Initial checkin of gRPC to third_party/

third_party/grpc/src/core/iomgr/socket_utils_posix.c

Index: third_party/grpc/src/core/iomgr/socket_utils_posix.c
diff --git a/third_party/tcmalloc/vendor/src/base/synchronization_profiling.h b/third_party/grpc/src/core/iomgr/socket_utils_posix.c
similarity index 63%
copy from third_party/tcmalloc/vendor/src/base/synchronization_profiling.h
copy to third_party/grpc/src/core/iomgr/socket_utils_posix.c
index cf02c218a111806189f71f7b528a83b5ceb164a4..3c56b4674431fbcc898bc9fb7d265ef1f1cc3678 100644
--- a/third_party/tcmalloc/vendor/src/base/synchronization_profiling.h
+++ b/third_party/grpc/src/core/iomgr/socket_utils_posix.c
@@ -1,4 +1,6 @@
-/* Copyright (c) 2010, Google Inc.
+/*
+ *
+ * Copyright 2015, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -27,24 +29,42 @@
  * (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: Chris Ruemmler
  */
 
-#ifndef BASE_AUXILIARY_SYNCHRONIZATION_PROFILING_H_
-#define BASE_AUXILIARY_SYNCHRONIZATION_PROFILING_H_
+#include <grpc/support/port_platform.h>
+
+#ifdef GPR_POSIX_SOCKETUTILS
+
+#include "src/core/iomgr/socket_utils_posix.h"
 
-#include "base/basictypes.h"
+#include <fcntl.h>
+#include <sys/socket.h>
+#include <unistd.h>
 
-namespace base {
+#include <grpc/support/log.h>
 
-// We can do contention-profiling of SpinLocks, but the code is in
-// mutex.cc, which is not always linked in with spinlock.  Hence we
-// provide a weak definition, which are used if mutex.cc isn't linked in.
+int grpc_accept4(int sockfd, struct sockaddr *addr, socklen_t *addrlen,
+                 int nonblock, int cloexec) {
+  int fd, flags;
 
-// Submit the number of cycles the spinlock spent contending.
-ATTRIBUTE_WEAK extern void SubmitSpinLockProfileData(const void *, int64);
-extern void SubmitSpinLockProfileData(const void *contendedlock,
-                                      int64 wait_cycles) {}
+  fd = accept(sockfd, addr, addrlen);
+  if (fd >= 0) {
+    if (nonblock) {
+      flags = fcntl(fd, F_GETFL, 0);
+      if (flags < 0) goto close_and_error;
+      if (fcntl(fd, F_SETFL, flags | O_NONBLOCK) != 0) goto close_and_error;
+    }
+    if (cloexec) {
+      flags = fcntl(fd, F_GETFD, 0);
+      if (flags < 0) goto close_and_error;
+      if (fcntl(fd, F_SETFD, flags | FD_CLOEXEC) != 0) goto close_and_error;
+    }
+  }
+  return fd;
+
+close_and_error:
+  close(fd);
+  return -1;
 }
-#endif  // BASE_AUXILIARY_SYNCHRONIZATION_PROFILING_H_
+
+#endif /* GPR_POSIX_SOCKETUTILS */