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Add reset_fn to external_locking.

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This commit is contained in:
Alasdair Kergon 2004-05-18 21:57:24 +00:00
parent 63aead84ee
commit b61702ce8c
2 changed files with 11 additions and 0 deletions
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1
WHATS_NEW
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@ -1,5 +1,6 @@
Version 2.00.16 -
=============================
Add reset_fn to external_locking.
Ensure presence of virtual targets before attempting activating.
Attempt to fix resizing of snapshot origins.
Restructure lvresize, bringing it closer to lvcreate.

10
lib/locking/external_locking.c
View File

@ -19,6 +19,7 @@
#include "sharedlib.h"
static void *_locking_lib = NULL;
static void (*_reset_fn) (void) = NULL;
static void (*_end_fn) (void) = NULL;
static int (*_lock_fn) (struct cmd_context * cmd, const char *resource,
int flags) = NULL;
@ -45,6 +46,13 @@ static void _fin_external_locking(void)
_init_fn = NULL;
_end_fn = NULL;
_lock_fn = NULL;
_reset_fn = NULL;
}
static void _reset_external_locking(void)
{
if (_reset_fn)
_reset_fn();
}
int init_external_locking(struct locking_type *locking, struct config_tree *cft)
@ -58,6 +66,7 @@ int init_external_locking(struct locking_type *locking, struct config_tree *cft)
locking->lock_resource = _lock_resource;
locking->fin_locking = _fin_external_locking;
locking->reset_locking = _reset_external_locking;
locking->flags = 0;
libname = find_config_str(cft->root, "global/locking_library",
@ -71,6 +80,7 @@ int init_external_locking(struct locking_type *locking, struct config_tree *cft)
/* Get the functions we need */
if (!(_init_fn = dlsym(_locking_lib, "locking_init")) ||
!(_lock_fn = dlsym(_locking_lib, "lock_resource")) ||
!(_reset_fn = dlsym(_locking_lib, "reset_locking")) ||
!(_end_fn = dlsym(_locking_lib, "locking_end"))) {
log_error("Shared library %s does not contain locking "
"functions", libname);