2011-04-02 15:28:58 -06:00
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// 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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2011-12-17 08:29:18 -07:00
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// +build darwin freebsd linux netbsd openbsd windows
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build: add build comments to core packages
The go/build package already recognizes
system-specific file names like
mycode_darwin.go
mycode_darwin_386.go
mycode_386.s
However, it is also common to write files that
apply to multiple architectures, so a recent CL added
to go/build the ability to process comments
listing a set of conditions for building. For example:
// +build darwin freebsd openbsd/386
says that this file should be compiled only on
OS X, FreeBSD, or 32-bit x86 OpenBSD systems.
These conventions are not yet documented
(hence this long CL description).
This CL adds build comments to the multi-system
files in the core library, a step toward making it
possible to use go/build to build them.
With this change go/build can handle crypto/rand,
exec, net, path/filepath, os/user, and time.
os and syscall need additional adjustments.
R=golang-dev, r, gri, r, gustavo
CC=golang-dev
https://golang.org/cl/5011046
2011-09-15 14:48:57 -06:00
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2011-04-02 15:28:58 -06:00
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package os
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import syscall "syscall"
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// Commonly known Unix errors.
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var (
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EPERM error = syscall.EPERM
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ENOENT error = syscall.ENOENT
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ESRCH error = syscall.ESRCH
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EINTR error = syscall.EINTR
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EIO error = syscall.EIO
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E2BIG error = syscall.E2BIG
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ENOEXEC error = syscall.ENOEXEC
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EBADF error = syscall.EBADF
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ECHILD error = syscall.ECHILD
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EDEADLK error = syscall.EDEADLK
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ENOMEM error = syscall.ENOMEM
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EACCES error = syscall.EACCES
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EFAULT error = syscall.EFAULT
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EBUSY error = syscall.EBUSY
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EEXIST error = syscall.EEXIST
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EXDEV error = syscall.EXDEV
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ENODEV error = syscall.ENODEV
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ENOTDIR error = syscall.ENOTDIR
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EISDIR error = syscall.EISDIR
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EINVAL error = syscall.EINVAL
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ENFILE error = syscall.ENFILE
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EMFILE error = syscall.EMFILE
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ENOTTY error = syscall.ENOTTY
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EFBIG error = syscall.EFBIG
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ENOSPC error = syscall.ENOSPC
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ESPIPE error = syscall.ESPIPE
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EROFS error = syscall.EROFS
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EMLINK error = syscall.EMLINK
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EPIPE error = syscall.EPIPE
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EAGAIN error = syscall.EAGAIN
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EDOM error = syscall.EDOM
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ERANGE error = syscall.ERANGE
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EADDRINUSE error = syscall.EADDRINUSE
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ECONNREFUSED error = syscall.ECONNREFUSED
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ENAMETOOLONG error = syscall.ENAMETOOLONG
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EAFNOSUPPORT error = syscall.EAFNOSUPPORT
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ETIMEDOUT error = syscall.ETIMEDOUT
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ENOTCONN error = syscall.ENOTCONN
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)
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// SyscallError records an error from a specific system call.
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type SyscallError struct {
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Syscall string
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Errno error
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}
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func (e *SyscallError) Error() string { return e.Syscall + ": " + e.Errno.Error() }
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// NewSyscallError returns, as an error, a new SyscallError
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// with the given system call name and error details.
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// As a convenience, if err is nil, NewSyscallError returns nil.
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func NewSyscallError(syscall string, err error) error {
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if err == nil {
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return nil
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}
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return &SyscallError{syscall, err}
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}
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