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Add epoll and do more release readiness changes 

This change also pays off some of the remaining technical debt with
stdio, file descriptors, and memory managemnt polyfills.
main
Justine Tunney 2020-11-28 12:01:51 -08:00
parent a9ea949df8
commit 3e4fd4b0ad
271 changed files with 5706 additions and 1365 deletions
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2
Makefile
View File

@ -316,7 +316,7 @@ COSMOPOLITAN_HEADERS = \
o/$(MODE)/cosmopolitan.a: $(filter-out o/libc/stubs/exit11.o,$(foreach x,$(COSMOPOLITAN_OBJECTS),$($(x)_OBJS)))
o/cosmopolitan.h: \
o/$(MODE)/tool/build/rollup.com.dbg \
o/$(MODE)/tool/build/rollup.com \
libc/integral/normalize.inc \
$(foreach x,$(COSMOPOLITAN_HEADERS),$($(x)_HDRS))
@ACTION=ROLLUP TARGET=$@ build/do $^ >$@

205
ape/ape.S
View File

@ -34,7 +34,6 @@
│ αcτµαlly pδrταblε εxεcµταblε § program header │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "ape/config.h"
#include "ape/lib/apm.h"
#include "ape/lib/pc.h"
#include "ape/macros.h"
#include "ape/notice.inc"
@ -49,7 +48,7 @@
#define USE_SYMBOL_HACK 0
.source "NOTICE"
.source "LICENSE"
.source "ape/ape.S"
.source "ape/ape.lds"
.section .text,"ax",@progbits
@ -360,85 +359,9 @@ pcread: push %ax
xor %ax,%ax # try disk reset on error
int $0x13
pop %ax
jmp 1b
jmp pcread
.endfn pcread
/ Waits for serial lines to become idle.
/
/ @param di short array of serial ports (0 means not present)
/ @param si number of items in array
/ @mode long,legacy,real
sflush: mov %si,%cx
mov %di,%si
xor %dx,%dx
0: lodsb
mov %al,%dl
lodsb
mov %al,%dh
test %ax,%ax
jz 2f
add $UART_LSR,%dx
mov $UART_TTYIDL,%ah
1: in %dx,%al
and %ah,%al
rep
nop
jz 1b
loop 0b
2: ret
.endfn sflush,globl
/ Transmits byte over serial line.
/
/ This is both blocking and asynchronous.
/
/ @param di character to send
/ @param si serial port
/ @mode long,legacy,real
/ @see ttytxr
sputc: push %ax
push %cx
push %dx
mov %si,%dx
add $UART_LSR,%dx
mov $UART_TTYTXR,%ah
1: in %dx,%al
and %ah,%al
jnz 2f
rep
nop
jmp 1b
2: mov %di,%ax
mov %si,%dx
out %al,%dx
pop %dx
pop %cx
pop %ax
ret
.endfn sputc,globl
/ Shuts down personal computer.
/
/ @mode real
/ @noreturn
apmoff: mov $0x5300,%ax # apm installation check
xor %bx,%bx # for the apm bios itself
int $APM_SERVICE
jc 1f
cmp $'P<<8|'M,%bx # did apm bios service interrupt?
jne 1f
mov $0x5301,%ax # real mode interface connect
xor %bx,%bx # to apm bios device
int $APM_SERVICE # ignore errors e.g. already connected
xor %bx,%bx
xor %cx,%cx
mov $0x5307,%ax # set power state
mov $1,%bl # for all devices within my dominion
mov $3,%cl # to off
int $APM_SERVICE
1: call panic
.endfn apmoff,globl
/*───────────────────────────────────────────────────────────────────────────│─╗
│ αcτµαlly pδrταblε εxεcµταblε § partition table ─╬─│┼
╚────────────────────────────────────────────────────────────────────────────│*/
@ -1156,115 +1079,41 @@ sinit: mov %di,%dx
2: ret
.endfn sinit,global,hidden
/ Abnormally exits program.
/
/ @param di message
/ @mode real
/ @noreturn
rldie: call rlpute
call rloff
.endfn rldie,globl,hidden
/ Shuts down machine.
/
/ @mode real
/ @noreturn
rloff: mov $kBiosDataAreaXlm+COM1,%di
mov $4,%si
call sflush
call apmoff
.endfn rloff,globl,hidden
/ Prints error message.
/
/ @param di message
/ @mode real
rlpute: mov kBiosDataAreaXlm+METAL_STDERR(%bx),%si
test %si,%si
jnz 1f
mov kBiosDataAreaXlm+METAL_STDOUT,%si
1: xor %ax,%ax
push %ax
push %si
mov $REAL(.Lstr.crlf),%ax
push %ax
push %si
push %di
push %si
mov $REAL(.Lstr.error),%ax
push %ax
1: pop %di
test %di,%di
jz 2f
pop %si
call rlput2
jmp 1b
2: ret
.endfn rlpute,globl,hidden
/ Prints string to both video and serial.
/
/ @param di NUL-terminated string
/ @param si serial port
/ @mode real
rlput2: push %di
push %si
call rvputs
pop %si
pop %di
test %si,%si
jz 1f
call sputs
1: ret
.endfn rlput2,globl,hidden
/ Writes string to serial line.
/
/ @param di NUL-terminated string
/ @param si serial port
/ @mode long,legacy,real
sputs: push %bx
mov %di,%bx
1: xchg %bx,%si
lodsb
xchg %bx,%si
test %al,%al
jz 2f
mov %ax,%di
push %si
rlcall sputc
pop %si
jmp 1b
2: pop %bx
ret
.endfn sputs,globl
/ Video put string.
/
/ @param di is the string
/ @mode real
rvputs: mov %di,%si
rvputs: push %bp
push %bx
mov %di,%si
0: lodsb
test %al,%al
je 1f
rlcall rvputc
jmp 0b
1: ret
.endfn rvputs,globl,hidden
/ Video put char.
/
/ @param al is the char
/ @mode real
rvputc: push %bx # don't clobber bp,bx,di,si,cx
push %bp # original ibm pc scroll up bug
mov $7,%bx # normal mda/cga style page zero
mov $0x0e,%ah # teletype output al cp437
int $0x10 # vidya service
pop %bp # preserves al
pop %bx
jmp 0b
1: pop %bx
pop %bp
ret
.endfn rvputc
.endfn rvputs,globl,hidden
/ Abnormally halts startup.
/
/ @param di message
/ @mode real
/ @noreturn
rldie: push %di
mov $REAL(.Lstr.error),%di
call rvputs
pop %di
call rvputs
mov $REAL(.Lstr.crlf),%di
call rvputs
xor %ax,%ax # get keystroke
int $0x16 # keyboard service
jmp triplf
.endfn rldie,globl,hidden
/* █ █▒
█ █
@ -1321,6 +1170,7 @@ longmodeloader:
jc 9f
call unreal
/ call hiload
call pinit
jmp golong
9: mov $REAL(.Lstr.e820),%ax
call rldie
@ -1568,7 +1418,6 @@ pinit: push %ds
/ @see Intel Manual V3A §4.1.2
golong: cli
lidt XLM(BADIDT)
call pinit
mov %cr4,%eax
or $CR4_PAE|CR4_PGE|CR4_OSFXSR,%eax
mov %eax,%cr4

