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types: introduce wlr_drm_lease_v1

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master
Simon Zeni 4 years ago committed by Simon Ser
parent c67e3fe3b7
commit 3984c81faa
3 changed files with 866 additions and 0 deletions
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144
include/wlr/types/wlr_drm_lease_v1.h
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@ -0,0 +1,144 @@
/*
* This an unstable interface of wlroots. No guarantees are made regarding the
* future consistency of this API.
*/
#ifndef WLR_USE_UNSTABLE
#error "Add -DWLR_USE_UNSTABLE to enable unstable wlroots features"
#endif
#ifndef WLR_TYPES_WLR_DRM_LEASE_V1_H
#define WLR_TYPES_WLR_DRM_LEASE_V1_H
#include <wayland-server-core.h>
struct wlr_backend;
struct wlr_output;
struct wlr_drm_lease_v1_manager {
struct wl_list devices; // wlr_drm_lease_device_v1::link;
struct wl_display *display;
struct wl_listener display_destroy;
struct {
/**
* Upon receiving this signal, call
* wlr_drm_lease_device_v1_grant_lease_request to grant a lease of the
* requested DRM resources, or
* wlr_drm_lease_device_v1_reject_lease_request to reject the request.
*/
struct wl_signal request;
} events;
};
struct wlr_drm_lease_device_v1 {
struct wl_list resources;
struct wl_global *global;
struct wlr_drm_lease_v1_manager *manager;
struct wlr_backend *backend;
struct wl_list connectors; // wlr_drm_lease_connector_v1::link
struct wl_list leases; // wlr_drm_lease_v1::link
struct wl_list requests; // wlr_drm_lease_request_v1::link
struct wl_list link; // wlr_drm_lease_v1_manager::devices
struct wl_listener backend_destroy;
void *data;
};
struct wlr_drm_lease_v1;
struct wlr_drm_lease_connector_v1 {
struct wl_list resources; // wl_resource_get_link
struct wlr_output *output;
struct wlr_drm_lease_device_v1 *device;
/** NULL if no client is currently leasing this connector */
struct wlr_drm_lease_v1 *active_lease;
struct wl_listener destroy;
struct wl_list link; // wlr_drm_lease_device_v1::connectors
};
struct wlr_drm_lease_request_v1 {
struct wl_resource *resource;
struct wlr_drm_lease_device_v1 *device;
struct wlr_drm_lease_connector_v1 **connectors;
size_t n_connectors;
/** NULL until the lease is submitted */
struct wlr_drm_lease_v1 *lease;
bool invalid;
struct wl_list link; // wlr_drm_lease_device_v1::requests
};
struct wlr_drm_lease_v1 {
struct wl_resource *resource;
struct wlr_drm_lease_device_v1 *device;
struct wlr_drm_lease_connector_v1 **connectors;
size_t n_connectors;
uint32_t lessee_id;
struct wl_list link; // wlr_drm_lease_device_v1::leases
void *data;
};
/**
* Creates a DRM lease manager. A DRM lease device will be created for each
* DRM backend supplied in case of a wlr_multi_backend.
* Returns NULL if no DRM backend is supplied.
*/
struct wlr_drm_lease_v1_manager *wlr_drm_lease_v1_manager_create(
struct wl_display *display, struct wlr_backend *backend);
/**
* Offers a wlr_output for lease.
* Returns false if the output can't be offered to lease.
*/
bool wlr_drm_lease_v1_manager_offer_output(
struct wlr_drm_lease_v1_manager *manager, struct wlr_output *output);
/**
* Withdraws a previously offered output for lease. If the output is leased to
* a client, a finished event will be send and the lease will be terminated.
*/
void wlr_drm_lease_v1_manager_withdraw_output(
struct wlr_drm_lease_v1_manager *manager, struct wlr_output *output);
/**
* Grants a client's lease request. The lease device will then provision the
* DRM lease and transfer the file descriptor to the client. After calling this,
* each wlr_output leased is destroyed, and will be re-issued through
* wlr_backend.events.new_outputs when the lease is revoked.
*
* This will return NULL without leasing any resources if the lease is invalid;
* this can happen for example if two clients request the same resources and an
* attempt to grant both leases is made.
