Upgrade libuv to 1028a9c6a75fde47b848c09c450fc066249fac1b

6 files changed, 155 insertions, 78 deletions

diff --git a/deps/uv/msvs/libuv-test.vcxproj b/deps/uv/msvs/libuv-test.vcxproj
index da93bd99a85..cb64f194e35 100644
--- a/deps/uv/msvs/libuv-test.vcxproj
+++ b/deps/uv/msvs/libuv-test.vcxproj
@@ -160,6 +160,7 @@
     <ClCompile Include="..\test\runner-win.c" />
     <ClCompile Include="..\test\runner.c" />
     <ClCompile Include="..\test\test-pipe-bind-error.c" />
+    <ClCompile Include="..\test\test-ref.c" />
     <ClCompile Include="..\test\test-shutdown-eof.c" />
     <ClCompile Include="..\test\test-tcp-bind-error.c" />
     <ClCompile Include="..\test\test-tcp-bind6-error.c" />
diff --git a/deps/uv/src/uv-unix.c b/deps/uv/src/uv-unix.c
index ff1f80d824b..52ce5b2c9b1 100644
--- a/deps/uv/src/uv-unix.c
+++ b/deps/uv/src/uv-unix.c
@@ -88,6 +88,7 @@ static int uv__nonblock(int fd, int set) __attribute__((unused));
 
 static int uv__socket(int domain, int type, int protocol);
 static int uv__accept(int sockfd, struct sockaddr* saddr, socklen_t len);
+static int uv__close(int fd);
 
 size_t uv__strlcpy(char* dst, const char* src, size_t size);
 
@@ -329,7 +330,7 @@ int uv__bind(uv_tcp_t* tcp, int domain, struct sockaddr* addr, int addrsize) {
 
     if (uv__stream_open((uv_stream_t*)tcp, fd)) {
       status = -2;
-      close(fd);
+      uv__close(fd);
       goto out;
     }
   }
@@ -464,7 +465,7 @@ int uv_accept(uv_handle_t* server, uv_stream_t* client) {
   if (uv__stream_open(streamClient, streamServer->accepted_fd)) {
     /* TODO handle error */
     streamServer->accepted_fd = -1;
-    close(streamServer->accepted_fd);
+    uv__close(streamServer->accepted_fd);
     goto out;
   }
 
@@ -494,7 +495,7 @@ int uv_tcp_listen(uv_tcp_t* tcp, int backlog, uv_connection_cb cb) {
     }
 
     if (uv__stream_open((uv_stream_t*)tcp, fd)) {
-      close(fd);
+      uv__close(fd);
       return -1;
     }
   }
@@ -554,11 +555,11 @@ void uv__finish_close(uv_handle_t* handle) {
       assert(!ev_is_active(&stream->read_watcher));
       assert(!ev_is_active(&stream->write_watcher));
 
-      close(stream->fd);
+      uv__close(stream->fd);
       stream->fd = -1;
 
       if (stream->accepted_fd >= 0) {
-        close(stream->accepted_fd);
+        uv__close(stream->accepted_fd);
         stream->accepted_fd = -1;
       }
       break;
@@ -678,12 +679,14 @@ static uv_write_t* uv__write(uv_stream_t* stream) {
    * inside the iov each time we write. So there is no need to offset it.
    */
 
-  if (iovcnt == 1) {
-    n = write(stream->fd, iov[0].iov_base, iov[0].iov_len);
-  }
-  else {
-    n = writev(stream->fd, iov, iovcnt);
+  do {
+    if (iovcnt == 1) {
+      n = write(stream->fd, iov[0].iov_base, iov[0].iov_len);
+    } else {
+      n = writev(stream->fd, iov, iovcnt);
+    }
   }
+  while (n == -1 && errno == EINTR);
 
   if (n < 0) {
     if (errno != EAGAIN) {
@@ -799,7 +802,10 @@ static void uv__read(uv_stream_t* stream) {
 
     iov = (struct iovec*) &buf;
 
-    nread = read(stream->fd, buf.base, buf.len);
+    do {
+      nread = read(stream->fd, buf.base, buf.len);
+    }
+    while (nread == -1 && errno == EINTR);
 
     if (nread < 0) {
       /* Error */
@@ -964,7 +970,7 @@ static int uv__connect(uv_connect_t* req,
     }
 
     if (uv__stream_open(stream, sockfd)) {
-      close(sockfd);
+      uv__close(sockfd);
       return -2;
     }
   }
@@ -987,7 +993,10 @@ static int uv__connect(uv_connect_t* req,
 
   stream->connect_req = req;
 
