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session-manager: move files into client-endpoint / client-session subdirs

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To clean up space for the new implementation.
The existing code is exclusively for use with the client-endpoint
and client-session factories.
This commit is contained in:
George Kiagiadakis 2020-03-24 12:25:13 +02:00 • committed by Wim Taymans
parent bc3a92e950
commit 234c642746
13 changed files with 6 additions and 6 deletions
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278
src/modules/module-session-manager/client-session/client-session.c Normal file
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/* PipeWire
*
* Copyright © 2019 Collabora Ltd.
* @author George Kiagiadakis <george.kiagiadakis@collabora.com>
*
* 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 <stdbool.h>
#include <string.h>
#include <spa/utils/result.h>
#include <pipewire/impl.h>
#include <extensions/session-manager.h>
#include "client-session.h"
#include "session.h"
#include "endpoint-link.h"
#define NAME "client-session"
struct factory_data {
struct pw_impl_factory *factory;
struct pw_impl_module *module;
struct spa_hook module_listener;
};
static struct endpoint_link *find_link(struct client_session *this, uint32_t id)
{
struct endpoint_link *l;
spa_list_for_each(l, &this->links, link) {
if (l->id == id)
return l;
}
return NULL;
}
static int client_session_update(void *object,
uint32_t change_mask,
uint32_t n_params,
const struct spa_pod **params,
const struct pw_session_info *info)
{
struct client_session *this = object;
struct session *session = &this->session;
return session_update(session, change_mask, n_params, params, info);
}
static int client_session_link_update(void *object,
uint32_t link_id,
uint32_t change_mask,
uint32_t n_params,
const struct spa_pod **params,
const struct pw_endpoint_link_info *info)
{
struct client_session *this = object;
struct session *session = &this->session;
struct endpoint_link *link = find_link(this, link_id);
struct pw_properties *props = NULL;
if (!link) {
struct pw_context *context = pw_global_get_context(session->global);
const char *keys[] = {
PW_KEY_FACTORY_ID,
PW_KEY_CLIENT_ID,
PW_KEY_SESSION_ID,
PW_KEY_ENDPOINT_LINK_OUTPUT_ENDPOINT,
PW_KEY_ENDPOINT_LINK_OUTPUT_STREAM,
PW_KEY_ENDPOINT_LINK_INPUT_ENDPOINT,
PW_KEY_ENDPOINT_LINK_INPUT_STREAM,
NULL
};
link = calloc(1, sizeof(struct endpoint_link));
if (!link)
goto no_mem;
props = pw_properties_new(NULL, NULL);
if (!props)
goto no_mem;
pw_properties_update_keys(props, &session->props->dict, keys);
if (info && info->props)
pw_properties_update_keys(props, info->props, keys);
if (endpoint_link_init(link, link_id, session->info.id,
this, context, props) < 0)
goto no_mem;
spa_list_append(&this->links, &link->link);
}
else if (change_mask & PW_CLIENT_SESSION_LINK_UPDATE_DESTROYED) {
endpoint_link_clear(link);
spa_list_remove(&link->link);
free(link);
link = NULL;
}
return link ?
