lib: add wpipc library

Simple library that uses sockets for inter-process communication. It provides an
API to create server and client objects. Users can add custom handlers in the
server, and clients can send requests for those custom handlers.

Signed-off-by: George Kiagiadakis <george.kiagiadakis@collabora.com>

1 files changed, 85 insertions, 0 deletions

diff --git a/lib/server.h b/lib/server.h
new file mode 100644
index 0000000..3cc0ed9
--- /dev/null
+++ b/lib/server.h
@@ -0,0 +1,85 @@
+/* PipeWire AGL Cluster IPC
+ *
+ * Copyright © 2021 Collabora Ltd.
+ *    @author Julian Bouzas <julian.bouzas@collabora.com>
+ *
+ * SPDX-License-Identifier: MIT
+ */
+
+#ifndef __ICIPC_SERVER_H__
+#define __ICIPC_SERVER_H__
+
+#include <spa/pod/pod.h>
+
+#include "defs.h"
+
+#include "receiver.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define icipc_server_to_receiver(self) ((struct icipc_receiver *)(self))
+
+struct icipc_server;
+
+typedef void (*icipc_server_client_handler_func_t) (struct icipc_server *self,
+                                                    int client_fd,
+                                                    enum icipc_receiver_sender_state client_state,
+                                                    void *data);
+
+typedef bool (*icipc_server_request_handler_func_t) (struct icipc_server *self,
+                                                     int client_fd,
+                                                     const char *name,
+                                                     const struct spa_pod *args,
+                                                     void *data);
+
+ICIPC_API
+struct icipc_server *
+icipc_server_new (const char *path, bool start);
+
+ICIPC_API
+void
+icipc_server_free (struct icipc_server *self);
+
+ICIPC_API
+void
+icipc_server_set_client_handler (struct icipc_server *self,
+                                 icipc_server_client_handler_func_t handler,
+                                 void *data);
+
+ICIPC_API
+void
+icipc_server_clear_client_handler (struct icipc_server *self);
+
+ICIPC_API
+bool
+icipc_server_set_request_handler (struct icipc_server *self,
+                                  const char *name,
+                                  icipc_server_request_handler_func_t handler,
+                                  void *data);
+
+ICIPC_API
+void
+icipc_server_clear_request_handler (struct icipc_server *self,
+                                    const char *name);
+
+/* for request handlers only */
+
+ICIPC_API
+bool
+icipc_server_reply_ok (struct icipc_server *self,
+                       int client_fd,
+                       const struct spa_pod *value);
+
+ICIPC_API
+bool
+icipc_server_reply_error (struct icipc_server *self,
+                          int client_fd,
+                          const char *msg);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif