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| 1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #include "base/sync_socket.h" | 5 #include "base/sync_socket.h" |
| 6 | 6 |
| 7 #include <errno.h> | 7 #include <errno.h> |
| 8 #include <limits.h> | 8 #include <limits.h> |
| 9 #include <stdio.h> | 9 #include <stdio.h> |
| 10 #include <sys/types.h> | 10 #include <sys/types.h> |
| 11 #include <sys/ioctl.h> | 11 #include <sys/ioctl.h> |
| 12 #include <sys/socket.h> | 12 #include <sys/socket.h> |
| 13 | 13 |
| 14 #if defined(OS_SOLARIS) | 14 #if defined(OS_SOLARIS) |
| 15 #include <sys/filio.h> | 15 #include <sys/filio.h> |
| 16 #endif | 16 #endif |
| 17 | 17 |
| 18 #include "base/file_util.h" | 18 #include "base/file_util.h" |
| 19 #include "base/logging.h" | 19 #include "base/logging.h" |
| 20 | 20 |
| 21 | 21 |
| 22 namespace base { | 22 namespace base { |
| 23 | 23 |
| 24 namespace { | 24 namespace { |
| 25 // To avoid users sending negative message lengths to Send/Receive | 25 // To avoid users sending negative message lengths to Send/Receive |
| 26 // we clamp message lengths, which are size_t, to no more than INT_MAX. | 26 // we clamp message lengths, which are size_t, to no more than INT_MAX. |
| 27 const size_t kMaxMessageLength = static_cast<size_t>(INT_MAX); | 27 const size_t kMaxMessageLength = static_cast<size_t>(INT_MAX); |
| 28 | 28 |
| 29 static const SyncSocket::Handle kInvalidHandle = -1; | 29 } // namespace |
| 30 | 30 |
| 31 } // namespace | 31 const SyncSocket::Handle SyncSocket::kInvalidHandle = -1; |
| 32 | 32 |
| 33 bool SyncSocket::CreatePair(SyncSocket* pair[2]) { | 33 bool SyncSocket::CreatePair(SyncSocket* pair[2]) { |
| 34 Handle handles[2] = { kInvalidHandle, kInvalidHandle }; | 34 Handle handles[2] = { kInvalidHandle, kInvalidHandle }; |
| 35 SyncSocket* tmp_sockets[2] = { NULL, NULL }; | 35 SyncSocket* tmp_sockets[2] = { NULL, NULL }; |
| 36 #if defined(OS_MACOSX) | 36 #if defined(OS_MACOSX) |
| 37 int nosigpipe = 1; | 37 int nosigpipe = 1; |
| 38 #endif // defined(OS_MACOSX) | 38 #endif // defined(OS_MACOSX) |
| 39 | 39 |
| 40 // Create the two SyncSocket objects first to avoid ugly cleanup issues. | 40 // Create the two SyncSocket objects first to avoid ugly cleanup issues. |
| 41 tmp_sockets[0] = new SyncSocket(kInvalidHandle); | 41 tmp_sockets[0] = new SyncSocket(kInvalidHandle); |
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| 111 size_t SyncSocket::Peek() { | 111 size_t SyncSocket::Peek() { |
| 112 int number_chars; | 112 int number_chars; |
| 113 if (-1 == ioctl(handle_, FIONREAD, &number_chars)) { | 113 if (-1 == ioctl(handle_, FIONREAD, &number_chars)) { |
| 114 // If there is an error in ioctl, signal that the channel would block. | 114 // If there is an error in ioctl, signal that the channel would block. |
| 115 return 0; | 115 return 0; |
| 116 } | 116 } |
| 117 return (size_t) number_chars; | 117 return (size_t) number_chars; |
| 118 } | 118 } |
| 119 | 119 |
| 120 } // namespace base | 120 } // namespace base |
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