-  r = connect(stream->fd, addr, addrlen);
+  do {
+    r = connect(stream->fd, addr, addrlen);
+  }
+  while (r == -1 && errno == EINTR);
 
   stream->delayed_error = 0;
 
@@ -1839,7 +1848,7 @@ out:
       /* unlink() before close() to avoid races. */
       unlink(name);
     }
-    close(sockfd);
+    uv__close(sockfd);
     free((void*)name);
   }
 
@@ -1875,6 +1884,7 @@ int uv_pipe_connect(uv_connect_t* req,
   int saved_errno;
   int sockfd;
   int status;
+  int r;
 
   saved_errno = errno;
   sockfd = -1;
@@ -1892,9 +1902,14 @@ int uv_pipe_connect(uv_connect_t* req,
   /* We don't check for EINPROGRESS. Think about it: the socket
    * is either there or not.
    */
-  if (connect(sockfd, (struct sockaddr*)&sun, sizeof sun) == -1) {
+  do {
+    r = connect(sockfd, (struct sockaddr*)&sun, sizeof sun);
+  }
+  while (r == -1 && errno == EINTR);
+
+  if (r == -1) {
     uv_err_new((uv_handle_t*)handle, errno);
-    close(sockfd);
+    uv__close(sockfd);
     goto out;
   }
 
@@ -1971,7 +1986,7 @@ static int uv__socket(int domain, int type, int protocol) {
   }
 
   if (uv__nonblock(sockfd, 1) == -1 || uv__cloexec(sockfd, 1) == -1) {
-    close(sockfd);
+    uv__close(sockfd);
     return -1;
   }
 
@@ -1981,22 +1996,40 @@ static int uv__socket(int domain, int type, int protocol) {
 
 
 static int uv__accept(int sockfd, struct sockaddr* saddr, socklen_t slen) {
-#if defined(SOCK_NONBLOCK) && defined(SOCK_CLOEXEC)
-  return accept4(sockfd, saddr, &slen, SOCK_NONBLOCK | SOCK_CLOEXEC);
-#else
   int peerfd;
 
-  if ((peerfd = accept(sockfd, saddr, &slen)) == -1) {
-    return -1;
+  do {
+#if defined(SOCK_NONBLOCK) && defined(SOCK_CLOEXEC)
+    peerfd = accept4(sockfd, saddr, &slen, SOCK_NONBLOCK | SOCK_CLOEXEC);
+#else
+    if ((peerfd = accept(sockfd, saddr, &slen)) != -1) {
+      if (uv__cloexec(peerfd, 1) == -1 || uv__nonblock(peerfd, 1) == -1) {
+        uv__close(peerfd);
+        return -1;
+      }
+    }
+#endif
   }
+  while (peerfd == -1 && errno == EINTR);
 
-  if (uv__cloexec(peerfd, 1) == -1 || uv__nonblock(peerfd, 1) == -1) {
-    close(peerfd);
-    return -1;
+  return peerfd;
+}
+
+
+static int uv__close(int fd) {
+  int status;
+
+  /*
+   * Retry on EINTR. You may think this is academic but on linux
+   * and probably other Unices too, close(2) is interruptible.
+   * Failing to handle EINTR is a common source of fd leaks.
+   */
+  do {
+    status = close(fd);
   }
+  while (status == -1 && errno == EINTR);
 
-  return peerfd;
-#endif
+  return status;
 }
 
 
diff --git a/deps/uv/src/win/core.c b/deps/uv/src/win/core.c
index ed870efebe6..21470f9c91f 100644
--- a/deps/uv/src/win/core.c
+++ b/deps/uv/src/win/core.c
@@ -145,7 +145,7 @@ int uv_run() {
 
     uv_prepare_invoke();
 
