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plan9port / plan9 / 7e0e6522e576bc35b55a7182c23fb752cc1ec636 / . / include / libc.h
blob: 18ac25aa7383edc1e2412e43490b0e088d2e4046 [file] [log] [blame]
rsc8ad51792004-03-25 23:03:57 +0000[diff] [blame]1/*
2 * Lib9 is miscellany from the Plan 9 C library that doesn't
3 * fit into libutf or into libfmt, but is still missing from traditional
4 * Unix C libraries.
5 */
6#ifndef _LIBC_H_
7#define _LIBC_H_ 1
8#if defined(__cplusplus)
9extern "C" {
10#endif
rscb2cfc4e2003-09-30 17:47:41 +0000[diff] [blame]11
rsc8ad51792004-03-25 23:03:57 +0000[diff] [blame]12/*
13 * Begin usual libc.h
14 */
15
16#define nil ((void*)0)
17#define nelem(x) (sizeof(x)/sizeof((x)[0]))
18
19#ifndef offsetof
20#define offsetof(s, m) (ulong)(&(((s*)0)->m))
21#endif
22
23/*
24 * mem routines (provided by system <string.h>)
25 *
26extern void* memccpy(void*, void*, int, ulong);
27extern void* memset(void*, int, ulong);
28extern int memcmp(void*, void*, ulong);
29extern void* memcpy(void*, void*, ulong);
30extern void* memmove(void*, void*, ulong);
31extern void* memchr(void*, int, ulong);
32 */
33
34/*
35 * string routines (provided by system <string.h>)
36 *
37extern char* strcat(char*, char*);
38extern char* strchr(char*, int);
39extern int strcmp(char*, char*);
40extern char* strcpy(char*, char*);
41 */
42extern char* strecpy(char*, char*, char*);
43 /*
44extern char* strdup(char*);
45extern char* strncat(char*, char*, long);
46extern char* strncpy(char*, char*, long);
47extern int strncmp(char*, char*, long);
48extern char* strpbrk(char*, char*);
49extern char* strrchr(char*, int);
50extern char* strtok(char*, char*);
51extern long strlen(char*);
52extern long strspn(char*, char*);
53extern long strcspn(char*, char*);
54extern char* strstr(char*, char*);
55 */
56extern int cistrncmp(char*, char*, int);
57extern int cistrcmp(char*, char*);
58extern char* cistrstr(char*, char*);
59extern int tokenize(char*, char**, int);
60
61/*
62enum
63{
64 UTFmax = 3,
65 Runesync = 0x80,
66 Runeself = 0x80,
67 Runeerror = 0x80,
68};
69*/
70
71/*
72 * rune routines (provided by <utf.h>
73 *
74extern int runetochar(char*, Rune*);
75extern int chartorune(Rune*, char*);
76extern int runelen(long);
77extern int runenlen(Rune*, int);
78extern int fullrune(char*, int);
79extern int utflen(char*);
80extern int utfnlen(char*, long);
81extern char* utfrune(char*, long);
82extern char* utfrrune(char*, long);
83extern char* utfutf(char*, char*);
84extern char* utfecpy(char*, char*, char*);
85
86extern Rune* runestrcat(Rune*, Rune*);
87extern Rune* runestrchr(Rune*, Rune);
88extern int runestrcmp(Rune*, Rune*);
89extern Rune* runestrcpy(Rune*, Rune*);
90extern Rune* runestrncpy(Rune*, Rune*, long);
91extern Rune* runestrecpy(Rune*, Rune*, Rune*);
92extern Rune* runestrdup(Rune*);
93extern Rune* runestrncat(Rune*, Rune*, long);
94extern int runestrncmp(Rune*, Rune*, long);
95extern Rune* runestrrchr(Rune*, Rune);
96extern long runestrlen(Rune*);
97extern Rune* runestrstr(Rune*, Rune*);
98
99extern Rune tolowerrune(Rune);
100extern Rune totitlerune(Rune);
101extern Rune toupperrune(Rune);
102extern int isalpharune(Rune);
103extern int islowerrune(Rune);
104extern int isspacerune(Rune);
105extern int istitlerune(Rune);
106extern int isupperrune(Rune);
107 */
108
109/*
110 * malloc (provied by system <stdlib.h>)
111 *
112extern void* malloc(ulong);
113 */
114extern void* p9malloc(ulong);
