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ab552aa3b6
Unify the OS-specific versions of msigsave, msigrestore, sigblock, updatesigmask, and unblocksig into single versions in signal_unix.go. To do this, make sigprocmask work the same way on all systems, which required adding a definition of sigprocmask for linux and openbsd. Also add a single OS-specific function sigmaskToSigset. Change-Id: I7cbf75131dddb57eeefe648ef845b0791404f785 Reviewed-on: https://go-review.googlesource.com/29689 Run-TryBot: Ian Lance Taylor <iant@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: David Crawshaw <crawshaw@golang.org>
52 lines
1 KiB
Go
52 lines
1 KiB
Go
// Copyright 2009 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// +build !mips64
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// +build !mips64le
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// +build !s390x
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// +build linux
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package runtime
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const (
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_SS_DISABLE = 2
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_NSIG = 65
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_SI_USER = 0
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_SIG_BLOCK = 0
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_SIG_UNBLOCK = 1
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_SIG_SETMASK = 2
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_RLIMIT_AS = 9
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)
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// It's hard to tease out exactly how big a Sigset is, but
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// rt_sigprocmask crashes if we get it wrong, so if binaries
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// are running, this is right.
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type sigset [2]uint32
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type rlimit struct {
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rlim_cur uintptr
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rlim_max uintptr
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}
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var sigset_all = sigset{^uint32(0), ^uint32(0)}
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func sigaddset(mask *sigset, i int) {
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(*mask)[(i-1)/32] |= 1 << ((uint32(i) - 1) & 31)
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}
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func sigdelset(mask *sigset, i int) {
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(*mask)[(i-1)/32] &^= 1 << ((uint32(i) - 1) & 31)
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}
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func sigfillset(mask *uint64) {
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*mask = ^uint64(0)
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}
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//go:nosplit
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//go:nowritebarrierrec
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func sigmaskToSigset(m sigmask) sigset {
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var set sigset
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copy(set[:], m[:])
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return set
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}
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