|
1 // Copyright 2009 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 // Solaris system calls. |
|
6 // This file is compiled as ordinary Go code, |
|
7 // but it is also input to mksyscall, |
|
8 // which parses the //sys lines and generates system call stubs. |
|
9 // Note that sometimes we use a lowercase //sys name and wrap |
|
10 // it in our own nicer implementation, either here or in |
|
11 // syscall_solaris.go or syscall_unix.go. |
|
12 |
|
13 package unix |
|
14 |
|
15 import ( |
|
16 "syscall" |
|
17 "unsafe" |
|
18 ) |
|
19 |
|
20 // Implemented in runtime/syscall_solaris.go. |
|
21 type syscallFunc uintptr |
|
22 |
|
23 func rawSysvicall6(trap, nargs, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2 uintptr, err syscall.Errno) |
|
24 func sysvicall6(trap, nargs, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2 uintptr, err syscall.Errno) |
|
25 |
|
26 // SockaddrDatalink implements the Sockaddr interface for AF_LINK type sockets. |
|
27 type SockaddrDatalink struct { |
|
28 Family uint16 |
|
29 Index uint16 |
|
30 Type uint8 |
|
31 Nlen uint8 |
|
32 Alen uint8 |
|
33 Slen uint8 |
|
34 Data [244]int8 |
|
35 raw RawSockaddrDatalink |
|
36 } |
|
37 |
|
38 //sysnb pipe(p *[2]_C_int) (n int, err error) |
|
39 |
|
40 func Pipe(p []int) (err error) { |
|
41 if len(p) != 2 { |
|
42 return EINVAL |
|
43 } |
|
44 var pp [2]_C_int |
|
45 n, err := pipe(&pp) |
|
46 if n != 0 { |
|
47 return err |
|
48 } |
|
49 p[0] = int(pp[0]) |
|
50 p[1] = int(pp[1]) |
|
51 return nil |
|
52 } |
|
53 |
|
54 func (sa *SockaddrInet4) sockaddr() (unsafe.Pointer, _Socklen, error) { |
|
55 if sa.Port < 0 || sa.Port > 0xFFFF { |
|
56 return nil, 0, EINVAL |
|
57 } |
|
58 sa.raw.Family = AF_INET |
|
59 p := (*[2]byte)(unsafe.Pointer(&sa.raw.Port)) |
|
60 p[0] = byte(sa.Port >> 8) |
|
61 p[1] = byte(sa.Port) |
|
62 for i := 0; i < len(sa.Addr); i++ { |
|
63 sa.raw.Addr[i] = sa.Addr[i] |
|
64 } |
|
65 return unsafe.Pointer(&sa.raw), SizeofSockaddrInet4, nil |
|
66 } |
|
67 |
|
68 func (sa *SockaddrInet6) sockaddr() (unsafe.Pointer, _Socklen, error) { |
|
69 if sa.Port < 0 || sa.Port > 0xFFFF { |
|
70 return nil, 0, EINVAL |
|
71 } |
|
72 sa.raw.Family = AF_INET6 |
|
73 p := (*[2]byte)(unsafe.Pointer(&sa.raw.Port)) |
|
74 p[0] = byte(sa.Port >> 8) |
|
75 p[1] = byte(sa.Port) |
|
76 sa.raw.Scope_id = sa.ZoneId |
|
77 for i := 0; i < len(sa.Addr); i++ { |
|
78 sa.raw.Addr[i] = sa.Addr[i] |
|
79 } |
|
80 return unsafe.Pointer(&sa.raw), SizeofSockaddrInet6, nil |
|
81 } |
|
82 |
|
83 func (sa *SockaddrUnix) sockaddr() (unsafe.Pointer, _Socklen, error) { |
|
84 name := sa.Name |
|
85 n := len(name) |
|
86 if n >= len(sa.raw.Path) { |
|
87 return nil, 0, EINVAL |
|
88 } |
|
89 sa.raw.Family = AF_UNIX |
|
90 for i := 0; i < n; i++ { |
|
91 sa.raw.Path[i] = int8(name[i]) |
|
92 } |
|
93 // length is family (uint16), name, NUL. |
|
94 sl := _Socklen(2) |
|
95 if n > 0 { |
|
96 sl += _Socklen(n) + 1 |
|
97 } |
|
98 if sa.raw.Path[0] == '@' { |
|
99 sa.raw.Path[0] = 0 |
|
100 // Don't count trailing NUL for abstract address. |
|
101 sl-- |
|
102 } |
|
103 |
|
104 return unsafe.Pointer(&sa.raw), sl, nil |
|
105 } |
|
106 |
|
107 //sys getsockname(fd int, rsa *RawSockaddrAny, addrlen *_Socklen) (err error) = libsocket.getsockname |
|
108 |
|
