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;
}
