69 lines
2.2 KiB
Diff
69 lines
2.2 KiB
Diff
From 0695bdd057b2cbfc6146ac498179c0f162ee889f Mon Sep 17 00:00:00 2001
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From: David Lutterkort <lutter@redhat.com>
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Date: Tue, 29 Jun 2010 15:46:53 -0700
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Subject: [PATCH 8/9] Add utility tree_store_value to avoid unnecessary strdup's
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* src/internal.h (tree_store_value): add prototype
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* src/augeas.c (tree_store_value): new function; (tree_set_value): use
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tree_store_value
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---
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src/augeas.c | 18 ++++++++++++++----
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src/internal.h | 5 ++++-
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2 files changed, 18 insertions(+), 5 deletions(-)
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diff --git a/src/augeas.c b/src/augeas.c
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index 5ca1789..744b699 100644
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--- a/src/augeas.c
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+++ b/src/augeas.c
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@@ -156,17 +156,27 @@ struct tree *tree_find_cr(struct augeas *aug, const char *path) {
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return result;
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}
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-int tree_set_value(struct tree *tree, const char *value) {
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+void tree_store_value(struct tree *tree, char **value) {
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if (tree->value != NULL) {
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free(tree->value);
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tree->value = NULL;
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}
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+ if (*value != NULL) {
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+ tree->value = *value;
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+ *value = NULL;
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+ }
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+ tree_mark_dirty(tree);
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+}
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+
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+int tree_set_value(struct tree *tree, const char *value) {
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+ char *v = NULL;
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+
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if (value != NULL) {
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- tree->value = strdup(value);
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- if (tree->value == NULL)
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+ v = strdup(value);
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+ if (v == NULL)
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return -1;
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}
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- tree_mark_dirty(tree);
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+ tree_store_value(tree, &v);
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return 0;
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}
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diff --git a/src/internal.h b/src/internal.h
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index f1e6f3a..7513d47 100644
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--- a/src/internal.h
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+++ b/src/internal.h
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@@ -389,7 +389,10 @@ struct tree *tree_child_cr(struct tree *tree, const char *label);
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/* Create a path in the tree; nodes along the path are looked up with
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* tree_child_cr */
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struct tree *tree_path_cr(struct tree *tree, int n, ...);
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-/* Set the value of TREE and update dirty flags */
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+/* Store VALUE directly as the value of TREE and set VALUE to NULL.
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+ * Update dirty flags */
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+void tree_store_value(struct tree *tree, char **value);
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+/* Set the value of TREE to a copy of VALUE and update dirty flags */
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int tree_set_value(struct tree *tree, const char *value);
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/* Cleanly remove all children of TREE, but leave TREE itself unchanged */
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void tree_unlink_children(struct augeas *aug, struct tree *tree);
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--
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1.6.6.1
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