endpoint_link_update(link, change_mask, n_params, params, info)
: 0;
no_mem:
if (props)
pw_properties_free(props);
free(link);
pw_log_error(NAME" %p: cannot update link: no memory", this);
pw_resource_error(this->resource, -ENOMEM,
"cannot update link: no memory");
return -ENOMEM;
}
static struct pw_client_session_methods methods = {
PW_VERSION_CLIENT_SESSION_METHODS,
.update = client_session_update,
.link_update = client_session_link_update,
};
static void client_session_destroy(void *data)
{
struct client_session *this = data;
struct endpoint_link *l;
pw_log_debug(NAME" %p: destroy", this);
spa_list_consume(l, &this->links, link) {
endpoint_link_clear(l);
spa_list_remove(&l->link);
free(l);
}
session_clear(&this->session);
spa_hook_remove(&this->resource_listener);
free(this);
}
static const struct pw_resource_events resource_events = {
PW_VERSION_RESOURCE_EVENTS,
.destroy = client_session_destroy,
};
static void *create_object(void *data,
struct pw_resource *owner_resource,
const char *type,
uint32_t version,
struct pw_properties *properties,
uint32_t new_id)
{
struct factory_data *d = data;
struct pw_impl_factory *factory = d->factory;
struct client_session *this;
struct pw_impl_client *owner = pw_resource_get_client(owner_resource);
struct pw_context *context = pw_impl_client_get_context(owner);
this = calloc(1, sizeof(struct client_session));
if (this == NULL)
goto no_mem;
spa_list_init(&this->links);
pw_log_debug(NAME" %p: new", this);
if (!properties)
properties = pw_properties_new(NULL, NULL);
if (!properties)
goto no_mem;
pw_properties_setf(properties, PW_KEY_CLIENT_ID, "%d",
pw_impl_client_get_info(owner)->id);
pw_properties_setf(properties, PW_KEY_FACTORY_ID, "%d",
pw_impl_factory_get_info(factory)->id);
this->resource = pw_resource_new(owner, new_id, PW_PERM_RWX, type, version, 0);
if (this->resource == NULL)
goto no_mem;
if (session_init(&this->session, this, context, properties) < 0)
goto no_mem;
pw_resource_add_listener(this->resource, &this->resource_listener,
&resource_events, this);
pw_resource_add_object_listener(this->resource, &this->object_listener,
&methods, this);
return this;
no_mem:
if (properties)
pw_properties_free(properties);
if (this && this->resource)
pw_resource_destroy(this->resource);
free(this);
pw_log_error("can't create client session: no memory");
pw_resource_error(owner_resource, -ENOMEM,
"can't create client session: no memory");
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);
pw_impl_factory_destroy(d->factory);
}
static void module_registered(void *data)
{
struct factory_data *d = data;
struct pw_impl_module *module = d->module;
struct pw_impl_factory *factory = d->factory;
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 client_session_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,
"client-session",
PW_TYPE_INTERFACE_ClientSession,
PW_VERSION_CLIENT_SESSION,
NULL,
sizeof(*data));
if (factory == NULL)
return -ENOMEM;
data = pw_impl_factory_get_user_data(factory);
data->factory = factory;
data->module = module;
pw_impl_factory_set_implementation(factory, &impl_factory, data);
pw_impl_module_add_listener(module, &data->module_listener, &module_events, data);
return 0;
}

62
src/modules/module-session-manager/client-session/client-session.h Normal file
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/* PipeWire
*
* Copyright © 2019 Collabora Ltd.
* @author George Kiagiadakis <george.kiagiadakis@collabora.com>
*
* 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.
*/
#ifndef MODULE_SESSION_MANAGER_CLIENT_SESSION_H
#define MODULE_SESSION_MANAGER_CLIENT_SESSION_H
#include "session.h"
#ifdef __cplusplus
extern "C" {
#endif
struct client_session {
struct pw_resource *resource;
struct spa_hook resource_listener;
struct spa_hook object_listener;
struct session session;
struct spa_list links;
};
#define pw_client_session_resource(r,m,v,...) \
pw_resource_call_res(r,struct pw_client_session_events,m,v,__VA_ARGS__)
#define pw_client_session_resource_set_id(r,...) \
pw_client_session_resource(r,set_id,0,__VA_ARGS__)
#define pw_client_session_resource_set_param(r,...) \
pw_client_session_resource(r,set_param,0,__VA_ARGS__)
#define pw_client_session_resource_link_set_param(r,...) \
pw_client_session_resource(r,link_set_param,0,__VA_ARGS__)
#define pw_client_session_resource_create_link(r,...) \
pw_client_session_resource(r,create_link,0,__VA_ARGS__)
#define pw_client_session_resource_destroy_link(r,...) \
pw_client_session_resource(r,destroy_link,0,__VA_ARGS__)
#define pw_client_session_resource_link_request_state(r,...) \
pw_client_session_resource(r,link_request_state,0,__VA_ARGS__)
#ifdef __cplusplus
} /* extern "C" */
#endif
#endif /* MODULE_SESSION_MANAGER_CLIENT_SESSION_H */

355
src/modules/module-session-manager/client-session/endpoint-link.c Normal file
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/* PipeWire
*
* Copyright © 2019 Collabora Ltd.