109 func Getsockname(fd int) (sa Sockaddr, err error) { |
|
110 var rsa RawSockaddrAny |
|
111 var len _Socklen = SizeofSockaddrAny |
|
112 if err = getsockname(fd, &rsa, &len); err != nil { |
|
113 return |
|
114 } |
|
115 return anyToSockaddr(fd, &rsa) |
|
116 } |
|
117 |
|
118 // GetsockoptString returns the string value of the socket option opt for the |
|
119 // socket associated with fd at the given socket level. |
|
120 func GetsockoptString(fd, level, opt int) (string, error) { |
|
121 buf := make([]byte, 256) |
|
122 vallen := _Socklen(len(buf)) |
|
123 err := getsockopt(fd, level, opt, unsafe.Pointer(&buf[0]), &vallen) |
|
124 if err != nil { |
|
125 return "", err |
|
126 } |
|
127 return string(buf[:vallen-1]), nil |
|
128 } |
|
129 |
|
130 const ImplementsGetwd = true |
|
131 |
|
132 //sys Getcwd(buf []byte) (n int, err error) |
|
133 |
|
134 func Getwd() (wd string, err error) { |
|
135 var buf [PathMax]byte |
|
136 // Getcwd will return an error if it failed for any reason. |
|
137 _, err = Getcwd(buf[0:]) |
|
138 if err != nil { |
|
139 return "", err |
|
140 } |
|
141 n := clen(buf[:]) |
|
142 if n < 1 { |
|
143 return "", EINVAL |
|
144 } |
|
145 return string(buf[:n]), nil |
|
146 } |
|
147 |
|
148 /* |
|
149 * Wrapped |
|
150 */ |
|
151 |
|
152 //sysnb getgroups(ngid int, gid *_Gid_t) (n int, err error) |
|
153 //sysnb setgroups(ngid int, gid *_Gid_t) (err error) |
|
154 |
|
155 func Getgroups() (gids []int, err error) { |
|
156 n, err := getgroups(0, nil) |
|
157 // Check for error and sanity check group count. Newer versions of |
|
158 // Solaris allow up to 1024 (NGROUPS_MAX). |
|
159 if n < 0 || n > 1024 { |
|
160 if err != nil { |
|
161 return nil, err |
|
162 } |
|
163 return nil, EINVAL |
|
164 } else if n == 0 { |
|
165 return nil, nil |
|
166 } |
|
167 |
|
168 a := make([]_Gid_t, n) |
|
169 n, err = getgroups(n, &a[0]) |
|
170 if n == -1 { |
|
171 return nil, err |
|
172 } |
|
173 gids = make([]int, n) |
|
174 for i, v := range a[0:n] { |
|
175 gids[i] = int(v) |
|
176 } |
|
177 return |
|
178 } |
|
179 |
|
180 func Setgroups(gids []int) (err error) { |
|
181 if len(gids) == 0 { |
|
182 return setgroups(0, nil) |
|
183 } |
|
184 |
|
185 a := make([]_Gid_t, len(gids)) |
|
186 for i, v := range gids { |
|
187 a[i] = _Gid_t(v) |
|
188 } |
|
189 return setgroups(len(a), &a[0]) |
|
190 } |
|
191 |
|
192 func ReadDirent(fd int, buf []byte) (n int, err error) { |
|
193 // Final argument is (basep *uintptr) and the syscall doesn't take nil. |
|
194 // TODO(rsc): Can we use a single global basep for all calls? |
|
195 return Getdents(fd, buf, new(uintptr)) |
|
196 } |
|
197 |
|
198 // Wait status is 7 bits at bottom, either 0 (exited), |
|
199 // 0x7F (stopped), or a signal number that caused an exit. |
|
200 // The 0x80 bit is whether there was a core dump. |
|
201 // An extra number (exit code, signal causing a stop) |
|
202 // is in the high bits. |
|
203 |
|
204 type WaitStatus uint32 |
|
205 |
|
206 const ( |
|
207 mask = 0x7F |
|
208 core = 0x80 |
|
209 shift = 8 |
|
210 |
|
211 exited = 0 |
|
212 stopped = 0x7F |
|
213 ) |
|
214 |
|
215 func (w WaitStatus) Exited() bool { return w&mask == exited } |
|
216 |
|
217 func (w WaitStatus) ExitStatus() int { |
|
218 if w&mask != exited { |
|
219 return -1 |