115extern void* mallocz(ulong, int);
rsc7e0e6522004-05-23 00:58:23 +0000[diff] [blame^]116extern void p9free(void*);
117extern void* p9calloc(ulong, ulong);
118extern void* p9realloc(void*, ulong);
rsc8ad51792004-03-25 23:03:57 +0000[diff] [blame]119extern void setmalloctag(void*, ulong);
120extern void setrealloctag(void*, ulong);
121extern ulong getmalloctag(void*);
122extern ulong getrealloctag(void*);
123/*
124extern void* malloctopoolblock(void*);
125*/
126#ifndef NOPLAN9DEFINES
127#define malloc p9malloc
rsc7e0e6522004-05-23 00:58:23 +0000[diff] [blame^]128#define realloc p9realloc
129#define calloc p9calloc
130#define free p9free
rsc8ad51792004-03-25 23:03:57 +0000[diff] [blame]131#endif
132
133/*
134 * print routines (provided by <fmt.h>)
135 *
136typedef struct Fmt Fmt;
137struct Fmt{
138 uchar runes;
139 void *start;
140 void *to;
141 void *stop;
142 int (*flush)(Fmt *);
143 void *farg;
144 int nfmt;
145 va_list args;
146 int r;
147 int width;
148 int prec;
149 ulong flags;
150};
151
152enum{
153 FmtWidth = 1,
154 FmtLeft = FmtWidth << 1,
155 FmtPrec = FmtLeft << 1,
156 FmtSharp = FmtPrec << 1,
157 FmtSpace = FmtSharp << 1,
158 FmtSign = FmtSpace << 1,
159 FmtZero = FmtSign << 1,
160 FmtUnsigned = FmtZero << 1,
161 FmtShort = FmtUnsigned << 1,
162 FmtLong = FmtShort << 1,
163 FmtVLong = FmtLong << 1,
164 FmtComma = FmtVLong << 1,
165 FmtByte = FmtComma << 1,
166
167 FmtFlag = FmtByte << 1
168};
169
170extern int print(char*, ...);
171extern char* seprint(char*, char*, char*, ...);
172extern char* vseprint(char*, char*, char*, va_list);
173extern int snprint(char*, int, char*, ...);
174extern int vsnprint(char*, int, char*, va_list);
175extern char* smprint(char*, ...);
176extern char* vsmprint(char*, va_list);
177extern int sprint(char*, char*, ...);
178extern int fprint(int, char*, ...);
179extern int vfprint(int, char*, va_list);
180
181extern int runesprint(Rune*, char*, ...);
182extern int runesnprint(Rune*, int, char*, ...);
183extern int runevsnprint(Rune*, int, char*, va_list);
184extern Rune* runeseprint(Rune*, Rune*, char*, ...);
185extern Rune* runevseprint(Rune*, Rune*, char*, va_list);
186extern Rune* runesmprint(char*, ...);
187extern Rune* runevsmprint(char*, va_list);
188
189extern int fmtfdinit(Fmt*, int, char*, int);
190extern int fmtfdflush(Fmt*);
191extern int fmtstrinit(Fmt*);
192extern char* fmtstrflush(Fmt*);
193extern int runefmtstrinit(Fmt*);
194extern Rune* runefmtstrflush(Fmt*);
195
196extern int fmtinstall(int, int (*)(Fmt*));
197extern int dofmt(Fmt*, char*);
198extern int dorfmt(Fmt*, Rune*);
199extern int fmtprint(Fmt*, char*, ...);
200extern int fmtvprint(Fmt*, char*, va_list);
201extern int fmtrune(Fmt*, int);
202extern int fmtstrcpy(Fmt*, char*);
203extern int fmtrunestrcpy(Fmt*, Rune*);
204 */
205
206/*
207 * error string for %r
208 * supplied on per os basis, not part of fmt library
209 *
210 * (provided by lib9, but declared in fmt.h)
211 *
212extern int errfmt(Fmt *f);
213 */
214
215/*
216 * quoted strings
217 */
218extern char *unquotestrdup(char*);
219extern Rune *unquoterunestrdup(Rune*);
220extern char *quotestrdup(char*);
221extern Rune *quoterunestrdup(Rune*);
222/*
223 * in fmt.h
224 *
225extern void quotefmtinstall(void);
226extern int quotestrfmt(Fmt*);
227extern int quoterunestrfmt(Fmt*);
228 */
229#ifndef NOPLAN9DEFINES
230#define doquote fmtdoquote
231#endif
232extern int needsrcquote(int);
233
234/*