*/
struct wlr_drm_lease_v1 *wlr_drm_lease_request_v1_grant(
struct wlr_drm_lease_request_v1 *request);
/**
* Rejects a client's lease request. The output will still be available to
* lease until withdrawn by the compositor.
*/
void wlr_drm_lease_request_v1_reject(struct wlr_drm_lease_request_v1 *request);
/**
* Revokes a client's lease request. The output will still be available to
* lease until withdrawn by the compositor.
*/
void wlr_drm_lease_v1_revoke(struct wlr_drm_lease_v1 *lease);
#endif

6
types/meson.build
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@ -69,3 +69,9 @@ wlr_files += files(
'wlr_xdg_foreign_registry.c', 'wlr_xdg_foreign_registry.c',
'wlr_xdg_output_v1.c', 'wlr_xdg_output_v1.c',
) )
if features.get('drm-backend')
wlr_files += files(
'wlr_drm_lease_v1.c',
)
endif

716
types/wlr_drm_lease_v1.c
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#include <assert.h>
#include <errno.h>
#include <stdlib.h>
#include <stdio.h>
#include <unistd.h>
#include <wlr/backend/drm.h>
#include <wlr/backend/multi.h>
#include <wlr/types/wlr_drm_lease_v1.h>
#include <wlr/util/log.h>
#include "backend/drm/drm.h"
#include "drm-lease-v1-protocol.h"
#include "util/signal.h"
#include "util/global.h"
#define DRM_LEASE_DEVICE_V1_VERSION 1
static struct wp_drm_lease_device_v1_interface lease_device_impl;
static struct wp_drm_lease_connector_v1_interface lease_connector_impl;
static struct wp_drm_lease_request_v1_interface lease_request_impl;
static struct wp_drm_lease_v1_interface lease_impl;
static struct wlr_drm_lease_device_v1 *drm_lease_device_v1_from_resource(
struct wl_resource *resource) {
assert(wl_resource_instance_of(resource,
&wp_drm_lease_device_v1_interface, &lease_device_impl));
return wl_resource_get_user_data(resource);
}
static struct wlr_drm_lease_connector_v1 *
drm_lease_connector_v1_from_resource(struct wl_resource *resource) {
assert(wl_resource_instance_of(resource,
&wp_drm_lease_connector_v1_interface, &lease_connector_impl));
return wl_resource_get_user_data(resource);
}
static struct wlr_drm_lease_request_v1 *drm_lease_request_v1_from_resource(
struct wl_resource *resource) {
assert(wl_resource_instance_of(resource,
&wp_drm_lease_request_v1_interface, &lease_request_impl));
return wl_resource_get_user_data(resource);
}
static struct wlr_drm_lease_v1 *drm_lease_v1_from_resource(
struct wl_resource *resource) {
assert(wl_resource_instance_of(resource,
&wp_drm_lease_v1_interface, &lease_impl));
return wl_resource_get_user_data(resource);
}
static void drm_lease_v1_destroy(struct wlr_drm_lease_v1 *lease) {
if (!lease) {
return;
}
wlr_log(WLR_DEBUG, "Destroying lease %"PRIu32, lease->lessee_id);
wp_drm_lease_v1_send_finished(lease->resource);
struct wlr_drm_lease_device_v1 *device = lease->device;
wlr_drm_backend_terminate_lease(device->backend, lease->lessee_id);
lease->lessee_id = 0;
for (size_t i = 0; i < lease->n_connectors; ++i) {
lease->connectors[i]->active_lease = NULL;
}
wl_list_remove(&lease->link);
wl_resource_set_user_data(lease->resource, NULL);
free(lease->connectors);
free(lease);
}
static void drm_lease_request_v1_destroy(
struct wlr_drm_lease_request_v1 *request) {
if (!request) {
return;
}
wlr_log(WLR_DEBUG, "Destroying request %p", request);
wl_list_remove(&request->link);
wl_resource_set_user_data(request->resource, NULL);
free(request->connectors);
free(request);
}
static void drm_lease_connector_v1_destroy(
struct wlr_drm_lease_connector_v1 *connector) {
if (!connector) {
return;
}
wlr_log(WLR_DEBUG, "Destroying connector %s", connector->output->name);
if (connector->active_lease) {