|
220 } |
|
221 return int(w >> shift) |
|
222 } |
|
223 |
|
224 func (w WaitStatus) Signaled() bool { return w&mask != stopped && w&mask != 0 } |
|
225 |
|
226 func (w WaitStatus) Signal() syscall.Signal { |
|
227 sig := syscall.Signal(w & mask) |
|
228 if sig == stopped || sig == 0 { |
|
229 return -1 |
|
230 } |
|
231 return sig |
|
232 } |
|
233 |
|
234 func (w WaitStatus) CoreDump() bool { return w.Signaled() && w&core != 0 } |
|
235 |
|
236 func (w WaitStatus) Stopped() bool { return w&mask == stopped && syscall.Signal(w>>shift) != SIGSTOP } |
|
237 |
|
238 func (w WaitStatus) Continued() bool { return w&mask == stopped && syscall.Signal(w>>shift) == SIGSTOP } |
|
239 |
|
240 func (w WaitStatus) StopSignal() syscall.Signal { |
|
241 if !w.Stopped() { |
|
242 return -1 |
|
243 } |
|
244 return syscall.Signal(w>>shift) & 0xFF |
|
245 } |
|
246 |
|
247 func (w WaitStatus) TrapCause() int { return -1 } |
|
248 |
|
249 //sys wait4(pid int32, statusp *_C_int, options int, rusage *Rusage) (wpid int32, err error) |
|
250 |
|
251 func Wait4(pid int, wstatus *WaitStatus, options int, rusage *Rusage) (int, error) { |
|
252 var status _C_int |
|
253 rpid, err := wait4(int32(pid), &status, options, rusage) |
|
254 wpid := int(rpid) |
|
255 if wpid == -1 { |
|
256 return wpid, err |
|
257 } |
|
258 if wstatus != nil { |
|
259 *wstatus = WaitStatus(status) |
|
260 } |
|
261 return wpid, nil |
|
262 } |
|
263 |
|
264 //sys gethostname(buf []byte) (n int, err error) |
|
265 |
|
266 func Gethostname() (name string, err error) { |
|
267 var buf [MaxHostNameLen]byte |
|
268 n, err := gethostname(buf[:]) |
|
269 if n != 0 { |
|
270 return "", err |
|
271 } |
|
272 n = clen(buf[:]) |
|
273 if n < 1 { |
|
274 return "", EFAULT |
|
275 } |
|
276 return string(buf[:n]), nil |
|
277 } |
|
278 |
|
279 //sys utimes(path string, times *[2]Timeval) (err error) |
|
280 |
|
281 func Utimes(path string, tv []Timeval) (err error) { |
|
282 if tv == nil { |
|
283 return utimes(path, nil) |
|
284 } |
|
285 if len(tv) != 2 { |
|
286 return EINVAL |
|
287 } |
|
288 return utimes(path, (*[2]Timeval)(unsafe.Pointer(&tv[0]))) |
|
289 } |
|
290 |
|
291 //sys utimensat(fd int, path string, times *[2]Timespec, flag int) (err error) |
|
292 |
|
293 func UtimesNano(path string, ts []Timespec) error { |
|
294 if ts == nil { |
|
295 return utimensat(AT_FDCWD, path, nil, 0) |
|
296 } |
|
297 if len(ts) != 2 { |
|
298 return EINVAL |
|
299 } |
|
300 return utimensat(AT_FDCWD, path, (*[2]Timespec)(unsafe.Pointer(&ts[0])), 0) |
|
301 } |
|
302 |
|
303 func UtimesNanoAt(dirfd int, path string, ts []Timespec, flags int) error { |
|
304 if ts == nil { |
|
305 return utimensat(dirfd, path, nil, flags) |
|
306 } |
|
307 if len(ts) != 2 { |
|
308 return EINVAL |
|
309 } |
|
310 return utimensat(dirfd, path, (*[2]Timespec)(unsafe.Pointer(&ts[0])), flags) |
|
311 } |
|
312 |
|
313 //sys fcntl(fd int, cmd int, arg int) (val int, err error) |
|
314 |
|
315 // FcntlInt performs a fcntl syscall on fd with the provided command and argument. |
|
316 func FcntlInt(fd uintptr, cmd, arg int) (int, error) { |
|
317 valptr, _, errno := sysvicall6(uintptr(unsafe.Pointer(&procfcntl)), 3, uintptr(fd), uintptr(cmd), uintptr(arg), 0, 0, 0) |
|
318 var err error |
|
319 if errno != 0 { |
