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Fix bugs with recent change

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This change makes further effort towards improving our poll()
implementation on the New Technology. The stdin worker didn't work out
so well for Python so it's not being used for now. System call tracing
with the --strace flag should now be less noisy now on Windows unless
you modify the strace.internal.h defines to turn on some optional ones
that are most useful for debugging the system call wrappers.
This commit is contained in:
Justine Tunney 2022-04-16 10:40:23 -07:00
parent 933411ba99
commit dc0ea6640e
127 changed files with 1354 additions and 866 deletions
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47
test/libc/calls/read_test.c Normal file
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/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi│
╞══════════════════════════════════════════════════════════════════════════════╡
│ Copyright 2021 Justine Alexandra Roberts Tunney │
│ │
│ Permission to use, copy, modify, and/or distribute this software for │
│ any purpose with or without fee is hereby granted, provided that the │
│ above copyright notice and this permission notice appear in all copies. │
│ │
│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
│ PERFORMANCE OF THIS SOFTWARE. │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/calls/calls.h"
#include "libc/calls/internal.h"
#include "libc/calls/struct/iovec.h"
#include "libc/sock/internal.h"
#include "libc/sysv/consts/nr.h"
#include "libc/sysv/consts/o.h"
#include "libc/testlib/ezbench.h"
#include "libc/testlib/testlib.h"
static long Read(long fd, void *buf, unsigned long size) {
long ax, di, si, dx;
asm volatile("syscall"
: "=a"(ax), "=D"(di), "=S"(si), "=d"(dx)
: "0"(__NR_read), "1"(fd), "2"(buf), "3"(size)
: "rcx", "r8", "r9", "r10", "r11", "memory", "cc");
return ax;
}
BENCH(read, bench) {
char buf[16];
ASSERT_SYS(0, 3, open("/dev/zero", O_RDONLY));
EZBENCH2("read", donothing, read(3, buf, 5));
EZBENCH2("readv", donothing, readv(3, &(struct iovec){buf, 5}, 1));
EZBENCH2("sys_read", donothing, sys_read(3, buf, 5));
EZBENCH2("sys_readv", donothing, sys_readv(3, &(struct iovec){buf, 5}, 1));
EZBENCH2("Read", donothing, Read(3, buf, 5));
EZBENCH2("Read", donothing, Read(3, buf, 5));
ASSERT_SYS(0, 0, close(3));
}