Modify extent hook functions to take an (extent_t *) argument.
This facilitates the application accessing its own extent allocator metadata during hook invocations. This resolves #259.
This commit is contained in:
@@ -4,8 +4,8 @@
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const char *malloc_conf = "junk:false";
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#endif
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static extent_hooks_t orig_hooks;
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static extent_hooks_t old_hooks;
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static extent_hooks_t *orig_hooks;
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static extent_hooks_t *old_hooks;
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static bool do_dalloc = true;
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static bool do_decommit;
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@@ -24,96 +24,111 @@ static bool did_merge;
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# define TRACE_HOOK(fmt, ...)
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#endif
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void *
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extent_alloc(void *new_addr, size_t size, size_t alignment, bool *zero,
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bool *commit, unsigned arena_ind)
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static void *
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extent_alloc(extent_hooks_t *extent_hooks, void *new_addr, size_t size,
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size_t alignment, bool *zero, bool *commit, unsigned arena_ind)
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{
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TRACE_HOOK("%s(new_addr=%p, size=%zu, alignment=%zu, *zero=%s, "
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"*commit=%s, arena_ind=%u)\n", __func__, new_addr, size, alignment,
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*zero ? "true" : "false", *commit ? "true" : "false", arena_ind);
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TRACE_HOOK("%s(extent_hooks=%p, new_addr=%p, size=%zu, alignment=%zu, "
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"*zero=%s, *commit=%s, arena_ind=%u)\n", __func__, extent_hooks,
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new_addr, size, alignment, *zero ? "true" : "false", *commit ?
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"true" : "false", arena_ind);
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assert(extent_hooks->alloc == extent_alloc);
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did_alloc = true;
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return (old_hooks.alloc(new_addr, size, alignment, zero, commit,
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arena_ind));
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return (old_hooks->alloc(old_hooks, new_addr, size, alignment, zero,
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commit, arena_ind));
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}
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bool
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extent_dalloc(void *addr, size_t size, bool committed, unsigned arena_ind)
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static bool
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extent_dalloc(extent_hooks_t *extent_hooks, void *addr, size_t size,
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bool committed, unsigned arena_ind)
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{
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TRACE_HOOK("%s(addr=%p, size=%zu, committed=%s, arena_ind=%u)\n",
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__func__, addr, size, committed ? "true" : "false", arena_ind);
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TRACE_HOOK("%s(extent_hooks=%p, addr=%p, size=%zu, committed=%s, "
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"arena_ind=%u)\n", __func__, extent_hooks, addr, size, committed ?
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"true" : "false", arena_ind);
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assert(extent_hooks->dalloc == extent_dalloc);
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did_dalloc = true;
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if (!do_dalloc)
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return (true);
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return (old_hooks.dalloc(addr, size, committed, arena_ind));
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return (old_hooks->dalloc(old_hooks, addr, size, committed, arena_ind));
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}
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bool
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extent_commit(void *addr, size_t size, size_t offset, size_t length,
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unsigned arena_ind)
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static bool
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extent_commit(extent_hooks_t *extent_hooks, void *addr, size_t size,
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size_t offset, size_t length, unsigned arena_ind)
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{
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bool err;
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TRACE_HOOK("%s(addr=%p, size=%zu, offset=%zu, length=%zu, "
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"arena_ind=%u)\n", __func__, addr, size, offset, length,
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TRACE_HOOK("%s(extent_hooks=%p, addr=%p, size=%zu, offset=%zu, "
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"length=%zu, arena_ind=%u)\n", __func__, extent_hooks, addr, size,
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offset, length, arena_ind);
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assert(extent_hooks->commit == extent_commit);
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err = old_hooks->commit(old_hooks, addr, size, offset, length,
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arena_ind);
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err = old_hooks.commit(addr, size, offset, length, arena_ind);
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did_commit = !err;
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return (err);
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}
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bool
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extent_decommit(void *addr, size_t size, size_t offset, size_t length,
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unsigned arena_ind)
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static bool
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extent_decommit(extent_hooks_t *extent_hooks, void *addr, size_t size,
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size_t offset, size_t length, unsigned arena_ind)