|
320 err = errno |
|
321 } |
|
322 return int(valptr), err |
|
323 } |
|
324 |
|
325 // FcntlFlock performs a fcntl syscall for the F_GETLK, F_SETLK or F_SETLKW command. |
|
326 func FcntlFlock(fd uintptr, cmd int, lk *Flock_t) error { |
|
327 _, _, e1 := sysvicall6(uintptr(unsafe.Pointer(&procfcntl)), 3, uintptr(fd), uintptr(cmd), uintptr(unsafe.Pointer(lk)), 0, 0, 0) |
|
328 if e1 != 0 { |
|
329 return e1 |
|
330 } |
|
331 return nil |
|
332 } |
|
333 |
|
334 //sys futimesat(fildes int, path *byte, times *[2]Timeval) (err error) |
|
335 |
|
336 func Futimesat(dirfd int, path string, tv []Timeval) error { |
|
337 pathp, err := BytePtrFromString(path) |
|
338 if err != nil { |
|
339 return err |
|
340 } |
|
341 if tv == nil { |
|
342 return futimesat(dirfd, pathp, nil) |
|
343 } |
|
344 if len(tv) != 2 { |
|
345 return EINVAL |
|
346 } |
|
347 return futimesat(dirfd, pathp, (*[2]Timeval)(unsafe.Pointer(&tv[0]))) |
|
348 } |
|
349 |
|
350 // Solaris doesn't have an futimes function because it allows NULL to be |
|
351 // specified as the path for futimesat. However, Go doesn't like |
|
352 // NULL-style string interfaces, so this simple wrapper is provided. |
|
353 func Futimes(fd int, tv []Timeval) error { |
|
354 if tv == nil { |
|
355 return futimesat(fd, nil, nil) |
|
356 } |
|
357 if len(tv) != 2 { |
|
358 return EINVAL |
|
359 } |
|
360 return futimesat(fd, nil, (*[2]Timeval)(unsafe.Pointer(&tv[0]))) |
|
361 } |
|
362 |
|
363 func anyToSockaddr(fd int, rsa *RawSockaddrAny) (Sockaddr, error) { |
|
364 switch rsa.Addr.Family { |
|
365 case AF_UNIX: |
|
366 pp := (*RawSockaddrUnix)(unsafe.Pointer(rsa)) |
|
367 sa := new(SockaddrUnix) |
|
368 // Assume path ends at NUL. |
|
369 // This is not technically the Solaris semantics for |
|
370 // abstract Unix domain sockets -- they are supposed |
|
371 // to be uninterpreted fixed-size binary blobs -- but |
|
372 // everyone uses this convention. |
|
373 n := 0 |
|
374 for n < len(pp.Path) && pp.Path[n] != 0 { |
|
375 n++ |
|
376 } |
|
377 bytes := (*[10000]byte)(unsafe.Pointer(&pp.Path[0]))[0:n] |
|
378 sa.Name = string(bytes) |
|
379 return sa, nil |
|
380 |
|
381 case AF_INET: |
|
382 pp := (*RawSockaddrInet4)(unsafe.Pointer(rsa)) |
|
383 sa := new(SockaddrInet4) |
|
384 p := (*[2]byte)(unsafe.Pointer(&pp.Port)) |
|
385 sa.Port = int(p[0])<<8 + int(p[1]) |
|
386 for i := 0; i < len(sa.Addr); i++ { |
|
387 sa.Addr[i] = pp.Addr[i] |
|
388 } |
|
389 return sa, nil |
|
390 |
|
391 case AF_INET6: |
|
392 pp := (*RawSockaddrInet6)(unsafe.Pointer(rsa)) |
|
393 sa := new(SockaddrInet6) |
|
394 p := (*[2]byte)(unsafe.Pointer(&pp.Port)) |
|
395 sa.Port = int(p[0])<<8 + int(p[1]) |
|
396 sa.ZoneId = pp.Scope_id |
|
397 for i := 0; i < len(sa.Addr); i++ { |
|
398 sa.Addr[i] = pp.Addr[i] |
|
399 } |
|
400 return sa, nil |
|
401 } |
|
402 return nil, EAFNOSUPPORT |
|
403 } |
|
404 |
|
405 //sys accept(s int, rsa *RawSockaddrAny, addrlen *_Socklen) (fd int, err error) = libsocket.accept |
|
406 |
|
407 func Accept(fd int) (nfd int, sa Sockaddr, err error) { |
|
408 var rsa RawSockaddrAny |
|
409 var len _Socklen = SizeofSockaddrAny |
|
410 nfd, err = accept(fd, &rsa, &len) |
|
411 if nfd == -1 { |
|
412 return |
|
413 } |
|
414 sa, err = anyToSockaddr(fd, &rsa) |
|
415 if err != nil { |
