void
panel_session_init (void)
{
EggSMClientMode mode;
EggSMClient *client;
/* Explicitly tell the session manager we're ready -- we don't do it
* before. Note: this depends on setting the mode to DISABLED early
* during startup. */
if (do_not_restart || getenv ("MATE_PANEL_DEBUG"))
mode = EGG_SM_CLIENT_MODE_NO_RESTART;
else
mode = EGG_SM_CLIENT_MODE_NORMAL;
egg_sm_client_set_mode (mode);
client = egg_sm_client_get ();
g_signal_connect (client, "quit",
G_CALLBACK (panel_session_handle_quit), NULL);
#ifdef HAVE_X11
if (is_using_x11 ()) {
/* We don't want the X WM to try and save/restore our
* window position */
gdk_x11_set_sm_client_id (NULL);
}
#endif
}
void
nsNativeAppSupportUnix::DisconnectFromSM()
{
// the SM is free to exit any time after we disconnect, so callers must be
// sure to have reached a sufficiently advanced phase of shutdown that there
// is no risk of data loss:
// e.g. all async writes are complete by the end of "profile-before-change"
if (mSessionConnection) {
SetClientState(STATE_DISCONNECTED);
SmcCloseConnection(mSessionConnection, 0, nullptr);
mSessionConnection = nullptr;
gdk_x11_set_sm_client_id(nullptr); // follow gnome-client behaviour
}
}
void
panel_session_init (void)
{
gboolean res;
res = session_manager_connect ();
if (! res) {
g_warning ("Unable to connect to session manager");
exit (1);
}
res = register_client ();
if (! res) {
g_warning ("Unable to register client with session manager");
}
/* We don't want the WM to try and save/restore our
* window position */
gdk_x11_set_sm_client_id (NULL);
}
void
x_session_initialize (struct x_display_info *dpyinfo)
{
#define SM_ERRORSTRING_LEN 512
char errorstring[SM_ERRORSTRING_LEN];
char *previous_id = NULL;
SmcCallbacks callbacks;
ptrdiff_t name_len = 0;
/* libSM seems to crash if pwd is missing - see bug#18851. */
if (! get_current_dir_name ())
{
fprintf (stderr, "Disabling session management due to pwd error: %s\n",
emacs_strerror (errno));
return;
}
ice_fd = -1;
doing_interact = false;
/* Check if we where started by the session manager. If so, we will
have a previous id. */
if (STRINGP (Vx_session_previous_id))
previous_id = SSDATA (Vx_session_previous_id);
/* Construct the path to the Emacs program. */
if (STRINGP (Vinvocation_directory))
name_len += SBYTES (Vinvocation_directory);
if (STRINGP (Vinvocation_name))
name_len += SBYTES (Vinvocation_name);
/* This malloc will not be freed, but it is only done once, and hopefully
not very large */
emacs_program = xmalloc (name_len + 1);
char *z = emacs_program;
if (STRINGP (Vinvocation_directory))
z = lispstpcpy (z, Vinvocation_directory);
if (STRINGP (Vinvocation_name))
lispstpcpy (z, Vinvocation_name);
/* The SM protocol says all callbacks are mandatory, so set up all
here and in the mask passed to SmcOpenConnection. */
callbacks.save_yourself.callback = smc_save_yourself_CB;
callbacks.save_yourself.client_data = 0;
callbacks.die.callback = smc_die_CB;
callbacks.die.client_data = 0;
callbacks.save_complete.callback = smc_save_complete_CB;
callbacks.save_complete.client_data = 0;
callbacks.shutdown_cancelled.callback = smc_shutdown_cancelled_CB;
callbacks.shutdown_cancelled.client_data = 0;
/* Set error handlers. */
SmcSetErrorHandler (smc_error_handler);
IceSetErrorHandler (ice_error_handler);
IceSetIOErrorHandler (ice_io_error_handler);
/* Install callback for when connection status changes. */
IceAddConnectionWatch (ice_conn_watch_CB, 0);
/* Open the connection to the session manager. A failure is not
critical, it usually means that no session manager is running.
The errorstring is here for debugging. */
smc_conn = SmcOpenConnection (NULL, NULL, 1, 0,
(SmcSaveYourselfProcMask|
SmcDieProcMask|
SmcSaveCompleteProcMask|
SmcShutdownCancelledProcMask),
&callbacks,
previous_id,
&client_id,
SM_ERRORSTRING_LEN,
errorstring);
if (smc_conn != 0)
{
Vx_session_id = build_string (client_id);
#ifdef USE_GTK
/* GTK creates a leader window by itself, but we need to tell
it about our client_id. */
gdk_x11_set_sm_client_id (client_id);
#else
create_client_leader_window (dpyinfo, client_id);
#endif
}
}
NS_IMETHODIMP
nsNativeAppSupportUnix::Start(bool *aRetVal)
{
NS_ASSERTION(gAppData, "gAppData must not be null.");
// The dbus library is used by both nsWifiScannerDBus and BluetoothDBusService,
// from diffrent threads. This could lead to race conditions if the dbus is not
// initialized before making any other library calls.