* @author George Kiagiadakis <george.kiagiadakis@collabora.com>
*
* 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 <stdbool.h>
#include <string.h>
#include <pipewire/impl.h>
#include <extensions/session-manager.h>
#include <spa/pod/filter.h>
#include "endpoint-link.h"
#include "client-session.h"
#define NAME "endpoint-link"
struct resource_data {
struct endpoint_link *link;
struct spa_hook object_listener;
uint32_t n_subscribe_ids;
uint32_t subscribe_ids[32];
};
#define pw_endpoint_link_resource(r,m,v,...) \
pw_resource_call(r,struct pw_endpoint_link_events,m,v,__VA_ARGS__)
#define pw_endpoint_link_resource_info(r,...) \
pw_endpoint_link_resource(r,info,0,__VA_ARGS__)
#define pw_endpoint_link_resource_param(r,...) \
pw_endpoint_link_resource(r,param,0,__VA_ARGS__)
static int endpoint_link_enum_params (void *object, int seq,
uint32_t id, uint32_t start, uint32_t num,
const struct spa_pod *filter)
{
struct pw_resource *resource = object;
struct resource_data *data = pw_resource_get_user_data(resource);
struct endpoint_link *this = data->link;
struct spa_pod *result;
struct spa_pod *param;
uint8_t buffer[1024];
struct spa_pod_builder b = { 0 };
uint32_t index;
uint32_t next = start;
uint32_t count = 0;
while (true) {
index = next++;
if (index >= this->n_params)
break;
param = this->params[index];
if (param == NULL || !spa_pod_is_object_id(param, id))
continue;
spa_pod_builder_init(&b, buffer, sizeof(buffer));
if (spa_pod_filter(&b, &result, param, filter) != 0)
continue;
pw_log_debug(NAME" %p: %d param %u", this, seq, index);
pw_endpoint_link_resource_param(resource, seq, id, index, next, result);
if (++count == num)
break;
}
return 0;
}
static int endpoint_link_subscribe_params (void *object, uint32_t *ids, uint32_t n_ids)
{
struct pw_resource *resource = object;
struct resource_data *data = pw_resource_get_user_data(resource);
uint32_t i;
n_ids = SPA_MIN(n_ids, SPA_N_ELEMENTS(data->subscribe_ids));
data->n_subscribe_ids = n_ids;
for (i = 0; i < n_ids; i++) {
data->subscribe_ids[i] = ids[i];
pw_log_debug(NAME" %p: resource %d subscribe param %u",
data->link, pw_resource_get_id(resource), ids[i]);
endpoint_link_enum_params(resource, 1, ids[i], 0, UINT32_MAX, NULL);
}
return 0;
}
static int endpoint_link_set_param (void *object, uint32_t id, uint32_t flags,
const struct spa_pod *param)
{
struct pw_resource *resource = object;
struct resource_data *data = pw_resource_get_user_data(resource);
struct endpoint_link *this = data->link;
pw_client_session_resource_set_param(this->client_sess->resource,
id, flags, param);
return 0;
}
static int endpoint_link_request_state(void *object, enum pw_endpoint_link_state state)
{
struct pw_resource *resource = object;
struct resource_data *data = pw_resource_get_user_data(resource);
struct endpoint_link *this = data->link;
pw_client_session_resource_link_request_state(this->client_sess->resource,
this->id, state);
return 0;
}
static const struct pw_endpoint_link_methods methods = {
PW_VERSION_ENDPOINT_LINK_METHODS,
.subscribe_params = endpoint_link_subscribe_params,
.enum_params = endpoint_link_enum_params,
.set_param = endpoint_link_set_param,
.request_state = endpoint_link_request_state,
};
struct emit_param_data {
struct endpoint_link *this;
struct spa_pod *param;
uint32_t id;
uint32_t index;
uint32_t next;
};
static int emit_param(void *_data, struct pw_resource *resource)
{
struct emit_param_data *d = _data;
struct resource_data *data;
uint32_t i;
data = pw_resource_get_user_data(resource);
for (i = 0; i < data->n_subscribe_ids; i++) {
if (data->subscribe_ids[i] == d->id) {
pw_endpoint_link_resource_param(resource, 1,
d->id, d->index, d->next, d->param);
}
}
return 0;
}
static void endpoint_link_notify_subscribed(struct endpoint_link *this,
uint32_t index, uint32_t next)
{
struct pw_global *global = this->global;
struct emit_param_data data;
struct spa_pod *param = this->params[index];
if (!param || !spa_pod_is_object (param))
return;
data.this = this;
data.param = param;
data.id = SPA_POD_OBJECT_ID (param);
data.index = index;
data.next = next;
pw_global_for_each_resource(global, emit_param, &data);
}
static int emit_info(void *data, struct pw_resource *resource)
{
struct endpoint_link *this = data;
pw_endpoint_link_resource_info(resource, &this->info);
return 0;
}
int endpoint_link_update(struct endpoint_link *this,
uint32_t change_mask,
uint32_t n_params,
const struct spa_pod **params,
const struct pw_endpoint_link_info *info)
{
if (change_mask & PW_CLIENT_SESSION_UPDATE_PARAMS) {
uint32_t i;
size_t size = n_params * sizeof(struct spa_pod *);
pw_log_debug(NAME" %p: update %d params", this, n_params);
for (i = 0; i < this->n_params; i++)
free(this->params[i]);
this->params = realloc(this->params, size);
if (size > 0 && !this->params) {
this->n_params = 0;
goto no_mem;
}
this->n_params = n_params;
for (i = 0; i < this->n_params; i++) {
this->params[i] = params[i] ? spa_pod_copy(params[i]) : NULL;
endpoint_link_notify_subscribed(this, i, i+1);
}
}
if (change_mask & PW_CLIENT_SESSION_UPDATE_INFO) {
if (info->change_mask & PW_ENDPOINT_LINK_CHANGE_MASK_STATE) {
this->info.state = info->state;
free(this->info.error);
this->info.error = info->error ? strdup(info->error) : NULL;
}
if (info->change_mask & PW_ENDPOINT_LINK_CHANGE_MASK_PROPS)
pw_properties_update(this->props, info->props);
if (info->change_mask & PW_ENDPOINT_LINK_CHANGE_MASK_PARAMS) {
size_t size = info->n_params * sizeof(struct spa_param_info);
this->info.params = realloc(this->info.params, size);
if (size > 0 && !this->info.params) {
this->info.n_params = 0;
goto no_mem;
}
this->info.n_params = info->n_params;
memcpy(this->info.params, info->params, size);
}
if (!this->info.output_endpoint_id) {
this->info.output_endpoint_id = info->output_endpoint_id;
this->info.output_stream_id = info->output_stream_id;
this->info.input_endpoint_id = info->input_endpoint_id;
this->info.input_stream_id = info->input_stream_id;
}
this->info.change_mask = info->change_mask;
pw_global_for_each_resource(this->global, emit_info, this);
this->info.change_mask = 0;
}
return 0;
no_mem:
pw_log_error(NAME" %p: can't update: no memory", this);
pw_resource_error(this->client_sess->resource, -ENOMEM,
"can't update: no memory");
return -ENOMEM;
}
static int endpoint_link_bind(void *_data, struct pw_impl_client *client,
uint32_t permissions, uint32_t version, uint32_t id)
{
struct endpoint_link *this = _data;
struct pw_global *global = this->global;
struct pw_resource *resource;
struct resource_data *data;
resource = pw_resource_new(client, id, permissions,
pw_global_get_type(global), version, sizeof(*data));
if (resource == NULL)
goto no_mem;
data = pw_resource_get_user_data(resource);
