robbiew | 1b69b82 | 2002-12-04 19:28:37 +0000 | [diff] [blame] | 1 | /* |
| 2 | * |
| 3 | * Copyright (c) International Business Machines Corp., 2002 |
| 4 | * |
| 5 | * This program is free software; you can redistribute it and/or modify |
| 6 | * it under the terms of the GNU General Public License as published by |
| 7 | * the Free Software Foundation; either version 2 of the License, or |
| 8 | * (at your option) any later version. |
| 9 | * |
| 10 | * This program is distributed in the hope that it will be useful, |
| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See |
| 13 | * the GNU General Public License for more details. |
| 14 | * |
| 15 | * You should have received a copy of the GNU General Public License |
| 16 | * along with this program; if not, write to the Free Software |
Wanlong Gao | 4548c6c | 2012-10-19 18:03:36 +0800 | [diff] [blame] | 17 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
robbiew | 1b69b82 | 2002-12-04 19:28:37 +0000 | [diff] [blame] | 18 | */ |
| 19 | |
| 20 | /* 11/19/2002 Port to LTP robbiew@us.ibm.com */ |
| 21 | /* 06/30/2001 Port to Linux nsharoff@us.ibm.com */ |
| 22 | |
| 23 | /* |
| 24 | * NAME |
| 25 | * stack_space.c - stack test |
| 26 | * |
| 27 | * Test VM for set of stack-space intensive programs. |
| 28 | * This code very similar to tdat.c, only uses stack-based "file". |
| 29 | * |
| 30 | */ |
| 31 | |
| 32 | #include <stdio.h> |
| 33 | #include <sys/types.h> |
| 34 | #include <signal.h> |
robbiew | c0325f7 | 2003-02-10 18:46:26 +0000 | [diff] [blame] | 35 | #include <errno.h> |
robbiew | 1b69b82 | 2002-12-04 19:28:37 +0000 | [diff] [blame] | 36 | #include <sys/wait.h> |
| 37 | #include <stdlib.h> |
| 38 | #include <unistd.h> |
robbiew | 1b69b82 | 2002-12-04 19:28:37 +0000 | [diff] [blame] | 39 | #include <string.h> |
robbiew | 1b69b82 | 2002-12-04 19:28:37 +0000 | [diff] [blame] | 40 | |
robbiew | 1b69b82 | 2002-12-04 19:28:37 +0000 | [diff] [blame] | 41 | /** LTP Port **/ |
| 42 | #include "test.h" |
| 43 | #include "usctest.h" |
| 44 | |
| 45 | #define FAILED 0 |
| 46 | #define PASSED 1 |
| 47 | |
| 48 | int local_flag = PASSED; |
| 49 | int block_number; |
| 50 | |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 51 | char *TCID = "stack_space"; /* Test program identifier. */ |
| 52 | int TST_TOTAL = 1; /* Total number of test cases. */ |
robbiew | 1b69b82 | 2002-12-04 19:28:37 +0000 | [diff] [blame] | 53 | /**************/ |
| 54 | |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 55 | #define MAXCHILD 100 /* max # kids */ |
robbiew | 1b69b82 | 2002-12-04 19:28:37 +0000 | [diff] [blame] | 56 | #define K_1 1024 |
| 57 | #define K_2 2048 |
| 58 | #define K_4 4096 |
| 59 | #define MAXSIZE 10*K_1 |
| 60 | |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 61 | int nchild; /* # kids */ |
| 62 | int csize; /* chunk size */ |
| 63 | int iterations; /* # total iterations */ |
| 64 | int parent_pid; |
robbiew | 1b69b82 | 2002-12-04 19:28:37 +0000 | [diff] [blame] | 65 | |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 66 | int usage(char *); |
| 67 | int bd_arg(char *); |
| 68 | int runtest(); |
| 69 | int dotest(int, int); |
| 70 | int bfill(char *, char, int); |
| 71 | int dumpbuf(char *); |
| 72 | void dumpbits(char *, int); |
robbiew | 1b69b82 | 2002-12-04 19:28:37 +0000 | [diff] [blame] | 73 | |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 74 | char *prog; /* invoked name */ |
