diff options
Diffstat (limited to 'db2/progs/db_deadlock/db_deadlock.c')
| -rw-r--r-- | db2/progs/db_deadlock/db_deadlock.c | 245 |
1 files changed, 0 insertions, 245 deletions
diff --git a/db2/progs/db_deadlock/db_deadlock.c b/db2/progs/db_deadlock/db_deadlock.c deleted file mode 100644 index bc5039e95f..0000000000 --- a/db2/progs/db_deadlock/db_deadlock.c +++ /dev/null @@ -1,245 +0,0 @@ -/*- - * See the file LICENSE for redistribution information. - * - * Copyright (c) 1996, 1997, 1998 - * Sleepycat Software. All rights reserved. - */ - -#include "config.h" - -#ifndef lint -static const char copyright[] = -"@(#) Copyright (c) 1996, 1997, 1998\n\ - Sleepycat Software Inc. All rights reserved.\n"; -static const char sccsid[] = "@(#)db_deadlock.c 10.23 (Sleepycat) 10/4/98"; -#endif - -#ifndef NO_SYSTEM_INCLUDES -#include <sys/types.h> - -#include <errno.h> -#include <limits.h> -#include <signal.h> -#include <stdio.h> -#include <stdlib.h> -#include <time.h> -#include <unistd.h> -#endif - -#include "db_int.h" -#include "clib_ext.h" -#include "common_ext.h" - -#define BAD_KILLID 0xffffffff - -DB_ENV *db_init __P((char *, int)); -int logpid __P((char *, int)); -int main __P((int, char *[])); -void onint __P((int)); -void siginit __P((void)); -void usage __P((void)); - -int interrupted; -const char - *progname = "db_deadlock"; /* Program name. */ - -int -main(argc, argv) - int argc; - char *argv[]; -{ - extern char *optarg; - extern int optind; - DB_ENV *dbenv; - u_int32_t atype; - time_t now; - long usecs; - u_int32_t flags; - int ch, ret, verbose; - char *home, *logfile; - - atype = DB_LOCK_DEFAULT; - home = logfile = NULL; - usecs = 0; - flags = 0; - ret = verbose = 0; - while ((ch = getopt(argc, argv, "a:h:L:t:vw")) != EOF) - switch (ch) { - case 'a': - switch (optarg[0]) { - case 'o': - atype = DB_LOCK_OLDEST; - break; - case 'y': - atype = DB_LOCK_YOUNGEST; - break; - default: - usage(); - /* NOTREACHED */ - } - if (optarg[1] != '\0') - usage(); - break; - case 'h': - home = optarg; - break; - case 'L': - logfile = optarg; - break; - case 't': - get_long(optarg, 1, LONG_MAX, &usecs); - usecs *= 1000000; - break; - case 'v': - verbose = 1; - break; - case 'w': - LF_SET(DB_LOCK_CONFLICT); - break; - case '?': - default: - usage(); - } - argc -= optind; - argv += optind; - - if (argc != 0) - usage(); - - if (usecs == 0 && !LF_ISSET(DB_LOCK_CONFLICT)) { - warnx("at least one of -t and -w must be specified"); - usage(); - } - - /* - * We detect every 100ms (100000 us) when we're running in - * DB_LOCK_CONFLICT mode. - */ - if (usecs == 0) - usecs = 100000; - - /* Initialize the deadlock detector by opening the lock manager. */ - siginit(); - dbenv = db_init(home, verbose); - - if (logfile != NULL && logpid(logfile, 1)) { - (void)db_appexit(dbenv); - return (1); - } - - while (!interrupted) { - if (dbenv->db_verbose != 0) { - time(&now); - warnx("Running at %.24s", ctime(&now)); - } - - if ((errno = lock_detect(dbenv->lk_info, flags, atype)) != 0) { - ret = 1; - warnx(NULL); - break; - } - - /* Make a pass every "usecs" usecs. */ - (void)usleep(usecs); - } - - if (logfile != NULL && logpid(logfile, 0)) - ret = 1; - - if ((errno = db_appexit(dbenv)) != 0) { - ret = 1; - warn(NULL); - } - - if (interrupted) { - (void)signal(interrupted, SIG_DFL); - (void)raise(interrupted); - /* NOTREACHED */ - } - - return (ret); -} - -DB_ENV * -db_init(home, verbose) - char *home; - int verbose; -{ - DB_ENV *dbenv; - - if ((dbenv = (DB_ENV *)calloc(sizeof(DB_ENV), 1)) == NULL) { - errno = ENOMEM; - err(1, NULL); - } - dbenv->db_errfile = stderr; - dbenv->db_errpfx = progname; - dbenv->db_verbose = verbose; - - if ((errno = db_appinit(home, - NULL, dbenv, DB_INIT_LOCK | DB_USE_ENVIRON)) != 0) - err(1, "db_appinit"); - - return (dbenv); -} - -/* - * logpid -- - * Log that we're running. - */ -int -logpid(fname, is_open) - char *fname; - int is_open; -{ - FILE *fp; - time_t now; - - if (is_open) { - if ((fp = fopen(fname, "w")) == NULL) { - warn("%s", fname); - return (1); - } - (void)time(&now); - fprintf(fp, - "%.24s: %lu %s", progname, (u_long)getpid(), ctime(&now)); - fclose(fp); - } else - (void)remove(fname); - return (0); -} - -/* - * siginit -- - * Initialize the set of signals for which we want to clean up. - * Generally, we try not to leave the shared regions locked if - * we can. - */ -void -siginit() -{ -#ifdef SIGHUP - (void)signal(SIGHUP, onint); -#endif - (void)signal(SIGINT, onint); - (void)signal(SIGTERM, onint); -} - -/* - * onint -- - * Interrupt signal handler. - */ -void -onint(signo) - int signo; -{ - if ((interrupted = signo) == 0) - interrupted = SIGINT; -} - -void -usage() -{ - (void)fprintf(stderr, - "usage: db_deadlock [-vw] [-a m | o | y] [-h home] [-L file] [-t sec]\n"); - exit(1); -} |