github.com/gogf/gkafka@v1.0.1-0.20190702070843-033a14468069/third/golang.org/x/sys/unix/syscall_aix.go (about) 1 // Copyright 2018 The Go Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style 3 // license that can be found in the LICENSE file. 4 5 // +build aix 6 7 // Aix system calls. 8 // This file is compiled as ordinary Go code, 9 // but it is also input to mksyscall, 10 // which parses the //sys lines and generates system call stubs. 11 // Note that sometimes we use a lowercase //sys name and 12 // wrap it in our own nicer implementation. 13 14 package unix 15 16 import "unsafe" 17 18 /* 19 * Wrapped 20 */ 21 22 //sys utimes(path string, times *[2]Timeval) (err error) 23 func Utimes(path string, tv []Timeval) error { 24 if len(tv) != 2 { 25 return EINVAL 26 } 27 return utimes(path, (*[2]Timeval)(unsafe.Pointer(&tv[0]))) 28 } 29 30 //sys utimensat(dirfd int, path string, times *[2]Timespec, flag int) (err error) 31 func UtimesNano(path string, ts []Timespec) error { 32 if len(ts) != 2 { 33 return EINVAL 34 } 35 return utimensat(AT_FDCWD, path, (*[2]Timespec)(unsafe.Pointer(&ts[0])), 0) 36 } 37 38 func UtimesNanoAt(dirfd int, path string, ts []Timespec, flags int) error { 39 if ts == nil { 40 return utimensat(dirfd, path, nil, flags) 41 } 42 if len(ts) != 2 { 43 return EINVAL 44 } 45 return utimensat(dirfd, path, (*[2]Timespec)(unsafe.Pointer(&ts[0])), flags) 46 } 47 48 func (sa *SockaddrInet4) sockaddr() (unsafe.Pointer, _Socklen, error) { 49 if sa.Port < 0 || sa.Port > 0xFFFF { 50 return nil, 0, EINVAL 51 } 52 sa.raw.Family = AF_INET 53 p := (*[2]byte)(unsafe.Pointer(&sa.raw.Port)) 54 p[0] = byte(sa.Port >> 8) 55 p[1] = byte(sa.Port) 56 for i := 0; i < len(sa.Addr); i++ { 57 sa.raw.Addr[i] = sa.Addr[i] 58 } 59 return unsafe.Pointer(&sa.raw), SizeofSockaddrInet4, nil 60 } 61 62 func (sa *SockaddrInet6) sockaddr() (unsafe.Pointer, _Socklen, error) { 63 if sa.Port < 0 || sa.Port > 0xFFFF { 64 return nil, 0, EINVAL 65 } 66 sa.raw.Family = AF_INET6 67 p := (*[2]byte)(unsafe.Pointer(&sa.raw.Port)) 68 p[0] = byte(sa.Port >> 8) 69 p[1] = byte(sa.Port) 70 sa.raw.Scope_id = sa.ZoneId 71 for i := 0; i < len(sa.Addr); i++ { 72 sa.raw.Addr[i] = sa.Addr[i] 73 } 74 return unsafe.Pointer(&sa.raw), SizeofSockaddrInet6, nil 75 } 76 77 func (sa *SockaddrUnix) sockaddr() (unsafe.Pointer, _Socklen, error) { 78 name := sa.Name 79 n := len(name) 80 if n > len(sa.raw.Path) { 81 return nil, 0, EINVAL 82 } 83 if n == len(sa.raw.Path) && name[0] != '@' { 84 return nil, 0, EINVAL 85 } 86 sa.raw.Family = AF_UNIX 87 for i := 0; i < n; i++ { 88 sa.raw.Path[i] = uint8(name[i]) 89 } 90 // length is family (uint16), name, NUL. 91 sl := _Socklen(2) 92 if n > 0 { 93 sl += _Socklen(n) + 1 94 } 95 if sa.raw.Path[0] == '@' { 96 sa.raw.Path[0] = 0 97 // Don't count trailing NUL for abstract address. 98 sl-- 99 } 100 101 return unsafe.Pointer(&sa.raw), sl, nil 102 } 103 104 func Getsockname(fd int) (sa Sockaddr, err error) { 105 var rsa RawSockaddrAny 106 var len _Socklen = SizeofSockaddrAny 107 if err = getsockname(fd, &rsa, &len); err != nil { 108 return 109 } 110 return anyToSockaddr(fd, &rsa) 111 } 112 113 //sys getcwd(buf []byte) (err error) 114 115 const ImplementsGetwd = true 116 117 func Getwd() (ret string, err error) { 118 for len := uint64(4096); ; len *= 2 { 119 b := make([]byte, len) 120 err := getcwd(b) 121 if err == nil { 122 i := 0 123 for b[i] != 0 { 124 i++ 125 } 126 return string(b[0:i]), nil 127 } 128 if err != ERANGE { 129 return "", err 130 } 131 } 132 } 133 134 func Getcwd(buf []byte) (n int, err error) { 135 err = getcwd(buf) 136 if err == nil { 137 i := 0 138 for buf[i] != 0 { 139 i++ 140 } 141 n = i + 1 142 } 143 return 144 } 145 146 func Getgroups() (gids []int, err error) { 147 n, err := getgroups(0, nil) 148 if err != nil { 149 return nil, err 150 } 151 if n == 0 { 152 return nil, nil 153 } 154 155 // Sanity check group count. Max is 16 on BSD. 156 if n < 0 || n > 1000 { 157 return nil, EINVAL 158 } 159 160 a := make([]_Gid_t, n) 161 n, err = getgroups(n, &a[0]) 162 if err != nil { 163 return nil, err 164 } 165 gids = make([]int, n) 166 for i, v := range a[0:n] { 167 gids[i] = int(v) 168 } 169 return 170 } 171 172 func Setgroups(gids []int) (err error) { 173 if len(gids) == 0 { 174 return setgroups(0, nil) 175 } 176 177 a := make([]_Gid_t, len(gids)) 178 for i, v := range gids { 179 a[i] = _Gid_t(v) 180 } 181 return setgroups(len(a), &a[0]) 182 } 183 184 /* 185 * Socket 186 */ 187 188 //sys accept(s int, rsa *RawSockaddrAny, addrlen *_Socklen) (fd int, err error) 189 190 func Accept(fd int) (nfd int, sa Sockaddr, err error) { 191 var rsa RawSockaddrAny 192 var len _Socklen = SizeofSockaddrAny 193 nfd, err = accept(fd, &rsa, &len) 194 if nfd == -1 { 195 return 196 } 197 sa, err = anyToSockaddr(fd, &rsa) 198 if err != nil { 199 Close(nfd) 200 nfd = 0 201 } 202 return 203 } 204 205 func Recvmsg(fd int, p, oob []byte, flags int) (n, oobn int, recvflags int, from Sockaddr, err error) { 206 // Recvmsg not implemented on AIX 207 sa := new(SockaddrUnix) 208 return -1, -1, -1, sa, ENOSYS 209 } 210 211 func Sendmsg(fd int, p, oob []byte, to Sockaddr, flags int) (err error) { 212 _, err = SendmsgN(fd, p, oob, to, flags) 213 return 214 } 215 216 func SendmsgN(fd int, p, oob []byte, to Sockaddr, flags int) (n int, err error) { 217 // SendmsgN not implemented on AIX 218 return -1, ENOSYS 219 } 220 221 func anyToSockaddr(fd int, rsa *RawSockaddrAny) (Sockaddr, error) { 222 switch rsa.Addr.Family { 223 224 case AF_UNIX: 225 pp := (*RawSockaddrUnix)(unsafe.Pointer(rsa)) 226 sa := new(SockaddrUnix) 227 228 // Some versions of AIX have a bug in getsockname (see IV78655). 229 // We can't rely on sa.Len being set correctly. 230 n := SizeofSockaddrUnix - 3 // substract leading Family, Len, terminating NUL. 231 for i := 0; i < n; i++ { 232 if pp.Path[i] == 0 { 233 n = i 234 break 235 } 236 } 237 238 bytes := (*[10000]byte)(unsafe.Pointer(&pp.Path[0]))[0:n] 239 sa.Name = string(bytes) 240 return sa, nil 241 242 case AF_INET: 243 pp := (*RawSockaddrInet4)(unsafe.Pointer(rsa)) 244 sa := new(SockaddrInet4) 245 p := (*[2]byte)(unsafe.Pointer(&pp.Port)) 246 sa.Port = int(p[0])<<8 + int(p[1]) 247 for i := 0; i < len(sa.Addr); i++ { 248 sa.Addr[i] = pp.Addr[i] 249 } 250 return sa, nil 251 252 case AF_INET6: 253 pp := (*RawSockaddrInet6)(unsafe.Pointer(rsa)) 254 sa := new(SockaddrInet6) 255 p := (*[2]byte)(unsafe.Pointer(&pp.Port)) 256 sa.Port = int(p[0])<<8 + int(p[1]) 257 sa.ZoneId = pp.Scope_id 258 for i := 0; i < len(sa.Addr); i++ { 259 sa.Addr[i] = pp.Addr[i] 260 } 261 return sa, nil 262 } 263 return nil, EAFNOSUPPORT 264 } 265 266 func Gettimeofday(tv *Timeval) (err error) { 267 err = gettimeofday(tv, nil) 268 return 269 } 270 271 func Sendfile(outfd int, infd int, offset *int64, count int) (written int, err error) { 272 if raceenabled { 273 raceReleaseMerge(unsafe.Pointer(&ioSync)) 274 } 275 return sendfile(outfd, infd, offset, count) 276 } 277 278 // TODO 279 func sendfile(outfd int, infd int, offset *int64, count int) (written int, err error) { 280 return -1, ENOSYS 281 } 282 283 //sys getdirent(fd int, buf []byte) (n int, err error) 284 func ReadDirent(fd int, buf []byte) (n int, err error) { 285 return getdirent(fd, buf) 286 } 287 288 //sys wait4(pid Pid_t, status *_C_int, options int, rusage *Rusage) (wpid Pid_t, err error) 289 func Wait4(pid int, wstatus *WaitStatus, options int, rusage *Rusage) (wpid int, err error) { 290 var status _C_int 291 var r Pid_t 292 err = ERESTART 293 // AIX wait4 may return with ERESTART errno, while the processus is still 294 // active. 