mirror of
https://gitlab.freedesktop.org/pipewire/pipewire.git
synced 2025-11-07 13:30:09 -05:00
improve error handling
Set errno for functions returning NULL if relevant. Propagate errno and result codes better. Handle more error cases.
This commit is contained in:
Wim Taymans
parent
0a5bce4a3b
commit
504d78cd18
26 changed files with 359 additions and 148 deletions
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@ -286,6 +286,7 @@ impl_get_connection(void *object,
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struct impl *impl = object;
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struct connection *conn;
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DBusError error;
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int res;
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dbus_error_init(&error);
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@ -298,6 +299,8 @@ impl_get_connection(void *object,
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conn->dispatch_event = spa_loop_utils_add_idle(impl->utils,
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false, dispatch_cb, conn);
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if (conn->dispatch_event == NULL)
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goto no_event;
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dbus_connection_set_exit_on_disconnect(conn->conn, false);
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dbus_connection_set_dispatch_status_function(conn->conn, dispatch_status, conn, NULL);
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@ -314,7 +317,19 @@ impl_get_connection(void *object,
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error:
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spa_log_error(impl->log, "Failed to connect to system bus: %s", error.message);
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dbus_error_free(&error);
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res = -ECONNREFUSED;
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goto out_free;
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no_event:
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res = -errno;
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spa_log_error(impl->log, "Failed to create idle event: %m");
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goto out_unref_dbus;
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out_unref_dbus:
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dbus_connection_close(conn->conn);
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dbus_connection_unref(conn->conn);
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out_free:
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free(conn);
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errno = -res;
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return NULL;
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}
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@ -232,6 +232,20 @@ impl_init(const struct spa_handle_factory *factory,
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break;
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}
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}
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if (loop != NULL && this->system != NULL) {
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this->source.func = on_trace_event;
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this->source.data = this;
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this->source.fd = spa_system_eventfd_create(this->system, SPA_FD_CLOEXEC | SPA_FD_NONBLOCK);
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this->source.mask = SPA_IO_IN;
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this->source.rmask = 0;
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if (this->source.fd != -1) {
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spa_loop_add_source(loop, &this->source);
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this->have_source = true;
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} else {
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fprintf(stderr, "Warning: failed to create eventfd: %m");
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}
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}
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if (info) {
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if ((str = spa_dict_lookup(info, SPA_KEY_LOG_COLORS)) != NULL)
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this->colors = (strcmp(str, "true") == 0 || atoi(str) == 1);
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@ -240,22 +254,12 @@ impl_init(const struct spa_handle_factory *factory,
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if ((str = spa_dict_lookup(info, SPA_KEY_LOG_FILE)) != NULL) {
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this->file = fopen(str, "w");
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if (this->file == NULL)
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fprintf(stderr, "failed to open file %s: (%s)", str, strerror(errno));
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fprintf(stderr, "Warning: failed to open file %s: (%m)", str);
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}
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}
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if (this->file == NULL)
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this->file = stderr;
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if (loop != NULL && this->system != NULL) {
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this->source.func = on_trace_event;
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this->source.data = this;
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this->source.fd = spa_system_eventfd_create(this->system, SPA_FD_CLOEXEC | SPA_FD_NONBLOCK);
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this->source.mask = SPA_IO_IN;
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this->source.rmask = 0;
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spa_loop_add_source(loop, &this->source);
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this->have_source = true;
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}
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spa_ringbuffer_init(&this->trace_rb);
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spa_log_debug(&this->log, NAME " %p: initialized", this);
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@ -290,8 +294,8 @@ impl_enum_interface_info(const struct spa_handle_factory *factory,
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const struct spa_handle_factory spa_support_logger_factory = {
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SPA_VERSION_HANDLE_FACTORY,
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NAME,
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NULL,
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.name = NAME,
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.info = NULL,
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.get_size = impl_get_size,
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.init = impl_init,
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.enum_interface_info = impl_enum_interface_info,
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@ -280,18 +280,18 @@ static int loop_iterate(void *object, int timeout)
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struct impl *impl = object;
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struct spa_loop *loop = &impl->loop;
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struct spa_poll_event ep[32];
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int i, nfds, save_errno = 0;
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int i, nfds, res = 0;
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spa_loop_control_hook_before(&impl->hooks_list);
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nfds = spa_system_pollfd_wait(impl->system, impl->poll_fd, ep, SPA_N_ELEMENTS(ep), timeout);
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if (SPA_UNLIKELY(nfds < 0))
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save_errno = errno;
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res = -errno;
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spa_loop_control_hook_after(&impl->hooks_list);
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if (SPA_UNLIKELY(nfds < 0))
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return save_errno;
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return -res;
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/* first we set all the rmasks, then call the callbacks. The reason is that
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* some callback might also want to look at other sources it manages and
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@ -323,10 +323,11 @@ static struct spa_source *loop_add_io(void *object,
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{
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struct impl *impl = object;
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struct source_impl *source;
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struct spa_source *res = NULL;
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source = calloc(1, sizeof(struct source_impl));
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if (source == NULL)
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return NULL;
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goto out;
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source->source.loop = &impl->loop;
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source->source.func = source_io_func;
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@ -341,7 +342,9 @@ static struct spa_source *loop_add_io(void *object,
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spa_list_insert(&impl->source_list, &source->link);
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return &source->source;
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res = &source->source;
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out:
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return res;
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}
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static int loop_update_io(void *object, struct spa_source *source, uint32_t mask)
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@ -380,15 +383,22 @@ static struct spa_source *loop_add_idle(void *object,
