| 1 |
/* |
| 2 |
* Unit test functions for ASCEND: utilities/ascSignal.c |
| 3 |
* |
| 4 |
* Copyright (C) 2005 Jerry St.Clair |
| 5 |
* |
| 6 |
* This file is part of the Ascend Environment. |
| 7 |
* |
| 8 |
* The Ascend Environment is free software; you can redistribute it |
| 9 |
* and/or modify it under the terms of the GNU General Public License as |
| 10 |
* published by the Free Software Foundation; either version 2 of the |
| 11 |
* License, or (at your option) any later version. |
| 12 |
* |
| 13 |
* The Ascend Environment is distributed in hope that it will be useful, |
| 14 |
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 16 |
* General Public License for more details. |
| 17 |
* |
| 18 |
* You should have received a copy of the GNU General Public License |
| 19 |
* along with the program; if not, write to the Free Software Foundation, |
| 20 |
* Inc., 675 Mass Ave, Cambridge, MA 02139 USA. Check the file named |
| 21 |
* COPYING. |
| 22 |
*/ |
| 23 |
|
| 24 |
#include <stdio.h> |
| 25 |
#include <utilities/ascConfig.h> |
| 26 |
#ifdef __WIN32__ |
| 27 |
#include <io.h> |
| 28 |
#endif |
| 29 |
#include <utilities/ascMalloc.h> |
| 30 |
#include <utilities/ascSignal.h> |
| 31 |
#include <utilities/ascPanic.h> |
| 32 |
#include "CUnit/CUnit.h" |
| 33 |
#include "test_ascSignal.h" |
| 34 |
#include "printutil.h" |
| 35 |
|
| 36 |
static JMP_BUF my_jmp_buf1; |
| 37 |
|
| 38 |
#define MEMUSED(N) CU_TEST(ascmeminuse()==N) |
| 39 |
|
| 40 |
static int f_handler1_called; |
| 41 |
static int f_handler1_sigval; |
| 42 |
/* |
| 43 |
* Signal handler for unit tests. |
| 44 |
* Resets the signal handlers and sets f_handler1_called to |
| 45 |
* TRUE and f_handler1_sigval to the signal type code (-1 if |
| 46 |
* an unsupported sigval). Then longjmp's using |
| 47 |
* my_jmp_buf1 and the sigval. |
| 48 |
*/ |
| 49 |
void my_handler1(int sigval) |
| 50 |
{ |
| 51 |
f_handler1_called = TRUE; |
| 52 |
Asc_SignalRecover(FALSE); |
| 53 |
switch (sigval) |
| 54 |
{ |
| 55 |
case SIGFPE: |
| 56 |
f_handler1_sigval = SIGFPE; |
| 57 |
FPRESET; |
| 58 |
break; |
| 59 |
case SIGINT: |
| 60 |
f_handler1_sigval = SIGINT; |
| 61 |
break; |
| 62 |
case SIGSEGV: |
| 63 |
f_handler1_sigval = SIGSEGV; |
| 64 |
break; |
| 65 |
default: |
| 66 |
f_handler1_sigval = -1; |
| 67 |
break; |
| 68 |
} |
| 69 |
LONGJMP(my_jmp_buf1, sigval); |
| 70 |
} |
| 71 |
|
| 72 |
void wrong_handler(int sigval){ |
| 73 |
ASC_PANIC("Don't use this one"); |
| 74 |
} |
| 75 |
|
| 76 |
static JMP_BUF my_jmp_buf2; |
| 77 |
|
| 78 |
static int f_handler2_called; |
| 79 |
static int f_handler2_sigval; |
| 80 |
/* |
| 81 |
* Signal handler for unit tests. |
| 82 |
* Resets the signal handlers and sets f_handler1_called to |
| 83 |
* TRUE and f_handler1_sigval to the signal type code (-1 if |
| 84 |
* an unsupported sigval). Then longjmp's using |
| 85 |
* my_jmp_buf1 and the sigval. |
| 86 |
*/ |
| 87 |
void my_handler2(int sigval) |
| 88 |
{ |
| 89 |
f_handler2_called = TRUE; |
| 90 |
Asc_SignalRecover(FALSE); |
| 91 |
switch (sigval) |
| 92 |
{ |
| 93 |
case SIGFPE: |
| 94 |
f_handler2_sigval = SIGFPE; |
| 95 |
FPRESET; |
| 96 |
break; |
| 97 |
case SIGINT: |
| 98 |
f_handler2_sigval = SIGINT; |
| 99 |
break; |
| 100 |
case SIGSEGV: |
| 101 |
f_handler2_sigval = SIGSEGV; |
| 102 |
break; |
| 103 |
default: |
| 104 |
f_handler2_sigval = -1; |
| 105 |
break; |
| 106 |
} |
| 107 |
LONGJMP(my_jmp_buf2, sigval); |
| 108 |
} |
| 109 |
|
| 110 |
static int old_active = 0; |
| 111 |
static SigHandlerFn *old_fpe_handler = NULL; |
| 112 |
static SigHandlerFn *old_int_handler = NULL; |
| 113 |
static SigHandlerFn *old_seg_handler = NULL; |
