summaryrefslogtreecommitdiff
path: root/db2/lock/lock.c
diff options
context:
space:
mode:
Diffstat (limited to 'db2/lock/lock.c')
-rw-r--r--db2/lock/lock.c48
1 files changed, 29 insertions, 19 deletions
diff --git a/db2/lock/lock.c b/db2/lock/lock.c
index 9b1cbc8a08..0846d3c29f 100644
--- a/db2/lock/lock.c
+++ b/db2/lock/lock.c
@@ -8,7 +8,7 @@
#include "config.h"
#ifndef lint
-static const char sccsid[] = "@(#)lock.c 10.41 (Sleepycat) 11/28/97";
+static const char sccsid[] = "@(#)lock.c 10.43 (Sleepycat) 1/8/98";
#endif /* not lint */
#ifndef NO_SYSTEM_INCLUDES
@@ -79,14 +79,15 @@ __lock_create(path, mode, dbenv)
u_int maxlocks;
u_int32_t i;
int fd, lock_modes, nelements, ret;
- u_int8_t *conflicts, *curaddr;
+ const u_int8_t *conflicts;
+ u_int8_t *curaddr;
maxlocks = dbenv == NULL || dbenv->lk_max == 0 ?
DB_LOCK_DEFAULT_N : dbenv->lk_max;
lock_modes = dbenv == NULL || dbenv->lk_modes == 0 ?
DB_LOCK_RW_N : dbenv->lk_modes;
conflicts = dbenv == NULL || dbenv->lk_conflicts == NULL ?
- (u_int8_t *)db_rw_conflicts : dbenv->lk_conflicts;
+ db_rw_conflicts : dbenv->lk_conflicts;
if ((ret =
__db_rcreate(dbenv, DB_APP_NONE, path, DB_DEFAULT_LOCK_FILE, mode,
@@ -666,8 +667,7 @@ __lock_get_internal(lt, locker, flags, obj, lock_mode, lockp)
newl->holder = locker;
newl->refcount = 1;
- if ((ret =
- __lock_getobj(lt, 0, (DBT *)obj, DB_LOCK_OBJTYPE, &sh_obj)) != 0)
+ if ((ret = __lock_getobj(lt, 0, obj, DB_LOCK_OBJTYPE, &sh_obj)) != 0)
return (ret);
lrp = lt->region; /* getobj might have grown */
@@ -955,10 +955,15 @@ __lock_grow_region(lt, which, howmuch)
}
#ifdef DEBUG
+/*
+ * __lock_dump_region --
+ *
+ * PUBLIC: void __lock_dump_region __P((DB_LOCKTAB *, u_int));
+ */
void
__lock_dump_region(lt, flags)
DB_LOCKTAB *lt;
- unsigned long flags;
+ u_int flags;
{
struct __db_lock *lp;
DB_LOCKOBJ *op;
@@ -1096,6 +1101,12 @@ __lock_dump_object(lt, op)
}
}
+/*
+ * __lock_is_locked --
+ *
+ * PUBLIC: int __lock_is_locked
+ * PUBLIC: __P((DB_LOCKTAB *, u_int32_t, DBT *, db_lockmode_t));
+ */
int
__lock_is_locked(lt, locker, dbt, mode)
DB_LOCKTAB *lt;
@@ -1135,7 +1146,7 @@ __lock_printlock(lt, lp, ispgno)
db_pgno_t pgno;
size_t obj;
u_int8_t *ptr;
- char *mode, *stat;
+ const char *mode, *status;
switch (lp->mode) {
case DB_LOCK_IREAD:
@@ -1162,32 +1173,32 @@ __lock_printlock(lt, lp, ispgno)
}
switch (lp->status) {
case DB_LSTAT_ABORTED:
- stat = "ABORT";
+ status = "ABORT";
break;
case DB_LSTAT_ERR:
- stat = "ERROR";
+ status = "ERROR";
break;
case DB_LSTAT_FREE:
- stat = "FREE";
+ status = "FREE";
break;
case DB_LSTAT_HELD:
- stat = "HELD";
+ status = "HELD";
break;
case DB_LSTAT_NOGRANT:
- stat = "NONE";
+ status = "NONE";
break;
case DB_LSTAT_WAITING:
- stat = "WAIT";
+ status = "WAIT";
break;
case DB_LSTAT_PENDING:
- stat = "PENDING";
+ status = "PENDING";
break;
default:
- stat = "UNKNOWN";
+ status = "UNKNOWN";
break;
}
printf("\t%lx\t%s\t%lu\t%s\t",
- (u_long)lp->holder, mode, (u_long)lp->refcount, stat);
+ (u_long)lp->holder, mode, (u_long)lp->refcount, status);
lockobj = (DB_LOCKOBJ *)((u_int8_t *)lp + lp->obj);
ptr = SH_DBT_PTR(&lockobj->lockobj);
@@ -1202,7 +1213,6 @@ __lock_printlock(lt, lp, ispgno)
printf("\n");
}
}
-
#endif
static int
@@ -1239,13 +1249,13 @@ __lock_count_objs(lrp)
/*
* PUBLIC: int __lock_getobj __P((DB_LOCKTAB *,
- * PUBLIC: u_int32_t, DBT *, u_int32_t type, DB_LOCKOBJ **));
+ * PUBLIC: u_int32_t, const DBT *, u_int32_t type, DB_LOCKOBJ **));
*/
int
__lock_getobj(lt, locker, dbt, type, objp)
DB_LOCKTAB *lt;
u_int32_t locker, type;
- DBT *dbt;
+ const DBT *dbt;
DB_LOCKOBJ **objp;
{
DB_LOCKREGION *lrp;