//
//===----------------------------------------------------------------------===//
//
-// 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"
-#if LLVM_ON_WIN32
- // This define makes stdlib.h declare the rand_s function.
-#define _CRT_RAND_S
-#include <stdlib.h>
-#endif
#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;
//=== independent code.
//===----------------------------------------------------------------------===//
-// Empty virtual destructor to anchor the vtable for the process class.
-process::~process() {}
-
-self_process *process::get_self() {
- // Use a function local static for thread safe initialization and allocate it
- // as a raw pointer to ensure it is never destroyed.
- static self_process *SP = new self_process();
-
- 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
-// racy accesses during shutdown.
-self_process::~self_process() {
- llvm_unreachable("This destructor must never be executed!");
-}
-
/// \brief A helper function to compute the elapsed wall-time since the program
/// started.
///
/// 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;
+ }
+ }
-#if defined(_MSC_VER)
-#pragma warning(pop)
-#endif
+ return FoundPath;
+}
#define COLOR(FGBG, CODE, BOLD) "\033[0;" BOLD FGBG CODE "m"