Function get_active_slot

http.c:1575–1661

}

struct active_request_slot *get_active_slot(void)
{
	struct active_request_slot *slot = active_queue_head;
	struct active_request_slot *newslot;

	int num_transfers;

	/* Wait for a slot to open up if the queue is full */
	while (active_requests >= max_requests) {
		curl_multi_perform(curlm, &num_transfers);
		if (num_transfers < active_requests)
			process_curl_messages();
	}

	while (slot != NULL && slot->in_use)
		slot = slot->next;

	if (!slot) {
		newslot = xmalloc(sizeof(*newslot));
		newslot->curl = NULL;
		newslot->in_use = 0;
		newslot->next = NULL;

		slot = active_queue_head;
		if (!slot) {
			active_queue_head = newslot;
		} else {
			while (slot->next != NULL)
				slot = slot->next;
			slot->next = newslot;
		}
		slot = newslot;
	}

	if (!slot->curl) {
		slot->curl = curl_easy_duphandle(curl_default);
		curl_session_count++;
	}

	active_requests++;
	slot->in_use = 1;
	slot->results = NULL;
	slot->finished = NULL;
	slot->callback_data = NULL;
	slot->callback_func = NULL;

	if (curl_cookie_file && !strcmp(curl_cookie_file, "-")) {
		warning(_("refusing to read cookies from http.cookiefile '-'"));
		FREE_AND_NULL(curl_cookie_file);
	}
	curl_easy_setopt(slot->curl, CURLOPT_COOKIEFILE, curl_cookie_file);
	if (curl_save_cookies && (!curl_cookie_file || !curl_cookie_file[0])) {
		curl_save_cookies = 0;
		warning(_("ignoring http.savecookies for empty http.cookiefile"));
	}
	if (curl_save_cookies)
		curl_easy_setopt(slot->curl, CURLOPT_COOKIEJAR, curl_cookie_file);
	curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, pragma_header);