2
ape/lib/apelib.mk
View File

@ -21,7 +21,7 @@ APE_LIB_A_OBJS = \
$(APE_LIB_A_SRCS:%=o/$(MODE)/%.zip.o) \
o/$(MODE)/ape/ape.lds.zip.o \
o/$(MODE)/ape/ape.S.zip.o \
o/$(MODE)/NOTICE.zip.o
o/$(MODE)/LICENSE.zip.o
APE_LIB_A_CHECKS = $(APE_LIB_A_HDRS:%=o/$(MODE)/%.ok)
APE_LIB_A_DIRECTDEPS = LIBC_STR LIBC_STUBS

197
examples/hangman.c 100644
View File

@ -0,0 +1,197 @@
/* UNIX v7 usr/src/games/hangman.c
*
* Copyright 2002 Caldera International Inc.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* Redistributions of source code and documentation must retain the
* above copyright notice, this list of conditions and the following
* disclaimer. Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials provided with
* the distribution.
*
* All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
*
* This product includes software developed or owned by Caldera
* International, Inc.
*
* Neither the name of Caldera International, Inc. nor the names of
* other contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* USE OF THE SOFTWARE PROVIDED FOR UNDER THIS LICENCE BY CALDERA
* INTERNATIONAL, INC. AND CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL CALDERA INTERNATIONAL, BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "libc/calls/calls.h"
#include "libc/calls/struct/stat.h"
#include "libc/rand/rand.h"
#include "libc/runtime/runtime.h"
#include "libc/stdio/stdio.h"
#include "libc/str/str.h"
#include "libc/time/time.h"
#include "third_party/zlib/zlib.h"
/* clang-format off */
#define DICT "usr/share/dict/hangman"
#define MAXERR 7
#define MINSCORE 0
#define MINLEN 7
char *dictfile;
int alive,lost;
FILE *dict;
long int dictlen;
float errors=0, words=0;
char word[26],alph[26],realword[26];
void fatal(s)
char *s;
{
fprintf(stderr,"%s\n",s);
exit(1);
}
void setup()
{
long tvec;
struct stat statb;
time(&tvec);
srand(tvec);
if((dict=fopen(dictfile,"r"))==NULL) fatal("no dictionary");
if(stat(dictfile,&statb)<0) fatal("can't stat");
dictlen=statb.st_size;
}
double frand()
{
return(rand()/32768.);
}
void pscore()
{
if(words!=0) printf("(%4.2f/%.0f) ",errors/words,words);
}
void getword()
{ char wbuf[128],c;
int i,j;
loop:
if(fscanf(dict,"%s\n",wbuf)==EOF)
{ fseek(dict,0L,0);
goto loop;
}
if((c=wbuf[0])>'z' || c<'a') goto loop;
for(i=j=0;wbuf[j]!=0;i++,j++)
{ if(wbuf[j]=='-') j++;
wbuf[i]=wbuf[j];
}
wbuf[i]=0;
if(i<MINLEN) goto loop;
for(j=0;j<i;j++)
if((c=wbuf[j])<'a' || c>'z') goto loop;
pscore();
strcpy(realword,wbuf);
for(j=0;j<i;word[j++]='.');
}
void startnew()
{ int i;
long int pos;
char buf[128];
for(i=0;i<26;i++) word[i]=alph[i]=realword[i]=0;
pos=frand()*dictlen;
pos%=dictlen;
fseek(dict,pos,0);
fscanf(dict,"%s\n",buf);
getword();
alive=MAXERR;
lost=0;
}
void stateout()
{ int i;
printf("guesses: ");
for(i=0;i<26;i++)
if(alph[i]!=0) putchar(alph[i]);
printf(" word: %s ",word);
printf("errors: %d/%d\n",MAXERR-alive,MAXERR);
}
void getguess()
{ char gbuf[128],c;
int ok=0,i;
loop:
printf("guess: ");
if(gets(gbuf)==NULL)
{ putchar('\n');
