mirror of
https://github.com/jart/cosmopolitan.git
synced 2025-01-31 19:43:32 +00:00
235 lines
7.6 KiB
C
235 lines
7.6 KiB
C
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
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│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi│
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╞══════════════════════════════════════════════════════════════════════════════╡
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│ Copyright 2020 Justine Alexandra Roberts Tunney │
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│ │
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│ Permission to use, copy, modify, and/or distribute this software for │
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│ any purpose with or without fee is hereby granted, provided that the │
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│ above copyright notice and this permission notice appear in all copies. │
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│ │
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│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
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│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
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│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
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│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
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│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
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│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
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│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
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│ PERFORMANCE OF THIS SOFTWARE. │
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╚─────────────────────────────────────────────────────────────────────────────*/
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#include "libc/calls/calls.h"
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#include "libc/calls/struct/stat.h"
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#include "libc/calls/struct/timespec.h"
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#include "libc/dce.h"
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#include "libc/errno.h"
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#include "libc/intrin/asan.internal.h"
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#include "libc/intrin/bits.h"
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#include "libc/intrin/cxaatexit.internal.h"
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#include "libc/intrin/safemacros.internal.h"
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#include "libc/macros.internal.h"
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#include "libc/mem/gc.h"
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#include "libc/mem/gc.internal.h"
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#include "libc/mem/mem.h"
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#include "libc/runtime/internal.h"
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#include "libc/runtime/memtrack.internal.h"
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#include "libc/runtime/runtime.h"
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#include "libc/runtime/sysconf.h"
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#include "libc/stdio/rand.h"
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#include "libc/stdio/stdio.h"
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#include "libc/str/str.h"
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#include "libc/sysv/consts/map.h"
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#include "libc/sysv/consts/o.h"
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#include "libc/sysv/consts/prot.h"
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#include "libc/testlib/ezbench.h"
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#include "libc/testlib/subprocess.h"
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#include "libc/testlib/testlib.h"
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#include "libc/thread/thread.h"
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#include "libc/time/time.h"
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#define N 1024
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#define M 20
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void SetUp(void) {
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// TODO(jart): what is wrong?
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if (IsWindows()) exit(0);
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}
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TEST(malloc, zero) {
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char *p;
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ASSERT_NE(NULL, (p = malloc(0)));
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if (IsAsan()) ASSERT_FALSE(__asan_is_valid(p, 1));
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free(p);
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}
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TEST(realloc, bothAreZero_createsMinimalAllocation) {
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char *p;
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ASSERT_NE(NULL, (p = realloc(0, 0)));
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if (IsAsan()) ASSERT_FALSE(__asan_is_valid(p, 1));
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free(p);
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}
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TEST(realloc, ptrIsZero_createsAllocation) {
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char *p;
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ASSERT_NE(NULL, (p = realloc(0, 1)));
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if (IsAsan()) ASSERT_TRUE(__asan_is_valid(p, 1));
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if (IsAsan()) ASSERT_FALSE(__asan_is_valid(p + 1, 1));
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ASSERT_EQ(p, realloc(p, 0));
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if (IsAsan()) ASSERT_FALSE(__asan_is_valid(p, 1));
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if (IsAsan()) ASSERT_FALSE(__asan_is_valid(p + 1, 1));
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free(p);
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}
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TEST(realloc, sizeIsZero_shrinksAllocation) {
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char *p;
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ASSERT_NE(NULL, (p = malloc(1)));
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if (IsAsan()) ASSERT_TRUE(__asan_is_valid(p, 1));
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if (IsAsan()) ASSERT_FALSE(__asan_is_valid(p + 1, 1));
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ASSERT_EQ(p, realloc(p, 0));
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if (IsAsan()) ASSERT_FALSE(__asan_is_valid(p, 1));
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if (IsAsan()) ASSERT_FALSE(__asan_is_valid(p + 1, 1));
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free(p);
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}
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TEST(realloc_in_place, test) {
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char *x = malloc(16);
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EXPECT_EQ(x, realloc_in_place(x, 0));
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EXPECT_EQ(x, realloc_in_place(x, 1));
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*x = 2;
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free(x);
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}
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BENCH(realloc_in_place, bench) {
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volatile int i = 1000;
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volatile char *x = malloc(i);
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EZBENCH2("malloc", donothing, free(malloc(i)));
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EZBENCH2("memalign", donothing, free(memalign(16, i)));
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EZBENCH2("memalign", donothing, free(memalign(32, i)));
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EZBENCH2("realloc", donothing, x = realloc(x, --i));
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EZBENCH2("realloc_in_place", donothing, realloc_in_place(x, --i));
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free(x);
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}
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void AppendStuff(char **p, size_t *n) {
