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49 lines
1.7 KiB
C
49 lines
1.7 KiB
C
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// Copyright 2016 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef BASE_MAC_MACH_PORT_UTIL_H_
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#define BASE_MAC_MACH_PORT_UTIL_H_
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#include <mach/mach.h>
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#include "base/base_export.h"
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#include "base/mac/scoped_mach_port.h"
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namespace base {
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enum class MachCreateError {
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ERROR_MAKE_RECEIVE_PORT,
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ERROR_SET_ATTRIBUTES,
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ERROR_EXTRACT_DEST_RIGHT,
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ERROR_SEND_MACH_PORT,
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};
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// Sends a Mach port to |dest_port|. Assumes that |dest_port| is a send once
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// right. Takes ownership of |dest_port|.
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BASE_EXPORT kern_return_t SendMachPort(mach_port_t dest_port,
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mach_port_t port_to_send,
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int disposition);
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// Receives a Mach port from |port_to_listen_on|, which should have exactly one
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// queued message. Returns |MACH_PORT_NULL| on any error.
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BASE_EXPORT base::mac::ScopedMachSendRight ReceiveMachPort(
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mach_port_t port_to_listen_on);
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// Creates an intermediate Mach port in |task_port| and sends |port_to_insert|
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// as a mach_msg to the intermediate Mach port.
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// |task_port| is the task port of another process.
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// |port_to_insert| must be a send right in the current task's name space.
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// Returns the intermediate port on success, and MACH_PORT_NULL on failure.
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// On failure, |error_code| is set if not null.
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// This method takes ownership of |port_to_insert|. On success, ownership is
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// passed to the intermediate Mach port.
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BASE_EXPORT mach_port_name_t CreateIntermediateMachPort(
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mach_port_t task_port,
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base::mac::ScopedMachSendRight port_to_insert,
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MachCreateError* error_code);
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} // namespace base
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#endif // BASE_MAC_MACH_PORT_UTIL_H_
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