upgrade libuv

1 files changed, 384 insertions, 0 deletions

diff --git a/deps/uv/src/win/fs-event.c b/deps/uv/src/win/fs-event.c
new file mode 100644
index 0000000000..a68dfe00de
--- /dev/null
+++ b/deps/uv/src/win/fs-event.c
@@ -0,0 +1,384 @@
+/* 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 <assert.h>
+#include <malloc.h>
+#include <errno.h>
+#include <string.h>
+#include "uv.h"
+#include "internal.h"
+
+
+const unsigned int uv_directory_watcher_buffer_size = 4096;
+
+
+static void uv_fs_event_init_handle(uv_loop_t* loop, uv_fs_event_t* handle,
+    const char* filename, uv_fs_event_cb cb) {
+  handle->type = UV_FS_EVENT;
+  handle->loop = loop;
+  handle->flags = 0;
+  handle->cb = cb;
+  handle->is_path_dir = 0;
+  handle->dir_handle = INVALID_HANDLE_VALUE;
+  handle->buffer = NULL;
+  handle->req_pending = 0;
+  handle->filew = NULL;
+  
+  uv_req_init(loop, (uv_req_t*)&handle->req);
+  handle->req.type = UV_FS_EVENT_REQ;
+  handle->req.data = (void*)handle;
+
+  handle->filename = strdup(filename);
+  if (!handle->filename) {
+    uv_fatal_error(ERROR_OUTOFMEMORY, "malloc");
+  }
+
+  loop->counters.handle_init++;
+  loop->counters.fs_event_init++;
+
+  uv_ref(loop);
+}
+
+
+static void uv_fs_event_queue_readdirchanges(uv_loop_t* loop,
+    uv_fs_event_t* handle) {
+  assert(handle->dir_handle != INVALID_HANDLE_VALUE);
+  assert(!handle->req_pending);
+
+  memset(&(handle->req.overlapped), 0, sizeof(handle->req.overlapped));
+  if (!ReadDirectoryChangesW(handle->dir_handle,
+                             handle->buffer,
+                             uv_directory_watcher_buffer_size,
+                             FALSE,
+                             FILE_NOTIFY_CHANGE_FILE_NAME      |
+                               FILE_NOTIFY_CHANGE_DIR_NAME     |
+                               FILE_NOTIFY_CHANGE_ATTRIBUTES   |
+                               FILE_NOTIFY_CHANGE_SIZE         |
+                               FILE_NOTIFY_CHANGE_LAST_WRITE   |
+                               FILE_NOTIFY_CHANGE_LAST_ACCESS  |
+                               FILE_NOTIFY_CHANGE_CREATION     |
+                               FILE_NOTIFY_CHANGE_SECURITY,
+                             NULL,
+                             &handle->req.overlapped,
+                             NULL)) {
+    /* Make this req pending reporting an error. */
+    SET_REQ_ERROR(&handle->req, GetLastError());
+    uv_insert_pending_req(loop, (uv_req_t*)&handle->req);
+  }
+
+  handle->req_pending = 1;
+}
+
+
+static int uv_split_path(const wchar_t* filename, wchar_t** dir,
+    wchar_t** file) {
+  int len = wcslen(filename);
+  int i = len;
+  while (i > 0 && filename[--i] != '\\' && filename[i] != '/');
+
+  if (i == 0) {
+    *dir = (wchar_t*)malloc((MAX_PATH + 1) * sizeof(wchar_t));
+    if (!*dir) {
+      uv_fatal_error(ERROR_OUTOFMEMORY, "malloc");
+    }
+
+    if (!GetCurrentDirectoryW(MAX_PATH, *dir)) {
+      free(*dir);
+      *dir = NULL;
+      return -1;
+    }
+    
+    *file = wcsdup(filename);
+  } else {
+    *dir = (wchar_t*)malloc((i + 1) * sizeof(wchar_t));
+    if (!*dir) {
+      uv_fatal_error(ERROR_OUTOFMEMORY, "malloc");
+    }
+    wcsncpy(*dir, filename, i);
+    (*dir)[i] = L'\0';
+
+    *file = (wchar_t*)malloc((len - i) * sizeof(wchar_t));
+    if (!*file) {
+      uv_fatal_error(ERROR_OUTOFMEMORY, "malloc");
+    }
+    wcsncpy(*file, filename + i + 1, len - i - 1);
+    (*file)[len - i - 1] = L'\0';
+  }
+
+  return 0;
+}
+
+
+int uv_fs_event_init(uv_loop_t* loop, uv_fs_event_t* handle,
+    const char* filename, uv_fs_event_cb cb) {
+  int name_size;
+  DWORD attr, last_error;
+  wchar_t* dir = NULL, *dir_to_watch, *filenamew;
+
+  uv_fs_event_init_handle(loop, handle, filename, cb);
+
+  /* Convert name to UTF16. */
+  name_size = uv_utf8_to_utf16(filename, NULL, 0) * sizeof(wchar_t);
+  filenamew = (wchar_t*)malloc(name_size);
+  if (!filenamew) {
+    uv_fatal_error(ERROR_OUTOFMEMORY, "malloc");
+  }
+
+  if (!uv_utf8_to_utf16(filename, filenamew, 
+      name_size / sizeof(wchar_t))) {