exit(0);
}
if((c=gbuf[0])<'a' || c>'z')
{ printf("lower case\n");
goto loop;
}
if(alph[c-'a']!=0)
{ printf("you guessed that\n");
goto loop;
}
else alph[c-'a']=c;
for(i=0;realword[i]!=0;i++)
if(realword[i]==c)
{ word[i]=c;
ok=1;
}
if(ok==0)
{ alive--;
errors=errors+1;
if(alive<=0) lost=1;
return;
}
for(i=0;word[i]!=0;i++)
if(word[i]=='.') return;
alive=0;
lost=0;
return;
}
void wordout()
{
errors=errors+2;
printf("the answer was %s, you blew it\n",realword);
}
void youwon()
{
printf("you win, the word is %s\n",realword);
}
main(argc,argv)
char **argv;
{
if(argc==1) dictfile=DICT;
else dictfile=argv[1];
setup();
for(;;)
{ startnew();
while(alive>0)
{ stateout();
getguess();
}
words=words+1;
if(lost) wordout();
else youwon();
}
}

2
examples/nesemu1.cc
View File

@ -43,7 +43,7 @@
#include "libc/time/time.h"
#include "libc/x/x.h"
#include "libc/zip.h"
#include "libc/zipos/zipos.h"
#include "libc/zipos/zipos.internal.h"
#include "third_party/getopt/getopt.h"
#include "tool/viz/lib/knobs.h"

51
libc/bits/bits.h
View File

@ -277,27 +277,17 @@ unsigned long hamming(unsigned long, unsigned long) pureconst;
* @return true if value was exchanged, otherwise false
* @see lockcmpxchg()
*/
#define cmpxchg(IFTHING, ISEQUALTOME, REPLACEITWITHME) \
({ \
bool DidIt; \
asm(ZFLAG_ASM("cmpxchg\t%3,%1") \
: ZFLAG_CONSTRAINT(DidIt), "+m"(*(IFTHING)), "+a"(*(ISEQUALTOME)) \
: "r"((typeof(*(IFTHING)))(REPLACEITWITHME)) \
: "cc"); \
DidIt; \
})
#define ezcmpxchg(IFTHING, ISEQUALTOME, REPLACEITWITHME) \
({ \
bool DidIt; \
autotype(IFTHING) IfThing = (IFTHING); \
typeof(*IfThing) IsEqualToMe = (ISEQUALTOME); \
typeof(*IfThing) ReplaceItWithMe = (REPLACEITWITHME); \
asm(ZFLAG_ASM("cmpxchg\t%3,%1") \
: ZFLAG_CONSTRAINT(DidIt), "+m"(*IfThing), "+a"(IsEqualToMe) \
: "r"(ReplaceItWithMe) \
: "cc"); \
DidIt; \
#define cmpxchg(IFTHING, ISEQUALTOME, REPLACEITWITHME) \
({ \
bool DidIt; \
autotype(IFTHING) IfThing = (IFTHING); \
typeof(*IfThing) IsEqualToMe = (ISEQUALTOME); \
typeof(*IfThing) ReplaceItWithMe = (REPLACEITWITHME); \
asm volatile(ZFLAG_ASM("cmpxchg\t%3,%1") \
: ZFLAG_CONSTRAINT(DidIt), "+m"(*IfThing), "+a"(IsEqualToMe) \
: "r"(ReplaceItWithMe) \
: "cc"); \
DidIt; \
})
/**
@ -307,14 +297,17 @@ unsigned long hamming(unsigned long, unsigned long) pureconst;
* @return true if value was exchanged, otherwise false
* @see lockcmpxchg()
*/
#define lockcmpxchg(IFTHING, ISEQUALTOME, REPLACEITWITHME) \
({ \
bool DidIt; \
asm(ZFLAG_ASM("lock cmpxchg\t%3,%1") \
: ZFLAG_CONSTRAINT(DidIt), "+m"(*(IFTHING)), "+a"(*(ISEQUALTOME)) \
: "r"((typeof(*(IFTHING)))(REPLACEITWITHME)) \
: "cc"); \
DidIt; \
#define lockcmpxchg(IFTHING, ISEQUALTOME, REPLACEITWITHME) \
({ \
bool DidIt; \
autotype(IFTHING) IfThing = (IFTHING); \
typeof(*IfThing) IsEqualToMe = (ISEQUALTOME); \
typeof(*IfThing) ReplaceItWithMe = (REPLACEITWITHME); \
asm volatile(ZFLAG_ASM("lock cmpxchg\t%3,%1") \
: ZFLAG_CONSTRAINT(DidIt), "+m"(*IfThing), "+a"(IsEqualToMe) \
: "r"(ReplaceItWithMe) \
: "cc"); \
DidIt; \
})
/**

