1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/ipc/chromium/src/base/process.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,79 @@
1.4 +// Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.
1.5 +// Use of this source code is governed by a BSD-style license that can be
1.6 +// found in the LICENSE file.
1.7 +
1.8 +#ifndef BASE_PROCESS_H_
1.9 +#define BASE_PROCESS_H_
1.10 +
1.11 +#include "base/basictypes.h"
1.12 +
1.13 +#include <sys/types.h>
1.14 +#ifdef OS_WIN
1.15 +#include <windows.h>
1.16 +#endif
1.17 +
1.18 +namespace base {
1.19 +
1.20 +// ProcessHandle is a platform specific type which represents the underlying OS
1.21 +// handle to a process.
1.22 +// ProcessId is a number which identifies the process in the OS.
1.23 +#if defined(OS_WIN)
1.24 +typedef HANDLE ProcessHandle;
1.25 +typedef DWORD ProcessId;
1.26 +#elif defined(OS_POSIX)
1.27 +// On POSIX, our ProcessHandle will just be the PID.
1.28 +typedef pid_t ProcessHandle;
1.29 +typedef pid_t ProcessId;
1.30 +#endif
1.31 +
1.32 +class Process {
1.33 + public:
1.34 + Process() : process_(0), last_working_set_size_(0) {}
1.35 + explicit Process(ProcessHandle handle) :
1.36 + process_(handle), last_working_set_size_(0) {}
1.37 +
1.38 + // A handle to the current process.
1.39 + static Process Current();
1.40 +
1.41 + // Get/Set the handle for this process. The handle will be 0 if the process
1.42 + // is no longer running.
1.43 + ProcessHandle handle() const { return process_; }
1.44 + void set_handle(ProcessHandle handle) { process_ = handle; }
1.45 +
1.46 + // Get the PID for this process.
1.47 + ProcessId pid() const;
1.48 +
1.49 + // Is the this process the current process.
1.50 + bool is_current() const;
1.51 +
1.52 + // Close the process handle. This will not terminate the process.
1.53 + void Close();
1.54 +
1.55 + // Terminates the process with extreme prejudice. The given result code will
1.56 + // be the exit code of the process. If the process has already exited, this
1.57 + // will do nothing.
1.58 + void Terminate(int result_code);
1.59 +
1.60 + // A process is backgrounded when it's priority is lower than normal.
1.61 + // Return true if this process is backgrounded, false otherwise.
1.62 + bool IsProcessBackgrounded() const;
1.63 +
1.64 + // Set a prcess as backgrounded. If value is true, the priority
1.65 + // of the process will be lowered. If value is false, the priority
1.66 + // of the process will be made "normal" - equivalent to default
1.67 + // process priority.
1.68 + // Returns true if the priority was changed, false otherwise.
1.69 + bool SetProcessBackgrounded(bool value);
1.70 +
1.71 + // Releases as much of the working set back to the OS as possible.
1.72 + // Returns true if successful, false otherwise.
1.73 + bool EmptyWorkingSet();
1.74 +
1.75 + private:
1.76 + ProcessHandle process_;
1.77 + size_t last_working_set_size_;
1.78 +};
1.79 +
1.80 +} // namespace base
1.81 +
1.82 +#endif // BASE_PROCESS_H_
