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device: handle async implementations

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This commit is contained in:
Wim Taymans 2019-05-28 14:02:14 +02:00
parent bf677d55da
commit 504b2da72b
1 changed files with 60 additions and 11 deletions
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71
src/pipewire/device.c
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@ -41,10 +41,23 @@ struct impl {
#define pw_device_resource_info(r,...) pw_device_resource(r,info,0,__VA_ARGS__)
#define pw_device_resource_param(r,...) pw_device_resource(r,param,0,__VA_ARGS__)
struct result_device_params_data {
void *data;
int (*callback) (void *data, int seq,
uint32_t id, uint32_t index, uint32_t next,
struct spa_pod *param);
};
struct resource_data {
struct spa_hook resource_listener;
struct pw_device *device;
struct pw_resource *resource;
/* for async replies */
int seq;
int end;
struct result_device_params_data data;
struct spa_hook listener;
};
struct node_data {
@ -124,20 +137,22 @@ void pw_device_destroy(struct pw_device *device)
static void device_unbind_func(void *data)
{
struct pw_resource *resource = data;
struct resource_data *d = data;
struct pw_resource *resource = d->resource;
spa_list_remove(&resource->link);
}
static void device_pong(void *data, int seq)
{
struct resource_data *d = data;
struct pw_resource *resource = d->resource;
pw_log_debug("resource %p: got pong %d", resource, seq);
}
static const struct pw_resource_events resource_events = {
PW_VERSION_RESOURCE_EVENTS,
.destroy = device_unbind_func,
};
struct result_device_params_data {
void *data;
int (*callback) (void *data, int seq,
uint32_t id, uint32_t index, uint32_t next,
struct spa_pod *param);
.pong = device_pong,
};
static void result_device_params(void *data, int seq, int res, uint32_t type, const void *result)
@ -198,6 +213,20 @@ static int reply_param(void *data, int seq, uint32_t id,
return 0;
}
static void result_device_params_async(void *data, int seq, int res, uint32_t type, const void *result)
{
struct resource_data *d = data;
pw_log_debug("async result %d %d (%d/%d)", res, seq, d->seq, d->end);
if (seq == d->seq)
result_device_params(&d->data, seq, res, type, result);
if (seq == d->end) {
spa_hook_remove(&d->listener);
pw_client_set_busy(d->resource->client, false);
}
}
static int device_enum_params(void *object, int seq, uint32_t id, uint32_t start, uint32_t num,
const struct spa_pod *filter)
{
@ -206,11 +235,27 @@ static int device_enum_params(void *object, int seq, uint32_t id, uint32_t start
struct pw_device *device = data->device;
struct pw_client *client = resource->client;
int res;
static const struct spa_device_events device_events = {
SPA_VERSION_DEVICE_EVENTS,
.result = result_device_params_async,
};
if ((res = pw_device_for_each_param(device, seq, id, start, num,
filter, reply_param, data)) < 0)
res = pw_device_for_each_param(device, seq, id, start, num,
filter, reply_param, data);
if (res < 0) {
pw_core_resource_error(client->core_resource,
resource->id, seq, res, spa_strerror(res));
} else if (SPA_RESULT_IS_ASYNC(res)) {
data->data.data = data;
data->data.callback = reply_param;
spa_device_add_listener(device->device, &data->listener,
&device_events, data);
data->seq = res;
data->end = spa_device_sync(device->device, res);
pw_client_set_busy(client, true);
}
return res;
}
@ -249,7 +294,7 @@ global_bind(void *_data, struct pw_client *client, uint32_t permissions,
data = pw_resource_get_user_data(resource);
data->device = this;
data->resource = resource;
pw_resource_add_listener(resource, &data->resource_listener, &resource_events, resource);
pw_resource_add_listener(resource, &data->resource_listener, &resource_events, data);
pw_resource_set_implementation(resource, &device_methods, data);
@ -393,6 +438,10 @@ static void device_add(struct pw_device *device, uint32_t id,
pw_log_warn("device %p: unknown type %d", device, info->type);
return;
}
if (info->factory == NULL) {
pw_log_warn("device %p: missing factory", device);
return;
}
pw_log_debug("device %p: add node %d", device, id);
support = pw_core_get_support(device->core, &n_support);