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Diffstat (limited to 'vendor/github.com/prometheus/procfs/proc_limits.go')
| -rw-r--r-- | vendor/github.com/prometheus/procfs/proc_limits.go | 160 |
1 files changed, 0 insertions, 160 deletions
diff --git a/vendor/github.com/prometheus/procfs/proc_limits.go b/vendor/github.com/prometheus/procfs/proc_limits.go deleted file mode 100644 index dd20f198a..000000000 --- a/vendor/github.com/prometheus/procfs/proc_limits.go +++ /dev/null @@ -1,160 +0,0 @@ -// Copyright 2018 The Prometheus Authors -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package procfs - -import ( - "bufio" - "fmt" - "os" - "regexp" - "strconv" -) - -// ProcLimits represents the soft limits for each of the process's resource -// limits. For more information see getrlimit(2): -// http://man7.org/linux/man-pages/man2/getrlimit.2.html. -type ProcLimits struct { - // CPU time limit in seconds. - CPUTime uint64 - // Maximum size of files that the process may create. - FileSize uint64 - // Maximum size of the process's data segment (initialized data, - // uninitialized data, and heap). - DataSize uint64 - // Maximum size of the process stack in bytes. - StackSize uint64 - // Maximum size of a core file. - CoreFileSize uint64 - // Limit of the process's resident set in pages. - ResidentSet uint64 - // Maximum number of processes that can be created for the real user ID of - // the calling process. - Processes uint64 - // Value one greater than the maximum file descriptor number that can be - // opened by this process. - OpenFiles uint64 - // Maximum number of bytes of memory that may be locked into RAM. - LockedMemory uint64 - // Maximum size of the process's virtual memory address space in bytes. - AddressSpace uint64 - // Limit on the combined number of flock(2) locks and fcntl(2) leases that - // this process may establish. - FileLocks uint64 - // Limit of signals that may be queued for the real user ID of the calling - // process. - PendingSignals uint64 - // Limit on the number of bytes that can be allocated for POSIX message - // queues for the real user ID of the calling process. - MsqqueueSize uint64 - // Limit of the nice priority set using setpriority(2) or nice(2). - NicePriority uint64 - // Limit of the real-time priority set using sched_setscheduler(2) or - // sched_setparam(2). - RealtimePriority uint64 - // Limit (in microseconds) on the amount of CPU time that a process - // scheduled under a real-time scheduling policy may consume without making - // a blocking system call. - RealtimeTimeout uint64 -} - -const ( - limitsFields = 4 - limitsUnlimited = "unlimited" -) - -var ( - limitsMatch = regexp.MustCompile(`(Max \w+\s{0,1}?\w*\s{0,1}\w*)\s{2,}(\w+)\s+(\w+)`) -) - -// NewLimits returns the current soft limits of the process. -// -// Deprecated: use p.Limits() instead -func (p Proc) NewLimits() (ProcLimits, error) { - return p.Limits() -} - -// Limits returns the current soft limits of the process. -func (p Proc) Limits() (ProcLimits, error) { - f, err := os.Open(p.path("limits")) - if err != nil { - return ProcLimits{}, err - } - defer f.Close() - - var ( - l = ProcLimits{} - s = bufio.NewScanner(f) - ) - - s.Scan() // Skip limits header - - for s.Scan() { - //fields := limitsMatch.Split(s.Text(), limitsFields) - fields := limitsMatch.FindStringSubmatch(s.Text()) - if len(fields) != limitsFields { - return ProcLimits{}, fmt.Errorf("couldn't parse %q line %q", f.Name(), s.Text()) - } - - switch fields[1] { - case "Max cpu time": - l.CPUTime, err = parseUint(fields[2]) - case "Max file size": - l.FileSize, err = parseUint(fields[2]) - case "Max data size": - l.DataSize, err = parseUint(fields[2]) - case "Max stack size": - l.StackSize, err = parseUint(fields[2]) - case "Max core file size": - l.CoreFileSize, err = parseUint(fields[2]) - case "Max resident set": - l.ResidentSet, err = parseUint(fields[2]) - case "Max processes": - l.Processes, err = parseUint(fields[2]) - case "Max open files": - l.OpenFiles, err = parseUint(fields[2]) - case "Max locked memory": - l.LockedMemory, err = parseUint(fields[2]) - case "Max address space": - l.AddressSpace, err = parseUint(fields[2]) - case "Max file locks": - l.FileLocks, err = parseUint(fields[2]) - case "Max pending signals": - l.PendingSignals, err = parseUint(fields[2]) - case "Max msgqueue size": - l.MsqqueueSize, err = parseUint(fields[2]) - case "Max nice priority": - l.NicePriority, err = parseUint(fields[2]) - case "Max realtime priority": - l.RealtimePriority, err = parseUint(fields[2]) - case "Max realtime timeout": - l.RealtimeTimeout, err = parseUint(fields[2]) - } - if err != nil { - return ProcLimits{}, err - } - } - - return l, s.Err() -} - -func parseUint(s string) (uint64, error) { - if s == limitsUnlimited { - return 18446744073709551615, nil - } - i, err := strconv.ParseUint(s, 10, 64) - if err != nil { - return 0, fmt.Errorf("couldn't parse value %q: %w", s, err) - } - return i, nil -} |