Index: base/process/process_handle.h |
diff --git a/base/process/process_handle.h b/base/process/process_handle.h |
index 77f2c585cfcc71087596855fa6f83ac643ce9a6c..0e667c882396c4ea9f9ed8aed0f0142fc8714729 100644 |
--- a/base/process/process_handle.h |
+++ b/base/process/process_handle.h |
@@ -5,12 +5,13 @@ |
#ifndef BASE_PROCESS_PROCESS_HANDLE_H_ |
#define BASE_PROCESS_PROCESS_HANDLE_H_ |
+#include <stdint.h> |
+#include <sys/types.h> |
+ |
#include "base/base_export.h" |
-#include "base/basictypes.h" |
#include "base/files/file_path.h" |
#include "build/build_config.h" |
-#include <sys/types.h> |
#if defined(OS_WIN) |
#include <windows.h> |
#endif |
@@ -35,15 +36,36 @@ const ProcessId kNullProcessId = 0; |
#endif // defined(OS_WIN) |
// Returns the id of the current process. |
+// Note that on some platforms, this is not guaranteed to be unique across |
+// processes (use GetUniqueIdForProcess if uniqueness is required). |
BASE_EXPORT ProcessId GetCurrentProcId(); |
+// Returns a unique ID for the current process. The ID will be unique across all |
+// currently running processes within the chrome session, but IDs of terminated |
+// processes may be reused. This returns an opaque value that is different from |
+// a process's PID. |
+BASE_EXPORT uint32_t GetUniqueIdForProcess(); |
+ |
+#if defined(OS_LINUX) |
+// When a process is started in a different PID namespace from the browser |
+// process, this function must be called with the process's PID in the browser's |
+// PID namespace in order to initialize its unique ID. Not thread safe. |
+// WARNING: To avoid inconsistent results from GetUniqueIdForProcess, this |
+// should only be called very early after process startup - ideally as soon |
+// after process creation as possible. |
+BASE_EXPORT void InitUniqueIdForProcessInPidNamespace( |
+ ProcessId pid_outside_of_namespace); |
+#endif |
+ |
// Returns the ProcessHandle of the current process. |
BASE_EXPORT ProcessHandle GetCurrentProcessHandle(); |
-// Returns the unique ID for the specified process. This is functionally the |
-// same as Windows' GetProcessId(), but works on versions of Windows before |
-// Win XP SP1 as well. |
+// Returns the process ID for the specified process. This is functionally the |
+// same as Windows' GetProcessId(), but works on versions of Windows before Win |
+// XP SP1 as well. |
// DEPRECATED. New code should be using Process::Pid() instead. |
+// Note that on some platforms, this is not guaranteed to be unique across |
+// processes. |
BASE_EXPORT ProcessId GetProcId(ProcessHandle process); |
#if defined(OS_POSIX) |