| 114 |
|
| 115 |
static void store_current_signals(void){ |
| 116 |
CU_TEST(old_active==0); |
| 117 |
old_active = 1; |
| 118 |
old_fpe_handler = SIGNAL(SIGFPE, my_handler1); /* save any pre-existing handlers */ |
| 119 |
old_int_handler = SIGNAL(SIGINT, my_handler1); |
| 120 |
old_seg_handler = SIGNAL(SIGSEGV, my_handler1); |
| 121 |
} |
| 122 |
|
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#define CHECK_SIGNALS_MATCH_STACKS(FPEFN,INTFN,SEGFN) \ |
| 124 |
{ SigHandlerFn *oldfpe, *oldint, *oldseg; \ |
| 125 |
oldfpe = signal(SIGFPE,SIG_IGN);\ |
| 126 |
CU_TEST(oldfpe == FPEFN);\ |
| 127 |
CU_TEST(Asc_SignalStackTop(SIGFPE)==FPEFN);\ |
| 128 |
oldfpe = signal(SIGFPE,oldfpe);\ |
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\ |
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oldint = signal(SIGINT,SIG_IGN);\ |
| 131 |
CU_TEST(oldint == INTFN);\ |
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CU_TEST(Asc_SignalStackTop(SIGINT)==INTFN);\ |
| 133 |
oldint = signal(SIGINT,oldint);\ |
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\ |
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oldseg = signal(SIGSEGV,SIG_IGN);\ |
| 136 |
CU_TEST(oldseg == SEGFN);\ |
| 137 |
CU_TEST(Asc_SignalStackTop(SIGSEGV)==SEGFN);\ |
| 138 |
oldseg = signal(SIGSEGV,oldseg);\ |
| 139 |
} |
| 140 |
|
| 141 |
static void restore_previous_signals(void){ |
| 142 |
CU_TEST(old_active==1); |
| 143 |
if (NULL != old_fpe_handler) /* restore any pre-existing handlers */ |
| 144 |
SIGNAL(SIGFPE, old_fpe_handler); |
| 145 |
if (NULL != old_int_handler) |
| 146 |
SIGNAL(SIGINT, old_int_handler); |
| 147 |
if (NULL != old_seg_handler) |
| 148 |
SIGNAL(SIGSEGV, old_seg_handler); |
| 149 |
old_active = 0; |
| 150 |
} |
| 151 |
|
| 152 |
/*----------------------------------------*/ |
| 153 |
|
| 154 |
static void test_ascsignal_basic(void){ |
| 155 |
|
| 156 |
SigHandlerFn *old_handler; |
| 157 |
volatile int signal1_caught; |
| 158 |
|
| 159 |
#ifdef NO_SIGNAL_TRAPS |
| 160 |
/* no point in testing if the functionality is disabled */ |
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CU_FAIL("Signal handler manager not enabled."); |
| 162 |
return; |
| 163 |
#else |
| 164 |
|
| 165 |
CONSOLE_DEBUG("SIGFPE = %d",SIGFPE); |
| 166 |
CONSOLE_DEBUG("SIGINT = %d",SIGINT); |
| 167 |
CONSOLE_DEBUG("SIGSEGV= %d",SIGSEGV); |
| 168 |
|
| 169 |
store_current_signals(); |
| 170 |
|
| 171 |
SIGNAL(SIGFPE, my_handler1); /* install some pre-existing handlers */ |
| 172 |
SIGNAL(SIGINT, SIG_DFL); |
| 173 |
SIGNAL(SIGSEGV, my_handler2); |
| 174 |
|
| 175 |
/* Asc_SignalInit(), Asc_SignalDestroy() - not much to test */ |
| 176 |
|
| 177 |
CU_TEST(0 == Asc_SignalInit()); /* initialize the signal manager */ |
| 178 |
|
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CHECK_SIGNALS_MATCH_STACKS(my_handler1, NULL, my_handler2); |
| 180 |
|
| 181 |
/* mix up the current handlers */ |
| 182 |
SIGNAL(SIGFPE, my_handler2); |
| 183 |
SIGNAL(SIGINT, SIG_IGN); |
| 184 |
SIGNAL(SIGSEGV, my_handler1); |
| 185 |
|
| 186 |
Asc_SignalRecover(TRUE); |
| 187 |
|
| 188 |
/* check that recovery worked; check that repeated calls don't damage it */ |
| 189 |
CHECK_SIGNALS_MATCH_STACKS(my_handler1, NULL, my_handler2); |
| 190 |
CHECK_SIGNALS_MATCH_STACKS(my_handler1, NULL, my_handler2); |
| 191 |
CHECK_SIGNALS_MATCH_STACKS(my_handler1, NULL, my_handler2); |
| 192 |
|
| 193 |
restore_previous_signals(); |
| 194 |
Asc_SignalDestroy(); |
| 195 |
MEMUSED(0); |
| 196 |
} |
| 197 |
|
| 198 |
/*----------------------------------------*/ |
| 199 |
|
| 200 |
static void test_ascsignal_pushpopint(void){ |
