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-rw-r--r--src/session.cpp427
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diff --git a/src/session.cpp b/src/session.cpp
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-/*
- * Copyright © 2005 Novell, Inc.
- *
- * Permission to use, copy, modify, distribute, and sell this software
- * and its documentation for any purpose is hereby granted without
- * fee, provided that the above copyright notice appear in all copies
- * and that both that copyright notice and this permission notice
- * appear in supporting documentation, and that the name of
- * Novell, Inc. not be used in advertising or publicity pertaining to
- * distribution of the software without specific, written prior permission.
- * Novell, Inc. makes no representations about the suitability of this
- * software for any purpose. It is provided "as is" without express or
- * implied warranty.
- *
- * NOVELL, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
- * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN
- * NO EVENT SHALL NOVELL, INC. BE LIABLE FOR ANY SPECIAL, INDIRECT OR
- * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS
- * OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
- * NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
- * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
- *
- * Author: Radek Doulik <rodo@novell.com>
- */
-
-#ifdef HAVE_CONFIG_H
-# include <config.h>
-#endif
-
-#include <compiz.h>
-
-#include <stdlib.h>
-#include <stdio.h>
-#include <poll.h>
-#include <unistd.h>
-#include <fcntl.h>
-#include <string.h>
-#include <pwd.h>
-#include <X11/SM/SMlib.h>
-#include <X11/ICE/ICElib.h>
-
-#include <boost/bind.hpp>
-
-#include <core/session.h>
-#include <core/core.h>
-
-#define SM_DEBUG(x)
-
-static SmcConn smcConnection;
-static CompWatchFdHandle iceWatchFdHandle;
-static bool connected = false;
-static bool iceConnected = false;
-static char *smClientId, *smPrevClientId;
-
-static void iceInit (void);
-
-static void
-setStringListProperty (SmcConn connection,
- const char *name,
- const char **values,
- int nValues)
-{
- SmProp prop, *pProp;
- int i;
-
- prop.name = (char *) name;
- prop.type = const_cast<char *> (SmLISTofARRAY8);
-
- prop.vals = (SmPropValue *) malloc (nValues * sizeof (SmPropValue));
- if (!prop.vals)
- return;
-
- for (i = 0; i < nValues; i++)
- {
- prop.vals[i].value = (char *) values[i];
- prop.vals[i].length = strlen (values[i]);
- }
-
- prop.num_vals = nValues;
-
- pProp = &prop;
-
- SmcSetProperties (connection, 1, &pProp);
-
- free (prop.vals);
-}
-
-static void
-setCloneRestartCommands (SmcConn connection)
-{
- const char **args;
- int i, count = 0;
-
- /* at maximum, we pass our old arguments + our new client id
- to the SM, so allocate for that case */
- args = (const char **) malloc ((programArgc + 2) * sizeof (char *));
- if (!args)
- return;
-
- for (i = 0; i < programArgc; i++)
- {
- if (strcmp (programArgv[i], "--sm-client-id") == 0)
- i++; /* skip old client id, we'll add the new one later */
- else if (strcmp (programArgv[i], "--replace") == 0)
- continue; /* there's nothing to replace when starting session */
- else
- args[count++] = programArgv[i];
- }
-
- setStringListProperty (connection, SmCloneCommand, args, count);
-
- /* insert new client id at position 1 and 2;
- position 0 is the executable name */
- for (i = count - 1; i >= 1; i--)
- args[i + 2] = args[i];
- args[1] = "--sm-client-id";
- args[2] = smClientId;
- count += 2;
-
