diff options
Diffstat (limited to 'indra/llmessage')
| -rw-r--r-- | indra/llmessage/llbuffer.cpp | 90 | ||||
| -rw-r--r-- | indra/llmessage/llbuffer.h | 25 | ||||
| -rw-r--r-- | indra/llmessage/llbufferstream.cpp | 8 | ||||
| -rw-r--r-- | indra/llmessage/llcurl.cpp | 310 | ||||
| -rw-r--r-- | indra/llmessage/llcurl.h | 23 | ||||
| -rw-r--r-- | indra/llmessage/llhttpassetstorage.cpp | 10 | ||||
| -rw-r--r-- | indra/llmessage/llhttpclient.cpp | 12 | ||||
| -rw-r--r-- | indra/llmessage/lliohttpserver.cpp | 4 | ||||
| -rw-r--r-- | indra/llmessage/lliopipe.cpp | 6 | ||||
| -rw-r--r-- | indra/llmessage/lliopipe.h | 2 | ||||
| -rw-r--r-- | indra/llmessage/lliosocket.cpp | 3 | ||||
| -rw-r--r-- | indra/llmessage/llpumpio.cpp | 51 | ||||
| -rw-r--r-- | indra/llmessage/llpumpio.h | 13 | ||||
| -rw-r--r-- | indra/llmessage/llsdrpcclient.h | 22 | ||||
| -rw-r--r-- | indra/llmessage/llurlrequest.cpp | 24 | ||||
| -rw-r--r-- | indra/llmessage/llurlrequest.h | 2 |
16 files changed, 519 insertions, 86 deletions
diff --git a/indra/llmessage/llbuffer.cpp b/indra/llmessage/llbuffer.cpp index 0316797f00..250cace6e9 100644 --- a/indra/llmessage/llbuffer.cpp +++ b/indra/llmessage/llbuffer.cpp @@ -32,6 +32,9 @@ #include "llmath.h" #include "llmemtype.h" #include "llstl.h" +#include "llthread.h" + +#define ASSERT_LLBUFFERARRAY_MUTEX_LOCKED llassert(!mMutexp || mMutexp->isSelfLocked()); /** * LLSegment @@ -224,7 +227,8 @@ void LLHeapBuffer::allocate(S32 size) * LLBufferArray */ LLBufferArray::LLBufferArray() : - mNextBaseChannel(0) + mNextBaseChannel(0), + mMutexp(NULL) { LLMemType m1(LLMemType::MTYPE_IO_BUFFER); } @@ -233,6 +237,8 @@ LLBufferArray::~LLBufferArray() { LLMemType m1(LLMemType::MTYPE_IO_BUFFER); std::for_each(mBuffers.begin(), mBuffers.end(), DeletePointer()); + + delete mMutexp; } // static @@ -243,14 +249,57 @@ LLChannelDescriptors LLBufferArray::makeChannelConsumer( return rv; } +void LLBufferArray::lock() +{ + if(mMutexp) + { + mMutexp->lock() ; + } +} + +void LLBufferArray::unlock() +{ + if(mMutexp) + { + mMutexp->unlock() ; + } +} + +LLMutex* LLBufferArray::getMutex() +{ + return mMutexp ; +} + +void LLBufferArray::setThreaded(bool threaded) +{ + if(threaded) + { + if(!mMutexp) + { + mMutexp = new LLMutex(NULL); + } + } + else + { + if(mMutexp) + { + delete mMutexp ; + mMutexp = NULL ; + } + } +} + LLChannelDescriptors LLBufferArray::nextChannel() { LLChannelDescriptors rv(mNextBaseChannel++); return rv; } +//mMutexp should be locked before calling this. S32 LLBufferArray::capacity() const { + ASSERT_LLBUFFERARRAY_MUTEX_LOCKED + S32 total = 0; const_buffer_iterator_t iter = mBuffers.begin(); const_buffer_iterator_t end = mBuffers.end(); @@ -263,6 +312,8 @@ S32 LLBufferArray::capacity() const bool LLBufferArray::append(S32 channel, const U8* src, S32 len) { + LLMutexLock lock(mMutexp) ; + LLMemType m1(LLMemType::MTYPE_IO_BUFFER); std::vector<LLSegment> segments; if(copyIntoBuffers(channel, src, len, segments)) @@ -273,8 +324,11 @@ bool LLBufferArray::append(S32 channel, const U8* src, S32 len) return false; } +//mMutexp should be locked before calling this. bool LLBufferArray::prepend(S32 channel, const U8* src, S32 len) { + ASSERT_LLBUFFERARRAY_MUTEX_LOCKED + LLMemType m1(LLMemType::MTYPE_IO_BUFFER); std::vector<LLSegment> segments; if(copyIntoBuffers(channel, src, len, segments)) @@ -293,6 +347,8 @@ bool LLBufferArray::insertAfter( { LLMemType m1(LLMemType::MTYPE_IO_BUFFER); std::vector<LLSegment> segments; + + LLMutexLock lock(mMutexp) ; if(mSegments.end() != segment) { ++segment; @@ -305,8 +361,11 @@ bool LLBufferArray::insertAfter( return false; } +//mMutexp should be locked before calling this. LLBufferArray::segment_iterator_t LLBufferArray::splitAfter(U8* address) { + ASSERT_LLBUFFERARRAY_MUTEX_LOCKED + LLMemType m1(LLMemType::MTYPE_IO_BUFFER); segment_iterator_t end = mSegments.end(); segment_iterator_t it = getSegment(address); @@ -335,20 +394,26 @@ LLBufferArray::segment_iterator_t LLBufferArray::splitAfter(U8* address) return rv; } +//mMutexp should be locked before calling this. LLBufferArray::segment_iterator_t LLBufferArray::beginSegment() { + ASSERT_LLBUFFERARRAY_MUTEX_LOCKED return mSegments.begin(); } +//mMutexp should be locked before calling this. LLBufferArray::segment_iterator_t LLBufferArray::endSegment() { + ASSERT_LLBUFFERARRAY_MUTEX_LOCKED return mSegments.end(); } +//mMutexp should be locked before calling this. LLBufferArray::segment_iterator_t LLBufferArray::constructSegmentAfter( U8* address, LLSegment& segment) { + ASSERT_LLBUFFERARRAY_MUTEX_LOCKED LLMemType m1(LLMemType::MTYPE_IO_BUFFER); segment_iterator_t rv = mSegments.begin(); segment_iterator_t end = mSegments.end(); @@ -395,8 +460,10 @@ LLBufferArray::segment_iterator_t LLBufferArray::constructSegmentAfter( return rv; } +//mMutexp should be locked before calling this. LLBufferArray::segment_iterator_t