static unsigned int get_max_fd_limit(void)
{
#ifdef RLIMIT_NOFILE
- struct rlimit lim;
+ {
+ struct rlimit lim;
- if (getrlimit(RLIMIT_NOFILE, &lim))
- die_errno("cannot get RLIMIT_NOFILE");
+ if (!getrlimit(RLIMIT_NOFILE, &lim))
+ return lim.rlim_cur;
+ }
+#endif
- return lim.rlim_cur;
-#elif defined(_SC_OPEN_MAX)
- return sysconf(_SC_OPEN_MAX);
-#elif defined(OPEN_MAX)
+#ifdef _SC_OPEN_MAX
+ {
+ long open_max = sysconf(_SC_OPEN_MAX);
+ if (0 < open_max)
+ return open_max;
+ /*
+ * Otherwise, we got -1 for one of the two
+ * reasons:
+ *
+ * (1) sysconf() did not understand _SC_OPEN_MAX
+ * and signaled an error with -1; or
+ * (2) sysconf() said there is no limit.
+ *
+ * We _could_ clear errno before calling sysconf() to
+ * tell these two cases apart and return a huge number
+ * in the latter case to let the caller cap it to a
+ * value that is not so selfish, but letting the
+ * fallback OPEN_MAX codepath take care of these cases
+ * is a lot simpler.
+ */
+ }
+#endif
+
+#ifdef OPEN_MAX
return OPEN_MAX;
#else
return 1; /* see the caller ;-) */
return 0;
}
-int sha1_object_info_extended(const unsigned char *sha1, struct object_info *oi)
+int sha1_object_info_extended(const unsigned char *sha1, struct object_info *oi, unsigned flags)
{
struct cached_object *co;
struct pack_entry e;
int rtype;
+ const unsigned char *real = lookup_replace_object_extended(sha1, flags);
- co = find_cached_object(sha1);
+ co = find_cached_object(real);
if (co) {
if (oi->typep)
*(oi->typep) = co->type;
return 0;
}
- if (!find_pack_entry(sha1, &e)) {
+ if (!find_pack_entry(real, &e)) {
/* Most likely it's a loose object. */
- if (!sha1_loose_object_info(sha1, oi)) {
+ if (!sha1_loose_object_info(real, oi)) {
oi->whence = OI_LOOSE;
return 0;
}
/* Not a loose object; someone else may have just packed it. */
reprepare_packed_git();
- if (!find_pack_entry(sha1, &e))
+ if (!find_pack_entry(real, &e))
return -1;
}
rtype = packed_object_info(e.p, e.offset, oi);
if (rtype < 0) {
- mark_bad_packed_object(e.p, sha1);
- return sha1_object_info_extended(sha1, oi);
+ mark_bad_packed_object(e.p, real);
+ return sha1_object_info_extended(real, oi, 0);
} else if (in_delta_base_cache(e.p, e.offset)) {
oi->whence = OI_DBCACHED;
} else {
oi.typep = &type;
oi.sizep = sizep;
- if (sha1_object_info_extended(sha1, &oi) < 0)
+ if (sha1_object_info_extended(sha1, &oi, LOOKUP_REPLACE_OBJECT) < 0)
return -1;
return type;
}
void *data;
char *path;
const struct packed_git *p;
- const unsigned char *repl = (flag & READ_SHA1_FILE_REPLACE)
- ? lookup_replace_object(sha1) : sha1;
+ const unsigned char *repl = lookup_replace_object_extended(sha1, flag);
errno = 0;
data = read_object(repl, type, size);