diff options
author | Xiaohong Bao <bao@lindenlab.com> | 2011-12-15 21:39:48 -0700 |
---|---|---|
committer | Xiaohong Bao <bao@lindenlab.com> | 2011-12-15 21:39:48 -0700 |
commit | efec138037d7271effd89536d824bec270985909 (patch) | |
tree | 57c0f5165fcdb4d428bba8ab4cef6dcc401b7ece /indra/llmessage/llcurl.cpp | |
parent | 16b6a472477bd389771fe4022e425f77ca85c2bd (diff) |
fix for SH-2738 and SH-2777, might also help SH-2723: heap corruption
SH-2738: Texture fetching freezes due to LLcurl
SH-2777: viewer crashed on logout in LLCurl::Easy::releaseEasyHandle
Diffstat (limited to 'indra/llmessage/llcurl.cpp')
-rw-r--r-- | indra/llmessage/llcurl.cpp | 63 |
1 files changed, 38 insertions, 25 deletions
diff --git a/indra/llmessage/llcurl.cpp b/indra/llmessage/llcurl.cpp index 7ca25d07fc..d86bf7a0a1 100644 --- a/indra/llmessage/llcurl.cpp +++ b/indra/llmessage/llcurl.cpp @@ -219,11 +219,15 @@ namespace boost std::set<CURL*> LLCurl::Easy::sFreeHandles; std::set<CURL*> LLCurl::Easy::sActiveHandles; +LLMutex* LLCurl::Easy::sHandleMutexp = NULL ; //static CURL* LLCurl::Easy::allocEasyHandle() { CURL* ret = NULL; + + LLMutexLock lock(sHandleMutexp) ; + if (sFreeHandles.empty()) { ret = curl_easy_init(); @@ -251,6 +255,7 @@ void LLCurl::Easy::releaseEasyHandle(CURL* handle) llerrs << "handle cannot be NULL!" << llendl; } + LLMutexLock lock(sHandleMutexp) ; if (sActiveHandles.find(handle) != sActiveHandles.end()) { sActiveHandles.erase(handle); @@ -519,7 +524,8 @@ LLCurl::Multi::Multi() mState(STATE_READY), mDead(FALSE), mMutexp(NULL), - mDeletionMutexp(NULL) + mDeletionMutexp(NULL), + mEasyMutexp(NULL) { mCurlMultiHandle = curl_multi_init(); if (!mCurlMultiHandle) @@ -534,6 +540,7 @@ LLCurl::Multi::Multi() { mMutexp = new LLMutex(NULL) ; mDeletionMutexp = new LLMutex(NULL) ; + mEasyMutexp = new LLMutex(NULL) ; } LLCurl::getCurlThread()->addMulti(this) ; @@ -563,6 +570,8 @@ LLCurl::Multi::~Multi() mMutexp = NULL ; delete mDeletionMutexp ; mDeletionMutexp = NULL ; + delete mEasyMutexp ; + mEasyMutexp = NULL ; --gCurlMultiCount; } @@ -585,17 +594,9 @@ void LLCurl::Multi::unlock() void LLCurl::Multi::markDead() { - if(mDeletionMutexp) - { - mDeletionMutexp->lock() ; - } - + LLMutexLock lock(mDeletionMutexp) ; + mDead = TRUE ; - - if(mDeletionMutexp) - { - mDeletionMutexp->unlock() ; - } } void LLCurl::Multi::setState(LLCurl::Multi::ePerformState state) @@ -655,10 +656,8 @@ CURLMsg* LLCurl::Multi::info_read(S32* msgs_in_queue) //return true if dead bool LLCurl::Multi::doPerform() { - if(mDeletionMutexp) - { - mDeletionMutexp->lock() ; - } + LLMutexLock lock(mDeletionMutexp) ; + bool dead = mDead ; if(mDead) @@ -675,6 +674,7 @@ bool LLCurl::Multi::doPerform() call_count < MULTI_PERFORM_CALL_REPEAT; call_count++) { + LLMutexLock lock(mMutexp) ; CURLMcode code = curl_multi_perform(mCurlMultiHandle, &q); if (CURLM_CALL_MULTI_PERFORM != code || q == 0) { @@ -688,11 +688,6 @@ bool LLCurl::Multi::doPerform() setState(STATE_COMPLETED) ; } - if(mDeletionMutexp) - { - mDeletionMutexp->unlock() ; - } - return dead ; } @@ -743,19 +738,21 @@ S32 LLCurl::Multi::process() LLCurl::Easy* LLCurl::Multi::allocEasy() { - Easy* easy = 0; + Easy* easy = 0; if (mEasyFreeList.empty()) - { + { easy = Easy::getEasy(); } else { + LLMutexLock lock(mEasyMutexp) ; easy = *(mEasyFreeList.begin()); mEasyFreeList.erase(easy); } if (easy) { + LLMutexLock lock(mEasyMutexp) ; mEasyActiveList.insert(easy); mEasyActiveMap[easy->getCurlHandle()] = easy; } @@ -764,6 +761,7 @@ LLCurl::Easy* LLCurl::Multi::allocEasy() bool LLCurl::Multi::addEasy(Easy* easy) { + LLMutexLock lock(mMutexp) ; CURLMcode mcode = curl_multi_add_handle(mCurlMultiHandle, easy->getCurlHandle()); check_curl_multi_code(mcode); //if (mcode != CURLM_OK) @@ -776,22 +774,30 @@ bool LLCurl::Multi::addEasy(Easy* easy) void LLCurl::Multi::easyFree(Easy* easy) { + mEasyMutexp->lock() ; mEasyActiveList.erase(easy); mEasyActiveMap.erase(easy->getCurlHandle()); + if (mEasyFreeList.size() < EASY_HANDLE_POOL_SIZE) - { - easy->resetState(); + { mEasyFreeList.insert(easy); + mEasyMutexp->unlock() ; + + easy->resetState(); } else { + mEasyMutexp->unlock() ; delete easy; } } void LLCurl::Multi::removeEasy(Easy* easy) { - check_curl_multi_code(curl_multi_remove_handle(mCurlMultiHandle, easy->getCurlHandle())); + { + LLMutexLock lock(mMutexp) ; + check_curl_multi_code(curl_multi_remove_handle(mCurlMultiHandle, easy->getCurlHandle())); + } easyFree(easy); } @@ -1290,6 +1296,10 @@ void LLCurl::initClass(bool multi_threaded) #endif sCurlThread = new LLCurlThread(multi_threaded) ; + if(multi_threaded) + { + Easy::sHandleMutexp = new LLMutex(NULL) ; + } } void LLCurl::cleanupClass() @@ -1319,6 +1329,9 @@ void LLCurl::cleanupClass() Easy::sFreeHandles.clear(); + delete Easy::sHandleMutexp ; + Easy::sHandleMutexp = NULL ; + llassert(Easy::sActiveHandles.empty()); } |