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author | 2025-03-09 17:47:56 +0100 | |
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committer | 2025-03-10 01:59:49 +0100 | |
commit | 3ac1ee16f377d31a0fb80c8dae28b6239ac4229e (patch) | |
tree | f61faa581feaaeaba2542b9f2b8234a590684413 /vendor/golang.org/x/sys/unix/affinity_linux.go | |
parent | [chore] update URLs to forked source (diff) | |
download | gotosocial-3ac1ee16f377d31a0fb80c8dae28b6239ac4229e.tar.xz |
[chore] remove vendor
Diffstat (limited to 'vendor/golang.org/x/sys/unix/affinity_linux.go')
-rw-r--r-- | vendor/golang.org/x/sys/unix/affinity_linux.go | 86 |
1 files changed, 0 insertions, 86 deletions
diff --git a/vendor/golang.org/x/sys/unix/affinity_linux.go b/vendor/golang.org/x/sys/unix/affinity_linux.go deleted file mode 100644 index 6e5c81acd..000000000 --- a/vendor/golang.org/x/sys/unix/affinity_linux.go +++ /dev/null @@ -1,86 +0,0 @@ -// Copyright 2018 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -// CPU affinity functions - -package unix - -import ( - "math/bits" - "unsafe" -) - -const cpuSetSize = _CPU_SETSIZE / _NCPUBITS - -// CPUSet represents a CPU affinity mask. -type CPUSet [cpuSetSize]cpuMask - -func schedAffinity(trap uintptr, pid int, set *CPUSet) error { - _, _, e := RawSyscall(trap, uintptr(pid), uintptr(unsafe.Sizeof(*set)), uintptr(unsafe.Pointer(set))) - if e != 0 { - return errnoErr(e) - } - return nil -} - -// SchedGetaffinity gets the CPU affinity mask of the thread specified by pid. -// If pid is 0 the calling thread is used. -func SchedGetaffinity(pid int, set *CPUSet) error { - return schedAffinity(SYS_SCHED_GETAFFINITY, pid, set) -} - -// SchedSetaffinity sets the CPU affinity mask of the thread specified by pid. -// If pid is 0 the calling thread is used. -func SchedSetaffinity(pid int, set *CPUSet) error { - return schedAffinity(SYS_SCHED_SETAFFINITY, pid, set) -} - -// Zero clears the set s, so that it contains no CPUs. -func (s *CPUSet) Zero() { - for i := range s { - s[i] = 0 - } -} - -func cpuBitsIndex(cpu int) int { - return cpu / _NCPUBITS -} - -func cpuBitsMask(cpu int) cpuMask { - return cpuMask(1 << (uint(cpu) % _NCPUBITS)) -} - -// Set adds cpu to the set s. -func (s *CPUSet) Set(cpu int) { - i := cpuBitsIndex(cpu) - if i < len(s) { - s[i] |= cpuBitsMask(cpu) - } -} - -// Clear removes cpu from the set s. -func (s *CPUSet) Clear(cpu int) { - i := cpuBitsIndex(cpu) - if i < len(s) { - s[i] &^= cpuBitsMask(cpu) - } -} - -// IsSet reports whether cpu is in the set s. -func (s *CPUSet) IsSet(cpu int) bool { - i := cpuBitsIndex(cpu) - if i < len(s) { - return s[i]&cpuBitsMask(cpu) != 0 - } - return false -} - -// Count returns the number of CPUs in the set s. -func (s *CPUSet) Count() int { - c := 0 - for _, b := range s { - c += bits.OnesCount64(uint64(b)) - } - return c -} |