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Extent -> Ehooks: Move merge hook.

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David Goldblatt 2019-12-03 14:03:38 -08:00 • committed by David Goldblatt
parent 1fff4d2ee3
commit 2fe5108263
4 changed files with 46 additions and 48 deletions
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26
src/ehooks.c
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@ -182,3 +182,29 @@ ehooks_default_split(extent_hooks_t *extent_hooks, void *addr, size_t size,
size_t size_a, size_t size_b, bool committed, unsigned arena_ind) {
return ehooks_default_split_impl();
}
bool
ehooks_default_merge_impl(void *addr_a, void *addr_b) {
if (!maps_coalesce && !opt_retain) {
return true;
}
if (have_dss && !extent_dss_mergeable(addr_a, addr_b)) {
return true;
}
return false;
}
bool
ehooks_default_merge(extent_hooks_t *extent_hooks, void *addr_a, size_t size_a,
void *addr_b, size_t size_b, bool committed, unsigned arena_ind) {
if (!maps_coalesce) {
tsdn_t *tsdn = tsdn_fetch();
extent_t *a = iealloc(tsdn, addr_a);
extent_t *b = iealloc(tsdn, addr_b);
if (extent_head_no_merge(a, b)) {
return true;
}
}
return ehooks_default_merge_impl(addr_a, addr_b);
}