pa_operation *pa_ext_device_manager_subscribe( pa_context *c, int enable, pa_context_success_cb_t cb, void *userdata) { uint32_t tag; pa_operation *o; pa_tagstruct *t; pa_assert(c); pa_assert(PA_REFCNT_VALUE(c) >= 1); PA_CHECK_VALIDITY_RETURN_NULL(c, !pa_detect_fork(), PA_ERR_FORKED); PA_CHECK_VALIDITY_RETURN_NULL(c, c->state == PA_CONTEXT_READY, PA_ERR_BADSTATE); PA_CHECK_VALIDITY_RETURN_NULL(c, c->version >= 14, PA_ERR_NOTSUPPORTED); o = pa_operation_new(c, NULL, (pa_operation_cb_t) cb, userdata); t = pa_tagstruct_command(c, PA_COMMAND_EXTENSION, &tag); pa_tagstruct_putu32(t, PA_INVALID_INDEX); pa_tagstruct_puts(t, "module-device-manager"); pa_tagstruct_putu32(t, SUBCOMMAND_SUBSCRIBE); pa_tagstruct_put_boolean(t, enable); pa_pstream_send_tagstruct(c->pstream, t); pa_pdispatch_register_reply(c->pdispatch, tag, DEFAULT_TIMEOUT, pa_context_simple_ack_callback, pa_operation_ref(o), (pa_free_cb_t) pa_operation_unref); return o; }
pa_operation *pa_ext_stream_restore_write( pa_context *c, pa_update_mode_t mode, const pa_ext_stream_restore_info data[], unsigned n, int apply_immediately, pa_context_success_cb_t cb, void *userdata) { uint32_t tag; pa_operation *o = NULL; pa_tagstruct *t = NULL; pa_assert(c); pa_assert(PA_REFCNT_VALUE(c) >= 1); pa_assert(mode == PA_UPDATE_MERGE || mode == PA_UPDATE_REPLACE || mode == PA_UPDATE_SET); pa_assert(data); PA_CHECK_VALIDITY_RETURN_NULL(c, !pa_detect_fork(), PA_ERR_FORKED); PA_CHECK_VALIDITY_RETURN_NULL(c, c->state == PA_CONTEXT_READY, PA_ERR_BADSTATE); PA_CHECK_VALIDITY_RETURN_NULL(c, c->version >= 14, PA_ERR_NOTSUPPORTED); o = pa_operation_new(c, NULL, (pa_operation_cb_t) cb, userdata); t = pa_tagstruct_command(c, PA_COMMAND_EXTENSION, &tag); pa_tagstruct_putu32(t, PA_INVALID_INDEX); pa_tagstruct_puts(t, "module-stream-restore"); pa_tagstruct_putu32(t, SUBCOMMAND_WRITE); pa_tagstruct_putu32(t, mode); pa_tagstruct_put_boolean(t, apply_immediately); for (; n > 0; n--, data++) { if (!data->name || !*data->name) goto fail; pa_tagstruct_puts(t, data->name); if (data->volume.channels > 0 && !pa_cvolume_compatible_with_channel_map(&data->volume, &data->channel_map)) goto fail; pa_tagstruct_put_channel_map(t, &data->channel_map); pa_tagstruct_put_cvolume(t, &data->volume); pa_tagstruct_puts(t, data->device); pa_tagstruct_put_boolean(t, data->mute); } pa_pstream_send_tagstruct(c->pstream, t); pa_pdispatch_register_reply(c->pdispatch, tag, DEFAULT_TIMEOUT, pa_context_simple_ack_callback, pa_operation_ref(o), (pa_free_cb_t) pa_operation_unref); return o; fail: pa_operation_cancel(o); pa_operation_unref(o); pa_tagstruct_free(t); pa_context_set_error(c, PA_ERR_INVALID); return NULL; }