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interface: add an interface struct

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The interface struct has the type,version and methods of the
interface.
Make spa interfaces extend from spa_interface and make a
separate structure for the methods.
Pass a generic void* as the first argument of methods, like
we don in PipeWire.
Bundle the methods + implementation in a versioned inteface
and use that to invoke methods. This way we can do version
checks on the methods.
Make resource and proxy interfaces that we can can call. We
can then make the core interfaces independent on proxy/resource and
hide them in the lower layers.
Add add_listener method to methods of core interfaces, just
like SPA.
This commit is contained in:
Wim Taymans 2019-05-20 16:11:23 +02:00
parent eb6481efb3
commit ff946e3d4b
85 changed files with 3051 additions and 3000 deletions
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35
src/pipewire/private.h
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@ -36,6 +36,7 @@ extern "C" {
#include "pipewire/remote.h"
#include "pipewire/mem.h"
#include "pipewire/introspect.h"
#include "pipewire/interfaces.h"
#include "pipewire/stream.h"
#include "pipewire/log.h"
@ -170,6 +171,38 @@ struct pw_global {
#define pw_core_emit_global_added(c,g) pw_core_emit(c, global_added, 0, g)
#define pw_core_emit_global_removed(c,g) pw_core_emit(c, global_removed, 0, g)
#define pw_core_resource(r,m,v,...) pw_resource_notify(r, struct pw_core_proxy_events, m, v, ##__VA_ARGS__)
#define pw_core_resource_info(r,...) pw_core_resource(r,info,0,__VA_ARGS__)
#define pw_core_resource_done(r,...) pw_core_resource(r,done,0,__VA_ARGS__)
#define pw_core_resource_ping(r,...) pw_core_resource(r,ping,0,__VA_ARGS__)
#define pw_core_resource_error(r,...) pw_core_resource(r,error,0,__VA_ARGS__)
#define pw_core_resource_remove_id(r,...) pw_core_resource(r,remove_id,0,__VA_ARGS__)
static inline void
pw_core_resource_errorv(struct pw_resource *resource, uint32_t id, int seq,
int res, const char *message, va_list args)
{
char buffer[1024];
vsnprintf(buffer, sizeof(buffer), message, args);
buffer[1023] = '\0';
pw_core_resource_error(resource, id, seq, res, buffer);
}
static inline void
pw_core_resource_errorf(struct pw_resource *resource, uint32_t id, int seq,
int res, const char *message, ...)
{
va_list args;
va_start(args, message);
pw_core_resource_errorv(resource, id, seq, res, message, args);
va_end(args);
}
#define pw_registry_resource(r,m,v,...) pw_resource_notify(r, struct pw_registry_proxy_events,m,v,##__VA_ARGS__)
#define pw_registry_resource_global(r,...) pw_registry_resource(r,global,0,__VA_ARGS__)
#define pw_registry_resource_global_remove(r,...) pw_registry_resource(r,global_remove,0,__VA_ARGS__)
struct pw_core {
struct pw_global *global; /**< the global of the core */
struct spa_hook global_listener;
@ -592,6 +625,7 @@ struct pw_link {
#define pw_resource_emit_error(o,s,r,m) pw_resource_emit(o, error, 0, s, r, m)
struct pw_resource {
struct spa_interface impl; /**< event implementation */
struct pw_core *core; /**< the core object */
struct spa_list link; /**< link in object resource_list */
@ -620,6 +654,7 @@ struct pw_resource {
#define pw_proxy_emit_error(p,s,r,m) pw_proxy_emit(p, error, 0, s, r, m)
struct pw_proxy {
struct spa_interface impl; /**< method implementation */
struct pw_remote *remote; /**< the owner remote of this proxy */
struct spa_list link; /**< link in the remote */