diff options
Diffstat (limited to 'indra/media_plugins/base')
| -rw-r--r-- | indra/media_plugins/base/CMakeLists.txt | 8 | ||||
| -rw-r--r-- | indra/media_plugins/base/media_plugin_base.cpp | 99 | ||||
| -rw-r--r-- | indra/media_plugins/base/media_plugin_base.h | 41 |
3 files changed, 138 insertions, 10 deletions
diff --git a/indra/media_plugins/base/CMakeLists.txt b/indra/media_plugins/base/CMakeLists.txt index 64b6a4228d..57e3782ada 100644 --- a/indra/media_plugins/base/CMakeLists.txt +++ b/indra/media_plugins/base/CMakeLists.txt @@ -12,13 +12,6 @@ include(PluginAPI) ### media_plugin_base -if(NOT ADDRESS_SIZE EQUAL 32) - if(WINDOWS) - ##add_definitions(/FIXED:NO) - else(WINDOWS) # not windows therefore gcc LINUX and DARWIN - add_definitions(-fPIC) - endif(WINDOWS) -endif(NOT ADDRESS_SIZE EQUAL 32) set(media_plugin_base_SOURCE_FILES media_plugin_base.cpp @@ -31,6 +24,7 @@ set(media_plugin_base_HEADER_FILES ) add_library(media_plugin_base + STATIC ${media_plugin_base_SOURCE_FILES} ) diff --git a/indra/media_plugins/base/media_plugin_base.cpp b/indra/media_plugins/base/media_plugin_base.cpp index 545eee25a9..d54e67c532 100644 --- a/indra/media_plugins/base/media_plugin_base.cpp +++ b/indra/media_plugins/base/media_plugin_base.cpp @@ -167,10 +167,60 @@ void MediaPluginBase::sendStatus() sendMessage(message); } +#if LL_LINUX || __FreeBSD__ + +size_t SymbolGrabber::registerSymbol( SymbolToGrab aSymbol ) +{ + gSymbolsToGrab.emplace_back(aSymbol); + return gSymbolsToGrab.size(); +} + +bool SymbolGrabber::grabSymbols(std::vector< std::string > const &aDSONames) +{ + std::cerr << "SYMBOLS: " << gSymbolsToGrab.size() << std::endl; + + if (sSymsGrabbed) + return true; + + //attempt to load the shared libraries + apr_pool_create(&sSymDSOMemoryPool, nullptr); + + for( std::vector< std::string >::const_iterator itr = aDSONames.begin(); itr != aDSONames.end(); ++itr ) + { + apr_dso_handle_t *pDSO(NULL); + std::string strDSO{ *itr }; + if( APR_SUCCESS == apr_dso_load( &pDSO, strDSO.c_str(), sSymDSOMemoryPool )) + sLoadedLibraries.push_back( pDSO ); + + for( auto i = 0; i < gSymbolsToGrab.size(); ++i ) + { + if( !*gSymbolsToGrab[i].mPPFunc ) + apr_dso_sym( gSymbolsToGrab[i].mPPFunc, pDSO, gSymbolsToGrab[i].mName ); + } + } + + bool sym_error = false; + + for( auto i = 0; i < gSymbolsToGrab.size(); ++i ) + { + if( gSymbolsToGrab[ i ].mRequired && ! *gSymbolsToGrab[ i ].mPPFunc ) + sym_error = true; + } + + sSymsGrabbed = !sym_error; + return sSymsGrabbed; +} + +void SymbolGrabber::ungrabSymbols() +{ + +} +#endif + #if LL_WINDOWS # define LLSYMEXPORT __declspec(dllexport) -#elif LL_LINUX +#elif LL_LINUX || __FreeBSD__ # define LLSYMEXPORT __attribute__ ((visibility("default"))) #else # define LLSYMEXPORT /**/ @@ -204,3 +254,50 @@ int WINAPI DllEntryPoint( HINSTANCE hInstance, unsigned long reason, void* param return 1; } #endif + +#if LL_LINUX +pid_t getParentPid( pid_t aPid ) +{ + std::stringstream strm; + strm << "/proc/" << aPid << "/status"; + std::ifstream in{ strm.str() }; + + if( !in.is_open() ) + return 0; + + pid_t res {0}; + while( !in.eof() && res == 0 ) + { + std::string line; + line.resize( 1024, 0 ); + in.getline( &line[0], line.length() ); + + auto i = line.find( "PPid:" ); + + if( i == std::string::npos ) + continue; + + char const *pIn = line.c_str() + 5; // Skip over pid; + while( *pIn != 0 && isspace( *pIn ) ) + ++pIn; + + if( *pIn ) + res = atoll( pIn ); + } + return res; +} + +bool isPluginPid( pid_t aPid ) +{ + auto myPid = getpid(); + + do + { + if( aPid == myPid ) + return true; + aPid = getParentPid( aPid ); + } while( aPid > 1 ); + + return false; +} +#endif diff --git a/indra/media_plugins/base/media_plugin_base.h b/indra/media_plugins/base/media_plugin_base.h index f65c712a66..a6f3bc7d71 100644 --- a/indra/media_plugins/base/media_plugin_base.h +++ b/indra/media_plugins/base/media_plugin_base.h @@ -32,6 +32,41 @@ #include "llpluginmessage.h" #include "llpluginmessageclasses.h" +#if LL_LINUX || __FreeBSD__ + +struct SymbolToGrab +{ + bool mRequired; + char const *mName; + apr_dso_handle_sym_t *mPPFunc; +}; + +class SymbolGrabber +{ +public: + size_t registerSymbol( SymbolToGrab aSymbol ); + bool grabSymbols(std::vector< std::string > const &aDSONames); + void ungrabSymbols(); + +private: + std::vector< SymbolToGrab > gSymbolsToGrab; + + bool sSymsGrabbed = false; + apr_pool_t *sSymDSOMemoryPool = nullptr; + std::vector<apr_dso_handle_t *> sLoadedLibraries; +}; + +extern SymbolGrabber gSymbolGrabber; + +// extern SymbolGrabber gSymbolGrabber; + +#define LL_GRAB_SYM(SYMBOL_GRABBER, REQUIRED, SYMBOL_NAME, RETURN, ...) \ + RETURN (*ll##SYMBOL_NAME)(__VA_ARGS__) = nullptr; \ + size_t gRegistered##SYMBOL_NAME = SYMBOL_GRABBER.registerSymbol( \ + { REQUIRED, #SYMBOL_NAME , (apr_dso_handle_sym_t*)&ll##SYMBOL_NAME} \ + ); + +#endif class MediaPluginBase { @@ -46,7 +81,6 @@ public: static void staticReceiveMessage(const char *message_string, void **user_data); protected: - /** Plugin status. */ typedef enum { @@ -126,4 +160,7 @@ int init_media_plugin( LLPluginInstance::sendMessageFunction *plugin_send_func, void **plugin_user_data); - +#if LL_LINUX +pid_t getParentPid(pid_t aPid); +bool isPluginPid(pid_t aPid); +#endif |