/* * Since git has it's own cache.h which we include, * lets test on CGIT_CACHE_H to avoid confusion */ #ifndef CGIT_CACHE_H#define CGIT_CACHE_H typedef void (*cache_fill_fn)(void);  /* Print cached content to stdout, generate the content if necessary. * * Parameters *   size    max number of cache files *   path    directory used to store cache files *   key     the key used to lookup cache files *   ttl     max cache time in seconds for this key *   fn      content generator function for this key * * Return value *   0 indicates success, everything else is an error */extern int cache_process(int size, const char *path, const char *key, int ttl,			 cache_fill_fn fn);  /* List info about all cache entries on stdout */extern int cache_ls(const char *path); /* Print a message to stdout */__attribute__((format (printf,1,2)))extern void cache_log(const char *format, ...); extern unsigned long hash_str(const char *str); #endif /* CGIT_CACHE_H */