data->link = this;
pw_resource_add_object_listener(resource, &data->object_listener,
&methods, resource);
pw_log_debug(NAME" %p: bound to %d", this, pw_resource_get_id(resource));
pw_global_add_resource(global, resource);
this->info.change_mask = PW_ENDPOINT_LINK_CHANGE_MASK_ALL;
pw_endpoint_link_resource_info(resource, &this->info);
this->info.change_mask = 0;
return 0;
no_mem:
pw_log_error(NAME" %p: can't create resource: no memory", this);
pw_resource_error(this->client_sess->resource, -ENOMEM,
"can't create resource: no memory");
return -ENOMEM;
}
int endpoint_link_init(struct endpoint_link *this,
uint32_t id, uint32_t session_id,
struct client_session *client_sess,
struct pw_context *context,
struct pw_properties *properties)
{
pw_log_debug(NAME" %p: new", this);
this->client_sess = client_sess;
this->id = id;
this->props = properties;
pw_properties_setf(properties, PW_KEY_SESSION_ID, "%u", session_id);
properties = pw_properties_copy(properties);
if (!properties)
goto no_mem;
this->global = pw_global_new(context,
PW_TYPE_INTERFACE_EndpointLink,
PW_VERSION_ENDPOINT_LINK,
properties, endpoint_link_bind, this);
if (!this->global)
goto no_mem;
pw_properties_setf(this->props, PW_KEY_OBJECT_ID, "%u",
pw_global_get_id(this->global));
this->info.version = PW_VERSION_ENDPOINT_LINK_INFO;
this->info.id = pw_global_get_id(this->global);
this->info.session_id = session_id;
this->info.props = &this->props->dict;
return pw_global_register(this->global);
no_mem:
pw_log_error(NAME" - can't create - out of memory");
return -ENOMEM;
}
void endpoint_link_clear(struct endpoint_link *this)
{
uint32_t i;
pw_log_debug(NAME" %p: destroy", this);
pw_global_destroy(this->global);
for (i = 0; i < this->n_params; i++)
free(this->params[i]);
free(this->params);
free(this->info.error);
free(this->info.params);
if (this->props)
pw_properties_free(this->props);
}

64
src/modules/module-session-manager/client-session/endpoint-link.h Normal file
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@ -0,0 +1,64 @@
/* PipeWire
*
* Copyright © 2019 Collabora Ltd.
* @author George Kiagiadakis <george.kiagiadakis@collabora.com>
*
* 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.
*/
#ifndef MODULE_SESSION_MANAGER_ENDPOINT_LINK_H
#define MODULE_SESSION_MANAGER_ENDPOINT_LINK_H
#ifdef __cplusplus
extern "C" {
#endif
struct client_session;
struct endpoint_link {
struct spa_list link;
struct client_session *client_sess;
struct pw_global *global;
uint32_t id; /* session-local link id */
uint32_t n_params;
struct spa_pod **params;
struct pw_endpoint_link_info info;
struct pw_properties *props; /* wrapper of info.props */
};
int endpoint_link_init(struct endpoint_link *this,
uint32_t id, uint32_t session_id,
struct client_session *client_sess,
struct pw_context *context,
struct pw_properties *properties);
void endpoint_link_clear(struct endpoint_link *this);
int endpoint_link_update(struct endpoint_link *this,
uint32_t change_mask,
uint32_t n_params,
const struct spa_pod **params,
const struct pw_endpoint_link_info *info);
#ifdef __cplusplus
} /* extern "C" */
#endif
#endif /* MODULE_SESSION_MANAGER_ENDPOINT_LINK_H */

334
src/modules/module-session-manager/client-session/session.c Normal file
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/* PipeWire
*
* Copyright © 2019 Collabora Ltd.
