Initial checkin of gRPC to third_party/

third_party/grpc/include/grpc/support/tls_pthread.h

Index: third_party/grpc/include/grpc/support/tls_pthread.h
diff --git a/third_party/tcmalloc/chromium/src/base/linuxthreads.h b/third_party/grpc/include/grpc/support/tls_pthread.h
similarity index 66%
copy from third_party/tcmalloc/chromium/src/base/linuxthreads.h
copy to third_party/grpc/include/grpc/support/tls_pthread.h
index 5c318fed7ec4c47e7bf082e315992e102abcd620..699ee6b1d382c3c481b8f4e8d954546a9f52d27a 100644
--- a/third_party/tcmalloc/chromium/src/base/linuxthreads.h
+++ b/third_party/grpc/include/grpc/support/tls_pthread.h
@@ -1,4 +1,6 @@
-/* Copyright (c) 2005-2007, Google Inc.
+/*
+ *
+ * Copyright 2015, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -27,27 +29,32 @@
  * (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
+#ifndef GRPC_SUPPORT_TLS_PTHREAD_H
+#define GRPC_SUPPORT_TLS_PTHREAD_H
 
-/* Include thread_lister.h to get the interface that we implement for linux.
- */
+#include <grpc/support/log.h> /* for GPR_ASSERT */
+#include <pthread.h>
 
-/* 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)
+/* Thread local storage based on pthread library calls.
+   #include tls.h to use this - and see that file for documentation */
 
-/* Define the THREADS symbol to make sure that there is exactly one core dumper
- * built into the library.
- */
-#define THREADS "Linux /proc"
+struct gpr_pthread_thread_local {
+  pthread_key_t key;
+};
 
+#define GPR_TLS_DECL(name) static struct gpr_pthread_thread_local name = {0}
+
+#define gpr_tls_init(tls) GPR_ASSERT(0 == pthread_key_create(&(tls)->key, NULL))
+#define gpr_tls_destroy(tls) pthread_key_delete((tls)->key)
+#define gpr_tls_get(tls) ((intptr_t)pthread_getspecific((tls)->key))
+#ifdef __cplusplus
+extern "C" {
+#endif
+intptr_t gpr_tls_set(struct gpr_pthread_thread_local *tls, intptr_t value);
+#ifdef __cplusplus
+}
 #endif
 
-#endif  /* _LINUXTHREADS_H */
+#endif