295 for err == ERESTART { 296 r, err = wait4(Pid_t(pid), &status, options, rusage) 297 } 298 wpid = int(r) 299 if wstatus != nil { 300 *wstatus = WaitStatus(status) 301 } 302 return 303 } 304 305 /* 306 * Wait 307 */ 308 309 type WaitStatus uint32 310 311 func (w WaitStatus) Stopped() bool { return w&0x40 != 0 } 312 func (w WaitStatus) StopSignal() Signal { 313 if !w.Stopped() { 314 return -1 315 } 316 return Signal(w>>8) & 0xFF 317 } 318 319 func (w WaitStatus) Exited() bool { return w&0xFF == 0 } 320 func (w WaitStatus) ExitStatus() int { 321 if !w.Exited() { 322 return -1 323 } 324 return int((w >> 8) & 0xFF) 325 } 326 327 func (w WaitStatus) Signaled() bool { return w&0x40 == 0 && w&0xFF != 0 } 328 func (w WaitStatus) Signal() Signal { 329 if !w.Signaled() { 330 return -1 331 } 332 return Signal(w>>16) & 0xFF 333 } 334 335 func (w WaitStatus) Continued() bool { return w&0x01000000 != 0 } 336 337 func (w WaitStatus) CoreDump() bool { return w&0x200 != 0 } 338 339 func (w WaitStatus) TrapCause() int { return -1 } 340 341 //sys ioctl(fd int, req uint, arg uintptr) (err error) 342 343 // ioctl itself should not be exposed directly, but additional get/set 344 // functions for specific types are permissible. 345 346 // IoctlSetInt performs an ioctl operation which sets an integer value 347 // on fd, using the specified request number. 348 func IoctlSetInt(fd int, req uint, value int) error { 349 return ioctl(fd, req, uintptr(value)) 350 } 351 352 func ioctlSetWinsize(fd int, req uint, value *Winsize) error { 353 return ioctl(fd, req, uintptr(unsafe.Pointer(value))) 354 } 355 356 func ioctlSetTermios(fd int, req uint, value *Termios) error { 357 return ioctl(fd, req, uintptr(unsafe.Pointer(value))) 358 } 359 360 // IoctlGetInt performs an ioctl operation which gets an integer value 361 // from fd, using the specified request number. 362 func IoctlGetInt(fd int, req uint) (int, error) { 363 var value int 364 err := ioctl(fd, req, uintptr(unsafe.Pointer(&value))) 365 return value, err 366 } 367 368 func IoctlGetWinsize(fd int, req uint) (*Winsize, error) { 369 var value Winsize 370 err := ioctl(fd, req, uintptr(unsafe.Pointer(&value))) 371 return &value, err 372 } 373 374 func IoctlGetTermios(fd int, req uint) (*Termios, error) { 375 var value Termios 376 err := ioctl(fd, req, uintptr(unsafe.Pointer(&value))) 377 return &value, err 378 } 379 380 // fcntl must never be called with cmd=F_DUP2FD because it doesn't work on AIX 381 // There is no way to create a custom fcntl and to keep //sys fcntl easily, 382 // Therefore, the programmer must call dup2 instead of fcntl in this case. 383 384 // FcntlInt performs a fcntl syscall on fd with the provided command and argument. 385 //sys FcntlInt(fd uintptr, cmd int, arg int) (r int,err error) = fcntl 386 387 // FcntlFlock performs a fcntl syscall for the F_GETLK, F_SETLK or F_SETLKW command. 