| File: | NextEvent.c |
| Location: | line 1424, column 18 |
| Description: | Access to field 'count' results in a dereference of a null pointer (loaded from variable 'app') |
| 1 | /*********************************************************** |
| 2 | Copyright (c) 1993, Oracle and/or its affiliates. All rights reserved. |
| 3 | |
| 4 | Permission is hereby granted, free of charge, to any person obtaining a |
| 5 | copy of this software and associated documentation files (the "Software"), |
| 6 | to deal in the Software without restriction, including without limitation |
| 7 | the rights to use, copy, modify, merge, publish, distribute, sublicense, |
| 8 | and/or sell copies of the Software, and to permit persons to whom the |
| 9 | Software is furnished to do so, subject to the following conditions: |
| 10 | |
| 11 | The above copyright notice and this permission notice (including the next |
| 12 | paragraph) shall be included in all copies or substantial portions of the |
| 13 | Software. |
| 14 | |
| 15 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 16 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 17 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| 18 | THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| 19 | LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING |
| 20 | FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER |
| 21 | DEALINGS IN THE SOFTWARE. |
| 22 | |
| 23 | Copyright 1987, 1988 by Digital Equipment Corporation, Maynard, Massachusetts. |
| 24 | |
| 25 | All Rights Reserved |
| 26 | |
| 27 | Permission to use, copy, modify, and distribute this software and its |
| 28 | documentation for any purpose and without fee is hereby granted, |
| 29 | provided that the above copyright notice appear in all copies and that |
| 30 | both that copyright notice and this permission notice appear in |
| 31 | supporting documentation, and that the name of Digital not be |
| 32 | used in advertising or publicity pertaining to distribution of the |
| 33 | software without specific, written prior permission. |
| 34 | |
| 35 | DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING |
| 36 | ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL |
| 37 | DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR |
| 38 | ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, |
| 39 | WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, |
| 40 | ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS |
| 41 | SOFTWARE. |
| 42 | |
| 43 | ******************************************************************/ |
| 44 | |
| 45 | /* |
| 46 | |
| 47 | Copyright 1987, 1988, 1994, 1998, 2001 The Open Group |
| 48 | |
| 49 | Permission to use, copy, modify, distribute, and sell this software and its |
| 50 | documentation for any purpose is hereby granted without fee, provided that |
| 51 | the above copyright notice appear in all copies and that both that |
| 52 | copyright notice and this permission notice appear in supporting |
| 53 | documentation. |
| 54 | |
| 55 | The above copyright notice and this permission notice shall be included in |
| 56 | all copies or substantial portions of the Software. |
| 57 | |
| 58 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 59 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 60 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
| 61 | OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN |
| 62 | AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN |
| 63 | CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
| 64 | |
| 65 | Except as contained in this notice, the name of The Open Group shall not be |
| 66 | used in advertising or otherwise to promote the sale, use or other dealings |
| 67 | in this Software without prior written authorization from The Open Group. |
| 68 | |
| 69 | */ |
| 70 | |
| 71 | #ifdef HAVE_CONFIG_H1 |
| 72 | #include <config.h> |
| 73 | #endif |
| 74 | #include "IntrinsicI.h" |
| 75 | #include <stdio.h> |
| 76 | #include <errno(*__errno_location ()).h> |
| 77 | |
| 78 | #ifdef __UNIXOS2__ |
| 79 | #include <sys/time.h> |
| 80 | #endif |
| 81 | |
| 82 | static TimerEventRec* freeTimerRecs; |
| 83 | static WorkProcRec* freeWorkRecs; |
| 84 | static SignalEventRec* freeSignalRecs; |
| 85 | |
| 86 | /* Some systems running NTP daemons are known to return strange usec |
| 87 | * values from gettimeofday. |
| 88 | */ |
| 89 | |
| 90 | #ifndef NEEDS_NTPD_FIXUP0 |
| 91 | # if defined(sun) || defined(MOTOROLA) || (defined(__osf__) && defined(__alpha)) |
| 92 | # define NEEDS_NTPD_FIXUP0 1 |
| 93 | # else |
| 94 | # define NEEDS_NTPD_FIXUP0 0 |
| 95 | # endif |
| 96 | #endif |
| 97 | |
| 98 | #if NEEDS_NTPD_FIXUP0 |
| 99 | #define FIXUP_TIMEVAL(t) { \ |
| 100 | while ((t).tv_usec >= 1000000) { \ |
| 101 | (t).tv_usec -= 1000000; \ |
| 102 | (t).tv_sec++; \ |
| 103 | } \ |
| 104 | while ((t).tv_usec < 0) { \ |
| 105 | if ((t).tv_sec > 0) { \ |
| 106 | (t).tv_usec += 1000000; \ |
| 107 | (t).tv_sec--; \ |
| 108 | } else { \ |
| 109 | (t).tv_usec = 0; \ |
| 110 | break; \ |
| 111 | } \ |
| 112 | }} |
| 113 | #else |
| 114 | #define FIXUP_TIMEVAL(t) |
| 115 | #endif /*NEEDS_NTPD_FIXUP*/ |
| 116 | |
| 117 | /* |
| 118 | * Private routines |
| 119 | */ |
| 120 | #define ADD_TIME(dest, src1, src2){ if(((dest).tv_usec = (src1).tv_usec + (src2).tv_usec) >= 1000000) { (dest).tv_usec -= 1000000; (dest).tv_sec = (src1) .tv_sec + (src2).tv_sec + 1 ; } else { (dest).tv_sec = (src1) .tv_sec + (src2).tv_sec ; if(((dest).tv_sec >= 1) && (((dest).tv_usec <0))) { (dest).tv_sec --;(dest).tv_usec += 1000000; } } } { \ |
| 121 | if(((dest).tv_usec = (src1).tv_usec + (src2).tv_usec) >= 1000000) {\ |
| 122 | (dest).tv_usec -= 1000000;\ |
| 123 | (dest).tv_sec = (src1).tv_sec + (src2).tv_sec + 1 ; \ |
| 124 | } else { (dest).tv_sec = (src1).tv_sec + (src2).tv_sec ; \ |
| 125 | if(((dest).tv_sec >= 1) && (((dest).tv_usec <0))) { \ |
| 126 | (dest).tv_sec --;(dest).tv_usec += 1000000; } } } |
| 127 | |
| 128 | |
| 129 | #define TIMEDELTA(dest, src1, src2){ if(((dest).tv_usec = (src1).tv_usec - (src2).tv_usec) < 0 ) { (dest).tv_usec += 1000000; (dest).tv_sec = (src1).tv_sec - (src2).tv_sec - 1; } else (dest).tv_sec = (src1).tv_sec - (src2 ).tv_sec; } { \ |
| 130 | if(((dest).tv_usec = (src1).tv_usec - (src2).tv_usec) < 0) {\ |
| 131 | (dest).tv_usec += 1000000;\ |
| 132 | (dest).tv_sec = (src1).tv_sec - (src2).tv_sec - 1;\ |
| 133 | } else (dest).tv_sec = (src1).tv_sec - (src2).tv_sec; } |
| 134 | |
| 135 | #define IS_AFTER(t1, t2)(((t2).tv_sec > (t1).tv_sec) || (((t2).tv_sec == (t1).tv_sec )&& ((t2).tv_usec > (t1).tv_usec))) (((t2).tv_sec > (t1).tv_sec) \ |
| 136 | || (((t2).tv_sec == (t1).tv_sec)&& ((t2).tv_usec > (t1).tv_usec))) |
| 137 | |
| 138 | #define IS_AT_OR_AFTER(t1, t2)(((t2).tv_sec > (t1).tv_sec) || (((t2).tv_sec == (t1).tv_sec )&& ((t2).tv_usec >= (t1).tv_usec))) (((t2).tv_sec > (t1).tv_sec) \ |
| 139 | || (((t2).tv_sec == (t1).tv_sec)&& ((t2).tv_usec >= (t1).tv_usec))) |
| 140 | |
| 141 | #ifdef USE_POLL1 |
| 142 | #ifndef XT_DEFAULT_FDLIST_SIZE32 |
| 143 | #define XT_DEFAULT_FDLIST_SIZE32 32 |
| 144 | #endif |
| 145 | #endif |
| 146 | |
| 147 | static void AdjustHowLong ( |
| 148 | unsigned long *howlong, |
| 149 | struct timeval *start_time) |
| 150 | { |
| 151 | struct timeval new_time, time_spent, lstart_time; |
| 152 | |
| 153 | lstart_time = *start_time; |
| 154 | X_GETTIMEOFDAY (&new_time)gettimeofday(&new_time, (struct timezone*)0); |
| 155 | FIXUP_TIMEVAL(new_time); |
| 156 | TIMEDELTA(time_spent, new_time, lstart_time){ if(((time_spent).tv_usec = (new_time).tv_usec - (lstart_time ).tv_usec) < 0) { (time_spent).tv_usec += 1000000; (time_spent ).tv_sec = (new_time).tv_sec - (lstart_time).tv_sec - 1; } else (time_spent).tv_sec = (new_time).tv_sec - (lstart_time).tv_sec ; }; |
| 157 | if(*howlong <= (unsigned long)(time_spent.tv_sec*1000+time_spent.tv_usec/1000)) |
| 158 | *howlong = (unsigned long)0; /* Timed out */ |
| 159 | else |
| 160 | *howlong -= (time_spent.tv_sec*1000+time_spent.tv_usec/1000); |
| 161 | } |
| 162 | |
| 163 | typedef struct { |
| 164 | struct timeval cur_time; |
| 165 | struct timeval start_time; |
| 166 | struct timeval wait_time; |
| 167 | struct timeval new_time; |
| 168 | struct timeval time_spent; |