robbiew | 1b69b82 | 2002-12-04 19:28:37 +0000 | [diff] [blame] | 75 | |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 76 | int usage(char *prog) |
robbiew | 1b69b82 | 2002-12-04 19:28:37 +0000 | [diff] [blame] | 77 | { |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 78 | tst_resm(TCONF, "Usage: %s <nchild> <chunk_size> <iterations>", prog); |
Cyril Hrubis | 526fdf8 | 2014-12-04 14:35:01 +0100 | [diff] [blame] | 79 | tst_brkm(TCONF, NULL, "DEFAULTS: 20 1024 50"); |
robbiew | 1b69b82 | 2002-12-04 19:28:37 +0000 | [diff] [blame] | 80 | } |
| 81 | |
| 82 | int main(argc, argv) |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 83 | int argc; |
| 84 | char *argv[]; |
robbiew | 1b69b82 | 2002-12-04 19:28:37 +0000 | [diff] [blame] | 85 | { |
| 86 | register int i; |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 87 | void term(); |
robbiew | 1b69b82 | 2002-12-04 19:28:37 +0000 | [diff] [blame] | 88 | |
robbiew | 1b69b82 | 2002-12-04 19:28:37 +0000 | [diff] [blame] | 89 | prog = argv[0]; |
| 90 | parent_pid = getpid(); |
| 91 | |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 92 | if (signal(SIGTERM, term) == SIG_ERR) { |
Cyril Hrubis | 526fdf8 | 2014-12-04 14:35:01 +0100 | [diff] [blame] | 93 | tst_brkm(TBROK, NULL, "first sigset failed"); |
subrata_modak | bdbaec5 | 2009-02-26 12:14:51 +0000 | [diff] [blame] | 94 | |
robbiew | 1b69b82 | 2002-12-04 19:28:37 +0000 | [diff] [blame] | 95 | } |
| 96 | |
| 97 | if (argc == 1) { |
| 98 | nchild = 20; |
subrata_modak | 0ef4a5f | 2007-08-27 12:40:57 +0000 | [diff] [blame] | 99 | csize = K_1; |
robbiew | 1b69b82 | 2002-12-04 19:28:37 +0000 | [diff] [blame] | 100 | iterations = 50; |
| 101 | } else if (argc == 4) { |
| 102 | i = 1; |
| 103 | if (sscanf(argv[i++], "%d", &nchild) != 1) |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 104 | bd_arg(argv[i - 1]); |
robbiew | 1b69b82 | 2002-12-04 19:28:37 +0000 | [diff] [blame] | 105 | if (nchild > MAXCHILD) { |
Cyril Hrubis | 526fdf8 | 2014-12-04 14:35:01 +0100 | [diff] [blame] | 106 | tst_brkm(TBROK, NULL, |
| 107 | "Too many children, max is %d\n", |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 108 | MAXCHILD); |
robbiew | 1b69b82 | 2002-12-04 19:28:37 +0000 | [diff] [blame] | 109 | } |
| 110 | if (sscanf(argv[i++], "%d", &csize) != 1) |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 111 | bd_arg(argv[i - 1]); |
Garrett Cooper | df3eb16 | 2010-11-28 22:44:32 -0800 | [diff] [blame] | 112 | if (csize > MAXSIZE) { |
Cyril Hrubis | 526fdf8 | 2014-12-04 14:35:01 +0100 | [diff] [blame] | 113 | tst_brkm(TBROK, NULL, |
| 114 | "Chunk size too large , max is %d\n", |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 115 | MAXSIZE); |
subrata_modak | 0ef4a5f | 2007-08-27 12:40:57 +0000 | [diff] [blame] | 116 | } |
robbiew | 1b69b82 | 2002-12-04 19:28:37 +0000 | [diff] [blame] | 117 | if (sscanf(argv[i++], "%d", &iterations) != 1) |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 118 | bd_arg(argv[i - 1]); |
robbiew | 1b69b82 | 2002-12-04 19:28:37 +0000 | [diff] [blame] | 119 | } else |
| 120 | usage(prog); |
| 121 | |
| 122 | tst_tmpdir(); |
| 123 | runtest(); |
| 124 | /**NOT REACHED**/ |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 125 | return 0; |
robbiew | 1b69b82 | 2002-12-04 19:28:37 +0000 | [diff] [blame] | 126 | |
| 127 | } |
| 128 | |
| 129 | int bd_arg(str) |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 130 | char *str; |