drm_lease_v1_destroy(connector->active_lease);
}
struct wl_resource *resource, *tmp;
wl_resource_for_each_safe(resource, tmp, &connector->resources) {
wp_drm_lease_connector_v1_send_withdrawn(resource);
wl_resource_set_user_data(resource, NULL);
wl_list_remove(wl_resource_get_link(resource));
wl_list_init(wl_resource_get_link(resource));
}
struct wl_resource *device_resource;
wl_resource_for_each(device_resource, &connector->device->resources) {
wp_drm_lease_device_v1_send_done(device_resource);
}
wl_list_remove(&connector->link);
wl_list_remove(&connector->destroy.link);
free(connector);
}
static void drm_lease_device_v1_destroy(
struct wlr_drm_lease_device_v1 *device) {
if (!device) {
return;
}
struct wlr_drm_backend *backend =
get_drm_backend_from_backend(device->backend);
wlr_log(WLR_DEBUG, "Destroying wlr_drm_lease_device_v1 for %s",
backend->name);
struct wl_resource *resource, *tmp_resource;
wl_resource_for_each_safe(resource, tmp_resource, &device->resources) {
wl_list_remove(wl_resource_get_link(resource));
wl_list_init(wl_resource_get_link(resource));
wl_resource_set_user_data(resource, NULL);
}
struct wlr_drm_lease_request_v1 *request, *tmp_request;
wl_list_for_each_safe(request, tmp_request, &device->requests, link) {
drm_lease_request_v1_destroy(request);
}
struct wlr_drm_lease_v1 *lease, *tmp_lease;
wl_list_for_each_safe(lease, tmp_lease, &device->leases, link) {
drm_lease_v1_destroy(lease);
}
struct wlr_drm_lease_connector_v1 *connector, *tmp_connector;
wl_list_for_each_safe(connector, tmp_connector, &device->connectors, link) {
drm_lease_connector_v1_destroy(connector);
}
wl_list_remove(&device->link);
wlr_global_destroy_safe(device->global, device->manager->display);
free(device);
}
struct wlr_drm_lease_v1 *wlr_drm_lease_request_v1_grant(
struct wlr_drm_lease_request_v1 *request) {
assert(request->lease);
wlr_log(WLR_DEBUG, "Attempting to grant request %p", request);
struct wlr_drm_lease_v1 *lease = request->lease;
assert(!request->invalid);
/* Transform connectors list into wlr_output for leasing */
struct wlr_output *outputs[request->n_connectors + 1];
for(size_t i = 0; i < request->n_connectors; ++i) {
outputs[i] = request->connectors[i]->output;
}
int fd = wlr_drm_create_lease(outputs, request->n_connectors,
&lease->lessee_id);
if (fd < 0) {
wlr_log_errno(WLR_ERROR, "drm_create_lease failed");
wp_drm_lease_v1_send_finished(lease->resource);
return NULL;
}
lease->connectors = calloc(request->n_connectors,
sizeof(struct wlr_drm_lease_connector_v1 *));
if (!lease->connectors) {
wlr_log(WLR_ERROR, "Failed to allocate lease connectors list");
wp_drm_lease_v1_send_finished(lease->resource);
return NULL;
}
lease->n_connectors = request->n_connectors;
for (size_t i = 0; i < request->n_connectors; ++i) {
lease->connectors[i] = request->connectors[i];
lease->connectors[i]->active_lease = lease;
}
wlr_log(WLR_DEBUG, "Granting request %p", request);
wp_drm_lease_v1_send_lease_fd(lease->resource, fd);
close(fd);
return lease;
}
void wlr_drm_lease_request_v1_reject(
struct wlr_drm_lease_request_v1 *request) {
assert(request && request->lease);
wlr_log(WLR_DEBUG, "Rejecting request %p", request);
request->invalid = true;
wp_drm_lease_v1_send_finished(request->lease->resource);
}
void wlr_drm_lease_v1_revoke(struct wlr_drm_lease_v1 *lease) {
assert(lease);
wlr_log(WLR_DEBUG, "Revoking lease %"PRIu32, lease->lessee_id);
drm_lease_v1_destroy(lease);
}
static void drm_lease_v1_handle_resource_destroy(struct wl_resource *resource) {
struct wlr_drm_lease_v1 *lease = drm_lease_v1_from_resource(resource);
