mirror of
https://github.com/jart/cosmopolitan.git
synced 2025-05-28 08:12:28 +00:00
Reduce number of disk seeks in redbean
This commit is contained in:
Justine Tunney
parent
daa32d27d4
commit
01e6b3ad8d
8 changed files with 212 additions and 173 deletions
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@ -52,6 +52,8 @@
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*
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* Be sure to check for EINTR on your i/o calls, for best low latency.
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*
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* Timers are not inherited across fork.
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*
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* @param which can be ITIMER_REAL, ITIMER_VIRTUAL, etc.
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* @param newvalue specifies the interval ({0,0} means one-shot) and
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* duration ({0,0} means disarm) in microseconds ∈ [0,999999] and
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164
libc/fmt/kerrornames.S
Normal file
164
libc/fmt/kerrornames.S
Normal file
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@ -0,0 +1,164 @@
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/*-*- mode:unix-assembly; indent-tabs-mode:t; tab-width:8; coding:utf-8 -*-│
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│vi: set et ft=asm ts=8 tw=8 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/macros.internal.h"
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.macro .e e
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.long \e - kErrorNames
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.long 1f - kErrorNames
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.section .rodata.str1.1
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1: .string "\e"
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.previous
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.endm
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.section .rodata
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.align 4
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kErrorNames:
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.e ENOSYS
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.e EPERM
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.e ENOENT
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.e ESRCH
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.e EINTR
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.e EIO
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.e ENXIO
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.e E2BIG
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.e ENOEXEC
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.e EBADF
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.e ECHILD
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.e EAGAIN
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.e ENOMEM
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.e EACCES
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.e EFAULT
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.e ENOTBLK
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.e EBUSY
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.e EEXIST
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.e EXDEV
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.e ENODEV
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.e ENOTDIR
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.e EISDIR
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.e EINVAL
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.e ENFILE
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.e EMFILE
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.e ENOTTY
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.e ETXTBSY
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.e EFBIG
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.e ENOSPC
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.e EDQUOT
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.e ESPIPE
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.e EROFS
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.e EMLINK
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.e EPIPE
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.e EDOM
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.e ERANGE
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.e EDEADLK
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.e ENAMETOOLONG
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.e ENOLCK
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.e ENOTEMPTY
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.e ELOOP
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.e ENOMSG
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.e EIDRM
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.e ETIME
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.e EPROTO
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.e EOVERFLOW
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.e EILSEQ
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.e EUSERS
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.e ENOTSOCK
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.e EDESTADDRREQ
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.e EMSGSIZE
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.e EPROTOTYPE
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.e ENOPROTOOPT
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.e EPROTONOSUPPORT
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.e ESOCKTNOSUPPORT
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.e ENOTSUP
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.e EOPNOTSUPP
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.e EPFNOSUPPORT
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.e EAFNOSUPPORT
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.e EADDRINUSE
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.e EADDRNOTAVAIL
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.e ENETDOWN
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.e ENETUNREACH
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.e ENETRESET
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.e ECONNABORTED
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.e ECONNRESET
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.e ENOBUFS
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.e EISCONN
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.e ENOTCONN
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.e ESHUTDOWN
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.e ETOOMANYREFS
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.e ETIMEDOUT
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.e ECONNREFUSED
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.e EHOSTDOWN
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.e EHOSTUNREACH
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.e EALREADY
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.e EINPROGRESS
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.e ESTALE
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.e EREMOTE
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.e EBADMSG
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.e ECANCELED
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.e EOWNERDEAD
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.e ENOTRECOVERABLE
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.e ENONET
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.e ERESTART
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.e ECHRNG
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.e EL2NSYNC
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.e EL3HLT
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.e EL3RST
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.e ELNRNG
