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stat-util: split null_or_empty() into two

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This commit is contained in:
Yu Watanabe
2025-06-26 22:49:31 +09:00
parent 7a58b45017
commit 9d0fed7b44
2 changed files with 12 additions and 8 deletions
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14
src/basic/stat-util.c
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@@ -184,19 +184,19 @@ int dir_is_empty_at(int dir_fd, const char *path, bool ignore_hidden_or_backup)
return 1;
}
bool null_or_empty(struct stat *st) {
bool stat_may_be_dev_null(struct stat *st) {
assert(st);
if (S_ISREG(st->st_mode) && st->st_size <= 0)
return true;
/* We don't want to hardcode the major/minor of /dev/null, hence we do a simpler "is this a character
* device node?" check. */
if (S_ISCHR(st->st_mode))
return true;
return S_ISCHR(st->st_mode);
}
return false;
bool stat_is_empty(struct stat *st) {
assert(st);
return S_ISREG(st->st_mode) && st->st_size <= 0;
}
int null_or_empty_path_with_root(const char *fn, const char *root) {

6
src/basic/stat-util.h
View File

@@ -29,7 +29,11 @@ static inline int dir_is_empty(const char *path, bool ignore_hidden_or_backup) {
return dir_is_empty_at(AT_FDCWD, path, ignore_hidden_or_backup);
}
bool null_or_empty(struct stat *st) _pure_;
bool stat_may_be_dev_null(struct stat *st) _pure_;
bool stat_is_empty(struct stat *st) _pure_;
static inline bool null_or_empty(struct stat *st) {
return stat_may_be_dev_null(st) || stat_is_empty(st);
}
int null_or_empty_path_with_root(const char *fn, const char *root);
static inline int null_or_empty_path(const char *fn) {