| 201 |
SigHandlerFn *old_handler; |
| 202 |
volatile int signal1_caught; |
| 203 |
|
| 204 |
store_current_signals(); |
| 205 |
|
| 206 |
SIGNAL(SIGINT, SIG_IGN); |
| 207 |
CU_TEST(0==Asc_SignalInit()); |
| 208 |
|
| 209 |
CU_TEST(Asc_SignalStackLength(SIGINT)==1); |
| 210 |
|
| 211 |
CU_TEST(0==Asc_SignalHandlerPush(SIGINT, my_handler1)); /* ok - supported signal, ok func */ |
| 212 |
CU_TEST(Asc_SignalStackLength(SIGINT)==2); |
| 213 |
|
| 214 |
CONSOLE_DEBUG("Stack should have my_handler1..."); |
| 215 |
Asc_SignalPrintStack(SIGINT); |
| 216 |
|
| 217 |
old_handler = SIGNAL(SIGINT, SIG_DFL); |
| 218 |
CU_TEST(old_handler == my_handler1); |
| 219 |
|
| 220 |
CU_TEST(0 != Asc_SignalHandlerPush(SIGILL, Asc_SignalTrap)); /* unsupported signal type */ |
| 221 |
CU_TEST(0 != Asc_SignalHandlerPush(SIGABRT, my_handler2)); /* unsupported signal type */ |
| 222 |
Asc_SignalRecover(TRUE); |
| 223 |
CU_TEST(Asc_SignalStackLength(SIGINT)==2); |
| 224 |
|
| 225 |
old_handler = SIGNAL(SIGINT, SIG_DFL); |
| 226 |
CU_TEST(old_handler == my_handler1); |
| 227 |
|
| 228 |
Asc_SignalRecover(TRUE); |
| 229 |
CU_TEST(0 == Asc_SignalHandlerPop(SIGINT, my_handler1)); |
| 230 |
CU_TEST(Asc_SignalStackLength(SIGINT)==1); |
| 231 |
|
| 232 |
old_handler = SIGNAL(SIGINT, SIG_DFL); |
| 233 |
CU_TEST(old_handler == SIG_IGN); |
| 234 |
|
| 235 |
Asc_SignalRecover(TRUE); |
| 236 |
CU_TEST(Asc_SignalStackLength(SIGINT)==1); |
| 237 |
|
| 238 |
old_handler = SIGNAL(SIGINT, SIG_DFL); |
| 239 |
CU_TEST(SIG_IGN == old_handler); |
| 240 |
|
| 241 |
Asc_SignalRecover(TRUE); |
| 242 |
|
| 243 |
old_handler = SIGNAL(SIGINT, SIG_DFL); |
| 244 |
CU_TEST(SIG_IGN == old_handler); |
| 245 |
Asc_SignalRecover(TRUE); |
| 246 |
|
| 247 |
CU_TEST(0 != Asc_SignalHandlerPop(SIGILL, my_handler1)); /* unsupported signal type */ |
| 248 |
CU_TEST(0 != Asc_SignalHandlerPop(SIGABRT, Asc_SignalTrap)); /* unsupported signal type */ |
| 249 |
|
| 250 |
old_handler = SIGNAL(SIGINT, SIG_DFL); |
| 251 |
CU_TEST(SIG_IGN == old_handler); |
| 252 |
|
| 253 |
restore_previous_signals(); |
| 254 |
Asc_SignalDestroy(); |
| 255 |
MEMUSED(0); |
| 256 |
} |
| 257 |
|
| 258 |
/*----------------------------------------*/ |
| 259 |
|
| 260 |
static void test_ascsignal_pushpop(void){ |
| 261 |
SigHandlerFn *old_handler; |
| 262 |
volatile int signal1_caught; |
| 263 |
|
| 264 |
CONSOLE_DEBUG("my_handler1 = %p",my_handler1); |
| 265 |
CONSOLE_DEBUG("my_handler2 = %p",my_handler2); |
| 266 |
CONSOLE_DEBUG("Asc_SignalTrap = %p",Asc_SignalTrap); |
| 267 |
|
| 268 |
store_current_signals(); |
| 269 |
|
| 270 |
/* set the initial handlers */ |
| 271 |
SIGNAL(SIGFPE, my_handler1); |
| 272 |
SIGNAL(SIGINT, SIG_IGN); |
| 273 |
SIGNAL(SIGSEGV, my_handler2); |
| 274 |
|
| 275 |
/* initialise the stack */ |
| 276 |
CU_TEST(0 == Asc_SignalInit()); |
| 277 |
|
| 278 |
CHECK_SIGNALS_MATCH_STACKS(my_handler1, SIG_IGN, my_handler2); |
| 279 |
|
| 280 |
/* check that initial handlers were pushed onto the stack */ |
| 281 |
CU_TEST(Asc_SignalStackLength(SIGSEGV)==1); |
| 282 |
CU_TEST(Asc_SignalStackLength(SIGFPE)==1); |
| 283 |
CU_TEST(Asc_SignalStackLength(SIGINT)==1); |
| 284 |
|
| 285 |
/* push an additional handler onto SIGFPE stack */ |
| 286 |
CU_TEST(0 == Asc_SignalHandlerPush(SIGFPE, Asc_SignalTrap)); |
| 287 |
|
| 288 |
CHECK_SIGNALS_MATCH_STACKS(Asc_SignalTrap, SIG_IGN, my_handler2); |
| 289 |
|
| 290 |
CONSOLE_DEBUG("SIGFPE stack:"); |
| 291 |
Asc_SignalPrintStack(SIGFPE); |
| 292 |
|
| 293 |
/* push an additional handler onto SIGINT stack */ |
| 294 |
CU_TEST(0 == Asc_SignalHandlerPush(SIGINT, my_handler1)); |
| 295 |
|
| 296 |
/* check the stacks */ |