- setStringListProperty (connection, SmRestartCommand, args, count);
-
- free (args);
-}
-
-static void
-setRestartStyle (SmcConn connection,
- char hint)
-{
- SmProp prop, *pProp;
- SmPropValue propVal;
-
- prop.name = const_cast<char *> (SmRestartStyleHint);
- prop.type = const_cast<char *> (SmCARD8);
- prop.num_vals = 1;
- prop.vals = &propVal;
- propVal.value = &hint;
- propVal.length = 1;
-
- pProp = &prop;
-
- SmcSetProperties (connection, 1, &pProp);
-}
-
-static void
-setProgramInfo (SmcConn connection,
- pid_t pid,
- uid_t uid)
-{
- SmProp progProp, pidProp, userProp;
- SmPropValue progVal, pidVal, userVal;
- SmProp *props[3];
- char pidBuffer[32];
- unsigned int count = 0;
- struct passwd *pw;
-
- progProp.name = const_cast<char *> (SmProgram);
- progProp.type = const_cast<char *> (SmARRAY8);
- progProp.num_vals = 1;
- progProp.vals = &progVal;
- progVal.value = (SmPointer) "compiz";
- progVal.length = strlen ((char *) progVal.value);
-
- props[count++] = &progProp;
-
- snprintf (pidBuffer, sizeof (pidBuffer), "%d", pid);
-
- pidProp.name = const_cast<char *> (SmProcessID);
- pidProp.type = const_cast<char *> (SmARRAY8);
- pidProp.num_vals = 1;
- pidProp.vals = &pidVal;
- pidVal.value = (SmPointer) pidBuffer;
- pidVal.length = strlen (pidBuffer);
-
- props[count++] = &pidProp;
-
- pw = getpwuid (uid);
- if (pw)
- {
- userProp.name = const_cast<char *> (SmUserID);
- userProp.type = const_cast<char *> (SmARRAY8);
- userProp.num_vals = 1;
- userProp.vals = &userVal;
- userVal.value = (SmPointer) pw->pw_name;
- userVal.length = strlen (pw->pw_name);
-
- props[count++] = &userProp;
- }
-
- SmcSetProperties (connection, count, props);
-}
-
-static void
-saveYourselfCallback (SmcConn connection,
- SmPointer client_data,
- int saveType,
- Bool shutdown,
- int interact_Style,
- Bool fast)
-{
- CompOption::Vector args;
-
- args.push_back (CompOption ("save_type", CompOption::TypeInt));
- args.push_back (CompOption ("shutdown", CompOption::TypeBool));
- args.push_back (CompOption ("interact_style", CompOption::TypeInt));
- args.push_back (CompOption ("fast", CompOption::TypeBool));
-
- args[0].value ().set (saveType);
- args[1].value ().set ((bool) shutdown);
- args[2].value ().set (interact_Style);
- args[3].value ().set ((bool) fast);
-
- screen->sessionEvent (CompSession::EventSaveYourself, args);
-
- setCloneRestartCommands (connection);
- setRestartStyle (connection, SmRestartImmediately);
- setProgramInfo (connection, getpid (), getuid ());
- SmcSaveYourselfDone (connection, 1);
-}
-
-static void
-dieCallback (SmcConn connection,
- SmPointer clientData)
-{
- screen->sessionEvent (CompSession::EventDie, noOptions);
-
- CompSession::close ();
- exit (0);
-}
-
-static void
-saveCompleteCallback (SmcConn connection,
- SmPointer clientData)
-{
- screen->sessionEvent (CompSession::EventSaveComplete, noOptions);
-}
-
-static void
-shutdownCancelledCallback (SmcConn connection,
- SmPointer clientData)
-{
- screen->sessionEvent (CompSession::EventShutdownCancelled, noOptions);
-}
-
-void
-CompSession::init (char *prevClientId)
-{
- static SmcCallbacks callbacks;
-
- if (getenv ("SESSION_MANAGER"))
- {
- char errorBuffer[1024];
-
- iceInit ();
-
- callbacks.save_yourself.callback = saveYourselfCallback;
- callbacks.save_yourself.client_data = NULL;
-
- callbacks.die.callback = dieCallback;
- callbacks.die.client_data = NULL;
-
- callbacks.save_complete.callback = saveCompleteCallback;
- callbacks.save_complete.client_data = NULL;
-
- callbacks.shutdown_cancelled.callback = shutdownCancelledCallback;
