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  1 b2cfc4e2 2003-09-30 devnull /*

  2 b2cfc4e2 2003-09-30 devnull  * Lib9 is miscellany from the Plan 9 C library that doesn't

  3 b2cfc4e2 2003-09-30 devnull  * fit into libutf or into libfmt, but is still missing from traditional

  4 b2cfc4e2 2003-09-30 devnull  * Unix C libraries.

  5 b2cfc4e2 2003-09-30 devnull  */

  6 b2cfc4e2 2003-09-30 devnull #ifndef _LIB9H_

  7 b2cfc4e2 2003-09-30 devnull #define _LIB9H_ 1

  8 b2cfc4e2 2003-09-30 devnull 

  9 b2cfc4e2 2003-09-30 devnull #if defined(__cplusplus)

 10 b2cfc4e2 2003-09-30 devnull extern "C" {

 11 b2cfc4e2 2003-09-30 devnull #endif

 12 b2cfc4e2 2003-09-30 devnull                                                                                 

 13 b2cfc4e2 2003-09-30 devnull 

 14 b2cfc4e2 2003-09-30 devnull #include <unistd.h>

 15 b2cfc4e2 2003-09-30 devnull #include <string.h>

 16 b2cfc4e2 2003-09-30 devnull #include <stdlib.h>

 17 b2cfc4e2 2003-09-30 devnull #include <stdarg.h>

 18 b2cfc4e2 2003-09-30 devnull #include <fcntl.h>

 19 b2cfc4e2 2003-09-30 devnull #include <assert.h>

 20 b2cfc4e2 2003-09-30 devnull 

 21 b2cfc4e2 2003-09-30 devnull #ifndef _FMTH_

 22 b2cfc4e2 2003-09-30 devnull #	include <fmt.h>

 23 b2cfc4e2 2003-09-30 devnull #endif

 24 b2cfc4e2 2003-09-30 devnull 

 25 b2cfc4e2 2003-09-30 devnull #define	nil	((void*)0)

 26 b2cfc4e2 2003-09-30 devnull #define	nelem(x)	(sizeof(x)/sizeof((x)[0]))

 27 b2cfc4e2 2003-09-30 devnull 

 28 b2cfc4e2 2003-09-30 devnull #define _NEEDUCHAR 1

 29 b2cfc4e2 2003-09-30 devnull #define _NEEDUSHORT 1

 30 b2cfc4e2 2003-09-30 devnull #define _NEEDUINT 1

 31 b2cfc4e2 2003-09-30 devnull #define _NEEDULONG 1

 32 b2cfc4e2 2003-09-30 devnull 

 33 b2cfc4e2 2003-09-30 devnull #if defined(__linux__)

 34 b2cfc4e2 2003-09-30 devnull #	include <sys/types.h>

 35 b2cfc4e2 2003-09-30 devnull #	if defined(__USE_MISC)

 36 b2cfc4e2 2003-09-30 devnull #		undef _NEEDUSHORT

 37 b2cfc4e2 2003-09-30 devnull #		undef _NEEDUINT

 38 b2cfc4e2 2003-09-30 devnull #		undef _NEEDULONG

 39 b2cfc4e2 2003-09-30 devnull #	endif

 40 b2cfc4e2 2003-09-30 devnull #endif

 41 b2cfc4e2 2003-09-30 devnull #if defined(__FreeBSD__)

 42 b2cfc4e2 2003-09-30 devnull #	include <sys/types.h>

 43 b2cfc4e2 2003-09-30 devnull #	if !defined(_POSIX_SOURCE)

 44 b2cfc4e2 2003-09-30 devnull #		undef _NEEDUSHORT

 45 b2cfc4e2 2003-09-30 devnull #		undef _NEEDUINT

 46 b2cfc4e2 2003-09-30 devnull #	endif

 47 b2cfc4e2 2003-09-30 devnull #endif

 48 b2cfc4e2 2003-09-30 devnull 

 49 b2cfc4e2 2003-09-30 devnull typedef signed char schar;

 50 b2cfc4e2 2003-09-30 devnull typedef unsigned int u32int;

 51 b2cfc4e2 2003-09-30 devnull #ifdef _NEEDUCHAR

 52 b2cfc4e2 2003-09-30 devnull 	typedef unsigned char uchar;