2
libc/calls/chdir-nt.c
View File

@ -33,6 +33,6 @@ textwindows int chdir$nt(const char *path) {
if (SetCurrentDirectory(path16)) {
return 0;
} else {
return winerr();
return __winerr();
}
}

6
libc/calls/close-nt.c
View File

@ -24,7 +24,7 @@
textwindows int close$nt(int fd) {
bool32 ok;
if (isfdopen(fd)) {
if (__isfdopen(fd)) {
if (g_fds.p[fd].kind == kFdFile) {
/*
* Like Linux, closing a file on Windows doesn't guarantee it's
@ -37,8 +37,8 @@ textwindows int close$nt(int fd) {
if (g_fds.p[fd].kind == kFdConsole) {
ok &= CloseHandle(g_fds.p[fd].extra);
}
removefd(fd);
return ok ? 0 : winerr();
__removefd(fd);
return ok ? 0 : __winerr();
} else {
return ebadf();
}

24
libc/calls/close.c
View File

@ -20,9 +20,10 @@
#include "libc/bits/weaken.h"
#include "libc/calls/calls.h"
#include "libc/calls/internal.h"
#include "libc/macros.h"
#include "libc/sock/internal.h"
#include "libc/sysv/errfuns.h"
#include "libc/zipos/zipos.h"
#include "libc/zipos/zipos.internal.h"
/**
* Closes file descriptor.
@ -32,17 +33,24 @@
*/
int close(int fd) {
int rc;
if (fd == -1) return einval();
if (isfdkind(fd, kFdZip)) {
rc = weaken(__zipos_close)(
(struct ZiposHandle *)(intptr_t)g_fds.p[fd].handle);
if (fd < 0) return einval();
if (fd < g_fds.n && g_fds.p[fd].kind == kFdZip) {
rc = weaken(__zipos_close)(fd);
} else if (fd < g_fds.n && g_fds.p[fd].kind == kFdEpoll) {
rc = weaken(close$epoll)(fd);
} else if (!IsWindows()) {
rc = close$sysv(fd);
} else if (isfdkind(fd, kFdSocket)) {
} else if (fd < g_fds.n && g_fds.p[fd].kind == kFdSocket) {
rc = weaken(closesocket$nt)(fd);
} else {
} else if (fd < g_fds.n &&
(g_fds.p[fd].kind == kFdFile || g_fds.p[fd].kind == kFdConsole)) {
rc = close$nt(fd);
} else {
rc = ebadf();
}
if (fd < g_fds.n) {
g_fds.p[fd].kind = kFdEmpty;
g_fds.f = MIN(g_fds.f, fd);
}
removefd(fd);
return rc;
}

14
libc/calls/dup-nt.c
View File

@ -30,17 +30,17 @@
* Implements dup(), dup2(), and dup3() for Windows NT.
*/
textwindows int dup$nt(int oldfd, int newfd, int flags) {
if (!isfdkind(oldfd, kFdFile)) return ebadf();
if (!__isfdkind(oldfd, kFdFile)) return ebadf();
if (newfd == -1) {
if ((newfd = createfd()) == -1) return -1;
} else if (isfdindex(newfd)) {
if ((newfd = __getemptyfd()) == -1) {
return -1;
}
} else if (__ensurefds(newfd) != -1) {
if (g_fds.p[newfd].kind != kFdEmpty) {
close(newfd);
}
} else {
do {
if (growfds() == -1) return -1;
} while (newfd >= g_fds.n);
return -1;
}
if (DuplicateHandle(GetCurrentProcess(), g_fds.p[oldfd].handle,
GetCurrentProcess(), &g_fds.p[newfd].handle, 0,
@ -49,6 +49,6 @@ textwindows int dup$nt(int oldfd, int newfd, int flags) {
g_fds.p[newfd].flags = flags;
return newfd;
} else {
return winerr();
return __winerr();
}
}