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{
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bool err;
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TRACE_HOOK("%s(addr=%p, size=%zu, offset=%zu, length=%zu, "
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"arena_ind=%u)\n", __func__, addr, size, offset, length,
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arena_ind);
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TRACE_HOOK("%s(extent_hooks=%p, addr=%p, size=%zu, offset=%zu, "
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"length=%zu, arena_ind=%u)\n", __func__, extent_hooks, addr, size,
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offset, length, arena_ind);
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assert(extent_hooks->decommit == extent_decommit);
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if (!do_decommit)
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return (true);
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err = old_hooks.decommit(addr, size, offset, length, arena_ind);
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err = old_hooks->decommit(old_hooks, addr, size, offset, length,
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arena_ind);
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did_decommit = !err;
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return (err);
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}
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bool
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extent_purge(void *addr, size_t size, size_t offset, size_t length,
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unsigned arena_ind)
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static bool
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extent_purge(extent_hooks_t *extent_hooks, void *addr, size_t size,
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size_t offset, size_t length, unsigned arena_ind)
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{
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TRACE_HOOK("%s(addr=%p, size=%zu, offset=%zu, length=%zu "
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"arena_ind=%u)\n", __func__, addr, size, offset, length,
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arena_ind);
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TRACE_HOOK("%s(extent_hooks=%p, addr=%p, size=%zu, offset=%zu, "
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"length=%zu arena_ind=%u)\n", __func__, extent_hooks, addr, size,
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offset, length, arena_ind);
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assert(extent_hooks->purge == extent_purge);
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did_purge = true;
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return (old_hooks.purge(addr, size, offset, length, arena_ind));
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}
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bool
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extent_split(void *addr, size_t size, size_t size_a, size_t size_b,
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bool committed, unsigned arena_ind)
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{
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TRACE_HOOK("%s(addr=%p, size=%zu, size_a=%zu, size_b=%zu, "
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"committed=%s, arena_ind=%u)\n", __func__, addr, size, size_a,
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size_b, committed ? "true" : "false", arena_ind);
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did_split = true;
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return (old_hooks.split(addr, size, size_a, size_b, committed,
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return (old_hooks->purge(old_hooks, addr, size, offset, length,
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arena_ind));
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}
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bool
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extent_merge(void *addr_a, size_t size_a, void *addr_b, size_t size_b,
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bool committed, unsigned arena_ind)
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static bool
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extent_split(extent_hooks_t *extent_hooks, void *addr, size_t size,
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size_t size_a, size_t size_b, bool committed, unsigned arena_ind)
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{
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TRACE_HOOK("%s(addr_a=%p, size_a=%zu, addr_b=%p size_b=%zu, "
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"committed=%s, arena_ind=%u)\n", __func__, addr_a, size_a, addr_b,
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size_b, committed ? "true" : "false", arena_ind);
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TRACE_HOOK("%s(extent_hooks=%p, addr=%p, size=%zu, size_a=%zu, "
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"size_b=%zu, committed=%s, arena_ind=%u)\n", __func__, extent_hooks,
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addr, size, size_a, size_b, committed ? "true" : "false",
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arena_ind);
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assert(extent_hooks->split == extent_split);
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did_split = true;
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return (old_hooks->split(old_hooks, addr, size, size_a, size_b,
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committed, arena_ind));
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}
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static bool
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extent_merge(extent_hooks_t *extent_hooks, void *addr_a, size_t size_a,
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void *addr_b, size_t size_b, bool committed, unsigned arena_ind)
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{
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TRACE_HOOK("%s(extent_hooks=%p, addr_a=%p, size_a=%zu, addr_b=%p "
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"size_b=%zu, committed=%s, arena_ind=%u)\n", __func__, extent_hooks,
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addr_a, size_a, addr_b, size_b, committed ? "true" : "false",
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arena_ind);
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assert(extent_hooks->merge == extent_merge);
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did_merge = true;
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return (old_hooks.merge(addr_a, size_a, addr_b, size_b,
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return (old_hooks->merge(old_hooks, addr_a, size_a, addr_b, size_b,
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committed, arena_ind));