| 169 | struct timeval max_wait_time; |
| 170 | #ifndef USE_POLL1 |
| 171 | struct timeval *wait_time_ptr; |
| 172 | #else |
| 173 | int poll_wait; |
| 174 | #endif |
| 175 | } wait_times_t, *wait_times_ptr_t; |
| 176 | |
| 177 | static struct timeval zero_time = { 0 , 0}; |
| 178 | #ifndef USE_POLL1 |
| 179 | static fd_set zero_fd; |
| 180 | #else |
| 181 | #define X_BLOCK-1 -1 |
| 182 | #define X_DONT_BLOCK0 0 |
| 183 | #endif |
| 184 | |
| 185 | static void InitTimes ( |
| 186 | Boolean block, |
| 187 | unsigned long* howlong, |
| 188 | wait_times_ptr_t wt) |
| 189 | { |
| 190 | if (block) { |
| 191 | X_GETTIMEOFDAY (&wt->cur_time)gettimeofday(&wt->cur_time, (struct timezone*)0); |
| 192 | FIXUP_TIMEVAL(wt->cur_time); |
| 193 | wt->start_time = wt->cur_time; |
| 194 | if(howlong == NULL((void*)0)) { /* special case for ever */ |
| 195 | #ifndef USE_POLL1 |
| 196 | wt->wait_time_ptr = NULL((void*)0); |
| 197 | #else |
| 198 | wt->poll_wait = X_BLOCK-1; |
| 199 | #endif |
| 200 | } else { /* block until at most */ |
| 201 | wt->max_wait_time.tv_sec = *howlong/1000; |
| 202 | wt->max_wait_time.tv_usec = (*howlong %1000)*1000; |
| 203 | #ifndef USE_POLL1 |
| 204 | wt->wait_time_ptr = &wt->max_wait_time; |
| 205 | #else |
| 206 | wt->poll_wait = *howlong; |
| 207 | #endif |
| 208 | } |
| 209 | } else { /* don't block */ |
| 210 | wt->max_wait_time = zero_time; |
| 211 | #ifndef USE_POLL1 |
| 212 | wt->wait_time_ptr = &wt->max_wait_time; |
| 213 | #else |
| 214 | wt->poll_wait = X_DONT_BLOCK0; |
| 215 | #endif |
| 216 | } |
| 217 | } |
| 218 | |
| 219 | typedef struct { |
| 220 | #ifndef USE_POLL1 |
| 221 | fd_set rmask, wmask, emask; |
| 222 | int nfds; |
| 223 | #else |
| 224 | struct pollfd* fdlist; |
| 225 | struct pollfd* stack; |
| 226 | int fdlistlen, num_dpys; |
| 227 | #endif |
| 228 | } wait_fds_t, *wait_fds_ptr_t; |
| 229 | |
| 230 | static void InitFds ( |
| 231 | XtAppContext app, |
| 232 | Boolean ignoreEvents, |
| 233 | Boolean ignoreInputs, |
| 234 | wait_fds_ptr_t wf) |
| 235 | { |
| 236 | int ii; |
| 237 | app->rebuild_fdlist = FALSE0; |
| 238 | #ifndef USE_POLL1 |
| 239 | wf->nfds = app->fds.nfds; |
| 240 | if( !ignoreInputs ) { |
| 241 | wf->rmask = app->fds.rmask; |
| 242 | wf->wmask = app->fds.wmask; |
| 243 | wf->emask = app->fds.emask; |
| 244 | } else |
| 245 | wf->rmask = wf->wmask = wf->emask = zero_fd; |
| 246 | |
| 247 | if (!ignoreEvents) |
| 248 | for (ii = 0; ii < app->count; ii++) { |
| 249 | FD_SET (ConnectionNumber(app->list[ii]), &wf->rmask)((void) (((&wf->rmask)->fds_bits)[(((((_XPrivDisplay )app->list[ii])->fd)) / (8 * (int) sizeof (__fd_mask))) ] |= ((__fd_mask) 1 << (((((_XPrivDisplay)app->list[ ii])->fd)) % (8 * (int) sizeof (__fd_mask)))))); |
| 250 | } |
| 251 | #else |
| 252 | #ifndef POLLRDNORM0x040 |
| 253 | #define POLLRDNORM0x040 0 |
| 254 | #endif |
| 255 | |
| 256 | #ifndef POLLRDBAND0x080 |
| 257 | #define POLLRDBAND0x080 0 |
| 258 | #endif |
| 259 | |
| 260 | #ifndef POLLWRNORM0x100 |
| 261 | #define POLLWRNORM0x100 0 |
| 262 | #endif |
| 263 | |
| 264 | #ifndef POLLWRBAND0x200 |
| 265 | #define POLLWRBAND0x200 0 |
| 266 | #endif |
| 267 | |
| 268 | #define XPOLL_READ(0x001|0x040|0x002|0x080) (POLLIN0x001|POLLRDNORM0x040|POLLPRI0x002|POLLRDBAND0x080) |
| 269 | #define XPOLL_WRITE(0x004|0x100|0x200) (POLLOUT0x004|POLLWRNORM0x100|POLLWRBAND0x200) |
| 270 | #define XPOLL_EXCEPT0 0 |
| 271 | |
| 272 | if (!ignoreEvents) |
| 273 | wf->fdlistlen = wf->num_dpys = app->count; |
| 274 | else |
| 275 | wf->fdlistlen = wf->num_dpys = 0; |
| 276 | |
| 277 | if (!ignoreInputs && app->input_list != NULL((void*)0)) { |
| 278 | int ii; |
| 279 | for (ii = 0; ii < (int) app->input_max; ii++) |
| 280 | if (app->input_list[ii] != NULL((void*)0)) |
| 281 | wf->fdlistlen++; |
| 282 | } |
| 283 | |
| 284 | if (!wf->fdlist || wf->fdlist == wf->stack) { |
| 285 | wf->fdlist = (struct pollfd*) |
| 286 | XtStackAlloc (sizeof (struct pollfd) * wf->fdlistlen, wf->stack)((sizeof (struct pollfd) * wf->fdlistlen) <= sizeof(wf-> stack) ? (XtPointer)(wf->stack) : XtMalloc((unsigned)(sizeof (struct pollfd) * wf->fdlistlen))); |
| 287 | } else { |
| 288 | wf->fdlist = (struct pollfd*) |
| 289 | XtRealloc ((char*) wf->fdlist, |
| 290 | sizeof (struct pollfd) * wf->fdlistlen); |
| 291 | } |
| 292 | |
| 293 | if (wf->fdlistlen) { |
| 294 | struct pollfd* fdlp = wf->fdlist; |
| 295 | InputEvent* iep; |
| 296 | |
| 297 | if (!ignoreEvents) |
| 298 | for (ii = 0 ; ii < wf->num_dpys; ii++, fdlp++) { |
| 299 | fdlp->fd = ConnectionNumber (app->list[ii])(((_XPrivDisplay)app->list[ii])->fd); |
| 300 | fdlp->events = POLLIN0x001; |
| 301 | } |
| 302 | if (!ignoreInputs && app->input_list != NULL((void*)0)) |
| 303 | for (ii = 0; ii < app->input_max; ii++) |
| 304 | if (app->input_list[ii] != NULL((void*)0)) { |
| 305 | iep = app->input_list[ii]; |
| 306 | fdlp->fd = ii; |
| 307 | fdlp->events = 0; |
| 308 | for ( ; iep; iep = iep->ie_next) { |
| 309 | if (iep->ie_condition & XtInputReadMask(1L<<0)) |
| 310 | fdlp->events |= XPOLL_READ(0x001|0x040|0x002|0x080); |
| 311 | if (iep->ie_condition & XtInputWriteMask(1L<<1)) |
| 312 | fdlp->events |= XPOLL_WRITE(0x004|0x100|0x200); |
| 313 | if (iep->ie_condition & XtInputExceptMask(1L<<2)) |
| 314 | fdlp->events |= XPOLL_EXCEPT0; |
| 315 | } |
| 316 | fdlp++; |
| 317 | } |
| 318 | } |
| 319 | #endif |
| 320 | } |
| 321 | |
| 322 | static void AdjustTimes ( |
| 323 | XtAppContext app, |
| 324 | Boolean block, |
| 325 | unsigned long* howlong, |
| 326 | Boolean ignoreTimers, |
| 327 | wait_times_ptr_t wt) |
| 328 | { |
| 329 | if (app->timerQueue != NULL((void*)0) && !ignoreTimers && block) { |
| 330 | if (IS_AFTER (wt->cur_time, app->timerQueue->te_timer_value)(((app->timerQueue->te_timer_value).tv_sec > (wt-> cur_time).tv_sec) || (((app->timerQueue->te_timer_value ).tv_sec == (wt->cur_time).tv_sec)&& ((app->timerQueue ->te_timer_value).tv_usec > (wt->cur_time).tv_usec)) )) { |
| 331 | TIMEDELTA (wt->wait_time, app->timerQueue->te_timer_value, wt->cur_time){ if(((wt->wait_time).tv_usec = (app->timerQueue->te_timer_value ).tv_usec - (wt->cur_time).tv_usec) < 0) { (wt->wait_time ).tv_usec += 1000000; (wt->wait_time).tv_sec = (app->timerQueue ->te_timer_value).tv_sec - (wt->cur_time).tv_sec - 1; } else (wt->wait_time).tv_sec = (app->timerQueue->te_timer_value ).tv_sec - (wt->cur_time).tv_sec; }; |
| 332 | if (howlong == NULL((void*)0) || IS_AFTER (wt->wait_time, wt->max_wait_time)(((wt->max_wait_time).tv_sec > (wt->wait_time).tv_sec ) || (((wt->max_wait_time).tv_sec == (wt->wait_time).tv_sec )&& ((wt->max_wait_time).tv_usec > (wt->wait_time ).tv_usec)))) |
| 333 | #ifndef USE_POLL1 |
| 334 | wt->wait_time_ptr = &wt->wait_time; |
| 335 | else |
| 336 | wt->wait_time_ptr = &wt->max_wait_time; |
| 337 | } else |
| 338 | wt->wait_time_ptr = &zero_time; |
| 339 | } |
| 340 | #else |
| 341 | wt->poll_wait = wt->wait_time.tv_sec * 1000 + wt->wait_time.tv_usec / 1000; |
| 342 | else |
| 343 | wt->poll_wait = wt->max_wait_time.tv_sec * 1000 + wt->max_wait_time.tv_usec / 1000; |
| 344 | } else |
| 345 | wt->poll_wait = X_DONT_BLOCK0; |
| 346 | } |
| 347 | #endif |
| 348 | } |
| 349 | |
| 350 | |
| 351 | static int IoWait ( |
| 352 | wait_times_ptr_t wt, |
| 353 | wait_fds_ptr_t wf) |
| 354 | { |
| 355 | #ifndef USE_POLL1 |
| 356 | return Select (wf->nfds, &wf->rmask, &wf->wmask, &wf->emask, |
| 357 | wt->wait_time_ptr); |
| 358 | #else |
| 359 | return poll (wf->fdlist, wf->fdlistlen, wt->poll_wait); |
| 360 | #endif |
| 361 | } |
| 362 | |
| 363 | |
| 364 | static void FindInputs ( |
| 365 | XtAppContext app, |
| 366 | wait_fds_ptr_t wf, |
| 367 | int nfds, |
| 368 | Boolean ignoreEvents, |
| 369 | Boolean ignoreInputs, |
| 370 | int* dpy_no, |
| 371 | int* found_input) |
| 372 | { |
| 373 | XtInputMask condition; |
| 374 | InputEvent *ep; |
| 375 | int ii; |
| 376 | #ifndef USE_POLL1 /* { check ready file descriptors block */ |
| 377 | #ifdef XTHREADS1 |
| 378 | fd_set rmask; |
| 379 | #endif |
| 380 | int dd; |
| 381 | *dpy_no = -1; |
| 382 | *found_input = False0; |
| 383 | |
| 384 | #ifdef XTHREADS1 |
| 385 | rmask = app->fds.rmask; |
| 386 | for (dd = app->count; dd-- > 0; ) |
