robbiew | e093b82 | 2003-01-10 18:24:49 +0000 | [diff] [blame] | 1 | /* IBM Corporation */ |
| 2 | /* 01/02/2003 Port to LTP avenkat@us.ibm.com */ |
| 3 | /* 06/30/2001 Port to Linux nsharoff@us.ibm.com */ |
| 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, |
subrata_modak | 4bb656a | 2009-02-26 12:02:09 +0000 | [diff] [blame] | 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
robbiew | e093b82 | 2003-01-10 18:24:49 +0000 | [diff] [blame] | 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See |
| 13 | * the GNU General Public License for more details. |
Garrett Cooper | 2c28215 | 2010-12-16 00:55:50 -0800 | [diff] [blame] | 14 | * |
robbiew | e093b82 | 2003-01-10 18:24:49 +0000 | [diff] [blame] | 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 | e093b82 | 2003-01-10 18:24:49 +0000 | [diff] [blame] | 18 | */ |
| 19 | |
subrata_modak | 4bb656a | 2009-02-26 12:02:09 +0000 | [diff] [blame] | 20 | #define _GNU_SOURCE 1 |
robbiew | e093b82 | 2003-01-10 18:24:49 +0000 | [diff] [blame] | 21 | #include <stdio.h> |
| 22 | #include <fcntl.h> |
| 23 | #include <signal.h> |
| 24 | #include <sys/mman.h> |
| 25 | #include <sys/wait.h> |
| 26 | #include <sys/stat.h> |
| 27 | #include <unistd.h> |
| 28 | #include <stdlib.h> |
| 29 | #include <errno.h> |
| 30 | #include <sys/types.h> |
| 31 | #include <limits.h> |
| 32 | /***** LTP Port *****/ |
| 33 | #include "test.h" |
robbiew | e093b82 | 2003-01-10 18:24:49 +0000 | [diff] [blame] | 34 | #define FAILED 0 |
| 35 | #define PASSED 1 |
| 36 | |
| 37 | int local_flag = PASSED; |
subrata_modak | 4bb656a | 2009-02-26 12:02:09 +0000 | [diff] [blame] | 38 | char *TCID = "mmapstress10"; |
robbiew | e093b82 | 2003-01-10 18:24:49 +0000 | [diff] [blame] | 39 | FILE *temp; |
| 40 | int TST_TOTAL = 1; |
robbiew | e093b82 | 2003-01-10 18:24:49 +0000 | [diff] [blame] | 41 | |
| 42 | int anyfail(); |
| 43 | void ok_exit(); |
| 44 | /***** ** ** *****/ |
| 45 | |
robbiew | e093b82 | 2003-01-10 18:24:49 +0000 | [diff] [blame] | 46 | /* |
| 47 | * This test stresses mmaps, specifically the code dealing with |
| 48 | * mapping of fragments. It forks a specified number of children, |
| 49 | * all of whom mmap the same file, make a given number of accesses |
| 50 | * to random pages in the map (reading & writing and comparing data). |
| 51 | * Then the child exits and the parent forks another to take its place. |
| 52 | * Each time a child is forked, it stats the file and maps the full |
| 53 | * length of the file. Meanwhile, another child is forked which |
subrata_modak | 4bb656a | 2009-02-26 12:02:09 +0000 | [diff] [blame] | 54 | * continually writes to the file. It loops writing some bytes (default |
robbiew | e093b82 | 2003-01-10 18:24:49 +0000 | [diff] [blame] | 55 | * 20), then sleeps some seconds (default 1). This causes the file |
| 56 | * to gradually grow, crossing fragment boundaries, etc. |
| 57 | * Then it forks yet *another* child who maps the file in extend |
| 58 | * mode, just to check out interaction. (Because this will cause |
| 59 | * 0 padding at end of file, children can't test as exactly as in tmmap - |
| 60 | * have to check for zero or pattern...) |
| 61 | * |
| 62 | * This program continues to run until it either receives a SIGINT, |
| 63 | * or times out (if a timeout value is specified). When either of |
| 64 | * these things happens, it cleans up its kids, then checks the |
| 65 | * file to make sure it has the correct data. |
| 66 | * |
| 67 | * usage: |
| 68 | * mmapstress10 -p nprocs [-t minutes -w nbytes -s secs -f filesize |
| 69 | * -S sparseoffset -r -o -m -l -d] |
| 70 | * where: |
| 71 | * -p nprocs - specifies the number of mapping children |
| 72 | * to create. (nprocs + 1 children actually |
| 73 | * get created, since one is the writer child) |
| 74 | * -t minutes - specifies minutes to run. If not specified, |
| 75 | * default is to run forever until a SIGINT |
| 76 | * is received. |
| 77 | * -w nbytes - specifies number of bytes for writer process |
| 78 | * to write at a time (i.e. between sleeps). |
| 79 | * defaults to GROWSIZE bytes. |
| 80 | * -s secs - specifies number of seconds for writer process |
| 81 | * to sleep between writes. Defaults to |
| 82 | * SLEEPTIME seconds. |
| 83 | * -f filesize - initial filesize (defaults to FILESIZE) |
| 84 | * -S sparseoffset - when non-zero, causes a sparse area to |
| 85 | * be left before the data, meaning that the |
| 86 | * actual initial file size is sparseoffset + |
| 87 | * filesize. Useful for testing large files. |
| 88 | * (default is 0). |
| 89 | * -r - randomize number of pages map children check. |
| 90 | * (random % MAXLOOPS). If not specified, each |
| 91 | * child checks MAXLOOPS pages. |
| 92 | * -o - randomize offset of file to map. (default is 0) |
| 93 | * -m - do random msync/fsyncs as well |
| 94 | * -l - if set, the output file is not removed on |
| 95 | * program exit. |
| 96 | * -d - enable debug outputd |
| 97 | * |
| 98 | * Compile with -DLARGE_FILE to enable file sizes > 2 GB. |
| 99 | */ |
| 100 | |
| 101 | #define MAXLOOPS 500 /* max pages for map children to write */ |
| 102 | #define GROWSIZE 20 /* # bytes to write per write call */ |
| 103 | #define SLEEPTIME 1 /* # secs to sleep between writes */ |
subrata_modak | bdbaec5 | 2009-02-26 12:14:51 +0000 | [diff] [blame] | 104 | #define FILESIZE 4096 /* initial filesize set up by parent */ |
robbiew | 4be9098 | 2003-07-31 15:15:25 +0000 | [diff] [blame] | 105 | #ifdef roundup |
| 106 | #undef roundup |
| 107 | #endif |
robbiew | e093b82 | 2003-01-10 18:24:49 +0000 | [diff] [blame] | 108 | #define roundup(x, y) ((((x)+((y)-1))/(y))*(y)) |
| 109 | #define min(x, y) (((x) < (y)) ? (x) : (y)) |
| 110 | |
| 111 | #define SIZE_MAX UINT_MAX |
| 112 | |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 113 | extern time_t time(time_t *); |
| 114 | extern char *ctime(const time_t *); |
