1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/dom/system/gonk/OpenFileFinder.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,63 @@
1.4 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.5 + * License, v. 2.0. If a copy of the MPL was not distributed with this file,
1.6 + * You can obtain one at http://mozilla.org/MPL/2.0/. */
1.7 +
1.8 +#ifndef mozilla_system_openfilefinder_h__
1.9 +#define mozilla_system_openfilefinder_h__
1.10 +
1.11 +#include "nsString.h"
1.12 +
1.13 +#include <dirent.h>
1.14 +
1.15 +namespace mozilla {
1.16 +namespace system {
1.17 +
1.18 +class OpenFileFinder
1.19 +{
1.20 +public:
1.21 + enum State
1.22 + {
1.23 + NEXT_PID,
1.24 + CHECK_FDS,
1.25 + DONE
1.26 + };
1.27 + class Info
1.28 + {
1.29 + public:
1.30 + nsCString mFileName; // name of the the open file
1.31 + nsCString mAppName; // App which has the file open (if it's a b2g app)
1.32 + pid_t mPid; // pid of the process which has the file open
1.33 + nsCString mComm; // comm associated with pid
1.34 + nsCString mExe; // executable name associated with pid
1.35 + bool mIsB2gOrDescendant; // this is b2g/its descendant or not
1.36 + };
1.37 +
1.38 + OpenFileFinder(const nsACString& aPath, bool aCheckIsB2gOrDescendant = true);
1.39 + ~OpenFileFinder();
1.40 +
1.41 + bool First(Info* aInfo); // Return the first open file
1.42 + bool Next(Info* aInfo); // Return the next open file
1.43 + void Close();
1.44 +
1.45 +private:
1.46 +
1.47 + void FillInfo(Info *aInfo, const nsACString& aPath);
1.48 + bool ReadSymLink(const nsACString& aSymLink, nsACString& aOutPath);
1.49 + bool PathMatches(const nsACString& aPath)
1.50 + {
1.51 + return Substring(aPath, 0, mPath.Length()).Equals(mPath);
1.52 + }
1.53 +
1.54 + State mState; // Keeps track of what we're doing.
1.55 + nsCString mPath; // Only report files contained within this directory tree
1.56 + DIR* mProcDir; // Used for scanning /proc
1.57 + DIR* mFdDir; // Used for scanning /proc/PID/fd
1.58 + int mPid; // PID currently being processed
1.59 + pid_t mMyPid; // PID of parent process, we assume we're running on it.
1.60 + bool mCheckIsB2gOrDescendant; // Do we care about non-b2g process?
1.61 +};
1.62 +
1.63 +} // system
1.64 +} // mozilla
1.65 +
1.66 +#endif // mozilla_system_nsvolume_h__
