diff options
Diffstat (limited to 'src/modules/x11/module-x11-xsmp.c')
| -rw-r--r-- | src/modules/x11/module-x11-xsmp.c | 254 |
1 files changed, 254 insertions, 0 deletions
diff --git a/src/modules/x11/module-x11-xsmp.c b/src/modules/x11/module-x11-xsmp.c new file mode 100644 index 00000000..28fd373a --- /dev/null +++ b/src/modules/x11/module-x11-xsmp.c @@ -0,0 +1,254 @@ +/*** + This file is part of PulseAudio. + + Copyright 2004-2006 Lennart Poettering + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as published + by the Free Software Foundation; either version 2.1 of the License, + or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> + +#include <X11/Xlib.h> +#include <X11/SM/SMlib.h> + +#include <pulse/xmalloc.h> +#include <pulse/util.h> + +#include <pulsecore/iochannel.h> +#include <pulsecore/sink.h> +#include <pulsecore/core-scache.h> +#include <pulsecore/modargs.h> +#include <pulsecore/namereg.h> +#include <pulsecore/log.h> +#include <pulsecore/core-util.h> +#include <pulsecore/x11wrap.h> + +#include "module-x11-xsmp-symdef.h" + +PA_MODULE_AUTHOR("Lennart Poettering"); +PA_MODULE_DESCRIPTION("X11 session management"); +PA_MODULE_VERSION(PACKAGE_VERSION); +PA_MODULE_LOAD_ONCE(FALSE); +PA_MODULE_USAGE("session_manager=<session manager string> display=<X11 display>"); + +static pa_bool_t ice_in_use = FALSE; + +static const char* const valid_modargs[] = { + "session_manager", + "display", + NULL +}; + +struct userdata { + pa_core *core; + pa_module *module; + pa_client *client; + SmcConn connection; + pa_x11_wrapper *x11; +}; + +static void die_cb(SmcConn connection, SmPointer client_data){ + struct userdata *u = client_data; + pa_assert(u); + + pa_log_debug("Got die message from XSMP."); + + pa_x11_wrapper_kill(u->x11); + + pa_x11_wrapper_unref(u->x11); + u->x11 = NULL; + + pa_module_unload_request(u->module, TRUE); +} + +static void save_complete_cb(SmcConn connection, SmPointer client_data) { +} + +static void shutdown_cancelled_cb(SmcConn connection, SmPointer client_data) { + SmcSaveYourselfDone(connection, True); +} + +static void save_yourself_cb(SmcConn connection, SmPointer client_data, int save_type, Bool _shutdown, int interact_style, Bool fast) { + SmcSaveYourselfDone(connection, True); +} + +static void ice_io_cb(pa_mainloop_api*a, pa_io_event *e, int fd, pa_io_event_flags_t flags, void *userdata) { + IceConn connection = userdata; + + if (IceProcessMessages(connection, NULL, NULL) == IceProcessMessagesIOError) { + IceSetShutdownNegotiation(connection, False); + IceCloseConnection(connection); + } +} + +static void new_ice_connection(IceConn connection, IcePointer client_data, Bool opening, IcePointer *watch_data) { + struct pa_core *c = client_data; + + if (opening) + *watch_data = c->mainloop->io_new( + c->mainloop, + IceConnectionNumber(connection), + PA_IO_EVENT_INPUT, + ice_io_cb, + connection); + else + c->mainloop->io_free(*watch_data); +} + +int pa__init(pa_module*m) { + + pa_modargs *ma = NULL; + char t[256], *vendor, *client_id; + SmcCallbacks callbacks; + SmProp prop_program, prop_user; + SmProp *prop_list[2]; + SmPropValue val_program, val_user; + struct userdata *u; + const char *e; + pa_client_new_data data; + + pa_assert(m); + + if (ice_in_use) { + pa_log("module-x11-xsmp may no be loaded twice."); + return -1; + } + + IceAddConnectionWatch(new_ice_connection, m->core); + ice_in_use = TRUE; + + m->userdata = u = pa_xnew(struct userdata, 1); + u->core = m->core; + u->module = m; + u->client = NULL; + u->connection = NULL; + u->x11 = NULL; + + if (!(ma = pa_modargs_new(m->argument, valid_modargs))) { + pa_log("Failed to parse module arguments"); + goto fail; + } + + if (!(u->x11 = pa_x11_wrapper_get(m->core, pa_modargs_get_value(ma, "display", NULL)))) + goto fail; + + e = pa_modargs_get_value(ma, "session_manager", NULL); + + if (!e && !getenv("SESSION_MANAGER")) { + pa_log("X11 session manager not running."); + goto fail; + } + + memset(&callbacks, 0, sizeof(callbacks)); + callbacks.die.callback = die_cb; + callbacks.die.client_data = u; + callbacks.save_yourself.callback = save_yourself_cb; + callbacks.save_yourself.client_data = m->core; + callbacks.save_complete.callback = save_complete_cb; + callbacks.save_complete.client_data = m->core; + callbacks.shutdown_cancelled.callback = shutdown_cancelled_cb; + callbacks.shutdown_cancelled.client_data = m->core; + + if (!(u->connection = SmcOpenConnection( + (char*) e, m->core, + SmProtoMajor, SmProtoMinor, + SmcSaveYourselfProcMask | SmcDieProcMask | SmcSaveCompleteProcMask | SmcShutdownCancelledProcMask, + &callbacks, NULL, &client_id, + sizeof(t), t))) { + + pa_log("Failed to open connection to session manager: %s", t); + goto fail; + } + + prop_program.name = (char*) SmProgram; + prop_program.type = (char*) SmARRAY8; + val_program.value = (char*) PACKAGE_NAME; + val_program.length = (int) strlen(val_program.value); + prop_program.num_vals = 1; + prop_program.vals = &val_program; + prop_list[0] = &prop_program; + + prop_user.name = (char*) SmUserID; + prop_user.type = (char*) SmARRAY8; + pa_get_user_name(t, sizeof(t)); + val_user.value = t; + val_user.length = (int) strlen(val_user.value); + prop_user.num_vals = 1; + prop_user.vals = &val_user; + prop_list[1] = &prop_user; + + SmcSetProperties(u->connection, PA_ELEMENTSOF(prop_list), prop_list); + + pa_log_info("Connected to session manager '%s' as '%s'.", vendor = SmcVendor(u->connection), client_id); + + pa_client_new_data_init(&data); + data.module = m; + data.driver = __FILE__; + pa_proplist_setf(data.proplist, PA_PROP_APPLICATION_NAME, "XSMP Session on %s as %s", vendor, client_id); + pa_proplist_sets(data.proplist, "xsmp.vendor", vendor); + pa_proplist_sets(data.proplist, "xsmp.client.id", client_id); + u->client = pa_client_new(u->core, &data); + pa_client_new_data_done(&data); + + free(vendor); + free(client_id); + + if (!u->client) + goto fail; + + pa_modargs_free(ma); + + return 0; + +fail: + if (ma) + pa_modargs_free(ma); + + pa__done(m); + + return -1; +} + +void pa__done(pa_module*m) { + struct userdata *u; + + pa_assert(m); + + if ((u = m->userdata)) { + + if (u->connection) + SmcCloseConnection(u->connection, 0, NULL); + + if (u->client) + pa_client_free(u->client); + + if (u->x11) + pa_x11_wrapper_unref(u->x11); + + pa_xfree(u); + } + + if (ice_in_use) { + IceRemoveConnectionWatch(new_ice_connection, m->core); + ice_in_use = FALSE; + } +} |