summaryrefslogtreecommitdiff
path: root/deps/jemalloc/test/unit/size_classes.c
diff options
context:
space:
mode:
Diffstat (limited to 'deps/jemalloc/test/unit/size_classes.c')
-rw-r--r--deps/jemalloc/test/unit/size_classes.c183
1 files changed, 0 insertions, 183 deletions
diff --git a/deps/jemalloc/test/unit/size_classes.c b/deps/jemalloc/test/unit/size_classes.c
deleted file mode 100644
index bcff56098..000000000
--- a/deps/jemalloc/test/unit/size_classes.c
+++ /dev/null
@@ -1,183 +0,0 @@
-#include "test/jemalloc_test.h"
-
-static size_t
-get_max_size_class(void) {
- unsigned nlextents;
- size_t mib[4];
- size_t sz, miblen, max_size_class;
-
- sz = sizeof(unsigned);
- assert_d_eq(mallctl("arenas.nlextents", (void *)&nlextents, &sz, NULL,
- 0), 0, "Unexpected mallctl() error");
-
- miblen = sizeof(mib) / sizeof(size_t);
- assert_d_eq(mallctlnametomib("arenas.lextent.0.size", mib, &miblen), 0,
- "Unexpected mallctlnametomib() error");
- mib[2] = nlextents - 1;
-
- sz = sizeof(size_t);
- assert_d_eq(mallctlbymib(mib, miblen, (void *)&max_size_class, &sz,
- NULL, 0), 0, "Unexpected mallctlbymib() error");
-
- return max_size_class;
-}
-
-TEST_BEGIN(test_size_classes) {
- size_t size_class, max_size_class;
- szind_t index, max_index;
-
- max_size_class = get_max_size_class();
- max_index = sz_size2index(max_size_class);
-
- for (index = 0, size_class = sz_index2size(index); index < max_index ||
- size_class < max_size_class; index++, size_class =
- sz_index2size(index)) {
- assert_true(index < max_index,
- "Loop conditionals should be equivalent; index=%u, "
- "size_class=%zu (%#zx)", index, size_class, size_class);
- assert_true(size_class < max_size_class,
- "Loop conditionals should be equivalent; index=%u, "
- "size_class=%zu (%#zx)", index, size_class, size_class);
-
- assert_u_eq(index, sz_size2index(size_class),
- "sz_size2index() does not reverse sz_index2size(): index=%u"
- " --> size_class=%zu --> index=%u --> size_class=%zu",
- index, size_class, sz_size2index(size_class),
- sz_index2size(sz_size2index(size_class)));
- assert_zu_eq(size_class,
- sz_index2size(sz_size2index(size_class)),
- "sz_index2size() does not reverse sz_size2index(): index=%u"
- " --> size_class=%zu --> index=%u --> size_class=%zu",
- index, size_class, sz_size2index(size_class),
- sz_index2size(sz_size2index(size_class)));
-
- assert_u_eq(index+1, sz_size2index(size_class+1),
- "Next size_class does not round up properly");
-
- assert_zu_eq(size_class, (index > 0) ?
- sz_s2u(sz_index2size(index-1)+1) : sz_s2u(1),
- "sz_s2u() does not round up to size class");
- assert_zu_eq(size_class, sz_s2u(size_class-1),
- "sz_s2u() does not round up to size class");
- assert_zu_eq(size_class, sz_s2u(size_class),
- "sz_s2u() does not compute same size class");
- assert_zu_eq(sz_s2u(size_class+1), sz_index2size(index+1),
- "sz_s2u() does not round up to next size class");
- }
-
- assert_u_eq(index, sz_size2index(sz_index2size(index)),
- "sz_size2index() does not reverse sz_index2size()");
- assert_zu_eq(max_size_class, sz_index2size(
- sz_size2index(max_size_class)),
- "sz_index2size() does not reverse sz_size2index()");
-
- assert_zu_eq(size_class, sz_s2u(sz_index2size(index-1)+1),
- "sz_s2u() does not round up to size class");
- assert_zu_eq(size_class, sz_s2u(size_class-1),
- "sz_s2u() does not round up to size class");
- assert_zu_eq(size_class, sz_s2u(size_class),
- "sz_s2u() does not compute same size class");
-}
-TEST_END
-
-TEST_BEGIN(test_psize_classes) {
- size_t size_class, max_psz;
- pszind_t pind, max_pind;
-
- max_psz = get_max_size_class() + PAGE;
- max_pind = sz_psz2ind(max_psz);
-
- for (pind = 0, size_class = sz_pind2sz(pind);
- pind < max_pind || size_class < max_psz;
- pind++, size_class = sz_pind2sz(pind)) {
- assert_true(pind < max_pind,
- "Loop conditionals should be equivalent; pind=%u, "
- "size_class=%zu (%#zx)", pind, size_class, size_class);
- assert_true(size_class < max_psz,
- "Loop conditionals should be equivalent; pind=%u, "
- "size_class=%zu (%#zx)", pind, size_class, size_class);
-
- assert_u_eq(pind, sz_psz2ind(size_class),
- "sz_psz2ind() does not reverse sz_pind2sz(): pind=%u -->"
- " size_class=%zu --> pind=%u --> size_class=%zu", pind,
- size_class, sz_psz2ind(size_class),
- sz_pind2sz(sz_psz2ind(size_class)));
- assert_zu_eq(size_class, sz_pind2sz(sz_psz2ind(size_class)),
- "sz_pind2sz() does not reverse sz_psz2ind(): pind=%u -->"
- " size_class=%zu --> pind=%u --> size_class=%zu", pind,
- size_class, sz_psz2ind(size_class),
- sz_pind2sz(sz_psz2ind(size_class)));
-
- assert_u_eq(pind+1, sz_psz2ind(size_class+1),
- "Next size_class does not round up properly");
-
- assert_zu_eq(size_class, (pind > 0) ?
