[PATCH 11/12] dir.c: provide free_directory() for reclaiming dir_struct memory
From: Adam Spiers <git@adamspiers.org>
Signed-off-by: Adam Spiers <git@adamspiers.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
---
Documentation/technical/api-directory-listing.txt | 2 ++
dir.c | 28 +++++++++++++++++++++--
dir.h | 1 +
3 files changed, 29 insertions(+), 2 deletions(-)
diff --git a/Documentation/technical/api-directory-listing.txt b/Documentation/technical/api-directory-listing.txt
index add6f43..ca571a8 100644
--- a/Documentation/technical/api-directory-listing.txt
+++ b/Documentation/technical/api-directory-listing.txt
@@ -76,4 +76,6 @@ marked. If you to exclude files, make sure you have loaded index first.
* Use `dir.entries[]`.
+* Call `free_directory()` when none of the contained elements are no longer in use.
+
(JC)
diff --git a/dir.c b/dir.c
index 81a5dd5..d50634d 100644
--- a/dir.c
+++ b/dir.c
@@ -481,6 +481,16 @@ void add_excludes_from_file(struct dir_struct *dir, const char *fname)
die("cannot use %s as an exclude file", fname);
}
+static void free_exclude_stack(struct exclude_stack *stk)
+{
+ free(stk->filebuf);
+ free(stk);
+}
+
+/*
+ * Loads the per-directory exclude list for the substring of base
+ * which has a char length of baselen.
+ */
static void prep_exclude(struct dir_struct *dir, const char *base, int baselen)
{
struct exclude_list *el;
@@ -502,8 +512,7 @@ static void prep_exclude(struct dir_struct *dir, const char *base, int baselen)
struct exclude *exclude = el->excludes[--el->nr];
free(exclude);
}
- free(stk->filebuf);
- free(stk);
+ free_exclude_stack(stk);
}
/* Read from the parent directories and push them down. */
@@ -1521,3 +1530,18 @@ void free_pathspec(struct pathspec *pathspec)
free(pathspec->items);
pathspec->items = NULL;
}
+
+void free_directory(struct dir_struct *dir)
+{
+ struct exclude_stack *stk;
+ int st;
+ for (st = EXC_CMDL; st <= EXC_FILE; st++)
+ free_excludes(&dir->exclude_list[st]);
+
+ stk = dir->exclude_stack;
+ while (stk) {
+ struct exclude_stack *prev = stk->prev;
+ free_exclude_stack(stk);
+ stk = prev;
+ }
+}
diff --git a/dir.h b/dir.h
index 3921aa9..fb57c66 100644
--- a/dir.h
+++ b/dir.h
@@ -117,6 +117,7 @@ extern void parse_exclude_pattern(const char **string, int *patternlen, int *fla
extern void add_exclude(const char *string, const char *base,
int baselen, struct exclude_list *el, const char *src, int srcpos);
extern void free_excludes(struct exclude_list *el);
+extern void free_directory(struct dir_struct *dir);
extern int file_exists(const char *);
extern int is_inside_dir(const char *dir);
--
1.8.0.rc0.29.g1fdd78f
Nguyễn Thái Ngọc Duy <pclouds@gmail.com>