drm_lease_v1_destroy(lease);
}
static void drm_lease_v1_handle_destroy(
struct wl_client *client, struct wl_resource *resource) {
wl_resource_destroy(resource);
}
static struct wp_drm_lease_v1_interface lease_impl = {
.destroy = drm_lease_v1_handle_destroy,
};
static void drm_lease_request_v1_handle_resource_destroy(
struct wl_resource *resource) {
struct wlr_drm_lease_request_v1 *request =
drm_lease_request_v1_from_resource(resource);
drm_lease_request_v1_destroy(request);
}
static void drm_lease_request_v1_handle_request_connector(
struct wl_client *client, struct wl_resource *request_resource,
struct wl_resource *connector_resource) {
struct wlr_drm_lease_request_v1 *request =
drm_lease_request_v1_from_resource(request_resource);
if (!request) {
wlr_log(WLR_ERROR, "Request has been destroyed");
return;
}
struct wlr_drm_lease_connector_v1 *connector =
drm_lease_connector_v1_from_resource(connector_resource);
if (!connector) {
/* This connector offer has been withdrawn or is leased */
wlr_log(WLR_ERROR, "Failed to request connector");
request->invalid = true;
return;
}
wlr_log(WLR_DEBUG, "Requesting connector %s", connector->output->name);
if (request->device != connector->device) {
wlr_log(WLR_ERROR, "The connector belongs to another device");
wl_resource_post_error(request_resource,
WP_DRM_LEASE_REQUEST_V1_ERROR_WRONG_DEVICE,
"The requested connector belongs to another device");
return;
}
for (size_t i = 0; i < request->n_connectors; ++i) {
struct wlr_drm_lease_connector_v1 *tmp = request->connectors[i];
if (connector == tmp) {
wlr_log(WLR_ERROR, "The connector has already been requested");
wl_resource_post_error(request_resource,
WP_DRM_LEASE_REQUEST_V1_ERROR_DUPLICATE_CONNECTOR,
"The connector has already been requested");
return;
}
}
size_t n_connectors = request->n_connectors + 1;
struct wlr_drm_lease_connector_v1 **tmp_connectors =
realloc(request->connectors,
n_connectors * sizeof(struct wlr_drm_lease_connector_v1 *));
if (!tmp_connectors) {
wlr_log(WLR_ERROR, "Failed to grow connectors request array");
return;
}
request->connectors = tmp_connectors;
request->connectors[request->n_connectors] = connector;
request->n_connectors = n_connectors;
}
static void drm_lease_request_v1_handle_submit(
struct wl_client *client, struct wl_resource *resource, uint32_t id) {
uint32_t version = wl_resource_get_version(resource);
struct wl_resource *lease_resource = wl_resource_create(client,
&wp_drm_lease_v1_interface, version, id);
if (!lease_resource) {
wlr_log(WLR_ERROR, "Failed to allocate wl_resource");
wl_resource_post_no_memory(resource);
return;
}
wl_resource_set_implementation(lease_resource, &lease_impl, NULL,
drm_lease_v1_handle_resource_destroy);
struct wlr_drm_lease_request_v1 *request =
drm_lease_request_v1_from_resource(resource);
if (!request) {
wlr_log(WLR_DEBUG, "Request has been destroyed");
return;
}
/* Pre-emptively reject invalid lease requests */
if (request->invalid) {
wlr_log(WLR_ERROR, "Invalid request");
return;
} else if (request->n_connectors == 0) {
wl_resource_post_error(lease_resource,
WP_DRM_LEASE_REQUEST_V1_ERROR_EMPTY_LEASE,
"Lease request has no connectors");
return;
}
for (size_t i = 0; i < request->n_connectors; ++i) {
struct wlr_drm_lease_connector_v1 *conn = request->connectors[i];
if (conn->active_lease) {
wlr_log(WLR_ERROR, "Failed to create lease, connector %s has "
"already been leased", conn->output->name);
return;
}
}
struct wlr_drm_lease_v1 *lease = calloc(1, sizeof(struct wlr_drm_lease_v1));
if (!lease) {
wlr_log(WLR_ERROR, "Failed to allocate wlr_drm_lease_v1");
wl_resource_post_no_memory(resource);
