static ngx_int_t
ngx_http_push_stream_send_response_all_channels_info_detailed(ngx_http_request_t *r, ngx_str_t *prefix)
{
ngx_http_push_stream_main_conf_t *mcf = ngx_http_get_module_main_conf(r, ngx_http_push_stream_module);
ngx_queue_t queue_channel_info;
ngx_http_push_stream_shm_data_t *data = mcf->shm_data;
ngx_queue_t *q;
ngx_http_push_stream_channel_t *channel;
ngx_queue_init(&queue_channel_info);
ngx_shmtx_lock(&data->channels_queue_mutex);
for (q = ngx_queue_head(&data->channels_queue); q != ngx_queue_sentinel(&data->channels_queue); q = ngx_queue_next(q)) {
channel = ngx_queue_data(q, ngx_http_push_stream_channel_t, queue);
ngx_http_push_stream_channel_info_t *channel_info;
if(!prefix || (ngx_strncmp(channel->id.data, prefix->data, prefix->len) == 0)) {
if ((channel_info = ngx_pcalloc(r->pool, sizeof(ngx_http_push_stream_channel_info_t))) != NULL) {
channel_info->id.data = channel->id.data;
channel_info->id.len = channel->id.len;
channel_info->published_messages = channel->last_message_id;
channel_info->stored_messages = channel->stored_messages;
channel_info->subscribers = channel->subscribers;
ngx_queue_insert_tail(&queue_channel_info, &channel_info->queue);
}
}
}
ngx_shmtx_unlock(&data->channels_queue_mutex);
return ngx_http_push_stream_send_response_channels_info(r, &queue_channel_info);
}
static ngx_int_t
ngx_http_push_stream_send_response_channels_info_detailed(ngx_http_request_t *r, ngx_http_push_stream_requested_channel_t *requested_channels) {
ngx_str_t *text;
ngx_queue_t queue_channel_info;
ngx_http_push_stream_main_conf_t *mcf = ngx_http_get_module_main_conf(r, ngx_http_push_stream_module);
ngx_slab_pool_t *shpool = mcf->shpool;
ngx_http_push_stream_content_subtype_t *subtype = ngx_http_push_stream_match_channel_info_format_and_content_type(r, 1);
ngx_http_push_stream_channel_info_t *channel_info;
ngx_http_push_stream_channel_t *channel = NULL;
ngx_http_push_stream_requested_channel_t *requested_channel;
ngx_queue_t *cur = &requested_channels->queue;
ngx_uint_t qtd_channels = 0;
ngx_queue_init(&queue_channel_info);
ngx_shmtx_lock(&shpool->mutex);
while ((cur = ngx_queue_next(cur)) != &requested_channels->queue) {
requested_channel = ngx_queue_data(cur, ngx_http_push_stream_requested_channel_t, queue);
// search for a existing channel with this id
channel = ngx_http_push_stream_find_channel(requested_channel->id, r->connection->log, mcf);
if ((channel != NULL) && ((channel_info = ngx_pcalloc(r->pool, sizeof(ngx_http_push_stream_channel_info_t))) != NULL)) {
channel_info->id.data = channel->id.data;
channel_info->id.len = channel->id.len;
channel_info->published_messages = channel->last_message_id;
channel_info->stored_messages = channel->stored_messages;
channel_info->subscribers = channel->subscribers;
ngx_queue_insert_tail(&queue_channel_info, &channel_info->queue);
qtd_channels++;
}
}
ngx_shmtx_unlock(&shpool->mutex);
if (qtd_channels == 0) {
return ngx_http_push_stream_send_only_header_response(r, NGX_HTTP_NOT_FOUND, NULL);
}
if (qtd_channels == 1) {
channel_info = ngx_queue_data(ngx_queue_head(&queue_channel_info), ngx_http_push_stream_channel_info_t, queue);
text = ngx_http_push_stream_channel_info_formatted(r->pool, subtype->format_item, &channel_info->id, channel_info->published_messages, channel_info->stored_messages, channel_info->subscribers);
if (text == NULL) {
ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, "Failed to allocate response buffer.");
return NGX_HTTP_INTERNAL_SERVER_ERROR;
}
return ngx_http_push_stream_send_response(r, text, subtype->content_type, NGX_HTTP_OK);
}
return ngx_http_push_stream_send_response_channels_info(r, &queue_channel_info);
}
static ngx_int_t
ngx_http_push_stream_send_response_channels_info_detailed(ngx_http_request_t *r, ngx_http_push_stream_requested_channel_t *requested_channels) {
ngx_str_t *text;
ngx_queue_t queue_channel_info;
ngx_http_push_stream_content_subtype_t *subtype = ngx_http_push_stream_match_channel_info_format_and_content_type(r, 1);
ngx_http_push_stream_channel_info_t *channel_info;
ngx_http_push_stream_requested_channel_t *requested_channel;
ngx_queue_t *q;
ngx_uint_t qtd_channels = 0;
ngx_queue_init(&queue_channel_info);
for (q = ngx_queue_head(&requested_channels->queue); q != ngx_queue_sentinel(&requested_channels->queue); q = ngx_queue_next(q)) {
requested_channel = ngx_queue_data(q, ngx_http_push_stream_requested_channel_t, queue);
if ((requested_channel->channel != NULL) && ((channel_info = ngx_pcalloc(r->pool, sizeof(ngx_http_push_stream_channel_info_t))) != NULL)) {
channel_info->id.data = requested_channel->channel->id.data;
channel_info->id.len = requested_channel->channel->id.len;
channel_info->published_messages = requested_channel->channel->last_message_id;
channel_info->stored_messages = requested_channel->channel->stored_messages;
channel_info->subscribers = requested_channel->channel->subscribers;
ngx_queue_insert_tail(&queue_channel_info, &channel_info->queue);
qtd_channels++;
}
}
if (qtd_channels == 0) {
return ngx_http_push_stream_send_only_header_response(r, NGX_HTTP_NOT_FOUND, NULL);
}
if (qtd_channels == 1) {
channel_info = ngx_queue_data(ngx_queue_head(&queue_channel_info), ngx_http_push_stream_channel_info_t, queue);
text = ngx_http_push_stream_channel_info_formatted(r->pool, subtype->format_item, &channel_info->id, channel_info->published_messages, channel_info->stored_messages, channel_info->subscribers);
if (text == NULL) {
ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, "Failed to allocate response buffer.");
return NGX_HTTP_INTERNAL_SERVER_ERROR;
}
return ngx_http_push_stream_send_response(r, text, subtype->content_type, NGX_HTTP_OK);
}
return ngx_http_push_stream_send_response_channels_info(r, &queue_channel_info);
}