| 387 | FD_SET (ConnectionNumber (app->list[dd]), &rmask)((void) (((&rmask)->fds_bits)[(((((_XPrivDisplay)app-> list[dd])->fd)) / (8 * (int) sizeof (__fd_mask)))] |= ((__fd_mask ) 1 << (((((_XPrivDisplay)app->list[dd])->fd)) % ( 8 * (int) sizeof (__fd_mask)))))); |
| 388 | #endif |
| 389 | |
| 390 | for (ii = 0; ii < wf->nfds && nfds > 0; ii++) { |
| 391 | condition = 0; |
| 392 | if (FD_ISSET (ii, &wf->rmask)((((&wf->rmask)->fds_bits)[((ii) / (8 * (int) sizeof (__fd_mask)))] & ((__fd_mask) 1 << ((ii) % (8 * (int ) sizeof (__fd_mask))))) != 0) |
| 393 | #ifdef XTHREADS1 |
| 394 | && FD_ISSET (ii, &rmask)((((&rmask)->fds_bits)[((ii) / (8 * (int) sizeof (__fd_mask )))] & ((__fd_mask) 1 << ((ii) % (8 * (int) sizeof ( __fd_mask))))) != 0) |
| 395 | #endif |
| 396 | ) { |
| 397 | nfds--; |
| 398 | if (!ignoreEvents) { |
| 399 | for (dd = 0; dd < app->count; dd++) { |
| 400 | if (ii == ConnectionNumber (app->list[dd])(((_XPrivDisplay)app->list[dd])->fd)) { |
| 401 | if (*dpy_no == -1) { |
| 402 | if (XEventsQueued (app->list[dd], QueuedAfterReading1 )) |
| 403 | *dpy_no = dd; |
| 404 | /* |
| 405 | * An error event could have arrived |
| 406 | * without any real events, or events |
| 407 | * could have been swallowed by Xlib, |
| 408 | * or the connection may be broken. |
| 409 | * We can't tell the difference, so |
| 410 | * assume Xlib will eventually discover |
| 411 | * a broken connection. |
| 412 | */ |
| 413 | } |
| 414 | goto ENDILOOP; |
| 415 | } |
| 416 | } |
| 417 | } |
| 418 | condition = XtInputReadMask(1L<<0); |
| 419 | } |
| 420 | if (FD_ISSET (ii, &wf->wmask)((((&wf->wmask)->fds_bits)[((ii) / (8 * (int) sizeof (__fd_mask)))] & ((__fd_mask) 1 << ((ii) % (8 * (int ) sizeof (__fd_mask))))) != 0) |
| 421 | #ifdef XTHREADS1 |
| 422 | && FD_ISSET (ii, &app->fds.wmask)((((&app->fds.wmask)->fds_bits)[((ii) / (8 * (int) sizeof (__fd_mask)))] & ((__fd_mask) 1 << ((ii) % (8 * (int ) sizeof (__fd_mask))))) != 0) |
| 423 | #endif |
| 424 | ) { |
| 425 | condition |= XtInputWriteMask(1L<<1); |
| 426 | nfds--; |
| 427 | } |
| 428 | if (FD_ISSET (ii, &wf->emask)((((&wf->emask)->fds_bits)[((ii) / (8 * (int) sizeof (__fd_mask)))] & ((__fd_mask) 1 << ((ii) % (8 * (int ) sizeof (__fd_mask))))) != 0) |
| 429 | #ifdef XTHREADS1 |
| 430 | && FD_ISSET (ii, &app->fds.emask)((((&app->fds.emask)->fds_bits)[((ii) / (8 * (int) sizeof (__fd_mask)))] & ((__fd_mask) 1 << ((ii) % (8 * (int ) sizeof (__fd_mask))))) != 0) |
| 431 | #endif |
| 432 | ) { |
| 433 | condition |= XtInputExceptMask(1L<<2); |
| 434 | nfds--; |
| 435 | } |
| 436 | if (condition) { |
| 437 | for (ep = app->input_list[ii]; ep; ep = ep->ie_next) |
| 438 | if (condition & ep->ie_condition) { |
| 439 | /* make sure this input isn't already marked outstanding */ |
| 440 | InputEvent *oq; |
| 441 | for (oq = app->outstandingQueue; oq; oq = oq->ie_oq) |
| 442 | if (oq == ep) |
| 443 | break; |
| 444 | if (!oq) |
| 445 | { |
| 446 | ep->ie_oq = app->outstandingQueue; |
| 447 | app->outstandingQueue = ep; |
| 448 | } |
| 449 | } |
| 450 | *found_input = True1; |
| 451 | } |
| 452 | ENDILOOP: ; |
| 453 | } /* endfor */ |
| 454 | #else /* }{ */ |
| 455 | struct pollfd* fdlp; |
| 456 | |
| 457 | *dpy_no = -1; |
| 458 | *found_input = False0; |
| 459 | |
| 460 | if (!ignoreEvents) { |
| 461 | fdlp = wf->fdlist; |
| 462 | for (ii = 0; ii < wf->num_dpys; ii++, fdlp++) { |
| 463 | if (*dpy_no == -1 && fdlp->revents & (POLLIN0x001|POLLHUP0x010|POLLERR0x008) && |
| 464 | #ifdef XTHREADS1 |
| 465 | !(fdlp->revents & POLLNVAL0x020) && |
| 466 | #endif |
| 467 | XEventsQueued (app->list[ii], QueuedAfterReading1)) { |
| 468 | *dpy_no = ii; |
| 469 | break; |
| 470 | } |
| 471 | } |
| 472 | } |
| 473 | |
| 474 | if (!ignoreInputs) { |
| 475 | fdlp = &wf->fdlist[wf->num_dpys]; |
| 476 | for (ii = wf->num_dpys; ii < wf->fdlistlen; ii++, fdlp++) { |
| 477 | condition = 0; |
| 478 | if (fdlp->revents) { |
| 479 | if (fdlp->revents & (XPOLL_READ(0x001|0x040|0x002|0x080)|POLLHUP0x010|POLLERR0x008) |
| 480 | #ifdef XTHREADS1 |
| 481 | && !(fdlp->revents & POLLNVAL0x020) |
| 482 | #endif |
| 483 | ) |
| 484 | condition = XtInputReadMask(1L<<0); |
| 485 | if (fdlp->revents & XPOLL_WRITE(0x004|0x100|0x200)) |
| 486 | condition |= XtInputWriteMask(1L<<1); |
| 487 | if (fdlp->revents & XPOLL_EXCEPT0) |
| 488 | condition |= XtInputExceptMask(1L<<2); |
| 489 | } |
| 490 | if (condition) { |
| 491 | *found_input = True1; |
| 492 | for (ep = app->input_list[fdlp->fd]; ep; ep = ep->ie_next) |
| 493 | if (condition & ep->ie_condition) { |
| 494 | InputEvent *oq; |
| 495 | /* make sure this input isn't already marked outstanding */ |
| 496 | for (oq = app->outstandingQueue; oq; oq = oq->ie_oq) |
| 497 | if (oq == ep) |
| 498 | break; |
| 499 | if (!oq) |
| 500 | { |
| 501 | ep->ie_oq = app->outstandingQueue; |
| 502 | app->outstandingQueue = ep; |
| 503 | } |
| 504 | } |
| 505 | } |
| 506 | } |
| 507 | } |
| 508 | #endif /* } */ |
| 509 | } |
| 510 | |
| 511 | /* |
| 512 | * Routine to block in the toolkit. This should be the only call to select. |
| 513 | * |
| 514 | * This routine returns when there is something to be done. |
| 515 | * |
| 516 | * Before calling this with ignoreInputs==False, app->outstandingQueue should |
| 517 | * be checked; this routine will not verify that an alternate input source |
| 518 | * has not already been enqueued. |
| 519 | * |
| 520 | * |
| 521 | * _XtWaitForSomething( appContext, |
| 522 | * ignoreEvent, ignoreTimers, ignoreInputs, ignoreSignals, |
| 523 | * block, drop_lock, howlong) |
| 524 | * XtAppContext app; (Displays to check wait on) |
| 525 | * |
| 526 | * Boolean ignoreEvents; (Don't return if XEvents are available |
| 527 | * Also implies forget XEvents exist) |
| 528 | * |
| 529 | * Boolean ignoreTimers; (Ditto for timers) |
| 530 | * |
| 531 | * Boolean ignoreInputs; (Ditto for input callbacks ) |
| 532 | * |
| 533 | * Boolean ignoreSignals; (Ditto for signals) |
| 534 | * |
| 535 | * Boolean block; (Okay to block) |
| 536 | * |
| 537 | * Boolean drop_lock (drop lock before going into select/poll) |
| 538 | * |
| 539 | * TimeVal howlong; (howlong to wait for if blocking and not |
| 540 | * doing Timers... Null means forever. |
| 541 | * Maybe should mean shortest of both) |
| 542 | * Returns display for which input is available, if any |
| 543 | * and if ignoreEvents==False, else returns -1 |
| 544 | * |
| 545 | * if ignoring everything && block=True && howlong=NULL, you'll have |
| 546 | * lots of time for coffee; better not try it! In fact, it probably |
| 547 | * makes little sense to do this regardless of the value of howlong |
| 548 | * (bottom line is, we don't bother checking here). |
| 549 | * |
| 550 | * If drop_lock is FALSE, the app->lock->mutex is not unlocked before |
| 551 | * entering select/poll. It is illegal for drop_lock to be FALSE if |
| 552 | * ignoreTimers, ignoreInputs, or ignoreSignals is FALSE. |
| 553 | */ |
| 554 | int _XtWaitForSomething( |
| 555 | XtAppContext app, |
| 556 | _XtBooleanBoolean ignoreEvents, |
| 557 | _XtBooleanBoolean ignoreTimers, |
| 558 | _XtBooleanBoolean ignoreInputs, |
| 559 | _XtBooleanBoolean ignoreSignals, |
| 560 | _XtBooleanBoolean block, |
| 561 | #ifdef XTHREADS1 |
| 562 | _XtBooleanBoolean drop_lock, |
| 563 | #endif |
| 564 | unsigned long *howlong) |
| 565 | { |
| 566 | wait_times_t wt; |
| 567 | wait_fds_t wf; |
| 568 | int nfds, dpy_no, found_input, dd; |
| 569 | #ifdef XTHREADS1 |
| 570 | Boolean push_thread = TRUE1; |
| 571 | Boolean pushed_thread = FALSE0; |
| 572 | int level = 0; |
| 573 | #endif |
| 574 | #ifdef USE_POLL1 |
| 575 | struct pollfd fdlist[XT_DEFAULT_FDLIST_SIZE32]; |
| 576 | #endif |
| 577 | |
| 578 | #ifdef XTHREADS1 |
| 579 | /* assert ((ignoreTimers && ignoreInputs && ignoreSignals) || drop_lock); */ |
| 580 | /* If not multi-threaded, never drop lock */ |
| 581 | if (app->lock == (ThreadAppProc) NULL((void*)0)) |
| 582 | drop_lock = FALSE0; |
| 583 | #endif |
| 584 | |
| 585 | InitTimes (block, howlong, &wt); |
| 586 | |
| 587 | #ifdef USE_POLL1 |
| 588 | wf.fdlist = NULL((void*)0); |
| 589 | wf.stack = fdlist; |
| 590 | wf.fdlistlen = wf.num_dpys = 0; |
| 591 | #endif |
| 592 | |
| 593 | WaitLoop: |
| 594 | app->rebuild_fdlist = TRUE1; |
| 595 | |
| 596 | while (1) { |
| 597 | AdjustTimes (app, block, howlong, ignoreTimers, &wt); |
| 598 | |