235 * random number (in <stdlib.h>)
236 *
237extern void srand(long);
238extern int rand(void);
239 */
240extern int nrand(int);
241extern long lrand(void);
242extern long lnrand(long);
243extern double frand(void);
244extern ulong truerand(void); /* uses /dev/random */
245extern ulong ntruerand(ulong); /* uses /dev/random */
246
247/*
248 * math
249 */
250extern ulong getfcr(void);
251extern void setfsr(ulong);
252extern ulong getfsr(void);
253extern void setfcr(ulong);
254extern double NaN(void);
255extern double Inf(int);
256extern int isNaN(double);
257extern int isInf(double, int);
258extern ulong umuldiv(ulong, ulong, ulong);
259extern long muldiv(long, long, long);
260
261/*
262 * provided by math.h
263 *
264extern double pow(double, double);
265extern double atan2(double, double);
266extern double fabs(double);
267extern double atan(double);
268extern double log(double);
269extern double log10(double);
270extern double exp(double);
271extern double floor(double);
272extern double ceil(double);
273extern double hypot(double, double);
274extern double sin(double);
275extern double cos(double);
276extern double tan(double);
277extern double asin(double);
278extern double acos(double);
279extern double sinh(double);
280extern double cosh(double);
281extern double tanh(double);
282extern double sqrt(double);
283extern double fmod(double, double);
284#define HUGE 3.4028234e38
285#define PIO2 1.570796326794896619231e0
286#define PI (PIO2+PIO2)
287 */
288#define PI M_PI
289#define PIO2 M_PI_2
290
291/*
292 * Time-of-day
293 */
294
295typedef
296struct Tm
297{
298 int sec;
299 int min;
300 int hour;
301 int mday;
302 int mon;
303 int year;
304 int wday;
305 int yday;
306 char zone[4];
307 int tzoff;
308} Tm;
309
310extern Tm* p9gmtime(long);
311extern Tm* p9localtime(long);
312extern char* p9asctime(Tm*);
313extern char* p9ctime(long);
314extern double p9cputime(void);
315extern long p9times(long*);
316extern long p9tm2sec(Tm*);
317extern vlong p9nsec(void);
318
319#ifndef NOPLAN9DEFINES
320#define gmtime p9gmtime
321#define localtime p9localtime
322#define asctime p9asctime
323#define ctime p9ctime
324#define cputime p9cputime
325#define times p9times
326#define tm2sec p9tm2sec
327#define nsec p9nsec
328#endif
329
330/*
331 * one-of-a-kind
332 */
333enum
334{
335 PNPROC = 1,
336 PNGROUP = 2,
337};
338
339/* extern int abs(int); <stdlib.h> */
340extern int p9atexit(void(*)(void));
341extern void p9atexitdont(void(*)(void));
342extern int atnotify(int(*)(void*, char*), int);
343/*
344 * <stdlib.h>
345extern double atof(char*); <stdlib.h>
rsc8ad51792004-03-25 23:03:57 +0000[diff] [blame]346 */
rsca67406e2004-04-08 19:31:48 +0000[diff] [blame]347extern int p9atoi(char*);
348extern long p9atol(char*);
349extern vlong p9atoll(char*);
rsc8ad51792004-03-25 23:03:57 +0000[diff] [blame]350extern double charstod(int(*)(void*), void*);
351extern char* cleanname(char*);
352extern int p9decrypt(void*, void*, int);
353extern int p9encrypt(void*, void*, int);
354extern int dec64(uchar*, int, char*, int);
355extern int enc64(char*, int, uchar*, int);
356extern int dec32(uchar*, int, char*, int);
357extern int enc32(char*, int, uchar*, int);
358extern int dec16(uchar*, int, char*, int);
359extern int enc16(char*, int, uchar*, int);
360extern int encodefmt(Fmt*);
361extern int dirmodefmt(Fmt*);
362extern void exits(char*);
363extern double frexp(double, int*);
364extern ulong getcallerpc(void*);
