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Cleanup socket code

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This commit is contained in:
Justine Tunney 2021-02-05 23:45:34 -08:00
parent a91ba89d85
commit e06c90fafc
13 changed files with 108 additions and 94 deletions
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13
libc/calls/close-nt.c
View file

@ -22,20 +22,19 @@
#include "libc/nt/runtime.h"
#include "libc/sysv/errfuns.h"
textwindows int sys_close_nt(int fd) {
textwindows int sys_close_nt(struct Fd *fd) {
bool32 ok;
if (g_fds.p[fd].kind == kFdFile &&
GetFileType(g_fds.p[fd].handle) == kNtFileTypeDisk) {
if (fd->kind == kFdFile && GetFileType(fd->handle) == kNtFileTypeDisk) {
/*
* Like Linux, closing a file on Windows doesn't guarantee it's
* immediately synced to disk. But unlike Linux, this could cause
* subsequent operations, e.g. unlink() to break w/ access error.
*/
FlushFileBuffers(g_fds.p[fd].handle);
FlushFileBuffers(fd->handle);
}
ok = CloseHandle(g_fds.p[fd].handle);
if (g_fds.p[fd].kind == kFdConsole) {
ok &= CloseHandle(g_fds.p[fd].extra);
ok = CloseHandle(fd->handle);
if (fd->kind == kFdConsole) {
ok &= CloseHandle(fd->extra);
}
return ok ? 0 : __winerr();
}

4
libc/calls/close.c
View file

@ -44,11 +44,11 @@ int close(int fd) {
} else if (!IsWindows()) {
rc = sys_close(fd);
} else if (fd < g_fds.n && g_fds.p[fd].kind == kFdSocket) {
rc = weaken(sys_closesocket_nt)(fd);
rc = weaken(sys_closesocket_nt)(g_fds.p + fd);
} else if (fd < g_fds.n &&
(g_fds.p[fd].kind == kFdFile || g_fds.p[fd].kind == kFdConsole ||
g_fds.p[fd].kind == kFdProcess)) {
rc = sys_close_nt(fd);
rc = sys_close_nt(g_fds.p + fd);
} else {
rc = ebadf();
}

17
libc/calls/internal.h
View file

@ -1,17 +1,21 @@
#ifndef COSMOPOLITAN_LIBC_CALLS_INTERNAL_H_
#define COSMOPOLITAN_LIBC_CALLS_INTERNAL_H_
#include "libc/calls/calls.h"
#include "libc/calls/internal.h"
#include "libc/calls/struct/iovec.h"
#include "libc/calls/struct/itimerval.h"
#include "libc/calls/struct/sigaction-xnu.internal.h"
#include "libc/calls/struct/timespec.h"
#include "libc/calls/struct/timeval.h"
#include "libc/dce.h"
#include "libc/limits.h"
#include "libc/macros.h"
#include "libc/nt/struct/context.h"
#include "libc/nt/struct/ntexceptionpointers.h"
#include "libc/nt/struct/securityattributes.h"
#include "libc/nt/struct/startupinfo.h"
#include "libc/nt/struct/systeminfo.h"
#include "libc/nt/struct/win32fileattributedata.h"
#include "libc/runtime/runtime.h"
#include "libc/time/struct/timezone.h"
#include "libc/time/struct/utimbuf.h"
@ -23,12 +27,6 @@ COSMOPOLITAN_C_START_
#define kIoMotion ((const int8_t[3]){1, 0, 0})
struct NtContext;
struct NtWin32FileAttributeData;
struct ZiposHandle;
struct __darwin_siginfo;
struct __darwin_ucontext;
struct IoctlPtmGet {
int theduxfd;
int workerfd;
@ -56,8 +54,8 @@ struct Fd {
};
struct Fds {
size_t f; // lowest free slot
size_t n; // monotonic capacity
size_t f; /* lowest free slot */
size_t n; /* monotonic capacity */
struct Fd *p;
struct Fd __init_p[OPEN_MAX];
};
@ -75,7 +73,6 @@ hidden extern const struct NtSecurityAttributes kNtIsInheritable;
int __reservefd(void) hidden;
void __releasefd(int) hidden;
int __ensurefds(int) hidden;
void __removefd(int) hidden;
forceinline bool __isfdopen(int fd) {
return 0 <= fd && fd < g_fds.n && g_fds.p[fd].kind != kFdEmpty;
@ -231,7 +228,7 @@ bool32 sys_isatty_nt(int) hidden;
char *sys_getcwd_nt(char *, size_t) hidden;
i64 sys_lseek_nt(int, i64, int) hidden;
int sys_chdir_nt(const char *) hidden;
int sys_close_nt(int) hidden;
int sys_close_nt(struct Fd *) hidden;
int sys_dup_nt(int, int, int) hidden;
int sys_execve_nt(const char *, char *const[], char *const[]) hidden;
int sys_faccessat_nt(int, const char *, int, uint32_t) hidden;

27
libc/calls/removefd.c
View file

@ -1,27 +0,0 @@
/*-*- 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 2020 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/internal.h"
#include "libc/macros.h"
void __removefd(int fd) {
if (__isfdopen(fd)) {
g_fds.p[fd].kind = kFdEmpty;
g_fds.f = MIN(g_fds.f, fd);
}
}