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Diffstat (limited to 'indra/llcommon/llcallstack.cpp')
| -rw-r--r-- | indra/llcommon/llcallstack.cpp | 190 |
1 files changed, 190 insertions, 0 deletions
diff --git a/indra/llcommon/llcallstack.cpp b/indra/llcommon/llcallstack.cpp new file mode 100644 index 0000000000..8db291eed1 --- /dev/null +++ b/indra/llcommon/llcallstack.cpp @@ -0,0 +1,190 @@ +/** + * @file llcallstack.cpp + * @brief run-time extraction of the current callstack + * + * $LicenseInfo:firstyear=2016&license=viewerlgpl$ + * Second Life Viewer Source Code + * Copyright (C) 2016, 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 + * $/LicenseInfo$ + */ + +#include "linden_common.h" + +#include "llcommon.h" +#include "llcallstack.h" +#include "StackWalker.h" +#include "llthreadlocalstorage.h" + +#if LL_WINDOWS +class LLCallStackImpl: public StackWalker +{ +public: + LLCallStackImpl(): + StackWalker(false,0) // non-verbose, options = 0 + { + } + ~LLCallStackImpl() + { + } + void getStack(std::vector<std::string>& stack, S32 skip_count=0, bool verbose=false) + { + m_stack.clear(); + ShowCallstack(verbose); + // Skip the first few lines because they're just bookkeeping for LLCallStack, + // plus any additional lines requested to skip. + S32 first_line = skip_count + 3; + for (S32 i=first_line; i<m_stack.size(); ++i) + { + stack.push_back(m_stack[i]); + } + } +protected: + virtual void OnOutput(LPCSTR szText) + { + m_stack.push_back(szText); + } + std::vector<std::string> m_stack; +}; +#else +// Stub - not implemented currently on other platforms. +class LLCallStackImpl +{ +public: + LLCallStackImpl() {} + ~LLCallStackImpl() {} + void getStack(std::vector<std::string>& stack, S32 skip_count=0, bool verbose=false) + { + stack.clear(); + } +}; +#endif + +LLCallStackImpl *LLCallStack::s_impl = NULL; + +LLCallStack::LLCallStack(S32 skip_count, bool verbose): + m_skipCount(skip_count), + m_verbose(verbose) +{ + if (!s_impl) + { + s_impl = new LLCallStackImpl; + } + LLTimer t; + s_impl->getStack(m_strings, m_skipCount, m_verbose); +} + +bool LLCallStack::contains(const std::string& str) +{ + for (std::vector<std::string>::const_iterator it = m_strings.begin(); + it != m_strings.end(); ++it) + { + if (it->find(str) != std::string::npos) + { + return true; + } + } + return false; +} + +std::ostream& operator<<(std::ostream& s, const LLCallStack& call_stack) +{ +#ifndef LL_RELEASE_FOR_DOWNLOAD + std::vector<std::string>::const_iterator it; + for (it=call_stack.m_strings.begin(); it!=call_stack.m_strings.end(); ++it) + { + s << *it; + } +#else + s << "UNAVAILABLE IN RELEASE"; +#endif + return s; +} + +LLContextStrings::LLContextStrings() +{ +} + +// static +LLContextStrings* LLContextStrings::getThreadLocalInstance() +{ + LLContextStrings *cons = LLThreadLocalSingletonPointer<LLContextStrings>::getInstance(); + if (!cons) + { + LLThreadLocalSingletonPointer<LLContextStrings>::setInstance(new LLContextStrings); + } + return LLThreadLocalSingletonPointer<LLContextStrings>::getInstance(); +} + +// static +void LLContextStrings::addContextString(const std::string& str) +{ + LLContextStrings *cons = getThreadLocalInstance(); + //LL_INFOS() << "CTX " << (S32)cons << " ADD " << str << " CNT " << cons->m_contextStrings[str] << LL_ENDL; + cons->m_contextStrings[str]++; +} + +// static +void LLContextStrings::removeContextString(const std::string& str) +{ + LLContextStrings *cons = getThreadLocalInstance(); + cons->m_contextStrings[str]--; + //LL_INFOS() << "CTX " << (S32)cons << " REMOVE " << str << " CNT " << cons->m_contextStrings[str] << LL_ENDL; + if (cons->m_contextStrings[str] == 0) + { + cons->m_contextStrings.erase(str); + } +} + +// static +bool LLContextStrings::contains(const std::string& str) +{ + const std::map<std::string,S32>& strings = + LLThreadLocalSingletonPointer<LLContextStrings>::getInstance()->m_contextStrings; + for (std::map<std::string,S32>::const_iterator it = strings.begin(); it!=strings.end(); ++it) + { + if (it->first.find(str) != std::string::npos) + { + return true; + } + } + return false; +} + +// static +void LLContextStrings::output(std::ostream& os) +{ + const std::map<std::string,S32>& strings = + LLThreadLocalSingletonPointer<LLContextStrings>::getInstance()->m_contextStrings; + for (std::map<std::string,S32>::const_iterator it = strings.begin(); it!=strings.end(); ++it) + { + os << it->first << "[" << it->second << "]" << "\n"; + } +} + +// static +std::ostream& operator<<(std::ostream& s, const LLContextStatus& context_status) +{ + LLThreadLocalSingletonPointer<LLContextStrings>::getInstance()->output(s); + return s; +} + +bool LLContextStatus::contains(const std::string& str) +{ + return LLThreadLocalSingletonPointer<LLContextStrings>::getInstance()->contains(str); +} |