LLBufferArray::getSegment(U8* address) { + ASSERT_LLBUFFERARRAY_MUTEX_LOCKED segment_iterator_t end = mSegments.end(); if(!address) { @@ -414,9 +481,11 @@ LLBufferArray::segment_iterator_t LLBufferArray::getSegment(U8* address) return end; } +//mMutexp should be locked before calling this. LLBufferArray::const_segment_iterator_t LLBufferArray::getSegment( U8* address) const { + ASSERT_LLBUFFERARRAY_MUTEX_LOCKED const_segment_iterator_t end = mSegments.end(); if(!address) { @@ -466,6 +535,8 @@ S32 LLBufferArray::countAfter(S32 channel, U8* start) const S32 count = 0; S32 offset = 0; const_segment_iterator_t it; + + LLMutexLock lock(mMutexp) ; const_segment_iterator_t end = mSegments.end(); if(start) { @@ -517,6 +588,8 @@ U8* LLBufferArray::readAfter( len = 0; S32 bytes_to_copy = 0; const_segment_iterator_t it; + + LLMutexLock lock(mMutexp) ; const_segment_iterator_t end = mSegments.end(); if(start) { @@ -568,6 +641,7 @@ U8* LLBufferArray::seek( U8* start, S32 delta) const { + ASSERT_LLBUFFERARRAY_MUTEX_LOCKED LLMemType m1(LLMemType::MTYPE_IO_BUFFER); const_segment_iterator_t it; const_segment_iterator_t end = mSegments.end(); @@ -709,9 +783,14 @@ U8* LLBufferArray::seek( return rv; } +//test use only bool LLBufferArray::takeContents(LLBufferArray& source) { LLMemType m1(LLMemType::MTYPE_IO_BUFFER); + + LLMutexLock lock(mMutexp); + source.lock(); + std::copy( source.mBuffers.begin(), source.mBuffers.end(), @@ -723,13 +802,17 @@ bool LLBufferArray::takeContents(LLBufferArray& source) std::back_insert_iterator<segment_list_t>(mSegments)); source.mSegments.clear(); source.mNextBaseChannel = 0; + source.unlock(); + return true; } +//mMutexp should be locked before calling this. LLBufferArray::segment_iterator_t LLBufferArray::makeSegment( S32 channel, S32 len) { + ASSERT_LLBUFFERARRAY_MUTEX_LOCKED LLMemType m1(LLMemType::MTYPE_IO_BUFFER); // start at the end of the buffers, because it is the most likely // to have free space. @@ -765,8 +848,10 @@ LLBufferArray::segment_iterator_t LLBufferArray::makeSegment( return send; } +//mMutexp should be locked before calling this. bool LLBufferArray::eraseSegment(const segment_iterator_t& erase_iter) { + ASSERT_LLBUFFERARRAY_MUTEX_LOCKED LLMemType m1(LLMemType::MTYPE_IO_BUFFER); // Find out which buffer contains the segment, and if it is found, @@ -792,13 +877,14 @@ bool LLBufferArray::eraseSegment(const segment_iterator_t& erase_iter) return rv; } - +//mMutexp should be locked before calling this. bool LLBufferArray::copyIntoBuffers( S32 channel, const U8* src, S32 len, std::vector<LLSegment>& segments) { + ASSERT_LLBUFFERARRAY_MUTEX_LOCKED LLMemType m1(LLMemType::MTYPE_IO_BUFFER); if(!src || !len) return false; S32 copied = 0; diff --git a/indra/llmessage/llbuffer.h b/indra/llmessage/llbuffer.h index 1c42b6fbc6..ccdb9fa7ee 100644 --- a/indra/llmessage/llbuffer.h +++ b/indra/llmessage/llbuffer.h @@ -39,6 +39,7 @@ #include <list> #include <vector> +class LLMutex; /** * @class LLChannelDescriptors * @brief A way simple interface to accesss channels inside a buffer @@ -564,6 +565,29 @@ public: * @return Returns true on success. */ bool eraseSegment(const segment_iterator_t& iter); + + /** + * @brief Lock the mutex if it exists + * This method locks mMutexp to make accessing LLBufferArray thread-safe + */ + void lock(); + + /** + * @brief Unlock the mutex if it exists + */ + void unlock(); + + /** + * @brief Return mMutexp + */ + LLMutex* getMutex(); + + /** + * @brief Set LLBufferArray to be shared across threads or not + * This method is to create mMutexp if is threaded. + * @param threaded Indicates this LLBufferArray instance is shared across threads if true. + */ + void setThreaded(bool threaded); //@} protected: @@ -595,6 +619,7 @@ protected: S32 mNextBaseChannel; buffer_list_t mBuffers; segment_list_t mSegments; + LLMutex* mMutexp; }; #endif // LL_LLBUFFER_H diff --git a/indra/llmessage/llbufferstream.cpp b/indra/llmessage/llbufferstream.cpp index 6257983c43..8d8ad05ad5 100644 --- a/indra/llmessage/llbufferstream.cpp +++ b/indra/llmessage/llbufferstream.cpp @@ -31,6 +31,7 @@ #include "llbuffer.h" #include "llmemtype.h" +#include "llthread.h" static const S32 DEFAULT_OUTPUT_SEGMENT_SIZE = 1024 * 4; @@ -62,6 +63,7 @@ int LLBufferStreamBuf::underflow() return EOF; } + LLMutexLock lock(mBuffer->getMutex()); LLBufferArray::segment_iterator_t iter; LLBufferArray::segment_iterator_t end = mBuffer->endSegment(); U8* last_pos = (U8*)gptr(); @@ -149,6 +151,7 @@ int LLBufferStreamBuf::overflow(int c) // since we got here, we have a buffer, and we have a character to // put on it. LLBufferArray::segment_iterator_t it; + LLMutexLock lock(mBuffer->getMutex()); it = mBuffer->makeSegment(mChannels.out(), DEFAULT_OUTPUT_SEGMENT_SIZE); if(it != mBuffer->endSegment()) { @@ -210,6 +213,7 @@ int LLBufferStreamBuf::sync() // *NOTE: I bet we could just --address if address is not NULL. // Need to think