/*! \brief Returns a pointer to the global jamfile_cache.
The cache is being lazy-allocated.
\return A pointer to the global jamfile_cache, or 0, if an error occured.
*/
static
jamfile_cache*
get_jcache(void)
{
if (!jamfileCache)
jamfileCache = new_jamfile_cache();
if (jamfileCache && !jamfileCache->cache_file) {
char* filename = jcache_name();
if (filename) {
if (!read_jcache(jamfileCache, filename)) {
// An error occurred while reading the cache file. Remove all
// entries that we read in, assuming they might be corrupted.
// Since the hash doesn't support removing entries, we create
// a new one and copy over the entries we want to keep.
int count = jamfileCache->filenames->count;
int i;
jamfile_cache* newCache = new_jamfile_cache();
if (!newCache) {
fprintf(stderr, "Out of memory!\n");
exit(1);
}
for (i = 0; i < count; i++) {
char* entryname = jamfileCache->filenames->strings[i];
jcache_entry* entry = find_jcache_entry(jamfileCache,
entryname);
if (entry->used) {
jcache_entry newEntry;
if (!init_jcache_entry(&newEntry, entryname,
entry->time, entry->used)) {
fprintf(stderr, "Out of memory!\n");
exit(1);
}
delete_string_list(newEntry.strings);
newEntry.strings = entry->strings;
entry->strings = 0;
if (!add_jcache_entry(newCache, &newEntry)) {
fprintf(stderr, "Out of memory!\n");
exit(1);
}
}
}
delete_jamfile_cache(jamfileCache);
jamfileCache = newCache;
jamfileCache->cache_file = filename;
}
}
}
return jamfileCache;
}
/*! \brief Returns a pointer to the global jamfile_cache.
The cache is being lazy-allocated.
\return A pointer to the global jamfile_cache, or 0, if an error occured.
*/
static
jamfile_cache*
get_jcache(void)
{
if (!jamfileCache)
jamfileCache = new_jamfile_cache();
if (jamfileCache && !jamfileCache->cache_file) {
char* filename = jcache_name();
if (filename)
read_jcache(jamfileCache, filename);
}
return jamfileCache;
}