|
416 Close(nfd) |
|
417 nfd = 0 |
|
418 } |
|
419 return |
|
420 } |
|
421 |
|
422 //sys recvmsg(s int, msg *Msghdr, flags int) (n int, err error) = libsocket.__xnet_recvmsg |
|
423 |
|
424 func Recvmsg(fd int, p, oob []byte, flags int) (n, oobn int, recvflags int, from Sockaddr, err error) { |
|
425 var msg Msghdr |
|
426 var rsa RawSockaddrAny |
|
427 msg.Name = (*byte)(unsafe.Pointer(&rsa)) |
|
428 msg.Namelen = uint32(SizeofSockaddrAny) |
|
429 var iov Iovec |
|
430 if len(p) > 0 { |
|
431 iov.Base = (*int8)(unsafe.Pointer(&p[0])) |
|
432 iov.SetLen(len(p)) |
|
433 } |
|
434 var dummy int8 |
|
435 if len(oob) > 0 { |
|
436 // receive at least one normal byte |
|
437 if len(p) == 0 { |
|
438 iov.Base = &dummy |
|
439 iov.SetLen(1) |
|
440 } |
|
441 msg.Accrightslen = int32(len(oob)) |
|
442 } |
|
443 msg.Iov = &iov |
|
444 msg.Iovlen = 1 |
|
445 if n, err = recvmsg(fd, &msg, flags); n == -1 { |
|
446 return |
|
447 } |
|
448 oobn = int(msg.Accrightslen) |
|
449 // source address is only specified if the socket is unconnected |
|
450 if rsa.Addr.Family != AF_UNSPEC { |
|
451 from, err = anyToSockaddr(fd, &rsa) |
|
452 } |
|
453 return |
|
454 } |
|
455 |
|
456 func Sendmsg(fd int, p, oob []byte, to Sockaddr, flags int) (err error) { |
|
457 _, err = SendmsgN(fd, p, oob, to, flags) |
|
458 return |
|
459 } |
|
460 |
|
461 //sys sendmsg(s int, msg *Msghdr, flags int) (n int, err error) = libsocket.__xnet_sendmsg |
|
462 |
|
463 func SendmsgN(fd int, p, oob []byte, to Sockaddr, flags int) (n int, err error) { |
|
464 var ptr unsafe.Pointer |
|
465 var salen _Socklen |
|
466 if to != nil { |
|
467 ptr, salen, err = to.sockaddr() |
|
468 if err != nil { |
|
469 return 0, err |
|
470 } |
|
471 } |
|
472 var msg Msghdr |
|
473 msg.Name = (*byte)(unsafe.Pointer(ptr)) |
|
474 msg.Namelen = uint32(salen) |
|
475 var iov Iovec |
|
476 if len(p) > 0 { |
|
477 iov.Base = (*int8)(unsafe.Pointer(&p[0])) |
|
478 iov.SetLen(len(p)) |
|
479 } |
|
480 var dummy int8 |
|
481 if len(oob) > 0 { |
|
482 // send at least one normal byte |
|
483 if len(p) == 0 { |
|
484 iov.Base = &dummy |
|
485 iov.SetLen(1) |
|
486 } |
|
487 msg.Accrightslen = int32(len(oob)) |
|
488 } |
|
489 msg.Iov = &iov |
|
490 msg.Iovlen = 1 |
|
491 if n, err = sendmsg(fd, &msg, flags); err != nil { |
|
492 return 0, err |
|
493 } |
|
494 if len(oob) > 0 && len(p) == 0 { |
|
495 n = 0 |
|
496 } |
|
497 return n, nil |
|
498 } |
|
499 |
|
500 //sys acct(path *byte) (err error) |
|
501 |
|
502 func Acct(path string) (err error) { |
|
503 if len(path) == 0 { |
|
504 // Assume caller wants to disable accounting. |
|
505 return acct(nil) |
|
506 } |
|
507 |
|
508 pathp, err := BytePtrFromString(path) |
|
509 if err != nil { |
|
510 return err |
|
511 } |
|
512 return acct(pathp) |
|
513 } |
|
514 |
|
515 //sys __makedev(version int, major uint, minor uint) (val uint64) |
|
516 |
|
517 func Mkdev(major, minor uint32) uint64 { |
|
518 return __makedev(NEWDEV, uint(major), uint(minor)) |
|
519 } |
|
520 |
|
521 //sys __major(version int, dev uint64) (val uint) |
|
522 |
|
523 func Major(dev uint64) uint32 { |
|
524 return uint32(__major(NEWDEV, dev)) |
|
525 } |
|
526 |
|
527 //sys __minor(version int, dev uint64) (val uint) |
|
528 |
|
529 func Minor(dev uint64) uint32 { |
