diff --git a/src/modules/meson.build b/src/modules/meson.build index 2e53c7301..db34cfcba 100644 --- a/src/modules/meson.build +++ b/src/modules/meson.build @@ -145,6 +145,7 @@ pipewire_module_session_manager = shared_library('pipewire-module-session-manage 'module-session-manager/client-session/client-session.c', 'module-session-manager/client-session/endpoint-link.c', 'module-session-manager/client-session/session.c', + 'module-session-manager/endpoint.c', 'module-session-manager/protocol-native.c', 'module-session-manager/proxy-session-manager.c', ], diff --git a/src/modules/module-session-manager.c b/src/modules/module-session-manager.c index 20c9af340..daca547db 100644 --- a/src/modules/module-session-manager.c +++ b/src/modules/module-session-manager.c @@ -31,6 +31,9 @@ int client_endpoint_factory_init(struct pw_impl_module *module); /* client-session.c */ int client_session_factory_init(struct pw_impl_module *module); + +int endpoint_factory_init(struct pw_impl_module *module); + /* protocol-native.c */ int pw_protocol_native_ext_session_manager_init(struct pw_context *context); @@ -51,6 +54,7 @@ int pipewire__module_init(struct pw_impl_module *module, const char *args) client_endpoint_factory_init(module); client_session_factory_init(module); + endpoint_factory_init(module); pw_impl_module_update_properties(module, &SPA_DICT_INIT_ARRAY(module_props)); diff --git a/src/modules/module-session-manager/endpoint.c b/src/modules/module-session-manager/endpoint.c new file mode 100644 index 000000000..6eba48844 --- /dev/null +++ b/src/modules/module-session-manager/endpoint.c @@ -0,0 +1,374 @@ +/* PipeWire + * + * Copyright © 2020 Collabora Ltd. + * @author George Kiagiadakis + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER + * DEALINGS IN THE SOFTWARE. + */ + +#include +#include +#include + +#define NAME "endpoint" + +struct pw_proxy *pw_core_endpoint_export(struct pw_core *core, + const char *type, const struct spa_dict *props, void *object, + size_t user_data_size); + +struct impl +{ + struct pw_global *global; + struct spa_hook global_listener; + + union { + struct pw_endpoint *endpoint; + struct pw_resource *resource; + }; + struct spa_hook resource_listener; +}; + +struct resource_data +{ + struct impl *impl; + + struct pw_resource *resource; + struct spa_hook resource_listener; + struct spa_hook object_listener; + struct spa_hook endpoint_listener; +}; + +struct factory_data +{ + struct pw_impl_factory *this; + + struct pw_impl_module *module; + struct spa_hook module_listener; + + struct pw_export_type export; +}; + +static int method_subscribe_params(void *object, uint32_t *ids, uint32_t n_ids) +{ + struct resource_data *d = object; + struct impl *impl = d->impl; + pw_endpoint_subscribe_params(impl->endpoint, ids, n_ids); + return 0; +} + +static int method_enum_params(void *object, int seq, + uint32_t id, uint32_t start, uint32_t num, + const struct spa_pod *filter) +{ + struct resource_data *d = object; + struct impl *impl = d->impl; + pw_endpoint_enum_params(impl->endpoint, seq, id, start, num, filter); + return 0; +} + +static int method_set_param(void *object, uint32_t id, uint32_t flags, + const struct spa_pod *param) +{ + struct resource_data *d = object; + struct impl *impl = d->impl; + pw_endpoint_set_param(impl->endpoint, id, flags, param); + return 0; +} + +static int method_create_link(void *object, const struct spa_dict *props) +{ + struct resource_data *d = object; + struct impl *impl = d->impl; + pw_endpoint_create_link(impl->endpoint, props); + return 0; +} + +static const struct pw_endpoint_methods endpoint_methods = { + PW_VERSION_ENDPOINT_METHODS, + .subscribe_params = method_subscribe_params, + .enum_params = method_enum_params, + .set_param = method_set_param, + .create_link = method_create_link, +}; + +#define pw_endpoint_resource(r,m,v,...) \ + pw_resource_call(r,struct pw_endpoint_events,m,v,__VA_ARGS__) + +#define pw_endpoint_resource_info(r,...) \ + pw_endpoint_resource(r,info,0,__VA_ARGS__) +#define pw_endpoint_resource_param(r,...) \ + pw_endpoint_resource(r,param,0,__VA_ARGS__) + +static void event_info(void *object, const struct pw_endpoint_info *info) +{ + struct resource_data *d = object; + pw_endpoint_resource_info(d->resource, info); +} + +static void event_param(void *object, int seq, + uint32_t id, uint32_t index, uint32_t next, + const struct spa_pod *param) +{ + struct resource_data *d = object; + pw_endpoint_resource_param (d->resource, seq, id, index, next, param); +} + +static const struct pw_endpoint_events endpoint_events = { + PW_VERSION_ENDPOINT_EVENTS, + .info = event_info, + .param = event_param, +}; + +static void global_unbind(void *data) +{ + struct resource_data *d = data; + if (d->resource) + spa_hook_remove(&d->endpoint_listener); +} + +static const struct pw_resource_events resource_events = { + PW_VERSION_RESOURCE_EVENTS, + .destroy = global_unbind, +}; + +static int global_bind(void *_data, struct pw_impl_client *client, + uint32_t permissions, uint32_t version, uint32_t id) +{ + struct impl *impl = _data; + struct pw_resource *resource; + struct resource_data *data; + + resource = pw_resource_new(client, id, permissions, + PW_TYPE_INTERFACE_Endpoint, + version, sizeof(*data)); + if (resource == NULL) + return -errno; + + data = pw_resource_get_user_data(resource); + data->impl = impl; + data->resource = resource; + + pw_global_add_resource(impl->global, resource); + + /* listen for when the resource goes away */ + pw_resource_add_listener(resource, + &data->resource_listener, + &resource_events, data); + + /* resource methods -> implemention */ + pw_resource_add_object_listener(resource, + &data->object_listener, + &endpoint_methods, data); + /* implementation events -> resource */ + pw_endpoint_add_listener(impl->endpoint, + &data->endpoint_listener, + &endpoint_events, data); + + return 0; +} + +static void global_destroy(void *data) +{ + struct impl *impl = data; + spa_hook_remove(&impl->global_listener); + impl->global = NULL; + if (impl->resource) + pw_resource_destroy(impl->resource); +} + +static const struct pw_global_events global_events = { + PW_VERSION_GLOBAL_EVENTS, + .destroy = global_destroy, +}; + +static void global_resource_destroy(void *data) +{ + struct impl *impl = data; + spa_hook_remove(&impl->resource_listener); + impl->resource = NULL; + if (impl->global) + pw_global_destroy(impl->global); +} + +static const struct pw_resource_events global_resource_events = { + PW_VERSION_RESOURCE_EVENTS, + .destroy = global_resource_destroy, +}; + +static void *endpoint_new(struct pw_context *context, + struct pw_resource *resource, + struct pw_properties *properties) +{ + struct impl *impl; + + impl = calloc(1, sizeof(*impl)); + if (impl == NULL) { + pw_properties_free(properties); + return NULL; + } + + impl->global = pw_global_new(context, + PW_TYPE_INTERFACE_Endpoint, + PW_VERSION_ENDPOINT, + properties, + global_bind, impl); + if (impl->global == NULL) { + free(impl); + return NULL; + } + impl->resource = resource; + + pw_global_add_listener(impl->global, + &impl->global_listener, + &global_events, impl); + + pw_resource_add_listener(resource, + &impl->resource_listener, + &global_resource_events, impl); + + pw_resource_set_bound_id(resource, pw_global_get_id (impl->global)); + pw_global_register(impl->global); + + return impl; +} + +static void *create_object(void *data, + struct pw_resource *resource, + const char *type, + uint32_t version, + struct pw_properties *properties, + uint32_t new_id) +{ + struct factory_data *d = data; + struct pw_resource *impl_resource; + struct pw_impl_client *client = pw_resource_get_client(resource); + void *result; + int res; + + impl_resource = pw_resource_new(client, new_id, PW_PERM_RWX, type, version, 0); + if (impl_resource == NULL) { + res = -errno; + goto error_resource; + } + + pw_resource_install_marshal(impl_resource, true); + + if (properties == NULL) + properties = pw_properties_new(NULL, NULL); + if (properties == NULL) { + res = -ENOMEM; + goto error_endpoint; + } + + pw_properties_setf(properties, PW_KEY_CLIENT_ID, "%d", + pw_impl_client_get_info(client)->id); + pw_properties_setf(properties, PW_KEY_FACTORY_ID, "%d", + pw_impl_factory_get_info(d->this)->id); + + result = endpoint_new(pw_impl_client_get_context(client), impl_resource, properties); + if (result == NULL) { + res = -errno; + goto error_endpoint; + } + return result; + +error_resource: + pw_log_error("can't create resource: %s", spa_strerror(res)); + pw_resource_errorf_id(resource, new_id, res, "can't create resource: %s", spa_strerror(res)); + goto error_exit; +error_endpoint: + pw_log_error("can't create endpoint: %s", spa_strerror(res)); + pw_resource_errorf_id(resource, new_id, res, "can't create endpoint: %s", spa_strerror(res)); + goto error_exit_free; + +error_exit_free: + pw_resource_remove(impl_resource); +error_exit: + errno = -res; + return NULL; +} + +static const struct pw_impl_factory_implementation impl_factory = { + PW_VERSION_IMPL_FACTORY_IMPLEMENTATION, + .create_object = create_object, +}; + +static void module_destroy(void *data) +{ + struct factory_data *d = data; + + spa_hook_remove(&d->module_listener); + spa_list_remove(&d->export.link); + pw_impl_factory_destroy(d->this); +} + +static void module_registered(void *data) +{ + struct factory_data *d = data; + struct pw_impl_module *module = d->module; + struct pw_impl_factory *factory = d->this; + struct spa_dict_item items[1]; + char id[16]; + int res; + + snprintf(id, sizeof(id), "%d", pw_impl_module_get_info(module)->id); + items[0] = SPA_DICT_ITEM_INIT(PW_KEY_MODULE_ID, id); + pw_impl_factory_update_properties(factory, &SPA_DICT_INIT(items, 1)); + + if ((res = pw_impl_factory_register(factory, NULL)) < 0) { + pw_log_error(NAME" %p: can't register factory: %s", factory, spa_strerror(res)); + } +} + +static const struct pw_impl_module_events module_events = { + PW_VERSION_IMPL_MODULE_EVENTS, + .destroy = module_destroy, + .registered = module_registered, +}; + +int endpoint_factory_init(struct pw_impl_module *module) +{ + struct pw_context *context = pw_impl_module_get_context(module); + struct pw_impl_factory *factory; + struct factory_data *data; + + factory = pw_context_create_factory(context, + "endpoint", + PW_TYPE_INTERFACE_Endpoint, + PW_VERSION_ENDPOINT, + NULL, + sizeof(*data)); + if (factory == NULL) + return -errno; + + data = pw_impl_factory_get_user_data(factory); + data->this = factory; + data->module = module; + + pw_impl_factory_set_implementation(factory, &impl_factory, data); + + data->export.type = PW_TYPE_INTERFACE_Endpoint; + data->export.func = pw_core_endpoint_export; + pw_context_register_export_type(context, &data->export); + + pw_impl_module_add_listener(module, &data->module_listener, &module_events, data); + + return 0; +}