github.com/m3db/m3@v1.5.1-0.20231129193456-75a402aa583b/src/x/os/limits.go

// Copyright (c) 2018 Uber Technologies, Inc.
//
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// of this software and associated documentation files (the "Software"), to deal
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// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
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// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// THE SOFTWARE.

package xos

// ProcessLimits captures the different process limits.
type ProcessLimits struct {
	NoFileCurr    uint64 // RLIMIT_NOFILE Current
	NoFileMax     uint64 // RLIMIT_NOFILE Max
	VMMaxMapCount int64  // corresponds to /proc/sys/vm/max_map_count
	VMSwappiness  int64  // corresponds to /proc/sys/vm/swappiness
}

// RaiseProcessNoFileToNROpenResult captures the result of trying to
// raise the process num files open limit to the nr_open system value.
type RaiseProcessNoFileToNROpenResult struct {
	RaisePerformed  bool
	NROpenValue     uint64
	NoFileMaxValue  uint64
	NoFileCurrValue uint64
}