diff options
Diffstat (limited to 'src/modules/dbus-util.c')
-rw-r--r-- | src/modules/dbus-util.c | 285 |
1 files changed, 133 insertions, 152 deletions
diff --git a/src/modules/dbus-util.c b/src/modules/dbus-util.c index 48a45174..fc1e91ea 100644 --- a/src/modules/dbus-util.c +++ b/src/modules/dbus-util.c @@ -26,25 +26,25 @@ #include <config.h> #endif -#include <assert.h> -#include <pulsecore/log.h> -#include <pulsecore/props.h> #include <pulse/xmalloc.h> #include <pulse/timeval.h> +#include <pulsecore/log.h> +#include <pulsecore/props.h> #include "dbus-util.h" struct pa_dbus_connection { - int refcount; + PA_REFCNT_DECLARE; + pa_core *core; DBusConnection *connection; const char *property_name; pa_defer_event* dispatch_event; }; -static void dispatch_cb(pa_mainloop_api *ea, pa_defer_event *ev, void *userdata) -{ - DBusConnection *conn = (DBusConnection *) userdata; +static void dispatch_cb(pa_mainloop_api *ea, pa_defer_event *ev, void *userdata) { + DBusConnection *conn = userdata; + if (dbus_connection_dispatch(conn) == DBUS_DISPATCH_COMPLETE) { /* no more data to process, disable the deferred */ ea->defer_enable(ev, 0); @@ -52,14 +52,17 @@ static void dispatch_cb(pa_mainloop_api *ea, pa_defer_event *ev, void *userdata) } /* DBusDispatchStatusFunction callback for the pa mainloop */ -static void dispatch_status(DBusConnection *conn, DBusDispatchStatus status, - void *userdata) -{ - pa_dbus_connection *c = (pa_dbus_connection*) userdata; +static void dispatch_status(DBusConnection *conn, DBusDispatchStatus status, void *userdata) { + pa_dbus_connection *c = userdata; + + pa_assert(c); + switch(status) { + case DBUS_DISPATCH_COMPLETE: c->core->mainloop->defer_enable(c->dispatch_event, 0); break; + case DBUS_DISPATCH_DATA_REMAINS: case DBUS_DISPATCH_NEED_MEMORY: default: @@ -68,11 +71,13 @@ static void dispatch_status(DBusConnection *conn, DBusDispatchStatus status, } } -static pa_io_event_flags_t -get_watch_flags(DBusWatch *watch) -{ - unsigned int flags = dbus_watch_get_flags(watch); - pa_io_event_flags_t events = PA_IO_EVENT_HANGUP | PA_IO_EVENT_ERROR; +static pa_io_event_flags_t get_watch_flags(DBusWatch *watch) { + unsigned int flags; + pa_io_event_flags_t events = 0; + + pa_assert(watch); + + flags = dbus_watch_get_flags(watch); /* no watch flags for disabled watches */ if (!dbus_watch_get_enabled(watch)) @@ -83,21 +88,22 @@ get_watch_flags(DBusWatch *watch) if (flags & DBUS_WATCH_WRITABLE) events |= PA_IO_EVENT_OUTPUT; - return events; + return events | PA_IO_EVENT_HANGUP | PA_IO_EVENT_ERROR; } /* pa_io_event_cb_t IO event handler */ -static void handle_io_event(PA_GCC_UNUSED pa_mainloop_api *ea, pa_io_event *e, - int fd, pa_io_event_flags_t events, void *userdata) -{ +static void handle_io_event(PA_GCC_UNUSED pa_mainloop_api *ea, pa_io_event *e, int fd, pa_io_event_flags_t events, void *userdata) { unsigned int flags = 0; - DBusWatch *watch = (DBusWatch*) userdata; + DBusWatch *watch = userdata; - assert(fd == dbus_watch_get_fd(watch)); +#if HAVE_DBUS_WATCH_GET_UNIX_FD + pa_assert(fd == dbus_watch_get_unix_fd(watch)); +#else + pa_assert(fd == dbus_watch_get_fd(watch)); +#endif if (!dbus_watch_get_enabled(watch)) { - pa_log_warn("Asked to handle disabled watch: %p %i", - (void *) watch, fd); + pa_log_warn("Asked to handle disabled watch: %p %i", (void*) watch, fd); return; } @@ -114,10 +120,8 @@ static void handle_io_event(PA_GCC_UNUSED pa_mainloop_api *ea, pa_io_event *e, } /* pa_time_event_cb_t timer event handler */ -static void handle_time_event(pa_mainloop_api *ea, pa_time_event* e, - const struct timeval *tv, void *userdata) -{ - DBusTimeout *timeout = (DBusTimeout*) userdata; +static void handle_time_event(pa_mainloop_api *ea, pa_time_event* e, const struct timeval *tv, void *userdata) { + DBusTimeout *timeout = userdata; if (dbus_timeout_get_enabled(timeout)) { struct timeval next = *tv; @@ -130,218 +134,195 @@ static void handle_time_event(pa_mainloop_api *ea, pa_time_event* e, } /* DBusAddWatchFunction callback for pa mainloop */ -static dbus_bool_t add_watch(DBusWatch *watch, void *data) -{ +static dbus_bool_t add_watch(DBusWatch *watch, void *data) { + pa_core *c = PA_CORE(data); pa_io_event *ev; - pa_core *c = (pa_core*) data; - ev = c->mainloop->io_new(c->mainloop, dbus_watch_get_fd(watch), - get_watch_flags(watch), - handle_io_event, (void*) watch); - if (NULL == ev) - return FALSE; + pa_assert(watch); + pa_assert(c); - /* dbus_watch_set_data(watch, (void*) ev, c->mainloop->io_free); */ - dbus_watch_set_data(watch, (void*) ev, NULL); + ev = c->mainloop->io_new( + c->mainloop, +#if HAVE_DBUS_WATCH_GET_UNIX_FD + dbus_watch_get_unix_fd(watch), +#else + dbus_watch_get_fd(watch), +#endif + get_watch_flags(watch), handle_io_event, watch); + + dbus_watch_set_data(watch, ev, NULL); return TRUE; } /* DBusRemoveWatchFunction callback for pa mainloop */ -static void remove_watch(DBusWatch *watch, void *data) -{ - pa_core *c = (pa_core*) data; - pa_io_event *ev = (pa_io_event*) dbus_watch_get_data(watch); +static void remove_watch(DBusWatch *watch, void *data) { + pa_core *c = PA_CORE(data); + pa_io_event *ev; - /* free the event */ - if (NULL != ev) + pa_assert(watch); + pa_assert(c); + + if ((ev = dbus_watch_get_data(watch))) c->mainloop->io_free(ev); } /* DBusWatchToggledFunction callback for pa mainloop */ -static void toggle_watch(DBusWatch *watch, void *data) -{ - pa_core *c = (pa_core*) data; - pa_io_event *ev = (pa_io_event*) dbus_watch_get_data(watch); +static void toggle_watch(DBusWatch *watch, void *data) { + pa_core *c = PA_CORE(data); + pa_io_event *ev; + + pa_assert(watch); + pa_core_assert_ref(c); + + pa_assert_se(ev = dbus_watch_get_data(watch)); /* get_watch_flags() checks if the watch is enabled */ c->mainloop->io_enable(ev, get_watch_flags(watch)); } /* DBusAddTimeoutFunction callback for pa mainloop */ -static dbus_bool_t add_timeout(DBusTimeout *timeout, void *data) -{ - struct timeval tv; +static dbus_bool_t add_timeout(DBusTimeout *timeout, void *data) { + pa_core *c = PA_CORE(data); pa_time_event *ev; - pa_core *c = (pa_core*) data; + struct timeval tv; + + pa_assert(timeout); + pa_assert(c); if (!dbus_timeout_get_enabled(timeout)) return FALSE; - if (!pa_gettimeofday(&tv)) - return -1; - + pa_gettimeofday(&tv); pa_timeval_add(&tv, dbus_timeout_get_interval(timeout) * 1000); - ev = c->mainloop->time_new(c->mainloop, &tv, handle_time_event, - (void*) timeout); - if (NULL == ev) - return FALSE; + ev = c->mainloop->time_new(c->mainloop, &tv, handle_time_event, timeout); - /* dbus_timeout_set_data(timeout, (void*) ev, c->mainloop->time_free); */ - dbus_timeout_set_data(timeout, (void*) ev, NULL); + dbus_timeout_set_data(timeout, ev, NULL); return TRUE; } /* DBusRemoveTimeoutFunction callback for pa mainloop */ -static void remove_timeout(DBusTimeout *timeout, void *data) -{ - pa_core *c = (pa_core*) data; - pa_time_event *ev = (pa_time_event*) dbus_timeout_get_data(timeout); +static void remove_timeout(DBusTimeout *timeout, void *data) { + pa_core *c = PA_CORE(data); + pa_time_event *ev; + + pa_assert(timeout); + pa_assert(c); - /* free the event */ - if (NULL != ev) + if ((ev = dbus_timeout_get_data(timeout))) c->mainloop->time_free(ev); } /* DBusTimeoutToggledFunction callback for pa mainloop */ -static void toggle_timeout(DBusTimeout *timeout, void *data) -{ - struct timeval tv; - pa_core *c = (pa_core*) data; - pa_time_event *ev = (pa_time_event*) dbus_timeout_get_data(timeout); +static void toggle_timeout(DBusTimeout *timeout, void *data) { + pa_core *c = PA_CORE(data); + pa_time_event *ev; + + pa_assert(timeout); + pa_assert(c); + + pa_assert_se(ev = dbus_timeout_get_data(timeout)); if (dbus_timeout_get_enabled(timeout)) { + struct timeval tv; + pa_gettimeofday(&tv); pa_timeval_add(&tv, dbus_timeout_get_interval(timeout) * 1000); + c->mainloop->time_restart(ev, &tv); - } else { - /* disable the timeout */ + } else c->mainloop->time_restart(ev, NULL); - } } -static void -pa_dbus_connection_free(pa_dbus_connection *c) -{ - assert(c); - assert(!dbus_connection_get_is_connected(c->connection)); +static void wakeup_main(void *userdata) { + pa_dbus_connection *c = userdata; - /* already disconnected, just free */ - pa_property_remove(c->core, c->property_name); - c->core->mainloop->defer_free(c->dispatch_event); - dbus_connection_unref(c->connection); - pa_xfree(c); -} + pa_assert(c); -static void -wakeup_main(void *userdata) -{ - pa_dbus_connection *c = (pa_dbus_connection*) userdata; /* this will wakeup the mainloop and dispatch events, although * it may not be the cleanest way of accomplishing it */ c->core->mainloop->defer_enable(c->dispatch_event, 1); } -static pa_dbus_connection* pa_dbus_connection_new(pa_core* c, DBusConnection *conn, const char* name) -{ - pa_dbus_connection *pconn = pa_xnew(pa_dbus_connection, 1); +static pa_dbus_connection* pa_dbus_connection_new(pa_core* c, DBusConnection *conn, const char* name) { + pa_dbus_connection *pconn; - pconn->refcount = 1; + pconn = pa_xnew(pa_dbus_connection, 1); + PA_REFCNT_INIT(pconn); pconn->core = c; pconn->property_name = name; pconn->connection = conn; - pconn->dispatch_event = c->mainloop->defer_new(c->mainloop, dispatch_cb, - (void*) conn); + pconn->dispatch_event = c->mainloop->defer_new(c->mainloop, dispatch_cb, conn); pa_property_set(c, name, pconn); return pconn; } -DBusConnection* pa_dbus_connection_get(pa_dbus_connection *c) -{ - assert(c && c->connection); +DBusConnection* pa_dbus_connection_get(pa_dbus_connection *c){ + pa_assert(c); + pa_assert(PA_REFCNT_VALUE(c) > 0); + pa_assert(c->connection); + return c->connection; } -void pa_dbus_connection_unref(pa_dbus_connection *c) -{ - assert(c); +void