| 599 | if (block && app->block_hook_list) { |
| 600 | BlockHook hook; |
| 601 | for (hook = app->block_hook_list; |
| 602 | hook != NULL((void*)0); |
| 603 | hook = hook->next) |
| 604 | (*hook->proc) (hook->closure); |
| 605 | |
| 606 | if (!ignoreEvents) |
| 607 | /* see if the hook(s) generated any protocol */ |
| 608 | for (dd = 0; dd < app->count; dd++) |
| 609 | if (XEventsQueued(app->list[dd], QueuedAlready0)) { |
| 610 | #ifdef USE_POLL1 |
| 611 | XtStackFree ((XtPointer) wf.fdlist, fdlist){ if (((XtPointer) wf.fdlist) != ((XtPointer)(fdlist))) XtFree ((XtPointer) wf.fdlist); }; |
| 612 | #endif |
| 613 | return dd; |
| 614 | } |
| 615 | } |
| 616 | |
| 617 | if (app->rebuild_fdlist) |
| 618 | InitFds (app, ignoreEvents, ignoreInputs, &wf); |
| 619 | |
| 620 | #ifdef XTHREADS1 /* { */ |
| 621 | if (drop_lock) { |
| 622 | YIELD_APP_LOCK(app, &push_thread, &pushed_thread, &level)if(app && app->yield_lock) (*app->yield_lock)(app ,&push_thread,&pushed_thread,&level); |
| 623 | nfds = IoWait (&wt, &wf); |
| 624 | RESTORE_APP_LOCK(app, level, &pushed_thread)if(app && app->restore_lock) (*app->restore_lock )(app,level,&pushed_thread); |
| 625 | } else |
| 626 | #endif /* } */ |
| 627 | nfds = IoWait (&wt, &wf); |
| 628 | if (nfds == -1) { |
| 629 | /* |
| 630 | * interrupt occured recalculate time value and wait again. |
| 631 | */ |
| 632 | if (errno(*__errno_location ()) == EINTR4 || errno(*__errno_location ()) == EAGAIN11) { |
| 633 | if (errno(*__errno_location ()) == EAGAIN11) { |
| 634 | errno(*__errno_location ()) = 0; /* errno is not self reseting */ |
| 635 | continue; |
| 636 | } |
| 637 | errno(*__errno_location ()) = 0; /* errno is not self reseting */ |
| 638 | |
| 639 | /* was it interrupted by a signal that we care about? */ |
| 640 | if (!ignoreSignals && app->signalQueue != NULL((void*)0)) { |
| 641 | SignalEventRec *se_ptr = app->signalQueue; |
| 642 | while (se_ptr != NULL((void*)0)) { |
| 643 | if (se_ptr->se_notice) { |
| 644 | if (block && howlong != NULL((void*)0)) |
| 645 | AdjustHowLong (howlong, &wt.start_time); |
| 646 | #ifdef USE_POLL1 |
| 647 | XtStackFree ((XtPointer) wf.fdlist, fdlist){ if (((XtPointer) wf.fdlist) != ((XtPointer)(fdlist))) XtFree ((XtPointer) wf.fdlist); }; |
| 648 | #endif |
| 649 | return -1; |
| 650 | } |
| 651 | se_ptr = se_ptr->se_next; |
| 652 | } |
| 653 | } |
| 654 | |
| 655 | if (!ignoreEvents) |
| 656 | /* get Xlib to detect a bad connection */ |
| 657 | for (dd = 0; dd < app->count; dd++) |
| 658 | if (XEventsQueued(app->list[dd], QueuedAfterReading1)) { |
| 659 | #ifdef USE_POLL1 |
| 660 | XtStackFree ((XtPointer) wf.fdlist, fdlist){ if (((XtPointer) wf.fdlist) != ((XtPointer)(fdlist))) XtFree ((XtPointer) wf.fdlist); }; |
| 661 | #endif |
| 662 | return dd; |
| 663 | } |
| 664 | |
| 665 | if (block) { |
| 666 | #ifndef USE_POLL1 |
| 667 | if (wt.wait_time_ptr == NULL((void*)0)) |
| 668 | #else |
| 669 | if (wt.poll_wait == X_BLOCK-1) |
| 670 | #endif |
| 671 | continue; |
| 672 | X_GETTIMEOFDAY (&wt.new_time)gettimeofday(&wt.new_time, (struct timezone*)0); |
| 673 | FIXUP_TIMEVAL (wt.new_time); |
| 674 | TIMEDELTA (wt.time_spent, wt.new_time, wt.cur_time){ if(((wt.time_spent).tv_usec = (wt.new_time).tv_usec - (wt.cur_time ).tv_usec) < 0) { (wt.time_spent).tv_usec += 1000000; (wt. time_spent).tv_sec = (wt.new_time).tv_sec - (wt.cur_time).tv_sec - 1; } else (wt.time_spent).tv_sec = (wt.new_time).tv_sec - ( wt.cur_time).tv_sec; }; |
| 675 | wt.cur_time = wt.new_time; |
| 676 | #ifndef USE_POLL1 |
| 677 | if (IS_AFTER (wt.time_spent, *wt.wait_time_ptr)(((*wt.wait_time_ptr).tv_sec > (wt.time_spent).tv_sec) || ( ((*wt.wait_time_ptr).tv_sec == (wt.time_spent).tv_sec)&& ((*wt.wait_time_ptr).tv_usec > (wt.time_spent).tv_usec)))) { |
| 678 | TIMEDELTA (wt.wait_time, *wt.wait_time_ptr, wt.time_spent){ if(((wt.wait_time).tv_usec = (*wt.wait_time_ptr).tv_usec - ( wt.time_spent).tv_usec) < 0) { (wt.wait_time).tv_usec += 1000000 ; (wt.wait_time).tv_sec = (*wt.wait_time_ptr).tv_sec - (wt.time_spent ).tv_sec - 1; } else (wt.wait_time).tv_sec = (*wt.wait_time_ptr ).tv_sec - (wt.time_spent).tv_sec; }; |
| 679 | wt.wait_time_ptr = &wt.wait_time; |
| 680 | continue; |
| 681 | } else |
| 682 | #else |
| 683 | if ((wt.time_spent.tv_sec * 1000 + wt.time_spent.tv_usec / 1000) < wt.poll_wait) { |
| 684 | wt.poll_wait -= (wt.time_spent.tv_sec * 1000 + wt.time_spent.tv_usec / 1000); |
| 685 | continue; |
| 686 | } else |
| 687 | #endif |
| 688 | nfds = 0; |
| 689 | } |
| 690 | } else { |
| 691 | char Errno[12]; |
| 692 | String param = Errno; |
| 693 | Cardinal param_count = 1; |
| 694 | |
| 695 | sprintf( Errno, "%d", errno(*__errno_location ())); |
| 696 | XtAppWarningMsg(app, "communicationError","select", |
| 697 | XtCXtToolkitError,"Select failed; error code %s", |
| 698 | ¶m, ¶m_count); |
| 699 | continue; |
| 700 | } |
| 701 | } /* timed out or input available */ |
| 702 | break; |
| 703 | } |
| 704 | |
| 705 | if (nfds == 0) { |
| 706 | /* Timed out */ |
| 707 | if (howlong) |
| 708 | *howlong = (unsigned long)0; |
| 709 | #ifdef USE_POLL1 |
| 710 | XtStackFree ((XtPointer) wf.fdlist, fdlist){ if (((XtPointer) wf.fdlist) != ((XtPointer)(fdlist))) XtFree ((XtPointer) wf.fdlist); }; |
| 711 | #endif |
| 712 | return -1; |
| 713 | } |
| 714 | |
| 715 | if (block && howlong != NULL((void*)0)) |
| 716 | AdjustHowLong (howlong, &wt.start_time); |
| 717 | |
| 718 | if (ignoreInputs && ignoreEvents) { |
| 719 | #ifdef USE_POLL1 |
| 720 | XtStackFree ((XtPointer) wf.fdlist, fdlist){ if (((XtPointer) wf.fdlist) != ((XtPointer)(fdlist))) XtFree ((XtPointer) wf.fdlist); }; |
| 721 | #endif |
| 722 | return -1; |
| 723 | } else |
| 724 | FindInputs (app, &wf, nfds, |
| 725 | ignoreEvents, ignoreInputs, |
| 726 | &dpy_no, &found_input); |
| 727 | |
| 728 | if (dpy_no >= 0 || found_input) { |
| 729 | #ifdef USE_POLL1 |
| 730 | XtStackFree ((XtPointer) wf.fdlist, fdlist){ if (((XtPointer) wf.fdlist) != ((XtPointer)(fdlist))) XtFree ((XtPointer) wf.fdlist); }; |
| 731 | #endif |
| 732 | return dpy_no; |
| 733 | } |
| 734 | if (block) |
| 735 | goto WaitLoop; |
| 736 | else { |
| 737 | #ifdef USE_POLL1 |
| 738 | XtStackFree ((XtPointer) wf.fdlist, fdlist){ if (((XtPointer) wf.fdlist) != ((XtPointer)(fdlist))) XtFree ((XtPointer) wf.fdlist); }; |
| 739 | #endif |
| 740 | return -1; |
| 741 | } |
| 742 | } |
| 743 | |
| 744 | #define IeCallProc(ptr)(*ptr->ie_proc) (ptr->ie_closure, &ptr->ie_source , (XtInputId*)&ptr); \ |
| 745 | (*ptr->ie_proc) (ptr->ie_closure, &ptr->ie_source, (XtInputId*)&ptr); |
| 746 | |
| 747 | #define TeCallProc(ptr)(*ptr->te_proc) (ptr->te_closure, (XtIntervalId*)&ptr ); \ |
| 748 | (*ptr->te_proc) (ptr->te_closure, (XtIntervalId*)&ptr); |
| 749 | |
| 750 | #define SeCallProc(ptr)(*ptr->se_proc) (ptr->se_closure, (XtSignalId*)&ptr ); \ |
| 751 | (*ptr->se_proc) (ptr->se_closure, (XtSignalId*)&ptr); |
| 752 | |
| 753 | /* |
| 754 | * Public Routines |
| 755 | */ |
| 756 | |
| 757 | XtIntervalId XtAddTimeOut( |
| 758 | unsigned long interval, |
| 759 | XtTimerCallbackProc proc, |
| 760 | XtPointer closure) |
| 761 | { |
| 762 | return XtAppAddTimeOut(_XtDefaultAppContext(), |
| 763 | interval, proc, closure); |
| 764 | } |
| 765 | |
| 766 | static void QueueTimerEvent( |
| 767 | XtAppContext app, |
| 768 | TimerEventRec *ptr) |
| 769 | { |
| 770 | TimerEventRec *t,**tt; |
| 771 | tt = &app->timerQueue; |
| 772 | t = *tt; |
| 773 | while (t != NULL((void*)0) && |
| 774 | IS_AFTER(t->te_timer_value, ptr->te_timer_value)(((ptr->te_timer_value).tv_sec > (t->te_timer_value) .tv_sec) || (((ptr->te_timer_value).tv_sec == (t->te_timer_value ).tv_sec)&& ((ptr->te_timer_value).tv_usec > (t ->te_timer_value).tv_usec)))) { |
| 775 | tt = &t->te_next; |
| 776 | t = *tt; |
| 777 | } |
| 778 | ptr->te_next = t; |
| 779 | *tt = ptr; |
| 780 | } |
| 781 | |
| 782 | XtIntervalId XtAppAddTimeOut( |
| 783 | XtAppContext app, |
| 784 | unsigned long interval, |
| 785 | XtTimerCallbackProc proc, |
| 786 | XtPointer closure) |
| 787 | { |
| 788 | TimerEventRec *tptr; |
| 789 | struct timeval current_time; |
| 790 | |
| 791 | LOCK_APP(app)if(app && app->lock)(*app->lock)(app); |
| 792 | LOCK_PROCESSif(_XtProcessLock)(*_XtProcessLock)(); |
| 793 | if (freeTimerRecs) { |
| 794 | tptr = freeTimerRecs; |
