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infra: automatically create any missing intermediate dirs

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This commit is contained in:
Thomas Schoebel-Theuer 2020-10-17 13:02:24 +02:00
parent e1547a1387
commit e689f17d55
1 changed files with 30 additions and 3 deletions
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33
kernel/sy_old/sy_generic.c
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@ -1070,7 +1070,7 @@ int compat_ordered_symlink(const char *oldpath,
char *ordered_readlink(const char *path, struct lamport_time *stamp)
{
char *res = mars_readlink(path, stamp);
char *res = mars_readlink(path, stamp);
if (!strcmp(res, MARS_DELETED_STR)) {
*res = '\0';
@ -1092,12 +1092,39 @@ int ordered_symlink(const char *oldpath,
const char *newpath,
const struct lamport_time *stamp)
{
char *dir_path = NULL;
int dir_len;
int status;
retry:
if (compat_deletions)
return compat_ordered_symlink(oldpath, newpath, stamp);
status = compat_ordered_symlink(oldpath, newpath, stamp);
else
status = mars_symlink(oldpath, newpath, stamp, true);
status = mars_symlink(oldpath, newpath, stamp, true);
/* Automatically create any missing path dirs */
while (unlikely(status < 0)) {
int old_len;
int check;
if (!dir_path) {
dir_path = brick_strdup(newpath);
dir_len = strlen(dir_path);
}
old_len = dir_len;
while (dir_len > 0 && dir_path[dir_len] != '/')
dir_len--;
dir_path[dir_len] = '\0';
if (dir_len <= 0 || dir_len >= old_len)
break;
check = mars_mkdir(dir_path);
if (check >= 0) {
brick_string_free(dir_path);
dir_path = NULL;
goto retry;
}
}
brick_string_free(dir_path);
return status;
}