1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ 2 /* 3 * The contents of this file are subject to the Mozilla Public 4 * License Version 1.1 (the "License"); you may not use this file 5 * except in compliance with the License. You may obtain a copy of 6 * the License at http://www.mozilla.org/MPL/ 7 * 8 * Software distributed under the License is distributed on an "AS 9 * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or 10 * implied. See the License for the specific language governing 11 * rights and limitations under the License. 12 * 13 * The Original Code is the Netscape Portable Runtime (NSPR). 14 * 15 * The Initial Developer of the Original Code is Netscape 16 * Communications Corporation. Portions created by Netscape are 17 * Copyright (C) 1998-2000 Netscape Communications Corporation. All 18 * Rights Reserved. 19 * 20 * Contributor(s): 21 * 22 * Alternatively, the contents of this file may be used under the 23 * terms of the GNU General Public License Version 2 or later (the 24 * "GPL"), in which case the provisions of the GPL are applicable 25 * instead of those above. If you wish to allow use of your 26 * version of this file only under the terms of the GPL and not to 27 * allow others to use your version of this file under the MPL, 28 * indicate your decision by deleting the provisions above and 29 * replace them with the notice and other provisions required by 30 * the GPL. If you do not delete the provisions above, a recipient 31 * may use your version of this file under either the MPL or the 32 * GPL. 33 */ 34 35 #ifndef prunixos_h___ 36 #define prunixos_h___ 37 38 /* 39 * If FD_SETSIZE is not defined on the command line, set the default value 40 * before include select.h 41 */ 42 /* 43 * Linux: FD_SETSIZE is defined in /usr/include/sys/select.h and should 44 * not be redefined. 45 */ 46 #if !defined(LINUX) && !defined(DARWIN) && !defined(NEXTSTEP) 47 #ifndef FD_SETSIZE 48 #define FD_SETSIZE 4096 49 #endif 50 #endif 51 52 #include <unistd.h> 53 #include <stddef.h> 54 #include <sys/stat.h> 55 #include <dirent.h> 56 #include <errno.h> 57 58 #include "prio.h" 59 #include "prmem.h" 60 #include "prclist.h" 61 62 /* 63 * For select(), fd_set, and struct timeval. 64 * 65 * In The Single UNIX(R) Specification, Version 2, 66 * the header file for select() is <sys/time.h>. 67 * 68 * fd_set is defined in <sys/types.h>. Usually 69 * <sys/time.h> includes <sys/types.h>, but on some 70 * older systems <sys/time.h> does not include 71 * <sys/types.h>, so we include it explicitly. 72 */ 73 #include <sys/time.h> 74 #include <sys/types.h> 75 #if defined(AIX) /* Only pre-4.2 AIX needs it, but for simplicity... */ 76 #include <sys/select.h> 77 #endif 78 79 #define PR_DIRECTORY_SEPARATOR '/' 80 #define PR_DIRECTORY_SEPARATOR_STR "/" 81 #define PR_PATH_SEPARATOR ':' 82 #define PR_PATH_SEPARATOR_STR ":" 83 #define GCPTR 84 typedef int (*FARPROC)(); 85 86 /* 87 * intervals at which GLOBAL threads wakeup to check for pending interrupt 88 */ 89 #define _PR_INTERRUPT_CHECK_INTERVAL_SECS 5 90 extern PRIntervalTime intr_timeout_ticks; 91 92 /* 93 * The bit flags for the in_flags and out_flags fields 94 * of _PR_UnixPollDesc 95 */ 96 #ifdef _PR_USE_POLL 97 #define _PR_UNIX_POLL_READ POLLIN 98 #define _PR_UNIX_POLL_WRITE POLLOUT 99 #define _PR_UNIX_POLL_EXCEPT POLLPRI 100 #define _PR_UNIX_POLL_ERR POLLERR 101 #define _PR_UNIX_POLL_NVAL POLLNVAL 102 #define _PR_UNIX_POLL_HUP POLLHUP 103 #else /* _PR_USE_POLL */ 104 #define _PR_UNIX_POLL_READ 0x1 105 #define _PR_UNIX_POLL_WRITE 0x2 106 #define _PR_UNIX_POLL_EXCEPT 0x4 107 #define _PR_UNIX_POLL_ERR 0x8 108 #define _PR_UNIX_POLL_NVAL 0x10 109 #define _PR_UNIX_POLL_HUP 0x20 110 #endif /* _PR_USE_POLL */ 111 112 typedef struct _PRUnixPollDesc { 113 PRInt32 osfd; 114 PRInt16 in_flags; 115 PRInt16 out_flags; 116 } _PRUnixPollDesc; 117 118 typedef struct PRPollQueue { 119 PRCList links; /* for linking PRPollQueue's together */ 120 _PRUnixPollDesc *pds; /* array of poll descriptors */ 121 PRUintn npds; /* length of the array */ 122 PRPackedBool on_ioq; /* is this on the async i/o work q? */ 123 PRIntervalTime timeout; /* timeout, in ticks */ 124 struct PRThread *thr; 125 } PRPollQueue; 126 127 #define _PR_POLLQUEUE_PTR(_qp) \ 128 ((PRPollQueue*) ((char*) (_qp) - offsetof(PRPollQueue,links))) 129 130 131 extern PRInt32 _PR_WaitForMultipleFDs( 132 _PRUnixPollDesc *unixpds, 133 PRInt32 pdcnt, 134 PRIntervalTime timeout); 135 extern void _PR_Unblock_IO_Wait(struct PRThread *thr); 136 137 #if defined(_PR_LOCAL_THREADS_ONLY) || defined(_PR_GLOBAL_THREADS_ONLY) 138 #define _MD_CHECK_FOR_EXIT() 139 #endif 140 141 extern fd_set _pr_md_read_set, _pr_md_write_set, _pr_md_exception_set; 142 extern PRInt16 _pr_md_read_cnt[], _pr_md_write_cnt[], _pr_md_exception_cnt[]; 143 extern PRInt32 _pr_md_ioq_max_osfd; 144 extern PRUint32 _pr_md_ioq_timeout; 145 146 struct _MDFileDesc { 147 int osfd; 148 #if defined(LINUX) && defined(_PR_PTHREADS) 149 int tcp_nodelay; /* used by pt_LinuxSendFile */ 150 #endif 151 }; 152 153 struct _MDDir { 154 DIR *d; 155 }; 156 157 struct _PRCPU; 158 extern void _MD_unix_init_running_cpu(struct _PRCPU *cpu); 159 160 /* 161 ** Make a redzone at both ends of the stack segment. Disallow access 162 ** to those pages of memory. It's ok if the mprotect call's don't 163 ** work - it just means that we don't really have a functional 164 ** redzone. 165 */ 166 #include <sys/mman.h> 167 #ifndef PROT_NONE 168 #define PROT_NONE 0x0 169 #endif 170 171 #if defined(DEBUG) && !defined(DARWIN) && !defined(NEXTSTEP) 172 #if !defined(SOLARIS) 173 #include <string.h> /* for memset() */ 174 #define _MD_INIT_STACK(ts,REDZONE) \ 175 PR_BEGIN_MACRO \ 176 (void) mprotect((void*)ts->seg->vaddr, REDZONE, PROT_NONE); \ 177 (void) mprotect((void*) ((char*)ts->seg->vaddr + REDZONE + ts->stackSize),\ 178 REDZONE, PROT_NONE); \ 179 /* \ 180 ** Fill stack memory with something that turns into an illegal \ 181 ** pointer value. This will sometimes find runtime references to \ 182 ** uninitialized pointers. We don't do this for solaris because we \ 183 ** can use purify instead. \ 184 */ \ 185 if (_pr_debugStacks) { \ 186 memset(ts->allocBase + REDZONE, 0xf7, ts->stackSize); \ 187 } \ 188 PR_END_MACRO 189 #else /* !SOLARIS */ 190 #define _MD_INIT_STACK(ts,REDZONE) \ 191 PR_BEGIN_MACRO \ 192 (void) mprotect((void*)ts->seg->vaddr, REDZONE, PROT_NONE); \ 193 (void) mprotect((void*) ((char*)ts->seg->vaddr + REDZONE + ts->stackSize),\ 194 REDZONE, PROT_NONE); \ 195 PR_END_MACRO 196 #endif /* !SOLARIS */ 197 198 /* 199 * _MD_CLEAR_STACK 200 * Allow access to the redzone pages; the access was turned off in 201 * _MD_INIT_STACK. 