| 795 | freeTimerRecs = tptr->te_next; |
| 796 | } |
| 797 | else tptr = XtNew(TimerEventRec)((TimerEventRec *) XtMalloc((unsigned) sizeof(TimerEventRec)) ); |
| 798 | UNLOCK_PROCESSif(_XtProcessUnlock)(*_XtProcessUnlock)(); |
| 799 | |
| 800 | tptr->te_next = NULL((void*)0); |
| 801 | tptr->te_closure = closure; |
| 802 | tptr->te_proc = proc; |
| 803 | tptr->app = app; |
| 804 | tptr->te_timer_value.tv_sec = interval/1000; |
| 805 | tptr->te_timer_value.tv_usec = (interval%1000)*1000; |
| 806 | X_GETTIMEOFDAY (¤t_time)gettimeofday(¤t_time, (struct timezone*)0); |
| 807 | FIXUP_TIMEVAL(current_time); |
| 808 | ADD_TIME(tptr->te_timer_value,tptr->te_timer_value,current_time){ if(((tptr->te_timer_value).tv_usec = (tptr->te_timer_value ).tv_usec + (current_time).tv_usec) >= 1000000) { (tptr-> te_timer_value).tv_usec -= 1000000; (tptr->te_timer_value) .tv_sec = (tptr->te_timer_value).tv_sec + (current_time).tv_sec + 1 ; } else { (tptr->te_timer_value).tv_sec = (tptr-> te_timer_value).tv_sec + (current_time).tv_sec ; if(((tptr-> te_timer_value).tv_sec >= 1) && (((tptr->te_timer_value ).tv_usec <0))) { (tptr->te_timer_value).tv_sec --;(tptr ->te_timer_value).tv_usec += 1000000; } } }; |
| 809 | QueueTimerEvent(app, tptr); |
| 810 | UNLOCK_APP(app)if(app && app->unlock)(*app->unlock)(app); |
| 811 | return( (XtIntervalId) tptr); |
| 812 | } |
| 813 | |
| 814 | void XtRemoveTimeOut( |
| 815 | XtIntervalId id) |
| 816 | { |
| 817 | TimerEventRec *t, *last, *tid = (TimerEventRec *) id; |
| 818 | XtAppContext app = tid->app; |
| 819 | |
| 820 | /* find it */ |
| 821 | LOCK_APP(app)if(app && app->lock)(*app->lock)(app); |
| 822 | for(t = app->timerQueue, last = NULL((void*)0); |
| 823 | t != NULL((void*)0) && t != tid; |
| 824 | t = t->te_next) last = t; |
| 825 | |
| 826 | if (t == NULL((void*)0)) { |
| 827 | UNLOCK_APP(app)if(app && app->unlock)(*app->unlock)(app); |
| 828 | return; /* couldn't find it */ |
| 829 | } |
| 830 | if(last == NULL((void*)0)) { /* first one on the list */ |
| 831 | app->timerQueue = t->te_next; |
| 832 | } else last->te_next = t->te_next; |
| 833 | |
| 834 | LOCK_PROCESSif(_XtProcessLock)(*_XtProcessLock)(); |
| 835 | t->te_next = freeTimerRecs; |
| 836 | freeTimerRecs = t; |
| 837 | UNLOCK_PROCESSif(_XtProcessUnlock)(*_XtProcessUnlock)(); |
| 838 | UNLOCK_APP(app)if(app && app->unlock)(*app->unlock)(app); |
| 839 | } |
| 840 | |
| 841 | XtWorkProcId XtAddWorkProc( |
| 842 | XtWorkProc proc, |
| 843 | XtPointer closure) |
| 844 | { |
| 845 | return XtAppAddWorkProc(_XtDefaultAppContext(), proc, closure); |
| 846 | } |
| 847 | |
| 848 | XtWorkProcId XtAppAddWorkProc( |
| 849 | XtAppContext app, |
| 850 | XtWorkProc proc, |
| 851 | XtPointer closure) |
| 852 | { |
| 853 | WorkProcRec *wptr; |
| 854 | |
| 855 | LOCK_APP(app)if(app && app->lock)(*app->lock)(app); |
| 856 | LOCK_PROCESSif(_XtProcessLock)(*_XtProcessLock)(); |
| 857 | if (freeWorkRecs) { |
| 858 | wptr = freeWorkRecs; |
| 859 | freeWorkRecs = wptr->next; |
| 860 | } else wptr = XtNew(WorkProcRec)((WorkProcRec *) XtMalloc((unsigned) sizeof(WorkProcRec))); |
| 861 | UNLOCK_PROCESSif(_XtProcessUnlock)(*_XtProcessUnlock)(); |
| 862 | wptr->next = app->workQueue; |
| 863 | wptr->closure = closure; |
| 864 | wptr->proc = proc; |
| 865 | wptr->app = app; |
| 866 | app->workQueue = wptr; |
| 867 | UNLOCK_APP(app)if(app && app->unlock)(*app->unlock)(app); |
| 868 | return (XtWorkProcId) wptr; |
| 869 | } |
| 870 | |
| 871 | void XtRemoveWorkProc( |
| 872 | XtWorkProcId id) |
| 873 | { |
| 874 | WorkProcRec *wid= (WorkProcRec *) id, *w, *last; |
| 875 | XtAppContext app = wid->app; |
| 876 | |
| 877 | LOCK_APP(app)if(app && app->lock)(*app->lock)(app); |
| 878 | /* find it */ |
| 879 | for(w = app->workQueue, last = NULL((void*)0); |
| 880 | w != NULL((void*)0) && w != wid; w = w->next) last = w; |
| 881 | |
| 882 | if (w == NULL((void*)0)) { |
| 883 | UNLOCK_APP(app)if(app && app->unlock)(*app->unlock)(app); |
| 884 | return; /* couldn't find it */ |
| 885 | } |
| 886 | |
| 887 | if(last == NULL((void*)0)) app->workQueue = w->next; |
| 888 | else last->next = w->next; |
| 889 | LOCK_PROCESSif(_XtProcessLock)(*_XtProcessLock)(); |
| 890 | w->next = freeWorkRecs; |
| 891 | freeWorkRecs = w; |
| 892 | UNLOCK_PROCESSif(_XtProcessUnlock)(*_XtProcessUnlock)(); |
| 893 | UNLOCK_APP(app)if(app && app->unlock)(*app->unlock)(app); |
| 894 | } |
| 895 | |
| 896 | XtSignalId XtAddSignal( |
| 897 | XtSignalCallbackProc proc, |
| 898 | XtPointer closure) |
| 899 | { |
| 900 | return XtAppAddSignal(_XtDefaultAppContext(), proc, closure); |
| 901 | } |
| 902 | |
| 903 | XtSignalId XtAppAddSignal( |
| 904 | XtAppContext app, |
| 905 | XtSignalCallbackProc proc, |
| 906 | XtPointer closure) |
| 907 | { |
| 908 | SignalEventRec *sptr; |
| 909 | |
| 910 | LOCK_APP(app)if(app && app->lock)(*app->lock)(app); |
| 911 | LOCK_PROCESSif(_XtProcessLock)(*_XtProcessLock)(); |
| 912 | if (freeSignalRecs) { |
| 913 | sptr = freeSignalRecs; |
| 914 | freeSignalRecs = sptr->se_next; |
| 915 | } else |
| 916 | sptr = XtNew(SignalEventRec)((SignalEventRec *) XtMalloc((unsigned) sizeof(SignalEventRec ))); |
| 917 | UNLOCK_PROCESSif(_XtProcessUnlock)(*_XtProcessUnlock)(); |
| 918 | sptr->se_next = app->signalQueue; |
| 919 | sptr->se_closure = closure; |
| 920 | sptr->se_proc = proc; |
| 921 | sptr->app = app; |
| 922 | sptr->se_notice = FALSE0; |
| 923 | app->signalQueue = sptr; |
| 924 | UNLOCK_APP(app)if(app && app->unlock)(*app->unlock)(app); |
| 925 | return (XtSignalId) sptr; |
| 926 | } |
| 927 | |
| 928 | void XtRemoveSignal( |
| 929 | XtSignalId id) |
| 930 | { |
| 931 | SignalEventRec *sid = (SignalEventRec*) id, *s, *last = NULL((void*)0); |
| 932 | XtAppContext app = sid->app; |
| 933 | |
| 934 | LOCK_APP(app)if(app && app->lock)(*app->lock)(app); |
| 935 | for (s = app->signalQueue; s != NULL((void*)0) && s != sid; s = s->se_next) |
| 936 | last = s; |
| 937 | if (s == NULL((void*)0)) { |
| 938 | UNLOCK_APP(app)if(app && app->unlock)(*app->unlock)(app); |
| 939 | return; |
| 940 | } |
| 941 | if (last == NULL((void*)0)) |
| 942 | app->signalQueue = s->se_next; |
| 943 | else |
| 944 | last->se_next = s->se_next; |
| 945 | LOCK_PROCESSif(_XtProcessLock)(*_XtProcessLock)(); |
| 946 | s->se_next = freeSignalRecs; |
| 947 | freeSignalRecs = s; |
| 948 | UNLOCK_PROCESSif(_XtProcessUnlock)(*_XtProcessUnlock)(); |
| 949 | UNLOCK_APP(app)if(app && app->unlock)(*app->unlock)(app); |
| 950 | } |
| 951 | |
| 952 | void XtNoticeSignal( |
| 953 | XtSignalId id) |
| 954 | { |
| 955 | /* |
| 956 | * It would be overkill to lock the app to set this flag. |
| 957 | * In the worst case, 2..n threads would be modifying this |
| 958 | * flag. The last one wins. Since signals occur asynchronously |
| 959 | * anyway, this can occur with or without threads. |
| 960 | * |
| 961 | * The other issue is that thread t1 sets the flag in a |
| 962 | * signalrec that has been deleted in thread t2. We rely |
| 963 | * on a detail of the implementation, i.e. free'd signalrecs |
| 964 | * aren't really free'd, they're just moved to a list of |
| 965 | * free recs, so deref'ing one won't hurt anything. |
| 966 | * |
| 967 | * Lastly, and perhaps most importantly, since POSIX threads |
| 968 | * says that the handling of asynchronous signals in a synchronous |
| 969 | * threads environment is undefined. Therefor it would be an |
| 970 | * error for both signals and threads to be in use in the same |
| 971 | * program. |
| 972 | */ |
| 973 | SignalEventRec *sid = (SignalEventRec*) id; |
| 974 | sid->se_notice = TRUE1; |
| 975 | } |
| 976 | |
| 977 | XtInputId XtAddInput( |
| 978 | int source, |
| 979 | XtPointer Condition, |
| 980 | XtInputCallbackProc proc, |
| 981 | XtPointer closure) |
| 982 | { |
| 983 | return XtAppAddInput(_XtDefaultAppContext(), |
| 984 | source, Condition, proc, closure); |
| 985 | } |
| 986 | |
| 987 | XtInputId XtAppAddInput( |
| 988 | XtAppContext app, |
| 989 | int source, |
| 990 | XtPointer Condition, |
| 991 | XtInputCallbackProc proc, |
| 992 | XtPointer closure) |
| 993 | { |
| 994 | InputEvent* sptr; |
| 995 | XtInputMask condition = (XtInputMask) Condition; |
| 996 | |
| 997 | LOCK_APP(app)if(app && app->lock)(*app->lock)(app); |
| 998 | if (!condition || |
