Major refactoring in progress

2024-04-09 00:34:35 +02:00
parent 79a8f93572
commit 1e1450178f
9 changed files with 1360 additions and 80 deletions
@@ -0,0 +1,148 @@
+
+#define IO_VERSION_MAJOR 0
+#define IO_VERSION_MINOR 0
+
+#ifdef _WIN32
+#   define IO_PLATFORM_WINDOWS 1
+#   define IO_PLATFORM_LINUX   0
+#   define IO_PLATFORM_OTHER   0
+#elif __linux__
+#   define IO_PLATFORM_WINDOWS 0
+#   define IO_PLATFORM_LINUX   1
+#   define IO_PLATFORM_OTHER   0
+#else
+#   define IO_PLATFORM_WINDOWS 0
+#   define IO_PLATFORM_LINUX   0
+#   define IO_PLATFORM_OTHER   0
+#endif
+
+#if IO_PLATFORM_WINDOWS
+typedef void *io_os_handle;
+#endif
+
+#if IO_PLATFORM_LINUX
+typedef int io_os_handle;
+#endif
+
+typedef uint32_t io_handle;
+#define IO_INVALID ((uint32_t) -1)
+
+struct io_os_overlap {
+    unsigned long *internal;
+    unsigned long *internal_high;
+    union {
+        struct {
+            unsigned long offset;
+            unsigned long offset_high;
+        };
+        void *pointer;
+    };
+    void *event;
+}:
+
+enum io_optype {
+    IO_VOID,
+    IO_RECV,
+    IO_SEND,
+    IO_ACCEPT,
+};
+
+#define IO_SOCKADDR_IN_SIZE 16
+
+struct io_operation {
+
+    enum io_optype type;
+    struct io_resource *res;
+    void *user;
+
+    #if IO_PLATFORM_WINDOWS
+    struct io_os_handle accepted;
+    struct io_os_overlap ov;
+    char accept_buffer[2 * (IO_SOCKADDR_IN_SIZE + 16)];
+    #endif
+};
+
+enum io_restype {
+    IO_RES_VOID,
+    IO_RES_FILE,
+    IO_RES_SOCKET,
+};
+
+struct io_resource {
+    enum io_restype type;
+    io_os_handle os_handle;
+    uint16_t pending;
+};
+
+struct io_context {
+    io_os_handle os_handle;
+    uint16_t max_res;
+    uint16_t max_ops;
+    struct io_resource *res;
+    struct io_operation *ops;
+};
+
+enum io_evtype {
+    IO_ERROR,
+    IO_ABORT,
+    IO_COMPLETE,
+};
+
+struct io_event {
+    enum io_evtype evtype;
+    enum io_optype optype;
+    io_handle handle;
+    void *user;
+
+    union {
+        uint32_t num;
+        io_handle accepted;
+    };
+};
+
+bool io_global_init(void);
+void io_global_free(void);
+
+bool io_init(struct io_context   *ioc,
+             struct io_resource  *res,
+             struct io_operation *ops,
+             uint16_t max_res,
+             uint16_t max_ops);
+
+void io_free(struct io_context *ioc);
+
+void io_wait(struct io_context *ioc,
+             struct io_event *ev);
+
+bool io_recv(struct io_context *ioc,
+             void *user, io_handle handle,
+             void *dsc, uint32_t max);
+
+bool io_send(struct io_context *ioc,
+             void *user, io_handle handle,
+             void *src, uint32_t num);
+
+bool io_accept(struct io_context *ioc,
+               void *user, io_handle handle);
+
+void io_close(struct io_context *ioc,
+              io_handle handle);
+
+/*
+ * Flags for io_open_file and io_create_file
+ */
+enum {
+    IO_ACCESS_RD = 1 << 0,
+    IO_ACCESS_WR = 1 << 1,
+    IO_CREATE_OVERWRITE = 1 << 2,
+    IO_CREATE_CANTEXIST = 1 << 3,
+};
+
+io_handle io_open_file(struct io_context *ioc,
+                       const char *file, int flags);
+
+io_handle io_create_file(struct io_context *ioc,
+                         const char *file, int flags);
+
+io_handle io_start_server(struct io_context *ioc,
+                          const char *addr, int port);