about that. + LLMutexLock lock(mBuffer->getMutex()); address = mBuffer->seek(mChannels.out(), address, -1); if(address) { @@ -273,6 +277,8 @@ streampos LLBufferStreamBuf::seekoff( // NULL is fine break; } + + LLMutexLock lock(mBuffer->getMutex()); address = mBuffer->seek(mChannels.in(), base_addr, off); if(address) { @@ -304,6 +310,8 @@ streampos LLBufferStreamBuf::seekoff( // NULL is fine break; } + + LLMutexLock lock(mBuffer->getMutex()); address = mBuffer->seek(mChannels.out(), base_addr, off); if(address) { diff --git a/indra/llmessage/llcurl.cpp b/indra/llmessage/llcurl.cpp index e17380fdf5..1ab82a273b 100644 --- a/indra/llmessage/llcurl.cpp +++ b/indra/llmessage/llcurl.cpp @@ -72,10 +72,12 @@ static const U32 EASY_HANDLE_POOL_SIZE = 5; static const S32 MULTI_PERFORM_CALL_REPEAT = 5; -static const S32 CURL_REQUEST_TIMEOUT = 30; // seconds +static const S32 CURL_REQUEST_TIMEOUT = 30; // seconds per operation static const S32 MAX_ACTIVE_REQUEST_COUNT = 100; -static +static const F32 DEFAULT_MULTI_IDLE_TIME = 120.0f ; //seconds +static const S32 MAX_NUM_OF_HANDLES = 256 ; //max number of handles, (multi handles and easy handles combined). + // DEBUG // S32 gCurlEasyCount = 0; S32 gCurlMultiCount = 0; @@ -87,6 +89,8 @@ std::vector<LLMutex*> LLCurl::sSSLMutex; std::string LLCurl::sCAPath; std::string LLCurl::sCAFile; LLCurlThread* LLCurl::sCurlThread = NULL ; +LLMutex* LLCurl::sHandleMutexp = NULL ; +S32 LLCurl::sTotalHandles = 0 ; void check_curl_code(CURLcode code) { @@ -224,13 +228,15 @@ LLMutex* LLCurl::Easy::sHandleMutexp = NULL ; //static CURL* LLCurl::Easy::allocEasyHandle() { + llassert(LLCurl::getCurlThread()) ; + CURL* ret = NULL; LLMutexLock lock(sHandleMutexp) ; if (sFreeHandles.empty()) { - ret = curl_easy_init(); + ret = LLCurl::newEasyHandle(); } else { @@ -250,16 +256,27 @@ CURL* LLCurl::Easy::allocEasyHandle() //static void LLCurl::Easy::releaseEasyHandle(CURL* handle) { + static const S32 MAX_NUM_FREE_HANDLES = 32 ; + if (!handle) { - llerrs << "handle cannot be NULL!" << llendl; + return ; //handle allocation failed. + //llerrs << "handle cannot be NULL!" << llendl; } LLMutexLock lock(sHandleMutexp) ; if (sActiveHandles.find(handle) != sActiveHandles.end()) { sActiveHandles.erase(handle); - sFreeHandles.insert(handle); + + if(sFreeHandles.size() < MAX_NUM_FREE_HANDLES) + { + sFreeHandles.insert(handle); + } + else + { + LLCurl::deleteEasyHandle(handle) ; + } } else { @@ -474,6 +491,7 @@ void LLCurl::Easy::prepRequest(const std::string& url, LLProxy::getInstance()->applyProxySettings(this); mOutput.reset(new LLBufferArray); + mOutput->setThreaded(true); setopt(CURLOPT_WRITEFUNCTION, (void*)&curlWriteCallback); setopt(CURLOPT_WRITEDATA, (void*)this); @@ -517,8 +535,7 @@ void LLCurl::Easy::prepRequest(const std::string& url, } //////////////////////////////////////////////////////////////////////////// -LLMutex* LLCurl::Multi::sMultiInitMutexp = NULL ; -LLCurl::Multi::Multi() +LLCurl::Multi::Multi(F32 idle_time_out) : mQueued(0), mErrorCount(0), mState(STATE_READY), @@ -527,28 +544,47 @@ LLCurl::Multi::Multi() mDeletionMutexp(NULL), mEasyMutexp(NULL) { - mCurlMultiHandle = initMulti(); + mCurlMultiHandle = LLCurl::newMultiHandle(); if (!mCurlMultiHandle) { llwarns << "curl_multi_init() returned NULL! Easy handles: " << gCurlEasyCount << " Multi handles: " << gCurlMultiCount << llendl; - mCurlMultiHandle = initMulti(); + mCurlMultiHandle = LLCurl::newMultiHandle(); } - llassert_always(mCurlMultiHandle); - - if(LLCurl::getCurlThread()->getThreaded()) + //llassert_always(mCurlMultiHandle); + + if(mCurlMultiHandle) { - mMutexp = new LLMutex(NULL) ; - mDeletionMutexp = new LLMutex(NULL) ; - mEasyMutexp = new LLMutex(NULL) ; - } - LLCurl::getCurlThread()->addMulti(this) ; + if(LLCurl::getCurlThread()->getThreaded()) + { + mMutexp = new LLMutex(NULL) ; + mDeletionMutexp = new LLMutex(NULL) ; + mEasyMutexp = new LLMutex(NULL) ; + } + LLCurl::getCurlThread()->addMulti(this) ; + + mIdleTimeOut = idle_time_out ; + if(mIdleTimeOut < DEFAULT_MULTI_IDLE_TIME) + { + mIdleTimeOut = DEFAULT_MULTI_IDLE_TIME ; + } - ++gCurlMultiCount; + ++gCurlMultiCount; + } } LLCurl::Multi::~Multi() { + cleanup() ; +} + +void LLCurl::Multi::cleanup() +{ + if(!mCurlMultiHandle) + { + return ; //nothing to clean. + } + // Clean up active for(easy_active_list_t::iterator iter = mEasyActiveList.begin(); iter != mEasyActiveList.end(); ++iter) @@ -564,7 +600,8 @@ LLCurl::Multi::~Multi() for_each(mEasyFreeList.begin(), mEasyFreeList.end(), DeletePointer()); mEasyFreeList.clear(); - check_curl_multi_code(curl_multi_cleanup(mCurlMultiHandle)); + check_curl_multi_code(LLCurl::deleteMultiHandle(mCurlMultiHandle)); + mCurlMultiHandle = NULL ; delete mMutexp ; mMutexp = NULL ; @@ -572,15 +609,13 @@ LLCurl::Multi::~Multi() mDeletionMutexp = NULL ; delete mEasyMutexp ; mEasyMutexp = NULL ; - + + mQueued = 0 ; + mState = STATE_COMPLETED; + --gCurlMultiCount; -} - -CURLM* LLCurl::Multi::initMulti() -{ - LLMutexLock lock(sMultiInitMutexp) ; - return curl_multi_init() ; + return ; } void LLCurl::Multi::lock() @@ -604,6 +639,7 @@ void LLCurl::Multi::markDead() LLMutexLock lock(mDeletionMutexp) ; mDead = TRUE ; + LLCurl::getCurlThread()->setPriority(mHandle, LLQueuedThread::PRIORITY_URGENT) ; } void LLCurl::Multi::setState(LLCurl::Multi::ePerformState state) @@ -630,6 +666,11 @@ bool LLCurl::Multi::isCompleted() bool LLCurl::Multi::waitToComplete() { + if(!isValid()) + { + return true ; + } + if(!mMutexp) //not threaded { doPerform() ; @@ -639,7 +680,7 @@ bool LLCurl::Multi::waitToComplete() bool completed = (STATE_COMPLETED == mState) ; if(!completed) { - LLCurl::getCurlThread()->setPriority(mHandle, LLQueuedThread::PRIORITY_URGENT) ; + LLCurl::getCurlThread()->setPriority(mHandle, LLQueuedThread::PRIORITY_HIGH) ; } return completed; @@ -689,7 +730,12 @@ bool LLCurl::Multi::doPerform() } mQueued = q; - setState(STATE_COMPLETED) ; + setState(STATE_COMPLETED) ; + mIdleTimer.reset() ; + } + else if(mIdleTimer.getElapsedTimeF32() > mIdleTimeOut) //idle for too long, remove it. + { + dead = true ; } return dead ; @@ -697,6 +743,11 @@ bool LLCurl::Multi::doPerform() S32 LLCurl::Multi::process() { + if(!isValid()) + { + return 0 ; + } + waitToComplete() ; if (getState() != STATE_COMPLETED) @@ -849,7 +900,11 @@ bool LLCurlThread::CurlRequest::processRequest() if(mMulti) { completed = mCurlThread->doMultiPerform(mMulti) ; - setPriority(LLQueuedThread::PRIORITY_LOW) ; + + if(!completed) + { + setPriority(LLQueuedThread::PRIORITY_LOW) ; + } } return completed ; @@ -857,24 +912,26 @@ bool LLCurlThread::CurlRequest::processRequest() void LLCurlThread::CurlRequest::finishRequest(bool completed) { - mCurlThread->deleteMulti(mMulti) ; + if(mMulti->isDead()) + { + mCurlThread->deleteMulti(mMulti) ; + } + else + { + mCurlThread->cleanupMulti(mMulti) ; //being idle too long, remove the request. + } + mMulti = NULL ; } LLCurlThread::LLCurlThread(bool threaded) : LLQueuedThread("curlthread", threaded) { - if(!LLCurl::Multi::sMultiInitMutexp) - { - LLCurl::Multi::sMultiInitMutexp = new LLMutex(NULL) ; - } } //virtual LLCurlThread::~LLCurlThread() { - delete LLCurl::Multi::sMultiInitMutexp ; - LLCurl::Multi::sMultiInitMutexp = NULL ; } S32 LLCurlThread::update(F32 max_time_ms) @@ -896,7 +953,19 @@ void LLCurlThread::addMulti(LLCurl::Multi* multi) void LLCurlThread::killMulti(LLCurl::Multi* multi) { - multi->markDead() ; + if(!multi) + { + return ; + } + + if(multi->isValid()) + { + multi->markDead() ; + } + else + { + deleteMulti(multi) ; + } } //private @@ -910,6 +979,13 @@ void LLCurlThread::deleteMulti(LLCurl::Multi* multi) { delete multi ; } + +//private +void LLCurlThread::cleanupMulti(LLCurl::Multi* multi) +{ + multi->cleanup() ; +} + //------------------------------------------------------------ //static @@ -942,7 +1018,14 @@ LLCurlRequest::~LLCurlRequest() void LLCurlRequest::addMulti() { LLCurl::Multi* multi = new LLCurl::Multi(); - + if(!multi->isValid()) + { + LLCurl::getCurlThread()->killMulti(multi) ; + mActiveMulti = NULL ; + mActiveRequestCount = 0 ; + return; + } + mMultiSet.insert(multi); mActiveMulti = multi; mActiveRequestCount = 0; @@ -956,7 +1039,12 @@ LLCurl::Easy* LLCurlRequest::allocEasy() { addMulti(); } - llassert_always(mActiveMulti); + if(!mActiveMulti) + { + return NULL ; + } + + //llassert_always(mActiveMulti); ++mActiveRequestCount; LLCurl::Easy* easy = mActiveMulti->allocEasy(); return easy; @@ -1066,6 +1154,19 @@ S32 LLCurlRequest::process() { curlmulti_set_t::iterator curiter = iter++; LLCurl::Multi* multi = *curiter; + + if(!multi->isValid()) + { + if(multi == mActiveMulti) + { + mActiveMulti = NULL ; + mActiveRequestCount = 0 ; + } + mMultiSet.erase(curiter) ; + LLCurl::getCurlThread()->killMulti(multi) ; + continue ; + } + S32 tres = multi->process(); res += tres; if (multi != mActiveMulti && tres == 0 && multi->mQueued == 0) @@ -1086,6 +1187,19 @@ S32 LLCurlRequest::getQueued() { curlmulti_set_t::iterator curiter = iter++; LLCurl::Multi* multi = *curiter; + + if(!multi->isValid()) + { + if(multi == mActiveMulti) + { + mActiveMulti = NULL ; + mActiveRequestCount = 0 ; + } + LLCurl::getCurlThread()->killMulti(multi); + mMultiSet.erase(curiter) ; + continue ; + } + queued += multi->mQueued; if (multi->getState() != LLCurl::Multi::STATE_READY) { @@ -1105,13 +1219,22 @@ LLCurlEasyRequest::LLCurlEasyRequest() { mMulti = new LLCurl::Multi(); - mEasy = mMulti->allocEasy(); - if (mEasy) + if(mMulti->isValid()) + { + mEasy = mMulti->allocEasy(); + if (mEasy) + { + mEasy->setErrorBuffer(); + mEasy->setCA(); + // Set proxy settings if configured to do so. + LLProxy::getInstance()->applyProxySettings(mEasy); + } + } + else { - mEasy->setErrorBuffer(); - mEasy->setCA(); - // Set proxy settings if configured to do