return;
}
lease->device = request->device;
wl_list_insert(&lease->device->leases, &lease->link);
lease->resource = lease_resource;
wl_resource_set_user_data(lease_resource, lease);
request->lease = lease;
/* TODO: reject the request if the user does not grant it */
wlr_signal_emit_safe(&request->device->manager->events.request,
request);
/* Request is done */
wl_resource_destroy(resource);
}
static struct wp_drm_lease_request_v1_interface lease_request_impl = {
.request_connector = drm_lease_request_v1_handle_request_connector,
.submit = drm_lease_request_v1_handle_submit,
};
static void drm_lease_device_v1_handle_resource_destroy(
struct wl_resource *resource) {
wl_list_remove(wl_resource_get_link(resource));
}
static void drm_lease_device_v1_handle_release(
struct wl_client *client, struct wl_resource *resource) {
wp_drm_lease_device_v1_send_released(resource);
wl_resource_destroy(resource);
}
static void drm_lease_device_v1_handle_create_lease_request(
struct wl_client *client, struct wl_resource *resource, uint32_t id) {
uint32_t version = wl_resource_get_version(resource);
struct wl_resource *request_resource = wl_resource_create(client,
&wp_drm_lease_request_v1_interface, version, id);
if (!request_resource) {
wlr_log(WLR_ERROR, "Failed to allocate wl_resource");
return;
}
wl_resource_set_implementation(request_resource, &lease_request_impl,
NULL, drm_lease_request_v1_handle_resource_destroy);
struct wlr_drm_lease_device_v1 *device =
drm_lease_device_v1_from_resource(resource);
if (!device) {
wlr_log(WLR_DEBUG, "Failed to create lease request, "
"wlr_drm_lease_device_v1 has been destroyed");
return;
}
struct wlr_drm_lease_request_v1 *req =
calloc(1, sizeof(struct wlr_drm_lease_request_v1));
if (!req) {
wlr_log(WLR_ERROR, "Failed to allocate wlr_drm_lease_request_v1");
wl_resource_post_no_memory(resource);
return;
}
wlr_log(WLR_DEBUG, "Created request %p", req);
req->device = device;
req->resource = request_resource;
req->connectors = NULL;
req->n_connectors = 0;
wl_resource_set_user_data(request_resource, req);
wl_list_insert(&device->requests, &req->link);
}
static struct wp_drm_lease_device_v1_interface lease_device_impl = {
.release = drm_lease_device_v1_handle_release,
.create_lease_request = drm_lease_device_v1_handle_create_lease_request,
};
static void drm_connector_v1_handle_resource_destroy(
struct wl_resource *resource) {
wl_list_remove(wl_resource_get_link(resource));
}
static void drm_connector_v1_handle_destroy(
struct wl_client *client, struct wl_resource *resource) {
wl_resource_destroy(resource);
}
static struct wp_drm_lease_connector_v1_interface lease_connector_impl = {
.destroy = drm_connector_v1_handle_destroy,
};
static void drm_lease_connector_v1_send_to_client(
struct wlr_drm_lease_connector_v1 *connector,
struct wl_resource *resource) {
if (connector->active_lease) {
return;
}
struct wl_client *client = wl_resource_get_client(resource);
uint32_t version = wl_resource_get_version(resource);
struct wl_resource *connector_resource = wl_resource_create(client,
&wp_drm_lease_connector_v1_interface, version, 0);
if (!connector_resource) {
wl_client_post_no_memory(client);
return;
}
wl_resource_set_implementation(connector_resource, &lease_connector_impl,
connector, drm_connector_v1_handle_resource_destroy);
wp_drm_lease_device_v1_send_connector(resource, connector_resource);
struct wlr_output *output = connector->output;
wp_drm_lease_connector_v1_send_name(connector_resource, output->name);
// TODO: re-send the description when it's updated
wp_drm_lease_connector_v1_send_description(connector_resource,