robbiew | 1b69b82 | 2002-12-04 19:28:37 +0000 | [diff] [blame] | 131 | { |
Cyril Hrubis | 526fdf8 | 2014-12-04 14:35:01 +0100 | [diff] [blame] | 132 | tst_brkm(TCONF, NULL, |
| 133 | "Bad argument - %s - could not parse as number.\n", |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 134 | str); |
robbiew | 1b69b82 | 2002-12-04 19:28:37 +0000 | [diff] [blame] | 135 | } |
| 136 | |
robbiew | 1b69b82 | 2002-12-04 19:28:37 +0000 | [diff] [blame] | 137 | int runtest() |
| 138 | { |
| 139 | register int i; |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 140 | int child; |
| 141 | int status; |
| 142 | int count; |
robbiew | 1b69b82 | 2002-12-04 19:28:37 +0000 | [diff] [blame] | 143 | |
Garrett Cooper | df3eb16 | 2010-11-28 22:44:32 -0800 | [diff] [blame] | 144 | for (i = 0; i < nchild; i++) { |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 145 | if ((child = fork()) == 0) { /* child */ |
| 146 | dotest(nchild, i); /* do it! */ |
| 147 | exit(0); /* when done, exit */ |
robbiew | 1b69b82 | 2002-12-04 19:28:37 +0000 | [diff] [blame] | 148 | } |
| 149 | if (child < 0) { |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 150 | tst_resm(TBROK, |
| 151 | "Fork failed (may be OK if under stress)"); |
| 152 | tst_resm(TINFO, "System resource may be too low.\n"); |
Cyril Hrubis | 9fa8ad0 | 2014-12-16 13:20:49 +0100 | [diff] [blame^] | 153 | tst_brkm(TBROK, tst_rmdir, "Reason: %s\n", |
| 154 | strerror(errno)); |
robbiew | 1b69b82 | 2002-12-04 19:28:37 +0000 | [diff] [blame] | 155 | |
| 156 | } |
| 157 | } |
| 158 | |
| 159 | /* |
| 160 | * Wait for children to finish. |
| 161 | */ |
| 162 | |
| 163 | count = 0; |
Garrett Cooper | df3eb16 | 2010-11-28 22:44:32 -0800 | [diff] [blame] | 164 | while ((child = wait(&status)) > 0) { |
robbiew | 1b69b82 | 2002-12-04 19:28:37 +0000 | [diff] [blame] | 165 | #ifdef DEBUG |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 166 | tst_resm(TINFO, "\t%s[%d] exited status = 0x%x\n", prog, child, |
| 167 | status); |
robbiew | 1b69b82 | 2002-12-04 19:28:37 +0000 | [diff] [blame] | 168 | #endif |
| 169 | if (status) { |
| 170 | tst_resm(TINFO, "\tFailed - expected 0 exit status.\n"); |
| 171 | local_flag = FAILED; |
| 172 | } |
| 173 | ++count; |
| 174 | } |
| 175 | |
| 176 | /* |
| 177 | * Should have collected all children. |
| 178 | */ |
| 179 | |
| 180 | if (count != nchild) { |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 181 | tst_resm(TINFO, "\tWrong # children waited on, count = %d\n", |
| 182 | count); |
robbiew | 1b69b82 | 2002-12-04 19:28:37 +0000 | [diff] [blame] | 183 | local_flag = FAILED; |
| 184 | } |
| 185 | |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 186 | (local_flag == FAILED) ? tst_resm(TFAIL, "Test failed") |
| 187 | : tst_resm(TPASS, "Test passed"); |
| 188 | sync(); /* safeness */ |
| 189 | tst_rmdir(); |
| 190 | tst_exit(); |
robbiew | 1b69b82 | 2002-12-04 19:28:37 +0000 | [diff] [blame] | 191 | |
robbiew | 1b69b82 | 2002-12-04 19:28:37 +0000 | [diff] [blame] | 192 | } |
| 193 | |
| 194 | /* |
| 195 | * dotest() |
| 196 | * Children execute this. |
| 197 | * |
| 198 | * Randomly read/mod/write chunks with known pattern and check. |
| 199 | * When fill sectors, iterate. |
| 200 | */ |
| 201 | |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 202 | int nchunks; |
robbiew | 1b69b82 | 2002-12-04 19:28:37 +0000 | [diff] [blame] | 203 | |
| 204 | #define CHUNK(i) ((i) * csize) |