so. - LLProxy::getInstance()->applyProxySettings(mEasy); + LLCurl::getCurlThread()->killMulti(mMulti) ; + mEasy = NULL ; + mMulti = NULL ; } } @@ -1122,7 +1245,7 @@ LLCurlEasyRequest::~LLCurlEasyRequest() void LLCurlEasyRequest::setopt(CURLoption option, S32 value) { - if (mEasy) + if (isValid() && mEasy) { mEasy->setopt(option, value); } @@ -1130,7 +1253,7 @@ void LLCurlEasyRequest::setopt(CURLoption option, S32 value) void LLCurlEasyRequest::setoptString(CURLoption option, const std::string& value) { - if (mEasy) + if (isValid() && mEasy) { mEasy->setoptString(option, value); } @@ -1138,7 +1261,7 @@ void LLCurlEasyRequest::setoptString(CURLoption option, const std::string& value void LLCurlEasyRequest::setPost(char* postdata, S32 size) { - if (mEasy) + if (isValid() && mEasy) { mEasy->setopt(CURLOPT_POST, 1); mEasy->setopt(CURLOPT_POSTFIELDS, postdata); @@ -1148,7 +1271,7 @@ void LLCurlEasyRequest::setPost(char* postdata, S32 size) void LLCurlEasyRequest::setHeaderCallback(curl_header_callback callback, void* userdata) { - if (mEasy) + if (isValid() && mEasy) { mEasy->setopt(CURLOPT_HEADERFUNCTION, (void*)callback); mEasy->setopt(CURLOPT_HEADERDATA, userdata); // aka CURLOPT_WRITEHEADER @@ -1157,7 +1280,7 @@ void LLCurlEasyRequest::setHeaderCallback(curl_header_callback callback, void* u void LLCurlEasyRequest::setWriteCallback(curl_write_callback callback, void* userdata) { - if (mEasy) + if (isValid() && mEasy) { mEasy->setopt(CURLOPT_WRITEFUNCTION, (void*)callback); mEasy->setopt(CURLOPT_WRITEDATA, userdata); @@ -1166,7 +1289,7 @@ void LLCurlEasyRequest::setWriteCallback(curl_write_callback callback, void* use void LLCurlEasyRequest::setReadCallback(curl_read_callback callback, void* userdata) { - if (mEasy) + if (isValid() && mEasy) { mEasy->setopt(CURLOPT_READFUNCTION, (void*)callback); mEasy->setopt(CURLOPT_READDATA, userdata); @@ -1175,7 +1298,7 @@ void LLCurlEasyRequest::setReadCallback(curl_read_callback callback, void* userd void LLCurlEasyRequest::setSSLCtxCallback(curl_ssl_ctx_callback callback, void* userdata) { - if (mEasy) + if (isValid() && mEasy) { mEasy->setopt(CURLOPT_SSL_CTX_FUNCTION, (void*)callback); mEasy->setopt(CURLOPT_SSL_CTX_DATA, userdata); @@ -1184,7 +1307,7 @@ void LLCurlEasyRequest::setSSLCtxCallback(curl_ssl_ctx_callback callback, void* void LLCurlEasyRequest::slist_append(const char* str) { - if (mEasy) + if (isValid() && mEasy) { mEasy->slist_append(str); } @@ -1195,7 +1318,7 @@ void LLCurlEasyRequest::sendRequest(const std::string& url) llassert_always(!mRequestSent); mRequestSent = true; lldebugs << url << llendl; - if (mEasy) + if (isValid() && mEasy) { mEasy->setHeaders(); mEasy->setoptString(CURLOPT_URL, url); @@ -1207,7 +1330,7 @@ void LLCurlEasyRequest::requestComplete() { llassert_always(mRequestSent); mRequestSent = false; - if (mEasy) + if (isValid() && mEasy) { mMulti->removeEasy(mEasy); } @@ -1216,6 +1339,10 @@ void LLCurlEasyRequest::requestComplete() // Usage: Call getRestult until it returns false (no more messages) bool LLCurlEasyRequest::getResult(CURLcode* result, LLCurl::TransferInfo* info) { + if(!isValid()) + { + return false ; + } if (!mMulti->isCompleted()) { //we're busy, try again later return false; @@ -1280,7 +1407,7 @@ CURLMsg* LLCurlEasyRequest::info_read(S32* q, LLCurl::TransferInfo* info) std::string LLCurlEasyRequest::getErrorString() { - return mEasy ? std::string(mEasy->getErrorBuffer()) : std::string(); + return isValid() && mEasy ? std::string(mEasy->getErrorBuffer()) : std::string(); } //////////////////////////////////////////////////////////////////////////// @@ -1328,6 +1455,7 @@ void LLCurl::initClass(bool multi_threaded) sCurlThread = new LLCurlThread(multi_threaded) ; if(multi_threaded) { + sHandleMutexp = new LLMutex(NULL) ; Easy::sHandleMutexp = new LLMutex(NULL) ; } } @@ -1354,7 +1482,7 @@ void LLCurl::cleanupClass() for (std::set<CURL*>::iterator iter = Easy::sFreeHandles.begin(); iter != Easy::sFreeHandles.end(); ++iter) { CURL* curl = *iter; - curl_easy_cleanup(curl); + LLCurl::deleteEasyHandle(curl); } Easy::sFreeHandles.clear(); @@ -1362,9 +1490,77 @@ void LLCurl::cleanupClass() delete Easy::sHandleMutexp ; Easy::sHandleMutexp = NULL ; + delete sHandleMutexp ; + sHandleMutexp = NULL ; + llassert(Easy::sActiveHandles.empty()); } +//static +CURLM* LLCurl::newMultiHandle() +{ + LLMutexLock lock(sHandleMutexp) ; + + if(sTotalHandles + 1 > MAX_NUM_OF_HANDLES) + { + llwarns << "no more handles available." << llendl ; + return NULL ; //failed + } + sTotalHandles++; + + CURLM* ret = curl_multi_init() ; + if(!ret) + { + llwarns << "curl_multi_init failed." << llendl ; + } + + return ret ; +} + +//static +CURLMcode LLCurl::deleteMultiHandle(CURLM* handle) +{ + if(handle) + { + LLMutexLock lock(sHandleMutexp) ; + sTotalHandles-- ; + return curl_multi_cleanup(handle) ; + } + return CURLM_OK ; +} + +//static +CURL* LLCurl::newEasyHandle() +{ + LLMutexLock lock(sHandleMutexp) ; + + if(sTotalHandles + 1 > MAX_NUM_OF_HANDLES) + { + llwarns << "no more handles available." << llendl ; + return NULL ; //failed + } + sTotalHandles++; + + CURL* ret = curl_easy_init() ; + if(!ret) + { + llwarns << "curl_easy_init failed." << llendl ; + } + + return ret ; +} + +//static +void LLCurl::deleteEasyHandle(CURL* handle) +{ + if(handle) + { + LLMutexLock lock(sHandleMutexp) ; + curl_easy_cleanup(handle) ; + sTotalHandles-- ; + } +} + const unsigned int LLCurl::MAX_REDIRECTS = 5; // Provide access to LLCurl free functions outside of llcurl.cpp without polluting the global namespace. diff --git a/indra/llmessage/llcurl.h b/indra/llmessage/llcurl.h index 9c2c215c7a..2b23ac9763 100644 --- a/indra/llmessage/llcurl.h +++ b/indra/llmessage/llcurl.h @@ -43,6 +43,7 @@ #include "llsd.h" #include "llthread.h" #include "llqueuedthread.h" +#include "llframetimer.h" class LLMutex; class LLCurlThread; @@ -182,11 +183,20 @@ public: static unsigned long ssl_thread_id(void); static LLCurlThread* getCurlThread() { return sCurlThread ;} + + static CURLM* newMultiHandle() ; + static CURLMcode deleteMultiHandle(CURLM* handle) ; + static CURL* newEasyHandle() ; + static void deleteEasyHandle(CURL* handle) ; + private: static std::string sCAPath; static std::string sCAFile; static const unsigned int MAX_REDIRECTS; static LLCurlThread* sCurlThread; + + static LLMutex* sHandleMutexp ; + static S32 sTotalHandles ; }; class LLCurl::Easy @@ -277,7 +287,7 @@ public: STATE_COMPLETED=2 } ePerformState; - Multi(); + Multi(F32 idle_time_out = 0.f); LLCurl::Easy* allocEasy(); bool addEasy(LLCurl::Easy* easy); @@ -288,7 +298,10 @@ public: void setState(ePerformState state) ; ePerformState getState() ; + bool isCompleted() ; + bool isValid() {return mCurlMultiHandle != NULL ;} + bool isDead() {return mDead;} bool waitToComplete() ; @@ -299,9 +312,9 @@ public: S32 mQueued; S32 mErrorCount; - static CURLM* initMulti() ; private: void easyFree(LLCurl::Easy*); + void cleanup() ; CURLM* mCurlMultiHandle; @@ -319,8 +332,8 @@ private: LLMutex* mMutexp ; LLMutex* mDeletionMutexp ; LLMutex* mEasyMutexp ; - - static LLMutex* sMultiInitMutexp ; + LLFrameTimer mIdleTimer ; + F32 mIdleTimeOut; }; class LLCurlThread : public LLQueuedThread @@ -357,6 +370,7 @@ public: private: bool doMultiPerform(LLCurl::Multi* multi) ; void deleteMulti(LLCurl::Multi* multi) ; + void cleanupMulti(LLCurl::Multi* multi) ; } ; namespace boost @@ -414,6 +428,7 @@ public: std::string getErrorString(); bool isCompleted() {return mMulti->isCompleted() ;} bool wait() { return mMulti->waitToComplete(); } + bool isValid() {return mMulti && mMulti->isValid(); } LLCurl::Easy* getEasy() const { return mEasy; } diff --git a/indra/llmessage/llhttpassetstorage.cpp b/indra/llmessage/llhttpassetstorage.cpp index 2bca517e97..612d765969 100644 --- a/indra/llmessage/llhttpassetstorage.cpp +++ b/indra/llmessage/llhttpassetstorage.cpp @@ -232,7 +232,8 @@ LLSD LLHTTPAssetRequest::getFullDetails() const void LLHTTPAssetRequest::setupCurlHandle() { // *NOTE: Similar code exists in mapserver/llcurlutil.cpp JC - mCurlHandle = curl_easy_init(); + mCurlHandle = LLCurl::newEasyHandle(); + llassert_always(mCurlHandle != NULL) ; // Apply proxy settings if configured to do so LLProxy::getInstance()->applyProxySettings(mCurlHandle); @@ -278,7 +279,7 @@ void LLHTTPAssetRequest::setupCurlHandle() void LLHTTPAssetRequest::cleanupCurlHandle() { - curl_easy_cleanup(mCurlHandle); + LLCurl::deleteEasyHandle(mCurlHandle); if (mAssetStoragep) { // Terminating a request. Thus upload or download is no longer pending. @@ -429,12 +430,13 @@ void LLHTTPAssetStorage::_init(const std::string& web_host, const std::string& l // curl_global_init moved to LLCurl::initClass() - mCurlMultiHandle = curl_multi_init(); + mCurlMultiHandle = LLCurl::newMultiHandle() ; + llassert_always(mCurlMultiHandle != NULL) ; } LLHTTPAssetStorage::~LLHTTPAssetStorage() { - curl_multi_cleanup(mCurlMultiHandle); + LLCurl::deleteMultiHandle(mCurlMultiHandle); mCurlMultiHandle = NULL; // curl_global_cleanup moved to LLCurl::initClass() diff --git a/indra/llmessage/llhttpclient.cpp b/indra/llmessage/llhttpclient.cpp index dd4e3a6300..231cb7ca8f 100644 --- a/indra/llmessage/llhttpclient.cpp +++ b/indra/llmessage/llhttpclient.cpp @@ -228,6 +228,12 @@ static void request( LLPumpIO::chain_t chain; LLURLRequest* req = new LLURLRequest(method, url); + if(!req->isValid())//failed + { + delete req ; + return ; + } + req->setSSLVerifyCallback(LLHTTPClient::getCertVerifyCallback(), (void *)req); @@ -423,7 +429,9 @@ static LLSD blocking_request( { lldebugs << "blockingRequest of " << url << llendl; char curl_error_buffer[CURL_ERROR_SIZE] = "\0"; - CURL* curlp = curl_easy_init(); + CURL* curlp = LLCurl::newEasyHandle(); + llassert_always(curlp != NULL) ; + LLHTTPBuffer http_buffer; std::string body_str; @@ -517,7 +525,7 @@ static LLSD blocking_request( } // * Cleanup - curl_easy_cleanup(curlp); + LLCurl::deleteEasyHandle(curlp); return response; } diff --git a/indra/llmessage/lliohttpserver.cpp b/indra/llmessage/lliohttpserver.cpp index 73e8a69085..987f386aa3 100644 --- a/indra/llmessage/lliohttpserver.cpp +++ b/indra/llmessage/lliohttpserver.cpp @@ -818,6 +818,8 @@ LLIOPipe::EStatus LLHTTPResponder::process_impl( // Copy everything after mLast read to the out. LLBufferArray::segment_iterator_t seg_iter; + + buffer->lock(); seg_iter = buffer->splitAfter(mLastRead); if(seg_iter != buffer->endSegment()) { @@ -838,7 +840,7 @@ LLIOPipe::EStatus LLHTTPResponder::process_impl( } #endif } - + buffer->unlock(); // // *FIX: get rid of extra bytes off the end // diff --git a/indra/llmessage/lliopipe.cpp b/indra/llmessage/lliopipe.cpp index 6e4eec74a6..8f827f7a30 100644 --- a/indra/llmessage/lliopipe.cpp +++ b/indra/llmessage/lliopipe.cpp @@ -75,6 +75,12 @@ LLIOPipe::~LLIOPipe() //lldebugs << "destroying LLIOPipe" << llendl; } +//virtual +bool LLIOPipe::isValid() +{ + return true ; +} + // static std::string LLIOPipe::lookupStatusString(EStatus status) { diff --git a/indra/llmessage/lliopipe.h b/indra/llmessage/lliopipe.h index 8e656b6da1..cbd17b5a3d 100644 --- a/indra/llmessage/lliopipe.h +++ b/indra/llmessage/lliopipe.h @@ -231,6 +231,8 @@ public: */ virtual ~LLIOPipe(); + virtual bool isValid() ; + protected: /** * @brief Base Constructor. diff --git a/indra/llmessage/lliosocket.cpp b/indra/llmessage/lliosocket.cpp index 54ceab3422..d5b4d45821 100644 --- a/indra/llmessage/lliosocket.cpp +++ b/indra/llmessage/lliosocket.cpp @@ -445,6 +445,7 @@ LLIOPipe::EStatus LLIOSocketWriter::process_impl( // efficient - not only because writev() is better, but also // because we won't have to do as much work to find the start // address. + buffer->lock(); LLBufferArray::segment_iterator_t it; LLBufferArray::segment_iterator_t end = buffer->endSegment(); LLSegment segment; @@ -524,6 +525,8 @@ LLIOPipe::EStatus LLIOSocketWriter::process_impl( } } + buffer->unlock(); + PUMP_DEBUG; if(done && eos) { diff --git a/indra/llmessage/llpumpio.cpp b/indra/llmessage/llpumpio.cpp index a8d2a0a224..f3ef4f2684 100644 --- a/indra/llmessage/llpumpio.cpp +++ b/indra/llmessage/llpumpio.cpp @@ -195,7 +195,7 @@ bool LLPumpIO::prime(apr_pool_t* pool) return ((pool == NULL) ? false : true); } -bool LLPumpIO::addChain(const chain_t& chain, F32 timeout) +bool LLPumpIO::addChain(const chain_t& chain, F32 timeout, bool has_curl_request) { LLMemType m1(LLMemType::MTYPE_IO_PUMP); if(chain.empty()) return false; @@ -204,8 +204,10 @@ bool LLPumpIO::addChain(const chain_t& chain, F32 timeout) LLScopedLock lock(mChainsMutex); #endif LLChainInfo info; + info.mHasCurlRequest = has_curl_request; info.setTimeoutSeconds(timeout); info.mData = LLIOPipe::buffer_ptr_t(new LLBufferArray); + info.mData->setThreaded(has_curl_request); LLLinkInfo link; #if LL_DEBUG_PIPE_TYPE_IN_PUMP lldebugs << "LLPumpIO::addChain() " << chain[0] << " '" @@ -440,6 +442,15 @@ void LLPumpIO::pump() static LLFastTimer::DeclareTimer FTM_PUMP_IO("Pump IO"); +LLPumpIO::current_chain_t LLPumpIO::removeRunningChain(LLPumpIO::current_chain_t& run_chain) +{ + std::for_each( + (*run_chain).mDescriptors.begin(), + (*run_chain).mDescriptors.end(), + ll_delete_apr_pollset_fd_client_data()); + return mRunningChains.erase(run_chain); +} + //timeout is in microseconds void LLPumpIO::pump(const S32& poll_timeout) { @@ -585,10 +596,16 @@ void LLPumpIO::pump(const S32& poll_timeout) // << (*run_chain).mChainLinks[0].mPipe // << " because we reached the end." << llendl; #endif - run_chain = mRunningChains.erase(run_chain); + run_chain = removeRunningChain(run_chain); continue; } } + else if(isChainExpired(*run_chain)) + { + run_chain = removeRunningChain(run_chain); + continue; + } + PUMP_DEBUG; if((*run_chain).mLock) { @@ -696,11 +713,7 @@ void LLPumpIO::pump(const S32& poll_timeout) PUMP_DEBUG; // This chain is done. Clean up any allocated memory and // erase the chain info. - std::for_each( - (*run_chain).mDescriptors.begin(), - (*run_chain).mDescriptors.end(), - ll_delete_apr_pollset_fd_client_data()); - run_chain = mRunningChains.erase(run_chain); + run_chain = removeRunningChain(run_chain); // *NOTE: may not always need to rebuild the pollset. mRebuildPollset = true; @@ -1095,6 +1108,24 @@ void LLPumpIO::processChain(LLChainInfo& chain) PUMP_DEBUG; } +bool LLPumpIO::isChainExpired(LLChainInfo& chain) +{ + if(!chain.mHasCurlRequest) + { + return false ; + } + + for(links_t::iterator iter = chain.mChainLinks.begin(); iter != chain.mChainLinks.end(); ++iter) + { + if(!