365extern char* p9getenv(char*);
366extern int p9putenv(char*, char*);
367extern int getfields(char*, char**, int, int, char*);
368extern int gettokens(char *, char **, int, char *);
369extern char* getuser(void);
370extern char* p9getwd(char*, int);
371extern int iounit(int);
372/* extern long labs(long); <math.h> */
373/* extern double ldexp(double, int); <math.h> */
374extern void p9longjmp(p9jmp_buf, int);
375extern char* mktemp(char*);
376extern int opentemp(char*);
377/* extern double modf(double, double*); <math.h> */
378extern int netcrypt(void*, void*);
379extern void p9notejmp(void*, p9jmp_buf, int);
380extern void perror(const char*);
381extern int postnote(int, int, char *);
rscbe36ff62004-04-29 17:13:24 +0000[diff] [blame]382extern double p9pow10(int);
rsc8ad51792004-03-25 23:03:57 +0000[diff] [blame]383/* extern int putenv(char*, char*); <stdlib.h. */
384/* extern void qsort(void*, long, long, int (*)(void*, void*)); <stdlib.h> */
385/* extern int p9setjmp(p9jmp_buf); */
386#define p9setjmp(b) sigsetjmp((void*)(b), 1)
387/*
388 * <stdlib.h>
389extern double strtod(char*, char**);
390extern long strtol(char*, char**, int);
391extern ulong strtoul(char*, char**, int);
392extern vlong strtoll(char*, char**, int);
393extern uvlong strtoull(char*, char**, int);
394 */
395extern void sysfatal(char*, ...);
396extern void p9syslog(int, char*, char*, ...);
397extern long p9time(long*);
398/* extern int tolower(int); <ctype.h> */
399/* extern int toupper(int); <ctype.h> */
rsccf10d092004-04-21 23:34:46 +0000[diff] [blame]400extern void needstack(int);
401
rsc8ad51792004-03-25 23:03:57 +0000[diff] [blame]402#ifndef NOPLAN9DEFINES
403#define atexit p9atexit
404#define atexitdont p9atexitdont
rsca67406e2004-04-08 19:31:48 +0000[diff] [blame]405#define atoi p9atoi
406#define atol p9atol
407#define atoll p9atoll
rsc8ad51792004-03-25 23:03:57 +0000[diff] [blame]408#define encrypt p9encrypt
409#define decrypt p9decrypt
410#define getenv p9getenv
411#define getwd p9getwd
412#define longjmp p9longjmp
413#undef setjmp
414#define setjmp p9setjmp
415#define putenv p9putenv
416#define notejmp p9notejmp
417#define jmp_buf p9jmp_buf
418#define syslog p9syslog
419#define time p9time
rscbe36ff62004-04-29 17:13:24 +0000[diff] [blame]420#define pow10 p9pow10
rsc8ad51792004-03-25 23:03:57 +0000[diff] [blame]421#endif
422
423/*
424 * synchronization
425 */
426typedef
427struct Lock {
428 int val;
429} Lock;
430
431extern int _tas(int*);
432
433extern void lock(Lock*);
434extern void unlock(Lock*);
435extern int canlock(Lock*);
436
437typedef struct QLp QLp;
438struct QLp
439{
440 int inuse;
441 QLp *next;
442 char state;
443};
444
445typedef
446struct QLock
447{
448 Lock lock;
449 int locked;
450 QLp *head;
451 QLp *tail;
452} QLock;
453
454extern void qlock(QLock*);
455extern void qunlock(QLock*);
456extern int canqlock(QLock*);
457extern void _qlockinit(ulong (*)(ulong, ulong)); /* called only by the thread library */
458
459typedef
460struct RWLock
461{
462 Lock lock;
463 int readers; /* number of readers */
464 int writer; /* number of writers */
465 QLp *head; /* list of waiting processes */
466 QLp *tail;
467} RWLock;
468
469extern void rlock(RWLock*);
470extern void runlock(RWLock*);
471extern int canrlock(RWLock*);
472extern void wlock(RWLock*);
473extern void wunlock(RWLock*);
474extern int canwlock(RWLock*);
475
476typedef
477struct Rendez
478{
479 QLock *l;
480 QLp *head;
481 QLp *tail;