output->description);
wp_drm_lease_connector_v1_send_connector_id(connector_resource,
wlr_drm_connector_get_id(output));
wp_drm_lease_connector_v1_send_done(connector_resource);
wl_list_insert(&connector->resources,
wl_resource_get_link(connector_resource));
}
static void lease_device_bind(struct wl_client *wl_client, void *data,
uint32_t version, uint32_t id) {
struct wl_resource *device_resource = wl_resource_create(wl_client,
&wp_drm_lease_device_v1_interface, version, id);
if (!device_resource) {
wl_client_post_no_memory(wl_client);
return;
}
wl_resource_set_implementation(device_resource, &lease_device_impl, NULL,
drm_lease_device_v1_handle_resource_destroy);
struct wlr_drm_lease_device_v1 *device = data;
if (!device) {
wlr_log(WLR_DEBUG, "Failed to bind lease device, "
"the wlr_drm_lease_device_v1 has been destroyed");
return;
}
wl_resource_set_user_data(device_resource, device);
int fd = wlr_drm_backend_get_non_master_fd(device->backend);
if (fd < 0) {
wlr_log(WLR_ERROR, "Unable to get read only DRM fd for leasing");
wl_client_post_no_memory(wl_client);
return;
}
wp_drm_lease_device_v1_send_drm_fd(device_resource, fd);
close(fd);
wl_list_insert(&device->resources, wl_resource_get_link(device_resource));
struct wlr_drm_lease_connector_v1 *connector;
wl_list_for_each(connector, &device->connectors, link) {
drm_lease_connector_v1_send_to_client(connector, device_resource);
}
wp_drm_lease_device_v1_send_done(device_resource);
}
static void handle_output_destroy(struct wl_listener *listener, void *data) {
struct wlr_drm_lease_connector_v1 *conn = wl_container_of(listener, conn,
destroy);
wlr_log(WLR_DEBUG, "Handle destruction of output %s", conn->output->name);
wlr_drm_lease_v1_manager_withdraw_output(conn->device->manager, conn->output);
}
bool wlr_drm_lease_v1_manager_offer_output(
struct wlr_drm_lease_v1_manager *manager, struct wlr_output *output) {
assert(manager && output);
assert(wlr_output_is_drm(output));
wlr_log(WLR_DEBUG, "Offering output %s", output->name);
struct wlr_drm_lease_device_v1 *device = NULL, *tmp_device;
wl_list_for_each(tmp_device, &manager->devices, link) {
if (tmp_device->backend == output->backend) {
device = tmp_device;
break;
}
}
if (!device) {
wlr_log(WLR_ERROR, "No wlr_drm_lease_device_v1 associated with the "
"offered output");
return false;
}
struct wlr_drm_lease_connector_v1 *tmp_connector;
wl_list_for_each(tmp_connector, &device->connectors, link) {
if (tmp_connector->output == output) {
wlr_log(WLR_ERROR, "Output %s has already been offered",
output->name);
return false;
}
}
struct wlr_drm_lease_connector_v1 *connector =
calloc(1, sizeof(struct wlr_drm_lease_connector_v1));
if (!connector) {
wlr_log(WLR_ERROR, "Failed to allocate wlr_drm_lease_connector_v1");
return false;
}
connector->output = output;
connector->device = device;
connector->destroy.notify = handle_output_destroy;
wl_signal_add(&output->events.destroy, &connector->destroy);
wl_list_init(&connector->resources);
wl_list_insert(&device->connectors, &connector->link);
struct wl_resource *resource;
wl_resource_for_each(resource, &device->resources) {
drm_lease_connector_v1_send_to_client(connector, resource);
wp_drm_lease_device_v1_send_done(resource);
}
return true;
}
void wlr_drm_lease_v1_manager_withdraw_output(
struct wlr_drm_lease_v1_manager *manager, struct wlr_output *output) {
assert(manager && output);
wlr_log(WLR_DEBUG, "Withdrawing output %s", output->name);
struct wlr_drm_lease_device_v1 *device = NULL, *tmp_device;
wl_list_for_each(tmp_device, &manager->devices, link) {
if (tmp_device->backend == output->backend) {
