diff options
Diffstat (limited to 'indra/llcorehttp/_httpretryqueue.h')
-rwxr-xr-x | indra/llcorehttp/_httpretryqueue.h | 94 |
1 files changed, 94 insertions, 0 deletions
diff --git a/indra/llcorehttp/_httpretryqueue.h b/indra/llcorehttp/_httpretryqueue.h new file mode 100755 index 0000000000..745adec09d --- /dev/null +++ b/indra/llcorehttp/_httpretryqueue.h @@ -0,0 +1,94 @@ +/** + * @file _httpretryqueue.h + * @brief Internal declaration for the operation retry queue + * + * $LicenseInfo:firstyear=2012&license=viewerlgpl$ + * Second Life Viewer Source Code + * Copyright (C) 2012, Linden Research, Inc. + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; + * version 2.1 of the License only. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + * + * Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA + * $/LicenseInfo$ + */ + +#ifndef _LLCORE_HTTP_RETRY_QUEUE_H_ +#define _LLCORE_HTTP_RETRY_QUEUE_H_ + + +#include <queue> + +#include "_httpoprequest.h" + + +namespace LLCore +{ + +/// HttpRetryQueue provides a simple priority queue for HttpOpRequest objects. +/// +/// This uses the priority_queue adaptor class to provide the queue +/// as well as the ordering scheme while allowing us access to the +/// raw container if we follow a few simple rules. One of the more +/// important of those rules is that any iterator becomes invalid +/// on element erasure. So pay attention. +/// +/// Threading: not thread-safe. Expected to be used entirely by +/// a single thread, typically a worker thread of some sort. + +struct HttpOpRetryCompare +{ + bool operator()(const HttpOpRequest * lhs, const HttpOpRequest * rhs) + { + return lhs->mPolicyRetryAt < rhs->mPolicyRetryAt; + } +}; + + +typedef std::priority_queue<HttpOpRequest *, + std::deque<HttpOpRequest *>, + LLCore::HttpOpRetryCompare> HttpRetryQueueBase; + +class HttpRetryQueue : public HttpRetryQueueBase +{ +public: + HttpRetryQueue() + : HttpRetryQueueBase() + {} + + ~HttpRetryQueue() + {} + +protected: + HttpRetryQueue(const HttpRetryQueue &); // Not defined + void operator=(const HttpRetryQueue &); // Not defined + +public: + const container_type & get_container() const + { + return c; + } + + container_type & get_container() + { + return c; + } + +}; // end class HttpRetryQueue + + +} // end namespace LLCore + + +#endif // _LLCORE_HTTP_RETRY_QUEUE_H_ |