482} Rendez;
483
484extern void rsleep(Rendez*); /* unlocks r->l, sleeps, locks r->l again */
485extern int rwakeup(Rendez*);
486extern int rwakeupall(Rendez*);
487extern void** privalloc(void);
488extern void privfree(void**);
489
490/*
491 * network dialing
492 */
493#define NETPATHLEN 40
494extern int p9accept(int, char*);
495extern int p9announce(char*, char*);
496extern int p9dial(char*, char*, char*, int*);
497extern void p9setnetmtpt(char*, int, char*);
498extern int p9hangup(int);
499extern int p9listen(char*, char*);
500extern char* p9netmkaddr(char*, char*, char*);
501extern int p9reject(int, char*, char*);
502
503#ifndef NOPLAN9DEFINES
504#define accept p9accept
505#define announce p9announce
506#define dial p9dial
507#define setnetmtpt p9setnetmtpt
508#define hangup p9hangup
509#define listen p9listen
510#define netmkaddr p9netmkaddr
511#define reject p9reject
512#endif
513
514/*
515 * encryption
516 */
517extern int pushssl(int, char*, char*, char*, int*);
518extern int pushtls(int, char*, char*, int, char*, char*);
519
520/*
521 * network services
522 */
523typedef struct NetConnInfo NetConnInfo;
524struct NetConnInfo
525{
526 char *dir; /* connection directory */
527 char *root; /* network root */
528 char *spec; /* binding spec */
529 char *lsys; /* local system */
530 char *lserv; /* local service */
531 char *rsys; /* remote system */
532 char *rserv; /* remote service */
533};
534extern NetConnInfo* getnetconninfo(char*, int);
535extern void freenetconninfo(NetConnInfo*);
536
537/*
538 * system calls
539 *
540 */
541#define STATMAX 65535U /* max length of machine-independent stat structure */
542#define DIRMAX (sizeof(Dir)+STATMAX) /* max length of Dir structure */
543#define ERRMAX 128 /* max length of error string */
544
545#define MORDER 0x0003 /* mask for bits defining order of mounting */
546#define MREPL 0x0000 /* mount replaces object */
547#define MBEFORE 0x0001 /* mount goes before others in union directory */
548#define MAFTER 0x0002 /* mount goes after others in union directory */
549#define MCREATE 0x0004 /* permit creation in mounted directory */
550#define MCACHE 0x0010 /* cache some data */
551#define MMASK 0x0017 /* all bits on */
552
553#define OREAD 0 /* open for read */
554#define OWRITE 1 /* write */
555#define ORDWR 2 /* read and write */
556#define OEXEC 3 /* execute, == read but check execute permission */
557#define OTRUNC 16 /* or'ed in (except for exec), truncate file first */
558#define OCEXEC 32 /* or'ed in, close on exec */
559#define ORCLOSE 64 /* or'ed in, remove on close */
rscbe36ff62004-04-29 17:13:24 +0000[diff] [blame]560#define ODIRECT 128 /* or'ed in, bypass the cache */
rsc8ad51792004-03-25 23:03:57 +0000[diff] [blame]561#define OEXCL 0x1000 /* or'ed in, exclusive use (create only) */
562
563#define AEXIST 0 /* accessible: exists */
564#define AEXEC 1 /* execute access */
565#define AWRITE 2 /* write access */
566#define AREAD 4 /* read access */
567
568/* Segattch */
569#define SG_RONLY 0040 /* read only */
570#define SG_CEXEC 0100 /* detach on exec */
571
572#define NCONT 0 /* continue after note */
573#define NDFLT 1 /* terminate after note */
574#define NSAVE 2 /* clear note but hold state */
575#define NRSTR 3 /* restore saved state */
576
577/* bits in Qid.type */
578#define QTDIR 0x80 /* type bit for directories */
579#define QTAPPEND 0x40 /* type bit for append only files */
580#define QTEXCL 0x20 /* type bit for exclusive use files */
