Explicitly request unsigned enum types when desired

[oota-llvm.git] / include / llvm / Support / Process.h

diff --git a/include/llvm/Support/Process.h b/include/llvm/Support/Process.h
index 4256d4a03b9d8da28721562c5088b251eb9b8630..ce39d048bb96aaeb82b8c668238ca6e95e13ab82 100644 (file)
--- a/include/llvm/Support/Process.h
+++ b/include/llvm/Support/Process.h
@@ -25,11 +25,14 @@
 #ifndef LLVM_SUPPORT_PROCESS_H
 #define LLVM_SUPPORT_PROCESS_H
 
+#include "llvm/ADT/Optional.h"
 #include "llvm/Config/llvm-config.h"
 #include "llvm/Support/DataTypes.h"
 #include "llvm/Support/TimeValue.h"
 
 namespace llvm {
+class StringRef;
+
 namespace sys {
 
 class self_process;
@@ -50,13 +53,13 @@ protected:
 public:
   /// \brief Operating system specific type to identify a process.
   ///
-  /// Note that the windows one is defined to 'void *' as this is the
-  /// documented type for HANDLE on windows, and we don't want to pull in the
+  /// Note that the windows one is defined to 'unsigned long' as this is the
+  /// documented type for DWORD on windows, and we don't want to pull in the
   /// Windows headers here.
 #if defined(LLVM_ON_UNIX)
   typedef pid_t id_type;
 #elif defined(LLVM_ON_WIN32)
-  typedef void *id_type; // Must match the type of HANDLE.
+  typedef unsigned long id_type; // Must match the type of DWORD.
 #else
 #error Unsupported operating system.
 #endif
@@ -155,22 +158,16 @@ public:
   static void GetTimeUsage(TimeValue &elapsed, TimeValue &user_time,
                            TimeValue &sys_time);
 
-  /// This static function will return the process' current user id number.
-  /// Not all operating systems support this feature. Where it is not
-  /// supported, the function should return 65536 as the value.
-  static int GetCurrentUserId();
-
-  /// This static function will return the process' current group id number.
-  /// Not all operating systems support this feature. Where it is not
-  /// supported, the function should return 65536 as the value.
-  static int GetCurrentGroupId();
-
   /// This function makes the necessary calls to the operating system to
   /// prevent core files or any other kind of large memory dumps that can
   /// occur when a program fails.
   /// @brief Prevent core file generation.
   static void PreventCoreFiles();
 
+  // This function returns the environment variable \arg name's value as a UTF-8
+  // string. \arg Name is assumed to be in UTF-8 encoding too.
+  static Optional<std::string> GetEnv(StringRef name);
+
   /// This function determines if the standard input is connected directly
   /// to a user's input (keyboard probably), rather than coming from a file
   /// or pipe.
@@ -219,6 +216,12 @@ public:
   /// terminal, this function returns false.
   static bool StandardErrHasColors();
 
+  /// Enables or disables whether ANSI escape sequences are used to output
+  /// colors. This only has an effect on Windows.
+  /// Note: Setting this option is not thread-safe and should only be done
+  /// during initialization.
+  static void UseANSIEscapeCodes(bool enable);
+
   /// Whether changing colors requires the output to be flushed.
   /// This is needed on systems that don't support escape sequences for
   /// changing colors.