4
libc/calls/fadvise-nt.c
View File

@ -38,7 +38,7 @@ textwindows int fadvise$nt(int fd, uint64_t offset, uint64_t len, int advice) {
struct NtIoStatusBlock iostatus;
struct NtFileBasicInformation basicinfo;
struct NtFileAccessInformation accessinfo;
if (!isfdkind(fd, kFdFile)) return ebadf();
if (!__isfdkind(fd, kFdFile)) return ebadf();
sharemode = /* xxx: no clue how to query this */
kNtFileShareRead | kNtFileShareWrite | kNtFileShareDelete;
/* TODO(jart): can we do it in one call w/ NtQueryObject? */
@ -56,7 +56,7 @@ textwindows int fadvise$nt(int fd, uint64_t offset, uint64_t len, int advice) {
}
return 0;
}
return winerr();
return __winerr();
} else if (status == kNtStatusDllNotFound) {
return enosys();
} else {

4
libc/calls/fallocate.c
View File

@ -51,7 +51,7 @@ int fallocate(int fd, int32_t mode, int64_t offset, int64_t length) {
} else if (!IsWindows()) {
return posix_fallocate$sysv(fd, offset, length);
} else if (IsWindows()) {
if (!isfdkind(fd, kFdFile)) return ebadf();
if (!__isfdkind(fd, kFdFile)) return ebadf();
if (mode == FALLOC_FL_ZERO_RANGE) {
if (DeviceIoControl(
g_fds.p[fd].handle, kNtFsctlSetZeroData,
@ -59,7 +59,7 @@ int fallocate(int fd, int32_t mode, int64_t offset, int64_t length) {
sizeof(struct NtFileZeroDataInformation), NULL, 0, &br, NULL)) {
return 0;
} else {
return winerr();
return __winerr();
}
} else if (!mode && !offset) {
/*

25
libc/calls/fcntl-nt.c
View File

@ -21,20 +21,31 @@
#include "libc/nt/files.h"
#include "libc/sysv/consts/f.h"
#include "libc/sysv/consts/fd.h"
#include "libc/sysv/consts/o.h"
#include "libc/sysv/errfuns.h"
textwindows int fcntl$nt(int fd, int cmd, unsigned arg) {
uint32_t flags;
if (!isfdkind(fd, kFdFile)) return ebadf();
if (!__isfdkind(fd, kFdFile)) return ebadf();
switch (cmd) {
case F_GETFL:
return g_fds.p[fd].flags;
case F_SETFL:
return (g_fds.p[fd].flags = arg);
case F_GETFD:
if (!GetHandleInformation(g_fds.p[fd].handle, &flags)) return -1;
arg = (flags & FD_CLOEXEC) ^ FD_CLOEXEC;
return arg;
if (g_fds.p[fd].flags & O_CLOEXEC) {
return FD_CLOEXEC;
} else {
return 0;
}
case F_SETFD:
arg ^= FD_CLOEXEC;
if (!SetHandleInformation(g_fds.p[fd].handle, FD_CLOEXEC, arg)) return -1;
return 0;
if (arg & O_CLOEXEC) {
g_fds.p[fd].flags |= O_CLOEXEC;
return FD_CLOEXEC;
} else {
g_fds.p[fd].flags &= ~O_CLOEXEC;
return 0;
}
default:
return 0; /* TODO(jart): Implement me. */
}

4
libc/calls/fdatasync-nt.c
View File

@ -22,11 +22,11 @@
#include "libc/sysv/errfuns.h"
textwindows int fdatasync$nt(int fd) {
if (!isfdkind(fd, kFdFile)) return ebadf();
if (!__isfdkind(fd, kFdFile)) return ebadf();
/*
* XXX: On Windows NT this might be more analagous to fflush() and
* Microsoft docs say to do manual block i/o for database-ish
* guarantees on disk persistence. Consider: Really good UPS.
*/
return FlushFileBuffers(g_fds.p[fd].handle) ? 0 : winerr();
return FlushFileBuffers(g_fds.p[fd].handle) ? 0 : __winerr();
}

2
libc/calls/fdkind.c
View File

@ -20,7 +20,7 @@
#include "libc/calls/internal.h"
enum FdKind fdkind(int fd) {
if (isfdindex(fd)) {
if (0 <= fd && fd <= g_fds.n) {
return g_fds.p[fd].kind;
} else {
return kFdEmpty;

4
libc/calls/flock-nt.c
View File

@ -29,7 +29,7 @@
textwindows int flock$nt(int fd, int op) {
struct NtOverlapped ov;
struct NtByHandleFileInformation info;
if (!isfdkind(fd, kFdFile)) return ebadf();
if (!__isfdkind(fd, kFdFile)) return ebadf();
memset(&ov, 0, sizeof(ov));
if (GetFileInformationByHandle(g_fds.p[fd].handle, &info) &&
((!(op & LOCK_UN) &&
@ -39,6 +39,6 @@ textwindows int flock$nt(int fd, int op) {
info.nFileSizeHigh, &ov)))) {
return 0;
} else {
return winerr();
return __winerr();
}
}