| 205 | |
subrata_modak | 0ef4a5f | 2007-08-27 12:40:57 +0000 | [diff] [blame] | 206 | int dotest(int testers, int me) |
robbiew | 1b69b82 | 2002-12-04 19:28:37 +0000 | [diff] [blame] | 207 | { |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 208 | char *bits; |
| 209 | char *val_buf; |
| 210 | char *zero_buf; |
| 211 | char *buf; |
| 212 | int count; |
| 213 | int collide; |
| 214 | char val; |
| 215 | int chunk; |
| 216 | char mondobuf[MAXSIZE]; |
robbiew | 1b69b82 | 2002-12-04 19:28:37 +0000 | [diff] [blame] | 217 | |
| 218 | nchunks = MAXSIZE / csize; |
Cyril Hrubis | d218f34 | 2014-09-23 13:14:56 +0200 | [diff] [blame] | 219 | bits = malloc((nchunks + 7) / 8); |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 220 | val_buf = (char *)(malloc(csize)); |
| 221 | zero_buf = (char *)(malloc(csize)); |
robbiew | 1b69b82 | 2002-12-04 19:28:37 +0000 | [diff] [blame] | 222 | |
| 223 | if (bits == 0 || val_buf == 0 || zero_buf == 0) { |
Cyril Hrubis | 526fdf8 | 2014-12-04 14:35:01 +0100 | [diff] [blame] | 224 | tst_brkm(TFAIL, NULL, "\tmalloc failed, pid: %d\n", getpid()); |
robbiew | 1b69b82 | 2002-12-04 19:28:37 +0000 | [diff] [blame] | 225 | } |
| 226 | |
| 227 | /* |
| 228 | * No init sectors; allow file to be sparse. |
| 229 | */ |
| 230 | |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 231 | val = (64 / testers) * me + 1; |
robbiew | 1b69b82 | 2002-12-04 19:28:37 +0000 | [diff] [blame] | 232 | |
| 233 | /* |
| 234 | * For each iteration: |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 235 | * zap bits array |
| 236 | * loop: |
| 237 | * pick random chunk. |
| 238 | * if corresponding bit off { |
| 239 | * verify == 0. (sparse file) |
| 240 | * ++count; |
| 241 | * } else |
| 242 | * verify == val. |
| 243 | * write "val" on it. |
| 244 | * repeat until count = nchunks. |
| 245 | * ++val. |
| 246 | * Fill-in those chunks not yet seen. |
robbiew | 1b69b82 | 2002-12-04 19:28:37 +0000 | [diff] [blame] | 247 | */ |
| 248 | |
| 249 | bfill(zero_buf, 0, csize); |
| 250 | bfill(mondobuf, 0, MAXSIZE); |
| 251 | |
| 252 | srand(getpid()); |
Garrett Cooper | df3eb16 | 2010-11-28 22:44:32 -0800 | [diff] [blame] | 253 | while (iterations-- > 0) { |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 254 | bfill(bits, 0, (nchunks + 7) / 8); |
robbiew | 1b69b82 | 2002-12-04 19:28:37 +0000 | [diff] [blame] | 255 | bfill(val_buf, val, csize); |
| 256 | count = 0; |
| 257 | collide = 0; |
Garrett Cooper | df3eb16 | 2010-11-28 22:44:32 -0800 | [diff] [blame] | 258 | while (count < nchunks) { |
robbiew | 1b69b82 | 2002-12-04 19:28:37 +0000 | [diff] [blame] | 259 | chunk = rand() % nchunks; |
| 260 | buf = mondobuf + CHUNK(chunk); |
| 261 | |
| 262 | /* |
| 263 | * If bit off, haven't seen it yet. |
| 264 | * Else, have. Verify values. |
| 265 | */ |
| 266 | |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 267 | if ((bits[chunk / 8] & (1 << (chunk % 8))) == 0) { |
robbiew | 1b69b82 | 2002-12-04 19:28:37 +0000 | [diff] [blame] | 268 | if (memcmp(buf, zero_buf, csize)) { |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 269 | tst_resm(TFAIL, |
| 270 | "%s[%d] bad verify @ %d (%p) for val %d count %d, should be 0.\n", |
| 271 | prog, me, chunk, buf, val, |
| 272 | count); |
| 273 | tst_resm(TINFO, "Prev "); |
| 274 | dumpbuf(buf - csize); |
robbiew | 1b69b82 | 2002-12-04 19:28:37 +0000 | [diff] [blame] | 275 | dumpbuf(buf); |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 276 | tst_resm(TINFO, "Next "); |
