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Add witness_assert_depth[_to_rank]().

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This makes it possible to make lock state assertions about precisely
which locks are held.
This commit is contained in:
Jason Evans 2017-01-21 15:12:03 -08:00
parent 7034e6baa1
commit f56cb9a68e
7 changed files with 141 additions and 107 deletions
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8
src/huge.c
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@ -62,7 +62,7 @@ huge_palloc(tsdn_t *tsdn, arena_t *arena, size_t usize, size_t alignment,
/* Allocate one or more contiguous chunks for this request. */
assert(!tsdn_null(tsdn) || arena != NULL);
witness_assert_lock_depth(tsdn, 0); /* prof_gdump() requirement. */
witness_assert_lockless(tsdn); /* prof_gdump() requirement. */
ausize = sa2u(usize, alignment);
if (unlikely(ausize == 0 || ausize > HUGE_MAXCLASS))
@ -149,7 +149,7 @@ huge_ralloc_no_move_similar(tsdn_t *tsdn, void *ptr, size_t oldsize,
chunk_hooks_t chunk_hooks = CHUNK_HOOKS_INITIALIZER;
bool pre_zeroed, post_zeroed, gdump;
witness_assert_lock_depth(tsdn, 0); /* prof_gdump() requirement. */
witness_assert_lockless(tsdn); /* prof_gdump() requirement. */
/* Increase usize to incorporate extra. */
for (usize = usize_min; usize < usize_max && (usize_next = s2u(usize+1))
@ -223,7 +223,7 @@ huge_ralloc_no_move_shrink(tsdn_t *tsdn, void *ptr, size_t oldsize,
chunk_hooks = chunk_hooks_get(tsdn, arena);
assert(oldsize > usize);
witness_assert_lock_depth(tsdn, 0); /* prof_gdump() requirement. */
witness_assert_lockless(tsdn); /* prof_gdump() requirement. */
/* Split excess chunks. */
cdiff = CHUNK_CEILING(oldsize) - CHUNK_CEILING(usize);
@ -278,7 +278,7 @@ huge_ralloc_no_move_expand(tsdn_t *tsdn, void *ptr, size_t oldsize,
is_zeroed_subchunk = extent_node_zeroed_get(node);
malloc_mutex_unlock(tsdn, &arena->huge_mtx);
witness_assert_lock_depth(tsdn, 0); /* prof_gdump() requirement. */
witness_assert_lockless(tsdn); /* prof_gdump() requirement. */
/*
* Use is_zeroed_chunk to detect whether the trailing memory is zeroed,