robbiew | e093b82 | 2003-01-10 18:24:49 +0000 | [diff] [blame] | 115 | extern void *malloc(size_t); |
| 116 | extern void exit(int); |
| 117 | extern long lrand48(void); |
| 118 | extern void srand(unsigned); |
| 119 | extern void srand48(long); |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 120 | extern int rand(void); |
| 121 | extern int atoi(const char *); |
robbiew | e093b82 | 2003-01-10 18:24:49 +0000 | [diff] [blame] | 122 | |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 123 | char *usage = |
| 124 | "-p nprocs [-t minutes -w nbytes -s secs -f fsize -S sparseoffset -r -o -m -l -d]"; |
robbiew | e093b82 | 2003-01-10 18:24:49 +0000 | [diff] [blame] | 125 | |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 126 | typedef unsigned char uchar_t; //Ananda 12/17/02 |
robbiew | e093b82 | 2003-01-10 18:24:49 +0000 | [diff] [blame] | 127 | |
robbiew | e093b82 | 2003-01-10 18:24:49 +0000 | [diff] [blame] | 128 | void child_mapper(char *file, unsigned procno, unsigned nprocs); |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 129 | void child_writer(char *file, uchar_t * buf); |
| 130 | int fileokay(char *file, uchar_t * expbuf); |
robbiew | e093b82 | 2003-01-10 18:24:49 +0000 | [diff] [blame] | 131 | unsigned int initrand(void); |
| 132 | void finish(int sig); |
| 133 | void clean_up_file(int sig); |
| 134 | int finished = 0; |
| 135 | int leavefile = 0; |
| 136 | |
| 137 | int debug = 0; |
| 138 | int growsize = GROWSIZE; |
| 139 | int sleeptime = SLEEPTIME; |
| 140 | #ifdef LARGE_FILE |
| 141 | off64_t filesize = FILESIZE; |
| 142 | off64_t sparseoffset = 0; |
| 143 | #else /* LARGE_FILE */ |
| 144 | off_t filesize = FILESIZE; |
| 145 | off_t sparseoffset = 0; |
| 146 | #endif /* LARGE_FILE */ |
| 147 | unsigned randloops = 0; |
| 148 | unsigned dosync = 0; |
| 149 | unsigned do_offset = 0; |
| 150 | unsigned pattern = 0; |
| 151 | char filename[64]; |
| 152 | |
Subrata Modak | 76a720a | 2010-07-03 21:08:18 +0530 | [diff] [blame] | 153 | void clean_mapper(int sig); |
| 154 | void clean_writer(int sig); |
| 155 | |
| 156 | int fd_mapper = 0; |
| 157 | caddr_t maddr_mapper; |
| 158 | size_t mapsize_mapper; |
| 159 | |
| 160 | int fd_writer = 0; |
| 161 | |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 162 | int main(int argc, char *argv[]) |
robbiew | e093b82 | 2003-01-10 18:24:49 +0000 | [diff] [blame] | 163 | { |
| 164 | char *progname; |
| 165 | int fd; |
| 166 | int c; |
| 167 | extern char *optarg; |
| 168 | unsigned nprocs = 0; |
| 169 | unsigned procno; |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 170 | pid_t *pidarray = NULL; |
robbiew | e093b82 | 2003-01-10 18:24:49 +0000 | [diff] [blame] | 171 | pid_t pid; |
| 172 | pid_t wr_pid = 0; |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 173 | uchar_t *buf = NULL; |
robbiew | e093b82 | 2003-01-10 18:24:49 +0000 | [diff] [blame] | 174 | unsigned int seed; |
| 175 | int pagesize = sysconf(_SC_PAGE_SIZE); |
subrata_modak | ae1b395 | 2008-10-30 03:53:09 +0000 | [diff] [blame] | 176 | float alarmtime = 0; |
robbiew | e093b82 | 2003-01-10 18:24:49 +0000 | [diff] [blame] | 177 | struct sigaction sa; |
| 178 | unsigned i; |
| 179 | int write_cnt; |
| 180 | uchar_t data; |
| 181 | int no_prob = 0; |
| 182 | int wait_stat; |
| 183 | time_t t; |
| 184 | #ifdef LARGE_FILE |
| 185 | off64_t bytes_left; |
| 186 | #else /* LARGE_FILE */ |
| 187 | off_t bytes_left; |
| 188 | #endif /* LARGE_FILE */ |
| 189 | |
| 190 | progname = *argv; |
| 191 | tst_tmpdir(); |
| 192 | if (argc < 2) { |
| 193 | (void)fprintf(stderr, "usage: %s %s\n", progname, usage); |
| 194 | exit(1); |
| 195 | } |
| 196 | |
| 197 | while ((c = getopt(argc, argv, "S:omdlrf:p:t:w:s:")) != -1) { |
| 198 | switch (c) { |
| 199 | case 'd': |
| 200 | debug = 1; |
| 201 | break; |
| 202 | case 't': |
subrata_modak | ae1b395 | 2008-10-30 03:53:09 +0000 | [diff] [blame] | 203 | alarmtime = atof(optarg) * 60; |
robbiew | e093b82 | 2003-01-10 18:24:49 +0000 | [diff] [blame] | 204 | break; |
| 205 | case 'p': |
| 206 | nprocs = atoi(optarg); |
| 207 | break; |
| 208 | case 'l': |
| 209 | leavefile = 1; |
| 210 | break; |
| 211 | case 's': |
| 212 | sleeptime = atoi(optarg); |
| 213 | if (sleeptime < 0) { |
| 214 | (void)fprintf(stderr, "error: negative " |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 215 | "sleeptime\n"); |
| 216 | anyfail(); |
robbiew | e093b82 | 2003-01-10 18:24:49 +0000 | [diff] [blame] | 217 | } |
| 218 | break; |
| 219 | case 'w': |
| 220 | growsize = atoi(optarg); |
| 221 | if (growsize < 0) { |
| 222 | (void)fprintf(stderr, "error: negative write " |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 223 | "size\n"); |
| 224 | anyfail(); |
robbiew | e093b82 | 2003-01-10 18:24:49 +0000 | [diff] [blame] | 225 | } |
| 226 | break; |
| 227 | case 'f': |
| 228 | #ifdef LARGE_FILE |
| 229 | filesize = atoll(optarg); |
| 230 | #else /* LARGE_FILE */ |
| 231 | filesize = atoi(optarg); |
| 232 | #endif /* LARGE_FILE */ |
| 233 | if (filesize < 0) { |
| 234 | (void)fprintf(stderr, "error: negative " |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 235 | "filesize\n"); |
| 236 | anyfail(); |
robbiew | e093b82 | 2003-01-10 18:24:49 +0000 | [diff] [blame] | 237 | } |
| 238 | break; |
| 239 | case 'r': |
| 240 | randloops = 1; |
| 241 | break; |
| 242 | case 'm': |
| 243 | dosync = 1; |
| 244 | break; |
| 245 | case 'o': |
| 246 | do_offset = 1; |
| 247 | break; |
| 248 | case 'S': |
| 249 | #ifdef LARGE_FILE |
| 250 | sparseoffset = atoll(optarg); |
| 251 | #else /* LARGE_FILE */ |
| 252 | sparseoffset = atoi(optarg); |
| 253 | #endif /* LARGE_FILE */ |
| 254 | if (sparseoffset % pagesize != 0) { |
subrata_modak | 4bb656a | 2009-02-26 12:02:09 +0000 | [diff] [blame] | 255 | fprintf(stderr, |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 256 | "sparseoffset must be pagesize multiple\n"); |
| 257 | anyfail(); |