#ifdef MOZ_ENABLE_DBUS
dbus_threads_init_default();
#endif
#if (MOZ_WIDGET_GTK == 2)
if (gtk_major_version < MIN_GTK_MAJOR_VERSION ||
(gtk_major_version == MIN_GTK_MAJOR_VERSION && gtk_minor_version < MIN_GTK_MINOR_VERSION)) {
GtkWidget* versionErrDialog = gtk_message_dialog_new(nullptr,
GtkDialogFlags(GTK_DIALOG_MODAL |
GTK_DIALOG_DESTROY_WITH_PARENT),
GTK_MESSAGE_ERROR,
GTK_BUTTONS_OK,
UNSUPPORTED_GTK_MSG,
gtk_major_version,
gtk_minor_version,
MIN_GTK_MAJOR_VERSION,
MIN_GTK_MINOR_VERSION);
gtk_dialog_run(GTK_DIALOG(versionErrDialog));
gtk_widget_destroy(versionErrDialog);
exit(0);
}
#endif
*aRetVal = true;
#ifdef MOZ_X11
gboolean sm_disable = FALSE;
if (!getenv("SESSION_MANAGER")) {
sm_disable = TRUE;
}
nsAutoCString prev_client_id;
char **curarg = gArgv + 1;
while (*curarg) {
char *arg = *curarg;
if (arg[0] == '-' && arg[1] == '-') {
arg += 2;
if (!strcmp(arg, "sm-disable")) {
RemoveArg(curarg);
sm_disable = TRUE;
continue;
} else if (!strcmp(arg, "sm-client-id")) {
RemoveArg(curarg);
if (*curarg[0] != '-') {
prev_client_id = *curarg;
RemoveArg(curarg);
}
continue;
}
}
++curarg;
}
if (prev_client_id.IsEmpty()) {
prev_client_id = getenv("DESKTOP_AUTOSTART_ID");
}
// We don't want child processes to use the same ID
unsetenv("DESKTOP_AUTOSTART_ID");
char *client_id = nullptr;
if (!sm_disable) {
PRLibrary *iceLib = PR_LoadLibrary("libICE.so.6");
if (!iceLib) {
return NS_OK;
}
PRLibrary *smLib = PR_LoadLibrary("libSM.so.6");
if (!smLib) {
PR_UnloadLibrary(iceLib);
return NS_OK;
}
IceSetIOErrorHandler = (IceSetIOErrorHandlerFn)PR_FindFunctionSymbol(iceLib, "IceSetIOErrorHandler");
IceAddConnectionWatch = (IceAddConnectionWatchFn)PR_FindFunctionSymbol(iceLib, "IceAddConnectionWatch");
IceConnectionNumber = (IceConnectionNumberFn)PR_FindFunctionSymbol(iceLib, "IceConnectionNumber");
IceProcessMessages = (IceProcessMessagesFn)PR_FindFunctionSymbol(iceLib, "IceProcessMessages");
IceGetConnectionContext = (IceGetConnectionContextFn)PR_FindFunctionSymbol(iceLib, "IceGetConnectionContext");
if (!IceSetIOErrorHandler || !IceAddConnectionWatch ||
!IceConnectionNumber || !IceProcessMessages || !IceGetConnectionContext) {
PR_UnloadLibrary(iceLib);
PR_UnloadLibrary(smLib);
return NS_OK;
}
SmcInteractDone = (SmcInteractDoneFn)PR_FindFunctionSymbol(smLib, "SmcInteractDone");
SmcSaveYourselfDone = (SmcSaveYourselfDoneFn)PR_FindFunctionSymbol(smLib, "SmcSaveYourselfDone");
SmcInteractRequest = (SmcInteractRequestFn)PR_FindFunctionSymbol(smLib, "SmcInteractRequest");
SmcCloseConnection = (SmcCloseConnectionFn)PR_FindFunctionSymbol(smLib, "SmcCloseConnection");
SmcOpenConnection = (SmcOpenConnectionFn)PR_FindFunctionSymbol(smLib, "SmcOpenConnection");
SmcSetProperties = (SmcSetPropertiesFn)PR_FindFunctionSymbol(smLib, "SmcSetProperties");
if (!SmcInteractDone || !SmcSaveYourselfDone || !SmcInteractRequest ||
!SmcCloseConnection || !SmcOpenConnection || !SmcSetProperties) {
PR_UnloadLibrary(iceLib);
PR_UnloadLibrary(smLib);
return NS_OK;
}
ice_init();
// all callbacks are mandatory in libSM 1.0, so listen even if we don't care.
