static FileInfoListPtr
GetLsCacheFileList(const char *const item)
{
int ci;
int sortBy;
int sortOrder;
FileInfoListPtr filp;
ci = LsCacheLookup(item);
if (ci < 0) {
/* This dir was not in the
* cache -- go get it.
*/
Ls(item, 'l', "", NULL);
ci = LsCacheLookup(item);
if (ci < 0)
return NULL;
}
sortBy = 'n'; /* Sort by filename. */
sortOrder = 'a'; /* Sort in ascending order. */
filp = &gLsCache[ci].fil;
SortFileInfoList(filp, sortBy, sortOrder);
return filp;
} /* GetLsCacheFileList */
/* Saves a directory listing from the given path into the cache. */
static void
LsCacheAdd(const char *const itempath, FTPFileInfoListPtr files)
{
char *cp;
int j;
/* Never cache empty listings in case of errors */
if (files->nFileInfos == 0)
return;
j = LsCacheLookup(itempath);
if (j >= 0) {
/* Directory was already in there;
* Replace it with the new
* contents.
*/
FlushLsCacheItem(j);
}
cp = StrDup(itempath);
if (cp == NULL)
return;
j = gOldestLsCacheItem;
(void) memcpy(&gLsCache[j].fil, files, sizeof(FTPFileInfoList));
(void) time(&gLsCache[j].expiration);
gLsCache[j].expiration += gLsCacheItemLifetime;
gLsCache[j].hits = 0;
gLsCache[j].itempath = cp;
Trace(1, "ls cache add: %s\n", itempath);
/* Increment the pointer. This is a circular array, so if it
* hits the end it wraps over to the other side.
*/
gOldestLsCacheItem++;
if (gOldestLsCacheItem >= kLsCacheSize)
gOldestLsCacheItem = 0;
} /* LsCacheAdd */