|
530 return uint32(__minor(NEWDEV, dev)) |
|
531 } |
|
532 |
|
533 /* |
|
534 * Expose the ioctl function |
|
535 */ |
|
536 |
|
537 //sys ioctl(fd int, req uint, arg uintptr) (err error) |
|
538 |
|
539 func IoctlSetInt(fd int, req uint, value int) (err error) { |
|
540 return ioctl(fd, req, uintptr(value)) |
|
541 } |
|
542 |
|
543 func ioctlSetWinsize(fd int, req uint, value *Winsize) (err error) { |
|
544 return ioctl(fd, req, uintptr(unsafe.Pointer(value))) |
|
545 } |
|
546 |
|
547 func ioctlSetTermios(fd int, req uint, value *Termios) (err error) { |
|
548 return ioctl(fd, req, uintptr(unsafe.Pointer(value))) |
|
549 } |
|
550 |
|
551 func IoctlSetTermio(fd int, req uint, value *Termio) (err error) { |
|
552 return ioctl(fd, req, uintptr(unsafe.Pointer(value))) |
|
553 } |
|
554 |
|
555 func IoctlGetInt(fd int, req uint) (int, error) { |
|
556 var value int |
|
557 err := ioctl(fd, req, uintptr(unsafe.Pointer(&value))) |
|
558 return value, err |
|
559 } |
|
560 |
|
561 func IoctlGetWinsize(fd int, req uint) (*Winsize, error) { |
|
562 var value Winsize |
|
563 err := ioctl(fd, req, uintptr(unsafe.Pointer(&value))) |
|
564 return &value, err |
|
565 } |
|
566 |
|
567 func IoctlGetTermios(fd int, req uint) (*Termios, error) { |
|
568 var value Termios |
|
569 err := ioctl(fd, req, uintptr(unsafe.Pointer(&value))) |
|
570 return &value, err |
|
571 } |
|
572 |
|
573 func IoctlGetTermio(fd int, req uint) (*Termio, error) { |
|
574 var value Termio |
|
575 err := ioctl(fd, req, uintptr(unsafe.Pointer(&value))) |
|
576 return &value, err |
|
577 } |
|
578 |
|
579 //sys poll(fds *PollFd, nfds int, timeout int) (n int, err error) |
|
580 |
|
581 func Poll(fds []PollFd, timeout int) (n int, err error) { |
|
582 if len(fds) == 0 { |
|
583 return poll(nil, 0, timeout) |
|
584 } |
|
585 return poll(&fds[0], len(fds), timeout) |
|
586 } |
|
587 |
|
588 /* |
|
589 * Exposed directly |
|
590 */ |
|
591 //sys Access(path string, mode uint32) (err error) |
|
592 //sys Adjtime(delta *Timeval, olddelta *Timeval) (err error) |
|
593 //sys Chdir(path string) (err error) |
|
594 //sys Chmod(path string, mode uint32) (err error) |
|
595 //sys Chown(path string, uid int, gid int) (err error) |
|
596 //sys Chroot(path string) (err error) |
|
597 //sys Close(fd int) (err error) |
|
598 //sys Creat(path string, mode uint32) (fd int, err error) |
|
599 //sys Dup(fd int) (nfd int, err error) |
|
600 //sys Dup2(oldfd int, newfd int) (err error) |
|
601 //sys Exit(code int) |
|
602 //sys Faccessat(dirfd int, path string, mode uint32, flags int) (err error) |
|
603 //sys Fchdir(fd int) (err error) |
|
604 //sys Fchmod(fd int, mode uint32) (err error) |
|
605 //sys Fchmodat(dirfd int, path string, mode uint32, flags int) (err error) |
|
606 //sys Fchown(fd int, uid int, gid int) (err error) |
|
607 //sys Fchownat(dirfd int, path string, uid int, gid int, flags int) (err error) |
|
608 //sys Fdatasync(fd int) (err error) |
|
609 //sys Flock(fd int, how int) (err error) |
|
610 //sys Fpathconf(fd int, name int) (val int, err error) |
|
611 //sys Fstat(fd int, stat *Stat_t) (err error) |
|
612 //sys Fstatat(fd int, path string, stat *Stat_t, flags int) (err error) |
|
613 //sys Fstatvfs(fd int, vfsstat *Statvfs_t) (err error) |
|