robbiew | e093b82 | 2003-01-10 18:24:49 +0000 | [diff] [blame] | 258 | } |
| 259 | break; |
| 260 | default: |
| 261 | (void)fprintf(stderr, "usage: %s %s\n", progname, |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 262 | usage); |
robbiew | e093b82 | 2003-01-10 18:24:49 +0000 | [diff] [blame] | 263 | anyfail(); |
| 264 | } |
| 265 | } |
| 266 | |
| 267 | if (nprocs > 255) { |
| 268 | (void)fprintf(stderr, "invalid nprocs %d - (range 0-255)\n", |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 269 | nprocs); |
| 270 | anyfail(); |
robbiew | e093b82 | 2003-01-10 18:24:49 +0000 | [diff] [blame] | 271 | } |
| 272 | (void)time(&t); |
| 273 | //(void)printf("%s: Started %s", argv[0], ctime(&t)); LTP Port |
| 274 | |
| 275 | (void)sprintf(filename, "%sout.%d", progname, getpid()); |
| 276 | seed = initrand(); |
| 277 | pattern = seed & 0xff; |
| 278 | |
| 279 | if (debug) { |
| 280 | #ifdef LARGE_FILE |
subrata_modak | 4bb656a | 2009-02-26 12:02:09 +0000 | [diff] [blame] | 281 | (void)printf("creating file <%s> with %Ld bytes, pattern %d\n", |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 282 | filename, filesize, pattern); |
robbiew | e093b82 | 2003-01-10 18:24:49 +0000 | [diff] [blame] | 283 | #else /* LARGE_FILE */ |
subrata_modak | 4bb656a | 2009-02-26 12:02:09 +0000 | [diff] [blame] | 284 | (void)printf("creating file <%s> with %ld bytes, pattern %d\n", |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 285 | filename, filesize, pattern); |
robbiew | e093b82 | 2003-01-10 18:24:49 +0000 | [diff] [blame] | 286 | #endif /* LARGE_FILE */ |
| 287 | if (alarmtime) |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 288 | (void)printf("running for %f minutes\n", |
| 289 | alarmtime / 60); |
robbiew | e093b82 | 2003-01-10 18:24:49 +0000 | [diff] [blame] | 290 | else |
| 291 | (void)printf("running with no time limit\n"); |
| 292 | } |
| 293 | |
| 294 | /* |
| 295 | * Plan for death by signal. User may have specified |
| 296 | * a time limit, in which case set an alarm and catch SIGALRM. |
| 297 | * Also catch and cleanup with SIGINT, SIGQUIT, and SIGTERM. |
| 298 | */ |
| 299 | sa.sa_handler = finish; |
| 300 | sa.sa_flags = 0; |
| 301 | if (sigemptyset(&sa.sa_mask)) { |
| 302 | perror("sigempty error"); |
| 303 | goto cleanup; |
| 304 | } |
| 305 | |
| 306 | if (sigaction(SIGINT, &sa, 0) == -1) { |
| 307 | perror("sigaction error SIGINT"); |
| 308 | goto cleanup; |
| 309 | } |
| 310 | if (alarmtime) { |
| 311 | if (sigaction(SIGALRM, &sa, 0) == -1) { |
| 312 | perror("sigaction error"); |
| 313 | goto cleanup; |
| 314 | } |
| 315 | (void)alarm(alarmtime); |
| 316 | } |
| 317 | /* If we get a SIGQUIT or SIGTERM, clean up and exit immediately. */ |
| 318 | sa.sa_handler = clean_up_file; |
| 319 | if (sigaction(SIGQUIT, &sa, 0) == -1) { |
| 320 | perror("sigaction error SIGQUIT"); |
| 321 | goto cleanup; |
| 322 | } |
| 323 | if (sigaction(SIGTERM, &sa, 0) == -1) { |
| 324 | perror("sigaction error SIGTERM"); |
| 325 | goto cleanup; |
| 326 | } |
robbiew | e093b82 | 2003-01-10 18:24:49 +0000 | [diff] [blame] | 327 | #ifdef LARGE_FILE |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 328 | if ((fd = open64(filename, O_CREAT | O_TRUNC | O_RDWR, 0664)) == -1) { |
robbiew | e093b82 | 2003-01-10 18:24:49 +0000 | [diff] [blame] | 329 | #else /* LARGE_FILE */ |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 330 | if ((fd = open(filename, O_CREAT | O_TRUNC | O_RDWR, 0664)) == -1) { |
robbiew | e093b82 | 2003-01-10 18:24:49 +0000 | [diff] [blame] | 331 | #endif /* LARGE_FILE */ |
| 332 | perror("open error"); |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 333 | anyfail(); |
robbiew | e093b82 | 2003-01-10 18:24:49 +0000 | [diff] [blame] | 334 | } |
| 335 | |
Cyril Hrubis | d218f34 | 2014-09-23 13:14:56 +0200 | [diff] [blame] | 336 | if ((buf = malloc(pagesize + growsize)) == NULL |
| 337 | || (pidarray = malloc(nprocs * sizeof(pid_t))) == NULL) { |
robbiew | e093b82 | 2003-01-10 18:24:49 +0000 | [diff] [blame] | 338 | perror("malloc error"); |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 339 | anyfail(); |
robbiew | e093b82 | 2003-01-10 18:24:49 +0000 | [diff] [blame] | 340 | } |
| 341 | |
| 342 | for (i = 0; i < nprocs; i++) |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 343 | *(pidarray + i) = 0; |
robbiew | e093b82 | 2003-01-10 18:24:49 +0000 | [diff] [blame] | 344 | |
| 345 | for (i = 0, data = 0; i < pagesize; i++) { |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 346 | *(buf + i) = (data + pattern) & 0xff; |
robbiew | e093b82 | 2003-01-10 18:24:49 +0000 | [diff] [blame] | 347 | if (++data == nprocs) |
| 348 | data = 0; |
| 349 | } |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 350 | for (data = 0; i < pagesize + growsize; i++) { |
| 351 | *(buf + i) = (data + pattern) & 0xff; |
robbiew | e093b82 | 2003-01-10 18:24:49 +0000 | [diff] [blame] | 352 | if (++data == nprocs) |
| 353 | data = 0; |
| 354 | } |
| 355 | |
| 356 | #ifdef LARGE_FILE |
| 357 | if (lseek64(fd, sparseoffset, SEEK_SET) < 0) { |
| 358 | #else /* LARGE_FILE */ |
| 359 | if (lseek(fd, sparseoffset, SEEK_SET) < 0) { |
| 360 | #endif /* LARGE_FILE */ |
| 361 | perror("lseek"); |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 362 | anyfail(); |
robbiew | e093b82 | 2003-01-10 18:24:49 +0000 | [diff] [blame] | 363 | } |
| 364 | |
| 365 | for (bytes_left = filesize; bytes_left; bytes_left -= c) { |
| 366 | write_cnt = min(pagesize, bytes_left); |
| 367 | if ((c = write(fd, (char *)buf, write_cnt)) != write_cnt) { |
| 368 | if (c == -1) { |
| 369 | perror("write error"); |
| 370 | } else { |
| 371 | (void)fprintf(stderr, "write: wrote %d of %d " |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 372 | "bytes\n", c, write_cnt); |
robbiew | e093b82 | 2003-01-10 18:24:49 +0000 | [diff] [blame] | 373 | } |
| 374 | (void)close(fd); |
| 375 | (void)unlink(filename); |