| 297 |
CHECK_SIGNALS_MATCH_STACKS(Asc_SignalTrap, my_handler1, my_handler2); |
| 298 |
CU_TEST(Asc_SignalStackLength(SIGSEGV)==1); /* my_handler2 */ |
| 299 |
CU_TEST(Asc_SignalStackLength(SIGINT)==2); /* SIG_IGN, my_handler1 */ |
| 300 |
CU_TEST(Asc_SignalStackLength(SIGFPE)==2); /* my_handler1, Asc_SignalTrap */ |
| 301 |
|
| 302 |
CONSOLE_DEBUG("SIGFPE stack:"); |
| 303 |
Asc_SignalPrintStack(SIGFPE); |
| 304 |
|
| 305 |
/* attempt to push a NULL handler should have no effect */ |
| 306 |
CU_TEST(0 == Asc_SignalHandlerPush(SIGSEGV, NULL)); |
| 307 |
CHECK_SIGNALS_MATCH_STACKS(Asc_SignalTrap, my_handler1, my_handler2); |
| 308 |
CU_TEST(Asc_SignalStackLength(SIGSEGV)==1); |
| 309 |
CU_TEST(Asc_SignalStackLength(SIGINT)==2); |
| 310 |
CU_TEST(Asc_SignalStackLength(SIGFPE)==2); |
| 311 |
CHECK_SIGNALS_MATCH_STACKS(Asc_SignalTrap, my_handler1, my_handler2); |
| 312 |
|
| 313 |
CONSOLE_DEBUG("SIGFPE stack:"); |
| 314 |
Asc_SignalPrintStack(SIGFPE); |
| 315 |
CHECK_SIGNALS_MATCH_STACKS(Asc_SignalTrap, my_handler1, my_handler2); |
| 316 |
|
| 317 |
/* attempt to push handler for unsupported signal types should have no effect, should return error */ |
| 318 |
CU_TEST(0 != Asc_SignalHandlerPush(SIGILL, Asc_SignalTrap)); |
| 319 |
CU_TEST(0 != Asc_SignalHandlerPush(SIGABRT, my_handler2)); |
| 320 |
CHECK_SIGNALS_MATCH_STACKS(Asc_SignalTrap, my_handler1, my_handler2); |
| 321 |
CU_TEST(Asc_SignalStackLength(SIGSEGV)==1); |
| 322 |
CU_TEST(Asc_SignalStackLength(SIGINT)==2); |
| 323 |
CU_TEST(Asc_SignalStackLength(SIGFPE)==2); |
| 324 |
CHECK_SIGNALS_MATCH_STACKS(Asc_SignalTrap, my_handler1, my_handler2); |
| 325 |
|
| 326 |
/* pop off the SIGINT stack */ |
| 327 |
CU_TEST(0 == Asc_SignalHandlerPop(SIGINT, my_handler1)); |
| 328 |
|
| 329 |
CONSOLE_DEBUG("SIGFPE stack:"); |
| 330 |
Asc_SignalPrintStack(SIGFPE); |
| 331 |
|
| 332 |
CHECK_SIGNALS_MATCH_STACKS(Asc_SignalTrap, SIG_IGN, my_handler2); |
| 333 |
CU_TEST(Asc_SignalStackLength(SIGSEGV)==1); |
| 334 |
CU_TEST(Asc_SignalStackLength(SIGINT)==1); |
| 335 |
CU_TEST(Asc_SignalStackLength(SIGFPE)==2); |
| 336 |
|
| 337 |
/* attempt to pop off an incorrect handler */ |
| 338 |
CONSOLE_DEBUG("Popping incorrect handler"); |
| 339 |
CU_TEST(0 != Asc_SignalHandlerPop(SIGFPE, wrong_handler)); |
| 340 |
|
| 341 |
CHECK_SIGNALS_MATCH_STACKS(Asc_SignalTrap, SIG_IGN, my_handler2); |
| 342 |
CU_TEST(Asc_SignalStackLength(SIGSEGV)==1); |
| 343 |
CU_TEST(Asc_SignalStackLength(SIGINT)==1); |
| 344 |
CU_TEST(Asc_SignalStackLength(SIGFPE)==2); |
| 345 |
|
| 346 |
/* mess with the SIGFPE handler, then attempt to recover from stacks */ |
| 347 |
old_handler = SIGNAL(SIGFPE, SIG_DFL); |
| 348 |
Asc_SignalRecover(TRUE); |
| 349 |
|
| 350 |
CHECK_SIGNALS_MATCH_STACKS(Asc_SignalTrap, SIG_IGN, my_handler2); |
| 351 |
CU_TEST(Asc_SignalStackLength(SIGSEGV)==1); |
| 352 |
CU_TEST(Asc_SignalStackLength(SIGINT)==1); |
| 353 |
CU_TEST(Asc_SignalStackLength(SIGFPE)==2); |
| 354 |
|
| 355 |
/* try a couple of unsupported signal types */ |
| 356 |
CU_TEST(0 != Asc_SignalHandlerPop(SIGILL, my_handler1)); |
| 357 |
CU_TEST(0 != Asc_SignalHandlerPop(SIGABRT, Asc_SignalTrap)); |
| 358 |
|
| 359 |
CHECK_SIGNALS_MATCH_STACKS(Asc_SignalTrap, SIG_IGN, my_handler2); |
| 360 |
CU_TEST(Asc_SignalStackLength(SIGSEGV)==1); |
| 361 |
CU_TEST(Asc_SignalStackLength(SIGINT)==1); |
| 362 |
CU_TEST(Asc_SignalStackLength(SIGFPE)==2); |
| 363 |
|
| 364 |
restore_previous_signals(); |
| 365 |
Asc_SignalDestroy(); |
| 366 |
MEMUSED(0); |
| 367 |
} |
| 368 |
|
| 369 |
/*----------------------------------------*/ |
| 370 |
|
| 371 |
static void test_ascsignal_trap(void){ |