- sz_psz2u(sz_pind2sz(pind-1)+1) : sz_psz2u(1),
- "sz_psz2u() does not round up to size class");
- assert_zu_eq(size_class, sz_psz2u(size_class-1),
- "sz_psz2u() does not round up to size class");
- assert_zu_eq(size_class, sz_psz2u(size_class),
- "sz_psz2u() does not compute same size class");
- assert_zu_eq(sz_psz2u(size_class+1), sz_pind2sz(pind+1),
- "sz_psz2u() does not round up to next size class");
- }
-
- assert_u_eq(pind, sz_psz2ind(sz_pind2sz(pind)),
- "sz_psz2ind() does not reverse sz_pind2sz()");
- assert_zu_eq(max_psz, sz_pind2sz(sz_psz2ind(max_psz)),
- "sz_pind2sz() does not reverse sz_psz2ind()");
-
- assert_zu_eq(size_class, sz_psz2u(sz_pind2sz(pind-1)+1),
- "sz_psz2u() does not round up to size class");
- assert_zu_eq(size_class, sz_psz2u(size_class-1),
- "sz_psz2u() does not round up to size class");
- assert_zu_eq(size_class, sz_psz2u(size_class),
- "sz_psz2u() does not compute same size class");
-}
-TEST_END
-
-TEST_BEGIN(test_overflow) {
- size_t max_size_class, max_psz;
-
- max_size_class = get_max_size_class();
- max_psz = max_size_class + PAGE;
-
- assert_u_eq(sz_size2index(max_size_class+1), NSIZES,
- "sz_size2index() should return NSIZES on overflow");
- assert_u_eq(sz_size2index(ZU(PTRDIFF_MAX)+1), NSIZES,
- "sz_size2index() should return NSIZES on overflow");
- assert_u_eq(sz_size2index(SIZE_T_MAX), NSIZES,
- "sz_size2index() should return NSIZES on overflow");
-
- assert_zu_eq(sz_s2u(max_size_class+1), 0,
- "sz_s2u() should return 0 for unsupported size");
- assert_zu_eq(sz_s2u(ZU(PTRDIFF_MAX)+1), 0,
- "sz_s2u() should return 0 for unsupported size");
- assert_zu_eq(sz_s2u(SIZE_T_MAX), 0,
- "sz_s2u() should return 0 on overflow");
-
- assert_u_eq(sz_psz2ind(max_size_class+1), NPSIZES,
- "sz_psz2ind() should return NPSIZES on overflow");
- assert_u_eq(sz_psz2ind(ZU(PTRDIFF_MAX)+1), NPSIZES,
- "sz_psz2ind() should return NPSIZES on overflow");
- assert_u_eq(sz_psz2ind(SIZE_T_MAX), NPSIZES,
- "sz_psz2ind() should return NPSIZES on overflow");
-
- assert_zu_eq(sz_psz2u(max_size_class+1), max_psz,
- "sz_psz2u() should return (LARGE_MAXCLASS + PAGE) for unsupported"
- " size");
- assert_zu_eq(sz_psz2u(ZU(PTRDIFF_MAX)+1), max_psz,
- "sz_psz2u() should return (LARGE_MAXCLASS + PAGE) for unsupported "
- "size");
- assert_zu_eq(sz_psz2u(SIZE_T_MAX), max_psz,
- "sz_psz2u() should return (LARGE_MAXCLASS + PAGE) on overflow");
-}
-TEST_END
-
-int
-main(void) {
- return test(
- test_size_classes,
- test_psize_classes,
- test_overflow);
-}