jochen
be92762969
The live tests reached one shared bus and assert, read and remove the mesh's own objects by their fixed names, so packages run in parallel deleted what each other read and the suite passed only one package at a time; a red suite read as noise. internal/testbus starts a server per test, linked in at the nats-server release go.mod pins, and a test holds that pin to the catalogue's bus image and to the facts snapshot's bus when there is one, so the tests never run a bus the mesh does not. The waiter test read a timing (the most connections held at one look) and now reads the state it means (the fewest held across the wait). make check runs the packages in parallel under the race detector, with a timeout.
112 lines
2.3 KiB
Go
112 lines
2.3 KiB
Go
// Copyright 2016 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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package unix
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import (
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"errors"
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"fmt"
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"strconv"
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)
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// Pledge implements the pledge syscall.
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//
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// This changes both the promises and execpromises; use PledgePromises or
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// PledgeExecpromises to only change the promises or execpromises
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// respectively.
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//
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// For more information see pledge(2).
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func Pledge(promises, execpromises string) error {
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if err := pledgeAvailable(); err != nil {
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return err
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}
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pptr, err := BytePtrFromString(promises)
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if err != nil {
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return err
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}
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exptr, err := BytePtrFromString(execpromises)
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if err != nil {
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return err
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}
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return pledge(pptr, exptr)
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}
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// PledgePromises implements the pledge syscall.
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//
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// This changes the promises and leaves the execpromises untouched.
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//
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// For more information see pledge(2).
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func PledgePromises(promises string) error {
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if err := pledgeAvailable(); err != nil {
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return err
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}
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pptr, err := BytePtrFromString(promises)
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if err != nil {
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return err
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}
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return pledge(pptr, nil)
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}
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// PledgeExecpromises implements the pledge syscall.
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//
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// This changes the execpromises and leaves the promises untouched.
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//
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// For more information see pledge(2).
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func PledgeExecpromises(execpromises string) error {
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if err := pledgeAvailable(); err != nil {
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return err
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}
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exptr, err := BytePtrFromString(execpromises)
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if err != nil {
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return err
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}
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return pledge(nil, exptr)
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}
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// majmin returns major and minor version number for an OpenBSD system.
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func majmin() (major int, minor int, err error) {
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var v Utsname
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err = Uname(&v)
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if err != nil {
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return
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}
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major, err = strconv.Atoi(string(v.Release[0]))
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if err != nil {
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err = errors.New("cannot parse major version number returned by uname")
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return
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}
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minor, err = strconv.Atoi(string(v.Release[2]))
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if err != nil {
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err = errors.New("cannot parse minor version number returned by uname")
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return
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}
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return
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}
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// pledgeAvailable checks for availability of the pledge(2) syscall
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// based on the running OpenBSD version.
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func pledgeAvailable() error {
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maj, min, err := majmin()
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if err != nil {
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return err
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}
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// Require OpenBSD 6.4 as a minimum.
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if maj < 6 || (maj == 6 && min <= 3) {
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return fmt.Errorf("cannot call Pledge on OpenBSD %d.%d", maj, min)
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}
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return nil
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}
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