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| 1 // Copyright 2014 The Chromium Authors. All rights reserved. | 1 // Copyright 2014 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 "mojo/edk/embedder/platform_channel_pair.h" | 5 #include "mojo/edk/embedder/platform_channel_pair.h" |
| 6 | 6 |
| 7 #include <fcntl.h> | 7 #include <fcntl.h> |
| 8 #include <sys/socket.h> | 8 #include <sys/socket.h> |
| 9 #include <sys/types.h> | 9 #include <sys/types.h> |
| 10 #include <unistd.h> | 10 #include <unistd.h> |
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| 39 // TODO(vtl): Maybe fail gracefully if |socketpair()| fails. | 39 // TODO(vtl): Maybe fail gracefully if |socketpair()| fails. |
| 40 PCHECK(socketpair(AF_UNIX, SOCK_STREAM, 0, fds) == 0); | 40 PCHECK(socketpair(AF_UNIX, SOCK_STREAM, 0, fds) == 0); |
| 41 PCHECK(fcntl(fds[0], F_SETFL, O_NONBLOCK) == 0); | 41 PCHECK(fcntl(fds[0], F_SETFL, O_NONBLOCK) == 0); |
| 42 PCHECK(fcntl(fds[1], F_SETFL, O_NONBLOCK) == 0); | 42 PCHECK(fcntl(fds[1], F_SETFL, O_NONBLOCK) == 0); |
| 43 | 43 |
| 44 #if defined(OS_MACOSX) | 44 #if defined(OS_MACOSX) |
| 45 // This turns off |SIGPIPE| when writing to a closed socket (causing it to | 45 // This turns off |SIGPIPE| when writing to a closed socket (causing it to |
| 46 // fail with |EPIPE| instead). On Linux, we have to use |send...()| with | 46 // fail with |EPIPE| instead). On Linux, we have to use |send...()| with |
| 47 // |MSG_NOSIGNAL| -- which is not supported on Mac -- instead. | 47 // |MSG_NOSIGNAL| -- which is not supported on Mac -- instead. |
| 48 int no_sigpipe = 1; | 48 int no_sigpipe = 1; |
| 49 PCHECK(setsockopt(fds[0], SOL_SOCKET, SO_NOSIGPIPE, &no_sigpipe, | 49 PCHECK( |
| 50 sizeof(no_sigpipe)) == 0); | 50 setsockopt( |
| 51 PCHECK(setsockopt(fds[1], SOL_SOCKET, SO_NOSIGPIPE, &no_sigpipe, | 51 fds[0], SOL_SOCKET, SO_NOSIGPIPE, &no_sigpipe, sizeof(no_sigpipe)) == |
| 52 sizeof(no_sigpipe)) == 0); | 52 0); |
| 53 PCHECK( |
| 54 setsockopt( |
| 55 fds[1], SOL_SOCKET, SO_NOSIGPIPE, &no_sigpipe, sizeof(no_sigpipe)) == |
| 56 0); |
| 53 #endif // defined(OS_MACOSX) | 57 #endif // defined(OS_MACOSX) |
| 54 | 58 |
| 55 server_handle_.reset(PlatformHandle(fds[0])); | 59 server_handle_.reset(PlatformHandle(fds[0])); |
| 56 DCHECK(server_handle_.is_valid()); | 60 DCHECK(server_handle_.is_valid()); |
| 57 client_handle_.reset(PlatformHandle(fds[1])); | 61 client_handle_.reset(PlatformHandle(fds[1])); |
| 58 DCHECK(client_handle_.is_valid()); | 62 DCHECK(client_handle_.is_valid()); |
| 59 } | 63 } |
| 60 | 64 |
| 61 // static | 65 // static |
| 62 ScopedPlatformHandle PlatformChannelPair::PassClientHandleFromParentProcess( | 66 ScopedPlatformHandle PlatformChannelPair::PassClientHandleFromParentProcess( |
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| 102 << kMojoPlatformChannelHandleSwitch << "=" | 106 << kMojoPlatformChannelHandleSwitch << "=" |
| 103 << command_line->GetSwitchValueASCII(kMojoPlatformChannelHandleSwitch); | 107 << command_line->GetSwitchValueASCII(kMojoPlatformChannelHandleSwitch); |
| 104 // (Any existing switch won't actually be removed from the command line, but | 108 // (Any existing switch won't actually be removed from the command line, but |
| 105 // the last one appended takes precedence.) | 109 // the last one appended takes precedence.) |
| 106 command_line->AppendSwitchASCII(kMojoPlatformChannelHandleSwitch, | 110 command_line->AppendSwitchASCII(kMojoPlatformChannelHandleSwitch, |
| 107 base::IntToString(target_fd)); | 111 base::IntToString(target_fd)); |
| 108 } | 112 } |
| 109 | 113 |
| 110 } // namespace embedder | 114 } // namespace embedder |
| 111 } // namespace mojo | 115 } // namespace mojo |
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