ref: bd6c2aad586814b091ce5aca9d41cf2c51adb37b
dir: /Linux/386/include/lib9.h/
/* define _BSD_SOURCE to use ISO C, POSIX, and 4.3BSD things. */
#define USE_PTHREADS
#ifndef _DEFAULT_SOURCE
#define _DEFAULT_SOURCE
#endif
#ifndef _BSD_SOURCE
#define _BSD_SOURCE
#endif
#define _XOPEN_SOURCE 500
#define _LARGEFILE_SOURCE 1
#define _LARGEFILE64_SOURCE 1
#define _FILE_OFFSET_BITS 64
#ifdef USE_PTHREADS
#define _REENTRANT 1
#endif
#include <features.h>
#include <sys/types.h>
#include <stdlib.h>
#include <stdarg.h>
#define sync __os_sync
#include <unistd.h>
#undef sync
#include <errno.h>
#define __NO_STRING_INLINES
#include <string.h>
#include "math.h"
#include <fcntl.h>
#include <setjmp.h>
#include <float.h>
#include <time.h>
#include <endian.h>
#define getwd infgetwd
#ifndef EMU
typedef struct Proc Proc;
#endif
/*
* math module dtoa
* #define __LITTLE_ENDIAN /usr/include/endian.h under linux
*/
#define nil ((void*)0)
typedef unsigned char uchar;
typedef signed char schar;
typedef unsigned int Rune;
typedef long long int vlong;
typedef unsigned long long int uvlong;
typedef unsigned int u32int;
typedef uvlong u64int;
typedef unsigned int mpdigit; /* for /sys/include/mp.h */
typedef unsigned short u16int;
typedef unsigned char u8int;
typedef unsigned long uintptr;
#define USED(x) if(x){}else{}
#define SET(x)
#undef nelem
#define nelem(x) (sizeof(x)/sizeof((x)[0]))
#undef offsetof
#define offsetof(s, m) (ulong)(&(((s*)0)->m))
#undef assert
#define assert(x) if(x){}else _assert("x")
/*
* most mem and string routines are declared by ANSI/POSIX files above
*/
extern char* strecpy(char*, char*, char*);
extern char* strdup(const char*);
extern int cistrncmp(char*, char*, int);
extern int cistrcmp(char*, char*);
extern char* cistrstr(char*, char*);
extern int tokenize(char*, char**, int);
enum
{
UTFmax = 4, /* maximum bytes per rune */
Runesync = 0x80, /* cannot represent part of a UTF sequence (<) */
Runeself = 0x80, /* rune and UTF sequences are the same (<) */
Runeerror = 0xFFFD, /* decoding error in UTF */
Runemax = 0x10FFFF, /* 21-bit rune */
Runemask = 0x1FFFFF, /* bits used by runes (see grep) */
};
/*
* rune routines
*/
extern int runetochar(char*, Rune*);
extern int chartorune(Rune*, char*);
extern int runelen(long);
extern int runenlen(Rune*, int);
extern int fullrune(char*, int);
extern int utflen(char*);
extern int utfnlen(char*, long);
extern char* utfrune(char*, long);
extern char* utfrrune(char*, long);
extern char* utfutf(char*, char*);
extern char* utfecpy(char*, char*, char*);
extern Rune* runestrcat(Rune*, Rune*);
extern Rune* runestrchr(Rune*, Rune);
extern int runestrcmp(Rune*, Rune*);
extern Rune* runestrcpy(Rune*, Rune*);
extern Rune* runestrncpy(Rune*, Rune*, long);
extern Rune* runestrecpy(Rune*, Rune*, Rune*);
extern Rune* runestrdup(Rune*);
extern Rune* runestrncat(Rune*, Rune*, long);
extern int runestrncmp(Rune*, Rune*, long);
extern Rune* runestrrchr(Rune*, Rune);
extern long runestrlen(Rune*);
extern Rune* runestrstr(Rune*, Rune*);
extern Rune tolowerrune(Rune);
extern Rune totitlerune(Rune);
extern Rune toupperrune(Rune);
extern int isalpharune(Rune);
extern int islowerrune(Rune);
extern int isspacerune(Rune);
extern int istitlerune(Rune);
