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Perform fine-tuning of socketpair and pipe
- removed unneeded share parameter from pipe on nt - socktpair(type | SOCK_CLOEXEC) is now polyfilled - use textwindows for linker micro-optimization - apologies for auto clang-format diff noise :( - improve socketpair docstring See #122
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4e93750afd
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11 changed files with 172 additions and 133 deletions
47
libc/calls/createpipename.c
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47
libc/calls/createpipename.c
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@ -0,0 +1,47 @@
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/*-*- 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/alg/reverse.internal.h"
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#include "libc/calls/calls.h"
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#include "libc/nt/process.h"
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static const char kPipeNamePrefix[] = "\\\\?\\pipe\\cosmo\\";
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static textwindows size_t UintToChar16Array(char16_t *a, uint64_t i) {
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size_t j = 0;
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do {
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a[j++] = i % 10 + '0';
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i /= 10;
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} while (i > 0);
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a[j] = 0;
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reverse(a, j);
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return j;
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}
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textwindows char16_t *CreatePipeName(char16_t *a) {
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static long x;
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unsigned i;
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for (i = 0; kPipeNamePrefix[i]; ++i) a[i] = kPipeNamePrefix[i];
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i += UintToChar16Array(a + i, GetCurrentProcessId());
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a[i++] = u'-';
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i += UintToChar16Array(a + i, GetCurrentProcessId());
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a[i++] = u'-';
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i += UintToChar16Array(a + i, x++);
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a[i] = u'\0';
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return a;
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}
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@ -67,7 +67,6 @@ hidden extern int __vforked;
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hidden extern unsigned __sighandrvas[NSIG];
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hidden extern struct Fds g_fds;
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hidden extern const struct NtSecurityAttributes kNtIsInheritable;
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hidden extern const char kPipeNamePrefix[];
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int __reservefd(void) hidden;
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void __releasefd(int) hidden;
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@ -292,7 +291,6 @@ unsigned __wincrash_nt(struct NtExceptionPointers *);
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ssize_t sys_readv_nt(struct Fd *, const struct iovec *, int) hidden;
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ssize_t sys_writev_nt(struct Fd *, const struct iovec *, int) hidden;
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char16_t *CreatePipeName(char16_t *) hidden;
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size_t UintToChar16Array(char16_t *, uint64_t) hidden;
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/*───────────────────────────────────────────────────────────────────────────│─╗
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│ cosmopolitan § syscalls » metal ─╬─│┼
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@ -16,42 +16,12 @@
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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/alg/reverse.internal.h"
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#include "libc/calls/internal.h"
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#include "libc/nt/createfile.h"
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#include "libc/nt/enum/accessmask.h"
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#include "libc/nt/enum/creationdisposition.h"
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#include "libc/nt/enum/filesharemode.h"
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#include "libc/nt/ipc.h"
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#include "libc/nt/process.h"
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#include "libc/nt/runtime.h"
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#include "libc/sysv/consts/o.h"
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const char kPipeNamePrefix[] = "\\\\?\\pipe\\cosmo\\";
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size_t UintToChar16Array(char16_t *a, uint64_t i) {
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size_t j = 0;
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do {
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a[j++] = i % 10 + '0';
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i /= 10;
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} while (i > 0);
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a[j] = 0;
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reverse(a, j);
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return j;
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}
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char16_t *CreatePipeName(char16_t *a) {
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static long x;
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unsigned i;
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for (i = 0; kPipeNamePrefix[i]; ++i) a[i] = kPipeNamePrefix[i];
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i += UintToChar16Array(a + i, GetCurrentProcessId());
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a[i++] = u'-';
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i += UintToChar16Array(a + i, GetCurrentProcessId());
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a[i++] = u'-';
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i += UintToChar16Array(a + i, x++);
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a[i] = u'\0';
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return a;
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}
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textwindows int sys_pipe_nt(int pipefd[2], unsigned flags) {
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int64_t hin, hout;
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if ((hin = CreateNamedPipe(pipename, kNtPipeAccessInbound,
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kNtPipeWait | kNtPipeReadmodeByte, 1, 65536, 65536,
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0, &kNtIsInheritable)) != -1) {
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if ((hout = CreateFile(pipename, kNtGenericWrite, kNtFileShareWrite,
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&kNtIsInheritable, kNtOpenExisting, 0, 0)) != -1) {
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if ((hout = CreateFile(pipename, kNtGenericWrite, 0, &kNtIsInheritable,
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kNtOpenExisting, 0, 0)) != -1) {
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g_fds.p[reader].kind = kFdFile;
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g_fds.p[reader].flags = flags;
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g_fds.p[reader].handle = hin;
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