pa_dbus_connection_unref(pa_dbus_connection *c) { + pa_assert(c); + pa_assert(PA_REFCNT_VALUE(c) > 0); - /* non-zero refcount, still outstanding refs */ - if (--(c->refcount)) + if (PA_REFCNT_DEC(c) > 0) return; - /* refcount is zero */ if (dbus_connection_get_is_connected(c->connection)) { - /* disconnect as we have no more internal references */ dbus_connection_close(c->connection); - /* must process remaining messages, bit of a kludge to - * handle both unload and shutdown */ - while(dbus_connection_read_write_dispatch(c->connection, -1)); + /* must process remaining messages, bit of a kludge to handle + * both unload and shutdown */ + while (dbus_connection_read_write_dispatch(c->connection, -1)); } - pa_dbus_connection_free(c); + + /* already disconnected, just free */ + pa_property_remove(c->core, c->property_name); + c->core->mainloop->defer_free(c->dispatch_event); + dbus_connection_unref(c->connection); + pa_xfree(c); } -pa_dbus_connection* pa_dbus_connection_ref(pa_dbus_connection *c) -{ - assert(c); +pa_dbus_connection* pa_dbus_connection_ref(pa_dbus_connection *c) { + pa_assert(c); + pa_assert(PA_REFCNT_VALUE(c) > 0); - ++(c->refcount); + PA_REFCNT_INC(c); return c; } -pa_dbus_connection* pa_dbus_bus_get(pa_core *c, DBusBusType type, - DBusError *error) -{ - const char* name; +pa_dbus_connection* pa_dbus_bus_get(pa_core *c, DBusBusType type, DBusError *error) { + + static const char *const prop_name[] = { + [DBUS_BUS_SESSION] = "dbus-connection-session", + [DBUS_BUS_SYSTEM] = "dbus-connection-system", + [DBUS_BUS_STARTER] = "dbus-connection-starter" + }; DBusConnection *conn; pa_dbus_connection *pconn; - switch (type) { - case DBUS_BUS_SYSTEM: - name = "dbus-connection-system"; - break; - case DBUS_BUS_SESSION: - name = "dbus-connection-session"; - break; - case DBUS_BUS_STARTER: - name = "dbus-connection-starter"; - break; - default: - assert(0); /* never reached */ - break; - } + pa_assert(type == DBUS_BUS_SYSTEM || type == DBUS_BUS_SESSION || type == DBUS_BUS_STARTER); - if ((pconn = pa_property_get(c, name))) + if ((pconn = pa_property_get(c, prop_name[type]))) return pa_dbus_connection_ref(pconn); - /* else */ - conn = dbus_bus_get_private(type, error); - if (conn == NULL || dbus_error_is_set(error)) { + if (!(conn = dbus_bus_get_private(type, error))) return NULL; - } - pconn = pa_dbus_connection_new(c, conn, name); + pconn = pa_dbus_connection_new(c, conn, prop_name[type]); - /* don't exit on disconnect */ dbus_connection_set_exit_on_disconnect(conn, FALSE); - /* set up the DBUS call backs */ - dbus_connection_set_dispatch_status_function(conn, dispatch_status, - (void*) pconn, NULL); - dbus_connection_set_watch_functions(conn, - add_watch, - remove_watch, - toggle_watch, - (void*) c, NULL); - dbus_connection_set_timeout_functions(conn, - add_timeout, - remove_timeout, - toggle_timeout, - (void*) c, NULL); + dbus_connection_set_dispatch_status_function(conn, dispatch_status, pconn, NULL); + dbus_connection_set_watch_functions(conn, add_watch, remove_watch, toggle_watch, c, NULL); + dbus_connection_set_timeout_functions(conn, add_timeout, remove_timeout, toggle_timeout, c, NULL); dbus_connection_set_wakeup_main_function(conn, wakeup_main, pconn, NULL); return pconn; |