| 999 | condition & ~(XtInputReadMask(1L<<0)|XtInputWriteMask(1L<<1)|XtInputExceptMask(1L<<2))) |
| 1000 | XtAppErrorMsg(app,"invalidParameter","xtAddInput",XtCXtToolkitError, |
| 1001 | "invalid condition passed to XtAppAddInput", |
| 1002 | (String *)NULL((void*)0), (Cardinal *)NULL((void*)0)); |
| 1003 | |
| 1004 | if (app->input_max <= source) { |
| 1005 | Cardinal n = source + 1; |
| 1006 | int ii; |
| 1007 | app->input_list = (InputEvent**)XtRealloc((char*) app->input_list, |
| 1008 | n * sizeof(InputEvent*)); |
| 1009 | for (ii = app->input_max; ii < (int) n; ii++) |
| 1010 | app->input_list[ii] = (InputEvent*) NULL((void*)0); |
| 1011 | app->input_max = n; |
| 1012 | } |
| 1013 | sptr = XtNew(InputEvent)((InputEvent *) XtMalloc((unsigned) sizeof(InputEvent))); |
| 1014 | sptr->ie_proc = proc; |
| 1015 | sptr->ie_closure = closure; |
| 1016 | sptr->app = app; |
| 1017 | sptr->ie_oq = NULL((void*)0); |
| 1018 | sptr->ie_source = source; |
| 1019 | sptr->ie_condition = condition; |
| 1020 | sptr->ie_next = app->input_list[source]; |
| 1021 | app->input_list[source] = sptr; |
| 1022 | |
| 1023 | #ifndef USE_POLL1 |
| 1024 | if (condition & XtInputReadMask(1L<<0)) FD_SET(source, &app->fds.rmask)((void) (((&app->fds.rmask)->fds_bits)[((source) / ( 8 * (int) sizeof (__fd_mask)))] |= ((__fd_mask) 1 << (( source) % (8 * (int) sizeof (__fd_mask)))))); |
| 1025 | if (condition & XtInputWriteMask(1L<<1)) FD_SET(source, &app->fds.wmask)((void) (((&app->fds.wmask)->fds_bits)[((source) / ( 8 * (int) sizeof (__fd_mask)))] |= ((__fd_mask) 1 << (( source) % (8 * (int) sizeof (__fd_mask)))))); |
| 1026 | if (condition & XtInputExceptMask(1L<<2)) FD_SET(source, &app->fds.emask)((void) (((&app->fds.emask)->fds_bits)[((source) / ( 8 * (int) sizeof (__fd_mask)))] |= ((__fd_mask) 1 << (( source) % (8 * (int) sizeof (__fd_mask)))))); |
| 1027 | |
| 1028 | if (app->fds.nfds < (source+1)) app->fds.nfds = source+1; |
| 1029 | #else |
| 1030 | if (sptr->ie_next == NULL((void*)0)) |
| 1031 | app->fds.nfds++; |
| 1032 | #endif |
| 1033 | app->input_count++; |
| 1034 | app->rebuild_fdlist = TRUE1; |
| 1035 | UNLOCK_APP(app)if(app && app->unlock)(*app->unlock)(app); |
| 1036 | return((XtInputId)sptr); |
| 1037 | } |
| 1038 | |
| 1039 | void XtRemoveInput( |
| 1040 | register XtInputId id) |
| 1041 | { |
| 1042 | register InputEvent *sptr, *lptr; |
| 1043 | XtAppContext app = ((InputEvent *)id)->app; |
| 1044 | register int source = ((InputEvent *)id)->ie_source; |
| 1045 | Boolean found = False0; |
| 1046 | |
| 1047 | LOCK_APP(app)if(app && app->lock)(*app->lock)(app); |
| 1048 | sptr = app->outstandingQueue; |
| 1049 | lptr = NULL((void*)0); |
| 1050 | for (; sptr != NULL((void*)0); sptr = sptr->ie_oq) { |
| 1051 | if (sptr == (InputEvent *)id) { |
| 1052 | if (lptr == NULL((void*)0)) app->outstandingQueue = sptr->ie_oq; |
| 1053 | else lptr->ie_oq = sptr->ie_oq; |
| 1054 | } |
| 1055 | lptr = sptr; |
| 1056 | } |
| 1057 | |
| 1058 | if(app->input_list && (sptr = app->input_list[source]) != NULL((void*)0)) { |
| 1059 | for( lptr = NULL((void*)0) ; sptr; sptr = sptr->ie_next ){ |
| 1060 | if(sptr == (InputEvent *) id) { |
| 1061 | #ifndef USE_POLL1 |
| 1062 | XtInputMask condition = 0; |
| 1063 | #endif |
| 1064 | if(lptr == NULL((void*)0)) { |
| 1065 | app->input_list[source] = sptr->ie_next; |
| 1066 | } else { |
| 1067 | lptr->ie_next = sptr->ie_next; |
| 1068 | } |
| 1069 | #ifndef USE_POLL1 |
| 1070 | for (lptr = app->input_list[source]; |
| 1071 | lptr; lptr = lptr->ie_next) |
| 1072 | condition |= lptr->ie_condition; |
| 1073 | if ((sptr->ie_condition & XtInputReadMask(1L<<0)) && |
| 1074 | !(condition & XtInputReadMask(1L<<0))) |
| 1075 | FD_CLR(source, &app->fds.rmask)((void) (((&app->fds.rmask)->fds_bits)[((source) / ( 8 * (int) sizeof (__fd_mask)))] &= ~((__fd_mask) 1 << ((source) % (8 * (int) sizeof (__fd_mask)))))); |
| 1076 | if ((sptr->ie_condition & XtInputWriteMask(1L<<1)) && |
| 1077 | !(condition & XtInputWriteMask(1L<<1))) |
| 1078 | FD_CLR(source, &app->fds.wmask)((void) (((&app->fds.wmask)->fds_bits)[((source) / ( 8 * (int) sizeof (__fd_mask)))] &= ~((__fd_mask) 1 << ((source) % (8 * (int) sizeof (__fd_mask)))))); |
| 1079 | if ((sptr->ie_condition & XtInputExceptMask(1L<<2)) && |
| 1080 | !(condition & XtInputExceptMask(1L<<2))) |
| 1081 | FD_CLR(source, &app->fds.emask)((void) (((&app->fds.emask)->fds_bits)[((source) / ( 8 * (int) sizeof (__fd_mask)))] &= ~((__fd_mask) 1 << ((source) % (8 * (int) sizeof (__fd_mask)))))); |
| 1082 | #endif |
| 1083 | XtFree((char *) sptr); |
| 1084 | found = True1; |
| 1085 | break; |
| 1086 | } |
| 1087 | lptr = sptr; |
| 1088 | } |
| 1089 | } |
| 1090 | |
| 1091 | if (found) { |
| 1092 | app->input_count--; |
| 1093 | #ifdef USE_POLL1 |
| 1094 | if (app->input_list[source] == NULL((void*)0)) |
| 1095 | app->fds.nfds--; |
| 1096 | #endif |
| 1097 | app->rebuild_fdlist = TRUE1; |
| 1098 | } else |
| 1099 | XtAppWarningMsg(app, "invalidProcedure","inputHandler", |
| 1100 | XtCXtToolkitError, |
| 1101 | "XtRemoveInput: Input handler not found", |
| 1102 | (String *)NULL((void*)0), (Cardinal *)NULL((void*)0)); |
| 1103 | UNLOCK_APP(app)if(app && app->unlock)(*app->unlock)(app); |
| 1104 | } |
| 1105 | |
| 1106 | void _XtRemoveAllInputs( |
| 1107 | XtAppContext app) |
| 1108 | { |
| 1109 | int i; |
| 1110 | for (i = 0; i < app->input_max; i++) { |
| 1111 | InputEvent* ep = app->input_list[i]; |
| 1112 | while (ep) { |
| 1113 | InputEvent *next = ep->ie_next; |
| 1114 | XtFree( (char*)ep ); |
| 1115 | ep = next; |
| 1116 | } |
| 1117 | } |
| 1118 | XtFree((char *) app->input_list); |
| 1119 | } |
| 1120 | |
| 1121 | /* Do alternate input and timer callbacks if there are any */ |
| 1122 | |
| 1123 | static void DoOtherSources( |
| 1124 | XtAppContext app) |
| 1125 | { |
| 1126 | TimerEventRec *te_ptr; |
| 1127 | InputEvent *ie_ptr; |
| 1128 | struct timeval cur_time; |
| 1129 | |
| 1130 | #define DrainQueue() \ |
| 1131 | for (ie_ptr = app->outstandingQueue; ie_ptr != NULL((void*)0);) { \ |
| 1132 | app->outstandingQueue = ie_ptr->ie_oq; \ |
| 1133 | ie_ptr ->ie_oq = NULL((void*)0); \ |
| 1134 | IeCallProc(ie_ptr)(*ie_ptr->ie_proc) (ie_ptr->ie_closure, &ie_ptr-> ie_source, (XtInputId*)&ie_ptr);; \ |
| 1135 | ie_ptr = app->outstandingQueue; \ |
| 1136 | } |
| 1137 | /*enddef*/ |
| 1138 | DrainQueue(); |
| 1139 | if (app->input_count > 0) { |
| 1140 | /* Call _XtWaitForSomething to get input queued up */ |
| 1141 | (void) _XtWaitForSomething (app, |
| 1142 | TRUE1, TRUE1, FALSE0, TRUE1, |
| 1143 | FALSE0, |
| 1144 | #ifdef XTHREADS1 |
| 1145 | TRUE1, |
| 1146 | #endif |
| 1147 | (unsigned long *)NULL((void*)0)); |
| 1148 | DrainQueue(); |
| 1149 | } |
| 1150 | if (app->timerQueue != NULL((void*)0)) { /* check timeout queue */ |
| 1151 | X_GETTIMEOFDAY (&cur_time)gettimeofday(&cur_time, (struct timezone*)0); |
| 1152 | FIXUP_TIMEVAL(cur_time); |
| 1153 | while(IS_AT_OR_AFTER (app->timerQueue->te_timer_value, cur_time)(((cur_time).tv_sec > (app->timerQueue->te_timer_value ).tv_sec) || (((cur_time).tv_sec == (app->timerQueue->te_timer_value ).tv_sec)&& ((cur_time).tv_usec >= (app->timerQueue ->te_timer_value).tv_usec)))) { |
| 1154 | te_ptr = app->timerQueue; |
| 1155 | app->timerQueue = te_ptr->te_next; |
| 1156 | te_ptr->te_next = NULL((void*)0); |
| 1157 | if (te_ptr->te_proc != NULL((void*)0)) |
| 1158 | TeCallProc(te_ptr)(*te_ptr->te_proc) (te_ptr->te_closure, (XtIntervalId*) &te_ptr);; |
| 1159 | LOCK_PROCESSif(_XtProcessLock)(*_XtProcessLock)(); |
| 1160 | te_ptr->te_next = freeTimerRecs; |
| 1161 | freeTimerRecs = te_ptr; |
| 1162 | UNLOCK_PROCESSif(_XtProcessUnlock)(*_XtProcessUnlock)(); |
| 1163 | if (app->timerQueue == NULL((void*)0)) break; |
| 1164 | } |
| 1165 | } |
| 1166 | if (app->signalQueue != NULL((void*)0)) { |
| 1167 | SignalEventRec *se_ptr = app->signalQueue; |
| 1168 | while (se_ptr != NULL((void*)0)) { |
| 1169 | if (se_ptr->se_notice) { |
| 1170 | se_ptr->se_notice = FALSE0; |
| 1171 | if (se_ptr->se_proc != NULL((void*)0)) |
| 1172 | SeCallProc(se_ptr)(*se_ptr->se_proc) (se_ptr->se_closure, (XtSignalId*)& se_ptr);; |
| 1173 | } |
| 1174 | se_ptr = se_ptr->se_next; |
| 1175 | } |
| 1176 | } |
| 1177 | #undef DrainQueue |
| 1178 | } |
| 1179 | |