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.e EUNATCH
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.e ENOCSI
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.e EL2HLT
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.e EBADE
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.e EBADR
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.e EXFULL
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.e ENOANO
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.e EBADRQC
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.e EBADSLT
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.e ENOSTR
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.e ENODATA
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.e ENOSR
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.e ENOPKG
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.e ENOLINK
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.e EADV
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.e ESRMNT
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.e ECOMM
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.e EMULTIHOP
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.e EDOTDOT
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.e ENOTUNIQ
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.e EBADFD
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.e EREMCHG
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.e ELIBACC
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.e ELIBBAD
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.e ELIBSCN
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.e ELIBMAX
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.e ELIBEXEC
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.e ESTRPIPE
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.e EUCLEAN
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.e ENOTNAM
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.e ENAVAIL
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.e EISNAM
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.e EREMOTEIO
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.e ENOMEDIUM
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.e EMEDIUMTYPE
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.e ENOKEY
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.e EKEYEXPIRED
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.e EKEYREVOKED
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.e EKEYREJECTED
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.e ERFKILL
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.e EHWPOISON
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.long 0
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.endobj kErrorNames,globl,hidden
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@ -27,149 +27,17 @@
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#include "libc/nt/runtime.h"
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#include "libc/str/str.h"
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const struct Error {
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const long *x;
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const char *s;
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} kErrors[] = {
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{&ENOSYS, "ENOSYS"},
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{&EPERM, "EPERM"},
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{&ENOENT, "ENOENT"},
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{&ESRCH, "ESRCH"},
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{&EINTR, "EINTR"},
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{&EIO, "EIO"},
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{&ENXIO, "ENXIO"},
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{&E2BIG, "E2BIG"},
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{&ENOEXEC, "ENOEXEC"},
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{&EBADF, "EBADF"},
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{&ECHILD, "ECHILD"},
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{&EAGAIN, "EAGAIN"},
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{&ENOMEM, "ENOMEM"},
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{&EACCES, "EACCES"},
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{&EFAULT, "EFAULT"},
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{&ENOTBLK, "ENOTBLK"},
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{&EBUSY, "EBUSY"},
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{&EEXIST, "EEXIST"},
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{&EXDEV, "EXDEV"},
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{&ENODEV, "ENODEV"},
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{&ENOTDIR, "ENOTDIR"},
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{&EISDIR, "EISDIR"},
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{&EINVAL, "EINVAL"},
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{&ENFILE, "ENFILE"},
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{&EMFILE, "EMFILE"},
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{&ENOTTY, "ENOTTY"},
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{&ETXTBSY, "ETXTBSY"},
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{&EFBIG, "EFBIG"},
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{&ENOSPC, "ENOSPC"},
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{&EDQUOT, "EDQUOT"},
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{&ESPIPE, "ESPIPE"},
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{&EROFS, "EROFS"},
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{&EMLINK, "EMLINK"},
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{&EPIPE, "EPIPE"},
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{&EDOM, "EDOM"},
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{&ERANGE, "ERANGE"},
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{&EDEADLK, "EDEADLK"},
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{&ENAMETOOLONG, "ENAMETOOLONG"},
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{&ENOLCK, "ENOLCK"},
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{&ENOTEMPTY, "ENOTEMPTY"},
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{&ELOOP, "ELOOP"},
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{&ENOMSG, "ENOMSG"},
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{&EIDRM, "EIDRM"},
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{&ETIME, "ETIME"},
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{&EPROTO, "EPROTO"},
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{&EOVERFLOW, "EOVERFLOW"},
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{&EILSEQ, "EILSEQ"},
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{&EUSERS, "EUSERS"},
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{&ENOTSOCK, "ENOTSOCK"},
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{&EDESTADDRREQ, "EDESTADDRREQ"},
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{&EMSGSIZE, "EMSGSIZE"},
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{&EPROTOTYPE, "EPROTOTYPE"},
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{&ENOPROTOOPT, "ENOPROTOOPT"},
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{&EPROTONOSUPPORT, "EPROTONOSUPPORT"},
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{&ESOCKTNOSUPPORT, "ESOCKTNOSUPPORT"},
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{&ENOTSUP, "ENOTSUP"},
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{&EOPNOTSUPP, "EOPNOTSUPP"},
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{&EPFNOSUPPORT, "EPFNOSUPPORT"},
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{&EAFNOSUPPORT, "EAFNOSUPPORT"},
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{&EADDRINUSE, "EADDRINUSE"},
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{&EADDRNOTAVAIL, "EADDRNOTAVAIL"},
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{&ENETDOWN, "ENETDOWN"},