| 372 |
SigHandlerFn *old_handler; |
| 373 |
volatile int signal1_caught; |
| 374 |
|
| 375 |
store_current_signals(); |
| 376 |
|
| 377 |
SIGNAL(SIGFPE,my_handler1); |
| 378 |
SIGNAL(SIGINT,NULL); |
| 379 |
SIGNAL(SIGSEGV,my_handler2); |
| 380 |
|
| 381 |
CU_TEST(0 == Asc_SignalInit()); |
| 382 |
|
| 383 |
CU_TEST(0 == Asc_SignalHandlerPush(SIGFPE, Asc_SignalTrap)); |
| 384 |
CU_TEST(0 == Asc_SignalHandlerPush(SIGINT, Asc_SignalTrap)); |
| 385 |
CU_TEST(0 == Asc_SignalHandlerPush(SIGSEGV, Asc_SignalTrap)); |
| 386 |
|
| 387 |
signal1_caught = FALSE; |
| 388 |
CONSOLE_DEBUG("Raise and catch a SIGFPE..."); |
| 389 |
if (0 == SETJMP(g_fpe_env)){ |
| 390 |
CONSOLE_DEBUG("Raising SIGFPE"); |
| 391 |
raise(SIGFPE); |
| 392 |
CONSOLE_DEBUG("SHOULDN'T BE HERE"); |
| 393 |
CU_FAIL("Shouldn't be here"); |
| 394 |
}else{ |
| 395 |
signal1_caught = TRUE; |
| 396 |
CONSOLE_DEBUG("Caught SIGFPE"); |
| 397 |
} |
| 398 |
CU_TEST(TRUE == signal1_caught); |
| 399 |
|
| 400 |
signal1_caught = FALSE; |
| 401 |
/* raise & catch a SIGINT */ |
| 402 |
if (0 == SETJMP(g_int_env)){ |
| 403 |
raise(SIGINT); |
| 404 |
}else{ |
| 405 |
signal1_caught = TRUE; |
| 406 |
CONSOLE_DEBUG("Caught SIGINT"); |
| 407 |
} |
| 408 |
CU_TEST(TRUE == signal1_caught); |
| 409 |
|
| 410 |
signal1_caught = FALSE; |
| 411 |
/* raise & catch a SIGSEGV */ |
| 412 |
if (0 == SETJMP(g_seg_env)) { |
| 413 |
raise(SIGSEGV); |
| 414 |
}else{ |
| 415 |
signal1_caught = TRUE; |
| 416 |
CONSOLE_DEBUG("Caught SIGSEGV"); |
| 417 |
} |
| 418 |
CU_TEST(TRUE == signal1_caught); |
| 419 |
|
| 420 |
|
| 421 |
Asc_SignalRecover(TRUE); |
| 422 |
|
| 423 |
CU_TEST(0 == Asc_SignalHandlerPop(SIGFPE, Asc_SignalTrap)); |
| 424 |
CU_TEST(0 == Asc_SignalHandlerPop(SIGINT, Asc_SignalTrap)); |
| 425 |
CU_TEST(0 == Asc_SignalHandlerPop(SIGSEGV, Asc_SignalTrap)); |
| 426 |
|
| 427 |
old_handler = SIGNAL(SIGFPE, SIG_DFL); /* handlers should be restored at this point */ |
| 428 |
CU_TEST(my_handler1 == old_handler); |
| 429 |
old_handler = SIGNAL(SIGINT, SIG_DFL); |
| 430 |
CU_TEST(NULL == old_handler); |
| 431 |
old_handler = SIGNAL(SIGSEGV, SIG_DFL); |
| 432 |
CU_TEST(my_handler2 == old_handler); |
| 433 |
Asc_SignalRecover(TRUE); |
| 434 |
|
| 435 |
restore_previous_signals(); |
| 436 |
Asc_SignalDestroy(); |
| 437 |
MEMUSED(0); |
| 438 |
} |
| 439 |
|
| 440 |
/*----------------------------------------*/ |
| 441 |
|
| 442 |
static void test_ascsignal_nestingfpe(void){ |
| 443 |
volatile int signal1_caught; |
| 444 |
volatile int signal2_caught; |
| 445 |
volatile int signal3_caught; |
| 446 |
|
| 447 |
store_current_signals(); |
| 448 |
CU_TEST(0 == Asc_SignalInit()); |
| 449 |
|
| 450 |
/* test typical use with nesting of handlers */ |
| 451 |
|
| 452 |
f_handler1_called = FALSE; /* initialize flags for detecting flow */ |
| 453 |
f_handler1_sigval = 0; |
| 454 |
f_handler2_called = FALSE; |
| 455 |
f_handler2_sigval = 0; |
| 456 |
signal1_caught = FALSE; |
| 457 |
signal2_caught = FALSE; |
| 458 |
signal3_caught = FALSE; |
| 459 |
|
| 460 |
CU_TEST(0 == Asc_SignalHandlerPush(SIGFPE, my_handler1)); |
| 461 |
if (0 == SETJMP(my_jmp_buf1)) { |
| 462 |
CU_TEST(0 == Asc_SignalHandlerPush(SIGFPE, my_handler2)); |
| 463 |
if (0 == SETJMP(my_jmp_buf2)) { |
| 464 |
CU_TEST(0 == Asc_SignalHandlerPush(SIGFPE, Asc_SignalTrap)); |
| 465 |
if(0 == SETJMP(g_fpe_env)) { |
| 466 |
raise(SIGFPE); |
| 467 |
CONSOLE_DEBUG("..."); |
| 468 |
CU_FAIL("Can't be here! No signal was raised!"); |
| 469 |
}else{ |
| 470 |
CONSOLE_DEBUG("..."); |
| 471 |
CU_TEST(f_handler1_called == FALSE); |
| 472 |
CU_TEST(f_handler1_sigval == 0); |
| 473 |
CU_TEST(f_handler2_called == FALSE); |