| 376 | anyfail(); |
| 377 | } |
| 378 | } |
| 379 | |
| 380 | (void)close(fd); |
| 381 | |
| 382 | /* |
| 383 | * Fork off mmap children. |
| 384 | */ |
| 385 | for (procno = 0; procno < nprocs; procno++) { |
| 386 | switch (pid = fork()) { |
| 387 | |
| 388 | case -1: |
| 389 | perror("fork error"); |
| 390 | goto cleanup; |
| 391 | |
| 392 | case 0: |
| 393 | child_mapper(filename, procno, nprocs); |
| 394 | exit(0); |
| 395 | |
| 396 | default: |
| 397 | pidarray[procno] = pid; |
| 398 | } |
| 399 | } |
| 400 | |
| 401 | /* |
| 402 | * Now fork off an additional process to continually |
| 403 | * write to (and grow) the file. |
| 404 | */ |
| 405 | if ((wr_pid = fork()) == -1) { |
| 406 | perror("fork error"); |
| 407 | goto cleanup; |
| 408 | } else if (wr_pid == 0) { /* child */ |
| 409 | child_writer(filename, buf); |
| 410 | exit(0); |
| 411 | } |
| 412 | |
| 413 | /* |
| 414 | * Now wait for children and refork them as needed. |
| 415 | */ |
subrata_modak | bdbaec5 | 2009-02-26 12:14:51 +0000 | [diff] [blame] | 416 | |
robbiew | e093b82 | 2003-01-10 18:24:49 +0000 | [diff] [blame] | 417 | while (!finished) { |
| 418 | pid = wait(&wait_stat); |
| 419 | /* |
| 420 | * Block signals while processing child exit. |
| 421 | */ |
| 422 | |
| 423 | if (sighold(SIGALRM) || sighold(SIGINT)) { |
| 424 | perror("sighold error"); |
| 425 | goto cleanup; |
| 426 | } |
| 427 | |
| 428 | if (pid != -1) { |
| 429 | /* |
| 430 | * Check exit status, then refork with the |
| 431 | * appropriate procno. |
| 432 | */ |
subrata_modak | 4bb656a | 2009-02-26 12:02:09 +0000 | [diff] [blame] | 433 | if (!WIFEXITED(wait_stat) |
robbiew | e093b82 | 2003-01-10 18:24:49 +0000 | [diff] [blame] | 434 | || WEXITSTATUS(wait_stat) != 0) { |
| 435 | (void)fprintf(stderr, "child exit with err " |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 436 | "<x%x>\n", wait_stat); |
robbiew | e093b82 | 2003-01-10 18:24:49 +0000 | [diff] [blame] | 437 | goto cleanup; |
| 438 | } |
| 439 | for (i = 0; i < nprocs; i++) |
| 440 | if (pid == pidarray[i]) |
| 441 | break; |
| 442 | if (i == nprocs) { |
| 443 | if (pid == wr_pid) { |
subrata_modak | 4bb656a | 2009-02-26 12:02:09 +0000 | [diff] [blame] | 444 | (void)fprintf(stderr, |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 445 | "writer child unexpected exit <x%x>\n", |
| 446 | wait_stat); |
robbiew | e093b82 | 2003-01-10 18:24:49 +0000 | [diff] [blame] | 447 | wr_pid = 0; |
| 448 | } else |
| 449 | (void)fprintf(stderr, "unknown child " |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 450 | "pid %d, <x%x>\n", |
| 451 | pid, wait_stat); |
robbiew | e093b82 | 2003-01-10 18:24:49 +0000 | [diff] [blame] | 452 | goto cleanup; |
| 453 | } |
| 454 | |
| 455 | if ((pid = fork()) == -1) { |
| 456 | perror("fork error"); |
| 457 | pidarray[i] = 0; |
| 458 | goto cleanup; |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 459 | } else if (pid == 0) { /* child */ |
robbiew | e093b82 | 2003-01-10 18:24:49 +0000 | [diff] [blame] | 460 | child_mapper(filename, i, nprocs); |
| 461 | exit(0); |
| 462 | } else |
| 463 | pidarray[i] = pid; |
| 464 | } else { |
| 465 | /* |
| 466 | * wait returned an error. If EINTR, then |
| 467 | * normal finish, else it's an unexpected |
| 468 | * error... |
| 469 | */ |
| 470 | if (errno != EINTR || !finished) { |
| 471 | perror("unexpected wait error"); |
| 472 | goto cleanup; |
| 473 | } |
| 474 | } |
| 475 | if (sigrelse(SIGALRM) || sigrelse(SIGINT)) { |
| 476 | perror("sigrelse error"); |
| 477 | goto cleanup; |
| 478 | } |
| 479 | } |
subrata_modak | bdbaec5 | 2009-02-26 12:14:51 +0000 | [diff] [blame] | 480 | |
robbiew | e093b82 | 2003-01-10 18:24:49 +0000 | [diff] [blame] | 481 | /* |
| 482 | * Finished! Check the file for sanity, then kill all |
| 483 | * the children and done!. |
| 484 | */ |
| 485 | |
| 486 | (void)alarm(0); |
| 487 | no_prob = 1; |
| 488 | |
| 489 | cleanup: |
| 490 | for (i = 0; i < nprocs; i++) |
Subrata Modak | 76a720a | 2010-07-03 21:08:18 +0530 | [diff] [blame] | 491 | (void)kill(pidarray[i], SIGUSR1); |
| 492 | (void)kill(wr_pid, SIGUSR1); |
robbiew | e093b82 | 2003-01-10 18:24:49 +0000 | [diff] [blame] | 493 | |
| 494 | while (wait(&wait_stat) != -1 || errno != ECHILD) |
| 495 | continue; |
| 496 | |
| 497 | if (no_prob) { /* only check file if no errors */ |
| 498 | if (!fileokay(filename, buf)) { |
| 499 | (void)fprintf(stderr, "file data incorrect!\n"); |
| 500 | (void)printf(" leaving file <%s>\n", filename); |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 501 | anyfail(); |
robbiew | e093b82 | 2003-01-10 18:24:49 +0000 | [diff] [blame] | 502 | |
| 503 | } else { |
| 504 | (void)printf("file data okay\n"); |
| 505 | if (!leavefile) |
| 506 | (void)unlink(filename); |
| 507 | } |
| 508 | } else |
| 509 | (void)printf(" leaving file <%s>\n", filename); |
subrata_modak | bdbaec5 | 2009-02-26 12:14:51 +0000 | [diff] [blame] | 510 | |
robbiew | e093b82 | 2003-01-10 18:24:49 +0000 | [diff] [blame] | 511 | (void)time(&t); |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 512 | // (void)printf("%s: Finished %s", argv[0], ctime(&t)); LTP Port |
robbiew | e093b82 | 2003-01-10 18:24:49 +0000 | [diff] [blame] | 513 | ok_exit(); |
Garrett Cooper | 2c28215 | 2010-12-16 00:55:50 -0800 | [diff] [blame] | 514 | tst_exit(); |
robbiew | e093b82 | 2003-01-10 18:24:49 +0000 | [diff] [blame] | 515 | } |
| 516 | |
robbiew | e093b82 | 2003-01-10 18:24:49 +0000 | [diff] [blame] | 517 | /* |
| 518 | * Child process that reads/writes map. The child stats the file |
| 519 | * to determine the size, maps the size of the file, then reads/writes |
| 520 | * its own locations on random pages of the map (its locations being |
| 521 | * determined based on nprocs & procno). After a specific number of |
| 522 | * iterations, it exits. |
| 523 | */ |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 524 | void child_mapper(char *file, unsigned procno, unsigned nprocs) |
