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