /* Create thread record and assign name for the thread */
    rec = (struct pj_thread_t*) pj_pool_calloc(pool, 1, sizeof(pj_thread_t));
    if (!rec) {
	return NULL;
    }
    /* Set name. */
    if (!thread_name) {
	thread_name = "thr%p";
    }
    if (strchr(thread_name, '%')) {
	pj_snprintf(rec->obj_name, PJ_MAX_OBJ_NAME, thread_name, rec);
    } else {
	strncpy(rec->obj_name, thread_name, PJ_MAX_OBJ_NAME);
	rec->obj_name[PJ_MAX_OBJ_NAME-1] = '\0';
    }

    PJ_LOG(6, (rec->obj_name, "Thread created"));

    /* Create the thread. */
    rec->proc = proc;
    rec->arg = arg;
    rec->hthread = CreateThread(NULL, stack_size, 
				thread_main, rec,
				dwflags, &rec->idthread);
    if (rec->hthread == NULL) {
	return NULL;
    }
    return rec;
}

PJ_DEF(pj_status_t) pj_activesock_start_read(pj_activesock_t *asock,
					     pj_pool_t *pool,
					     unsigned buff_size,
					     pj_uint32_t flags)
{
    void **readbuf;
    unsigned i;

    PJ_ASSERT_RETURN(asock && pool && buff_size, PJ_EINVAL);

    readbuf = (void**) pj_pool_calloc(pool, asock->async_count, 
				      sizeof(void*));

    for (i=0; i<asock->async_count; ++i) {
	readbuf[i] = pj_pool_alloc(pool, buff_size);
    }

    return pj_activesock_start_read2(asock, pool, buff_size, readbuf, flags);
}

Jt_Station::Jt_Station(jt_station_config_t *cfg)
{
	PJ_LOG(3, ("station.cpp", "Jt_Station: build a station. id: %d, name: %s", cfg->id, cfg->name.ptr));
	_pool = pj_pool_create(&g_cp.factory, cfg->name.ptr, INIT_POOL_STATION_SIZE, INC_POOL_STATION_SIZE, NULL);
	pj_strdup_with_null(_pool, &_name, &cfg->name);
	_id  = cfg->id;
	_fin = cfg->fin;
	_rtinfo = pj_hash_create(_pool, MAX_SIGNAL_KIND_COUNTS);
	jt_neighbour_config_t *nb = (jt_neighbour_config_t*)pj_pool_calloc(_pool, cfg->link_cnts, sizeof(jt_neighbour_config_t));
	for(pj_uint32_t i=0; i<cfg->link_cnts; i++)
	{
		nb[i].event  = cfg->link_cfg[i]->event;
		nb[i].stt_id = cfg->link_cfg[i]->stt_id;
		pj_hash_set(_pool, _rtinfo, &(nb[i].event), sizeof(pj_uint32_t), 0, &(nb[i]));
	}

	_car_tbl = pj_hash_create(_pool, MAX_CAR_COUNTS_PER_STATION);
	_ops_tbl = pj_hash_create(_pool, MAX_SIGNAL_KIND_COUNTS);
}

pjsip_messaging_create_session( pjsip_endpoint *endpt, const pj_str_t *param_from,
			        const pj_str_t *param_to )
{
    pj_pool_t *pool;
    pjsip_messaging_session *ses;
    pj_str_t tmp, to;

    pool = pjsip_endpt_create_pool(endpt, "imsess", 1024, 1024);
    if (!pool)
	return NULL;

    ses = pj_pool_calloc(pool, 1, sizeof(pjsip_messaging_session));
    ses->pool = pool;
    ses->endpt = endpt;

    ses->call_id = pjsip_cid_hdr_create(pool);
    pj_create_unique_string(pool, &ses->call_id->id);

    ses->cseq = pjsip_cseq_hdr_create(pool);
    ses->cseq->cseq = pj_rand();
    ses->cseq->method = message_method;

