#include "system/wait.h"
#else
#define _XOPEN_SOURCE 500
+#define _FILE_OFFSET_BITS 64
#include <stdint.h>
#include <stdbool.h>
#include <stdlib.h>
#endif
#include "tdb.h"
+/* #define TDB_TRACE 1 */
+
#if HAVE_GETPAGESIZE
#define getpagesize() 0x2000
#endif
#define TDB_LOG(x) tdb->log.log_fn x
#ifdef TDB_TRACE
-void tdb_trace(const struct tdb_context *tdb, const char *fmt, ...);
-void tdb_trace_record(const struct tdb_context *tdb, TDB_DATA rec);
+void tdb_trace(struct tdb_context *tdb, const char *op);
+void tdb_trace_seqnum(struct tdb_context *tdb, uint32_t seqnum, const char *op);
+void tdb_trace_open(struct tdb_context *tdb, const char *op,
+ unsigned hash_size, unsigned tdb_flags, unsigned open_flags);
+void tdb_trace_ret(struct tdb_context *tdb, const char *op, int ret);
+void tdb_trace_retrec(struct tdb_context *tdb, const char *op, TDB_DATA ret);
+void tdb_trace_1rec(struct tdb_context *tdb, const char *op,
+ TDB_DATA rec);
+void tdb_trace_1rec_ret(struct tdb_context *tdb, const char *op,
+ TDB_DATA rec, int ret);
+void tdb_trace_1rec_retrec(struct tdb_context *tdb, const char *op,
+ TDB_DATA rec, TDB_DATA ret);
+void tdb_trace_2rec_flag_ret(struct tdb_context *tdb, const char *op,
+ TDB_DATA rec1, TDB_DATA rec2, unsigned flag,
+ int ret);
+void tdb_trace_2rec_retrec(struct tdb_context *tdb, const char *op,
+ TDB_DATA rec1, TDB_DATA rec2, TDB_DATA ret);
#else
-static inline void tdb_trace(const struct tdb_context *tdb, const char *fmt, ...)
-{
-}
-static inline void tdb_trace_record(const struct tdb_context *tdb, TDB_DATA rec)
-{
-}
+#define tdb_trace(tdb, op)
+#define tdb_trace_seqnum(tdb, seqnum, op)
+#define tdb_trace_open(tdb, op, hash_size, tdb_flags, open_flags)
+#define tdb_trace_ret(tdb, op, ret)
+#define tdb_trace_retrec(tdb, op, ret)
+#define tdb_trace_1rec(tdb, op, rec)
+#define tdb_trace_1rec_ret(tdb, op, rec, ret)
+#define tdb_trace_1rec_retrec(tdb, op, rec, ret)
+#define tdb_trace_2rec_flag_ret(tdb, op, rec1, rec2, flag, ret)
+#define tdb_trace_2rec_retrec(tdb, op, rec1, rec2, ret)
#endif /* !TDB_TRACE */
/* lock offsets */
int lock_rw;
};
+enum tdb_lock_flags {
+ /* WAIT == F_SETLKW, NOWAIT == F_SETLK */
+ TDB_LOCK_NOWAIT = 0,
+ TDB_LOCK_WAIT = 1,
+ /* If set, don't log an error on failure. */
+ TDB_LOCK_PROBE = 2,
+ /* If set, don't actually lock at all. */
+ TDB_LOCK_MARK_ONLY = 4,
+};
struct tdb_methods {
int (*tdb_read)(struct tdb_context *, tdb_off_t , void *, tdb_len_t , int );
void (*next_hash_chain)(struct tdb_context *, uint32_t *);
int (*tdb_oob)(struct tdb_context *, tdb_off_t , int );
int (*tdb_expand_file)(struct tdb_context *, tdb_off_t , tdb_off_t );
- int (*tdb_brlock)(struct tdb_context *, tdb_off_t , int, int, int, size_t);
+ int (*brlock)(struct tdb_context *, int, tdb_off_t, size_t, enum tdb_lock_flags);
+ int (*brunlock)(struct tdb_context *, int, tdb_off_t, size_t);
};
struct tdb_context {
struct tdb_transaction *transaction;
int page_size;
int max_dead_records;
- bool have_transaction_lock;
+ int transaction_lock_count;
+#ifdef TDB_TRACE
int tracefd;
+#endif
volatile sig_atomic_t *interrupt_sig_ptr;
};
int tdb_lock(struct tdb_context *tdb, int list, int ltype);
int tdb_lock_nonblock(struct tdb_context *tdb, int list, int ltype);
int tdb_unlock(struct tdb_context *tdb, int list, int ltype);
-int tdb_brlock(struct tdb_context *tdb, tdb_off_t offset, int rw_type, int lck_type, int probe, size_t len);
+int tdb_brlock(struct tdb_context *tdb,
+ int rw_type, tdb_off_t offset, size_t len,
+ enum tdb_lock_flags flags);
+int tdb_brunlock(struct tdb_context *tdb,
+ int rw_type, tdb_off_t offset, size_t len);
int tdb_transaction_lock(struct tdb_context *tdb, int ltype);
-int tdb_transaction_unlock(struct tdb_context *tdb);
+int tdb_transaction_unlock(struct tdb_context *tdb, int ltype);
int tdb_brlock_upgrade(struct tdb_context *tdb, tdb_off_t offset, size_t len);
int tdb_write_lock_record(struct tdb_context *tdb, tdb_off_t off);
int tdb_write_unlock_record(struct tdb_context *tdb, tdb_off_t off);
int tdb_ofs_write(struct tdb_context *tdb, tdb_off_t offset, tdb_off_t *d);
int tdb_lock_record(struct tdb_context *tdb, tdb_off_t off);
int tdb_unlock_record(struct tdb_context *tdb, tdb_off_t off);
+int _tdb_transaction_cancel(struct tdb_context *tdb, int ltype);
int tdb_rec_read(struct tdb_context *tdb, tdb_off_t offset, struct list_struct *rec);
int tdb_rec_write(struct tdb_context *tdb, tdb_off_t offset, struct list_struct *rec);
int tdb_do_delete(struct tdb_context *tdb, tdb_off_t rec_ptr, struct list_struct *rec);