1#ifndef REFS_H 2#define REFS_H 3 4/* 5 * Calls the specified function for each ref file until it returns nonzero, 6 * and returns the value 7 */ 8externinthead_ref(int(*fn)(const char*path,const unsigned char*sha1)); 9externintfor_each_ref(int(*fn)(const char*path,const unsigned char*sha1)); 10 11/** Reads the refs file specified into sha1 **/ 12externintget_ref_sha1(const char*ref,unsigned char*sha1); 13 14/** Locks ref and returns the fd to give to write_ref_sha1() if the ref 15 * has the given value currently; otherwise, returns -1. 16 **/ 17externintlock_ref_sha1(const char*ref,const unsigned char*old_sha1); 18 19/** Writes sha1 into the refs file specified, locked with the given fd. **/ 20externintwrite_ref_sha1(const char*ref,int fd,const unsigned char*sha1); 21 22/** Writes sha1 into the refs file specified. **/ 23externintwrite_ref_sha1_unlocked(const char*ref,const unsigned char*sha1); 24 25/** Returns 0 if target has the right format for a ref. **/ 26externintcheck_ref_format(const char*target); 27 28#endif/* REFS_H */