581#define QTMOUNT 0x10 /* type bit for mounted channel */
582#define QTAUTH 0x08 /* type bit for authentication file */
583#define QTFILE 0x00 /* plain file */
584
585/* bits in Dir.mode */
586#define DMDIR 0x80000000 /* mode bit for directories */
587#define DMAPPEND 0x40000000 /* mode bit for append only files */
588#define DMEXCL 0x20000000 /* mode bit for exclusive use files */
589#define DMMOUNT 0x10000000 /* mode bit for mounted channel */
590#define DMAUTH 0x08000000 /* mode bit for authentication file */
591#define DMREAD 0x4 /* mode bit for read permission */
592#define DMWRITE 0x2 /* mode bit for write permission */
593#define DMEXEC 0x1 /* mode bit for execute permission */
594
595#if defined(__FreeBSD__)
596#undef RFFDG
597#undef RFNOTEG
598#undef RFPROC
599#undef RFMEM
600#undef RFNOWAIT
601#undef RFCFDG
602#undef RFNAMEG
603#undef RFENVG
604#undef RFCENVG
605#undef RFCFDG
606#undef RFCNAMEG
607#endif
608
609enum
610{
611 RFNAMEG = (1<<0),
612 RFENVG = (1<<1),
613 RFFDG = (1<<2),
614 RFNOTEG = (1<<3),
615 RFPROC = (1<<4),
616 RFMEM = (1<<5),
617 RFNOWAIT = (1<<6),
618 RFCNAMEG = (1<<10),
619 RFCENVG = (1<<11),
620 RFCFDG = (1<<12),
621/* RFREND = (1<<13), */
622/* RFNOMNT = (1<<14) */
623};
624
625extern int ffork(int, void(*)(void*), void*);
626
627typedef
628struct Qid
629{
630 uvlong path;
631 ulong vers;
632 uchar type;
633} Qid;
634
635typedef
636struct Dir {
637 /* system-modified data */
638 ushort type; /* server type */
639 uint dev; /* server subtype */
640 /* file data */
641 Qid qid; /* unique id from server */
642 ulong mode; /* permissions */
643 ulong atime; /* last read time */
644 ulong mtime; /* last write time */
645 vlong length; /* file length */
646 char *name; /* last element of path */
647 char *uid; /* owner name */
648 char *gid; /* group name */
649 char *muid; /* last modifier name */
650} Dir;
651
652/* keep /sys/src/ape/lib/ap/plan9/sys9.h in sync with this -rsc */
653typedef
654struct Waitmsg
655{
656 int pid; /* of loved one */
657 ulong time[3]; /* of loved one & descendants */
658 char *msg;
659} Waitmsg;
660
661typedef
662struct IOchunk
663{
664 void *addr;
665 ulong len;
666} IOchunk;
667
668extern void _exits(char*);
669
670extern void abort(void);
rsc924eb642004-03-25 23:30:46 +0000[diff] [blame]671/* extern int access(char*, int); */
rsc8ad51792004-03-25 23:03:57 +0000[diff] [blame]672extern long p9alarm(ulong);
673extern int await(char*, int);
674extern int awaitnohang(char*, int);
675/* extern int bind(char*, char*, int); give up */
676/* extern int brk(void*); <unistd.h> */
677extern int p9chdir(char*);
678extern int close(int);
679extern int p9create(char*, int, ulong);
680extern int p9dup(int, int);
681extern int errstr(char*, uint);
682extern int p9exec(char*, char*[]);
683/* extern int execl(char*, ...); <unistd.h> */
rsc070905e2004-04-21 04:48:39 +0000[diff] [blame]684extern int p9fork(void);
rsc8ad51792004-03-25 23:03:57 +0000[diff] [blame]685extern int p9rfork(int);
686/* not implemented
687extern int fauth(int, char*);
688extern int fstat(int, uchar*, int);
689extern int fwstat(int, uchar*, int);
690extern int fversion(int, int, char*, int);
691extern int mount(int, int, char*, int, char*);
692extern int unmount(char*, char*);
693*/
694extern int noted(int);
695extern int notify(void(*)(void*, char*));
696extern int p9open(char*, int);
697extern int fd2path(int, char*, int);
