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-rw-r--r--source3/tdb/tdb.c112
-rw-r--r--source3/tdb/tdb.h2
-rw-r--r--source3/tdb/tdbtest.c10
-rw-r--r--source3/tdb/tdbtorture.c13
4 files changed, 123 insertions, 14 deletions
diff --git a/source3/tdb/tdb.c b/source3/tdb/tdb.c
index 2c2d78f719..eb5ce0aa95 100644
--- a/source3/tdb/tdb.c
+++ b/source3/tdb/tdb.c
@@ -56,6 +56,7 @@
#define TDB_DEAD(r) ((r)->magic == TDB_DEAD_MAGIC)
#define TDB_BAD_MAGIC(r) ((r)->magic != TDB_MAGIC && !TDB_DEAD(r))
#define TDB_HASH_TOP(hash) (FREELIST_TOP + (BUCKET(hash)+1)*sizeof(tdb_off))
+#define TDB_LOG(x) (tdb->log_fn?tdb->log_fn x : 0)
/* lock offsets */
#define GLOBAL_LOCK 0
@@ -299,6 +300,63 @@ static int update_tailer(TDB_CONTEXT *tdb, tdb_off offset,
}
#ifdef TDB_DEBUG
+static tdb_off tdb_dump_record(TDB_CONTEXT *tdb, tdb_off offset)
+{
+ struct list_struct rec;
+ tdb_off tailer_ofs, tailer;
+
+ if (tdb_read(tdb, offset, (char *)&rec, sizeof(rec), DOCONV()) == -1) {
+ printf("ERROR: failed to read record at %u\n", offset);
+ return 0;
+ }
+
+ printf(" rec: offset=%u next=%d rec_len=%d key_len=%d data_len=%d full_hash=0x%x magic=0x%x\n",
+ offset, rec.next, rec.rec_len, rec.key_len, rec.data_len, rec.full_hash, rec.magic);
+
+ tailer_ofs = offset + sizeof(rec) + rec.rec_len - sizeof(tdb_off);
+ if (ofs_read(tdb, tailer_ofs, &tailer) == -1) {
+ printf("ERROR: failed to read tailer at %u\n", tailer_ofs);
+ return rec.next;
+ }
+
+ if (tailer != rec.rec_len + sizeof(rec)) {
+ printf("ERROR: tailer does not match record! tailer=%u totalsize=%u\n", tailer, rec.rec_len + sizeof(rec));
+ }
+ return rec.next;
+}
+
+static void tdb_dump_chain(TDB_CONTEXT *tdb, int i)
+{
+ tdb_off rec_ptr, top;
+
+ top = TDB_HASH_TOP(i);
+
+ tdb_lock(tdb, i, F_WRLCK);
+
+ if (ofs_read(tdb, top, &rec_ptr) == -1) {
+ tdb_unlock(tdb, i, F_WRLCK);
+ return;
+ }
+
+ if (rec_ptr) printf("hash=%d\n", i);
+
+ while (rec_ptr) {
+ rec_ptr = tdb_dump_record(tdb, rec_ptr);
+ }
+ tdb_unlock(tdb, i, F_WRLCK);
+}
+
+void tdb_dump_all(TDB_CONTEXT *tdb)
+{
+ tdb_off off;
+ int i;
+ for (i=0;i<tdb->header.hash_size;i++) {
+ tdb_dump_chain(tdb, i);
+ }
+ printf("freelist:\n");
+ tdb_dump_chain(tdb, -1);
+}
+
void tdb_printfreelist(TDB_CONTEXT *tdb)
{
long total_free = 0;
@@ -365,45 +423,66 @@ static int tdb_free(TDB_CONTEXT *tdb, tdb_off offset, struct list_struct *rec)
/* Allocation and tailer lock */
if (tdb_lock(tdb, -1, F_WRLCK) != 0) return -1;
+ /* set an initial tailer, so if we fail we don't leave a bogus record */
+ update_tailer(tdb, offset, rec);
+
/* Look right first (I'm an Australian, dammit) */
right = offset + sizeof(*rec) + rec->rec_len;
if (tdb_oob(tdb, right + sizeof(*rec)) == 0) {
struct list_struct r;
- if (tdb_read(tdb, right, &r, sizeof(r), DOCONV()) == -1)
- goto fail;
+ if (tdb_read(tdb, right, &r, sizeof(r), DOCONV()) == -1) {
+ TDB_LOG((tdb, 0, "tdb_free: right read failed at %u\n", right));
+ goto left;
+ }
/* If it's free, expand to include it. */
if (r.magic == TDB_FREE_MAGIC) {
- if (remove_from_freelist(tdb, right, r.next) == -1)
- goto fail;
+ if (remove_from_freelist(tdb, right, r.next) == -1) {
+ TDB_LOG((tdb, 0, "tdb_free: right free failed at %u\n", right));
+ goto left;
+ }
rec->rec_len += sizeof(r) + r.rec_len;
}
}
+left:
/* Look left */
- left = offset - 4;
+ left = offset - sizeof(tdb_off);
if (left > TDB_HASH_TOP(tdb->header.hash_size-1)) {
struct list_struct l;
tdb_off leftsize;
/* Read in tailer and jump back to header */
- if (ofs_read(tdb, left, &leftsize) == -1) goto fail;
+ if (ofs_read(tdb, left, &leftsize) == -1) {
+ TDB_LOG((tdb, 0, "tdb_free: left offset read failed at %u\n", left));
+ goto update;
+ }
left = offset - leftsize;
/* Now read in record */
