diff options
Diffstat (limited to 'module/nvpair/nvpair.c')
| -rw-r--r-- | module/nvpair/nvpair.c | 52 |
1 files changed, 49 insertions, 3 deletions
diff --git a/module/nvpair/nvpair.c b/module/nvpair/nvpair.c index 77891bf77..8115091ab 100644 --- a/module/nvpair/nvpair.c +++ b/module/nvpair/nvpair.c @@ -20,12 +20,10 @@ */ /* - * Copyright 2008 Sun Microsystems, Inc. All rights reserved. + * Copyright 2009 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. */ -#pragma ident "%Z%%M% %I% %E% SMI" - #include <sys/stropts.h> #include <sys/debug.h> #include <sys/isa_defs.h> @@ -692,6 +690,18 @@ nvlist_remove(nvlist_t *nvl, const char *name, data_type_t type) return (ENOENT); } +int +nvlist_remove_nvpair(nvlist_t *nvl, nvpair_t *nvp) +{ + if (nvl == NULL || nvp == NULL) + return (EINVAL); + + nvp_buf_unlink(nvl, nvp); + nvpair_free(nvp); + nvp_buf_free(nvl, nvp); + return (0); +} + /* * This function calculates the size of an nvpair value. * @@ -1162,6 +1172,42 @@ nvlist_next_nvpair(nvlist_t *nvl, nvpair_t *nvp) return (curr != NULL ? &curr->nvi_nvp : NULL); } +nvpair_t * +nvlist_prev_nvpair(nvlist_t *nvl, nvpair_t *nvp) +{ + nvpriv_t *priv; + i_nvp_t *curr; + + if (nvl == NULL || + (priv = (nvpriv_t *)(uintptr_t)nvl->nvl_priv) == NULL) + return (NULL); + + curr = NVPAIR2I_NVP(nvp); + + if (nvp == NULL) + curr = priv->nvp_last; + else if (priv->nvp_curr == curr || nvlist_contains_nvp(nvl, nvp)) + curr = curr->nvi_prev; + else + curr = NULL; + + priv->nvp_curr = curr; + + return (curr != NULL ? &curr->nvi_nvp : NULL); +} + +boolean_t +nvlist_empty(nvlist_t *nvl) +{ + nvpriv_t *priv; + + if (nvl == NULL || + (priv = (nvpriv_t *)(uintptr_t)nvl->nvl_priv) == NULL) + return (B_TRUE); + + return (priv->nvp_list == NULL); +} + char * nvpair_name(nvpair_t *nvp) { |