robbiew | e093b82 | 2003-01-10 18:24:49 +0000 | [diff] [blame] | 525 | { |
| 526 | #ifdef LARGE_FILE |
| 527 | struct stat64 statbuf; |
| 528 | off64_t filesize; |
| 529 | off64_t offset; |
| 530 | #else /* LARGE_FILE */ |
| 531 | struct stat statbuf; |
| 532 | off_t filesize; |
| 533 | off_t offset; |
| 534 | #endif /* LARGE_FILE */ |
| 535 | size_t validsize; |
Subrata Modak | 76a720a | 2010-07-03 21:08:18 +0530 | [diff] [blame] | 536 | caddr_t paddr; |
robbiew | e093b82 | 2003-01-10 18:24:49 +0000 | [diff] [blame] | 537 | int pagesize = sysconf(_SC_PAGE_SIZE); |
| 538 | unsigned randpage; |
| 539 | unsigned int seed; |
| 540 | unsigned loopcnt; |
| 541 | unsigned nloops; |
subrata_modak | 4bb656a | 2009-02-26 12:02:09 +0000 | [diff] [blame] | 542 | unsigned mappages; |
robbiew | e093b82 | 2003-01-10 18:24:49 +0000 | [diff] [blame] | 543 | unsigned mapflags; |
| 544 | unsigned i; |
Subrata Modak | 76a720a | 2010-07-03 21:08:18 +0530 | [diff] [blame] | 545 | struct sigaction sa_mapper; |
robbiew | e093b82 | 2003-01-10 18:24:49 +0000 | [diff] [blame] | 546 | |
| 547 | mapflags = MAP_SHARED; |
| 548 | |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 549 | seed = initrand(); /* initialize random seed */ |
robbiew | e093b82 | 2003-01-10 18:24:49 +0000 | [diff] [blame] | 550 | |
Subrata Modak | 76a720a | 2010-07-03 21:08:18 +0530 | [diff] [blame] | 551 | sa_mapper.sa_handler = clean_mapper; |
| 552 | sa_mapper.sa_flags = 0; |
| 553 | if (sigemptyset(&sa_mapper.sa_mask)) { |
| 554 | perror("sigempty error"); |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 555 | anyfail(); |
Subrata Modak | 76a720a | 2010-07-03 21:08:18 +0530 | [diff] [blame] | 556 | } |
| 557 | |
| 558 | if (sigaction(SIGUSR1, &sa_mapper, 0) == -1) { |
| 559 | perror("sigaction error SIGUSR1"); |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 560 | anyfail(); |
Subrata Modak | 76a720a | 2010-07-03 21:08:18 +0530 | [diff] [blame] | 561 | } |
robbiew | e093b82 | 2003-01-10 18:24:49 +0000 | [diff] [blame] | 562 | #ifdef LARGE_FILE |
Subrata Modak | 76a720a | 2010-07-03 21:08:18 +0530 | [diff] [blame] | 563 | if ((fd_mapper = open64(file, O_RDWR)) == -1) { |
robbiew | e093b82 | 2003-01-10 18:24:49 +0000 | [diff] [blame] | 564 | #else /* LARGE_FILE */ |
Subrata Modak | 76a720a | 2010-07-03 21:08:18 +0530 | [diff] [blame] | 565 | if ((fd_mapper = open(file, O_RDWR)) == -1) { |
robbiew | e093b82 | 2003-01-10 18:24:49 +0000 | [diff] [blame] | 566 | #endif /* LARGE_FILE */ |
| 567 | perror("open error"); |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 568 | anyfail(); |
robbiew | e093b82 | 2003-01-10 18:24:49 +0000 | [diff] [blame] | 569 | } |
robbiew | e093b82 | 2003-01-10 18:24:49 +0000 | [diff] [blame] | 570 | #ifdef LARGE_FILE |
Subrata Modak | 76a720a | 2010-07-03 21:08:18 +0530 | [diff] [blame] | 571 | if (fstat64(fd_mapper, &statbuf) == -1) { |
robbiew | e093b82 | 2003-01-10 18:24:49 +0000 | [diff] [blame] | 572 | #else /* LARGE_FILE */ |
Subrata Modak | 76a720a | 2010-07-03 21:08:18 +0530 | [diff] [blame] | 573 | if (fstat(fd_mapper, &statbuf) == -1) { |
robbiew | e093b82 | 2003-01-10 18:24:49 +0000 | [diff] [blame] | 574 | #endif /* LARGE_FILE */ |
| 575 | perror("stat error"); |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 576 | anyfail(); |
robbiew | e093b82 | 2003-01-10 18:24:49 +0000 | [diff] [blame] | 577 | } |
| 578 | filesize = statbuf.st_size; |
| 579 | |
| 580 | if (statbuf.st_size - sparseoffset > SIZE_MAX) { |
| 581 | fprintf(stderr, "size_t overflow when setting up map\n"); |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 582 | anyfail(); |
robbiew | e093b82 | 2003-01-10 18:24:49 +0000 | [diff] [blame] | 583 | } |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 584 | mapsize_mapper = (size_t) (statbuf.st_size - sparseoffset); |
Subrata Modak | 76a720a | 2010-07-03 21:08:18 +0530 | [diff] [blame] | 585 | mappages = roundup(mapsize_mapper, pagesize) / pagesize; |
robbiew | e093b82 | 2003-01-10 18:24:49 +0000 | [diff] [blame] | 586 | offset = sparseoffset; |
| 587 | if (do_offset) { |
| 588 | int pageoffset = lrand48() % mappages; |
| 589 | int byteoffset = pageoffset * pagesize; |
| 590 | offset += byteoffset; |
Subrata Modak | 76a720a | 2010-07-03 21:08:18 +0530 | [diff] [blame] | 591 | mapsize_mapper -= byteoffset; |
robbiew | e093b82 | 2003-01-10 18:24:49 +0000 | [diff] [blame] | 592 | mappages -= pageoffset; |
| 593 | } |
robbiew | e093b82 | 2003-01-10 18:24:49 +0000 | [diff] [blame] | 594 | #ifdef LARGE_FILE |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 595 | if ((maddr_mapper = mmap64(0, mapsize_mapper, PROT_READ | PROT_WRITE, |
| 596 | mapflags, fd_mapper, |
| 597 | offset)) == (caddr_t) - 1) { |
robbiew | e093b82 | 2003-01-10 18:24:49 +0000 | [diff] [blame] | 598 | #else /* LARGE_FILE */ |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 599 | if ((maddr_mapper = mmap(0, mapsize_mapper, PROT_READ | PROT_WRITE, |
| 600 | mapflags, fd_mapper, |
| 601 | offset)) == (caddr_t) - 1) { |
robbiew | e093b82 | 2003-01-10 18:24:49 +0000 | [diff] [blame] | 602 | #endif /* LARGE_FILE */ |
| 603 | perror("mmap error"); |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 604 | anyfail(); |
robbiew | e093b82 | 2003-01-10 18:24:49 +0000 | [diff] [blame] | 605 | } |
| 606 | |
Subrata Modak | 76a720a | 2010-07-03 21:08:18 +0530 | [diff] [blame] | 607 | (void)close(fd_mapper); |
robbiew | e093b82 | 2003-01-10 18:24:49 +0000 | [diff] [blame] | 608 | |
| 609 | nloops = (randloops) ? (lrand48() % MAXLOOPS) : MAXLOOPS; |
| 610 | |
| 611 | if (debug) { |
| 612 | #ifdef LARGE_FILE |
| 613 | (void)printf("child %d (pid %ld): seed %d, fsize %Ld, " |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 614 | "mapsize %d, off %Ld, loop %d\n", |
| 615 | procno, getpid(), seed, filesize, mapsize_mapper, |
| 616 | offset / pagesize, nloops); |