| 474 |
CU_TEST(f_handler2_sigval == 0); |
| 475 |
signal3_caught = TRUE; |
| 476 |
} |
| 477 |
CONSOLE_DEBUG("..."); |
| 478 |
CU_TEST(FALSE == signal1_caught); |
| 479 |
CU_TEST(FALSE == signal2_caught); |
| 480 |
CU_TEST(TRUE == signal3_caught); |
| 481 |
CU_TEST(0 == Asc_SignalHandlerPop(SIGFPE, Asc_SignalTrap)); |
| 482 |
f_handler1_called = FALSE; |
| 483 |
f_handler1_sigval = 0; |
| 484 |
f_handler2_called = FALSE; |
| 485 |
f_handler2_sigval = 0; |
| 486 |
signal1_caught = FALSE; |
| 487 |
signal2_caught = FALSE; |
| 488 |
signal3_caught = FALSE; |
| 489 |
raise(SIGFPE); |
| 490 |
}else{ |
| 491 |
CONSOLE_DEBUG("..."); |
| 492 |
CU_TEST(f_handler1_called == FALSE); |
| 493 |
CU_TEST(f_handler1_sigval == 0); |
| 494 |
CU_TEST(f_handler2_called == TRUE); |
| 495 |
CU_TEST(f_handler2_sigval == SIGFPE); |
| 496 |
signal2_caught = TRUE; |
| 497 |
} |
| 498 |
CU_TEST(FALSE == signal1_caught); |
| 499 |
CU_TEST(TRUE == signal2_caught); |
| 500 |
CU_TEST(FALSE == signal3_caught); |
| 501 |
CU_TEST(0 == Asc_SignalHandlerPop(SIGFPE, my_handler2)); |
| 502 |
f_handler1_called = FALSE; |
| 503 |
f_handler1_sigval = 0; |
| 504 |
f_handler2_called = FALSE; |
| 505 |
f_handler2_sigval = 0; |
| 506 |
signal1_caught = FALSE; |
| 507 |
signal2_caught = FALSE; |
| 508 |
signal3_caught = FALSE; |
| 509 |
raise(SIGFPE); |
| 510 |
}else{ |
| 511 |
CONSOLE_DEBUG("..."); |
| 512 |
CU_TEST(f_handler1_called == TRUE); |
| 513 |
CU_TEST(f_handler1_sigval == SIGFPE); |
| 514 |
CU_TEST(f_handler2_called == FALSE); |
| 515 |
CU_TEST(f_handler2_sigval == 0); |
| 516 |
signal1_caught = TRUE; |
| 517 |
} |
| 518 |
CU_TEST(TRUE == signal1_caught); |
| 519 |
CU_TEST(FALSE == signal2_caught); |
| 520 |
CU_TEST(FALSE == signal3_caught); |
| 521 |
CU_TEST(0 == Asc_SignalHandlerPop(SIGFPE, my_handler1)); |
| 522 |
|
| 523 |
CONSOLE_DEBUG("..."); |
| 524 |
|
| 525 |
restore_previous_signals(); |
| 526 |
Asc_SignalDestroy(); |
| 527 |
MEMUSED(0); |
| 528 |
} |
| 529 |
|
| 530 |
/*----------------------------------------*/ |
| 531 |
|
| 532 |
static void test_ascsignal_nestingint(void){ |
| 533 |
volatile int signal1_caught; |
| 534 |
volatile int signal2_caught; |
| 535 |
volatile int signal3_caught; |
| 536 |
SigHandlerFn *old_handler; |
| 537 |
|
| 538 |
store_current_signals(); |
| 539 |
CU_TEST(0 == Asc_SignalInit()); |
| 540 |
|
| 541 |
f_handler1_called = FALSE; /* initialize flags for detecting flow */ |
| 542 |
f_handler1_sigval = 0; |
| 543 |
f_handler2_called = FALSE; |
| 544 |
f_handler2_sigval = 0; |
| 545 |
signal1_caught = FALSE; |
| 546 |
signal2_caught = FALSE; |
| 547 |
signal3_caught = FALSE; |
| 548 |
|
| 549 |
CONSOLE_DEBUG("my_handler1 = %p",my_handler1); |
| 550 |
CONSOLE_DEBUG("my_handler2 = %p",my_handler2); |
| 551 |
CONSOLE_DEBUG("Asc_SignalTrap = %p",Asc_SignalTrap); |
| 552 |
|
| 553 |
CU_TEST(0 == Asc_SignalHandlerPush(SIGINT, my_handler2)); /* test for SIGINT */ |
| 554 |
if (0 == SETJMP(my_jmp_buf2)) { |
| 555 |
CU_TEST(0 == Asc_SignalHandlerPush(SIGINT, Asc_SignalTrap)); |
| 556 |
if (0 == SETJMP(g_int_env)) { |
| 557 |
CU_TEST(0 == Asc_SignalHandlerPush(SIGINT, my_handler1)); |
| 558 |
if (0 == SETJMP(my_jmp_buf1)) { |
| 559 |
CONSOLE_DEBUG("Raising to my_handler1"); |
| 560 |
raise(SIGINT); |
| 561 |
CONSOLE_DEBUG("SHOULDN'T BE HERE!"); |
| 562 |
CU_FAIL("Shouldn't be here!"); |
| 563 |
}else{ |
| 564 |
CONSOLE_DEBUG("Caught from my_handler1"); |
| 565 |
CU_TEST(f_handler1_called == TRUE); |
| 566 |
CU_TEST(f_handler1_sigval == SIGINT); |
| 567 |
CU_TEST(f_handler2_called == FALSE); |
| 568 |
CU_TEST(f_handler2_sigval == 0); |
| 569 |
signal3_caught = TRUE; |