unsigned long mask = SmcSaveYourselfProcMask | SmcDieProcMask |
SmcSaveCompleteProcMask | SmcShutdownCancelledProcMask;
SmcCallbacks callbacks;
callbacks.save_yourself.callback = nsNativeAppSupportUnix::SaveYourselfCB;
callbacks.save_yourself.client_data = static_cast<SmPointer>(this);
callbacks.die.callback = nsNativeAppSupportUnix::DieCB;
callbacks.die.client_data = static_cast<SmPointer>(this);
callbacks.save_complete.callback = nsNativeAppSupportUnix::SaveCompleteCB;
callbacks.save_complete.client_data = nullptr;
callbacks.shutdown_cancelled.callback =
nsNativeAppSupportUnix::ShutdownCancelledCB;
callbacks.shutdown_cancelled.client_data = static_cast<SmPointer>(this);
char errbuf[256];
mSessionConnection = SmcOpenConnection(nullptr, this, SmProtoMajor,
SmProtoMinor, mask, &callbacks,
prev_client_id.get(), &client_id,
sizeof(errbuf), errbuf);
}
if (!mSessionConnection) {
return NS_OK;
}
LogModule::Init(); // need to make sure initialized before SetClientState
if (prev_client_id.IsEmpty() ||
(client_id && !prev_client_id.Equals(client_id))) {
SetClientState(STATE_REGISTERING);
} else {
SetClientState(STATE_IDLE);
}
gdk_x11_set_sm_client_id(client_id);
// Set SM Properties
// SmCloneCommand, SmProgram, SmRestartCommand, SmUserID are required
// properties so must be set, and must have a sensible fallback value.
// Determine executable path to use for XSMP session restore
// Is there a request to suppress default binary launcher?
nsAutoCString path(getenv("MOZ_APP_LAUNCHER"));
if (path.IsEmpty()) {
NS_ASSERTION(gDirServiceProvider, "gDirServiceProvider is NULL! This shouldn't happen!");
nsCOMPtr<nsIFile> executablePath;
nsresult rv;
bool dummy;
rv = gDirServiceProvider->GetFile(XRE_EXECUTABLE_FILE, &dummy, getter_AddRefs(executablePath));
if (NS_SUCCEEDED(rv)) {
// Strip off the -bin suffix to get the shell script we should run; this is what Breakpad does
nsAutoCString leafName;
rv = executablePath->GetNativeLeafName(leafName);
if (NS_SUCCEEDED(rv) && StringEndsWith(leafName, NS_LITERAL_CSTRING("-bin"))) {
leafName.SetLength(leafName.Length() - strlen("-bin"));
executablePath->SetNativeLeafName(leafName);
}
executablePath->GetNativePath(path);
}
}
if (path.IsEmpty()) {
// can't determine executable path. Best fallback is name from
// application.ini but it might not resolve to the same executable at
// launch time.
path = gAppData->name; // will always be set
ToLowerCase(path);
MOZ_LOG(sMozSMLog, LogLevel::Warning,
("Could not determine executable path. Falling back to %s.", path.get()));
}
SmProp propRestart, propClone, propProgram, propUser, *props[4];
SmPropValue valsRestart[3], valsClone[1], valsProgram[1], valsUser[1];
int n = 0;
NS_NAMED_LITERAL_CSTRING(kClientIDParam, "--sm-client-id");
SetSMValue(valsRestart[0], path);
SetSMValue(valsRestart[1], kClientIDParam);
SetSMValue(valsRestart[2], nsDependentCString(client_id));
SetSMProperty(propRestart, SmRestartCommand, SmLISTofARRAY8, 3, valsRestart);
props[n++] = &propRestart;
SetSMValue(valsClone[0], path);
SetSMProperty(propClone, SmCloneCommand, SmLISTofARRAY8, 1, valsClone);
props[n++] = &propClone;
nsAutoCString appName(gAppData->name); // will always be set
ToLowerCase(appName);
SetSMValue(valsProgram[0], appName);
SetSMProperty(propProgram, SmProgram, SmARRAY8, 1, valsProgram);
props[n++] = &propProgram;
nsAutoCString userName; // username that started the program
struct passwd* pw = getpwuid(getuid());
if (pw && pw->pw_name) {
userName = pw->pw_name;
} else {
userName = NS_LITERAL_CSTRING("nobody");
MOZ_LOG(sMozSMLog, LogLevel::Warning,
("Could not determine user-name. Falling back to %s.", userName.get()));
}
SetSMValue(valsUser[0], userName);
SetSMProperty(propUser, SmUserID, SmARRAY8, 1, valsUser);
props[n++] = &propUser;
SmcSetProperties(mSessionConnection, n, props);
g_free(client_id);
#endif /* MOZ_X11 */
return NS_OK;
}
