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, 97 insertions, 0 deletions

diff --git a/lib/private.h b/lib/private.h
new file mode 100644
index 0000000..55d87a3
--- /dev/null
+++ b/lib/private.h
@@ -0,0 +1,97 @@
+/* PipeWire AGL Cluster IPC
+ *
+ * Copyright © 2021 Collabora Ltd.
+ *    @author Julian Bouzas <julian.bouzas@collabora.com>
+ *
+ * SPDX-License-Identifier: MIT
+ */
+
+#ifndef __ICIPC_PRIVATE_H__
+#define __ICIPC_PRIVATE_H__
+
+#include <stdbool.h>
+#include <stdint.h>
+#include <pthread.h>
+#include <stddef.h>
+#include <sys/types.h>
+#include <stdarg.h>
+
+#include "defs.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* log */
+
+#define icipc_log_info(F, ...) \
+    icipc_log(ICIPC_LOG_LEVEL_INFO, (F), ##__VA_ARGS__)
+#define icipc_log_warn(F, ...) \
+    icipc_log(ICIPC_LOG_LEVEL_WARN, (F), ##__VA_ARGS__)
+#define icipc_log_error(F, ...) \
+    icipc_log(ICIPC_LOG_LEVEL_ERROR, (F), ##__VA_ARGS__)
+
+enum icipc_log_level {
+  ICIPC_LOG_LEVEL_NONE = 0,
+  ICIPC_LOG_LEVEL_ERROR,
+  ICIPC_LOG_LEVEL_WARN,
+  ICIPC_LOG_LEVEL_INFO,
+};
+
+void
+icipc_logv (enum icipc_log_level level,
+            const char *fmt,
+            va_list args) __attribute__ ((format (printf, 2, 0)));
+
+void
+icipc_log (enum icipc_log_level level,
+           const char *fmt,
+           ...) __attribute__ ((format (printf, 2, 3)));
+
+/* socket */
+
+ssize_t
+icipc_socket_write (int fd, const uint8_t *buffer, size_t size);
+
+ssize_t
+icipc_socket_read (int fd, uint8_t **buffer, size_t *max_size);
+
+/* epoll thread */
+
+struct epoll_thread;
+
+typedef void (*icipc_epoll_thread_event_funct_t) (struct epoll_thread *self,
+                                                  int fd,
+                                                  void *data);
+
+struct epoll_thread {
+  int socket_fd;
+  int epoll_fd;
+  int event_fd;
+  pthread_t thread;
+  icipc_epoll_thread_event_funct_t socket_event_func;
+  icipc_epoll_thread_event_funct_t other_event_func;
+  void *event_data;
+};
+
+bool
+icipc_epoll_thread_init (struct epoll_thread *self,
+                         int socket_fd,
+                         icipc_epoll_thread_event_funct_t sock_func,
+                         icipc_epoll_thread_event_funct_t other_func,
+                         void *data);
+
+bool
+icipc_epoll_thread_start (struct epoll_thread *self);
+
+void
+icipc_epoll_thread_stop (struct epoll_thread *self);
+
+void
+icipc_epoll_thread_destroy (struct epoll_thread *self);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif