Don't bother checking canRead() before calling getMagicNumber();

[oota-llvm.git] / lib / System / Win32 / Process.inc

diff --git a/lib/System/Win32/Process.inc b/lib/System/Win32/Process.inc
index 5b090da3c2eede8be2e489827630bdb0eb43dc58..feb0806116e46bbb1b545449227d436fd81f6aa9 100644 (file)
--- a/lib/System/Win32/Process.inc
+++ b/lib/System/Win32/Process.inc
@@ -2,8 +2,8 @@
 // 
 //                     The LLVM Compiler Infrastructure
 //
-// This file was developed by Jeff Cohen and is distributed under the 
-// University of Illinois Open Source License. See LICENSE.TXT for details.
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
 // 
 //===----------------------------------------------------------------------===//
 //
@@ -16,7 +16,13 @@
 #include <malloc.h>
 #include <io.h>
 
-#pragma comment(lib, "psapi.lib")
+#ifdef __MINGW32__
+ #if (HAVE_LIBPSAPI != 1)
+  #error "libpsapi.a should be present"
+ #endif
+#else
+ #pragma comment(lib, "psapi.lib")
+#endif
 
 //===----------------------------------------------------------------------===//
 //=== WARNING: Implementation here must contain only Win32 specific code 
@@ -114,15 +120,102 @@ void Process::PreventCoreFiles() {
 }
 
 bool Process::StandardInIsUserInput() {
-  return GetFileType((HANDLE)_get_osfhandle(0)) == FILE_TYPE_CHAR;
+  return FileDescriptorIsDisplayed(0);
 }
 
 bool Process::StandardOutIsDisplayed() {
-  return GetFileType((HANDLE)_get_osfhandle(1)) == FILE_TYPE_CHAR;
+  return FileDescriptorIsDisplayed(1);
 }
 
 bool Process::StandardErrIsDisplayed() {
-  return GetFileType((HANDLE)_get_osfhandle(2)) == FILE_TYPE_CHAR;
+  return FileDescriptorIsDisplayed(2);
+}
+
+bool Process::FileDescriptorIsDisplayed(int fd) {
+  return GetFileType((HANDLE)_get_osfhandle(fd)) == FILE_TYPE_CHAR;
+}
+
+unsigned Process::StandardOutColumns() {
+  unsigned Columns = 0;
+  CONSOLE_SCREEN_BUFFER_INFO csbi;
+  if (GetConsoleScreenBufferInfo(GetStdHandle(STD_OUTPUT_HANDLE), &csbi))
+    Columns = csbi.dwSize.X;
+  return Columns;
+}
+
+unsigned Process::StandardErrColumns() {
+  unsigned Columns = 0;
+  CONSOLE_SCREEN_BUFFER_INFO csbi;
+  if (GetConsoleScreenBufferInfo(GetStdHandle(STD_ERROR_HANDLE), &csbi))
+    Columns = csbi.dwSize.X;
+  return Columns;
+}
+
+// It always has colors.
+bool Process::StandardErrHasColors() {
+  return StandardErrIsDisplayed();
+}
+
+bool Process::StandardOutHasColors() {
+  return StandardOutIsDisplayed();
+}
+
+namespace {
+class DefaultColors
+{
+  private:
+    WORD defaultColor;
+  public:
+    DefaultColors()
+     :defaultColor(GetCurrentColor()) {}
+    static unsigned GetCurrentColor() {
+      CONSOLE_SCREEN_BUFFER_INFO csbi;
+      if (GetConsoleScreenBufferInfo(GetStdHandle(STD_OUTPUT_HANDLE), &csbi))
+        return csbi.wAttributes;
+      return 0;
+    }
+    WORD operator()() const { return defaultColor; }
+};
+
+DefaultColors defaultColors;
+}
+
+bool Process::ColorNeedsFlush() {
+  return true;
+}
+
+const char *Process::OutputBold(bool bg) {
+  WORD colors = DefaultColors::GetCurrentColor();
+  if (bg)
+    colors |= BACKGROUND_INTENSITY;
+  else
+    colors |= FOREGROUND_INTENSITY;
+  SetConsoleTextAttribute(GetStdHandle(STD_OUTPUT_HANDLE), colors);
+  return 0;
+}
+
+const char *Process::OutputColor(char code, bool bold, bool bg) {
+  WORD colors;
+  if (bg) {
+    colors = ((code&1) ? BACKGROUND_RED : 0) |
+      ((code&2) ? BACKGROUND_GREEN : 0 ) |
+      ((code&4) ? BACKGROUND_BLUE : 0);
+    if (bold)
+      colors |= BACKGROUND_INTENSITY;
+  } else {
+    colors = ((code&1) ? FOREGROUND_RED : 0) |
+      ((code&2) ? FOREGROUND_GREEN : 0 ) |
+      ((code&4) ? FOREGROUND_BLUE : 0);
+    if (bold)
+      colors |= FOREGROUND_INTENSITY;
+  }
+  SetConsoleTextAttribute(GetStdHandle(STD_OUTPUT_HANDLE), colors);
+  return 0;
+}
+
+const char *Process::ResetColor() {
+  SetConsoleTextAttribute(GetStdHandle(STD_OUTPUT_HANDLE), defaultColors());
+  return 0;
 }
 
 }