1 files changed, 72 insertions, 0 deletions
diff --git a/contrib/llvm/lib/Support/Program.cpp b/contrib/llvm/lib/Support/Program.cpp
new file mode 100644
index 000000000000..4212323bc0e1
--- /dev/null
+++ b/contrib/llvm/lib/Support/Program.cpp
@@ -0,0 +1,72 @@
+//===-- Program.cpp - Implement OS Program Concept --------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+//  This file implements the operating system Program concept.
+//
+//===----------------------------------------------------------------------===//
+
+#include "llvm/Support/Program.h"
+#include "llvm/ADT/StringRef.h"
+#include "llvm/Config/config.h"
+#include <system_error>
+using namespace llvm;
+using namespace sys;
+
+//===----------------------------------------------------------------------===//
+//=== WARNING: Implementation here must contain only TRULY operating system
+//===          independent code.
+//===----------------------------------------------------------------------===//
+
+static bool Execute(ProcessInfo &PI, StringRef Program, const char **Args,
+                    const char **Env, ArrayRef<Optional<StringRef>> Redirects,
+                    unsigned MemoryLimit, std::string *ErrMsg);
+
+int sys::ExecuteAndWait(StringRef Program, const char **Args, const char **Envp,
+                        ArrayRef<Optional<StringRef>> Redirects,
+                        unsigned SecondsToWait, unsigned MemoryLimit,
+                        std::string *ErrMsg, bool *ExecutionFailed) {
+  assert(Redirects.empty() || Redirects.size() == 3);
+  ProcessInfo PI;
+  if (Execute(PI, Program, Args, Envp, Redirects, MemoryLimit, ErrMsg)) {
+    if (ExecutionFailed)
+      *ExecutionFailed = false;
+    ProcessInfo Result = Wait(
+        PI, SecondsToWait, /*WaitUntilTerminates=*/SecondsToWait == 0, ErrMsg);
+    return Result.ReturnCode;
+  }
+
+  if (ExecutionFailed)
+    *ExecutionFailed = true;
+
+  return -1;
+}
+
+ProcessInfo sys::ExecuteNoWait(StringRef Program, const char **Args,
+                               const char **Envp,
+                               ArrayRef<Optional<StringRef>> Redirects,
+                               unsigned MemoryLimit, std::string *ErrMsg,
+                               bool *ExecutionFailed) {
+  assert(Redirects.empty() || Redirects.size() == 3);
+  ProcessInfo PI;
+  if (ExecutionFailed)
+    *ExecutionFailed = false;
+  if (!Execute(PI, Program, Args, Envp, Redirects, MemoryLimit, ErrMsg))
+    if (ExecutionFailed)
+      *ExecutionFailed = true;
+
+  return PI;
+}
+
+// Include the platform-specific parts of this class.
+#ifdef LLVM_ON_UNIX
+#include "Unix/Program.inc"
+#endif
+#ifdef LLVM_ON_WIN32
+#include "Windows/Program.inc"
+#endif