/* mdb_stat.c - memory-mapped database status tool */
/*
- * Copyright 2011 Howard Chu, Symas Corp.
+ * Copyright 2011-2018 Howard Chu, Symas Corp.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
#include <unistd.h>
#include "lmdb.h"
+#ifdef _WIN32
+#define Z "I"
+#else
+#define Z "z"
+#endif
+
static void prstat(MDB_stat *ms)
{
#if 0
printf(" Page size: %u\n", ms->ms_psize);
#endif
printf(" Tree depth: %u\n", ms->ms_depth);
- printf(" Branch pages: %zu\n", ms->ms_branch_pages);
- printf(" Leaf pages: %zu\n", ms->ms_leaf_pages);
- printf(" Overflow pages: %zu\n", ms->ms_overflow_pages);
- printf(" Entries: %zu\n", ms->ms_entries);
+ printf(" Branch pages: %"Z"u\n", ms->ms_branch_pages);
+ printf(" Leaf pages: %"Z"u\n", ms->ms_leaf_pages);
+ printf(" Overflow pages: %"Z"u\n", ms->ms_overflow_pages);
+ printf(" Entries: %"Z"u\n", ms->ms_entries);
}
static void usage(char *prog)
{
- fprintf(stderr, "usage: %s dbpath [-e] [-f] [-n] [-a|-s subdb]\n", prog);
+ fprintf(stderr, "usage: %s [-V] [-n] [-e] [-r[r]] [-f[f[f]]] [-a|-s subdb] dbpath\n", prog);
exit(EXIT_FAILURE);
}
char *prog = argv[0];
char *envname;
char *subname = NULL;
- int alldbs = 0, envinfo = 0, envflags = 0, freinfo = 0;
+ int alldbs = 0, envinfo = 0, envflags = 0, freinfo = 0, rdrinfo = 0;
if (argc < 2) {
usage(prog);
* -s: print stat of only the named subDB
* -e: print env info
* -f: print freelist info
+ * -r: print reader info
* -n: use NOSUBDIR flag on env_open
+ * -V: print version and exit
* (default) print stat of only the main DB
*/
- while ((i = getopt(argc, argv, "aefns:")) != EOF) {
+ while ((i = getopt(argc, argv, "Vaefnrs:")) != EOF) {
switch(i) {
+ case 'V':
+ printf("%s\n", MDB_VERSION_STRING);
+ exit(0);
+ break;
case 'a':
if (subname)
usage(prog);
case 'n':
envflags |= MDB_NOSUBDIR;
break;
+ case 'r':
+ rdrinfo++;
+ break;
case 's':
if (alldbs)
usage(prog);
envname = argv[optind];
rc = mdb_env_create(&env);
+ if (rc) {
+ fprintf(stderr, "mdb_env_create failed, error %d %s\n", rc, mdb_strerror(rc));
+ return EXIT_FAILURE;
+ }
if (alldbs || subname) {
mdb_env_set_maxdbs(env, 4);
rc = mdb_env_open(env, envname, envflags | MDB_RDONLY, 0664);
if (rc) {
- printf("mdb_env_open failed, error %d %s\n", rc, mdb_strerror(rc));
- goto env_close;
- }
- rc = mdb_txn_begin(env, NULL, MDB_RDONLY, &txn);
- if (rc) {
- printf("mdb_txn_begin failed, error %d %s\n", rc, mdb_strerror(rc));
+ fprintf(stderr, "mdb_env_open failed, error %d %s\n", rc, mdb_strerror(rc));
goto env_close;
}
if (envinfo) {
- rc = mdb_env_stat(env, &mst);
- rc = mdb_env_info(env, &mei);
+ (void)mdb_env_stat(env, &mst);
+ (void)mdb_env_info(env, &mei);
printf("Environment Info\n");
printf(" Map address: %p\n", mei.me_mapaddr);
- printf(" Map size: %zu\n", mei.me_mapsize);
+ printf(" Map size: %"Z"u\n", mei.me_mapsize);
printf(" Page size: %u\n", mst.ms_psize);
- printf(" Max pages: %zu\n", mei.me_mapsize / mst.ms_psize);
- printf(" Number of pages used: %zu\n", mei.me_last_pgno+1);
- printf(" Last transaction ID: %zu\n", mei.me_last_txnid);
+ printf(" Max pages: %"Z"u\n", mei.me_mapsize / mst.ms_psize);
+ printf(" Number of pages used: %"Z"u\n", mei.me_last_pgno+1);
+ printf(" Last transaction ID: %"Z"u\n", mei.me_last_txnid);
printf(" Max readers: %u\n", mei.me_maxreaders);
printf(" Number of readers used: %u\n", mei.me_numreaders);
}
+ if (rdrinfo) {
+ printf("Reader Table Status\n");