| 570 |
} |
| 571 |
CU_TEST(FALSE == signal1_caught); |
| 572 |
CU_TEST(FALSE == signal2_caught); |
| 573 |
CU_TEST(TRUE == signal3_caught); |
| 574 |
CU_TEST(0 == Asc_SignalHandlerPop(SIGINT, my_handler1)); |
| 575 |
|
| 576 |
/* check that 'Asc_SignalTrap' is now installed for SIGINT */ |
| 577 |
old_handler = SIGNAL(SIGINT,SIG_DFL); |
| 578 |
CU_TEST(old_handler == Asc_SignalTrap); |
| 579 |
old_handler = SIGNAL(SIGINT,Asc_SignalTrap); |
| 580 |
CU_TEST(old_handler == SIG_DFL); |
| 581 |
|
| 582 |
f_handler1_called = FALSE; |
| 583 |
f_handler1_sigval = 0; |
| 584 |
f_handler2_called = FALSE; |
| 585 |
f_handler2_sigval = 0; |
| 586 |
signal1_caught = FALSE; |
| 587 |
signal2_caught = FALSE; |
| 588 |
signal3_caught = FALSE; |
| 589 |
CONSOLE_DEBUG("Raising to Asc_SignalTrap"); |
| 590 |
raise(SIGINT); |
| 591 |
CONSOLE_DEBUG("SHOULDN'T BE HERE!"); |
| 592 |
CU_FAIL("Shouldn't be here!"); |
| 593 |
}else{ |
| 594 |
CONSOLE_DEBUG("Caught from Asc_SignalTrap"); |
| 595 |
CU_TEST(f_handler1_called == FALSE); |
| 596 |
CU_TEST(f_handler1_sigval == 0); |
| 597 |
CU_TEST(f_handler2_called == FALSE); |
| 598 |
CU_TEST(f_handler2_sigval == 0); |
| 599 |
signal2_caught = TRUE; |
| 600 |
} |
| 601 |
CU_TEST(FALSE == signal1_caught); |
| 602 |
CU_TEST(TRUE == signal2_caught); |
| 603 |
CU_TEST(FALSE == signal3_caught); |
| 604 |
CU_TEST(0 == Asc_SignalHandlerPop(SIGINT, Asc_SignalTrap)); |
| 605 |
f_handler1_called = FALSE; |
| 606 |
f_handler1_sigval = 0; |
| 607 |
f_handler2_called = FALSE; |
| 608 |
f_handler2_sigval = 0; |
| 609 |
signal1_caught = FALSE; |
| 610 |
signal2_caught = FALSE; |
| 611 |
signal3_caught = FALSE; |
| 612 |
CONSOLE_DEBUG("Raising to my_handler2"); |
| 613 |
raise(SIGINT); |
| 614 |
CONSOLE_DEBUG("SHOULDN'T BE HERE!"); |
| 615 |
CU_FAIL("Shouldn't be here!"); |
| 616 |
}else{ |
| 617 |
CONSOLE_DEBUG("Caught from my_handler2"); |
| 618 |
CU_TEST(f_handler1_called == FALSE); |
| 619 |
CU_TEST(f_handler1_sigval == 0); |
| 620 |
CU_TEST(f_handler2_called == TRUE); |
| 621 |
CU_TEST(f_handler2_sigval == SIGINT); |
| 622 |
signal1_caught = TRUE; |
| 623 |
} |
| 624 |
CU_TEST(TRUE == signal1_caught); |
| 625 |
CU_TEST(FALSE == signal2_caught); |
| 626 |
CU_TEST(FALSE == signal3_caught); |
| 627 |
CU_TEST(0 == Asc_SignalHandlerPop(SIGINT, my_handler2)); |
| 628 |
|
| 629 |
restore_previous_signals(); |
| 630 |
Asc_SignalDestroy(); |
| 631 |
MEMUSED(0); |
| 632 |
} |
| 633 |
|
| 634 |
/*----------------------------------------*/ |
| 635 |
|
| 636 |
static void test_ascsignal_nestingsegv(void){ |
| 637 |
|
| 638 |
SigHandlerFn *old_handler; |
| 639 |
volatile int signal1_caught; |
| 640 |
volatile int signal2_caught; |
| 641 |
volatile int signal3_caught; |
| 642 |
|
| 643 |
store_current_signals(); |
| 644 |
CU_TEST(0 == Asc_SignalInit()); |
| 645 |
|
| 646 |
f_handler1_called = FALSE; /* initialize flags for detecting flow */ |
| 647 |
f_handler1_sigval = 0; |
| 648 |
f_handler2_called = FALSE; |
| 649 |
f_handler2_sigval = 0; |
| 650 |
signal1_caught = FALSE; |
| 651 |
signal2_caught = FALSE; |
| 652 |
signal3_caught = FALSE; |
| 653 |
|
| 654 |
CU_TEST(0 == Asc_SignalHandlerPush(SIGSEGV, Asc_SignalTrap)); /* test for SIGSEGV */ |
| 655 |
if (0 == SETJMP(g_seg_env)) { |
| 656 |
CU_TEST(0 == Asc_SignalHandlerPush(SIGSEGV, my_handler2)); |
| 657 |
if (0 == SETJMP(my_jmp_buf2)) { |
| 658 |
CU_TEST(0 == Asc_SignalHandlerPush(SIGSEGV, my_handler1)); |
| 659 |
if (0 == SETJMP(my_jmp_buf1)) { |
| 660 |
raise(SIGSEGV); |
| 661 |
} |
| 662 |
else { |
| 663 |
CU_TEST(f_handler1_called == TRUE); |
| 664 |
CU_TEST(f_handler1_sigval == SIGSEGV); |
| 665 |