2
libc/calls/fstat-nt.c
View File

@ -66,6 +66,6 @@ textwindows int fstat$nt(int64_t handle, struct stat *st) {
st->st_blocks = roundup(actualsize, PAGESIZE) / 512;
return 0;
} else {
return winerr();
return __winerr();
}
}

6
libc/calls/fstat.c
View File

@ -22,20 +22,20 @@
#include "libc/calls/internal.h"
#include "libc/dce.h"
#include "libc/sysv/errfuns.h"
#include "libc/zipos/zipos.h"
#include "libc/zipos/zipos.internal.h"
/**
* Returns information about file, via open()'d descriptor.
* @asyncsignalsafe
*/
int fstat(int fd, struct stat *st) {
if (isfdkind(fd, kFdZip)) {
if (__isfdkind(fd, kFdZip)) {
return weaken(__zipos_fstat)(
(struct ZiposHandle *)(intptr_t)g_fds.p[fd].handle, st);
} else if (!IsWindows()) {
return fstat$sysv(fd, st);
} else {
if (!isfdkind(fd, kFdFile)) return ebadf();
if (!__isfdkind(fd, kFdFile)) return ebadf();
return fstat$nt(g_fds.p[fd].handle, st);
}
}

6
libc/calls/ftruncate-nt.c
View File

@ -25,14 +25,14 @@
textwindows int ftruncate$nt(int fd, uint64_t length) {
bool32 ok;
int64_t tell;
if (!isfdkind(fd, kFdFile)) return ebadf();
if (!__isfdkind(fd, kFdFile)) return ebadf();
tell = -1;
if (SetFilePointerEx(g_fds.p[fd].handle, 0, &tell, kNtFileCurrent)) {
ok = SetFilePointerEx(g_fds.p[fd].handle, length, NULL, kNtFileBegin) &&
SetEndOfFile(g_fds.p[fd].handle);
SetFilePointerEx(g_fds.p[fd].handle, tell, NULL, kNtFileBegin);
return ok ? 0 : winerr();
return ok ? 0 : __winerr();
} else {
return winerr();
return __winerr();
}
}

26
libc/calls/g_fds.c
View File

@ -33,12 +33,22 @@ void InitializeFileDescriptors(void) {
pushmov(&fds->f, 3ul);
pushmov(&fds->n, ARRAYLEN(fds->__init_p));
fds->p = fds->__init_p;
fds->__init_p[STDIN_FILENO].kind = pushpop(kFdFile);
fds->__init_p[STDOUT_FILENO].kind = pushpop(kFdFile);
fds->__init_p[STDERR_FILENO].kind = pushpop(kFdFile);
fds->__init_p[STDIN_FILENO].handle = GetStdHandle(pushpop(kNtStdInputHandle));
fds->__init_p[STDOUT_FILENO].handle =
GetStdHandle(pushpop(kNtStdOutputHandle));
fds->__init_p[STDERR_FILENO].handle =
GetStdHandle(pushpop(kNtStdErrorHandle));
if (!IsMetal()) {
fds->__init_p[STDIN_FILENO].kind = pushpop(kFdFile);
fds->__init_p[STDOUT_FILENO].kind = pushpop(kFdFile);
fds->__init_p[STDERR_FILENO].kind = pushpop(kFdFile);
fds->__init_p[STDIN_FILENO].handle =
GetStdHandle(pushpop(kNtStdInputHandle));
fds->__init_p[STDOUT_FILENO].handle =
GetStdHandle(pushpop(kNtStdOutputHandle));
fds->__init_p[STDERR_FILENO].handle =
GetStdHandle(pushpop(kNtStdErrorHandle));
} else {
fds->__init_p[STDIN_FILENO].kind = pushpop(kFdSerial);
fds->__init_p[STDOUT_FILENO].kind = pushpop(kFdSerial);
fds->__init_p[STDERR_FILENO].kind = pushpop(kFdSerial);
fds->__init_p[STDIN_FILENO].handle = 0x3F8;
fds->__init_p[STDOUT_FILENO].handle = 0x3F8;
fds->__init_p[STDERR_FILENO].handle = 0x3F8;
}
}

2
libc/calls/getcwd-nt.c
View File

@ -31,7 +31,7 @@ textwindows char *getcwd$nt(char *buf, size_t size) {
erange();
}
} else {
winerr();
__winerr();
}
return NULL;
}

2
libc/calls/getdomainname.c
View File

@ -45,7 +45,7 @@ int getdomainname(char *name, size_t len) {
} else {
nSize = ARRAYLEN(name16);
if (!GetComputerNameEx(kNtComputerNameDnsFullyQualified, name16, &nSize)) {
return winerr();
return __winerr();
}
tprecode16to8(name, MIN(MIN(ARRAYLEN(name16), nSize + 1), len), name16);
return 0;