+    uv_set_sys_error(loop, GetLastError());
+    return -1;
+  }
+
+  /* Determine whether filename is a file or a directory. */
+  attr = GetFileAttributesW(filenamew);
+  if (attr == INVALID_FILE_ATTRIBUTES) {
+    last_error = GetLastError();
+    goto error;
+  }
+
+  handle->is_path_dir = (attr & FILE_ATTRIBUTE_DIRECTORY) ? 1 : 0;
+
+  if (handle->is_path_dir) {
+     /* filename is a directory, so that's the directory that we will watch. */
+    dir_to_watch = filenamew;
+  } else {
+    /* 
+     * filename is a file.  So we split filename into dir & file parts, and
+     * watch the dir directory.
+     */
+    if (uv_split_path(filenamew, &dir, &handle->filew) != 0) {
+      last_error = GetLastError();
+      goto error;
+    }
+
+    dir_to_watch = dir;
+  }
+
+  handle->dir_handle = CreateFileW(dir_to_watch,
+                                   FILE_LIST_DIRECTORY,
+                                   FILE_SHARE_READ | FILE_SHARE_DELETE |
+                                     FILE_SHARE_WRITE,
+                                   NULL,
+                                   OPEN_EXISTING,
+                                   FILE_FLAG_BACKUP_SEMANTICS |
+                                     FILE_FLAG_OVERLAPPED,
+                                   NULL);
+
+  if (dir) {
+    free(dir);
+    dir = NULL;
+  }
+
+  if (handle->dir_handle == INVALID_HANDLE_VALUE) {
+    last_error = GetLastError();
+    goto error;
+  }
+
+  if (CreateIoCompletionPort(handle->dir_handle,
+                              loop->iocp,
+                              (ULONG_PTR)handle,
+                              0) == NULL) {
+    last_error = GetLastError();
+    goto error;
+  }
+
+  handle->buffer = (char*)_aligned_malloc(uv_directory_watcher_buffer_size, 
+    sizeof(DWORD));
+  if (!handle->buffer) {
+    uv_fatal_error(ERROR_OUTOFMEMORY, "malloc");
+  }
+
+  memset(&(handle->req.overlapped), 0, sizeof(handle->req.overlapped));
+
+  if (!ReadDirectoryChangesW(handle->dir_handle,
+                             handle->buffer,
+                             uv_directory_watcher_buffer_size,
+                             FALSE,
+                             FILE_NOTIFY_CHANGE_FILE_NAME      |
+                               FILE_NOTIFY_CHANGE_DIR_NAME     |
+                               FILE_NOTIFY_CHANGE_ATTRIBUTES   |
+                               FILE_NOTIFY_CHANGE_SIZE         |
+                               FILE_NOTIFY_CHANGE_LAST_WRITE   |
+                               FILE_NOTIFY_CHANGE_LAST_ACCESS  |
+                               FILE_NOTIFY_CHANGE_CREATION     |
+                               FILE_NOTIFY_CHANGE_SECURITY,
+                             NULL,
+                             &handle->req.overlapped,
+                             NULL)) {
+    last_error = GetLastError();
+    goto error;
+  }
+
+  handle->req_pending = 1;
+  return 0;
+
+error:
+  if (handle->filename) {
+    free(handle->filename);
+    handle->filename = NULL;
+  }
+
+  if (handle->filew) {
+    free(handle->filew);
+    handle->filew = NULL;
+  }
+
+  if (handle->dir_handle != INVALID_HANDLE_VALUE) {
+    CloseHandle(handle->dir_handle);
+    handle->dir_handle = INVALID_HANDLE_VALUE;
+  }
+
+  if (handle->buffer) {
+    _aligned_free(handle->buffer);
+    handle->buffer = NULL;
+  }
+
+  uv_set_sys_error(loop, last_error);
+  return -1;
+}
+
+
+void uv_process_fs_event_req(uv_loop_t* loop, uv_req_t* req,
+    uv_fs_event_t* handle) {
+  FILE_NOTIFY_INFORMATION* file_info;
+  char* filename = NULL;
+  int utf8size;
+  DWORD offset = 0;
+
+  assert(req->type == UV_FS_EVENT_REQ);
+  assert(handle->req_pending);
+  handle->req_pending = 0;
+
+  file_info = (FILE_NOTIFY_INFORMATION*)(handle->buffer + offset);
+
+  if (REQ_SUCCESS(req)) {
+    if (req->overlapped.InternalHigh > 0) {
+      do {
+        file_info = (FILE_NOTIFY_INFORMATION*)((char*)file_info + offset);
+
+        /* 
+         * Fire the event only if we were asked to watch a directory,
+         * or if the filename filter matches.