| 277 | dumpbuf(buf + csize); |
| 278 | dumpbits(bits, (nchunks + 7) / 8); |
robbiew | 1b69b82 | 2002-12-04 19:28:37 +0000 | [diff] [blame] | 279 | tst_exit(); |
| 280 | } |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 281 | bits[chunk / 8] |= (1 << (chunk % 8)); |
robbiew | 1b69b82 | 2002-12-04 19:28:37 +0000 | [diff] [blame] | 282 | ++count; |
| 283 | } else { |
| 284 | ++collide; |
| 285 | if (memcmp(buf, val_buf, csize)) { |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 286 | tst_resm(TFAIL, |
| 287 | "%s[%d] bad verify @ %d (%p) for val %d count %d.\n", |
| 288 | prog, me, chunk, buf, val, |
| 289 | count); |
| 290 | tst_resm(TINFO, "Prev "); |
| 291 | dumpbuf(buf - csize); |
robbiew | 1b69b82 | 2002-12-04 19:28:37 +0000 | [diff] [blame] | 292 | dumpbuf(buf); |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 293 | tst_resm(TINFO, "Next "); |
| 294 | dumpbuf(buf + csize); |
| 295 | dumpbits(bits, (nchunks + 7) / 8); |
robbiew | 1b69b82 | 2002-12-04 19:28:37 +0000 | [diff] [blame] | 296 | tst_exit(); |
| 297 | } |
| 298 | } |
| 299 | |
| 300 | /* |
| 301 | * Write it. |
| 302 | */ |
| 303 | |
| 304 | bfill(buf, val, csize); |
| 305 | |
| 306 | if (count + collide > 2 * nchunks) |
| 307 | break; |
| 308 | } |
| 309 | |
| 310 | /* |
| 311 | * End of iteration, maybe before doing all chunks. |
| 312 | */ |
| 313 | |
Garrett Cooper | df3eb16 | 2010-11-28 22:44:32 -0800 | [diff] [blame] | 314 | for (chunk = 0; chunk < nchunks; chunk++) { |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 315 | if ((bits[chunk / 8] & (1 << (chunk % 8))) == 0) |
| 316 | bfill(mondobuf + CHUNK(chunk), val, csize); |
robbiew | 1b69b82 | 2002-12-04 19:28:37 +0000 | [diff] [blame] | 317 | } |
| 318 | bfill(zero_buf, val, csize); |
| 319 | ++val; |
| 320 | } |
subrata_modak | 0ef4a5f | 2007-08-27 12:40:57 +0000 | [diff] [blame] | 321 | free(bits); |
| 322 | free(val_buf); |
| 323 | free(zero_buf); |
| 324 | |
subrata_modak | 43337a3 | 2009-02-26 11:43:51 +0000 | [diff] [blame] | 325 | return 0; |
robbiew | 1b69b82 | 2002-12-04 19:28:37 +0000 | [diff] [blame] | 326 | } |
| 327 | |
| 328 | int bfill(buf, val, size) |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 329 | register char *buf; |
| 330 | char val; |
| 331 | register int size; |
robbiew | 1b69b82 | 2002-12-04 19:28:37 +0000 | [diff] [blame] | 332 | { |
| 333 | register int i; |
| 334 | |
Garrett Cooper | df3eb16 | 2010-11-28 22:44:32 -0800 | [diff] [blame] | 335 | for (i = 0; i < size; i++) |
robbiew | 1b69b82 | 2002-12-04 19:28:37 +0000 | [diff] [blame] | 336 | buf[i] = val; |
subrata_modak | 43337a3 | 2009-02-26 11:43:51 +0000 | [diff] [blame] | 337 | return 0; |
robbiew | 1b69b82 | 2002-12-04 19:28:37 +0000 | [diff] [blame] | 338 | } |
| 339 | |
robbiew | 1b69b82 | 2002-12-04 19:28:37 +0000 | [diff] [blame] | 340 | /* |
| 341 | * dumpbuf |
| 342 | * Dump the buffer. |
| 343 | */ |
| 344 | |
| 345 | int dumpbuf(buf) |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 346 | register char *buf; |
robbiew | 1b69b82 | 2002-12-04 19:28:37 +0000 | [diff] [blame] | 347 | { |
| 348 | register int i; |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 349 | char val; |
| 350 | int idx; |
| 351 | int nout; |
robbiew | 1b69b82 | 2002-12-04 19:28:37 +0000 | [diff] [blame] | 352 | |
| 353 | #ifdef DEBUG |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 354 | tst_resm(TINFO, "Buf: ... "); |