+ rc = mdb_reader_list(env, (MDB_msg_func *)fputs, stdout);
+ if (rdrinfo > 1) {
+ int dead;
+ mdb_reader_check(env, &dead);
+ printf(" %d stale readers cleared.\n", dead);
+ rc = mdb_reader_list(env, (MDB_msg_func *)fputs, stdout);
+ }
+ if (!(subname || alldbs || freinfo))
+ goto env_close;
+ }
+
+ rc = mdb_txn_begin(env, NULL, MDB_RDONLY, &txn);
+ if (rc) {
+ fprintf(stderr, "mdb_txn_begin failed, error %d %s\n", rc, mdb_strerror(rc));
+ goto env_close;
+ }
+
if (freinfo) {
MDB_cursor *cursor;
- MDB_val data;
+ MDB_val key, data;
size_t pages = 0, *iptr;
printf("Freelist Status\n");
dbi = 0;
rc = mdb_cursor_open(txn, dbi, &cursor);
if (rc) {
- printf("mdb_cursor_open failed, error %d %s\n", rc, mdb_strerror(rc));
+ fprintf(stderr, "mdb_cursor_open failed, error %d %s\n", rc, mdb_strerror(rc));
goto txn_abort;
}
rc = mdb_stat(txn, dbi, &mst);
if (rc) {
- printf("mdb_stat failed, error %d %s\n", rc, mdb_strerror(rc));
+ fprintf(stderr, "mdb_stat failed, error %d %s\n", rc, mdb_strerror(rc));
goto txn_abort;
}
- while ((rc = mdb_cursor_get(cursor, NULL, &data, MDB_NEXT)) == 0) {
+ prstat(&mst);
+ while ((rc = mdb_cursor_get(cursor, &key, &data, MDB_NEXT)) == 0) {
iptr = data.mv_data;
pages += *iptr;
+ if (freinfo > 1) {
+ char *bad = "";
+ size_t pg, prev;
+ ssize_t i, j, span = 0;
+ j = *iptr++;
+ for (i = j, prev = 1; --i >= 0; ) {
+ pg = iptr[i];
+ if (pg <= prev)
+ bad = " [bad sequence]";
+ prev = pg;
+ pg += span;
+ for (; i >= span && iptr[i-span] == pg; span++, pg++) ;
+ }
+ printf(" Transaction %"Z"u, %"Z"d pages, maxspan %"Z"d%s\n",
+ *(size_t *)key.mv_data, j, span, bad);
+ if (freinfo > 2) {
+ for (--j; j >= 0; ) {
+ pg = iptr[j];
+ for (span=1; --j >= 0 && iptr[j] == pg+span; span++) ;
+ printf(span>1 ? " %9"Z"u[%"Z"d]\n" : " %9"Z"u\n",
+ pg, span);
+ }
+ }
+ }
}
mdb_cursor_close(cursor);
- prstat(&mst);
- printf(" Free pages: %zu\n", pages);
+ printf(" Free pages: %"Z"u\n", pages);
}
rc = mdb_open(txn, subname, 0, &dbi);
if (rc) {
- printf("mdb_open failed, error %d %s\n", rc, mdb_strerror(rc));
+ fprintf(stderr, "mdb_open failed, error %d %s\n", rc, mdb_strerror(rc));
goto txn_abort;
}
-
+
rc = mdb_stat(txn, dbi, &mst);
if (rc) {
- printf("mdb_stat failed, error %d %s\n", rc, mdb_strerror(rc));
+ fprintf(stderr, "mdb_stat failed, error %d %s\n", rc, mdb_strerror(rc));
goto txn_abort;
}
printf("Status of %s\n", subname ? subname : "Main DB");
rc = mdb_cursor_open(txn, dbi, &cursor);
if (rc) {
- printf("mdb_cursor_open failed, error %d %s\n", rc, mdb_strerror(rc));
+ fprintf(stderr, "mdb_cursor_open failed, error %d %s\n", rc, mdb_strerror(rc));
goto txn_abort;
}
- while ((rc = mdb_cursor_get(cursor, &key, NULL, MDB_NEXT)) == 0) {
- char *str = malloc(key.mv_size+1);
+ while ((rc = mdb_cursor_get(cursor, &key, NULL, MDB_NEXT_NODUP)) == 0) {
+ char *str;
MDB_dbi db2;
+ if (memchr(key.mv_data, '\0', key.mv_size))
+ continue;
+ str = malloc(key.mv_size+1);
memcpy(str, key.mv_data, key.mv_size);
str[key.mv_size] = '\0';
rc = mdb_open(txn, str, 0, &db2);
if (rc) continue;
rc = mdb_stat(txn, db2, &mst);
if (rc) {
- printf("mdb_stat failed, error %d %s\n", rc, mdb_strerror(rc));
+ fprintf(stderr, "mdb_stat failed, error %d %s\n", rc, mdb_strerror(rc));
goto txn_abort;
}
prstat(&mst);
mdb_cursor_close(cursor);
}
+ if (rc == MDB_NOTFOUND)
+ rc = MDB_SUCCESS;
+
mdb_close(env, dbi);
txn_abort:
mdb_txn_abort(txn);
projects / openldap / blobdiff