android/extension_handler_registry.cpp

   1 //#define LOG_NDEBUG 0
   2 #define LOG_TAG "RegistryLoader"
   3 #include <utils/Log.h>
   4
   5 #include "extension_handler_registry.h"
   6 #include "PVPlayerExtHandler.h"
   7
   8 #include "oscl_shared_library.h"
   9 #include "oscl_library_list.h"
  10 #include "oscl_configfile_list.h"
  11 #include "osclconfig_lib.h"
  12 #include "oscl_shared_lib_interface.h"
  13
  14
  15 PVPlayerExtensionRegistry::PVPlayerExtensionRegistry()
  16 {
  17     // The default value reserved is 4
  18     mType.reserve(4);
  19     LOGV("PVPlayerExtensionRegistry::PVPlayerExtensionRegistry OUT");
  20 }
  21
  22 PVPlayerExtensionRegistry::~PVPlayerExtensionRegistry()
  23 {
  24     mType.clear();
  25     LOGV("PVPlayerExtensionRegistry::~PVPlayerExtensionRegistry OUT");
  26 }
  27
  28 void PVPlayerExtensionRegistry::loadPVPlayerExtensions(const OSCL_String& configFilePath)
  29 {
  30     LOGV("PVPlayerExtensionRegistry::loadPVPlayerExtensions() IN");
  31     OsclLibraryList libList;
  32     libList.Populate(PV_EXTN_REGISTRY_POPULATOR_INTERFACE, configFilePath);
  33
  34     for (unsigned int i = 0; i < libList.Size(); i++)
  35     {
  36         OsclSharedLibrary* lib = OSCL_NEW(OsclSharedLibrary, ());
  37         if (lib->LoadLib(libList.GetLibraryPathAt(i)) == OsclLibSuccess) {
  38             OsclAny* interfacePtr = NULL;
  39             OsclLibStatus result = lib->QueryInterface(PV_EXTN_REGISTRY_POPULATOR_INTERFACE, (OsclAny*&)interfacePtr);
  40             if (result == OsclLibSuccess && interfacePtr != NULL) {
  41                 PVPlayerExtnSharedLibInfo *libInfo = (PVPlayerExtnSharedLibInfo *)oscl_malloc(sizeof(PVPlayerExtnSharedLibInfo));
  42                 if (NULL != libInfo) {
  43                     libInfo->mLib = lib;
  44                     ExtnRegPopulatorInterface* extnIntPtr = OSCL_DYNAMIC_CAST(ExtnRegPopulatorInterface*, interfacePtr);
  45                     libInfo->mExtnLibIfacePtr = extnIntPtr;
  46                     extnIntPtr->registerExtensions(this);
  47                     // save for depopulation later
  48                     mExtnIfaceInfoList.push_front(libInfo);
  49                     continue;
  50                 }
  51             } else {
  52                 LOGV("PVPlayerExtensionRegistry::loadPVPlayerExtensions() QueryInterface() of PV_EXTNIFACE_REGISTRY_POPULATOR_INTERFACE for library %s failed.", libList.GetLibraryPathAt(i).get_cstr());
  53             }
  54         } else {
  55             LOGV("PVPlayerExtensionRegistry::loadPVPlayerExtensions() LoadLib() of library %s failed.", libList.GetLibraryPathAt(i).get_cstr());
  56         }
  57         lib->Close();
  58         OSCL_DELETE(lib);
  59     }
  60     LOGV("PVPlayerExtensionRegistry::loadPVPlayerExtensions() OUT");
  61 }
  62
  63 void PVPlayerExtensionRegistry::removePVPlayerExtensions()
  64 {
  65     LOGV("PVPlayerExtensionRegistry::removePVPlayerExtensions() IN");
  66
  67     while (!mExtnIfaceInfoList.empty())
  68     {
  69         PVPlayerExtnSharedLibInfo *libInfo = mExtnIfaceInfoList.front();
  70         mExtnIfaceInfoList.erase(mExtnIfaceInfoList.begin());
  71
  72         OsclSharedLibrary* lib = libInfo->mLib;
  73         oscl_free(libInfo);
  74         lib->Close();
  75         OSCL_DELETE(lib);
  76     }
  77     LOGV("PVPlayerExtensionRegistry::removePVPlayerExtensions() OUT");
  78 }
  79
  80 IDispatch* PVPlayerExtensionRegistry::createExtension(const String16& extnIfaceUID,PVPlayerExtensionHandler& extnHandler )
  81 {
  82     LOGV("PVPlayerExtensionRegistry::createExtension() IN");
  83     bool foundFlag = false;
  84     uint32 extnSearchCount = 0;
  85
  86     while (extnSearchCount < mType.size())
  87     {
  88         //Search if the UUID's will match
  89         if (extnIfaceUID == (String16(mType[extnSearchCount].mExtnUID))) {
  90             //Since the UUID's match set the flag to true
  91             foundFlag = true;
  92             break;
  93         }
  94         extnSearchCount++;
  95     }
  96
  97     if (foundFlag) {
  98         PVPlayerExtnInfo* extnInfo = &mType[extnSearchCount];
  99         IDispatch* extInterface = NULL;
 100
 101         if (NULL != extnInfo->mExtnCreateFunc) {
 102             extInterface = (*(mType[extnSearchCount].mExtnCreateFunc))(extnHandler);
 103         }
 104         LOGV("PVPlayerExtensionRegistry::createExtension OUT extInterface = %d", (int32_t)extInterface);
 105         return extInterface;
 106     } else {
 107         LOGV("PVPlayerExtensionRegistry::createExtension OUT");
 108         return NULL;
 109     }
 110 }
 111
 112 void PVPlayerExtnPopulator::populate(PVPlayerExtensionRegistry& extnIfaceRegistry)
 113 {
 114     LOGV("PVPlayerExtnPopulator::populate IN");
 115     OsclConfigFileList aCfgList;
 116     // collects all config files from the project specified directory
 117     if (NULL != PV_DYNAMIC_LOADING_CONFIG_FILE_PATH) {
 118         OSCL_HeapString<OsclMemAllocator> configFilePath = PV_DYNAMIC_LOADING_CONFIG_FILE_PATH;
 119         aCfgList.Populate(configFilePath);
 120     }
 121     // populate libraries from all config files
 122     for (uint k = 0; k < aCfgList.Size(); k++)
 123     {
 124         extnIfaceRegistry.loadPVPlayerExtensions(aCfgList.GetConfigfileAt(k));
 125     }
 126     LOGV("PVPlayerExtnPopulator::populate OUT");
 127 }
 128 void PVPlayerExtnPopulator::depopulate(PVPlayerExtensionRegistry& extnIfaceRegistry)
 129 {
 130     extnIfaceRegistry.removePVPlayerExtensions();
 131     LOGV("PVPlayerExtnPopulator::depopulate OUT");
 132 }