POSIX: Add a macro for handling EINTR.

net/base/telnet_server.cc

 // Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "build/build_config.h"
 
 #if defined(OS_WIN)
 // winsock2.h must be included first in order to ensure it is included before
 // windows.h.
 #include <winsock2.h>
 #elif defined(OS_POSIX)
 #include <errno.h>
 #include <sys/socket.h>
 #include "base/message_loop.h"
 #include "net/base/net_errors.h"
 #include "third_party/libevent/event.h"
 #include "base/message_pump_libevent.h"
 #endif
 
+#include "base/eintr_wrappers.h"
 #include "net/base/telnet_server.h"
 
 #if defined(OS_POSIX)
 // Used same name as in Windows to avoid #ifdef where refrenced
 #define SOCKET int
 const int INVALID_SOCKET = -1;
 const int SOCKET_ERROR = -1;
 struct event;  // From libevent
 #endif
 
@@ skipping 213 matching lines @@
         input_state_ = NOT_IN_IAC_OR_ESC_SEQUENCE;
       }
       break;
   }
 }
 
 void TelnetServer::Read() {
   char buf[kReadBufSize + 1];
   int len;
   do {
-    len = recv(socket_, buf, kReadBufSize, 0);
+    len = HANDLE_EINTR(recv(socket_, buf, kReadBufSize, 0));
 
 #if defined(OS_WIN)
     if (len == SOCKET_ERROR) {
       int err = WSAGetLastError();
       if (err == WSAEWOULDBLOCK)
         break;
 #else
     if (len == SOCKET_ERROR) {
       if (errno == EWOULDBLOCK || errno == EAGAIN)
         break;
 #endif
     } else if (len == 0) {
       Close();
     } else {
       const char *data = buf;
       for (int i = 0; i < len; ++i) {
         unsigned char c = static_cast<unsigned char>(*data);
         StateMachineStep(c);
         data++;
       }
     }
   } while (len == kReadBufSize);
 }