extern int isupperrune(Rune);
/*
* malloc
*/
extern void* malloc(size_t);
extern void* mallocz(ulong, int);
extern void free(void*);
extern ulong msize(void*);
extern void* calloc(size_t, size_t);
extern void* realloc(void*, size_t);
extern void setmalloctag(void*, ulong);
extern void setrealloctag(void*, ulong);
extern ulong getmalloctag(void*);
extern ulong getrealloctag(void*);
extern void* malloctopoolblock(void*);
/*
* print routines
*/
typedef struct Fmt Fmt;
struct Fmt{
uchar runes; /* output buffer is runes or chars? */
void *start; /* of buffer */
void *to; /* current place in the buffer */
void *stop; /* end of the buffer; overwritten if flush fails */
int (*flush)(Fmt *); /* called when to == stop */
void *farg; /* to make flush a closure */
int nfmt; /* num chars formatted so far */
va_list args; /* args passed to dofmt */
int r; /* % format Rune */
int width;
int prec;
ulong flags;
};
enum{
FmtWidth = 1,
FmtLeft = FmtWidth << 1,
FmtPrec = FmtLeft << 1,
FmtSharp = FmtPrec << 1,
FmtSpace = FmtSharp << 1,
FmtSign = FmtSpace << 1,
FmtZero = FmtSign << 1,
FmtUnsigned = FmtZero << 1,
FmtShort = FmtUnsigned << 1,
FmtLong = FmtShort << 1,
FmtVLong = FmtLong << 1,
FmtComma = FmtVLong << 1,
FmtByte = FmtComma << 1,
FmtFlag = FmtByte << 1
};
extern int print(char*, ...);
extern char* seprint(char*, char*, char*, ...);
extern char* vseprint(char*, char*, char*, va_list);
extern int snprint(char*, int, char*, ...);
extern int vsnprint(char*, int, char*, va_list);
extern char* smprint(char*, ...);
extern char* vsmprint(char*, va_list);
extern int sprint(char*, char*, ...);
extern int fprint(int, char*, ...);
extern int vfprint(int, char*, va_list);
extern int runesprint(Rune*, char*, ...);
extern int runesnprint(Rune*, int, char*, ...);
extern int runevsnprint(Rune*, int, char*, va_list);
extern Rune* runeseprint(Rune*, Rune*, char*, ...);
extern Rune* runevseprint(Rune*, Rune*, char*, va_list);
extern Rune* runesmprint(char*, ...);
extern Rune* runevsmprint(char*, va_list);
extern int fmtfdinit(Fmt*, int, char*, int);
extern int fmtfdflush(Fmt*);
extern int fmtstrinit(Fmt*);
extern char* fmtstrflush(Fmt*);
extern int runefmtstrinit(Fmt*);
extern Rune* runefmtstrflush(Fmt*);
extern int fmtinstall(int, int (*)(Fmt*));
extern int dofmt(Fmt*, char*);
extern int dorfmt(Fmt*, Rune*);
extern int fmtprint(Fmt*, char*, ...);
extern int fmtvprint(Fmt*, char*, va_list);
extern int fmtrune(Fmt*, int);
extern int fmtstrcpy(Fmt*, char*);
extern int fmtrunestrcpy(Fmt*, Rune*);
/*
* error string for %r
* supplied on per os basis, not part of fmt library
*/
extern int errfmt(Fmt *f);
/*
* quoted strings
*/
extern char *unquotestrdup(char*);
extern Rune *unquoterunestrdup(Rune*);
extern char *quotestrdup(char*);
extern Rune *quoterunestrdup(Rune*);
extern int quotestrfmt(Fmt*);
extern int quoterunestrfmt(Fmt*);
extern void quotefmtinstall(void);
extern int (*doquote)(int);
/*
* random number
*/
extern ulong truerand(void);
extern ulong ntruerand(ulong);
/*
* math
*/
extern int isNaN(double);
extern double NaN(void);
extern int isInf(double, int);
/*
* Time-of-day
*/
typedef struct Tm Tm;
struct Tm {
int sec;
int min;
int hour;
int mday;
int mon;
int year;
int wday;
