Mercurial > hg > xemacs-beta

comparison src/event-unixoid.c @ 185:3d6bfa290dbd r20-3b19

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Import from CVS: tag r20-3b19
author cvs
date Mon, 13 Aug 2007 09:55:28 +0200
parents 25f70ba0133c
children 727739f917cb
comparison
equal deleted inserted replaced
184:bcd2674570bf 185:3d6bfa290dbd
250 { 250 {
251 perror ("XEmacs: can't open pipe"); 251 perror ("XEmacs: can't open pipe");
252 exit (-1); 252 exit (-1);
253 } 253 }
254 signal_event_pipe_initialized = 1; 254 signal_event_pipe_initialized = 1;
255 255
256 /* Set it non-blocking so we can drain its output. */ 256 /* Set it non-blocking so we can drain its output. */
257 set_descriptor_non_blocking (signal_event_pipe[0]); 257 set_descriptor_non_blocking (signal_event_pipe[0]);
258 258
259 /* Also set the write descriptor non-blocking so we don't 259 /* Also set the write descriptor non-blocking so we don't
260 hang in case a long time passes between times when 260 hang in case a long time passes between times when
261 we drain the pipe. */ 261 we drain the pipe. */
262 set_descriptor_non_blocking (signal_event_pipe[1]); 262 set_descriptor_non_blocking (signal_event_pipe[1]);
263 263
264 /* WARNING: In order for the signal-event pipe to work correctly 264 /* WARNING: In order for the signal-event pipe to work correctly
265 and not cause lockups, the following need to be followed: 265 and not cause lockups, the following need to be followed:
266 266
267 1) event_pending_p() must ignore input on the signal-event pipe. 267 1) event_pending_p() must ignore input on the signal-event pipe.
268 2) As soon as next_event() notices input on the signal-event 268 2) As soon as next_event() notices input on the signal-event
269 pipe, it must drain it. */ 269 pipe, it must drain it. */
270 FD_ZERO (&input_wait_mask); 270 FD_ZERO (&input_wait_mask);
271 FD_ZERO (&non_fake_input_wait_mask); 271 FD_ZERO (&non_fake_input_wait_mask);
272 FD_ZERO (&process_only_mask); 272 FD_ZERO (&process_only_mask);
273 FD_ZERO (&tty_only_mask); 273 FD_ZERO (&tty_only_mask);
274 274
275 FD_SET (signal_event_pipe[0], &input_wait_mask); 275 FD_SET (signal_event_pipe[0], &input_wait_mask);
276 } 276 }