| 355 | for (i = -10; i < 0; i++) |
| 356 | tst_resm(TINFO, "%x, ", buf[i]); |
| 357 | tst_resm(TINFO, "\n"); |
robbiew | 1b69b82 | 2002-12-04 19:28:37 +0000 | [diff] [blame] | 358 | #endif |
| 359 | |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 360 | nout = 0; |
| 361 | idx = 0; |
| 362 | val = buf[0]; |
| 363 | for (i = 0; i < csize; i++) { |
| 364 | if (buf[i] != val) { |
robbiew | 1b69b82 | 2002-12-04 19:28:37 +0000 | [diff] [blame] | 365 | #ifdef DEBUG |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 366 | if (i == idx + 1) |
| 367 | tst_resm(TINFO, "%x, ", buf[idx] & 0xff); |
| 368 | else |
| 369 | tst_resm(TINFO, "%d*%x, ", i - idx, |
| 370 | buf[idx] & 0xff); |
robbiew | 1b69b82 | 2002-12-04 19:28:37 +0000 | [diff] [blame] | 371 | #endif |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 372 | idx = i; |
| 373 | val = buf[i]; |
| 374 | ++nout; |
| 375 | } |
| 376 | if (nout > 10) { |
robbiew | 1b69b82 | 2002-12-04 19:28:37 +0000 | [diff] [blame] | 377 | #ifdef DEBUG |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 378 | tst_resm(TINFO, " ... more\n"); |
robbiew | 1b69b82 | 2002-12-04 19:28:37 +0000 | [diff] [blame] | 379 | #endif |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 380 | return 0; |
| 381 | } |
| 382 | } |
robbiew | 1b69b82 | 2002-12-04 19:28:37 +0000 | [diff] [blame] | 383 | #ifdef DEBUG |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 384 | if (i == idx + 1) |
| 385 | tst_resm(TINFO, "%x\n", buf[idx] & 0xff); |
| 386 | else |
| 387 | tst_resm(TINFO, "%d*%x\n", i - idx, buf[idx]); |
robbiew | 1b69b82 | 2002-12-04 19:28:37 +0000 | [diff] [blame] | 388 | #endif |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 389 | return 0; |
robbiew | 1b69b82 | 2002-12-04 19:28:37 +0000 | [diff] [blame] | 390 | |
| 391 | } |
| 392 | |
| 393 | /* |
| 394 | * dumpbits |
| 395 | * Dump the bit-map. |
| 396 | */ |
| 397 | |
| 398 | void dumpbits(bits, size) |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 399 | char *bits; |
| 400 | register int size; |
robbiew | 1b69b82 | 2002-12-04 19:28:37 +0000 | [diff] [blame] | 401 | { |
| 402 | #ifdef DEBUG |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 403 | register char *buf; |
robbiew | 1b69b82 | 2002-12-04 19:28:37 +0000 | [diff] [blame] | 404 | |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 405 | tst_resm(TINFO, "Bits array:"); |
| 406 | for (buf = bits; size > 0; --size, ++buf) { |
| 407 | if ((buf - bits) % 16 == 0) |
| 408 | tst_resm(TINFO, "\n%04x:\t", 8 * (buf - bits)); |
| 409 | tst_resm(TINFO, "%02x ", (int)*buf & 0xff); |
| 410 | } |
| 411 | tst_resm(TINFO, "\n"); |
robbiew | 1b69b82 | 2002-12-04 19:28:37 +0000 | [diff] [blame] | 412 | #endif |
| 413 | |
| 414 | } |
| 415 | |
| 416 | void term() |
| 417 | { |
| 418 | |
| 419 | if (getpid() == parent_pid) { |
| 420 | #ifdef DEBUG |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 421 | tst_resm(TINFO, "term - parent - got SIGTERM.\n"); |
robbiew | 1b69b82 | 2002-12-04 19:28:37 +0000 | [diff] [blame] | 422 | #endif |
| 423 | } else { |
| 424 | #ifdef DEBUG |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 425 | tst_resm(TINFO, "term1 - child - exiting\n"); |
robbiew | 1b69b82 | 2002-12-04 19:28:37 +0000 | [diff] [blame] | 426 | #endif |
| 427 | exit(0); |
| 428 | } |
Chris Dearman | ec6edca | 2012-10-17 19:54:01 -0700 | [diff] [blame] | 429 | } |