13
libc/calls/createfd.c → libc/calls/getemptyfd.c
View File

@ -25,14 +25,11 @@
/**
* Finds open file descriptor slot.
*/
ssize_t createfd(void) {
size_t fd;
for (;;) {
while (g_fds.f < g_fds.n) {
if (g_fds.p[(fd = g_fds.f++)].kind == kFdEmpty) {
return fd;
}
ssize_t __getemptyfd(void) {
for (; g_fds.f < g_fds.n; ++g_fds.f) {
if (g_fds.p[g_fds.f].kind == kFdEmpty) {
return g_fds.f;
}
if (growfds() == -1) return -1;
}
return __ensurefds(g_fds.f);
}

2
libc/calls/gethostname.c
View File

@ -50,7 +50,7 @@ int gethostname(char *name, size_t len) {
} else {
nSize = ARRAYLEN(name16);
if (!GetComputerNameEx(kNtComputerNameDnsHostname, name16, &nSize)) {
return winerr();
return __winerr();
}
tprecode16to8(name, MIN(MIN(ARRAYLEN(name16), nSize + 1), len), name16);
return 0;

2
libc/calls/getpriority-nt.c
View File

@ -46,6 +46,6 @@ textwindows int getpriority$nt(int ignored) {
}
abort();
} else {
return winerr();
return __winerr();
}
}

2
libc/calls/getrusage-nt.c
View File

@ -40,6 +40,6 @@ textwindows int getrusage$nt(int who, struct rusage *usage) {
FileTimeToTimeVal(&usage->ru_stime, KernelFileTime);
return 0;
} else {
return winerr();
return __winerr();
}
}

10
libc/calls/growfds.c
View File

@ -23,18 +23,20 @@
#include "libc/mem/mem.h"
#include "libc/sysv/errfuns.h"
int growfds(void) {
int __ensurefds(int fd) {
size_t i, n;
struct Fd *p;
if (fd < g_fds.n) return fd;
if (weaken(realloc)) {
if ((p = weaken(realloc)(g_fds.p != g_fds.__init_p ? g_fds.p : NULL,
(n = (i = g_fds.n) << 1) * sizeof(*p)))) {
if ((p = weaken(realloc)(
g_fds.p != g_fds.__init_p ? g_fds.p : NULL,
(n = MAX(fd + 1, (i = g_fds.n) << 1)) * sizeof(*p)))) {
do {
p[i++].kind = kFdEmpty;
} while (i < n);
g_fds.p = p;
g_fds.n = n;
return 0;
return fd;
} else {
return enomem();
}

2
libc/calls/hefty/copyfile.c
View File

@ -55,7 +55,7 @@ static textwindows int copyfile$nt(const char *src, const char *dst,
}
return 0;
} else {
return winerr();
return __winerr();
}
}

4
libc/calls/hefty/dirstream.c
View File

@ -74,7 +74,7 @@ static textwindows noinline DIR *opendir$nt(const char *name) {
if ((res->fd = FindFirstFile(name16, &res->windata)) != -1) {
return res;
} else {
winerr();
__winerr();
free(res);
return NULL;
}
@ -220,7 +220,7 @@ int closedir(DIR *dir) {
if (!IsWindows()) {
rc = close(dir->fd);
} else {
rc = FindClose(dir->fd) ? 0 : winerr();
rc = FindClose(dir->fd) ? 0 : __winerr();
}
free(dir);
} else {

14
libc/calls/hefty/fork-nt.c
View File

@ -67,7 +67,7 @@ textwindows void WinMainForked(void) {
char16_t *p;
uint64_t size;
char16_t var[21 + 1 + 21 + 1];
uint32_t i, varlen, protect, access;
uint32_t i, varlen, protect, access, oldprot;
varlen = GetEnvironmentVariable(u"_FORK", var, ARRAYLEN(var));
if (!varlen || varlen >= ARRAYLEN(var)) return;
p = var;
@ -98,11 +98,13 @@ textwindows void WinMainForked(void) {
break;
}
if (_mmi.p[i].flags & MAP_PRIVATE) {
MapViewOfFileExNuma(
(_mmi.p[i].h = CreateFileMappingNuma(-1, NULL, protect, 0, size, NULL,
kNtNumaNoPreferredNode)),
access, 0, 0, size, addr, kNtNumaNoPreferredNode);
MapViewOfFileExNuma((_mmi.p[i].h = CreateFileMappingNuma(
-1, NULL, kNtPageExecuteReadwrite, 0, size, NULL,
kNtNumaNoPreferredNode)),
kNtFileMapRead | kNtFileMapWrite | kNtFileMapExecute,
0, 0, size, addr, kNtNumaNoPreferredNode);
ReadAll(h, addr, size);
VirtualProtect(addr, size, protect, &oldprot);
} else {
MapViewOfFileExNuma(_mmi.p[i].h, access, 0, 0, size, addr,
kNtNumaNoPreferredNode);
@ -148,7 +150,7 @@ textwindows int fork$nt(void) {
}
unsetenv("_FORK");
} else {
rc = winerr();
rc = __winerr();
}
} else {
rc = 0;