202 */ 203 #define _MD_CLEAR_STACK(ts) \ 204 PR_BEGIN_MACRO \ 205 (void) mprotect((void*)ts->seg->vaddr, REDZONE, PROT_READ|PROT_WRITE);\ 206 (void) mprotect((void*) ((char*)ts->seg->vaddr + REDZONE + ts->stackSize),\ 207 REDZONE, PROT_READ|PROT_WRITE); \ 208 PR_END_MACRO 209 210 #else /* DEBUG */ 211 212 #define _MD_INIT_STACK(ts,REDZONE) 213 #define _MD_CLEAR_STACK(ts) 214 215 #endif /* DEBUG */ 216 217 #if !defined(SOLARIS) 218 219 #define PR_SET_INTSOFF(newval) 220 221 #endif 222 223 /************************************************************************/ 224 225 extern void _PR_UnixInit(void); 226 227 /************************************************************************/ 228 229 struct _MDProcess { 230 pid_t pid; 231 }; 232 233 struct PRProcess; 234 struct PRProcessAttr; 235 236 /* Create a new process (fork() + exec()) */ 237 #define _MD_CREATE_PROCESS _MD_CreateUnixProcess 238 extern struct PRProcess * _MD_CreateUnixProcess( 239 const char *path, 240 char *const *argv, 241 char *const *envp, 242 const struct PRProcessAttr *attr 243 ); 244 245 #define _MD_DETACH_PROCESS _MD_DetachUnixProcess 246 extern PRStatus _MD_DetachUnixProcess(struct PRProcess *process); 247 248 /* Wait for a child process to terminate */ 249 #define _MD_WAIT_PROCESS _MD_WaitUnixProcess 250 extern PRStatus _MD_WaitUnixProcess(struct PRProcess *process, 251 PRInt32 *exitCode); 252 253 #define _MD_KILL_PROCESS _MD_KillUnixProcess 254 extern PRStatus _MD_KillUnixProcess(struct PRProcess *process); 255 256 /************************************************************************/ 257 258 extern void _MD_EnableClockInterrupts(void); 259 extern void _MD_DisableClockInterrupts(void); 260 261 #define _MD_START_INTERRUPTS _MD_StartInterrupts 262 #define _MD_STOP_INTERRUPTS _MD_StopInterrupts 263 #define _MD_DISABLE_CLOCK_INTERRUPTS _MD_DisableClockInterrupts 264 #define _MD_ENABLE_CLOCK_INTERRUPTS _MD_EnableClockInterrupts 265 #define _MD_BLOCK_CLOCK_INTERRUPTS _MD_BlockClockInterrupts 266 #define _MD_UNBLOCK_CLOCK_INTERRUPTS _MD_UnblockClockInterrupts 267 268 /************************************************************************/ 269 270 extern void _MD_InitCPUS(void); 271 #define _MD_INIT_CPUS _MD_InitCPUS 272 273 extern void _MD_Wakeup_CPUs(void); 274 #define _MD_WAKEUP_CPUS _MD_Wakeup_CPUs 275 276 #define _MD_PAUSE_CPU _MD_PauseCPU 277 278 #if defined(_PR_LOCAL_THREADS_ONLY) || defined(_PR_GLOBAL_THREADS_ONLY) 279 #define _MD_CLEANUP_BEFORE_EXIT() 280 #endif 281 282 #ifndef IRIX 283 #define _MD_EXIT(status) _exit(status) 284 #endif 285 286 /************************************************************************/ 287 288 #define _MD_GET_ENV getenv 289 #define _MD_PUT_ENV putenv 290 291 /************************************************************************/ 292 293 #define _MD_INIT_FILEDESC(fd) 294 295 extern void _MD_MakeNonblock(PRFileDesc *fd); 296 #define _MD_MAKE_NONBLOCK _MD_MakeNonblock 297 298 /************************************************************************/ 299 300 #if !defined(_PR_PTHREADS) 301 302 extern void _MD_InitSegs(void); 303 extern PRStatus _MD_AllocSegment(PRSegment *seg, PRUint32 size, 304 void *vaddr); 305 extern void _MD_FreeSegment(PRSegment *seg); 306 307 #define _MD_INIT_SEGS _MD_InitSegs 308 #define _MD_ALLOC_SEGMENT _MD_AllocSegment 309 #define _MD_FREE_SEGMENT _MD_FreeSegment 310 311 #endif /* !defined(_PR_PTHREADS) */ 312 313 /************************************************************************/ 314 315 #if !defined(HPUX_LW_TIMER) 316 #define _MD_INTERVAL_INIT() 317 #endif 318 #define _MD_INTERVAL_PER_MILLISEC() (_PR_MD_INTERVAL_PER_SEC() / 1000) 319 #define _MD_INTERVAL_PER_MICROSEC() (_PR_MD_INTERVAL_PER_SEC() / 1000000) 320 321 /************************************************************************/ 322 323 #define _MD_ERRNO() (errno) 324 #define _MD_GET_SOCKET_ERROR() (errno) 325 326 /************************************************************************/ 327 328 extern PRInt32 _MD_AvailableSocket(PRInt32 osfd); 329 330 extern void _MD_StartInterrupts(void); 331 extern void _MD_StopInterrupts(void); 332 extern void _MD_DisableClockInterrupts(void); 333 extern void _MD_BlockClockInterrupts(void); 334 extern void _MD_UnblockClockInterrupts(void); 335 extern void _MD_PauseCPU(PRIntervalTime timeout); 336 337 extern PRStatus _MD_open_dir(struct _MDDir *, const char *); 338 extern PRInt32 _MD_close_dir(struct _MDDir *); 339 extern char * _MD_read_dir(struct _MDDir *, PRIntn); 340 extern PRInt32 _MD_open(const char *name, PRIntn osflags, PRIntn mode); 341 extern PRInt32 _MD_delete(const char *name); 342 extern PRInt32 _MD_getfileinfo(const char *fn, PRFileInfo *info); 343 extern PRInt32 _MD_getfileinfo64(const char *fn, PRFileInfo64 *info); 344 extern PRInt32 _MD_getopenfileinfo(const PRFileDesc *fd, PRFileInfo *info); 345 extern PRInt32 _MD_getopenfileinfo64(const PRFileDesc *fd, PRFileInfo64 *info); 346 extern PRInt32 _MD_rename(const char *from, const char *to); 347 extern PRInt32 _MD_access(const char *name, PRAccessHow how); 348 extern PRInt32 _MD_mkdir(const char *name, PRIntn mode); 349 extern PRInt32 _MD_rmdir(const char *name); 350 extern PRInt32 _MD_accept_read(PRInt32 sock, PRInt32 *newSock, 351 PRNetAddr **raddr, void *buf, PRInt32 amount); 352 extern PRInt32 _PR_UnixSendFile(PRFileDesc *sd, PRSendFileData *sfd, 353 PRTransmitFileFlags flags, PRIntervalTime timeout); 354 355 extern PRStatus _MD_LockFile(PRInt32 osfd); 356 extern PRStatus _MD_TLockFile(PRInt32 osfd); 357 extern PRStatus _MD_UnlockFile(PRInt32 osfd); 358 359 #define _MD_OPEN_DIR(dir, name) _MD_open_dir(dir, name) 360 #define _MD_CLOSE_DIR(dir) _MD_close_dir(dir) 361 #define _MD_READ_DIR(dir, flags) _MD_read_dir(dir, flags) 362 #define _MD_OPEN(name, osflags, mode) _MD_open(name, osflags, mode) 363 #define _MD_OPEN_FILE(name, osflags, mode) _MD_open(name, osflags, mode) 364 extern PRInt32 _MD_read(PRFileDesc *fd, void *buf, PRInt32 amount); 365 #define _MD_READ(fd,buf,amount) _MD_read(fd,buf,amount) 366 extern PRInt32 _MD_write(PRFileDesc *fd, const void *buf, PRInt32 amount); 367 #define _MD_WRITE(fd,buf,amount) _MD_write(fd,buf,amount) 368 #define _MD_DELETE(name) _MD_delete(name) 369 #define _MD_GETFILEINFO(fn, info) _MD_getfileinfo(fn, info) 370 #define _MD_GETFILEINFO64(fn, info) _MD_getfileinfo64(fn, info) 371 #define _MD_GETOPENFILEINFO(fd, info) _MD_getopenfileinfo(fd, info) 372 #define _MD_GETOPENFILEINFO64(fd, info) _MD_getopenfileinfo64(fd, info) 373 #define _MD_RENAME(from, to) _MD_rename(from, to) 374 #define _MD_ACCESS(name, how) _MD_access(name, how) 375 #define _MD_MKDIR(name, mode) _MD_mkdir(name, mode) 376 #define _MD_MAKE_DIR(name, mode) _MD_mkdir(name, mode) 377 #define _MD_RMDIR(name) _MD_rmdir(name) 378 #define _MD_ACCEPT_READ(sock, newSock, raddr, buf, amount) _MD_accept_read(sock, newSock, raddr, buf, amount) 379 380 #define _MD_LOCKFILE _MD_LockFile 381 #define _MD_TLOCKFILE _MD_TLockFile 382 #define _MD_UNLOCKFILE _MD_UnlockFile 383 384 385 extern PRInt32 _MD_socket(int af, int type, int flags); 386 #define _MD_SOCKET _MD_socket 387 extern PRInt32 _MD_connect(PRFileDesc *fd, const PRNetAddr *addr, 388 PRUint32 addrlen, PRIntervalTime timeout); 389 #define _MD_CONNECT _MD_connect 390 extern PRInt32 _MD_accept(PRFileDesc *fd, PRNetAddr *addr, PRUint32 *addrlen, 391 PRIntervalTime timeout); 392 #define _MD_ACCEPT _MD_accept 393 extern PRInt32 _MD_bind(PRFileDesc *fd, const PRNetAddr *addr, PRUint32 addrlen); 394 #define _MD_BIND _MD_bind 395 extern PRInt32 _MD_listen(PRFileDesc *fd, PRIntn backlog); 396 #define _MD_LISTEN _MD_listen 397 extern PRInt32 _MD_shutdown(PRFileDesc *fd, PRIntn how); 398 #define _MD_SHUTDOWN _MD_shutdown 399 400 extern PRInt32 _MD_recv(PRFileDesc *fd, void *buf, PRInt32 amount, 401 PRIntn flags, PRIntervalTime timeout); 402 #define _MD_RECV _MD_recv 403 extern PRInt32 _MD_send(PRFileDesc *fd, const void *buf, PRInt32 amount, 404 PRIntn flags, PRIntervalTime timeout); 405 #define _MD_SEND _MD_send 406 extern PRInt32 _MD_recvfrom(PRFileDesc *fd, void *buf, PRInt32 amount, 407 PRIntn flags, PRNetAddr *addr, PRUint32 *addrlen, 408 PRIntervalTime timeout); 409 #define _MD_RECVFROM _MD_recvfrom 410 extern PRInt32 _MD_sendto(PRFileDesc *fd, const void *buf, PRInt32 amount, 411 PRIntn flags, const PRNetAddr *addr, PRUint32 addrlen, 412 PRIntervalTime timeout); 413 #define _MD_SENDTO _MD_sendto 414 extern PRInt32 _MD_writev(PRFileDesc *fd, const struct PRIOVec *iov, 415 PRInt32 iov_size, PRIntervalTime timeout); 416 #define _MD_WRITEV _MD_writev 417 418 extern PRInt32 _MD_socketavailable(PRFileDesc *fd); 419 #define _MD_SOCKETAVAILABLE _MD_socketavailable 420 extern PRInt64 _MD_socketavailable64(PRFileDesc *fd); 421 #define _MD_SOCKETAVAILABLE64 _MD_socketavailable64 422 423 #define _MD_PIPEAVAILABLE _MD_socketavailable 424 425 extern PRInt32 _MD_pr_poll(PRPollDesc *pds, PRIntn npds, 426 PRIntervalTime timeout); 427 #define _MD_PR_POLL _MD_pr_poll 428 429 extern PRInt32 _MD_close(PRInt32 osfd); 430 #define _MD_CLOSE_FILE _MD_close 431 extern PRInt32 _MD_lseek(PRFileDesc*, PRInt32, PRSeekWhence); 432 #define _MD_LSEEK _MD_lseek 433 extern PRInt64 _MD_lseek64(PRFileDesc*, PRInt64, PRSeekWhence); 434 #define _MD_LSEEK64 _MD_lseek64 435 extern PRInt32 _MD_fsync(PRFileDesc *fd); 