| 1180 | /* If there are any work procs, call them. Return whether we did so */ |
| 1181 | |
| 1182 | static Boolean CallWorkProc( |
| 1183 | XtAppContext app) |
| 1184 | { |
| 1185 | register WorkProcRec *w = app->workQueue; |
| 1186 | Boolean delete; |
| 1187 | |
| 1188 | if (w == NULL((void*)0)) return FALSE0; |
| 1189 | |
| 1190 | app->workQueue = w->next; |
| 1191 | |
| 1192 | delete = (*(w->proc)) (w->closure); |
| 1193 | |
| 1194 | if (delete) { |
| 1195 | LOCK_PROCESSif(_XtProcessLock)(*_XtProcessLock)(); |
| 1196 | w->next = freeWorkRecs; |
| 1197 | freeWorkRecs = w; |
| 1198 | UNLOCK_PROCESSif(_XtProcessUnlock)(*_XtProcessUnlock)(); |
| 1199 | } |
| 1200 | else { |
| 1201 | w->next = app->workQueue; |
| 1202 | app->workQueue = w; |
| 1203 | } |
| 1204 | return TRUE1; |
| 1205 | } |
| 1206 | |
| 1207 | /* |
| 1208 | * XtNextEvent() |
| 1209 | * return next event; |
| 1210 | */ |
| 1211 | |
| 1212 | void XtNextEvent( |
| 1213 | XEvent *event) |
| 1214 | { |
| 1215 | XtAppNextEvent(_XtDefaultAppContext(), event); |
| 1216 | } |
| 1217 | |
| 1218 | void _XtRefreshMapping( |
| 1219 | XEvent* event, |
| 1220 | _XtBooleanBoolean dispatch) |
| 1221 | { |
| 1222 | XtPerDisplay pd; |
| 1223 | |
| 1224 | LOCK_PROCESSif(_XtProcessLock)(*_XtProcessLock)(); |
| 1225 | pd = _XtGetPerDisplay(event->xmapping.display); |
| 1226 | if (event->xmapping.request != MappingPointer2 && |
| 1227 | pd && pd->keysyms && (event->xmapping.serial >= pd->keysyms_serial)) |
| 1228 | _XtBuildKeysymTables( event->xmapping.display, pd ); |
| 1229 | XRefreshKeyboardMapping(&event->xmapping); |
| 1230 | if (dispatch && pd && pd->mapping_callbacks) |
| 1231 | XtCallCallbackList((Widget) NULL((void*)0), |
| 1232 | (XtCallbackList)pd->mapping_callbacks, |
| 1233 | (XtPointer)event ); |
| 1234 | UNLOCK_PROCESSif(_XtProcessUnlock)(*_XtProcessUnlock)(); |
| 1235 | } |
| 1236 | |
| 1237 | void XtAppNextEvent( |
| 1238 | XtAppContext app, |
| 1239 | XEvent *event) |
| 1240 | { |
| 1241 | int i, d; |
| 1242 | |
| 1243 | LOCK_APP(app)if(app && app->lock)(*app->lock)(app); |
| 1244 | for (;;) { |
| 1245 | if (app->count == 0) |
| 1246 | DoOtherSources(app); |
| 1247 | else { |
| 1248 | for (i = 1; i <= app->count; i++) { |
| 1249 | d = (i + app->last) % app->count; |
| 1250 | if (d == 0) DoOtherSources(app); |
| 1251 | if (XEventsQueued(app->list[d], QueuedAfterReading1)) |
| 1252 | goto GotEvent; |
| 1253 | } |
| 1254 | for (i = 1; i <= app->count; i++) { |
| 1255 | d = (i + app->last) % app->count; |
| 1256 | if (XEventsQueued(app->list[d], QueuedAfterFlush2)) |
| 1257 | goto GotEvent; |
| 1258 | } |
| 1259 | } |
| 1260 | |
| 1261 | /* We're ready to wait...if there is a work proc, call it */ |
| 1262 | if (CallWorkProc(app)) continue; |
| 1263 | |
| 1264 | d = _XtWaitForSomething (app, |
| 1265 | FALSE0, FALSE0, FALSE0, FALSE0, |
| 1266 | TRUE1, |
| 1267 | #ifdef XTHREADS1 |
| 1268 | TRUE1, |
| 1269 | #endif |
| 1270 | (unsigned long *) NULL((void*)0)); |
| 1271 | |
| 1272 | if (d != -1) { |
| 1273 | GotEvent: |
| 1274 | XNextEvent (app->list[d], event); |
| 1275 | #ifdef XTHREADS1 |
| 1276 | /* assert(app->list[d] == event->xany.display); */ |
| 1277 | #endif |
| 1278 | app->last = d; |
| 1279 | if (event->xany.type == MappingNotify34) |
| 1280 | _XtRefreshMapping(event, False0); |
| 1281 | UNLOCK_APP(app)if(app && app->unlock)(*app->unlock)(app); |
| 1282 | return; |
| 1283 | } |
| 1284 | |
| 1285 | } /* for */ |
| 1286 | } |
| 1287 | |
| 1288 | void XtProcessEvent( |
| 1289 | XtInputMask mask) |
| 1290 | { |
| 1291 | XtAppProcessEvent(_XtDefaultAppContext(), mask); |
| 1292 | } |
| 1293 | |
| 1294 | void XtAppProcessEvent( |
| 1295 | XtAppContext app, |
| 1296 | XtInputMask mask) |
| 1297 | { |
| 1298 | int i, d; |
| 1299 | XEvent event; |
| 1300 | struct timeval cur_time; |
| 1301 | |
| 1302 | LOCK_APP(app)if(app && app->lock)(*app->lock)(app); |
| 1303 | if (mask == 0) { |
| 1304 | UNLOCK_APP(app)if(app && app->unlock)(*app->unlock)(app); |
| 1305 | return; |
| 1306 | } |
| 1307 | |
| 1308 | for (;;) { |
| 1309 | |
| 1310 | if (mask & XtIMSignal8 && app->signalQueue != NULL((void*)0)) { |
| 1311 | SignalEventRec *se_ptr = app->signalQueue; |
| 1312 | while (se_ptr != NULL((void*)0)) { |
| 1313 | if (se_ptr->se_notice) { |
| 1314 | se_ptr->se_notice = FALSE0; |
| 1315 | SeCallProc(se_ptr)(*se_ptr->se_proc) (se_ptr->se_closure, (XtSignalId*)& se_ptr);; |
| 1316 | UNLOCK_APP(app)if(app && app->unlock)(*app->unlock)(app); |
| 1317 | return; |
| 1318 | } |
| 1319 | se_ptr = se_ptr->se_next; |
| 1320 | } |
| 1321 | } |
| 1322 | |
| 1323 | if (mask & XtIMTimer2 && app->timerQueue != NULL((void*)0)) { |
| 1324 | X_GETTIMEOFDAY (&cur_time)gettimeofday(&cur_time, (struct timezone*)0); |
| 1325 | FIXUP_TIMEVAL(cur_time); |
| 1326 | if (IS_AT_OR_AFTER(app->timerQueue->te_timer_value, cur_time)(((cur_time).tv_sec > (app->timerQueue->te_timer_value ).tv_sec) || (((cur_time).tv_sec == (app->timerQueue->te_timer_value ).tv_sec)&& ((cur_time).tv_usec >= (app->timerQueue ->te_timer_value).tv_usec)))){ |
| 1327 | TimerEventRec *te_ptr = app->timerQueue; |
| 1328 | app->timerQueue = app->timerQueue->te_next; |
| 1329 | te_ptr->te_next = NULL((void*)0); |
| 1330 | if (te_ptr->te_proc != NULL((void*)0)) |
| 1331 | TeCallProc(te_ptr)(*te_ptr->te_proc) (te_ptr->te_closure, (XtIntervalId*) &te_ptr);; |
| 1332 | LOCK_PROCESSif(_XtProcessLock)(*_XtProcessLock)(); |
| 1333 | te_ptr->te_next = freeTimerRecs; |
| 1334 | freeTimerRecs = te_ptr; |
| 1335 | UNLOCK_PROCESSif(_XtProcessUnlock)(*_XtProcessUnlock)(); |
| 1336 | UNLOCK_APP(app)if(app && app->unlock)(*app->unlock)(app); |
| 1337 | return; |
| 1338 | } |
| 1339 | } |
| 1340 | |
| 1341 | if (mask & XtIMAlternateInput4) { |
| 1342 | if (app->input_count > 0 && app->outstandingQueue == NULL((void*)0)) { |
| 1343 | /* Call _XtWaitForSomething to get input queued up */ |
| 1344 | (void) _XtWaitForSomething (app, |
| 1345 | TRUE1, TRUE1, FALSE0, TRUE1, |
| 1346 | FALSE0, |
| 1347 | #ifdef XTHREADS1 |
| 1348 | TRUE1, |
| 1349 | #endif |
| 1350 | (unsigned long *)NULL((void*)0)); |
| 1351 | } |
| 1352 | if (app->outstandingQueue != NULL((void*)0)) { |
| 1353 | InputEvent *ie_ptr = app->outstandingQueue; |
| 1354 | app->outstandingQueue = ie_ptr->ie_oq; |
| 1355 | ie_ptr->ie_oq = NULL((void*)0); |
| 1356 | IeCallProc(ie_ptr)(*ie_ptr->ie_proc) (ie_ptr->ie_closure, &ie_ptr-> ie_source, (XtInputId*)&ie_ptr);; |
| 1357 | UNLOCK_APP(app)if(app && app->unlock)(*app->unlock)(app); |
| 1358 | return; |
| 1359 | } |
| 1360 | } |
| 1361 | |
| 1362 | if (mask & XtIMXEvent1) { |
| 1363 | for (i = 1; i <= app->count; i++) { |
| 1364 | d = (i + app->last) % app->count; |
| 1365 | if (XEventsQueued(app->list[d], QueuedAfterReading1)) |
| 1366 | goto GotEvent; |
| 1367 | } |
| 1368 | for (i = 1; i <= app->count; i++) { |
| 1369 | d = (i + app->last) % app->count; |
| 1370 | if (XEventsQueued(app->list[d], QueuedAfterFlush2)) |
| 1371 | goto GotEvent; |
| 1372 | } |
| 1373 | } |
| 1374 | |
| 1375 | /* Nothing to do...wait for something */ |
| 1376 | |
| 1377 | if (CallWorkProc(app)) continue; |
| 1378 | |
| 1379 | d = _XtWaitForSomething (app, |
| 1380 | (mask & XtIMXEvent1 ? FALSE0 : TRUE1), |
| 1381 | (mask & XtIMTimer2 ? FALSE0 : TRUE1), |
| 1382 | (mask & XtIMAlternateInput4 ? FALSE0 : TRUE1), |
| 1383 | (mask & XtIMSignal8 ? FALSE0 : TRUE1), |
| 1384 | TRUE1, |
| 1385 | #ifdef XTHREADS1 |
| 1386 | TRUE1, |
| 1387 | #endif |
| 1388 | (unsigned long *) NULL((void*)0)); |
| 1389 | |
| 1390 | if (mask & XtIMXEvent1 && d != -1) { |
| 1391 | GotEvent: |
| 1392 | XNextEvent(app->list[d], &event); |
| 1393 | #ifdef XTHREADS1 |
| 1394 | /* assert(app->list[d] == event.xany.display); */ |
| 1395 | #endif |
| 1396 | app->last = d; |
| 1397 | if (event.xany.type == MappingNotify34) { |
| 1398 | _XtRefreshMapping(&event, False0); |
| 1399 | } |
| 1400 | XtDispatchEvent(&event); |
| 1401 | UNLOCK_APP(app)if(app && app->unlock)(*app->unlock)(app); |
| 1402 | return; |
| 1403 | } |
| 1404 | |
| 1405 | } |
| 1406 | } |
| 1407 | |
| 1408 | Boolean XtPending(void) |
| 1409 | { |
| 1410 | return (XtAppPending(_XtDefaultAppContext()) != 0); |
| 1411 | } |
| 1412 | |
| 1413 | XtInputMask XtAppPending( |
| 1414 | XtAppContext app) |
| 1415 | { |
| 1416 | struct timeval cur_time; |
