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authorZhang Qiang <qiang.z.zhang@intel.com>2012-05-29 12:22:00 +0800
committerZhang Qiang <qiang.z.zhang@intel.com>2012-05-29 12:22:00 +0800
commit02f0634ac29e19c68279e5544cac963e7f1203b8 (patch)
treeb983472f94ef063cedf866d8ecfb55939171779d /db_dump185/db_dump185.c
parente776056ea09ba0b6d9505ced6913c9190a12d632 (diff)
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Sync source code from Tizen:BaseHEAD2.0_alphamaster2.0alpha1.0_post
Diffstat (limited to 'db_dump185/db_dump185.c')
-rw-r--r--db_dump185/db_dump185.c358
1 files changed, 358 insertions, 0 deletions
diff --git a/db_dump185/db_dump185.c b/db_dump185/db_dump185.c
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+/*-
+ * See the file LICENSE for redistribution information.
+ *
+ * Copyright (c) 1996-2009 Oracle. All rights reserved.
+ *
+ * $Id$
+ */
+
+#ifndef lint
+static const char copyright[] =
+ "Copyright (c) 1996-2009 Oracle. All rights reserved.\n";
+#endif
+
+#include <sys/types.h>
+
+#include <ctype.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#ifdef HAVE_DB_185_H
+#include <db_185.h>
+#else
+#include <db.h>
+#endif
+
+/* Hash Table Information */
+typedef struct hashhdr185 { /* Disk resident portion */
+ int magic; /* Magic NO for hash tables */
+ int version; /* Version ID */
+ u_int32_t lorder; /* Byte Order */
+ int bsize; /* Bucket/Page Size */
+ int bshift; /* Bucket shift */
+ int dsize; /* Directory Size */
+ int ssize; /* Segment Size */
+ int sshift; /* Segment shift */
+ int ovfl_point; /* Where overflow pages are being
+ * allocated */
+ int last_freed; /* Last overflow page freed */
+ int max_bucket; /* ID of Maximum bucket in use */
+ int high_mask; /* Mask to modulo into entire table */
+ int low_mask; /* Mask to modulo into lower half of
+ * table */
+ int ffactor; /* Fill factor */
+ int nkeys; /* Number of keys in hash table */
+} HASHHDR185;
+typedef struct htab185 { /* Memory resident data structure */
+ HASHHDR185 hdr; /* Header */
+} HTAB185;
+
+/* Hash Table Information */
+typedef struct hashhdr186 { /* Disk resident portion */
+ int32_t magic; /* Magic NO for hash tables */
+ int32_t version; /* Version ID */
+ int32_t lorder; /* Byte Order */
+ int32_t bsize; /* Bucket/Page Size */
+ int32_t bshift; /* Bucket shift */
+ int32_t ovfl_point; /* Where overflow pages are being allocated */
+ int32_t last_freed; /* Last overflow page freed */
+ int32_t max_bucket; /* ID of Maximum bucket in use */
+ int32_t high_mask; /* Mask to modulo into entire table */
+ int32_t low_mask; /* Mask to modulo into lower half of table */
+ int32_t ffactor; /* Fill factor */
+ int32_t nkeys; /* Number of keys in hash table */
+ int32_t hdrpages; /* Size of table header */
+ int32_t h_charkey; /* value of hash(CHARKEY) */
+#define NCACHED 32 /* number of bit maps and spare points */
+ int32_t spares[NCACHED];/* spare pages for overflow */
+ /* address of overflow page bitmaps */
+ u_int16_t bitmaps[NCACHED];
+} HASHHDR186;
+typedef struct htab186 { /* Memory resident data structure */
+ void *unused[2];
+ HASHHDR186 hdr; /* Header */
+} HTAB186;
+
+typedef struct _epgno {
+ u_int32_t pgno; /* the page number */
+ u_int16_t index; /* the index on the page */
+} EPGNO;
+
+typedef struct _epg {
+ void *page; /* the (pinned) page */
+ u_int16_t index; /* the index on the page */
+} EPG;
+
+typedef struct _cursor {
+ EPGNO pg; /* B: Saved tree reference. */
+ DBT key; /* B: Saved key, or key.data == NULL. */
+ u_int32_t rcursor; /* R: recno cursor (1-based) */
+
+#define CURS_ACQUIRE 0x01 /* B: Cursor needs to be reacquired. */
+#define CURS_AFTER 0x02 /* B: Unreturned cursor after key. */
