Esempio n. 1
0
        public override void Lock(bool nonBlock = false)
        {
            if (LockedCount == 0)
            {
                IO.MakeDirIfNotExists(Env.UnixMutantDir);

                UnixPermissions perm = UnixPermissions.S_IRUSR | UnixPermissions.S_IWUSR | UnixPermissions.S_IRGRP | UnixPermissions.S_IWGRP | UnixPermissions.S_IROTH | UnixPermissions.S_IWOTH;

                IntPtr fd = UnixApi.Open(Filename, UnixApi.OpenFlags.O_CREAT | UnixApi.OpenFlags.O_CLOEXEC, (int)perm);
                if (fd.ToInt64() < 0)
                {
                    throw new IOException("Open failed.");
                }

                try
                {
                    if (UnixApi.FLock(fd, UnixApi.LockOperations.LOCK_EX | (nonBlock ? UnixApi.LockOperations.LOCK_NB : 0)) == -1)
                    {
                        throw new IOException("FLock failed.");
                    }
                }
                catch
                {
                    UnixApi.Close(fd);

                    throw;
                }

                this.FileHandle = fd;

                LockedCount++;
            }
        }
        public void StopService(int stopTimeout)
        {
            HiveData.SyncWithStorage(HiveSyncFlags.LoadFromFile, true);

            long pid = HiveData.ManagedData.Pid;

            if (pid != 0)
            {
                if (Env.IsWindows == false)
                {
                    if (UnixApi.Kill((int)pid, UnixApi.Signals.SIGTERM) == 0)
                    {
                        Con.WriteLine($"Shutting down the daemon \"{Name}\" (pid = {pid}) ...");

                        if (UnixApi.WaitProcessExit((int)pid, stopTimeout) == false)
                        {
                            Con.WriteLine($"Shutting down the daemon \"{Name}\" (pid = {pid}) timed out.");

                            throw new ApplicationException($"Shutting down the daemon \"{Name}\" (pid = {pid}) timed out.");
                        }
                    }
                    else
                    {
                        Con.WriteLine($"The daemon \"{Name}\" is not running.");
                    }
                }
                else
                {
                    if (ManualResetEvent.TryOpenExisting(HiveData.ManagedData.EventName !, out EventWaitHandle? eventHandle))
                    {
                        try
                        {
                            Con.WriteLine($"Stopping the daemon \"{Name}\" (pid = {pid}) ...");

                            eventHandle.Set();

                            if (Win32ApiUtil.WaitProcessExit((int)pid, stopTimeout) == false)
                            {
                                Con.WriteLine($"Stopping the daemon \"{Name}\" (pid = {pid}) timed out.");

                                throw new ApplicationException($"Stopping the daemon \"{Name}\" (pid = {pid}) timed out.");
                            }
                        }
                        finally
                        {
                            eventHandle._DisposeSafe();
                        }
                    }
                    else
                    {
                        Con.WriteLine($"The daemon \"{Name}\" is not running.");
                    }
                }
Esempio n. 3
0
        public override void Unlock()
        {
            if (LockedCount <= 0)
            {
                throw new ApplicationException("locked_count <= 0");
            }
            if (LockedCount == 1)
            {
                try
                {
                    UnixApi.FLock(this.FileHandle, UnixApi.LockOperations.LOCK_UN);
                }
                catch { }

                UnixApi.Close(this.FileHandle);

                this.FileHandle = IntPtr.Zero;
            }
            LockedCount--;
        }
Esempio n. 4
0
        public static void DeleteUnusedMutantFiles()
        {
            if (Env.IsUnix == false)
            {
                return;
            }

            try
            {
                string[] fileFullPathList = Directory.GetFiles(Env.UnixMutantDir);

                foreach (string fileFullPath in fileFullPathList)
                {
                    try
                    {
                        if (fileFullPath.EndsWith(Extension, StringComparison.OrdinalIgnoreCase))
                        {
                            UnixPermissions perm = UnixPermissions.S_IRUSR | UnixPermissions.S_IWUSR | UnixPermissions.S_IRGRP | UnixPermissions.S_IWGRP | UnixPermissions.S_IROTH | UnixPermissions.S_IWOTH;

                            bool okToDelete = false;

                            IntPtr fd = UnixApi.Open(fileFullPath, UnixApi.OpenFlags.O_CREAT | UnixApi.OpenFlags.O_CLOEXEC, (int)perm);

                            if (fd.ToInt64() >= 0)
                            {
                                try
                                {
                                    if (UnixApi.FLock(fd, UnixApi.LockOperations.LOCK_EX | UnixApi.LockOperations.LOCK_NB) != -1)
                                    {
                                        okToDelete = true;
                                    }
                                }
                                finally
                                {
                                    try
                                    {
                                        UnixApi.FLock(fd, UnixApi.LockOperations.LOCK_UN);
                                    }
                                    catch { }

                                    try
                                    {
                                        UnixApi.Close(fd);
                                    }
                                    catch { }
                                }
                            }

                            if (okToDelete)
                            {
                                try
                                {
                                    File.Delete(fileFullPath);
                                }
                                catch { }
                            }
                        }
                    }
                    catch { }
                }
            }
            catch { }
        }