436 #define _MD_FSYNC _MD_fsync 437 438 extern PRInt32 _MD_socketpair(int af, int type, int flags, PRInt32 *osfd); 439 #define _MD_SOCKETPAIR _MD_socketpair 440 441 #define _MD_CLOSE_SOCKET _MD_close 442 443 #ifndef NO_NSPR_10_SUPPORT 444 #define _MD_STAT stat 445 #endif 446 447 extern PRStatus _MD_getpeername(PRFileDesc *fd, PRNetAddr *addr, 448 PRUint32 *addrlen); 449 #define _MD_GETPEERNAME _MD_getpeername 450 extern PRStatus _MD_getsockname(PRFileDesc *fd, PRNetAddr *addr, 451 PRUint32 *addrlen); 452 #define _MD_GETSOCKNAME _MD_getsockname 453 454 extern PRStatus _MD_getsockopt(PRFileDesc *fd, PRInt32 level, 455 PRInt32 optname, char* optval, PRInt32* optlen); 456 #define _MD_GETSOCKOPT _MD_getsockopt 457 extern PRStatus _MD_setsockopt(PRFileDesc *fd, PRInt32 level, 458 PRInt32 optname, const char* optval, PRInt32 optlen); 459 #define _MD_SETSOCKOPT _MD_setsockopt 460 461 extern PRStatus _MD_set_fd_inheritable(PRFileDesc *fd, PRBool inheritable); 462 #define _MD_SET_FD_INHERITABLE _MD_set_fd_inheritable 463 464 extern void _MD_init_fd_inheritable(PRFileDesc *fd, PRBool imported); 465 #define _MD_INIT_FD_INHERITABLE _MD_init_fd_inheritable 466 467 extern void _MD_query_fd_inheritable(PRFileDesc *fd); 468 #define _MD_QUERY_FD_INHERITABLE _MD_query_fd_inheritable 469 470 extern PRStatus _MD_gethostname(char *name, PRUint32 namelen); 471 #define _MD_GETHOSTNAME _MD_gethostname 472 473 extern PRStatus _MD_getsysinfo(PRSysInfo cmd, char *name, PRUint32 namelen); 474 #define _MD_GETSYSINFO _MD_getsysinfo 475 476 extern int _MD_unix_get_nonblocking_connect_error(int osfd); 477 478 /* Memory-mapped files */ 479 480 struct _MDFileMap { 481 PRIntn prot; 482 PRIntn flags; 483 PRBool isAnonFM; /* when true, PR_CloseFileMap() must close the related fd */ 484 }; 485 486 extern PRStatus _MD_CreateFileMap(struct PRFileMap *fmap, PRInt64 size); 487 #define _MD_CREATE_FILE_MAP _MD_CreateFileMap 488 489 #define _MD_GET_MEM_MAP_ALIGNMENT() PR_GetPageSize() 490 491 extern void * _MD_MemMap(struct PRFileMap *fmap, PRInt64 offset, 492 PRUint32 len); 493 #define _MD_MEM_MAP _MD_MemMap 494 495 extern PRStatus _MD_MemUnmap(void *addr, PRUint32 size); 496 #define _MD_MEM_UNMAP _MD_MemUnmap 497 498 extern PRStatus _MD_CloseFileMap(struct PRFileMap *fmap); 499 #define _MD_CLOSE_FILE_MAP _MD_CloseFileMap 500 501 /* 502 * The standard (XPG4) gettimeofday() (from BSD) takes two arguments. 503 * On some SVR4 derivatives, gettimeofday() takes only one argument. 504 * The GETTIMEOFDAY macro is intended to hide this difference. 505 */ 506 #ifdef HAVE_SVID_GETTOD 507 #define GETTIMEOFDAY(tp) gettimeofday(tp) 508 #else 509 #define GETTIMEOFDAY(tp) gettimeofday((tp), NULL) 510 #endif 511 512 #if defined(_PR_PTHREADS) && !defined(_PR_POLL_AVAILABLE) 513 #define _PR_NEED_FAKE_POLL 514 #endif 515 516 #if defined(_PR_NEED_FAKE_POLL) 517 518 /* 519 * Some platforms don't have poll(), but our pthreads code calls poll(). 520 * As a temporary measure, I implemented a fake poll() using select(). 521 * Here are the struct and macro definitions copied from sys/poll.h 522 * on Solaris 2.5. 