31 lines
1.2 KiB
C
31 lines
1.2 KiB
C
// Copyright (c) 2012 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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// The following is duplicated from base/process_utils.h.
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// We shouldn't link against C++ code in a setuid binary.
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#ifndef SANDBOX_LINUX_SUID_PROCESS_UTIL_H_
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#define SANDBOX_LINUX_SUID_PROCESS_UTIL_H_
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#include <stdbool.h>
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#include <stdint.h>
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#include <sys/types.h>
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// This adjusts /proc/process/oom_score_adj so the Linux OOM killer
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// will prefer certain process types over others. The range for the
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// adjustment is [-1000, 1000], with [0, 1000] being user accessible.
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//
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// If the Linux system isn't new enough to use oom_score_adj, then we
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// try to set the older oom_adj value instead, scaling the score to
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// the required range of [0, 15]. This may result in some aliasing of
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// values, of course.
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bool AdjustOOMScore(pid_t process, int score);
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// This adjusts /sys/kernel/mm/chromeos-low_mem/margin so that
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// the kernel notifies us that we are low on memory when less than
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// |margin_mb| megabytes are available. Setting |margin_mb| to -1
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// turns off low memory notification.
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bool AdjustLowMemoryMargin(int64_t margin_mb);
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#endif // SANDBOX_LINUX_SUID_PROCESS_UTIL_H_
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