windows: fix handling closed socket while poll handle is closing

fixes joyent#1278

(backport from master for v0.10 branch)

build.mk

@@ -102,6 +102,7 @@ TESTS= \
 	test/test-platform-output.o \
 	test/test-poll.o \
 	test/test-poll-close.o \
+	test/test-poll-closesocket.o \
 	test/test-process-title.o \
 	test/test-ref.o \
 	test/test-run-nowait.o \

src/win/poll.c

@@ -187,7 +187,8 @@ static void uv__fast_poll_process_poll_req(uv_loop_t* loop, uv_poll_t* handle,
     if (afd_poll_info->Handles[0].Events & AFD_POLL_LOCAL_CLOSE) {
       /* Stop polling. */
       handle->events = 0;
-      uv__handle_stop(handle);
+      if (uv__is_active(handle))
+        uv__handle_stop(handle);
     }
 
     if (events != 0) {

test/test-list.h

@@ -215,6 +215,7 @@ TEST_DECLARE   (poll_duplex)
 TEST_DECLARE   (poll_unidirectional)
 TEST_DECLARE   (poll_close)
 #ifdef _WIN32
+TEST_DECLARE   (poll_closesocket)
 TEST_DECLARE   (spawn_detect_pipe_name_collisions_on_windows)
 TEST_DECLARE   (argument_escaping)
 TEST_DECLARE   (environment_creation)
@@ -449,6 +450,7 @@ TASK_LIST_START
   TEST_ENTRY  (kill)
 
 #ifdef _WIN32
+  TEST_ENTRY  (poll_closesocket)
   TEST_ENTRY  (spawn_detect_pipe_name_collisions_on_windows)
   TEST_ENTRY  (argument_escaping)
   TEST_ENTRY  (environment_creation)

test/test-poll-closesocket.c

@@ -0,0 +1,89 @@
+/* Copyright Joyent, Inc. and other Node contributors. All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#ifdef _WIN32
+
+#include <errno.h>
+
+#include "uv.h"
+#include "task.h"
+
+uv_os_sock_t sock;
+uv_poll_t handle;
+
+static int close_cb_called = 0;
+
+
+static void close_cb(uv_handle_t* h) {
+  close_cb_called++;
+}
+
+
+static void poll_cb(uv_poll_t* h, int status, int events) {
+  int r;
+
+  ASSERT(status == 0);
+  ASSERT(h == &handle);
+
+  r = uv_poll_start(&handle, UV_READABLE, poll_cb);
+  ASSERT(r == 0);
+
+  closesocket(sock);
+  uv_close((uv_handle_t*) &handle, close_cb);
+
+}
+
+
+TEST_IMPL(poll_closesocket) {
+  struct WSAData wsa_data;
+  int r;
+  unsigned long on;
+  struct sockaddr_in addr;
+
+  r = WSAStartup(MAKEWORD(2, 2), &wsa_data);
+  ASSERT(r == 0);
+
+  sock = socket(AF_INET, SOCK_STREAM, 0);
+  ASSERT(sock != INVALID_SOCKET);
+  on = 1;
+  r = ioctlsocket(sock, FIONBIO, &on);
+  ASSERT(r == 0);
+
+  r = uv_ip4_addr("127.0.0.1", TEST_PORT, &addr);
+  ASSERT(r == 0);
+
+  r = connect(sock, (const struct sockaddr*) &addr, sizeof addr);
+  ASSERT(r != 0);
+  ASSERT(WSAGetLastError() == WSAEWOULDBLOCK);
+
+  r = uv_poll_init_socket(uv_default_loop(), &handle, sock);
+  ASSERT(r == 0);
+  r = uv_poll_start(&handle, UV_WRITABLE, poll_cb);
+  ASSERT(r == 0);
+
+  uv_run(uv_default_loop(), UV_RUN_DEFAULT);
+
+  ASSERT(close_cb_called == 1);
+
+  MAKE_VALGRIND_HAPPY();
+  return 0;
+}
+#endif

uv.gyp

@@ -322,6 +322,7 @@
         'test/test-platform-output.c',
         'test/test-poll.c',
         'test/test-poll-close.c',
+        'test/test-poll-closesocket.c',
         'test/test-process-title.c',
         'test/test-ref.c',
         'test/test-run-nowait.c',