//
//===----------------------------------------------------------------------===//
//
-// This header file implements the operating system Process concept.
+// This file implements the operating system Process concept.
//
//===----------------------------------------------------------------------===//
+#include "llvm/ADT/StringExtras.h"
#include "llvm/Config/config.h"
#include "llvm/Support/ErrorHandling.h"
+#include "llvm/Support/FileSystem.h"
#include "llvm/Support/Process.h"
+#include "llvm/Support/Program.h"
using namespace llvm;
using namespace sys;
return SP;
}
-#if defined(_MSC_VER)
-// Visual Studio complains that the self_process destructor never exits. This
-// doesn't make much sense, as that's the whole point of calling abort... Just
-// silence this warning.
-#pragma warning(push)
-#pragma warning(disable:4722)
-#endif
-
// The destructor for the self_process subclass must never actually be
// executed. There should be at most one instance of this class, and that
// instance should live until the process terminates to avoid the potential for
llvm_unreachable("This destructor must never be executed!");
}
-#if defined(_MSC_VER)
-#pragma warning(pop)
-#endif
+/// \brief A helper function to compute the elapsed wall-time since the program
+/// started.
+///
+/// Note that this routine actually computes the elapsed wall time since the
+/// first time it was called. However, we arrange to have it called during the
+/// startup of the process to get approximately correct results.
+static TimeValue getElapsedWallTime() {
+ static TimeValue &StartTime = *new TimeValue(TimeValue::now());
+ return TimeValue::now() - StartTime;
+}
+
+/// \brief A special global variable to ensure we call \c getElapsedWallTime
+/// during global initialization of the program.
+///
+/// Note that this variable is never referenced elsewhere. Doing so could
+/// create race conditions during program startup or shutdown.
+static volatile TimeValue DummyTimeValue = getElapsedWallTime();
+
+// Implement this routine by using the static helpers above. They're already
+// portable.
+TimeValue self_process::get_wall_time() const {
+ return getElapsedWallTime();
+}
+
+Optional<std::string> Process::FindInEnvPath(const std::string& EnvName,
+ const std::string& FileName)
+{
+ Optional<std::string> FoundPath;
+ Optional<std::string> OptPath = Process::GetEnv(EnvName);
+ if (!OptPath.hasValue())
+ return FoundPath;
+
+ const char EnvPathSeparatorStr[] = {EnvPathSeparator, '\0'};
+ SmallVector<StringRef, 8> Dirs;
+ SplitString(OptPath.getValue(), Dirs, EnvPathSeparatorStr);
+
+ for (const auto &Dir : Dirs) {
+ if (Dir.empty())
+ continue;
+
+ SmallString<128> FilePath(Dir);
+ path::append(FilePath, FileName);
+ if (fs::exists(Twine(FilePath))) {
+ FoundPath = FilePath.str();
+ break;
+ }
+ }
+
+ return FoundPath;
+}
+
+
+#define COLOR(FGBG, CODE, BOLD) "\033[0;" BOLD FGBG CODE "m"
+
+#define ALLCOLORS(FGBG,BOLD) {\
+ COLOR(FGBG, "0", BOLD),\
+ COLOR(FGBG, "1", BOLD),\
+ COLOR(FGBG, "2", BOLD),\
+ COLOR(FGBG, "3", BOLD),\
+ COLOR(FGBG, "4", BOLD),\
+ COLOR(FGBG, "5", BOLD),\
+ COLOR(FGBG, "6", BOLD),\
+ COLOR(FGBG, "7", BOLD)\
+ }
+static const char colorcodes[2][2][8][10] = {
+ { ALLCOLORS("3",""), ALLCOLORS("3","1;") },
+ { ALLCOLORS("4",""), ALLCOLORS("4","1;") }
+};
// Include the platform-specific parts of this class.
#ifdef LLVM_ON_UNIX