From f4cd2655fa103edba20ac0f34e612b70e5fbe261 Mon Sep 17 00:00:00 2001
From: Bert Belder <bertbelder@gmail.com>
Date: Wed, 24 Aug 2011 00:24:24 +0200
Subject: [PATCH 1/1] Define uv_object_t, a base class for handles and
 requests

---
 include/uv-unix.h |    2 ++
 include/uv-win.h  |    3 +++
 include/uv.h      |   31 +++++++++++++++++++------------
 src/uv-unix.c     |    2 +-
 src/win/req.c     |    2 +-
 5 files changed, 26 insertions(+), 14 deletions(-)

diff --git a/include/uv-unix.h b/include/uv-unix.h
index e918e4d..62498a7 100644
--- a/include/uv-unix.h
+++ b/include/uv-unix.h
@@ -39,6 +39,8 @@ typedef struct {
   size_t len;
 } uv_buf_t;

+#define UV_OBJECT_PRIVATE_FIELDS /* empty */
+
 #define UV_REQ_BUFSML_SIZE (4)

 #define UV_REQ_PRIVATE_FIELDS  /* empty */
diff --git a/include/uv-win.h b/include/uv-win.h
index a3ad457..a150011 100644
--- a/include/uv-win.h
+++ b/include/uv-win.h
@@ -51,6 +51,9 @@ typedef struct uv_buf_t {
   UV_PROCESS_CLOSE,                       \
   UV_UDP_RECV

+#define UV_OBJECT_PRIVATE_FIELDS          \
+  /* empty */
+
 #define UV_REQ_PRIVATE_FIELDS             \
   union {                                 \
     /* Used by I/O operations */          \
diff --git a/include/uv.h b/include/uv.h
index 2dd5034..30334a0 100644
--- a/include/uv.h
+++ b/include/uv.h
@@ -42,6 +42,7 @@ typedef intptr_t ssize_t;
 #endif

 typedef struct uv_err_s uv_err_t;
+typedef struct uv_object_s uv_object_t;
 typedef struct uv_handle_s uv_handle_t;
 typedef struct uv_stream_s uv_stream_t;
 typedef struct uv_tcp_s uv_tcp_t;
@@ -173,7 +174,7 @@ typedef enum {
 } uv_err_code;

 typedef enum {
-  UV_UNKNOWN_HANDLE = 0,
+  UV_UNKNOWN_OBJECT = 0,
   UV_TCP,
   UV_UDP,
   UV_NAMED_PIPE,
@@ -187,11 +188,7 @@ typedef enum {
   UV_ARES_TASK,
   UV_ARES_EVENT,
   UV_GETADDRINFO,
-  UV_PROCESS
-} uv_handle_type;
-
-typedef enum {
-  UV_UNKNOWN_REQ = 0,
+  UV_PROCESS,
   UV_CONNECT,
   UV_ACCEPT,
   UV_READ,
@@ -200,7 +197,7 @@ typedef enum {
   UV_WAKEUP,
   UV_UDP_SEND,
   UV_REQ_TYPE_PRIVATE
-} uv_req_type;
+} uv_object_type;


 struct uv_err_s {
@@ -221,9 +218,20 @@ char* uv_strerror(uv_err_t err);
 const char* uv_err_name(uv_err_t err);


-#define UV_REQ_FIELDS \
+#define UV_OBJECT_FIELDS \
   /* read-only */ \
-  uv_req_type type; \
+  uv_object_type type; \
+  /* private */ \
+  UV_OBJECT_PRIVATE_FIELDS
+
+/* Abstract base class of all requests and handles. */
+struct uv_object_s {
+  UV_OBJECT_FIELDS
+};
+
+
+#define UV_REQ_FIELDS \
+  UV_OBJECT_FIELDS \
   /* public */ \
   void* data; \
   /* private */ \
@@ -258,15 +266,14 @@ struct uv_shutdown_s {


 #define UV_HANDLE_FIELDS \
-  /* read-only */ \
-  uv_handle_type type; \
+  UV_OBJECT_FIELDS \
   /* public */ \
   uv_close_cb close_cb; \
   void* data; \
   /* private */ \
   UV_HANDLE_PRIVATE_FIELDS

-/* The abstract base class of all handles.  */
+/* The abstract base class of all handles. */
 struct uv_handle_s {
   UV_HANDLE_FIELDS
 };
diff --git a/src/uv-unix.c b/src/uv-unix.c
index 1cb418c..bb2d74e 100644
--- a/src/uv-unix.c
+++ b/src/uv-unix.c
@@ -1824,7 +1824,7 @@ int uv_read_stop(uv_stream_t* stream) {

 void uv__req_init(uv_req_t* req) {
   uv_counters()->req_init++;
-  req->type = UV_UNKNOWN_REQ;
+  req->type = UV_UNKNOWN_OBJECT;
   req->data = NULL;
 }

diff --git a/src/win/req.c b/src/win/req.c
index 12c5346..62cbed9 100644
--- a/src/win/req.c
+++ b/src/win/req.c
@@ -28,7 +28,7 @@

 void uv_req_init(uv_req_t* req) {
   uv_counters()->req_init++;
-  req->type = UV_UNKNOWN_REQ;
+  req->type = UV_UNKNOWN_OBJECT;
   SET_REQ_SUCCESS(req);
 }

--
1.7.6.msysgit.0