    ses->from = pjsip_from_hdr_create(pool);
    pj_strdup_with_null(pool, &tmp, param_from);
    ses->from->uri = pjsip_parse_uri(pool, tmp.ptr, tmp.slen, PJSIP_PARSE_URI_AS_NAMEADDR);
    if (ses->from->uri == NULL) {
	pjsip_endpt_destroy_pool(endpt, pool);
	return NULL;
    }
    pj_create_unique_string(pool, &ses->from->tag);

    ses->to = pjsip_to_hdr_create(pool);
    pj_strdup_with_null(pool, &to, param_from);
    ses->to->uri = pjsip_parse_uri(pool, to.ptr, to.slen, PJSIP_PARSE_URI_AS_NAMEADDR);
    if (ses->to->uri == NULL) {
	pjsip_endpt_destroy_pool(endpt, pool);
	return NULL;
    }

    PJ_LOG(4,(THIS_FILE, "IM session created: recipient=%s", to.ptr));
    return ses;
}

/* Set local peer address */
PJ_DEF(void) pj_tcp_session_set_local_addr( pj_tcp_session *sess,
        const pj_sockaddr_t *addr)
{
    char buf[PJ_INET6_ADDRSTRLEN+20];

    if (!sess)
        return;

    if (!sess->local_addr) {
        sess->local_addr = (pj_sockaddr_t *)
                           pj_pool_calloc(sess->pool, 1,
                                          pj_sockaddr_get_len(addr));
    }
    sess->local_addr_len = pj_sockaddr_get_len(addr);
    pj_sockaddr_cp(sess->local_addr, addr);

    //pj_sockaddr_set_str_addr(pj_AF_INET(), (pj_sockaddr *)sess->peer_addr, &str_addr);

    PJ_LOG(4, (THIS_FILE, "pj_tcp_session_set_remote_peer_addr() %s",
               pj_sockaddr_print(sess->local_addr, buf, sizeof(buf), 3)));
}

pjsip_messaging_send_msg( pjsip_endpoint *endpt, pjsip_tx_data *tdata, 
			  void *token, pjsip_messaging_cb cb )
{
    pjsip_transaction *tsx;
    struct messaging_data *msg_data;

    /* Create transaction. */
    tsx = pjsip_endpt_create_tsx(endpt);
    if (!tsx) {
	pjsip_tx_data_dec_ref(tdata);
	return -1;
    }

    /* Save parameters to messaging data and attach to tsx. */
    msg_data = pj_pool_calloc(tsx->pool, 1, sizeof(struct messaging_data));
    msg_data->cb = cb;
    msg_data->token = token;

    /* Init transaction. */
    tsx->module_data[module_id] = msg_data;
    if (pjsip_tsx_init_uac(tsx, tdata) != 0) {
	pjsip_tx_data_dec_ref(tdata);
	pjsip_endpt_destroy_tsx(endpt, tsx);
	return -1;
    }

    pjsip_endpt_register_tsx(endpt, tsx);

    /* 
     * Instruct transaction to send message.
     * Further events will be received via transaction's event.
     */
    pjsip_tsx_on_tx_msg(tsx, tdata);

    /* Decrement reference counter. */
    pjsip_tx_data_dec_ref(tdata);
    return 0;
}

PJ_DEF(pj_status_t) pj_stun_create_bind_req( pj_pool_t *pool, 
					     void **msg, pj_size_t *len,
					     pj_uint32_t id_hi, 
					     pj_uint32_t id_lo)
{
    pj_stun_msg_hdr *hdr;
    
    PJ_LOG(5,(THIS_FILE, "pj_stun_create_bind_req"));

    hdr = pj_pool_calloc(pool, 1, sizeof(pj_stun_msg_hdr));
    if (!hdr) {
	PJ_LOG(5,(THIS_FILE, "Error allocating memory!"));
	return -1;
    }

    hdr->type = pj_htons(PJ_STUN_BINDING_REQUEST);
    hdr->tsx[2] = pj_htonl(id_hi);
    hdr->tsx[3] = pj_htonl(id_lo);
    *msg = hdr;
    *len = sizeof(pj_stun_msg_hdr);

    return 0;
}