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char buf[512];
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ASSERT_NE(NULL, (*p = realloc(*p, (*n += 512))));
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rngset(buf, sizeof(buf), 0, 0);
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memcpy(*p + *n - sizeof(buf), buf, sizeof(buf));
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}
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TEST(malloc, test) {
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char *big = 0;
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size_t n, bigsize = 0;
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static struct stat st;
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static volatile int i, j, k, *A[4096], fds[M], *maps[M], mapsizes[M];
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memset(fds, -1, sizeof(fds));
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memset(maps, -1, sizeof(maps));
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for (i = 0; i < N * M; ++i) {
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/* AppendStuff(&big, &bigsize); */
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j = rand() % ARRAYLEN(A);
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if (A[j]) {
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ASSERT_EQ(j, A[j][0]);
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n = rand() % N;
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n = MAX(n, 1);
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n = ROUNDUP(n, sizeof(int));
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A[j] = realloc(A[j], n);
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ASSERT_NE(NULL, A[j]);
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ASSERT_EQ(j, A[j][0]);
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free(A[j]);
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A[j] = NULL;
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} else {
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n = rand() % N;
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n = MAX(n, 1);
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n = ROUNDUP(n, sizeof(int));
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A[j] = malloc(n);
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ASSERT_NE(NULL, A[j]);
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A[j][0] = j;
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}
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if (!(i % M)) {
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k = rand() % M;
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if (fds[k] == -1) {
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ASSERT_NE(-1, (fds[k] = open(program_invocation_name, O_RDONLY)));
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ASSERT_NE(-1, fstat(fds[k], &st));
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mapsizes[k] = st.st_size;
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ASSERT_NE(MAP_FAILED, (maps[k] = mmap(NULL, mapsizes[k], PROT_READ,
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MAP_SHARED, fds[k], 0)));
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} else {
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ASSERT_NE(-1, munmap(maps[k], mapsizes[k]));
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ASSERT_NE(-1, close(fds[k]));
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fds[k] = -1;
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}
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}
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}
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free(big);
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for (i = 0; i < ARRAYLEN(A); ++i) free(A[i]);
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for (i = 0; i < ARRAYLEN(maps); ++i) munmap(maps[i], mapsizes[i]);
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for (i = 0; i < ARRAYLEN(fds); ++i) close(fds[i]);
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}
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TEST(memalign, roundsUpAlignmentToTwoPower) {
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char *volatile p = memalign(129, 1);
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ASSERT_EQ(0, (intptr_t)p & 255);
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free(p);
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}
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void *bulk[1024];
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void BulkFreeBenchSetup(void) {
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size_t i;
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for (i = 0; i < ARRAYLEN(bulk); ++i) {
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bulk[i] = malloc(rand() % 64);
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}
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}
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void FreeBulk(void) {
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size_t i;
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for (i = 0; i < ARRAYLEN(bulk); ++i) {
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free(bulk[i]);
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}
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}
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void MallocFree(void) {
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char *volatile p;
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p = malloc(16);
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free(p);
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}
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BENCH(bulk_free, bench) {
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EZBENCH2("free() bulk", BulkFreeBenchSetup(), FreeBulk());
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EZBENCH2("bulk_free()", BulkFreeBenchSetup(),
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bulk_free(bulk, ARRAYLEN(bulk)));
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EZBENCH2("free(malloc(16)) ST", donothing, MallocFree());
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__enable_threads();
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EZBENCH2("free(malloc(16)) MT", donothing, MallocFree());
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}
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#define ITERATIONS 10000
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void *Worker(void *arg) {
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for (int i = 0; i < ITERATIONS; ++i) {
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char *p;
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ASSERT_NE(NULL, (p = malloc(lemur64() % 128)));
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ASSERT_NE(NULL, (p = realloc(p, max(lemur64() % 128, 1))));
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free(p);
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}
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return 0;
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}
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BENCH(malloc, torture) {
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int i, n = _getcpucount() * 2;
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pthread_t *t = _gc(malloc(sizeof(pthread_t) * n));
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if (!n) return;
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printf("\nmalloc torture test w/ %d threads and %d iterations\n", n,
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ITERATIONS);
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SPAWN(fork);
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struct timespec t1 = timespec_real();
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for (i = 0; i < n; ++i) {
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ASSERT_EQ(0, pthread_create(t + i, 0, Worker, 0));
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}
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for (i = 0; i < n; ++i) {
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ASSERT_EQ(0, pthread_join(t[i], 0));
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}
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struct timespec t2 = timespec_real();
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printf("consumed %g wall and %g cpu seconds\n",
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timespec_tomicros(timespec_sub(t2, t1)) * 1e-6,
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(double)clock() / CLOCKS_PER_SEC);
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EXITS(0);
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}
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