int yday;
char zone[4];
int tzoff;
};
extern vlong osnsec(void);
#define nsec osnsec
/*
* one-of-a-kind
*/
extern void _assert(char*);
extern double charstod(int(*)(void*), void*);
extern char* cleanname(char*);
extern uintptr getcallerpc(void*);
extern int getfields(char*, char**, int, int, char*);
extern char* getuser(void);
extern char* getwd(char*, int);
extern double ipow10(int);
#define pow10 infpow10
extern double pow10(int);
extern vlong strtoll(const char*, char**, int);
#define qsort infqsort
extern void qsort(void*, long, long, int (*)(void*, void*));
extern uvlong strtoull(const char*, char**, int);
extern void sysfatal(char*, ...);
extern int dec64(uchar*, int, char*, int);
extern int enc64(char*, int, uchar*, int);
extern int dec32(uchar*, int, char*, int);
extern int enc32(char*, int, uchar*, int);
extern int dec16(uchar*, int, char*, int);
extern int enc16(char*, int, uchar*, int);
extern int encodefmt(Fmt*);
/*
* synchronization
*/
typedef
struct Lock {
int val;
int pid;
} Lock;
extern int _tas(int*);
extern void lock(Lock*);
extern void unlock(Lock*);
extern int canlock(Lock*);
typedef struct QLock QLock;
struct QLock
{
Lock use; /* to access Qlock structure */
Proc *head; /* next process waiting for object */
Proc *tail; /* last process waiting for object */
int locked; /* flag */
};
extern void qlock(QLock*);
extern void qunlock(QLock*);
extern int canqlock(QLock*);
extern void _qlockinit(ulong (*)(ulong, ulong)); /* called only by the thread library */
typedef
struct RWLock
{
Lock l; /* Lock modify lock */
QLock x; /* Mutual exclusion lock */
QLock k; /* Lock for waiting writers */
int readers; /* Count of readers in lock */
} RWLock;
extern int canrlock(RWLock*);
extern int canwlock(RWLock*);
extern void rlock(RWLock*);
extern void runlock(RWLock*);
extern void wlock(RWLock*);
extern void wunlock(RWLock*);
/*
* network dialing
*/
#define NETPATHLEN 40
/*
* system calls
*
*/
#define STATMAX 65535U /* max length of machine-independent stat structure */
#define DIRMAX (sizeof(Dir)+STATMAX) /* max length of Dir structure */
#define ERRMAX 128 /* max length of error string */
#define MORDER 0x0003 /* mask for bits defining order of mounting */
#define MREPL 0x0000 /* mount replaces object */
#define MBEFORE 0x0001 /* mount goes before others in union directory */
#define MAFTER 0x0002 /* mount goes after others in union directory */
#define MCREATE 0x0004 /* permit creation in mounted directory */
#define MCACHE 0x0010 /* cache some data */
#define MMASK 0x0017 /* all bits on */
#define OREAD 0 /* open for read */
#define OWRITE 1 /* write */
#define ORDWR 2 /* read and write */
#define OEXEC 3 /* execute, == read but check execute permission */
#define OTRUNC 16 /* or'ed in (except for exec), truncate file first */
#define OCEXEC 32 /* or'ed in, close on exec */
#define ORCLOSE 64 /* or'ed in, remove on close */
#define OEXCL 0x1000 /* or'ed in, exclusive use (create only) */
#define AEXIST 0 /* accessible: exists */
#define AEXEC 1 /* execute access */
#define AWRITE 2 /* write access */
#define AREAD 4 /* read access */
/* bits in Qid.type */
#define QTDIR 0x80 /* type bit for directories */
#define QTAPPEND 0x40 /* type bit for append only files */