698extern int p9pipe(int*);
699/*
700 * use defs from <unistd.h>
701extern long pread(int, void*, long, vlong);
702extern long preadv(int, IOchunk*, int, vlong);
703extern long pwrite(int, void*, long, vlong);
704extern long pwritev(int, IOchunk*, int, vlong);
705extern long read(int, void*, long);
706 */
707extern long readn(int, void*, long);
708/* extern long readv(int, IOchunk*, int); <unistd.h> */
709extern int remove(const char*);
710/* extern void* sbrk(ulong); <unistd.h> */
711/* extern long oseek(int, long, int); */
712extern vlong p9seek(int, vlong, int);
713/* give up
714extern long segattach(int, char*, void*, ulong);
715extern int segbrk(void*, void*);
716extern int segdetach(void*);
717extern int segflush(void*, ulong);
718extern int segfree(void*, ulong);
719*/
720extern int p9sleep(long);
721/* extern int stat(char*, uchar*, int); give up */
722extern Waitmsg* p9wait(void);
723extern Waitmsg* waitnohang(void);
724extern int p9waitpid(void);
725/* <unistd.h>
726extern long write(int, void*, long);
727extern long writev(int, IOchunk*, int);
728*/
729/* extern int wstat(char*, uchar*, int); give up */
730extern ulong rendezvous(ulong, ulong);
731
732#ifndef NOPLAN9DEFINES
733#define alarm p9alarm
734#define dup p9dup
735#define exec p9exec
736#define seek p9seek
737#define sleep p9sleep
738#define wait p9wait
739#define waitpid p9waitpid
rsc070905e2004-04-21 04:48:39 +0000[diff] [blame]740#define fork p9fork
rsc8ad51792004-03-25 23:03:57 +0000[diff] [blame]741#define rfork p9rfork
rsc924eb642004-03-25 23:30:46 +0000[diff] [blame]742/* #define access p9access */
rsc8ad51792004-03-25 23:03:57 +0000[diff] [blame]743#define create p9create
744#define open p9open
745#define pipe p9pipe
746#endif
747
748extern Dir* dirstat(char*);
749extern Dir* dirfstat(int);
750extern int dirwstat(char*, Dir*);
751extern int dirfwstat(int, Dir*);
752extern long dirread(int, Dir**);
753extern void nulldir(Dir*);
754extern long dirreadall(int, Dir**);
755/* extern int getpid(void); <unistd.h> */
756/* extern int getppid(void); */
757extern void rerrstr(char*, uint);
758extern char* sysname(void);
759extern void werrstr(char*, ...);
760extern char* getns(void);
761extern char* get9root(void);
762extern char* unsharp(char*);
763extern int sendfd(int, int);
764extern int recvfd(int);
765extern int post9pservice(int, char*);
766
767/* external names that we don't want to step on */
768#ifndef NOPLAN9DEFINES
769#define main p9main
770#endif
771
772/* compiler directives on plan 9 */
773#define USED(x) if(x){}else{}
774#define SET(x) ((x)=0)
775
776/* command line */
777extern char *argv0;
778extern void __fixargv0(void);
779#define ARGBEGIN for((argv0?0:(argv0=(__fixargv0(),*argv))),argv++,argc--;\
780 argv[0] && argv[0][0]=='-' && argv[0][1];\
781 argc--, argv++) {\
782 char *_args, *_argt;\
783 Rune _argc;\
784 _args = &argv[0][1];\
785 if(_args[0]=='-' && _args[1]==0){\
786 argc--; argv++; break;\
787 }\
788 _argc = 0;\
789 while(*_args && (_args += chartorune(&_argc, _args)))\
790 switch(_argc)
791#define ARGEND SET(_argt);USED(_argt);USED(_argc);USED(_args);}USED(argv);USED(argc);
792#define ARGF() (_argt=_args, _args="",\
793 (*_argt? _argt: argv[1]? (argc--, *++argv): 0))
794#define EARGF(x) (_argt=_args, _args="",\
795 (*_argt? _argt: argv[1]? (argc--, *++argv): ((x), abort(), (char*)0)))
796
797#define ARGC() _argc
798
799#if defined(__cplusplus)
800}
801#endif
802#endif /* _LIB9_H_ */