Add support for almost-recursive watches in Linux DirectoryWatcher

After this patch DirectoryWatcher when asked for recursive watch will scan the
subtree and add inotify watches for each subfolder, but further changes to the
tree structure won't trigger adding/removing watches.

Support for really recursive watches is planned. This is just to divide the
work, because the task is not easy.

Based on patch by Janwar Dinata <j.dinata@gmail.com> reviewed at http://codereview.chromium.org/92151

http://crbug.com/8968

Review URL: http://codereview.chromium.org/115229

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@16070 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 10 insertions, 0 deletions

diff --git a/base/file_util_posix.cc b/base/file_util_posix.cc
index ae296ca..96c1c17 100644
--- a/base/file_util_posix.cc
+++ b/base/file_util_posix.cc
@@ -440,6 +440,16 @@ bool GetFileInfo(const FilePath& file_path, FileInfo* results) {
   return true;
 }
 
+bool GetInode(const FilePath& path, ino_t* inode) {
+  struct stat buffer;
+  int result = stat(path.value().c_str(), &buffer);
+  if (result < 0)
+    return false;
+
+  *inode = buffer.st_ino;
+  return true;
+}
+
 FILE* OpenFile(const std::string& filename, const char* mode) {
   return OpenFile(FilePath(filename), mode);
 }