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// Copyright 2009 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.
package syscall
// File operations for Linux
import syscall "syscall"
//export Stat
//export stat, fstat, lstat
//export open, creat, close, read, write, pipe
//export unlink
func StatToInt(s *Stat) int64;
func Addr32ToInt(s *int32) int64;
type dev_t uint64;
type ino_t uint64;
type mode_t uint32;
type nlink_t uint64;
type uid_t uint32;
type gid_t uint32;
type off_t int64;
type blksize_t int64;
type blkcnt_t int64;
type time_t int64;
type Timespec struct {
tv_sec time_t;
tv_nsec int64;
}
export type Stat struct {
st_dev dev_t; /* ID of device containing file */
st_ino ino_t; /* inode number */
st_nlink nlink_t; /* number of hard links */
st_mode mode_t; /* protection */
st_uid uid_t; /* user ID of owner */
st_gid gid_t; /* group ID of owner */
pad0 int32;
st_rdev dev_t; /* device ID (if special file) */
st_size off_t; /* total size, in bytes */
st_blksize blksize_t; /* blocksize for filesystem I/O */
st_blocks blkcnt_t; /* number of blocks allocated */
st_atime Timespec; /* time of last access */
st_mtime Timespec; /* time of last modification */
st_ctime Timespec; /* time of last status change */
st_unused4 int64;
st_unused5 int64;
st_unused6 int64;
}
export const (
O_RDONLY = 0x0;
O_WRONLY = 0x1;
O_RDWR = 0x2;
O_APPEND = 0x400;
O_ASYNC = 0x2000;
O_CREAT = 0x40;
O_NOCTTY = 0x100;
O_NONBLOCK = 0x800;
O_NDELAY = O_NONBLOCK;
O_SYNC = 0x1000;
O_TRUNC = 0x200;
)
const NameBufsize = 512
export func open(name string, mode int64, perm int64) (ret int64, errno int64) {
var namebuf [NameBufsize]byte;
if !StringToBytes(&namebuf, name) {
return -1, syscall.ENAMETOOLONG
}
const SYSOPEN = 2;
r1, r2, err := syscall.Syscall(SYSOPEN, AddrToInt(&namebuf[0]), mode, perm);
return r1, err;
}
export func creat(name string, perm int64) (ret int64, errno int64) {
var namebuf [NameBufsize]byte;
if !StringToBytes(&namebuf, name) {
return -1, syscall.ENAMETOOLONG
}
const SYSOPEN = 2;
r1, r2, err := syscall.Syscall(SYSOPEN, AddrToInt(&namebuf[0]), O_CREAT|O_WRONLY|O_TRUNC, perm);
return r1, err;
}
export func close(fd int64) (ret int64, errno int64) {
const SYSCLOSE = 3;
r1, r2, err := syscall.Syscall(SYSCLOSE, fd, 0, 0);
return r1, err;
}
export func read(fd int64, buf *byte, nbytes int64) (ret int64, errno int64) {
const SYSREAD = 0;
r1, r2, err := syscall.Syscall(SYSREAD, fd, AddrToInt(buf), nbytes);
return r1, err;
}
export func write(fd int64, buf *byte, nbytes int64) (ret int64, errno int64) {
const SYSWRITE = 1;
r1, r2, err := syscall.Syscall(SYSWRITE, fd, AddrToInt(buf), nbytes);
return r1, err;
}
export func pipe(fds *[2]int64) (ret int64, errno int64) {
const SYSPIPE = 22;
var t [2] int32;
r1, r2, err := syscall.Syscall(SYSPIPE, Addr32ToInt(&t[0]), 0, 0);
if r1 < 0 {
return r1, err;
}
fds[0] = int64(t[0]);
fds[1] = int64(t[1]);
return 0, 0;
}
export func stat(name string, buf *Stat) (ret int64, errno int64) {
var namebuf [NameBufsize]byte;
if !StringToBytes(&namebuf, name) {
return -1, syscall.ENAMETOOLONG
}
const SYSSTAT = 4;
r1, r2, err := syscall.Syscall(SYSSTAT, AddrToInt(&namebuf[0]), StatToInt(buf), 0);
return r1, err;
}
export func lstat(name *byte, buf *Stat) (ret int64, errno int64) {
const SYSLSTAT = 6;
r1, r2, err := syscall.Syscall(SYSLSTAT, AddrToInt(name), StatToInt(buf), 0);
return r1, err;
}
export func fstat(fd int64, buf *Stat) (ret int64, errno int64) {
const SYSFSTAT = 5;
r1, r2, err := syscall.Syscall(SYSFSTAT, fd, StatToInt(buf), 0);
return r1, err;
}
export func unlink(name string) (ret int64, errno int64) {
var namebuf [NameBufsize]byte;
if !StringToBytes(&namebuf, name) {
return -1, syscall.ENAMETOOLONG
}
const SYSUNLINK = 87;
r1, r2, err := syscall.Syscall(SYSUNLINK, AddrToInt(&namebuf[0]), 0, 0);
return r1, err;
}
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