614 //sys Getdents(fd int, buf []byte, basep *uintptr) (n int, err error) |
|
615 //sysnb Getgid() (gid int) |
|
616 //sysnb Getpid() (pid int) |
|
617 //sysnb Getpgid(pid int) (pgid int, err error) |
|
618 //sysnb Getpgrp() (pgid int, err error) |
|
619 //sys Geteuid() (euid int) |
|
620 //sys Getegid() (egid int) |
|
621 //sys Getppid() (ppid int) |
|
622 //sys Getpriority(which int, who int) (n int, err error) |
|
623 //sysnb Getrlimit(which int, lim *Rlimit) (err error) |
|
624 //sysnb Getrusage(who int, rusage *Rusage) (err error) |
|
625 //sysnb Gettimeofday(tv *Timeval) (err error) |
|
626 //sysnb Getuid() (uid int) |
|
627 //sys Kill(pid int, signum syscall.Signal) (err error) |
|
628 //sys Lchown(path string, uid int, gid int) (err error) |
|
629 //sys Link(path string, link string) (err error) |
|
630 //sys Listen(s int, backlog int) (err error) = libsocket.__xnet_llisten |
|
631 //sys Lstat(path string, stat *Stat_t) (err error) |
|
632 //sys Madvise(b []byte, advice int) (err error) |
|
633 //sys Mkdir(path string, mode uint32) (err error) |
|
634 //sys Mkdirat(dirfd int, path string, mode uint32) (err error) |
|
635 //sys Mkfifo(path string, mode uint32) (err error) |
|
636 //sys Mkfifoat(dirfd int, path string, mode uint32) (err error) |
|
637 //sys Mknod(path string, mode uint32, dev int) (err error) |
|
638 //sys Mknodat(dirfd int, path string, mode uint32, dev int) (err error) |
|
639 //sys Mlock(b []byte) (err error) |
|
640 //sys Mlockall(flags int) (err error) |
|
641 //sys Mprotect(b []byte, prot int) (err error) |
|
642 //sys Msync(b []byte, flags int) (err error) |
|
643 //sys Munlock(b []byte) (err error) |
|
644 //sys Munlockall() (err error) |
|
645 //sys Nanosleep(time *Timespec, leftover *Timespec) (err error) |
|
646 //sys Open(path string, mode int, perm uint32) (fd int, err error) |
|
647 //sys Openat(dirfd int, path string, flags int, mode uint32) (fd int, err error) |
|
648 //sys Pathconf(path string, name int) (val int, err error) |
|
649 //sys Pause() (err error) |
|
650 //sys Pread(fd int, p []byte, offset int64) (n int, err error) |
|
651 //sys Pwrite(fd int, p []byte, offset int64) (n int, err error) |
|
652 //sys read(fd int, p []byte) (n int, err error) |
|
653 //sys Readlink(path string, buf []byte) (n int, err error) |
|
654 //sys Rename(from string, to string) (err error) |
|
655 //sys Renameat(olddirfd int, oldpath string, newdirfd int, newpath string) (err error) |
|
656 //sys Rmdir(path string) (err error) |
|
657 //sys Seek(fd int, offset int64, whence int) (newoffset int64, err error) = lseek |
|
658 //sys Select(n int, r *FdSet, w *FdSet, e *FdSet, timeout *Timeval) (err error) |
|
659 //sysnb Setegid(egid int) (err error) |
|
660 //sysnb Seteuid(euid int) (err error) |
|
661 //sysnb Setgid(gid int) (err error) |
|
662 //sys Sethostname(p []byte) (err error) |
|
663 //sysnb Setpgid(pid int, pgid int) (err error) |
|
664 //sys Setpriority(which int, who int, prio int) (err error) |
|
665 //sysnb Setregid(rgid int, egid int) (err error) |
|
666 //sysnb Setreuid(ruid int, euid int) (err error) |
|
667 //sysnb Setrlimit(which int, lim *Rlimit) (err error) |
|
668 //sysnb Setsid() (pid int, err error) |
|
669 //sysnb Setuid(uid int) (err error) |
|
670 //sys Shutdown(s int, how int) (err error) = libsocket.shutdown |