- callbacks.shutdown_cancelled.client_data = NULL;
-
- smcConnection = SmcOpenConnection (NULL,
- NULL,
- SmProtoMajor,
- SmProtoMinor,
- SmcSaveYourselfProcMask |
- SmcDieProcMask |
- SmcSaveCompleteProcMask |
- SmcShutdownCancelledProcMask,
- &callbacks,
- prevClientId,
- &smClientId,
- sizeof (errorBuffer),
- errorBuffer);
- if (!smcConnection)
- compLogMessage ("core", CompLogLevelWarn,
- "SmcOpenConnection failed: %s",
- errorBuffer);
- else
- {
- connected = true;
- if (prevClientId)
- smPrevClientId = strdup (prevClientId);
- }
- }
-}
-
-void
-CompSession::close ()
-{
- if (connected)
- {
- setRestartStyle (smcConnection, SmRestartIfRunning);
-
- if (SmcCloseConnection (smcConnection, 0, NULL) != SmcConnectionInUse)
- connected = false;
-
- if (smClientId)
- {
- free (smClientId);
- smClientId = NULL;
- }
- if (smPrevClientId)
- {
- free (smPrevClientId);
- smPrevClientId = NULL;
- }
- }
-}
-
-CompString
-CompSession::getClientId (CompSession::ClientIdType type)
-{
- if (!connected)
- return "";
-
- switch (type) {
- case CompSession::ClientId:
- if (smClientId)
- return smClientId;
- case CompSession::PrevClientId:
- if (smPrevClientId)
- return smPrevClientId;
- }
-
- return "";
-}
-/* ice connection handling taken and updated from gnome-ice.c
- * original gnome-ice.c code written by Tom Tromey <tromey@cygnus.com>
- */
-
-/* This is called when data is available on an ICE connection. */
-static bool
-iceProcessMessages (IceConn connection)
-{
- IceProcessMessagesStatus status;
-
- SM_DEBUG (printf ("ICE connection process messages\n"));
-
- status = IceProcessMessages (connection, NULL, NULL);
-
- if (status == IceProcessMessagesIOError)
- {
- SM_DEBUG (printf ("ICE connection process messages"
- " - error => shutting down the connection\n"));
-
- IceSetShutdownNegotiation (connection, False);
- IceCloseConnection (connection);
- }
-
- return 1;
-}
-
-/* This is called when a new ICE connection is made. It arranges for
- the ICE connection to be handled via the event loop. */
-static void
-iceNewConnection (IceConn connection,
- IcePointer clientData,
- Bool opening,
- IcePointer *watchData)
-{
- if (opening)
- {
- SM_DEBUG (printf ("ICE connection opening\n"));
-
- /* Make sure we don't pass on these file descriptors to any
- exec'ed children */
- fcntl (IceConnectionNumber (connection), F_SETFD,
- fcntl (IceConnectionNumber (connection),
- F_GETFD,0) | FD_CLOEXEC);
-
- iceWatchFdHandle = screen->addWatchFd (IceConnectionNumber (connection),
- POLLIN | POLLPRI | POLLHUP | POLLERR,
- boost::bind (iceProcessMessages, connection));
-
- iceConnected = true;
- }
- else
- {
- SM_DEBUG (printf ("ICE connection closing\n"));
-
- if (iceConnected)
- {
- screen->removeWatchFd (iceWatchFdHandle);
-
- iceWatchFdHandle = 0;
- iceConnected = false;
- }
- }
-}
-
-static IceIOErrorHandler oldIceHandler;
-
-static void
-iceErrorHandler (IceConn connection)
-{
- if (oldIceHandler)
- (*oldIceHandler) (connection);
-}
-
-/* We call any handler installed before (or after) iceInit but
- avoid calling the default libICE handler which does an exit() */
-static void
-iceInit (void)
-{
- static bool iceInitialized = false;
-
- if (!iceInitialized)
- {
- IceIOErrorHandler defaultIceHandler;
-
- oldIceHandler = IceSetIOErrorHandler (NULL);
- defaultIceHandler = IceSetIOErrorHandler (iceErrorHandler);
-
- if (oldIceHandler == defaultIceHandler)
- oldIceHandler = NULL;
-
- IceAddConnectionWatch (iceNewConnection, NULL);
-
- iceInitialized = true;
- }
-}
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