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comparison src/sysdep.c @ 157:6b37e6ddd302 r20-3b5

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Import from CVS: tag r20-3b5
author cvs
date Mon, 13 Aug 2007 09:40:41 +0200
parents 43dd3413c7c7
children 0132846995bd
comparison
equal deleted inserted replaced
156:60baf0b43294 157:6b37e6ddd302
371 begin to block. Otherwise we may end up blocking for a 371 begin to block. Otherwise we may end up blocking for a
372 signal that has already arrived and isn't coming again. 372 signal that has already arrived and isn't coming again.
373 Can you say "race condition"? 373 Can you say "race condition"?
374 374
375 I assume that the system calls sigpause() or sigsuspend() 375 I assume that the system calls sigpause() or sigsuspend()
376 provide this atomicness. If you're getting hangs in 376 to provide this atomicness. If you're getting hangs in
377 sigpause()/sigsuspend(), then your OS doesn't 377 sigpause()/sigsuspend(), then your OS doesn't
378 implement this properly (this applies under hpux9, 378 implement this properly (this applies under hpux9,
379 for example). Try defining BROKEN_WAIT_FOR_SIGNAL. */ 379 for example). Try defining BROKEN_WAIT_FOR_SIGNAL. */
380 EMACS_WAIT_FOR_SIGNAL (SIGCHLD); 380 EMACS_WAIT_FOR_SIGNAL (SIGCHLD);
381 continue; 381 continue;
1322 /* Getting and setting emacs_tty structures */ 1322 /* Getting and setting emacs_tty structures */
1323 /* ------------------------------------------------------ */ 1323 /* ------------------------------------------------------ */
1324 1324
1325 /* It's wrong to encase these into #ifdef HAVE_TTY because we need 1325 /* It's wrong to encase these into #ifdef HAVE_TTY because we need
1326 them for child TTY processes. */ 1326 them for child TTY processes. */
1327 /* However, this does break NT support while we don't do child TTY processes */
1328 #ifndef WINDOWSNT
1327 1329
1328 /* Set *TC to the parameters associated with the terminal FD. 1330 /* Set *TC to the parameters associated with the terminal FD.
1329 Return zero if all's well, or -1 if we ran into an error we 1331 Return zero if all's well, or -1 if we ran into an error we
1330 couldn't deal with. */ 1332 couldn't deal with. */
1331 int 1333 int
1462 1464
1463 /* We have survived the tempest. */ 1465 /* We have survived the tempest. */
1464 return 0; 1466 return 0;
1465 } 1467 }
1466 1468
1469 #endif /* WINDOWSNT */
1467 1470
1468 /* ------------------------------------------------------ */ 1471 /* ------------------------------------------------------ */
1469 /* Initializing a device */ 1472 /* Initializing a device */
1470 /* ------------------------------------------------------ */ 1473 /* ------------------------------------------------------ */
1471 1474