(*iter).mPipe->isValid()) + { + return true ; + } + } + + return false ; +} + bool LLPumpIO::handleChainError( LLChainInfo& chain, LLIOPipe::EStatus error) @@ -1136,6 +1167,9 @@ bool LLPumpIO::handleChainError( #endif keep_going = false; break; + case LLIOPipe::STATUS_EXPIRED: + keep_going = false; + break ; default: if(LLIOPipe::isSuccess(error)) { @@ -1157,7 +1191,8 @@ bool LLPumpIO::handleChainError( LLPumpIO::LLChainInfo::LLChainInfo() : mInit(false), mLock(0), - mEOS(false) + mEOS(false), + mHasCurlRequest(false) { LLMemType m1(LLMemType::MTYPE_IO_PUMP); mTimer.setTimerExpirySec(DEFAULT_CHAIN_EXPIRY_SECS); diff --git a/indra/llmessage/llpumpio.h b/indra/llmessage/llpumpio.h index 9303c9d7fc..d2c5d37571 100644 --- a/indra/llmessage/llpumpio.h +++ b/indra/llmessage/llpumpio.h @@ -111,9 +111,10 @@ public: * @param chain The pipes for the chain * @param timeout The number of seconds in the future to * expire. Pass in 0.0f to never expire. + * @param has_curl_request The chain contains LLURLRequest if true. * @return Returns true if anything was added to the pump. */ - bool addChain(const chain_t& chain, F32 timeout); + bool addChain(const chain_t& chain, F32 timeout, bool has_curl_request = false); /** * @brief Struct to associate a pipe with it's buffer io indexes. @@ -356,12 +357,13 @@ protected: // basic member data bool mInit; + bool mEOS; + bool mHasCurlRequest; S32 mLock; LLFrameTimer mTimer; links_t::iterator mHead; links_t mChainLinks; - LLIOPipe::buffer_ptr_t mData; - bool mEOS; + LLIOPipe::buffer_ptr_t mData; LLSD mContext; // tracking inside the pump @@ -402,7 +404,7 @@ protected: protected: void initialize(apr_pool_t* pool); void cleanup(); - + current_chain_t removeRunningChain(current_chain_t& chain) ; /** * @brief Given the internal state of the chains, rebuild the pollset * @see setConditional() @@ -429,6 +431,9 @@ protected: */ bool handleChainError(LLChainInfo& chain, LLIOPipe::EStatus error); + //if the chain is expired, remove it + bool isChainExpired(LLChainInfo& chain) ; + public: /** * @brief Return number of running chains. diff --git a/indra/llmessage/llsdrpcclient.h b/indra/llmessage/llsdrpcclient.h index 9fb49a5c33..0cecf4f688 100644 --- a/indra/llmessage/llsdrpcclient.h +++ b/indra/llmessage/llsdrpcclient.h @@ -240,9 +240,16 @@ public: virtual bool build(LLPumpIO::chain_t& chain, LLSD context) const { lldebugs << "LLSDRPCClientFactory::build" << llendl; - LLIOPipe::ptr_t service(new Client); - chain.push_back(service); LLURLRequest* http(new LLURLRequest(LLURLRequest::HTTP_POST)); + if(!http->isValid()) + { + llwarns << "Creating LLURLRequest failed." << llendl ; + delete http; + return false; + } + + LLIOPipe::ptr_t service(new Client); + chain.push_back(service); LLIOPipe::ptr_t http_pipe(http); http->addHeader("Content-Type: text/llsd"); if(mURL.empty()) @@ -283,9 +290,16 @@ public: virtual bool build(LLPumpIO::chain_t& chain, LLSD context) const { lldebugs << "LLXMLSDRPCClientFactory::build" << llendl; - LLIOPipe::ptr_t service(new Client); - chain.push_back(service); + LLURLRequest* http(new LLURLRequest(LLURLRequest::HTTP_POST)); + if(!http->isValid()) + { + llwarns << "Creating LLURLRequest failed." << llendl ; + delete http; + return false ; + } + LLIOPipe::ptr_t service(new Client); + chain.push_back(service); LLIOPipe::ptr_t http_pipe(http); http->addHeader("Content-Type: text/xml"); if(mURL.empty()) diff --git a/indra/llmessage/llurlrequest.cpp b/indra/llmessage/llurlrequest.cpp index 261e57e79e..a16f5c7bf0 100644 --- a/indra/llmessage/llurlrequest.cpp +++ b/indra/llmessage/llurlrequest.cpp @@ -83,6 +83,12 @@ LLURLRequestDetail::LLURLRequestDetail() : { LLMemType m1(LLMemType::MTYPE_IO_URL_REQUEST); mCurlRequest = new LLCurlEasyRequest(); + + if(!mCurlRequest->isValid()) //failed. + { + delete mCurlRequest ; + mCurlRequest = NULL ; + } } LLURLRequestDetail::~LLURLRequestDetail() @@ -250,12 +256,24 @@ void LLURLRequest::allowCookies() mDetail->mCurlRequest->setoptString(CURLOPT_COOKIEFILE, ""); } +//virtual +bool LLURLRequest::isValid() +{ + return mDetail->mCurlRequest && mDetail->mCurlRequest->isValid(); +} + // virtual LLIOPipe::EStatus LLURLRequest::handleError( LLIOPipe::EStatus status, LLPumpIO* pump) { LLMemType m1(LLMemType::MTYPE_IO_URL_REQUEST); + + if(!isValid()) + { + return STATUS_EXPIRED ; + } + if(mCompletionCallback && pump) { LLURLRequestComplete* complete = NULL; @@ -441,6 +459,12 @@ void LLURLRequest::initialize() LLMemType m1(LLMemType::MTYPE_IO_URL_REQUEST); mState = STATE_INITIALIZED; mDetail = new LLURLRequestDetail; + + if(!isValid()) + { + return ; + } + mDetail->mCurlRequest->setopt(CURLOPT_NOSIGNAL, 1); mDetail->mCurlRequest->setWriteCallback(&downCallback, (void*)this); mDetail->mCurlRequest->setReadCallback(&upCallback, (void*)this); diff --git a/indra/llmessage/llurlrequest.h b/indra/llmessage/llurlrequest.h index ec5c2c1941..44d358d906 100644 --- a/indra/llmessage/llurlrequest.h +++ b/indra/llmessage/llurlrequest.h @@ -188,6 +188,8 @@ public: */ void allowCookies(); + /*virtual*/ bool isValid() ; + public: /** * @brief Give this pipe a chance to handle a generated error |