Initial checkin of gRPC to third_party/

third_party/grpc/src/core/support/env_win32.c

Index: third_party/grpc/src/core/support/env_win32.c
diff --git a/third_party/tcmalloc/vendor/src/base/linuxthreads.h b/third_party/grpc/src/core/support/env_win32.c
similarity index 63%
copy from third_party/tcmalloc/vendor/src/base/linuxthreads.h
copy to third_party/grpc/src/core/support/env_win32.c
index 5c318fed7ec4c47e7bf082e315992e102abcd620..10258283bafe46703841205aa541e6ea9bcf7a72 100644
--- a/third_party/tcmalloc/vendor/src/base/linuxthreads.h
+++ b/third_party/grpc/src/core/support/env_win32.c
@@ -1,4 +1,6 @@
-/* Copyright (c) 2005-2007, Google Inc.
+/*
+ *
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -27,27 +29,45 @@
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  *
- * ---
- * Author: Markus Gutschke
  */
 
-#ifndef _LINUXTHREADS_H
-#define _LINUXTHREADS_H
+#include <grpc/support/port_platform.h>
 
-/* Include thread_lister.h to get the interface that we implement for linux.
- */
+#ifdef GPR_WIN32
 
-/* We currently only support x86-32 and x86-64 on Linux. Porting to other
- * related platforms should not be difficult.
- */
-#if (defined(__i386__) || defined(__x86_64__) || defined(__ARM_ARCH_3__) || \
-     defined(__mips__) || defined(__PPC__)) && defined(__linux)
-
-/* Define the THREADS symbol to make sure that there is exactly one core dumper
- * built into the library.
- */
-#define THREADS "Linux /proc"
+#include "src/core/support/env.h"
+#include "src/core/support/string.h"
 
+#ifdef __MINGW32__
+errno_t getenv_s(size_t *size_needed, char *buffer, size_t size,
+                 const char *varname);
+#else
+#include <stdlib.h>
 #endif
 
-#endif  /* _LINUXTHREADS_H */
+#include <grpc/support/alloc.h>
+#include <grpc/support/log.h>
+#include <grpc/support/string_util.h>
+
+char *gpr_getenv(const char *name) {
+  size_t size;
+  char *result = NULL;
+  errno_t err;
+
+  err = getenv_s(&size, NULL, 0, name);
+  if (err || (size == 0)) return NULL;
+  result = gpr_malloc(size);
+  err = getenv_s(&size, result, size, name);
+  if (err) {
+    gpr_free(result);
+    return NULL;
+  }
+  return result;
+}
+
+void gpr_setenv(const char *name, const char *value) {
+  errno_t res = _putenv_s(name, value);
+  GPR_ASSERT(res == 0);
+}
+
+#endif /* GPR_WIN32 */