robbiew | e093b82 | 2003-01-10 18:24:49 +0000 | [diff] [blame] | 617 | #else /* LARGE_FILE */ |
| 618 | (void)printf("child %d (pid %d): seed %d, fsize %ld, " |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 619 | "mapsize %ld, off %ld, loop %d\n", |
| 620 | procno, getpid(), seed, filesize, |
| 621 | (long)mapsize_mapper, offset / pagesize, nloops); |
robbiew | e093b82 | 2003-01-10 18:24:49 +0000 | [diff] [blame] | 622 | #endif /* LARGE_FILE */ |
| 623 | } |
| 624 | |
| 625 | /* |
| 626 | * Now loop read/writing random pages. |
| 627 | */ |
| 628 | for (loopcnt = 0; loopcnt < nloops; loopcnt++) { |
| 629 | randpage = lrand48() % mappages; |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 630 | paddr = maddr_mapper + (randpage * pagesize); /* page address */ |
robbiew | e093b82 | 2003-01-10 18:24:49 +0000 | [diff] [blame] | 631 | |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 632 | if (randpage < mappages - 1 || !(mapsize_mapper % pagesize)) |
robbiew | e093b82 | 2003-01-10 18:24:49 +0000 | [diff] [blame] | 633 | validsize = pagesize; |
| 634 | else |
Subrata Modak | 76a720a | 2010-07-03 21:08:18 +0530 | [diff] [blame] | 635 | validsize = mapsize_mapper % pagesize; |
robbiew | e093b82 | 2003-01-10 18:24:49 +0000 | [diff] [blame] | 636 | |
| 637 | /* |
| 638 | * Because one child is mapping file in extend mode, |
| 639 | * it may be padded with zeros at end. So we can't |
| 640 | * do an exact check -- accept known pattern OR zeros. |
| 641 | */ |
| 642 | for (i = procno; i < validsize; i += nprocs) { |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 643 | if (*((unsigned char *)(paddr + i)) |
robbiew | e093b82 | 2003-01-10 18:24:49 +0000 | [diff] [blame] | 644 | != ((procno + pattern) & 0xff) |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 645 | && *((unsigned char *)(paddr + i)) != 0) { |
robbiew | e093b82 | 2003-01-10 18:24:49 +0000 | [diff] [blame] | 646 | (void)fprintf(stderr, "child %d: invalid data " |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 647 | "<x%x>", procno, |
| 648 | *((unsigned char *)(paddr + i))); |
| 649 | (void)fprintf(stderr, |
| 650 | " at pg %d off %d, exp " |
| 651 | "<x%x>\n", randpage, i, |
| 652 | (procno + pattern) & 0xff); |
| 653 | anyfail(); |
robbiew | e093b82 | 2003-01-10 18:24:49 +0000 | [diff] [blame] | 654 | } |
| 655 | /* |
| 656 | * Now write it. |
| 657 | */ |
| 658 | |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 659 | *(paddr + i) = (procno + pattern) & 0xff; |
robbiew | e093b82 | 2003-01-10 18:24:49 +0000 | [diff] [blame] | 660 | } |
| 661 | } |
| 662 | if (dosync) { |
| 663 | /* |
| 664 | * Exercise msync() as well! |
| 665 | */ |
| 666 | randpage = lrand48() % mappages; |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 667 | paddr = maddr_mapper + (randpage * pagesize); /* page address */ |
| 668 | if (msync(paddr, (mappages - randpage) * pagesize, |
| 669 | MS_SYNC) == -1) { |
robbiew | e093b82 | 2003-01-10 18:24:49 +0000 | [diff] [blame] | 670 | perror("msync error"); |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 671 | anyfail(); |
robbiew | e093b82 | 2003-01-10 18:24:49 +0000 | [diff] [blame] | 672 | } |
| 673 | } |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 674 | if (munmap(maddr_mapper, mapsize_mapper) == -1) { |
Subrata Modak | 76a720a | 2010-07-03 21:08:18 +0530 | [diff] [blame] | 675 | perror("munmap failed"); |
| 676 | anyfail(); |
| 677 | } |
robbiew | e093b82 | 2003-01-10 18:24:49 +0000 | [diff] [blame] | 678 | exit(0); |
| 679 | } |
| 680 | |
| 681 | /* |
| 682 | * child_writer |
| 683 | * The child process that continually (and slowly!!) grows |
| 684 | * the file. The purpose of this is to exercise the code |
subrata_modak | 4bb656a | 2009-02-26 12:02:09 +0000 | [diff] [blame] | 685 | * supporting mapping of fragments. The map children are |
robbiew | e093b82 | 2003-01-10 18:24:49 +0000 | [diff] [blame] | 686 | * constantly reforking and will pick up the map changes, etc. |
| 687 | * This process executes until signalled (i.e. has no exit!) |
subrata_modak | bdbaec5 | 2009-02-26 12:14:51 +0000 | [diff] [blame] | 688 | * unless error. |
robbiew | e093b82 | 2003-01-10 18:24:49 +0000 | [diff] [blame] | 689 | */ |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 690 | void child_writer(char *file, uchar_t * buf) |
| 691 | { /* buf already set up in main */ |
Subrata Modak | 76a720a | 2010-07-03 21:08:18 +0530 | [diff] [blame] | 692 | struct sigaction sa_writer; |
| 693 | |
| 694 | sa_writer.sa_handler = clean_writer; |
| 695 | sa_writer.sa_flags = 0; |
| 696 | if (sigemptyset(&sa_writer.sa_mask)) { |
| 697 | perror("sigempty error"); |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 698 | anyfail(); |
Subrata Modak | 76a720a | 2010-07-03 21:08:18 +0530 | [diff] [blame] | 699 | } |
| 700 | |
| 701 | if (sigaction(SIGUSR1, &sa_writer, 0) == -1) { |
| 702 | perror("sigaction error SIGUSR1"); |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 703 | anyfail(); |
Subrata Modak | 76a720a | 2010-07-03 21:08:18 +0530 | [diff] [blame] | 704 | } |
robbiew | e093b82 | 2003-01-10 18:24:49 +0000 | [diff] [blame] | 705 | #ifdef LARGE_FILE |
| 706 | struct stat64 statbuf; |
| 707 | off64_t off; |
| 708 | #else /* LARGE_FILE */ |
| 709 | struct stat statbuf; |
| 710 | off_t off; |
| 711 | #endif /* LARGE_FILE */ |
| 712 | int pagesize = sysconf(_SC_PAGE_SIZE); |
| 713 | uchar_t *p; |
| 714 | int cnt; |
| 715 | |
| 716 | #ifdef LARGE_FILE |
Subrata Modak | 76a720a | 2010-07-03 21:08:18 +0530 | [diff] [blame] | 717 | if ((fd_writer = open64(file, O_RDWR)) == -1) { |
robbiew | e093b82 | 2003-01-10 18:24:49 +0000 | [diff] [blame] | 718 | #else /* LARGE_FILE */ |
Subrata Modak | 76a720a | 2010-07-03 21:08:18 +0530 | [diff] [blame] | 719 | if ((fd_writer = open(file, O_RDWR)) == -1) { |
robbiew | e093b82 | 2003-01-10 18:24:49 +0000 | [diff] [blame] | 720 | #endif /* LARGE_FILE */ |
