Am 07.04.2016 um 00:11 schrieb David Turner:
+static void share_index(struct index_state *istate, struct shm *is)
+{
+ void *new_mmap;
+ if (istate->mmap_size <= 20 ||
+ hashcmp(istate->sha1,
+ (unsigned char *)istate->mmap + istate->mmap_size - 20) ||
+ !hashcmp(istate->sha1, is->sha1) ||
+ git_shm_map(O_CREAT | O_EXCL | O_RDWR, 0700, istate->mmap_size,
+ &new_mmap, PROT_READ | PROT_WRITE, MAP_SHARED,
+ "git-index-%s", sha1_to_hex(istate->sha1)) < 0)
Builds which have NO_MMAP set require that MAP_PRIVATE is set. So I
would guess that at this point you leave those builds behind. Unless we
declare such systems as hopelessly outdated and remove NO_MMAP and
compat/mmap.c or you support index-helper only when NO_MMAP is not set.
-- Hannes
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