+#define CURS_BEFORE 0x04 /* B: Unreturned cursor before key. */
+#define CURS_INIT 0x08 /* RB: Cursor initialized. */
+ u_int8_t flags;
+} CURSOR;
+
+/* The in-memory btree/recno data structure. */
+typedef struct _btree {
+ void *bt_mp; /* memory pool cookie */
+
+ void *bt_dbp; /* pointer to enclosing DB */
+
+ EPG bt_cur; /* current (pinned) page */
+ void *bt_pinned; /* page pinned across calls */
+
+ CURSOR bt_cursor; /* cursor */
+
+ EPGNO bt_stack[50]; /* stack of parent pages */
+ EPGNO *bt_sp; /* current stack pointer */
+
+ DBT bt_rkey; /* returned key */
+ DBT bt_rdata; /* returned data */
+
+ int bt_fd; /* tree file descriptor */
+
+ u_int32_t bt_free; /* next free page */
+ u_int32_t bt_psize; /* page size */
+ u_int16_t bt_ovflsize; /* cut-off for key/data overflow */
+ int bt_lorder; /* byte order */
+ /* sorted order */
+ enum { NOT, BACK, FORWARD } bt_order;
+ EPGNO bt_last; /* last insert */
+
+ /* B: key comparison function */
+ int (*bt_cmp) __P((DBT *, DBT *));
+ /* B: prefix comparison function */
+ size_t (*bt_pfx) __P((DBT *, DBT *));
+ /* R: recno input function */
+ int (*bt_irec) __P((struct _btree *, u_int32_t));
+
+ FILE *bt_rfp; /* R: record FILE pointer */
+ int bt_rfd; /* R: record file descriptor */
+
+ void *bt_cmap; /* R: current point in mapped space */
+ void *bt_smap; /* R: start of mapped space */
+ void *bt_emap; /* R: end of mapped space */
+ size_t bt_msize; /* R: size of mapped region. */
+
+ u_int32_t bt_nrecs; /* R: number of records */
+ size_t bt_reclen; /* R: fixed record length */
+ u_char bt_bval; /* R: delimiting byte/pad character */
+
+/*
+ * NB:
+ * B_NODUPS and R_RECNO are stored on disk, and may not be changed.
+ */
+#define B_INMEM 0x00001 /* in-memory tree */
+#define B_METADIRTY 0x00002 /* need to write metadata */
+#define B_MODIFIED 0x00004 /* tree modified */
+#define B_NEEDSWAP 0x00008 /* if byte order requires swapping */
+#define B_RDONLY 0x00010 /* read-only tree */
+
+#define B_NODUPS 0x00020 /* no duplicate keys permitted */
+#define R_RECNO 0x00080 /* record oriented tree */
+
+#define R_CLOSEFP 0x00040 /* opened a file pointer */
+#define R_EOF 0x00100 /* end of input file reached. */
+#define R_FIXLEN 0x00200 /* fixed length records */
+#define R_MEMMAPPED 0x00400 /* memory mapped file. */
+#define R_INMEM 0x00800 /* in-memory file */
+#define R_MODIFIED 0x01000 /* modified file */
+#define R_RDONLY 0x02000 /* read-only file */
+
+#define B_DB_LOCK 0x04000 /* DB_LOCK specified. */
+#define B_DB_SHMEM 0x08000 /* DB_SHMEM specified. */
+#define B_DB_TXN 0x10000 /* DB_TXN specified. */
+ u_int32_t flags;
+} BTREE;
+
+void db_btree __P((DB *, int));
+void db_hash __P((DB *, int));
+void dbt_dump __P((DBT *));
+void dbt_print __P((DBT *));
+int main __P((int, char *[]));
+int usage __P((void));
+
+int
+main(argc, argv)
+ int argc;
+ char *argv[];
+{
+ extern char *optarg;
+ extern int optind;
+ DB *dbp;
+ DBT key, data;
+ int ch, pflag, rval;
+
+ pflag = 0;
+ while ((ch = getopt(argc, argv, "f:p")) != EOF)
+ switch (ch) {
+ case 'f':
+ if (freopen(optarg, "w", stdout) == NULL) {
+ fprintf(stderr, "db_dump185: %s: %s\n",
+ optarg, strerror(errno));
+ return (EXIT_FAILURE);
+ }
+ break;
+ case 'p':
+ pflag = 1;
+ break;
+ case '?':
+ default:
+ return (usage());
+ }
+ argc -= optind;
+ argv += optind;
+
+ if (argc != 1)
+ return (usage());
+
+ if ((dbp = dbopen(argv[0], O_RDONLY, 0, DB_BTREE, NULL)) == NULL) {
+ if ((dbp =
+ dbopen(argv[0], O_RDONLY, 0, DB_HASH, NULL)) == NULL) {
+ fprintf(stderr,
+ "db_dump185: %s: %s\n", argv[0], strerror(errno));
+ return (EXIT_FAILURE);
+ }
+ db_hash(dbp, pflag);
+ } else
+ db_btree(dbp, pflag);
+
+ /*
+ * !!!
+ * DB 1.85 DBTs are a subset of DB 2.0 DBTs, so we just use the
+ * new dump/print routines.
+ */
+ if (pflag)
+ while (!(rval = dbp->seq(dbp, &key, &data, R_NEXT))) {
+ dbt_print(&key);
+ dbt_print(&data);
+ }
+ else
+ while (!(rval = dbp->seq(dbp, &key, &data, R_NEXT))) {
+ dbt_dump(&key);
+ dbt_dump(&data);
+ }
+
+ if (rval == -1) {
+ fprintf(stderr, "db_dump185: seq: %s\n", strerror(errno));
+ return (EXIT_FAILURE);
+ }
+ return (EXIT_SUCCESS);
+}
+
+/*
+ * db_hash --
+ * Dump out hash header information.
+ */
+void
+db_hash(dbp, pflag)
+ DB *dbp;
+ int pflag;
+{
+ HTAB185 *hash185p;
+ HTAB186 *hash186p;
+
+ printf("format=%s\n", pflag ? "print" : "bytevalue");
+ printf("type=hash\n");
+
+ /* DB 1.85 was version 2, DB 1.86 was version 3. */
+ hash185p = dbp->internal;
+ if (hash185p->hdr.version > 2) {
+ hash186p = dbp->internal;
+ printf("h_ffactor=%lu\n", (u_long)hash186p->hdr.ffactor);
+ if (hash186p->hdr.lorder != 0)
+ printf("db_lorder=%lu\n", (u_long)hash186p->hdr.lorder);
+ printf("db_pagesize=%lu\n", (u_long)hash186p->hdr.bsize);
+ } else {
+ printf("h_ffactor=%lu\n", (u_long)hash185p->hdr.ffactor);
+ if (hash185p->hdr.lorder != 0)
+ printf("db_lorder=%lu\n", (u_long)hash185p->hdr.lorder);
+ printf("db_pagesize=%lu\n", (u_long)hash185p->hdr.bsize);
+ }
+ printf("HEADER=END\n");
+}
+
+/*
+ * db_btree --
+ * Dump out btree header information.
+ */
+void
+db_btree(dbp, pflag)
+ DB *dbp;
+ int pflag;
+{
+ BTREE *btp;
+
+ btp = dbp->internal;
+
+ printf("format=%s\n", pflag ? "print" : "bytevalue");
+ printf("type=btree\n");
+#ifdef NOT_AVAILABLE_IN_185
+ printf("bt_minkey=%lu\n", (u_long)XXX);
+ printf("bt_maxkey=%lu\n", (u_long)XXX);
+#endif
+ if (btp->bt_lorder != 0)
+ printf("db_lorder=%lu\n", (u_long)btp->bt_lorder);
+ printf("db_pagesize=%lu\n", (u_long)btp->bt_psize);
+ if (!(btp->flags & B_NODUPS))
+ printf("duplicates=1\n");
+ printf("HEADER=END\n");
+}
+
+static char hex[] = "0123456789abcdef";
+
+/*
+ * dbt_dump --
+ * Write out a key or data item using byte values.
+ */
+void
+dbt_dump(dbtp)
+ DBT *dbtp;
+{
+ size_t len;
+ u_int8_t *p;
+
+ for (len = dbtp->size, p = dbtp->data; len--; ++p)
+ (void)printf("%c%c",
+ hex[(*p & 0xf0) >> 4], hex[*p & 0x0f]);
+ printf("\n");
+}
+
+/*
+ * dbt_print --
+ * Write out a key or data item using printable characters.
+ */
+void
+dbt_print(dbtp)
+ DBT *dbtp;
+{
+ size_t len;
+ u_int8_t *p;
+
+ for (len = dbtp->size, p = dbtp->data; len--; ++p)
+ if (isprint((int)*p)) {
+ if (*p == '\\')
+ (void)printf("\\");
+ (void)printf("%c", *p);
+ } else
+ (void)printf("\\%c%c",
+ hex[(*p & 0xf0) >> 4], hex[*p & 0x0f]);
+ printf("\n");
+}
+
+/*
+ * usage --
+ * Display the usage message.
+ */
+int
+usage()
+{
+ (void)fprintf(stderr, "usage: db_dump185 [-p] [-f file] db_file\n");
+ return (EXIT_FAILURE);
+}