Split project over multiple files

2025-10-28 17:24:25 +01:00
parent 017c2c3428
commit c5a21608d7
24 changed files with 5145 additions and 5113 deletions
@@ -0,0 +1,80 @@
+#ifndef MESSAGE_INCLUDED
+#define MESSAGE_INCLUDED
+
+#include <stdbool.h>
+
+#include "byte_queue.h"
+
+enum {
+
+    // Client -> Metadata server
+    MESSAGE_TYPE_CREATE,
+    MESSAGE_TYPE_DELETE,
+    MESSAGE_TYPE_LIST,
+    MESSAGE_TYPE_READ,
+    MESSAGE_TYPE_WRITE,
+
+    // Client -> Chunk server
+    MESSAGE_TYPE_CREATE_CHUNK,
+    MESSAGE_TYPE_UPLOAD_CHUNK,
+    MESSAGE_TYPE_DOWNLOAD_CHUNK,
+
+    // Metadata server -> Client
+    MESSAGE_TYPE_CREATE_ERROR,
+    MESSAGE_TYPE_CREATE_SUCCESS,
+    MESSAGE_TYPE_DELETE_ERROR,
+    MESSAGE_TYPE_DELETE_SUCCESS,
+    MESSAGE_TYPE_LIST_ERROR,
+    MESSAGE_TYPE_LIST_SUCCESS,
+    MESSAGE_TYPE_READ_ERROR,
+    MESSAGE_TYPE_READ_SUCCESS,
+    MESSAGE_TYPE_WRITE_ERROR,
+    MESSAGE_TYPE_WRITE_SUCCESS,
+
+    // Metadata server -> Chunk server
+    MESSAGE_TYPE_STATE_UPDATE,
+    MESSAGE_TYPE_DOWNLOAD_LOCATIONS,
+
+    // Chunk server -> Metadata server
+    MESSAGE_TYPE_AUTH,
+    MESSAGE_TYPE_STATE_UPDATE_ERROR,
+    MESSAGE_TYPE_STATE_UPDATE_SUCCESS,
+
+    // Chunk server -> Client
+    MESSAGE_TYPE_CREATE_CHUNK_ERROR,
+    MESSAGE_TYPE_CREATE_CHUNK_SUCCESS,
+    MESSAGE_TYPE_UPLOAD_CHUNK_ERROR,
+    MESSAGE_TYPE_UPLOAD_CHUNK_SUCCESS,
+    MESSAGE_TYPE_DOWNLOAD_CHUNK_ERROR,
+    MESSAGE_TYPE_DOWNLOAD_CHUNK_SUCCESS,
+};
+
+#define MESSAGE_VERSION 1
+
+typedef struct {
+    uint8_t *src;
+    int      len;
+    int      cur;
+} BinaryReader;
+
+typedef struct {
+    uint16_t version;
+    uint16_t type;
+    uint32_t length;
+} MessageHeader;
+
+typedef struct {
+    ByteQueue *output;
+    ByteQueueOffset start;
+    ByteQueueOffset patch;
+} MessageWriter;
+
+bool binary_read(BinaryReader *reader, void *dst, int len);
+
+void message_writer_init(MessageWriter *writer, ByteQueue *output, uint16_t type);
+bool message_writer_free(MessageWriter *writer);
+void message_write(MessageWriter *writer, void *mem, int len);
+
+int  message_peek(ByteView msg, uint16_t *type, uint32_t *len);
+
+#endif // MESSAGE_INCLUDED