2
libc/calls/hefty/ntspawn.c
View File

@ -78,7 +78,7 @@ textwindows int ntspawn(
opt_out_lpProcessInformation)) {
rc = 0;
} else {
rc = winerr();
rc = __winerr();
}
} else {
rc = -1;

4
libc/calls/hefty/spawnve-nt.c
View File

@ -49,14 +49,14 @@ textwindows int spawnve$nt(unsigned flags, int stdiofds[3], const char *program,
sti.cb = sizeof(sti);
sti.dwFlags = kNtStartfUsestdhandles;
if ((pid = createfd()) == -1) return -1;
if ((pid = __getemptyfd()) == -1) return -1;
for (i = 0; i < 3; ++i) {
if (stdiofds[i] == -1) {
x = &h;
y = &sti.stdiofds[i];
if (kIoMotion[i]) xchg(&x, &y);
if ((tubes[i] = createfd()) != -1 &&
if ((tubes[i] = __getemptyfd()) != -1 &&
CreatePipe(x, y, &kNtIsInheritable, 0)) {
g_fds.p[tubes[i]].handle = h;
} else {

2
libc/calls/hefty/ttyname_r.c
View File

@ -76,7 +76,7 @@ int ttyname_r(int fd, char *buf, size_t size) {
} else if (IsFreebsd()) {
return ttyname$freebsd(fd, buf, size);
} else if (IsWindows()) {
if (isfdkind(fd, kFdFile)) {
if (__isfdkind(fd, kFdFile)) {
return ttyname$nt(fd, buf, size);
} else {
return ebadf();

32
libc/calls/internal.h
View File

@ -2,6 +2,7 @@
#define COSMOPOLITAN_LIBC_CALLS_INTERNAL_H_
#ifndef __STRICT_ANSI__
#include "libc/calls/calls.h"
#include "libc/calls/struct/iovec.h"
#include "libc/calls/struct/itimerval.h"
#include "libc/calls/struct/timespec.h"
#include "libc/calls/struct/timeval.h"
@ -37,7 +38,7 @@ struct IoctlPtmGet {
struct Fds {
size_t f; // arbitrary free slot start search index
size_t n; // capacity
size_t n; // monotonic capacity
struct Fd {
int64_t handle;
int64_t extra;
@ -47,7 +48,9 @@ struct Fds {
kFdSocket,
kFdProcess,
kFdConsole,
kFdSerial,
kFdZip,
kFdEpoll,
} kind;
unsigned flags;
} * p;
@ -62,20 +65,12 @@ hidden extern struct NtSystemInfo g_ntsysteminfo;
hidden extern struct NtStartupInfo g_ntstartupinfo;
hidden extern const struct NtSecurityAttributes kNtIsInheritable;
ssize_t createfd(void) hidden;
int growfds(void) hidden;
void removefd(int) hidden;
ssize_t __getemptyfd(void) hidden;
int __ensurefds(int) hidden;
void __removefd(int) hidden;
enum FdKind fdkind(int) hidden nosideeffect;
bool isfdopen(int) hidden nosideeffect;
bool isfdkind(int, enum FdKind) hidden nosideeffect;
forceinline bool isfdindex(int fd) {
if (!IsTrustworthy()) {
return (0 <= fd && fd < g_fds.n);
} else {
return true;
}
}
bool __isfdopen(int) hidden nosideeffect;
bool __isfdkind(int, enum FdKind) hidden nosideeffect;
forceinline size_t clampio(size_t size) {
if (!IsTrustworthy()) {
@ -267,7 +262,7 @@ bool32 onntconsoleevent$nt(u32) hidden;
void __winalarm(void *, uint32_t, uint32_t) hidden;
int ntaccesscheck(const char16_t *, u32) paramsnonnull() hidden;
i64 ntreturn(u32);
i64 winerr(void) nocallback privileged;
i64 __winerr(void) nocallback privileged;
#define mkntpath(PATH, PATH16) mkntpath2(PATH, -1u, PATH16)
#define mkntpath2(PATH, FLAGS, PATH16) \
@ -280,6 +275,13 @@ i64 winerr(void) nocallback privileged;
Count; \
})
/*───────────────────────────────────────────────────────────────────────────│─╗
│ cosmopolitan § syscalls » drivers ─╬─│┼
╚────────────────────────────────────────────────────────────────────────────│*/
ssize_t readv$serial(struct Fd *, const struct iovec *, int) hidden;
ssize_t writev$serial(struct Fd *, const struct iovec *, int) hidden;
#undef sigset
#undef i32
#undef i64

4
libc/calls/ioctl-default.c
View File

@ -29,13 +29,13 @@ int ioctl$default(int fd, uint64_t request, void *memory) {
int64_t handle;
if (!IsWindows()) {
return ioctl$sysv(fd, request, memory);
} else if (isfdopen(fd)) {
} else if (__isfdopen(fd)) {
if (g_fds.p[fd].kind == kFdSocket) {
handle = g_fds.p[fd].handle;
if ((rc = weaken(__ioctlsocket$nt)(handle, request, memory)) != -1) {
return rc;
} else {
return weaken(winsockerr)()