-    uv_poll(LOOP->idle_handles == NULL);
+    uv_poll(LOOP->idle_handles == NULL && LOOP->refs > 0);
 
     uv_check_invoke();
   }
diff --git a/deps/uv/test/test-list.h b/deps/uv/test/test-list.h
index 8b9ecfcca7f..de9f1d3addb 100644
--- a/deps/uv/test/test-list.h
+++ b/deps/uv/test/test-list.h
@@ -53,6 +53,7 @@ TEST_DECLARE   (idle_ref)
 TEST_DECLARE   (async_ref)
 TEST_DECLARE   (prepare_ref)
 TEST_DECLARE   (check_ref)
+TEST_DECLARE   (unref_in_prepare_cb)
 TEST_DECLARE   (async)
 TEST_DECLARE   (get_currentexe)
 TEST_DECLARE   (hrtime)
@@ -121,6 +122,7 @@ TASK_LIST_START
   TEST_ENTRY  (async_ref)
   TEST_ENTRY  (prepare_ref)
   TEST_ENTRY  (check_ref)
+  TEST_ENTRY  (unref_in_prepare_cb)
 
   TEST_ENTRY  (loop_handles)
 
diff --git a/deps/uv/test/test-loop-handles.c b/deps/uv/test/test-loop-handles.c
index 2e858c1d7b4..8db6c8c1740 100644
--- a/deps/uv/test/test-loop-handles.c
+++ b/deps/uv/test/test-loop-handles.c
@@ -359,53 +359,3 @@ TEST_IMPL(loop_handles) {
 
   return 0;
 }
-
-
-TEST_IMPL(ref) {
-  uv_init();
-  uv_run();
-  return 0;
-}
-
-
-TEST_IMPL(idle_ref) {
-  uv_idle_t h;
-  uv_init();
-  uv_idle_init(&h);
-  uv_idle_start(&h, NULL);
-  uv_unref();
-  uv_run();
-  return 0;
-}
-
-
-TEST_IMPL(async_ref) {
-  uv_async_t h;
-  uv_init();
-  uv_async_init(&h, NULL);
-  uv_unref();
-  uv_run();
-  return 0;
-}
-
-
-TEST_IMPL(prepare_ref) {
-  uv_prepare_t h;
-  uv_init();
-  uv_prepare_init(&h);
-  uv_prepare_start(&h, NULL);
-  uv_unref();
-  uv_run();
-  return 0;
-}
-
-
-TEST_IMPL(check_ref) {
-  uv_check_t h;
-  uv_init();
-  uv_check_init(&h);
-  uv_check_start(&h, NULL);
-  uv_unref();
-  uv_run();
-  return 0;
-}
diff --git a/deps/uv/test/test-ref.c b/deps/uv/test/test-ref.c
new file mode 100644
index 00000000000..d61b3a6f50a
--- /dev/null
+++ b/deps/uv/test/test-ref.c
@@ -0,0 +1,91 @@
+/* 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.
+ */
+
+#include "uv.h"
+#include "task.h"
+
+
+TEST_IMPL(ref) {
+  uv_init();
+  uv_run();
+  return 0;
+}
+
+
+TEST_IMPL(idle_ref) {
+  uv_idle_t h;
+  uv_init();
+  uv_idle_init(&h);
+  uv_idle_start(&h, NULL);
+  uv_unref();
+  uv_run();
+  return 0;
+}
+
+
+TEST_IMPL(async_ref) {
+  uv_async_t h;
+  uv_init();
+  uv_async_init(&h, NULL);
+  uv_unref();
+  uv_run();
+  return 0;
+}
+
+
+TEST_IMPL(prepare_ref) {
+  uv_prepare_t h;
+  uv_init();
+  uv_prepare_init(&h);
+  uv_prepare_start(&h, NULL);
+  uv_unref();
+  uv_run();
+  return 0;
+}
+
+
+TEST_IMPL(check_ref) {
+  uv_check_t h;
+  uv_init();
+  uv_check_init(&h);
+  uv_check_start(&h, NULL);
+  uv_unref();
+  uv_run();
+  return 0;
+}
+
+
+static void prepare_cb(uv_prepare_t* handle, int status) {
+  ASSERT(handle != NULL);
+  ASSERT(status == 0);
+
+  uv_unref();
+}
+
+
+TEST_IMPL(unref_in_prepare_cb) {
+  uv_prepare_t h;
+  uv_init();
+  uv_prepare_init(&h);
+  uv_prepare_start(&h, prepare_cb);
+  uv_run();
+  return 0;
+}