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path-util: paths_check_timestamp() opimizations

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This commit is contained in:
Lennart Poettering 2013-11-06 17:34:54 +01:00
parent 45a7c6b5d3
commit 4087cb9e8f
1 changed files with 18 additions and 12 deletions
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30
src/shared/path-util.c
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@ -428,6 +428,8 @@ int path_is_os_tree(const char *path) {
int find_binary(const char *name, char **filename) {
assert(name);
assert(filename);
if (strchr(name, '/')) {
char *p;
@ -474,33 +476,37 @@ int find_binary(const char *name, char **filename) {
}
}
bool paths_check_timestamp(char **paths, usec_t *timestamp, bool update)
{
unsigned int i;
bool paths_check_timestamp(char **paths, usec_t *timestamp, bool update) {
bool changed = false;
char **i;
assert(timestamp);
if (paths == NULL)
goto out;
return false;
for (i = 0; paths[i]; i++) {
STRV_FOREACH(i, paths) {
struct stat stats;
usec_t u;
if (stat(paths[i], &stats) < 0)
if (stat(*i, &stats) < 0)
continue;
u = timespec_load(&stats.st_mtim);
/* first check */
if (*timestamp >= timespec_load(&stats.st_mtim))
if (*timestamp >= u)
continue;
log_debug("timestamp of '%s' changed\n", paths[i]);
changed = true;
log_debug("timestamp of '%s' changed\n", *i);
/* update timestamp */
if (update)
*timestamp = timespec_load(&stats.st_mtim);
if (update) {
*timestamp = u;
changed = true;
} else
return true;
}
out:
return changed;
}