523 */ 524 525 struct pollfd { 526 int fd; 527 short events; 528 short revents; 529 }; 530 531 /* poll events */ 532 533 #define POLLIN 0x0001 /* fd is readable */ 534 #define POLLPRI 0x0002 /* high priority info at fd */ 535 #define POLLOUT 0x0004 /* fd is writeable (won't block) */ 536 #define POLLRDNORM 0x0040 /* normal data is readable */ 537 #define POLLWRNORM POLLOUT 538 #define POLLRDBAND 0x0080 /* out-of-band data is readable */ 539 #define POLLWRBAND 0x0100 /* out-of-band data is writeable */ 540 541 #define POLLNORM POLLRDNORM 542 543 #define POLLERR 0x0008 /* fd has error condition */ 544 #define POLLHUP 0x0010 /* fd has been hung up on */ 545 #define POLLNVAL 0x0020 /* invalid pollfd entry */ 546 547 extern int poll(struct pollfd *, unsigned long, int); 548 549 #endif /* _PR_NEED_FAKE_POLL */ 550 551 /* 552 ** A vector of the UNIX I/O calls we use. These are here to smooth over 553 ** the rough edges needed for large files. All of NSPR's implmentaions 554 ** go through this vector using syntax of the form 555 ** result = _md_iovector.xxx64(args); 556 */ 557 558 #if defined(SOLARIS2_5) 559 /* 560 ** Special case: Solaris 2.5.1 561 ** Solaris starts to have 64-bit file I/O in 2.6. We build on Solaris 562 ** 2.5.1 so that we can use the same binaries on both Solaris 2.5.1 and 563 ** 2.6. At run time, we detect whether 64-bit file I/O is available by 564 ** looking up the 64-bit file function symbols in libc. At build time, 565 ** we need to define the 64-bit file I/O datatypes that are compatible 566 ** with their definitions on Solaris 2.6. 567 */ 568 typedef PRInt64 off64_t; 569 typedef PRUint64 ino64_t; 570 typedef PRInt64 blkcnt64_t; 571 struct stat64 { 572 dev_t st_dev; 573 long st_pad1[3]; 574 ino64_t st_ino; 575 mode_t st_mode; 576 nlink_t st_nlink; 577 uid_t st_uid; 578 gid_t st_gid; 579 dev_t st_rdev; 580 long t_pad2[2]; 581 off64_t st_size; 582 timestruc_t st_atim; 583 timestruc_t st_mtim; 584 timestruc_t st_ctim; 585 long st_blksize; 586 blkcnt64_t st_blocks; 587 char st_fstype[_ST_FSTYPSZ]; 588 long st_pad4[8]; 589 }; 590 typedef struct stat64 _MDStat64; 591 typedef off64_t _MDOff64_t; 592 593 #elif defined(_PR_HAVE_OFF64_T) 594 typedef struct stat64 _MDStat64; 595 typedef off64_t _MDOff64_t; 596 #elif defined(_PR_HAVE_LARGE_OFF_T) 597 typedef struct stat _MDStat64; 598 typedef off_t _MDOff64_t; 599 #elif defined(_PR_NO_LARGE_FILES) 600 typedef struct stat _MDStat64; 601 typedef PRInt64 _MDOff64_t; 602 #else 603 #error "I don't know yet" 604 #endif 605 606 typedef PRIntn (*_MD_Fstat64)(PRIntn osfd, _MDStat64 *buf); 607 typedef PRIntn (*_MD_Open64)(const char *path, int oflag, ...); 608 #if defined(VMS) 609 typedef PRIntn (*_MD_Stat64)(const char *path, _MDStat64 *buf, ...); 610 #else 611 typedef PRIntn (*_MD_Stat64)(const char *path, _MDStat64 *buf); 612 #endif 613 typedef _MDOff64_t (*_MD_Lseek64)(PRIntn osfd, _MDOff64_t, PRIntn whence); 614 typedef void* (*_MD_Mmap64)( 615 void *addr, PRSize len, PRIntn prot, PRIntn flags, 616 PRIntn fildes, _MDOff64_t offset); 617 struct _MD_IOVector 618 { 619 _MD_Open64 _open64; 620 _MD_Mmap64 _mmap64; 621 _MD_Stat64 _stat64; 622 _MD_Fstat64 _fstat64; 623 _MD_Lseek64 _lseek64; 624 }; 625 extern struct _MD_IOVector _md_iovector; 626 627 #endif /* prunixos_h___ */ 628
