void ungrab_dbus_syms() { // should be safe to call regardless of whether we've // actually grabbed syms. if ( sSymDBUSDSOHandleG ) { apr_dso_unload(sSymDBUSDSOHandleG); sSymDBUSDSOHandleG = NULL; } sSymDBUSDSOMemoryPool.destroy(); // NULL-out all of the symbols we'd grabbed #define LL_DBUS_SYM(REQUIRED, DBUSSYM, RTN, ...) do{ll##DBUSSYM = NULL;}while(0) #include "llappviewerlinux_api_dbus_syms_raw.inc" #undef LL_DBUS_SYM sSymsGrabbed = false; }
bool grab_dbus_syms(std::string dbus_dso_name) { if (sSymsGrabbed) { // already have grabbed good syms return TRUE; } bool sym_error = false; bool rtn = false; apr_status_t rv; apr_dso_handle_t *sSymDBUSDSOHandle = NULL; #define LL_DBUS_SYM(REQUIRED, DBUSSYM, RTN, ...) do{rv = apr_dso_sym((apr_dso_handle_sym_t*)&ll##DBUSSYM, sSymDBUSDSOHandle, #DBUSSYM); if (rv != APR_SUCCESS) {INFOMSG("Failed to grab symbol: %s", #DBUSSYM); if (REQUIRED) sym_error = true;} else DEBUGMSG("grabbed symbol: %s from %p", #DBUSSYM, (void*)ll##DBUSSYM);}while(0) //attempt to load the shared library sSymDBUSDSOMemoryPool.create(); #ifdef LL_STANDALONE void *dso_handle = dlopen(dbus_dso_name.c_str(), RTLD_NOW | RTLD_GLOBAL); rv = (!dso_handle)?APR_EDSOOPEN:apr_os_dso_handle_put(&sSymDBUSDSOHandle, dso_handle, sSymDBUSDSOMemoryPool()); if ( APR_SUCCESS == rv ) #else if ( APR_SUCCESS == (rv = apr_dso_load(&sSymDBUSDSOHandle, dbus_dso_name.c_str(), sSymDBUSDSOMemoryPool()) )) #endif { INFOMSG("Found DSO: %s", dbus_dso_name.c_str()); #include "llappviewerlinux_api_dbus_syms_raw.inc" if ( sSymDBUSDSOHandle ) { sSymDBUSDSOHandleG = sSymDBUSDSOHandle; sSymDBUSDSOHandle = NULL; } rtn = !sym_error; } else { INFOMSG("Couldn't load DSO: %s", dbus_dso_name.c_str()); rtn = false; // failure } if (sym_error) { WARNMSG("Failed to find necessary symbols in DBUS-GLIB libraries."); } #undef LL_DBUS_SYM sSymsGrabbed = rtn; if (!sSymsGrabbed) { sSymDBUSDSOMemoryPool.destroy(); } return rtn; }