| 721 | perror("open error"); |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 722 | anyfail(); |
robbiew | e093b82 | 2003-01-10 18:24:49 +0000 | [diff] [blame] | 723 | } |
robbiew | e093b82 | 2003-01-10 18:24:49 +0000 | [diff] [blame] | 724 | #ifdef LARGE_FILE |
Subrata Modak | 76a720a | 2010-07-03 21:08:18 +0530 | [diff] [blame] | 725 | if ((off = lseek64(fd_writer, 0, SEEK_END)) == -1) { |
robbiew | e093b82 | 2003-01-10 18:24:49 +0000 | [diff] [blame] | 726 | #else /* LARGE_FILE */ |
Subrata Modak | 76a720a | 2010-07-03 21:08:18 +0530 | [diff] [blame] | 727 | if ((off = lseek(fd_writer, 0, SEEK_END)) == -1) { |
robbiew | e093b82 | 2003-01-10 18:24:49 +0000 | [diff] [blame] | 728 | #endif /* LARGE_FILE */ |
| 729 | perror("lseek error"); |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 730 | anyfail(); |
robbiew | e093b82 | 2003-01-10 18:24:49 +0000 | [diff] [blame] | 731 | } |
| 732 | |
robbiew | e093b82 | 2003-01-10 18:24:49 +0000 | [diff] [blame] | 733 | for (;;) { |
| 734 | #ifdef LARGE_FILE |
Subrata Modak | 76a720a | 2010-07-03 21:08:18 +0530 | [diff] [blame] | 735 | if (fstat64(fd_writer, &statbuf) == -1) { |
robbiew | e093b82 | 2003-01-10 18:24:49 +0000 | [diff] [blame] | 736 | #else /* LARGE_FILE */ |
Subrata Modak | 76a720a | 2010-07-03 21:08:18 +0530 | [diff] [blame] | 737 | if (fstat(fd_writer, &statbuf) == -1) { |
robbiew | e093b82 | 2003-01-10 18:24:49 +0000 | [diff] [blame] | 738 | #endif /* LARGE_FILE */ |
| 739 | perror("fstat error"); |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 740 | anyfail(); |
robbiew | e093b82 | 2003-01-10 18:24:49 +0000 | [diff] [blame] | 741 | } |
| 742 | #ifdef LARGE_FILE |
| 743 | if (debug) |
subrata_modak | 4bb656a | 2009-02-26 12:02:09 +0000 | [diff] [blame] | 744 | (void)printf("writer %d bytes at off %Ld, size %Ld\n", |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 745 | growsize, off, statbuf.st_size); |
robbiew | e093b82 | 2003-01-10 18:24:49 +0000 | [diff] [blame] | 746 | #else /* LARGE_FILE */ |
| 747 | if (debug) |
subrata_modak | 4bb656a | 2009-02-26 12:02:09 +0000 | [diff] [blame] | 748 | (void)printf("writer %d bytes at off %ld, size %ld\n", |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 749 | growsize, off, statbuf.st_size); |
robbiew | e093b82 | 2003-01-10 18:24:49 +0000 | [diff] [blame] | 750 | #endif /* LARGE_FILE */ |
| 751 | |
| 752 | /* |
| 753 | * Write some number of bytes, then sleep some |
| 754 | * number of seconds... |
| 755 | * Need to keep track of our offset so write the |
| 756 | * right bytes. |
| 757 | */ |
| 758 | |
| 759 | p = buf + (off % pagesize); |
| 760 | |
Subrata Modak | 76a720a | 2010-07-03 21:08:18 +0530 | [diff] [blame] | 761 | if ((cnt = write(fd_writer, p, growsize)) != growsize) { |
robbiew | e093b82 | 2003-01-10 18:24:49 +0000 | [diff] [blame] | 762 | if (cnt == -1) |
| 763 | perror("write error"); |
| 764 | else |
| 765 | (void)fprintf(stderr, "wrote %d of %d bytes\n", |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 766 | cnt, growsize); |
| 767 | anyfail(); |
robbiew | e093b82 | 2003-01-10 18:24:49 +0000 | [diff] [blame] | 768 | } |
| 769 | |
| 770 | off += growsize; |
| 771 | |
| 772 | (void)sleep(sleeptime); |
| 773 | if (dosync) { |
Subrata Modak | 76a720a | 2010-07-03 21:08:18 +0530 | [diff] [blame] | 774 | if (fsync(fd_writer) == -1) { |
robbiew | e093b82 | 2003-01-10 18:24:49 +0000 | [diff] [blame] | 775 | perror("fsync error"); |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 776 | anyfail(); |
robbiew | e093b82 | 2003-01-10 18:24:49 +0000 | [diff] [blame] | 777 | } |
| 778 | } |
| 779 | } |
Subrata Modak | 76a720a | 2010-07-03 21:08:18 +0530 | [diff] [blame] | 780 | close(fd_writer); |
robbiew | e093b82 | 2003-01-10 18:24:49 +0000 | [diff] [blame] | 781 | } |
| 782 | |
robbiew | e093b82 | 2003-01-10 18:24:49 +0000 | [diff] [blame] | 783 | /* |
| 784 | * Make sure file has all the correct data. |
| 785 | |
| 786 | */ |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 787 | int fileokay(char *file, uchar_t * expbuf) |
robbiew | e093b82 | 2003-01-10 18:24:49 +0000 | [diff] [blame] | 788 | { |
| 789 | #ifdef LARGE_FILE |
| 790 | struct stat64 statbuf; |
| 791 | #else /* LARGE_FILE */ |
| 792 | struct stat statbuf; |
| 793 | #endif /* LARGE_FILE */ |
| 794 | size_t mapsize; |
| 795 | uchar_t *readbuf; |
| 796 | unsigned mappages; |
| 797 | unsigned pagesize = sysconf(_SC_PAGE_SIZE); |
| 798 | int fd; |
| 799 | int cnt; |
| 800 | unsigned i, j; |
| 801 | |
| 802 | #ifdef LARGE_FILE |
| 803 | if ((fd = open64(file, O_RDONLY)) == -1) { |
| 804 | #else /* LARGE_FILE */ |
| 805 | if ((fd = open(file, O_RDONLY)) == -1) { |
| 806 | #endif /* LARGE_FILE */ |
| 807 | perror("open error"); |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 808 | anyfail(); |
robbiew | e093b82 | 2003-01-10 18:24:49 +0000 | [diff] [blame] | 809 | } |
| 810 | #ifdef LARGE_FILE |
| 811 | if (fstat64(fd, &statbuf) == -1) { |
| 812 | #else /* LARGE_FILE */ |
| 813 | if (fstat(fd, &statbuf) == -1) { |
| 814 | #endif /* LARGE_FILE */ |
| 815 | perror("stat error"); |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 816 | anyfail(); |
robbiew | e093b82 | 2003-01-10 18:24:49 +0000 | [diff] [blame] | 817 | } |
| 818 | #ifdef LARGE_FILE |
| 819 | if (lseek64(fd, sparseoffset, SEEK_SET) < 0) { |
| 820 | #else /* LARGE_FILE */ |
| 821 | if (lseek(fd, sparseoffset, SEEK_SET) < 0) { |
| 822 | #endif /* LARGE_FILE */ |
| 823 | perror("lseek"); |
| 824 | exit(1); |
| 825 | } |
| 826 | |
Cyril Hrubis | d218f34 | 2014-09-23 13:14:56 +0200 | [diff] [blame] | 827 | readbuf = malloc(pagesize); |
robbiew | e093b82 | 2003-01-10 18:24:49 +0000 | [diff] [blame] | 828 | |
| 829 | if (statbuf.st_size - sparseoffset > SIZE_MAX) { |
| 830 | fprintf(stderr, "size_t overflow when setting up map\n"); |
| 831 | exit(1); |
