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https://github.com/jart/cosmopolitan.git
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d76dfadc7a
fgets() is now 4x faster which makes Make 2% faster. Landlock Make now has a builtin $(uniq ...) function that uses critbit trees rather than functional programming. Since uniq is the most important function this optimization makes our cold start latency 15% faster.
50 lines
2.6 KiB
C
50 lines
2.6 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 2021 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/mem/mem.h"
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#include "libc/runtime/gc.internal.h"
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#include "libc/stdio/stdio.h"
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#include "libc/testlib/ezbench.h"
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#include "libc/testlib/hyperion.h"
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#include "libc/testlib/testlib.h"
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TEST(fgets, test) {
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FILE *f;
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char buf[29];
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f = fmemopen(gc(strdup(kHyperion)), kHyperionSize, "r+");
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ASSERT_STREQ("The fall of Hyperion - a Dre", fgets(buf, sizeof(buf), f));
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ASSERT_STREQ("am\n", fgets(buf, sizeof(buf), f));
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ASSERT_STREQ("John Keats\n", fgets(buf, sizeof(buf), f));
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fclose(f);
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}
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void Benchmark(void) {
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FILE *f;
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char *line;
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char buf[512];
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f = fmemopen(gc(strdup(kHyperion)), kHyperionSize, "r+");
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for (;;) {
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line = fgets(buf, sizeof(buf), f);
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if (!line) break;
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}
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fclose(f);
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}
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BENCH(fgets, bench) {
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EZBENCH2("fgets", donothing, Benchmark());
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}
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