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Unified Diff: sandbox/linux/syscall_broker/broker_channel.cc

Issue 723343002: Update from https://crrev.com/304121 (Closed) Base URL: git@github.com:domokit/mojo.git@master
Patch Set: Created 6 years, 1 month ago
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Index: sandbox/linux/syscall_broker/broker_channel.cc
diff --git a/sandbox/linux/syscall_broker/broker_channel.cc b/sandbox/linux/syscall_broker/broker_channel.cc
new file mode 100644
index 0000000000000000000000000000000000000000..fa0f7615fcade7f3258834b70d7b973216496d22
--- /dev/null
+++ b/sandbox/linux/syscall_broker/broker_channel.cc
@@ -0,0 +1,35 @@
+// Copyright 2014 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 "sandbox/linux/syscall_broker/broker_channel.h"
+
+#include <sys/socket.h>
+#include <sys/types.h>
+
+#include "base/logging.h"
+
+namespace sandbox {
+
+namespace syscall_broker {
+
+// static
+void BrokerChannel::CreatePair(EndPoint* reader, EndPoint* writer) {
+ DCHECK(reader);
+ DCHECK(writer);
+ int socket_pair[2];
+ // Use SOCK_SEQPACKET, to preserve message boundaries but we also want to be
+ // notified (recvmsg should return and not block) when the connection has
+ // been broken which could mean that the other end has been closed.
+ PCHECK(0 == socketpair(AF_UNIX, SOCK_SEQPACKET, 0, socket_pair));
+
+ reader->reset(socket_pair[0]);
+ PCHECK(0 == shutdown(reader->get(), SHUT_WR));
+
+ writer->reset(socket_pair[1]);
+ PCHECK(0 == shutdown(writer->get(), SHUT_RD));
+}
+
+} // namespace syscall_broker
+
+} // namespace sandbox
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