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gre_locks.c
139 lines (110 loc) · 2.73 KB
/
gre_locks.c
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//
// gre_locks.c
// gre
//
// Created by Zhenlei Huang on 10/4/15.
//
//
#include <sys/systm.h>
#include <sys/lock.h>
void gre_locks_dispose(void);
static lck_grp_attr_t *gre_grp_attributes;
lck_grp_t *gre_lck_grp;
lck_grp_t *gre_ipf_lck_grp;
lck_grp_t *gre_sc_lck_grp;
lck_attr_t *gre_lck_attributes;
lck_attr_t *gre_ipf_lck_attributes;
lck_attr_t *gre_sc_lck_attributes;
int
gre_locks_init(void)
{
#ifdef DEBUG
printf("%s ...\n", __FUNCTION__);
#endif
gre_grp_attributes = lck_grp_attr_alloc_init();
if (!gre_grp_attributes) {
printf("%s: lck_grp_attr_alloc_init() failed\n", __FUNCTION__);
goto error;
}
/* global gre lock group */
gre_lck_grp = lck_grp_alloc_init("GRE lock group", gre_grp_attributes);
if (!gre_lck_grp) {
printf("%s: lck_grp_alloc_init() failed\n", __FUNCTION__);
goto error;
}
/* ipfilter gre hash lock group */
gre_ipf_lck_grp = lck_grp_alloc_init("GRE ipfilter lock group", gre_grp_attributes);
if (!gre_ipf_lck_grp) {
printf("%s: lck_grp_alloc_init() failed\n", __FUNCTION__);
goto error;
}
/* global gre softc lock group */
gre_sc_lck_grp = lck_grp_alloc_init("GRE softc lock group", gre_grp_attributes);
if (!gre_sc_lck_grp) {
printf("%s: lck_grp_alloc_init() failed\n", __FUNCTION__);
goto error;
}
gre_lck_attributes = lck_attr_alloc_init();
if (!gre_lck_attributes) {
printf("%s: lck_attr_alloc_init() failed\n", __FUNCTION__);
goto error;
}
gre_ipf_lck_attributes = lck_attr_alloc_init();
if (!gre_ipf_lck_attributes) {
printf("%s: lck_attr_alloc_init() failed\n", __FUNCTION__);
goto error;
}
gre_sc_lck_attributes = lck_attr_alloc_init();
if (!gre_sc_lck_attributes) {
printf("%s: lck_attr_alloc_init() failed\n", __FUNCTION__);
goto error;
}
#ifdef DEBUG
printf("%s done\n", __FUNCTION__);
#endif
return 0;
error:
gre_locks_dispose();
#ifdef DEBUG
printf("%s failed\n", __FUNCTION__);
#endif
return -1;
}
void
gre_locks_dispose(void)
{
#ifdef DEBUG
printf("%s ...\n", __FUNCTION__);
#endif
if (gre_sc_lck_attributes) {
lck_attr_free(gre_sc_lck_attributes);
gre_sc_lck_attributes = LCK_ATTR_NULL;
}
if (gre_ipf_lck_attributes) {
lck_attr_free(gre_ipf_lck_attributes);
gre_ipf_lck_attributes = LCK_ATTR_NULL;
}
if (gre_lck_attributes) {
lck_attr_free(gre_lck_attributes);
gre_lck_attributes = LCK_ATTR_NULL;
}
if (gre_sc_lck_grp) {
lck_grp_free(gre_sc_lck_grp);
gre_sc_lck_grp = (lck_grp_t *)0;
}
if (gre_ipf_lck_grp) {
lck_grp_free(gre_ipf_lck_grp);
gre_ipf_lck_grp = (lck_grp_t *)0;
}
if (gre_lck_grp) {
lck_grp_free(gre_lck_grp);
gre_lck_grp = (lck_grp_t *)0;
}
if (gre_grp_attributes) {
lck_grp_attr_free(gre_grp_attributes);
gre_grp_attributes = LCK_GRP_ATTR_NULL;
}
#ifdef DEBUG
printf("%s done\n", __FUNCTION__);
#endif
}