* @author George Kiagiadakis <george.kiagiadakis@collabora.com>
*
* 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 <stdbool.h>
#include <string.h>
#include <pipewire/impl.h>
#include <extensions/session-manager.h>
#include <spa/pod/filter.h>
#include "session.h"
#include "client-session.h"
#define NAME "session"
struct resource_data {
struct session *session;
struct spa_hook object_listener;
uint32_t n_subscribe_ids;
uint32_t subscribe_ids[32];
};
#define pw_session_resource(r,m,v,...) \
pw_resource_call(r,struct pw_session_events,m,v,__VA_ARGS__)
#define pw_session_resource_info(r,...) \
pw_session_resource(r,info,0,__VA_ARGS__)
#define pw_session_resource_param(r,...) \
pw_session_resource(r,param,0,__VA_ARGS__)
static int session_enum_params (void *object, int seq,
uint32_t id, uint32_t start, uint32_t num,
const struct spa_pod *filter)
{
struct pw_resource *resource = object;
struct resource_data *data = pw_resource_get_user_data(resource);
struct session *this = data->session;
struct spa_pod *result;
struct spa_pod *param;
uint8_t buffer[1024];
struct spa_pod_builder b = { 0 };
uint32_t index;
uint32_t next = start;
uint32_t count = 0;
while (true) {
index = next++;
if (index >= this->n_params)
break;
param = this->params[index];
if (param == NULL || !spa_pod_is_object_id(param, id))
continue;
spa_pod_builder_init(&b, buffer, sizeof(buffer));
if (spa_pod_filter(&b, &result, param, filter) != 0)
continue;
pw_log_debug(NAME" %p: %d param %u", this, seq, index);
pw_session_resource_param(resource, seq, id, index, next, result);
if (++count == num)
break;
}
return 0;
}
static int session_subscribe_params (void *object, uint32_t *ids, uint32_t n_ids)
{
struct pw_resource *resource = object;
struct resource_data *data = pw_resource_get_user_data(resource);
uint32_t i;
n_ids = SPA_MIN(n_ids, SPA_N_ELEMENTS(data->subscribe_ids));
data->n_subscribe_ids = n_ids;
for (i = 0; i < n_ids; i++) {
data->subscribe_ids[i] = ids[i];
pw_log_debug(NAME" %p: resource %d subscribe param %u",
data->session, pw_resource_get_id(resource), ids[i]);
session_enum_params(resource, 1, ids[i], 0, UINT32_MAX, NULL);
}
return 0;
}
static int session_set_param (void *object, uint32_t id, uint32_t flags,
const struct spa_pod *param)
{
struct pw_resource *resource = object;
struct resource_data *data = pw_resource_get_user_data(resource);
struct session *this = data->session;
pw_client_session_resource_set_param(this->client_sess->resource,
id, flags, param);
return 0;
}
static const struct pw_session_methods methods = {
PW_VERSION_SESSION_METHODS,
.subscribe_params = session_subscribe_params,
.enum_params = session_enum_params,
.set_param = session_set_param,
};
struct emit_param_data {
struct session *this;
struct spa_pod *param;
uint32_t id;
uint32_t index;
uint32_t next;
};
static int emit_param(void *_data, struct pw_resource *resource)
{
struct emit_param_data *d = _data;
struct resource_data *data;
uint32_t i;
data = pw_resource_get_user_data(resource);
for (i = 0; i < data->n_subscribe_ids; i++) {
if (data->subscribe_ids[i] == d->id) {
pw_session_resource_param(resource, 1,
d->id, d->index, d->next, d->param);
}
}
return 0;
}
static void session_notify_subscribed(struct session *this,
uint32_t index, uint32_t next)
{
struct pw_global *global = this->global;
struct emit_param_data data;
struct spa_pod *param = this->params[index];
if (!param || !spa_pod_is_object (param))
return;
data.this = this;
data.param = param;
data.id = SPA_POD_OBJECT_ID (param);
data.index = index;
data.next = next;
pw_global_for_each_resource(global, emit_param, &data);
}
static int emit_info(void *data, struct pw_resource *resource)
{
struct session *this = data;
pw_session_resource_info(resource, &this->info);
return 0;
}
int session_update(struct session *this,
uint32_t change_mask,
uint32_t n_params,
const struct spa_pod **params,
const struct pw_session_info *info)
{
if (change_mask & PW_CLIENT_SESSION_UPDATE_PARAMS) {
uint32_t i;
size_t size = n_params * sizeof(struct spa_pod *);
pw_log_debug(NAME" %p: update %d params", this, n_params);
for (i = 0; i < this->n_params; i++)
free(this->params[i]);
this->params = realloc(this->params, size);
if (size > 0 && !this->params) {
this->n_params = 0;
goto no_mem;
}
this->n_params = n_params;
for (i = 0; i < this->n_params; i++) {