CU_TEST(f_handler2_called == FALSE); |
| 666 |
CU_TEST(f_handler2_sigval == 0); |
| 667 |
signal3_caught = TRUE; |
| 668 |
} |
| 669 |
CU_TEST(FALSE == signal1_caught); |
| 670 |
CU_TEST(FALSE == signal2_caught); |
| 671 |
CU_TEST(TRUE == signal3_caught); |
| 672 |
CU_TEST(0 == Asc_SignalHandlerPop(SIGSEGV, my_handler1)); |
| 673 |
f_handler1_called = FALSE; |
| 674 |
f_handler1_sigval = 0; |
| 675 |
f_handler2_called = FALSE; |
| 676 |
f_handler2_sigval = 0; |
| 677 |
signal1_caught = FALSE; |
| 678 |
signal2_caught = FALSE; |
| 679 |
signal3_caught = FALSE; |
| 680 |
raise(SIGSEGV); |
| 681 |
} |
| 682 |
else { |
| 683 |
CU_TEST(f_handler1_called == FALSE); |
| 684 |
CU_TEST(f_handler1_sigval == 0); |
| 685 |
CU_TEST(f_handler2_called == TRUE); |
| 686 |
CU_TEST(f_handler2_sigval == SIGSEGV); |
| 687 |
signal2_caught = TRUE; |
| 688 |
} |
| 689 |
CU_TEST(FALSE == signal1_caught); |
| 690 |
CU_TEST(TRUE == signal2_caught); |
| 691 |
CU_TEST(FALSE == signal3_caught); |
| 692 |
CU_TEST(0 == Asc_SignalHandlerPop(SIGSEGV, my_handler2)); |
| 693 |
f_handler1_called = FALSE; |
| 694 |
f_handler1_sigval = 0; |
| 695 |
f_handler2_called = FALSE; |
| 696 |
f_handler2_sigval = 0; |
| 697 |
signal1_caught = FALSE; |
| 698 |
signal2_caught = FALSE; |
| 699 |
signal3_caught = FALSE; |
| 700 |
raise(SIGSEGV); |
| 701 |
} |
| 702 |
else { |
| 703 |
CU_TEST(f_handler1_called == FALSE); |
| 704 |
CU_TEST(f_handler1_sigval == 0); |
| 705 |
CU_TEST(f_handler2_called == FALSE); |
| 706 |
CU_TEST(f_handler2_sigval == 0); |
| 707 |
signal1_caught = TRUE; |
| 708 |
} |
| 709 |
CU_TEST(TRUE == signal1_caught); |
| 710 |
CU_TEST(FALSE == signal2_caught); |
| 711 |
CU_TEST(FALSE == signal3_caught); |
| 712 |
CU_TEST(0 == Asc_SignalHandlerPop(SIGSEGV, Asc_SignalTrap)); |
| 713 |
|
| 714 |
old_handler = SIGNAL(SIGFPE, SIG_DFL); /* handlers should be restored at this point */ |
| 715 |
CU_TEST(my_handler1 == old_handler); |
| 716 |
old_handler = SIGNAL(SIGINT, SIG_DFL); |
| 717 |
CU_TEST(NULL == old_handler); |
| 718 |
old_handler = SIGNAL(SIGSEGV, SIG_DFL); |
| 719 |
CU_TEST(my_handler2 == old_handler); |
| 720 |
Asc_SignalRecover(TRUE); |
| 721 |
|
| 722 |
Asc_SignalDestroy(); |
| 723 |
|
| 724 |
old_handler = SIGNAL(SIGFPE, SIG_DFL); /* original handlers should still be in place */ |
| 725 |
CU_TEST(my_handler1 == old_handler); |
| 726 |
old_handler = SIGNAL(SIGINT, SIG_DFL); |
| 727 |
CU_TEST(NULL == old_handler); |
| 728 |
old_handler = SIGNAL(SIGSEGV, SIG_DFL); |
| 729 |
CU_TEST(my_handler2 == old_handler); |
| 730 |
Asc_SignalRecover(TRUE); |
| 731 |
|
| 732 |
#endif /* NO_SIGNAL_TRAPS */ |
| 733 |
|
| 734 |
restore_previous_signals(); |
| 735 |
Asc_SignalDestroy(); |
| 736 |
MEMUSED(0); |
| 737 |
} |
| 738 |
|
| 739 |
/*===========================================================================*/ |
| 740 |
/* Registration information */ |
| 741 |
|
| 742 |
#define T(N) {#N,test_ascsignal_##N} |
| 743 |
static CU_TestInfo ascSignal_test_list[] = { |
| 744 |
T(basic) |
| 745 |
, T(pushpopint) |
| 746 |
, T(pushpop) |
| 747 |
, T(trap) |
| 748 |
, T(nestingfpe) |
| 749 |
, T(nestingint) |
| 750 |
, T(nestingsegv) |
| 751 |
, CU_TEST_INFO_NULL |
| 752 |
}; |
| 753 |
#undef T |
| 754 |
|
| 755 |
static CU_SuiteInfo suites[] = { |
| 756 |
{"test_utilities_ascSignal", NULL, NULL, ascSignal_test_list}, |
| 757 |
CU_SUITE_INFO_NULL |
| 758 |
}; |
| 759 |
|
| 760 |
/*-------------------------------------------------------------------*/ |
| 761 |
CU_ErrorCode test_register_utilities_ascSignal(void) |
| 762 |
{ |
| 763 |
return CU_register_suites(suites); |
| 764 |
} |
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