Move signal_blocker to platform and use it by default in TEMP_FAILURE_RETRY.

runtime/bin/file_system_watcher_linux.cc

 // Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "platform/globals.h"
 #if defined(TARGET_OS_LINUX)
 
 #include "bin/file_system_watcher.h"
 
 #include <errno.h>  // NOLINT
 #include <sys/inotify.h>  // NOLINT
 
 #include "bin/fdutils.h"
 #include "bin/socket.h"
 
 
 namespace dart {
 namespace bin {
 
 bool FileSystemWatcher::IsSupported() {
   return true;
 }
 
 
 intptr_t FileSystemWatcher::Init() {
-  int id = TEMP_FAILURE_RETRY(inotify_init1(IN_CLOEXEC));
+  int id = inotify_init1(IN_CLOEXEC);
   if (id < 0) return -1;
   // Some systems dosn't support setting this as non-blocking. Since watching
   // internals are kept away from the user, we know it's possible to continue,
   // even if setting non-blocking fails.
   FDUtils::SetNonBlocking(id);
   return id;
 }
 
 
 void FileSystemWatcher::Close(intptr_t id) {
   USE(id);
 }
 
 
 intptr_t FileSystemWatcher::WatchPath(intptr_t id,
                                       const char* path,
                                       int events,
                                       bool recursive) {
   int list_events = IN_DELETE_SELF | IN_MOVE_SELF;
   if (events & kCreate) list_events |= IN_CREATE;
   if (events & kModifyContent) list_events |= IN_CLOSE_WRITE | IN_ATTRIB;
   if (events & kDelete) list_events |= IN_DELETE;
   if (events & kMove) list_events |= IN_MOVE;
-  int path_id = TEMP_FAILURE_RETRY(inotify_add_watch(id, path, list_events));
+  int path_id = inotify_add_watch(id, path, list_events);
   if (path_id < 0) {
     return -1;
   }
   return path_id;
 }
 
 
 void FileSystemWatcher::UnwatchPath(intptr_t id, intptr_t path_id) {
-  VOID_TEMP_FAILURE_RETRY(inotify_rm_watch(id, path_id));
+  inotify_rm_watch(id, path_id);
 }
 
 
 intptr_t FileSystemWatcher::GetSocketId(intptr_t id, intptr_t path_id) {
   USE(path_id);
   return id;
 }
 
 
 Dart_Handle FileSystemWatcher::ReadEvents(intptr_t id, intptr_t path_id) {
@@ skipping 39 matching lines @@
   }
   ASSERT(offset == bytes);
   return events;
 }
 
 }  // namespace bin
 }  // namespace dart
 
 #endif  // defined(TARGET_OS_LINUX)