this->params[i] = params[i] ? spa_pod_copy(params[i]) : NULL;
session_notify_subscribed(this, i, i+1);
}
}
if (change_mask & PW_CLIENT_SESSION_UPDATE_INFO) {
if (info->change_mask & PW_SESSION_CHANGE_MASK_PROPS)
pw_properties_update(this->props, info->props);
if (info->change_mask & PW_SESSION_CHANGE_MASK_PARAMS) {
size_t size = info->n_params * sizeof(struct spa_param_info);
this->info.params = realloc(this->info.params, size);
if (size > 0 && !this->info.params) {
this->info.n_params = 0;
goto no_mem;
}
this->info.n_params = info->n_params;
memcpy(this->info.params, info->params, size);
}
this->info.change_mask = info->change_mask;
pw_global_for_each_resource(this->global, emit_info, this);
this->info.change_mask = 0;
}
return 0;
no_mem:
pw_log_error(NAME" can't update: no memory");
pw_resource_error(this->client_sess->resource, -ENOMEM,
NAME" can't update: no memory");
return -ENOMEM;
}
static int session_bind(void *_data, struct pw_impl_client *client,
uint32_t permissions, uint32_t version, uint32_t id)
{
struct session *this = _data;
struct pw_global *global = this->global;
struct pw_resource *resource;
struct resource_data *data;
resource = pw_resource_new(client, id, permissions,
pw_global_get_type(global), version, sizeof(*data));
if (resource == NULL)
goto no_mem;
data = pw_resource_get_user_data(resource);
data->session = this;
pw_resource_add_object_listener(resource, &data->object_listener,
&methods, resource);
pw_log_debug(NAME" %p: bound to %d", this, pw_resource_get_id(resource));
pw_global_add_resource(global, resource);
this->info.change_mask = PW_SESSION_CHANGE_MASK_ALL;
pw_session_resource_info(resource, &this->info);
this->info.change_mask = 0;
return 0;
no_mem:
pw_log_error(NAME" can't create resource: no memory");
pw_resource_error(this->client_sess->resource, -ENOMEM,
NAME" can't create resource: no memory");
return -ENOMEM;
}
int session_init(struct session *this,
struct client_session *client_sess,
struct pw_context *context,
struct pw_properties *properties)
{
const char *keys[] = {
PW_KEY_FACTORY_ID,
PW_KEY_CLIENT_ID,
NULL
};
pw_log_debug(NAME" %p: new", this);
this->client_sess = client_sess;
this->props = properties;
properties = pw_properties_new(NULL, NULL);
if (!properties)
goto no_mem;
pw_properties_update_keys(properties, &this->props->dict, keys);
this->global = pw_global_new (context,
PW_TYPE_INTERFACE_Session,
PW_VERSION_SESSION,
properties, session_bind, this);
if (!this->global)
goto no_mem;
pw_properties_setf(this->props, PW_KEY_OBJECT_ID, "%u",
pw_global_get_id(this->global));
this->info.version = PW_VERSION_SESSION_INFO;
this->info.id = pw_global_get_id(this->global);
this->info.props = &this->props->dict;
pw_resource_set_bound_id(client_sess->resource, this->info.id);
return pw_global_register(this->global);
no_mem:
pw_log_error(NAME" - can't create - out of memory");
return -ENOMEM;
}
void session_clear(struct session *this)
{
uint32_t i;
pw_log_debug(NAME" %p: destroy", this);
pw_global_destroy(this->global);
for (i = 0; i < this->n_params; i++)
free(this->params[i]);
free(this->params);
free(this->info.params);
if (this->props)
pw_properties_free(this->props);
}

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src/modules/module-session-manager/client-session/session.h Normal file
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/* PipeWire
*
* Copyright © 2019 Collabora Ltd.
* @author George Kiagiadakis <george.kiagiadakis@collabora.com>
*
* 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.
*/
#ifndef MODULE_SESSION_MANAGER_SESSION_H
#define MODULE_SESSION_MANAGER_SESSION_H
#ifdef __cplusplus
extern "C" {
#endif
struct client_session;
struct session {
struct client_session *client_sess;
struct pw_global *global;
uint32_t n_params;
struct spa_pod **params;
struct pw_session_info info;
struct pw_properties *props; /* wrapper of info.props */
};
int session_init(struct session *this,
struct client_session *client_sess,
struct pw_context *context,
struct pw_properties *properties);
void session_clear(struct session *this);
int session_update(struct session *this,
uint32_t change_mask,
uint32_t n_params,
const struct spa_pod **params,
const struct pw_session_info *info);
#ifdef __cplusplus
} /* extern "C" */
#endif
#endif /* MODULE_SESSION_MANAGER_SESSION_H */