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{&ENETUNREACH, "ENETUNREACH"},
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{&ENETRESET, "ENETRESET"},
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{&ECONNABORTED, "ECONNABORTED"},
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{&ECONNRESET, "ECONNRESET"},
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{&ENOBUFS, "ENOBUFS"},
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{&EISCONN, "EISCONN"},
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{&ENOTCONN, "ENOTCONN"},
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{&ESHUTDOWN, "ESHUTDOWN"},
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{&ETOOMANYREFS, "ETOOMANYREFS"},
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{&ETIMEDOUT, "ETIMEDOUT"},
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{&ECONNREFUSED, "ECONNREFUSED"},
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{&EHOSTDOWN, "EHOSTDOWN"},
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{&EHOSTUNREACH, "EHOSTUNREACH"},
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{&EALREADY, "EALREADY"},
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{&EINPROGRESS, "EINPROGRESS"},
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{&ESTALE, "ESTALE"},
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{&EREMOTE, "EREMOTE"},
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{&EBADMSG, "EBADMSG"},
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{&ECANCELED, "ECANCELED"},
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{&EOWNERDEAD, "EOWNERDEAD"},
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{&ENOTRECOVERABLE, "ENOTRECOVERABLE"},
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{&ENONET, "ENONET"},
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{&ERESTART, "ERESTART"},
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{&ECHRNG, "ECHRNG"},
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{&EL2NSYNC, "EL2NSYNC"},
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{&EL3HLT, "EL3HLT"},
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{&EL3RST, "EL3RST"},
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{&ELNRNG, "ELNRNG"},
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{&EUNATCH, "EUNATCH"},
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{&ENOCSI, "ENOCSI"},
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{&EL2HLT, "EL2HLT"},
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{&EBADE, "EBADE"},
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{&EBADR, "EBADR"},
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{&EXFULL, "EXFULL"},
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{&ENOANO, "ENOANO"},
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{&EBADRQC, "EBADRQC"},
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{&EBADSLT, "EBADSLT"},
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{&ENOSTR, "ENOSTR"},
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{&ENODATA, "ENODATA"},
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{&ENOSR, "ENOSR"},
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{&ENOPKG, "ENOPKG"},
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{&ENOLINK, "ENOLINK"},
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{&EADV, "EADV"},
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{&ESRMNT, "ESRMNT"},
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{&ECOMM, "ECOMM"},
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{&EMULTIHOP, "EMULTIHOP"},
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{&EDOTDOT, "EDOTDOT"},
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{&ENOTUNIQ, "ENOTUNIQ"},
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{&EBADFD, "EBADFD"},
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{&EREMCHG, "EREMCHG"},
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{&ELIBACC, "ELIBACC"},
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{&ELIBBAD, "ELIBBAD"},
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{&ELIBSCN, "ELIBSCN"},
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{&ELIBMAX, "ELIBMAX"},
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{&ELIBEXEC, "ELIBEXEC"},
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{&ESTRPIPE, "ESTRPIPE"},
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{&EUCLEAN, "EUCLEAN"},
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{&ENOTNAM, "ENOTNAM"},
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{&ENAVAIL, "ENAVAIL"},
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{&EISNAM, "EISNAM"},
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{&EREMOTEIO, "EREMOTEIO"},
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{&ENOMEDIUM, "ENOMEDIUM"},
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{&EMEDIUMTYPE, "EMEDIUMTYPE"},
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{&ENOKEY, "ENOKEY"},
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{&EKEYEXPIRED, "EKEYEXPIRED"},
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{&EKEYREVOKED, "EKEYREVOKED"},
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{&EKEYREJECTED, "EKEYREJECTED"},
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{&ERFKILL, "ERFKILL"},
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{&EHWPOISON, "EHWPOISON"},
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};
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extern const struct Error {
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int x;
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int s;
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} kErrorNames[];
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static const char *geterrname(long x) {
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static const char *GetErrorName(long x) {
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int i;
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if (x) {
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for (i = 0; i < ARRAYLEN(kErrors); ++i) {
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if (x == *kErrors[i].x) {
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return kErrors[i].s;
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for (i = 0; kErrorNames[i].x; ++i) {
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if (x == *(const long *)((uintptr_t)kErrorNames + kErrorNames[i].x)) {
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return (const char *)((uintptr_t)kErrorNames + kErrorNames[i].s);
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}
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}
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}
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@ -184,7 +52,7 @@ int strerror_r(int err, char *buf, size_t size) {
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char *p;
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const char *s;
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err &= 0xFFFF;
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s = geterrname(err);
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s = GetErrorName(err);
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p = buf;
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if (strlen(s) + 1 + 5 + 1 + 1 <= size) {
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p = stpcpy(p, s);
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@ -24,6 +24,7 @@ _peekall:
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.leafprologue
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ezlea _base,si
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ezlea _end,cx
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add $0x1000,%rsi
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0: mov (%rsi),%eax
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add $PAGESIZE,%rsi
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cmp %rcx,%rsi
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