+         */
+        if (handle->is_path_dir || _wcsnicmp(handle->filew, file_info->FileName,
+          file_info->FileNameLength / sizeof(wchar_t)) == 0) {
+        
+          /* Convert the filename to utf8. */
+          utf8size = uv_utf16_to_utf8(file_info->FileName,
+                                      file_info->FileNameLength / 
+                                        sizeof(wchar_t),
+                                      NULL,
+                                      0);
+          if (utf8size) {
+            filename = (char*)malloc(utf8size + 1);
+            if (!filename) {
+              uv_fatal_error(ERROR_OUTOFMEMORY, "malloc");
+            }
+
+            utf8size = uv_utf16_to_utf8(file_info->FileName,
+                                        file_info->FileNameLength /
+                                          sizeof(wchar_t),
+                                        filename,
+                                        utf8size);
+            if (utf8size) {
+              filename[utf8size] = L'\0';
+            } else {
+              free(filename);
+              filename = NULL;
+            }
+          }
+
+          switch (file_info->Action) {
+            case FILE_ACTION_ADDED:
+            case FILE_ACTION_REMOVED:
+            case FILE_ACTION_RENAMED_OLD_NAME:
+            case FILE_ACTION_RENAMED_NEW_NAME:
+              handle->cb(handle, filename, UV_RENAME, 0);
+              break;
+
+            case FILE_ACTION_MODIFIED:
+              handle->cb(handle, filename, UV_CHANGE, 0);
+              break;
+          }
+
+          free(filename);
+          filename = NULL;
+        }
+
+        offset = file_info->NextEntryOffset;
+      } while(offset);
+    } else {
+      handle->cb(handle, NULL, UV_CHANGE, 0);
+    }
+  } else {
+    loop->last_error = GET_REQ_UV_ERROR(req);
+    handle->cb(handle, NULL, 0, -1);
+  }
+
+  if (!(handle->flags & UV_HANDLE_CLOSING)) {
+    uv_fs_event_queue_readdirchanges(loop, handle);
+  } else {
+    uv_want_endgame(loop, (uv_handle_t*)handle);
+  }
+}
+
+
+void uv_fs_event_close(uv_loop_t* loop, uv_fs_event_t* handle) {
+  if (handle->dir_handle != INVALID_HANDLE_VALUE) {
+    CloseHandle(handle->dir_handle);
+    handle->dir_handle = INVALID_HANDLE_VALUE;
+  }
+
+  if (!handle->req_pending) {
+    uv_want_endgame(loop, (uv_handle_t*)handle);
+  }
+}
+
+
+void uv_fs_event_endgame(uv_loop_t* loop, uv_fs_event_t* handle) {
+  if (handle->flags & UV_HANDLE_CLOSING &&
+      !handle->req_pending) {
+    assert(!(handle->flags & UV_HANDLE_CLOSED));
+    handle->flags |= UV_HANDLE_CLOSED;
+
+    if (handle->buffer) {
+      _aligned_free(handle->buffer);
+      handle->buffer = NULL;
+    }
+
+    if (handle->filew) {
+      free(handle->filew);
+      handle->filew = NULL;
+    }
+
+    if (handle->filename) {
+      free(handle->filename);
+      handle->filename = NULL;
+    }
+
+    if (handle->close_cb) {
+      handle->close_cb((uv_handle_t*)handle);
+    }
+
+    uv_unref(loop);
+  }
+}