- if (tdb_read(tdb, left, &l, sizeof(l), DOCONV()) == -1)
- goto fail;
+ if (tdb_read(tdb, left, &l, sizeof(l), DOCONV()) == -1) {
+ TDB_LOG((tdb, 0, "tdb_free: left read failed at %u (%u)\n", left, leftsize));
+ goto update;
+ }
/* If it's free, expand to include it. */
if (l.magic == TDB_FREE_MAGIC) {
- if (remove_from_freelist(tdb, left, l.next) == -1)
- goto fail;
- offset = left;
- rec->rec_len += leftsize;
+ if (remove_from_freelist(tdb, left, l.next) == -1) {
+ TDB_LOG((tdb, 0, "tdb_free: left free failed at %u\n", left));
+ goto update;
+ } else {
+ offset = left;
+ rec->rec_len += leftsize;
+ }
}
}
- if (update_tailer(tdb, offset, rec) == -1) goto fail;
+
+update:
+ if (update_tailer(tdb, offset, rec) == -1) {
+ TDB_LOG((tdb, 0, "tdb_free: update_tailer failed at %u\n", offset));
+ goto fail;
+ }
/* Now, prepend to free list */
rec->magic = TDB_FREE_MAGIC;
@@ -1313,3 +1392,10 @@ void tdb_chainunlock(TDB_CONTEXT *tdb, TDB_DATA key)
{
tdb_unlock(tdb, BUCKET(tdb_hash(&key)), F_WRLCK);
}
+
+
+/* register a loging function */
+void tdb_logging_function(TDB_CONTEXT *tdb, void (*fn)(TDB_CONTEXT *, int , const char *, ...))
+{
+ tdb->log_fn = fn;
+}
diff --git a/source3/tdb/tdb.h b/source3/tdb/tdb.h
index f09c6453b5..cc37825e78 100644
--- a/source3/tdb/tdb.h
+++ b/source3/tdb/tdb.h
@@ -94,12 +94,14 @@ typedef struct tdb_context {
struct tdb_context *next; /* all tdbs to avoid multiple opens */
dev_t device; /* uniquely identifies this tdb */
ino_t inode; /* uniquely identifies this tdb */
+ void (*log_fn)(struct tdb_context *tdb, int level, const char *, ...); /* logging function */
} TDB_CONTEXT;
typedef int (*tdb_traverse_func)(TDB_CONTEXT *, TDB_DATA, TDB_DATA, void *);
TDB_CONTEXT *tdb_open(char *name, int hash_size, int tdb_flags,
int open_flags, mode_t mode);
+void tdb_logging_function(TDB_CONTEXT *tdb, void (*fn)(TDB_CONTEXT *, int , const char *, ...));
enum TDB_ERROR tdb_error(TDB_CONTEXT *tdb);
const char *tdb_errorstr(TDB_CONTEXT *tdb);
TDB_DATA tdb_fetch(TDB_CONTEXT *tdb, TDB_DATA key);
diff --git a/source3/tdb/tdbtest.c b/source3/tdb/tdbtest.c
index 9e636eef83..2cc7e88729 100644
--- a/source3/tdb/tdbtest.c
+++ b/source3/tdb/tdbtest.c
@@ -4,6 +4,7 @@
#include <unistd.h>
#include <string.h>
#include <fcntl.h>
+#include <stdarg.h>
#include <sys/mman.h>
#include <sys/stat.h>
#include <sys/time.h>
@@ -40,6 +41,14 @@ static void fatal(char *why)
exit(1);
}
+static void tdb_log(TDB_CONTEXT *tdb, int level, const char *format, ...)
+{
+ va_list ap;
+
+ va_start(ap, format);
+ vfprintf(stdout, format, ap);
+ va_end(ap);
+}
static void compare_db(void)
{
@@ -230,6 +239,7 @@ int main(int argc, char *argv[])
fatal("db open failed");
}
+ tdb_logging_function(db, tdb_log);
#if 1
srand(seed);
diff --git a/source3/tdb/tdbtorture.c b/source3/tdb/tdbtorture.c
index 90dcc38aba..4020fe69cb 100644
--- a/source3/tdb/tdbtorture.c
+++ b/source3/tdb/tdbtorture.c
@@ -4,6 +4,7 @@
#include <unistd.h>
#include <string.h>
#include <fcntl.h>
+#include <stdarg.h>
#include <sys/mman.h>
#include <sys/stat.h>
#include <sys/time.h>
@@ -22,6 +23,15 @@
static TDB_CONTEXT *db;
+static void tdb_log(TDB_CONTEXT *tdb, int level, const char *format, ...)
+{
+ va_list ap;
+
+ va_start(ap, format);
+ vfprintf(stdout, format, ap);
+ va_end(ap);
+}
+
static void fatal(char *why)
{
perror(why);
@@ -86,7 +96,7 @@ static int traverse_fn(TDB_CONTEXT *db, TDB_DATA key, TDB_DATA dbuf,
#endif
#ifndef NLOOPS
-#define NLOOPS 50000
+#define NLOOPS 5000000
#endif
int main(int argc, char *argv[])
@@ -103,6 +113,7 @@ int main(int argc, char *argv[])
if (!db) {
fatal("db open failed");
}
+ tdb_logging_function(db, tdb_log);
srand(seed + getpid());
for (i=0;i<loops;i++) addrec_db();
generated by cgit (git 2.34.1) at 2024-11-17 13:10:34 +0000