From d238341afaecedfe227141126c4c35dcde4a0671 Mon Sep 17 00:00:00 2001 From: Monty Brandenberg Date: Mon, 16 Jul 2012 11:53:04 -0400 Subject: SH-3189 Remove/improve naive data structures When releasing HTTP waiters, avoid unnecessary sort activity. For Content-Type in responses, let libcurl do the work and removed my parsing of headers. Drop Content-Encoding as libcurl will deal with that. If anyone is interested, they can parse. --- indra/newview/lltexturefetch.cpp | 22 ++++++++++++++++++---- 1 file changed, 18 insertions(+), 4 deletions(-) (limited to 'indra/newview/lltexturefetch.cpp') diff --git a/indra/newview/lltexturefetch.cpp b/indra/newview/lltexturefetch.cpp index 8314031f14..225ea46558 100755 --- a/indra/newview/lltexturefetch.cpp +++ b/indra/newview/lltexturefetch.cpp @@ -3342,6 +3342,17 @@ void LLTextureFetch::removeHttpWaiter(const LLUUID & tid) mNetworkQueueMutex.unlock(); // -Mfnq } +// Release as many requests as permitted from the WAIT_HTTP_RESOURCE2 +// state to the SEND_HTTP_REQ state based on their current priority. +// +// This data structures and code associated with this looks a bit +// indirect and naive but it's done in the name of safety. An +// ordered container may become invalid from time to time due to +// priority changes caused by actions in other threads. State itself +// could also suffer the same fate with canceled operations. Even +// done this way, I'm not fully trusting we're truly safe. This +// module is due for a major refactoring and we'll deal with it then. +// // Threads: Ttf // Locks: -Mw (must not hold any worker when called) void LLTextureFetch::releaseHttpWaiters() @@ -3384,12 +3395,15 @@ void LLTextureFetch::releaseHttpWaiters() tids2.push_back(worker); } } - - // Sort into priority order - LLTextureFetchWorker::Compare compare; - std::sort(tids2.begin(), tids2.end(), compare); tids.clear(); + // Sort into priority order, if necessary and only as much as needed + if (tids2.size() > mHttpSemaphore) + { + LLTextureFetchWorker::Compare compare; + std::partial_sort(tids2.begin(), tids2.begin() + mHttpSemaphore, tids2.end(), compare); + } + // Release workers up to the high water mark. Since we aren't // holding any locks at this point, we can be in competition // with other callers. Do defensive things like getting -- cgit v1.2.3