1 files changed, 45 insertions, 0 deletions
diff --git a/src/ipc/ipc-group.h b/src/ipc/ipc-group.h
new file mode 100644
index 0000000..c993f5a
--- /dev/null
+++ b/src/ipc/ipc-group.h
@@ -0,0 +1,45 @@
+#ifndef IPC_GROUP_H
+#define IPC_GROUP_H
+
+enum ipc_cmd_status {
+	/* Command received a reply line */
+	IPC_CMD_STATUS_REPLY,
+	/* Command finished successfully */
+	IPC_CMD_STATUS_OK,
+	/* Command finished with errors */
+	IPC_CMD_STATUS_ERROR
+};
+
+struct ipc_group {
+	int listen_fd;
+	char *name;
+
+	/* connections list also acts as a refcount */
+	struct ipc_connection *connections;
+};
+
+/* line is non-NULL only with IPC_CMD_STATUS_REPLY.
+   Each line begins with the connection ID and TAB. */
+typedef void ipc_cmd_callback_t(enum ipc_cmd_status status,
+				const char *line, void *context);
+
+struct ipc_group *ipc_group_alloc(int listen_fd);
+void ipc_group_free(struct ipc_group **group);
+
+struct ipc_group *ipc_group_lookup_listen_fd(int listen_fd);
+struct ipc_group *ipc_group_lookup_name(const char *name);
+
+/* Returns 0 if name is ok, -1 if name doesn't match the existing one. */
+int ipc_group_update_name(struct ipc_group *group, const char *name);
+
+/* Send a command to all connections in a group. All connections are expected
+   to answer something. If there are no connections, callback() is called
+   immediately and FALSE is returned. */
+bool ipc_group_cmd(struct ipc_group *group, const char *cmd,
+		   ipc_cmd_callback_t *callback, void *context);
+
+void ipc_groups_init(void);
+void ipc_groups_deinit(void);
+void ipc_groups_disconnect_all(void);
+
+#endif