diff options
Diffstat (limited to 'db2/progs/db_dump/db_dump.c')
| -rw-r--r-- | db2/progs/db_dump/db_dump.c | 82 |
1 files changed, 53 insertions, 29 deletions
diff --git a/db2/progs/db_dump/db_dump.c b/db2/progs/db_dump/db_dump.c index f532bc2..0f34ddc 100644 --- a/db2/progs/db_dump/db_dump.c +++ b/db2/progs/db_dump/db_dump.c @@ -11,7 +11,7 @@ static const char copyright[] = "@(#) Copyright (c) 1996, 1997, 1998\n\ Sleepycat Software Inc. All rights reserved.\n"; -static const char sccsid[] = "@(#)db_dump.c 10.19 (Sleepycat) 5/23/98"; +static const char sccsid[] = "@(#)db_dump.c 10.24 (Sleepycat) 11/22/98"; #endif #ifndef NO_SYSTEM_INCLUDES @@ -25,14 +25,14 @@ static const char sccsid[] = "@(#)db_dump.c 10.19 (Sleepycat) 5/23/98"; #include <unistd.h> #endif +#undef stat + #include "db_int.h" #include "db_page.h" #include "btree.h" #include "hash.h" #include "clib_ext.h" -#undef stat - void configure __P((char *)); DB_ENV *db_init __P((char *)); int main __P((int, char *[])); @@ -58,7 +58,7 @@ main(argc, argv) home = NULL; checkprint = dflag = 0; - while ((ch = getopt(argc, argv, "df:h:p")) != EOF) + while ((ch = getopt(argc, argv, "df:h:Np")) != EOF) switch (ch) { case 'd': dflag = 1; @@ -70,6 +70,9 @@ main(argc, argv) case 'h': home = optarg; break; + case 'N': + (void)db_value_set(0, DB_MUTEXLOCKS); + break; case 'p': checkprint = 1; break; @@ -83,16 +86,11 @@ main(argc, argv) if (argc != 1) usage(); - if (dflag) { - if (home != NULL) - errx(1, - "the -d and -h options may not both be specified"); - if (checkprint) - errx(1, - "the -d and -p options may not both be specified"); - } + if (dflag && checkprint) + errx(1, "the -d and -p options may not both be specified"); + /* Initialize the environment. */ - dbenv = dflag ? NULL : db_init(home); + dbenv = db_init(home); /* Open the DB file. */ if ((errno = @@ -108,7 +106,7 @@ main(argc, argv) } /* Get a cursor and step through the database. */ - if ((errno = dbp->cursor(dbp, NULL, &dbcp)) != 0) { + if ((errno = dbp->cursor(dbp, NULL, &dbcp, 0)) != 0) { (void)dbp->close(dbp, 0); err(1, "cursor"); } @@ -145,16 +143,35 @@ db_init(home) { DB_ENV *dbenv; - if ((dbenv = (DB_ENV *)calloc(sizeof(DB_ENV), 1)) == NULL) { + if ((dbenv = (DB_ENV *)calloc(1, sizeof(DB_ENV))) == NULL) { errno = ENOMEM; err(1, NULL); } + + /* + * Try and use the shared mpool region so that we get pages that + * haven't been flushed to disk (mostly useful for debugging). + * If that fails, try again, without the DB_INIT_MPOOL flag. + * + * If it works, set the error output options so that future errors + * are correctly reported. + */ + if ((errno = db_appinit(home, + NULL, dbenv, DB_USE_ENVIRON | DB_INIT_MPOOL)) == 0) { + dbenv->db_errfile = stderr; + dbenv->db_errpfx = progname; + return (dbenv); + } + + /* Set the error output options -- this time we want a message. */ + memset(dbenv, 0, sizeof(*dbenv)); dbenv->db_errfile = stderr; dbenv->db_errpfx = progname; - if ((errno = - db_appinit(home, NULL, dbenv, DB_CREATE | DB_USE_ENVIRON)) != 0) + /* Try again, and it's fatal if we fail. */ + if ((errno = db_appinit(home, NULL, dbenv, DB_USE_ENVIRON)) != 0) err(1, "db_appinit"); + return (dbenv); } @@ -167,10 +184,10 @@ pheader(dbp, pflag) DB *dbp; int pflag; { + DBC *dbc; DB_BTREE_STAT *btsp; - HTAB *hashp; - HASHHDR *hdr; - db_pgno_t pgno; + HASH_CURSOR *hcp; + int ret; printf("format=%s\n", pflag ? "print" : "bytevalue"); switch (dbp->type) { @@ -187,18 +204,25 @@ pheader(dbp, pflag) break; case DB_HASH: printf("type=hash\n"); - hashp = dbp->internal; - pgno = PGNO_METADATA; - if (memp_fget(dbp->mpf, &pgno, 0, &hdr) == 0) { - if (hdr->ffactor != 0) - printf("h_ffactor=%lu\n", (u_long)hdr->ffactor); - if (hdr->nelem != 0) - printf("h_nelem=%lu\n", (u_long)hdr->nelem); - (void)memp_fput(dbp->mpf, hdr, 0); + if ((ret = dbp->cursor(dbp, NULL, &dbc, 0)) != 0) + break; + hcp = (HASH_CURSOR *)dbc->internal; + GET_META(dbp, hcp, ret); + if (ret == 0) { + if (hcp->hdr->ffactor != 0) + printf("h_ffactor=%lu\n", + (u_long)hcp->hdr->ffactor); + if (hcp->hdr->nelem != 0) + printf("h_nelem=%lu\n", + (u_long)hcp->hdr->nelem); + RELEASE_META(dbp, hcp); } + (void)dbc->c_close(dbc); break; case DB_RECNO: printf("type=recno\n"); + if ((errno = dbp->stat(dbp, &btsp, NULL, 0)) != 0) + err(1, "dbp->stat"); if (F_ISSET(dbp, DB_RE_RENUMBER)) printf("renumber=1\n"); if (F_ISSET(dbp, DB_RE_FIXEDLEN)) @@ -231,6 +255,6 @@ void usage() { (void)fprintf(stderr, - "usage: db_dump [-dp] [-f file] [-h home] db_file\n"); + "usage: db_dump [-dNp] [-f file] [-h home] db_file\n"); exit(1); } |