| 832 | } |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 833 | mapsize = (size_t) (statbuf.st_size - sparseoffset); |
robbiew | e093b82 | 2003-01-10 18:24:49 +0000 | [diff] [blame] | 834 | mappages = roundup(mapsize, pagesize) / pagesize; |
| 835 | |
| 836 | for (i = 0; i < mappages; i++) { |
| 837 | cnt = read(fd, (char *)readbuf, pagesize); |
| 838 | if (cnt == -1) { |
| 839 | perror("read error"); |
Subrata Modak | 76a720a | 2010-07-03 21:08:18 +0530 | [diff] [blame] | 840 | close(fd); |
subrata_modak | bdbaec5 | 2009-02-26 12:14:51 +0000 | [diff] [blame] | 841 | return 0; |
robbiew | e093b82 | 2003-01-10 18:24:49 +0000 | [diff] [blame] | 842 | } else if (cnt != pagesize) { |
| 843 | /* |
subrata_modak | 4bb656a | 2009-02-26 12:02:09 +0000 | [diff] [blame] | 844 | * Okay if at last page in file... |
robbiew | e093b82 | 2003-01-10 18:24:49 +0000 | [diff] [blame] | 845 | */ |
| 846 | if ((i * pagesize) + cnt != mapsize) { |
robbiew | d764fa2 | 2003-04-03 21:59:03 +0000 | [diff] [blame] | 847 | (void)fprintf(stderr, "read %d of %ld bytes\n", |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 848 | (i * pagesize) + cnt, |
| 849 | (long)mapsize); |
Subrata Modak | 76a720a | 2010-07-03 21:08:18 +0530 | [diff] [blame] | 850 | close(fd); |
subrata_modak | 43337a3 | 2009-02-26 11:43:51 +0000 | [diff] [blame] | 851 | return 0; |
robbiew | e093b82 | 2003-01-10 18:24:49 +0000 | [diff] [blame] | 852 | } |
| 853 | } |
| 854 | /* |
| 855 | * Compare read bytes of data. |
| 856 | * May have zeros from map extend... |
| 857 | */ |
| 858 | for (j = 0; j < cnt; j++) { |
| 859 | if (expbuf[j] != readbuf[j] && readbuf[j] != 0) { |
subrata_modak | 4bb656a | 2009-02-26 12:02:09 +0000 | [diff] [blame] | 860 | (void)fprintf(stderr, |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 861 | "read bad data: exp %c got %c", |
| 862 | expbuf[j], readbuf[j]); |
robbiew | e093b82 | 2003-01-10 18:24:49 +0000 | [diff] [blame] | 863 | #ifdef LARGE_FILE |
| 864 | (void)fprintf(stderr, ", pg %d off %d, " |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 865 | "(fsize %Ld)\n", i, j, |
| 866 | statbuf.st_size); |
robbiew | e093b82 | 2003-01-10 18:24:49 +0000 | [diff] [blame] | 867 | #else /* LARGE_FILE */ |
| 868 | (void)fprintf(stderr, ", pg %d off %d, " |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 869 | "(fsize %ld)\n", i, j, |
| 870 | statbuf.st_size); |
robbiew | e093b82 | 2003-01-10 18:24:49 +0000 | [diff] [blame] | 871 | #endif /* LARGE_FILE */ |
Subrata Modak | 76a720a | 2010-07-03 21:08:18 +0530 | [diff] [blame] | 872 | close(fd); |
subrata_modak | 43337a3 | 2009-02-26 11:43:51 +0000 | [diff] [blame] | 873 | return 0; |
robbiew | e093b82 | 2003-01-10 18:24:49 +0000 | [diff] [blame] | 874 | } |
| 875 | } |
| 876 | } |
Garrett Cooper | 2c28215 | 2010-12-16 00:55:50 -0800 | [diff] [blame] | 877 | |
Shuang Qiu | 29d35ae | 2013-05-28 11:42:08 +0800 | [diff] [blame] | 878 | close(fd); |
subrata_modak | 134e896 | 2009-02-26 11:46:54 +0000 | [diff] [blame] | 879 | return 1; |
robbiew | e093b82 | 2003-01-10 18:24:49 +0000 | [diff] [blame] | 880 | } |
| 881 | |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 882 | /*ARGSUSED*/ void finish(int sig) |
robbiew | e093b82 | 2003-01-10 18:24:49 +0000 | [diff] [blame] | 883 | { |
| 884 | finished++; |
| 885 | /* finish nicely and check the file contents */ |
| 886 | } |
| 887 | |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 888 | /*ARGSUSED*/ void clean_up_file(int sig) |
robbiew | e093b82 | 2003-01-10 18:24:49 +0000 | [diff] [blame] | 889 | { |
| 890 | if (!leavefile) |
| 891 | (void)unlink(filename); |
| 892 | exit(1); |
| 893 | } |
| 894 | |
Subrata Modak | 76a720a | 2010-07-03 21:08:18 +0530 | [diff] [blame] | 895 | void clean_mapper(int sig) |
| 896 | { |
| 897 | if (fd_mapper) |
| 898 | close(fd_mapper); |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 899 | munmap(maddr_mapper, mapsize_mapper); |
| 900 | exit(0); |
Subrata Modak | 76a720a | 2010-07-03 21:08:18 +0530 | [diff] [blame] | 901 | } |
| 902 | |
| 903 | void clean_writer(int sig) |
| 904 | { |
| 905 | if (fd_writer) |
| 906 | close(fd_writer); |
| 907 | exit(0); |
| 908 | } |
| 909 | |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 910 | unsigned int initrand(void) |
robbiew | e093b82 | 2003-01-10 18:24:49 +0000 | [diff] [blame] | 911 | { |
| 912 | unsigned int seed; |
| 913 | |
| 914 | /* |
| 915 | * Initialize random seed... Got this from a test written |
| 916 | * by scooter: |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 917 | * Use srand/rand to diffuse the information from the |
| 918 | * time and pid. If you start several processes, then |
| 919 | * the time and pid information don't provide much |
| 920 | * variation. |
robbiew | e093b82 | 2003-01-10 18:24:49 +0000 | [diff] [blame] | 921 | */ |
| 922 | srand((unsigned int)getpid()); |
| 923 | seed = rand(); |
Cyril Hrubis | 4e2bab8 | 2014-09-24 16:34:35 +0200 | [diff] [blame] | 924 | srand((unsigned int)time(NULL)); |
robbiew | e093b82 | 2003-01-10 18:24:49 +0000 | [diff] [blame] | 925 | seed = (seed ^ rand()) % 100000; |
| 926 | srand48((long int)seed); |
| 927 | return (seed); |
| 928 | } |
| 929 | |
robbiew | e093b82 | 2003-01-10 18:24:49 +0000 | [diff] [blame] | 930 | /***** LTP Port *****/ |
| 931 | void ok_exit() |
| 932 | { |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 933 | tst_resm(TPASS, "Test passed\n"); |
robbiew | e093b82 | 2003-01-10 18:24:49 +0000 | [diff] [blame] | 934 | tst_rmdir(); |
| 935 | tst_exit(); |
| 936 | } |
| 937 | |
robbiew | e093b82 | 2003-01-10 18:24:49 +0000 | [diff] [blame] | 938 | int anyfail() |
| 939 | { |
Cyril Hrubis | 9fa8ad0 | 2014-12-16 13:20:49 +0100 | [diff] [blame] | 940 | tst_brkm(TFAIL, tst_rmdir, "Test failed\n"); |
robbiew | e093b82 | 2003-01-10 18:24:49 +0000 | [diff] [blame] | 941 | } |
| 942 | |
Chris Dearman | ec6edca | 2012-10-17 19:54:01 -0700 | [diff] [blame] | 943 | /***** ** ** *****/ |