388 //sys FcntlFlock(fd uintptr, cmd int, lk *Flock_t) (err error) = fcntl 389 390 //sys fcntl(fd int, cmd int, arg int) (val int, err error) 391 392 /* 393 * Direct access 394 */ 395 396 //sys Acct(path string) (err error) 397 //sys Chdir(path string) (err error) 398 //sys Chroot(path string) (err error) 399 //sys Close(fd int) (err error) 400 //sys Dup(oldfd int) (fd int, err error) 401 //sys Exit(code int) 402 //sys Faccessat(dirfd int, path string, mode uint32, flags int) (err error) 403 //sys Fchdir(fd int) (err error) 404 //sys Fchmod(fd int, mode uint32) (err error) 405 //sys Fchmodat(dirfd int, path string, mode uint32, flags int) (err error) 406 //sys Fchownat(dirfd int, path string, uid int, gid int, flags int) (err error) 407 //sys Fdatasync(fd int) (err error) 408 //sys Fsync(fd int) (err error) 409 // readdir_r 410 //sysnb Getpgid(pid int) (pgid int, err error) 411 412 //sys Getpgrp() (pid int) 413 414 //sysnb Getpid() (pid int) 415 //sysnb Getppid() (ppid int) 416 //sys Getpriority(which int, who int) (prio int, err error) 417 //sysnb Getrusage(who int, rusage *Rusage) (err error) 418 //sysnb Getsid(pid int) (sid int, err error) 419 //sysnb Kill(pid int, sig Signal) (err error) 420 //sys Klogctl(typ int, buf []byte) (n int, err error) = syslog 421 //sys Mkdir(dirfd int, path string, mode uint32) (err error) 422 //sys Mkdirat(dirfd int, path string, mode uint32) (err error) 423 //sys Mkfifo(path string, mode uint32) (err error) 424 //sys Mknod(path string, mode uint32, dev int) (err error) 425 //sys Mknodat(dirfd int, path string, mode uint32, dev int) (err error) 426 //sys Nanosleep(time *Timespec, leftover *Timespec) (err error) 427 //sys Open(path string, mode int, perm uint32) (fd int, err error) = open64 428 //sys Openat(dirfd int, path string, flags int, mode uint32) (fd int, err error) 429 //sys read(fd int, p []byte) (n int, err error) 430 //sys Readlink(path string, buf []byte) (n int, err error) 431 //sys Renameat(olddirfd int, oldpath string, newdirfd int, newpath string) (err error) 432 //sys Setdomainname(p []byte) (err error) 433 //sys Sethostname(p []byte) (err error) 434 //sysnb Setpgid(pid int, pgid int) (err error) 435 //sysnb Setsid() (pid int, err error) 436 //sysnb Settimeofday(tv *Timeval) (err error) 437 438 //sys Setuid(uid int) (err error) 439 //sys Setgid(uid int) (err error) 440 441 //sys Setpriority(which int, who int, prio int) (err error) 442 //sys Statx(dirfd int, path string, flags int, mask int, stat *Statx_t) (err error) 443 //sys Sync() 444 //sysnb Times(tms *Tms) (ticks uintptr, err error) 445 //sysnb Umask(mask int) (oldmask int) 446 //sysnb Uname(buf *Utsname) (err error) 447 //TODO umount 448 // //sys Unmount(target string, flags int) (err error) = umount 449 //sys Unlink(path string) (err error) 450 //sys Unlinkat(dirfd int, path string, flags int) (err error) 451 //sys Ustat(dev int, ubuf *Ustat_t) (err error) 452 //sys write(fd int, p []byte) (n int, err error) 453 //sys readlen(fd int, p *byte, np int) (n int, err error) = read 454 //sys writelen(fd int, p *byte, np int) (n int, err error) = write 455 456 //sys Dup2(oldfd int, newfd int) (err error) 457 //sys Fadvise(fd int, offset int64, length int64, advice int) (err error) = posix_fadvise64 458 //sys Fchown(fd int, uid int, gid int) (err error) 459 //sys Fstat(fd int, stat *Stat_t) (err error) 460 //sys Fstatat(dirfd int, path string, stat *Stat_t, flags int) (err error) = fstatat 461 //sys Fstatfs(fd int, buf *Statfs_t) (err error) 462 //sys Ftruncate(fd int, length int64) (err error) 463 //sysnb Getegid() (egid int) 464 //sysnb Geteuid() (euid int) 465 //sysnb Getgid() (gid int) 466 //sysnb Getuid() (uid int) 467 //sys Lchown(path string, uid int, gid int) (err error) 468 //sys Listen(s int, n int) (err error) 469 //sys Lstat(path string, stat *Stat_t) (err error) 470 //sys Pause() (err error) 471 //sys Pread(fd int, p []byte, offset int64) (n int, err error) = pread64 472 //sys Pwrite(fd int, p []byte, offset int64) (n int, err error) = pwrite64 473 //TODO Select 474 // //sys Select(nfd int, r *FdSet, w *FdSet, e *FdSet, timeout *Timeval) (n int, err error) 475 //sys Pselect(nfd int, r *FdSet, w *FdSet, e *FdSet, timeout *Timespec, sigmask *Sigset_t) (n int, err error) 476 //sysnb Setregid(rgid int, egid int) (err error) 477 //sysnb Setreuid(ruid int, euid int) (err error) 478 //sys Shutdown(fd int, how int) (err error) 479 //sys Splice(rfd int, roff *int64, wfd int, woff *int64, len int, flags int) (n int64, err error) 480 //sys Stat(path string, stat *Stat_t) (err error) 481 //sys Statfs(path string, buf *Statfs_t) (err error) 482 //sys Truncate(path string, length int64) (err error) 483 484 //sys bind(s int, addr unsafe.Pointer, addrlen _Socklen) (err error) 485 //sys connect(s int, addr unsafe.Pointer, addrlen _Socklen) (err error) 486 //sysnb getgroups(n int, list *_Gid_t) (nn int, err error) 487 //sysnb setgroups(n int, list *_Gid_t) (err error) 488 //sys getsockopt(s int, level int, name int, val unsafe.Pointer, vallen *_Socklen) (err error) 489 //sys setsockopt(s int, level int, name int, val unsafe.Pointer, vallen uintptr) (err error) 490 //sysnb socket(domain int, typ int, proto int) (fd int, err error) 491 //sysnb socketpair(domain int, typ int, proto int, fd *[2]int32) (err error) 492 //sysnb getpeername(fd int, rsa *RawSockaddrAny, addrlen *_Socklen) (err error) 493 //sysnb getsockname(fd int, rsa *RawSockaddrAny, addrlen *_Socklen) (err error) 494 //sys recvfrom(fd int, p []byte, flags int, from *RawSockaddrAny, fromlen *_Socklen) (n int, err error) 495 //sys sendto(s int, buf []byte, flags int, to unsafe.Pointer, addrlen _Socklen) (err error) 496 //sys recvmsg(s int, msg *Msghdr, flags int) (n int, err error) 497 //sys sendmsg(s int, msg *Msghdr, flags int) (n int, err error) 498 499 //sys munmap(addr uintptr, length uintptr) (err error) 500 501 var mapper = &mmapper{ 502 active: make(map[*byte][]byte), 503 mmap: mmap, 504 munmap: munmap, 505 } 506 507 func Mmap(fd int, offset int64, length int, prot int, flags int) (data []byte, err error) { 508 return mapper.Mmap(fd, offset, length, prot, flags) 509 } 510 511 func Munmap(b []byte) (err error) { 512 return mapper.Munmap(b) 513 } 514 515 //sys Madvise(b []byte, advice int) (err error) 516 //sys Mprotect(b []byte, prot int) (err error) 517 //sys Mlock(b []byte) (err error) 518 //sys Mlockall(flags int) (err error) 519 //sys Msync(b []byte, flags int) (err error) 520 //sys Munlock(b []byte) (err error) 521 //sys Munlockall() (err error) 522 523 //sysnb pipe(p *[2]_C_int) (err error) 524 525 func Pipe(p []int) (err error) { 526 if len(p) != 2 { 527 return EINVAL 528 } 529 var pp [2]_C_int 530 err = pipe(&pp) 531 p[0] = int(pp[0]) 532 p[1] = int(pp[1]) 533 return 534 } 535 536 //sys poll(fds *PollFd, nfds int, timeout int) (n int, err error) 537 538 func Poll(fds []PollFd, timeout int) (n int, err error) { 539 if len(fds) == 0 { 540 return poll(nil, 0, timeout) 541 } 542 return poll(&fds[0], len(fds), timeout) 543 } 544 545 //sys gettimeofday(tv *Timeval, tzp *Timezone) (err error) 546 //sysnb Time(t *Time_t) (tt Time_t, err error) 547 //sys Utime(path string, buf *Utimbuf) (err error)