device = tmp_device;
break;
}
}
if (!device) {
wlr_log(WLR_ERROR, "No wlr_drm_lease_device_v1 associated with the "
"given output");
return;
}
struct wlr_drm_lease_connector_v1 *connector = NULL, *tmp_conn;
wl_list_for_each(tmp_conn, &device->connectors, link) {
if (tmp_conn->output == output) {
connector = tmp_conn;
break;
}
}
if (!connector) {
wlr_log(WLR_DEBUG, "No wlr_drm_connector_v1 associated with the given "
"output");
return;
}
drm_lease_connector_v1_destroy(connector);
}
static void handle_backend_destroy(struct wl_listener *listener, void *data) {
struct wlr_drm_lease_device_v1 *device =
wl_container_of(listener, device, backend_destroy);
drm_lease_device_v1_destroy(device);
}
static void drm_lease_device_v1_create(struct wlr_drm_lease_v1_manager *manager,
struct wlr_backend *backend) {
assert(backend);
struct wlr_drm_backend *drm_backend =
get_drm_backend_from_backend(backend);
wlr_log(WLR_DEBUG, "Creating wlr_drm_lease_device_v1 for %s",
drm_backend->name);
struct wlr_drm_lease_device_v1 *lease_device =
calloc(1, sizeof(struct wlr_drm_lease_device_v1));
if (!lease_device) {
wlr_log(WLR_ERROR, "Failed to allocate wlr_drm_lease_device_v1");
return;
}
lease_device->manager = manager;
lease_device->backend = backend;
wl_list_init(&lease_device->resources);
wl_list_init(&lease_device->connectors);
wl_list_init(&lease_device->requests);
wl_list_init(&lease_device->leases);
wl_list_init(&lease_device->link);
lease_device->global = wl_global_create(manager->display,
&wp_drm_lease_device_v1_interface, DRM_LEASE_DEVICE_V1_VERSION,
lease_device, lease_device_bind);
if (!lease_device->global) {
wlr_log(WLR_ERROR, "Failed to allocate wp_drm_lease_device_v1 global");
free(lease_device);
return;
}
lease_device->backend_destroy.notify = handle_backend_destroy;
wl_signal_add(&backend->events.destroy, &lease_device->backend_destroy);
wl_list_insert(&manager->devices, &lease_device->link);
}
static void multi_backend_cb(struct wlr_backend *backend, void *data) {
if (!wlr_backend_is_drm(backend)) {
return;
}
struct wlr_drm_lease_v1_manager *manager = data;
drm_lease_device_v1_create(manager, backend);
}
static void handle_display_destroy(struct wl_listener *listener, void *data) {
struct wlr_drm_lease_v1_manager *manager = wl_container_of(listener, manager,
display_destroy);
wlr_log(WLR_DEBUG, "Destroying wlr_drm_lease_v1_manager");
struct wlr_drm_lease_device_v1 *device, *tmp;
wl_list_for_each_safe(device, tmp, &manager->devices, link) {
drm_lease_device_v1_destroy(device);
}
free(manager);
}
struct wlr_drm_lease_v1_manager *wlr_drm_lease_v1_manager_create(
struct wl_display *display, struct wlr_backend *backend) {
struct wlr_drm_lease_v1_manager *manager = calloc(1,
sizeof(struct wlr_drm_lease_v1_manager));
if (!manager) {
wlr_log(WLR_ERROR, "Failed to allocate wlr_drm_lease_v1_manager");
return NULL;
}
wl_list_init(&manager->devices);
manager->display = display;
if (wlr_backend_is_multi(backend)) {
/* TODO: handle backends added after the manager is created */
wlr_multi_for_each_backend(backend, multi_backend_cb, manager);
} else if (wlr_backend_is_drm(backend)) {
drm_lease_device_v1_create(manager, backend);
}
if (wl_list_empty(&manager->devices)) {
wlr_log(WLR_ERROR, "No DRM backend supplied, failed to create "
"wlr_drm_lease_v1_manager");
free(manager);
return NULL;
}
manager->display_destroy.notify = handle_display_destroy;
wl_display_add_destroy_listener(display, &manager->display_destroy);
wl_signal_init(&manager->events.request);
return manager;
}
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