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}
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@@ -125,7 +140,7 @@ TEST_BEGIN(test_extent)
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int flags;
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size_t hooks_mib[3], purge_mib[3];
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size_t hooks_miblen, purge_miblen;
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extent_hooks_t new_hooks = {
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extent_hooks_t hooks = {
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extent_alloc,
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extent_dalloc,
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extent_commit,
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@@ -134,6 +149,7 @@ TEST_BEGIN(test_extent)
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extent_split,
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extent_merge
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};
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extent_hooks_t *new_hooks = &hooks;
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bool xallocx_success_a, xallocx_success_b, xallocx_success_c;
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sz = sizeof(unsigned);
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@@ -146,21 +162,21 @@ TEST_BEGIN(test_extent)
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assert_d_eq(mallctlnametomib("arena.0.extent_hooks", hooks_mib,
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&hooks_miblen), 0, "Unexpected mallctlnametomib() failure");
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hooks_mib[1] = (size_t)arena_ind;
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old_size = sizeof(extent_hooks_t);
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new_size = sizeof(extent_hooks_t);
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old_size = sizeof(extent_hooks_t *);
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new_size = sizeof(extent_hooks_t *);
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assert_d_eq(mallctlbymib(hooks_mib, hooks_miblen, &old_hooks, &old_size,
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&new_hooks, new_size), 0, "Unexpected extent_hooks error");
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orig_hooks = old_hooks;
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assert_ptr_ne(old_hooks.alloc, extent_alloc, "Unexpected alloc error");
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assert_ptr_ne(old_hooks.dalloc, extent_dalloc,
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assert_ptr_ne(old_hooks->alloc, extent_alloc, "Unexpected alloc error");
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assert_ptr_ne(old_hooks->dalloc, extent_dalloc,
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"Unexpected dalloc error");
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assert_ptr_ne(old_hooks.commit, extent_commit,
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assert_ptr_ne(old_hooks->commit, extent_commit,
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"Unexpected commit error");
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assert_ptr_ne(old_hooks.decommit, extent_decommit,
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assert_ptr_ne(old_hooks->decommit, extent_decommit,
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"Unexpected decommit error");
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assert_ptr_ne(old_hooks.purge, extent_purge, "Unexpected purge error");
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assert_ptr_ne(old_hooks.split, extent_split, "Unexpected split error");
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assert_ptr_ne(old_hooks.merge, extent_merge, "Unexpected merge error");
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assert_ptr_ne(old_hooks->purge, extent_purge, "Unexpected purge error");
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assert_ptr_ne(old_hooks->split, extent_split, "Unexpected split error");
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assert_ptr_ne(old_hooks->merge, extent_merge, "Unexpected merge error");
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/* Get large size classes. */
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sz = sizeof(size_t);
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@@ -228,19 +244,20 @@ TEST_BEGIN(test_extent)
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&old_hooks, new_size), 0, "Unexpected extent_hooks error");
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assert_d_eq(mallctlbymib(hooks_mib, hooks_miblen, &old_hooks, &old_size,
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NULL, 0), 0, "Unexpected extent_hooks error");
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assert_ptr_eq(old_hooks.alloc, orig_hooks.alloc,
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assert_ptr_eq(old_hooks, orig_hooks, "Unexpected hooks error");
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assert_ptr_eq(old_hooks->alloc, orig_hooks->alloc,
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"Unexpected alloc error");
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assert_ptr_eq(old_hooks.dalloc, orig_hooks.dalloc,
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assert_ptr_eq(old_hooks->dalloc, orig_hooks->dalloc,
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"Unexpected dalloc error");
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assert_ptr_eq(old_hooks.commit, orig_hooks.commit,
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assert_ptr_eq(old_hooks->commit, orig_hooks->commit,
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"Unexpected commit error");
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assert_ptr_eq(old_hooks.decommit, orig_hooks.decommit,
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assert_ptr_eq(old_hooks->decommit, orig_hooks->decommit,
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"Unexpected decommit error");
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assert_ptr_eq(old_hooks.purge, orig_hooks.purge,
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assert_ptr_eq(old_hooks->purge, orig_hooks->purge,
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"Unexpected purge error");
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assert_ptr_eq(old_hooks.split, orig_hooks.split,
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assert_ptr_eq(old_hooks->split, orig_hooks->split,
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"Unexpected split error");
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assert_ptr_eq(old_hooks.merge, orig_hooks.merge,
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assert_ptr_eq(old_hooks->merge, orig_hooks->merge,
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"Unexpected merge error");
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}
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TEST_END
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