#define QTEXCL 0x20 /* type bit for exclusive use files */
#define QTMOUNT 0x10 /* type bit for mounted channel */
#define QTAUTH 0x08 /* type bit for authentication file */
#define QTFILE 0x00 /* plain file */
/* bits in Dir.mode */
#define DMDIR 0x80000000 /* mode bit for directories */
#define DMAPPEND 0x40000000 /* mode bit for append only files */
#define DMEXCL 0x20000000 /* mode bit for exclusive use files */
#define DMMOUNT 0x10000000 /* mode bit for mounted channel */
#define DMAUTH 0x08000000 /* mode bit for authentication file */
#define DMREAD 0x4 /* mode bit for read permission */
#define DMWRITE 0x2 /* mode bit for write permission */
#define DMEXEC 0x1 /* mode bit for execute permission */
typedef
struct Qid
{
uvlong path;
ulong vers;
uchar type;
} Qid;
typedef
struct Dir {
/* system-modified data */
ushort type; /* server type */
uint dev; /* server subtype */
/* file data */
Qid qid; /* unique id from server */
ulong mode; /* permissions */
ulong atime; /* last read time */
ulong mtime; /* last write time */
vlong length; /* file length */
char *name; /* last element of path */
char *uid; /* owner name */
char *gid; /* group name */
char *muid; /* last modifier name */
} Dir;
extern Dir* dirstat(char*);
extern Dir* dirfstat(int);
extern int dirwstat(char*, Dir*);
extern int dirfwstat(int, Dir*);
extern long dirread(int, Dir**);
extern void nulldir(Dir*);
extern long dirreadall(int, Dir**);
typedef
struct Waitmsg
{
int pid; /* of loved one */
ulong time[3]; /* of loved one & descendants */
char *msg;
} Waitmsg;
extern void _exits(char*);
extern void exits(char*);
extern int create(char*, int, int);
extern int errstr(char*, uint);
extern void perror(const char*);
extern long readn(int, void*, long);
extern int remove(const char*);
extern void rerrstr(char*, uint);
extern vlong seek(int, vlong, int);
extern int segflush(void*, ulong);
extern void werrstr(char*, ...);
extern char *argv0;
#define ARGBEGIN for((argv0||(argv0=*argv)),argv++,argc--;\
argv[0] && argv[0][0]=='-' && argv[0][1];\
argc--, argv++) {\
char *_args, *_argt;\
Rune _argc;\
_args = &argv[0][1];\
if(_args[0]=='-' && _args[1]==0){\
argc--; argv++; break;\
}\
_argc = 0;\
while(*_args && (_args += chartorune(&_argc, _args)))\
switch(_argc)
#define ARGEND SET(_argt);USED(_argt);USED(_argc); USED(_args);}USED(argv); USED(argc);
#define ARGF() (_argt=_args, _args="",\
(*_argt? _argt: argv[1]? (argc--, *++argv): 0))
#define EARGF(x) (_argt=_args, _args="",\
(*_argt? _argt: argv[1]? (argc--, *++argv): ((x), abort(), (char*)0)))
#define ARGC() _argc
/*
* Extensions for Inferno to basic libc.h
*/
#define setbinmode()
/* FCR */
#define FPINEX (1<<5)
#define FPUNFL ((1<<4)|(1<<1))
#define FPOVFL (1<<3)
#define FPZDIV (1<<2)
#define FPINVAL (1<<0)
#define FPRNR (0<<10)
#define FPRZ (3<<10)
#define FPRPINF (2<<10)
#define FPRNINF (1<<10)
#define FPRMASK (3<<10)
#define FPPEXT (3<<8)
#define FPPSGL (0<<8)
#define FPPDBL (2<<8)
#define FPPMASK (3<<8)
/* FSR */
#define FPAINEX FPINEX
#define FPAOVFL FPOVFL
#define FPAUNFL FPUNFL
#define FPAZDIV FPZDIV
#define FPAINVAL FPINVAL
extern void setfcr(ulong);
extern void setfsr(ulong);
extern ulong getfcr(void);
extern ulong getfsr(void);