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{
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struct impl *impl = object;
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struct source_impl *source;
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struct spa_source *res = NULL;
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int err;
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source = calloc(1, sizeof(struct source_impl));
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if (source == NULL)
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return NULL;
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goto out;
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source->source.loop = &impl->loop;
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source->source.func = source_idle_func;
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source->source.data = data;
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source->source.fd = spa_system_eventfd_create(impl->system, SPA_FD_CLOEXEC | SPA_FD_NONBLOCK);
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if (source->source.fd == -1) {
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err = -errno;
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goto err_free;
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}
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source->impl = impl;
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source->close = true;
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source->source.mask = SPA_IO_IN;
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@ -401,7 +411,14 @@ static struct spa_source *loop_add_idle(void *object,
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if (enabled)
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loop_enable_idle(impl, &source->source, true);
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return &source->source;
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res = &source->source;
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out:
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return res;
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err_free:
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free(source);
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errno = -err;
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goto out;
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}
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static void source_event_func(struct spa_source *source)
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@ -422,15 +439,21 @@ static struct spa_source *loop_add_event(void *object,
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{
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struct impl *impl = object;
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struct source_impl *source;
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struct spa_source *res = NULL;
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int err;
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source = calloc(1, sizeof(struct source_impl));
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if (source == NULL)
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return NULL;
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goto out;
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source->source.loop = &impl->loop;
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source->source.func = source_event_func;
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source->source.data = data;
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source->source.fd = spa_system_eventfd_create(impl->system, SPA_FD_CLOEXEC | SPA_FD_NONBLOCK);
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if (source->source.fd == -1) {
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err = -errno;
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goto err_free;
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}
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source->source.mask = SPA_IO_IN;
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source->impl = impl;
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source->close = true;
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@ -440,7 +463,15 @@ static struct spa_source *loop_add_event(void *object,
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spa_list_insert(&impl->source_list, &source->link);
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return &source->source;
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res = &source->source;
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out:
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return res;
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err_free:
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free(source);
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errno = -err;
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goto out;
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}
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static void loop_signal_event(void *object, struct spa_source *source)
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@ -472,16 +503,22 @@ static struct spa_source *loop_add_timer(void *object,
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{
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struct impl *impl = object;
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struct source_impl *source;
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struct spa_source *res = NULL;
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int err;
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source = calloc(1, sizeof(struct source_impl));
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if (source == NULL)
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return NULL;
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goto out;
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source->source.loop = &impl->loop;
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source->source.func = source_timer_func;
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source->source.data = data;
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source->source.fd = spa_system_timerfd_create(impl->system, CLOCK_MONOTONIC,
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SPA_FD_CLOEXEC | SPA_FD_NONBLOCK);
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if (source->source.fd == -1) {
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err = -errno;
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goto err_free;
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}
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source->source.mask = SPA_IO_IN;
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source->impl = impl;
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source->close = true;
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@ -491,7 +528,14 @@ static struct spa_source *loop_add_timer(void *object,
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spa_list_insert(&impl->source_list, &source->link);
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return &source->source;
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res = &source->source;
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out:
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return res;
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err_free:
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free(source);
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errno = -err;
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goto out;
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}
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static int
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@ -538,10 +582,12 @@ static struct spa_source *loop_add_signal(void *object,
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{
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struct impl *impl = object;
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struct source_impl *source;
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struct spa_source *res = NULL;
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int err;
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source = calloc(1, sizeof(struct source_impl));
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if (source == NULL)
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return NULL;
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goto out;
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source->source.loop = &impl->loop;
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source->source.func = source_signal_func;
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@ -549,6 +595,10 @@ static struct spa_source *loop_add_signal(void *object,
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source->source.fd = spa_system_signalfd_create(impl->system,
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signal_number, SPA_FD_CLOEXEC | SPA_FD_NONBLOCK);
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if (source->source.fd == -1) {
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err = -errno;
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goto err_free;
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}
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source->source.mask = SPA_IO_IN;
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source->impl = impl;
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@ -559,7 +609,14 @@ static struct spa_source *loop_add_signal(void *object,
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spa_list_insert(&impl->source_list, &source->link);
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return &source->source;
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res = &source->source;
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out:
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return res;
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err_free:
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free(source);
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errno = -err;
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goto out;
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}
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static void loop_destroy_source(void *object, struct spa_source *source)
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