19ff2cefba
This makes it possible to discard all of an arena's allocations in a single operation. This resolves #146.
161 lines
3.4 KiB
C
161 lines
3.4 KiB
C
#include "test/jemalloc_test.h"
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#ifdef JEMALLOC_PROF
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const char *malloc_conf = "prof:true,lg_prof_sample:0";
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#endif
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static unsigned
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get_nsizes_impl(const char *cmd)
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{
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unsigned ret;
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size_t z;
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z = sizeof(unsigned);
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assert_d_eq(mallctl(cmd, &ret, &z, NULL, 0), 0,
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"Unexpected mallctl(\"%s\", ...) failure", cmd);
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return (ret);
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}
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static unsigned
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get_nsmall(void)
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{
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return (get_nsizes_impl("arenas.nbins"));
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}
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static unsigned
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get_nlarge(void)
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{
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return (get_nsizes_impl("arenas.nlruns"));
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}
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static unsigned
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get_nhuge(void)
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{
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return (get_nsizes_impl("arenas.nhchunks"));
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}
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static size_t
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get_size_impl(const char *cmd, size_t ind)
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{
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size_t ret;
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size_t z;
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size_t mib[4];
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size_t miblen = 4;
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z = sizeof(size_t);
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assert_d_eq(mallctlnametomib(cmd, mib, &miblen),
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0, "Unexpected mallctlnametomib(\"%s\", ...) failure", cmd);
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mib[2] = ind;
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z = sizeof(size_t);
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assert_d_eq(mallctlbymib(mib, miblen, &ret, &z, NULL, 0),
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0, "Unexpected mallctlbymib([\"%s\", %zu], ...) failure", cmd, ind);
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return (ret);
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}
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static size_t
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get_small_size(size_t ind)
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{
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return (get_size_impl("arenas.bin.0.size", ind));
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}
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static size_t
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get_large_size(size_t ind)
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{
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return (get_size_impl("arenas.lrun.0.size", ind));
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}
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static size_t
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get_huge_size(size_t ind)
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{
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return (get_size_impl("arenas.hchunk.0.size", ind));
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}
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TEST_BEGIN(test_arena_reset)
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{
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#define NHUGE 4
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unsigned arena_ind, nsmall, nlarge, nhuge, nptrs, i;
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size_t sz, miblen;
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void **ptrs;
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size_t mib[3];
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tsd_t *tsd;
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test_skip_if((config_valgrind && unlikely(in_valgrind)) || (config_fill
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&& unlikely(opt_quarantine)));
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sz = sizeof(unsigned);
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assert_d_eq(mallctl("arenas.extend", &arena_ind, &sz, NULL, 0), 0,
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"Unexpected mallctl() failure");
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nsmall = get_nsmall();
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nlarge = get_nlarge();
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nhuge = get_nhuge() > NHUGE ? NHUGE : get_nhuge();
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nptrs = nsmall + nlarge + nhuge;
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ptrs = (void **)malloc(nptrs * sizeof(void *));
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assert_ptr_not_null(ptrs, "Unexpected malloc() failure");
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/* Allocate objects with a wide range of sizes. */
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for (i = 0; i < nsmall; i++) {
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sz = get_small_size(i);
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ptrs[i] = mallocx(sz, MALLOCX_ARENA(arena_ind));
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assert_ptr_not_null(ptrs[i],
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"Unexpected mallocx(%zu, MALLOCX_ARENA(%u)) failure", sz,
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arena_ind);
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}
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for (i = 0; i < nlarge; i++) {
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sz = get_large_size(i);
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ptrs[nsmall + i] = mallocx(sz, MALLOCX_ARENA(arena_ind));
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assert_ptr_not_null(ptrs[i],
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"Unexpected mallocx(%zu, MALLOCX_ARENA(%u)) failure", sz,
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arena_ind);
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}
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for (i = 0; i < nhuge; i++) {
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sz = get_huge_size(i);
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ptrs[nsmall + nlarge + i] = mallocx(sz,
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MALLOCX_ARENA(arena_ind));
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assert_ptr_not_null(ptrs[i],
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"Unexpected mallocx(%zu, MALLOCX_ARENA(%u)) failure", sz,
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arena_ind);
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}
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tsd = tsd_fetch();
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/* Verify allocations. */
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for (i = 0; i < nptrs; i++) {
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assert_zu_gt(ivsalloc(tsd, ptrs[i], false), 0,
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"Allocation should have queryable size");
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}
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/* Reset. */
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miblen = sizeof(mib)/sizeof(size_t);
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assert_d_eq(mallctlnametomib("arena.0.reset", mib, &miblen), 0,
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"Unexpected mallctlnametomib() failure");
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mib[1] = (size_t)arena_ind;
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assert_d_eq(mallctlbymib(mib, miblen, NULL, NULL, NULL, 0), 0,
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"Unexpected mallctlbymib() failure");
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/* Verify allocations no longer exist. */
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for (i = 0; i < nptrs; i++) {
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assert_zu_eq(ivsalloc(tsd, ptrs[i], false), 0,
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"Allocation should no longer exist");
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}
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free(ptrs);
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}
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TEST_END
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int
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main(void)
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{
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return (test(
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test_arena_reset));
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}
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