initial

1 files changed, 61 insertions, 0 deletions

diff --git a/include/uv_link.h b/include/uv_link.h
new file mode 100644
index 0000000..2d2b744
--- /dev/null
+++ b/include/uv_link.h
@@ -0,0 +1,61 @@
+#ifndef INCLUDE_UV_LINK_H_
+#define INCLUDE_UV_LINK_H_
+
+#include <uv.h>
+
+typedef struct uv_link_s uv_link_t;
+typedef struct uv_link_source_s uv_link_source_t;
+
+typedef void (*uv_link_close_cb)(uv_link_t* link);
+typedef void (*uv_link_alloc_cb)(uv_link_t* link,
+                                 size_t suggested_size,
+                                 uv_buf_t* buf);
+typedef void (*uv_link_read_cb)(uv_link_t* link,
+                                ssize_t nread,
+                                const uv_buf_t* buf);
+typedef void (*uv_link_write_cb)(uv_link_t* link, int status);
+typedef void (*uv_link_shutdown_cb)(uv_link_t* link, int status);
+
+struct uv_link_s {
+  uv_link_t* parent;
+  uv_link_t* child;
+
+  uv_link_alloc_cb alloc_cb;
+  uv_link_read_cb read_cb;
+
+  /* Sort of virtual table */
+  int (*read_start)(uv_link_t* link);
+  int (*read_stop)(uv_link_t* link);
+
+  int (*write)(uv_link_t* link,
+               const uv_buf_t bufs[],
+               unsigned int nbufs,
+               uv_stream_t* send_handle,
+               uv_link_write_cb cb);
+  int (*try_write)(uv_link_t* link,
+                   const uv_buf_t bufs[],
+                   unsigned int nbufs);
+
+  int (*shutdown)(uv_link_t* link, uv_link_shutdown_cb cb);
+};
+
+struct uv_link_source_s {
+  uv_link_t link;
+
+  uv_stream_t* stream;
+};
+
+UV_EXTERN int uv_link_init(uv_loop_t* loop, uv_link_t* link);
+UV_EXTERN int uv_link_close(uv_link_t* link, uv_link_close_cb close_cb);
+
+UV_EXTERN int uv_link_chain(uv_link_t* from, uv_link_t* to);
+
+/* Source */
+
+/* NOTE: uses `stream->data` field */
+UV_EXTERN int uv_link_source_init(uv_loop_t* loop,
+                                  uv_link_source_t* source,
+                                  uv_stream_t* stream);
+UV_EXTERN int uv_link_source_destroy(uv_link_source_t* source);
+
+#endif  /* INCLUDE_UV_LINK_H_ */