| 1417 | int d; |
| 1418 | XtInputMask ret = 0; |
| 1419 | |
| 1420 | /* |
| 1421 | * Check for pending X events |
| 1422 | */ |
| 1423 | LOCK_APP(app)if(app && app->lock)(*app->lock)(app); |
| 1424 | for (d = 0; d < app->count; d++) { |
Access to field 'count' results in a dereference of a null pointer (loaded from variable 'app') | |
| 1425 | if (XEventsQueued(app->list[d], QueuedAfterReading1)) { |
| 1426 | ret = XtIMXEvent1; |
| 1427 | break; |
| 1428 | } |
| 1429 | } |
| 1430 | if (ret == 0) { |
| 1431 | for (d = 0; d < app->count; d++) { |
| 1432 | if (XEventsQueued(app->list[d], QueuedAfterFlush2)) { |
| 1433 | ret = XtIMXEvent1; |
| 1434 | break; |
| 1435 | } |
| 1436 | } |
| 1437 | } |
| 1438 | |
| 1439 | if (app->signalQueue != NULL((void*)0)) { |
| 1440 | SignalEventRec *se_ptr = app->signalQueue; |
| 1441 | while (se_ptr != NULL((void*)0)) { |
| 1442 | if (se_ptr->se_notice) { |
| 1443 | ret |= XtIMSignal8; |
| 1444 | break; |
| 1445 | } |
| 1446 | se_ptr = se_ptr->se_next; |
| 1447 | } |
| 1448 | } |
| 1449 | |
| 1450 | /* |
| 1451 | * Check for pending alternate input |
| 1452 | */ |
| 1453 | if (app->timerQueue != NULL((void*)0)) { /* check timeout queue */ |
| 1454 | X_GETTIMEOFDAY (&cur_time)gettimeofday(&cur_time, (struct timezone*)0); |
| 1455 | FIXUP_TIMEVAL(cur_time); |
| 1456 | if ((IS_AT_OR_AFTER(app->timerQueue->te_timer_value, cur_time)(((cur_time).tv_sec > (app->timerQueue->te_timer_value ).tv_sec) || (((cur_time).tv_sec == (app->timerQueue->te_timer_value ).tv_sec)&& ((cur_time).tv_usec >= (app->timerQueue ->te_timer_value).tv_usec)))) && |
| 1457 | (app->timerQueue->te_proc != NULL((void*)0))) { |
| 1458 | ret |= XtIMTimer2; |
| 1459 | } |
| 1460 | } |
| 1461 | |
| 1462 | if (app->outstandingQueue != NULL((void*)0)) ret |= XtIMAlternateInput4; |
| 1463 | else { |
| 1464 | /* This won't cause a wait, but will enqueue any input */ |
| 1465 | |
| 1466 | if(_XtWaitForSomething (app, |
| 1467 | FALSE0, TRUE1, FALSE0, TRUE1, |
| 1468 | FALSE0, |
| 1469 | #ifdef XTHREADS1 |
| 1470 | TRUE1, |
| 1471 | #endif |
| 1472 | (unsigned long *) NULL((void*)0)) != -1) |
| 1473 | ret |= XtIMXEvent1; |
| 1474 | if (app->outstandingQueue != NULL((void*)0)) ret |= XtIMAlternateInput4; |
| 1475 | } |
| 1476 | UNLOCK_APP(app)if(app && app->unlock)(*app->unlock)(app); |
| 1477 | return ret; |
| 1478 | } |
| 1479 | |
| 1480 | /* Peek at alternate input and timer callbacks if there are any */ |
| 1481 | |
| 1482 | static Boolean PeekOtherSources( |
| 1483 | XtAppContext app) |
| 1484 | { |
| 1485 | struct timeval cur_time; |
| 1486 | |
| 1487 | if (app->outstandingQueue != NULL((void*)0)) return TRUE1; |
| 1488 | |
| 1489 | if (app->signalQueue != NULL((void*)0)) { |
| 1490 | SignalEventRec *se_ptr = app->signalQueue; |
| 1491 | while (se_ptr != NULL((void*)0)) { |
| 1492 | if (se_ptr->se_notice) |
| 1493 | return TRUE1; |
| 1494 | se_ptr = se_ptr->se_next; |
| 1495 | } |
| 1496 | } |
| 1497 | |
| 1498 | if (app->input_count > 0) { |
| 1499 | /* Call _XtWaitForSomething to get input queued up */ |
| 1500 | (void) _XtWaitForSomething (app, |
| 1501 | TRUE1, TRUE1, FALSE0, TRUE1, |
| 1502 | FALSE0, |
| 1503 | #ifdef XTHREADS1 |
| 1504 | TRUE1, |
| 1505 | #endif |
| 1506 | (unsigned long *)NULL((void*)0)); |
| 1507 | if (app->outstandingQueue != NULL((void*)0)) return TRUE1; |
| 1508 | } |
| 1509 | |
| 1510 | if (app->timerQueue != NULL((void*)0)) { /* check timeout queue */ |
| 1511 | X_GETTIMEOFDAY (&cur_time)gettimeofday(&cur_time, (struct timezone*)0); |
| 1512 | FIXUP_TIMEVAL(cur_time); |
| 1513 | if (IS_AT_OR_AFTER (app->timerQueue->te_timer_value, cur_time)(((cur_time).tv_sec > (app->timerQueue->te_timer_value ).tv_sec) || (((cur_time).tv_sec == (app->timerQueue->te_timer_value ).tv_sec)&& ((cur_time).tv_usec >= (app->timerQueue ->te_timer_value).tv_usec)))) |
| 1514 | return TRUE1; |
| 1515 | } |
| 1516 | |
| 1517 | return FALSE0; |
| 1518 | } |
| 1519 | |
| 1520 | Boolean XtPeekEvent( |
| 1521 | XEvent *event) |
| 1522 | { |
| 1523 | return XtAppPeekEvent(_XtDefaultAppContext(), event); |
| 1524 | } |
| 1525 | |
| 1526 | Boolean XtAppPeekEvent_SkipTimer; |
| 1527 | |
| 1528 | Boolean XtAppPeekEvent( |
| 1529 | XtAppContext app, |
| 1530 | XEvent *event) |
| 1531 | { |
| 1532 | int i, d; |
| 1533 | Boolean foundCall = FALSE0; |
| 1534 | |
| 1535 | LOCK_APP(app)if(app && app->lock)(*app->lock)(app); |
| 1536 | for (i = 1; i <= app->count; i++) { |
| 1537 | d = (i + app->last) % app->count; |
| 1538 | if (d == 0) foundCall = PeekOtherSources(app); |
| 1539 | if (XEventsQueued(app->list[d], QueuedAfterReading1)) |
| 1540 | goto GotEvent; |
| 1541 | } |
| 1542 | for (i = 1; i <= app->count; i++) { |
| 1543 | d = (i + app->last) % app->count; |
| 1544 | if (XEventsQueued(app->list[d], QueuedAfterFlush2)) |
| 1545 | goto GotEvent; |
| 1546 | } |
| 1547 | |
| 1548 | if (foundCall) { |
| 1549 | event->xany.type = 0; |
| 1550 | event->xany.display = NULL((void*)0); |
| 1551 | event->xany.window = 0; |
| 1552 | UNLOCK_APP(app)if(app && app->unlock)(*app->unlock)(app); |
| 1553 | return FALSE0; |
| 1554 | } |
| 1555 | |
| 1556 | while (1) { |
| 1557 | d = _XtWaitForSomething (app, |
| 1558 | FALSE0, FALSE0, FALSE0, FALSE0, |
| 1559 | TRUE1, |
| 1560 | #ifdef XTHREADS1 |
| 1561 | TRUE1, |
| 1562 | #endif |
| 1563 | (unsigned long *) NULL((void*)0)); |
| 1564 | |
| 1565 | if (d != -1) { /* event */ |
| 1566 | GotEvent: |
| 1567 | XPeekEvent(app->list[d], event); |
| 1568 | app->last = (d == 0 ? app->count : d) - 1; |
| 1569 | UNLOCK_APP(app)if(app && app->unlock)(*app->unlock)(app); |
| 1570 | return TRUE1; |
| 1571 | } |
| 1572 | else { /* input or timer or signal */ |
| 1573 | /* |
| 1574 | * Check to see why a -1 was returned, if a timer expired, |
| 1575 | * call it and block some more |
| 1576 | */ |
| 1577 | if ((app->timerQueue != NULL((void*)0)) && ! XtAppPeekEvent_SkipTimer) { /* timer */ |
| 1578 | struct timeval cur_time; |
| 1579 | Boolint did_timer = False0; |
| 1580 | |
| 1581 | X_GETTIMEOFDAY (&cur_time)gettimeofday(&cur_time, (struct timezone*)0); |
| 1582 | FIXUP_TIMEVAL(cur_time); |
| 1583 | while (IS_AT_OR_AFTER(app->timerQueue->te_timer_value, cur_time)(((cur_time).tv_sec > (app->timerQueue->te_timer_value ).tv_sec) || (((cur_time).tv_sec == (app->timerQueue->te_timer_value ).tv_sec)&& ((cur_time).tv_usec >= (app->timerQueue ->te_timer_value).tv_usec)))) { |
| 1584 | TimerEventRec *te_ptr = app->timerQueue; |
| 1585 | app->timerQueue = app->timerQueue->te_next; |
| 1586 | te_ptr->te_next = NULL((void*)0); |
| 1587 | if (te_ptr->te_proc != NULL((void*)0)) { |
| 1588 | TeCallProc(te_ptr)(*te_ptr->te_proc) (te_ptr->te_closure, (XtIntervalId*) &te_ptr);; |
| 1589 | did_timer = True1; |
| 1590 | } |
| 1591 | LOCK_PROCESSif(_XtProcessLock)(*_XtProcessLock)(); |
| 1592 | te_ptr->te_next = freeTimerRecs; |
| 1593 | freeTimerRecs = te_ptr; |
| 1594 | UNLOCK_PROCESSif(_XtProcessUnlock)(*_XtProcessUnlock)(); |
| 1595 | if (app->timerQueue == NULL((void*)0)) break; |
| 1596 | } |
| 1597 | if (did_timer) |
| 1598 | { |
| 1599 | for (d = 0; d < app->count; d++) |
| 1600 | /* the timer's procedure may have caused an event */ |
| 1601 | if (XEventsQueued(app->list[d], QueuedAfterFlush2)) { |
| 1602 | goto GotEvent; |
| 1603 | } |
| 1604 | continue; /* keep blocking */ |
| 1605 | } |
| 1606 | } |
| 1607 | /* |
| 1608 | * spec is vague here; we'll assume signals also return FALSE, |
| 1609 | * of course to determine whether a signal is pending requires |
| 1610 | * walking the signalQueue looking for se_notice flags which |
| 1611 | * this code doesn't do. |
| 1612 | */ |
| 1613 | #if 0 |
| 1614 | if (app->signalQueue != NULL((void*)0)) { /* signal */ |
| 1615 | event->xany.type = 0; |
| 1616 | event->xany.display = NULL((void*)0); |
| 1617 | event->xany.window = 0; |
| 1618 | UNLOCK_APP(app)if(app && app->unlock)(*app->unlock)(app); |
| 1619 | return FALSE0; |
| 1620 | } |
| 1621 | else |
| 1622 | #endif |
| 1623 | { /* input */ |
| 1624 | event->xany.type = 0; |
| 1625 | event->xany.display = NULL((void*)0); |
| 1626 | event->xany.window = 0; |
| 1627 | UNLOCK_APP(app)if(app && app->unlock)(*app->unlock)(app); |
| 1628 | return FALSE0; |
| 1629 | } |
| 1630 | } |
| 1631 | } /* end while */ |
| 1632 | } |