|
671 //sys Stat(path string, stat *Stat_t) (err error) |
|
672 //sys Statvfs(path string, vfsstat *Statvfs_t) (err error) |
|
673 //sys Symlink(path string, link string) (err error) |
|
674 //sys Sync() (err error) |
|
675 //sysnb Times(tms *Tms) (ticks uintptr, err error) |
|
676 //sys Truncate(path string, length int64) (err error) |
|
677 //sys Fsync(fd int) (err error) |
|
678 //sys Ftruncate(fd int, length int64) (err error) |
|
679 //sys Umask(mask int) (oldmask int) |
|
680 //sysnb Uname(buf *Utsname) (err error) |
|
681 //sys Unmount(target string, flags int) (err error) = libc.umount |
|
682 //sys Unlink(path string) (err error) |
|
683 //sys Unlinkat(dirfd int, path string, flags int) (err error) |
|
684 //sys Ustat(dev int, ubuf *Ustat_t) (err error) |
|
685 //sys Utime(path string, buf *Utimbuf) (err error) |
|
686 //sys bind(s int, addr unsafe.Pointer, addrlen _Socklen) (err error) = libsocket.__xnet_bind |
|
687 //sys connect(s int, addr unsafe.Pointer, addrlen _Socklen) (err error) = libsocket.__xnet_connect |
|
688 //sys mmap(addr uintptr, length uintptr, prot int, flag int, fd int, pos int64) (ret uintptr, err error) |
|
689 //sys munmap(addr uintptr, length uintptr) (err error) |
|
690 //sys sendfile(outfd int, infd int, offset *int64, count int) (written int, err error) = libsendfile.sendfile |
|
691 //sys sendto(s int, buf []byte, flags int, to unsafe.Pointer, addrlen _Socklen) (err error) = libsocket.__xnet_sendto |
|
692 //sys socket(domain int, typ int, proto int) (fd int, err error) = libsocket.__xnet_socket |
|
693 //sysnb socketpair(domain int, typ int, proto int, fd *[2]int32) (err error) = libsocket.__xnet_socketpair |
|
694 //sys write(fd int, p []byte) (n int, err error) |
|
695 //sys getsockopt(s int, level int, name int, val unsafe.Pointer, vallen *_Socklen) (err error) = libsocket.__xnet_getsockopt |
|
696 //sysnb getpeername(fd int, rsa *RawSockaddrAny, addrlen *_Socklen) (err error) = libsocket.getpeername |
|
697 //sys setsockopt(s int, level int, name int, val unsafe.Pointer, vallen uintptr) (err error) = libsocket.setsockopt |
|
698 //sys recvfrom(fd int, p []byte, flags int, from *RawSockaddrAny, fromlen *_Socklen) (n int, err error) = libsocket.recvfrom |
|
699 |
|
700 func readlen(fd int, buf *byte, nbuf int) (n int, err error) { |
|
701 r0, _, e1 := sysvicall6(uintptr(unsafe.Pointer(&procread)), 3, uintptr(fd), uintptr(unsafe.Pointer(buf)), uintptr(nbuf), 0, 0, 0) |
|
702 n = int(r0) |
|
703 if e1 != 0 { |
|
704 err = e1 |
|
705 } |
|
706 return |
|
707 } |
|
708 |
|
709 func writelen(fd int, buf *byte, nbuf int) (n int, err error) { |
|
710 r0, _, e1 := sysvicall6(uintptr(unsafe.Pointer(&procwrite)), 3, uintptr(fd), uintptr(unsafe.Pointer(buf)), uintptr(nbuf), 0, 0, 0) |
|
711 n = int(r0) |
|
712 if e1 != 0 { |
|
713 err = e1 |
|
714 } |
|
715 return |
|
716 } |
|
717 |
|
718 var mapper = &mmapper{ |
|
719 active: make(map[*byte][]byte), |
|
720 mmap: mmap, |
|
721 munmap: munmap, |
|
722 } |
|
723 |
|
724 func Mmap(fd int, offset int64, length int, prot int, flags int) (data []byte, err error) { |
|
725 return mapper.Mmap(fd, offset, length, prot, flags) |
|
726 } |
|
727 |
|
728 func Munmap(b []byte) (err error) { |
|
729 return mapper.Munmap(b) |
|
730 } |