 53 b2cfc4e2 2003-09-30 devnull #endif

 54 b2cfc4e2 2003-09-30 devnull #ifdef _NEEDUSHORT

 55 b2cfc4e2 2003-09-30 devnull 	typedef unsigned short ushort;

 56 b2cfc4e2 2003-09-30 devnull #endif

 57 b2cfc4e2 2003-09-30 devnull #ifdef _NEEDUINT

 58 b2cfc4e2 2003-09-30 devnull 	typedef unsigned int uint;

 59 b2cfc4e2 2003-09-30 devnull #endif

 60 b2cfc4e2 2003-09-30 devnull #ifdef _NEEDULONG

 61 b2cfc4e2 2003-09-30 devnull 	typedef unsigned long ulong;

 62 b2cfc4e2 2003-09-30 devnull #endif

 63 b2cfc4e2 2003-09-30 devnull typedef unsigned long long uvlong;

 64 b2cfc4e2 2003-09-30 devnull typedef long long vlong;

 65 b2cfc4e2 2003-09-30 devnull 

 66 b2cfc4e2 2003-09-30 devnull /* rfork to create new process running fn(arg) */

 67 b2cfc4e2 2003-09-30 devnull 

 68 b2cfc4e2 2003-09-30 devnull #if defined(__FreeBSD__)

 69 b2cfc4e2 2003-09-30 devnull #undef RFFDG

 70 b2cfc4e2 2003-09-30 devnull #undef RFNOTEG

 71 b2cfc4e2 2003-09-30 devnull #undef RFPROC

 72 b2cfc4e2 2003-09-30 devnull #undef RFMEM

 73 b2cfc4e2 2003-09-30 devnull #undef RFNOWAIT

 74 b2cfc4e2 2003-09-30 devnull #undef RFCFDG

 75 b2cfc4e2 2003-09-30 devnull #endif

 76 b2cfc4e2 2003-09-30 devnull 

 77 b2cfc4e2 2003-09-30 devnull enum

 78 b2cfc4e2 2003-09-30 devnull {

 79 b2cfc4e2 2003-09-30 devnull /*	RFNAMEG		= (1<<0), */

 80 b2cfc4e2 2003-09-30 devnull /*	RFENVG		= (1<<1), */

 81 b2cfc4e2 2003-09-30 devnull 	RFFDG		= (1<<2),

 82 b2cfc4e2 2003-09-30 devnull 	RFNOTEG		= (1<<3),

 83 b2cfc4e2 2003-09-30 devnull 	RFPROC		= (1<<4),

 84 b2cfc4e2 2003-09-30 devnull 	RFMEM		= (1<<5),

 85 b2cfc4e2 2003-09-30 devnull 	RFNOWAIT	= (1<<6),

 86 b2cfc4e2 2003-09-30 devnull /*	RFCNAMEG	= (1<<10), */

 87 b2cfc4e2 2003-09-30 devnull /*	RFCENVG		= (1<<11), */

 88 b2cfc4e2 2003-09-30 devnull 	RFCFDG		= (1<<12),

 89 b2cfc4e2 2003-09-30 devnull /*	RFREND		= (1<<13), */

 90 b2cfc4e2 2003-09-30 devnull /*	RFNOMNT		= (1<<14) */

 91 b2cfc4e2 2003-09-30 devnull };

 92 b2cfc4e2 2003-09-30 devnull extern int		ffork(int, void(*)(void*), void*);

 93 b2cfc4e2 2003-09-30 devnull 

 94 b2cfc4e2 2003-09-30 devnull /* wait for processes */

 95 b2cfc4e2 2003-09-30 devnull #define wait _p9wait

 96 b2cfc4e2 2003-09-30 devnull typedef struct Waitmsg Waitmsg;

 97 b2cfc4e2 2003-09-30 devnull struct Waitmsg

 98 b2cfc4e2 2003-09-30 devnull {

 99 b2cfc4e2 2003-09-30 devnull 	int pid;	/* of loved one */

100 b2cfc4e2 2003-09-30 devnull 	ulong time[3];	/* of loved one & descendants */

101 b2cfc4e2 2003-09-30 devnull 	char	*msg;

102 b2cfc4e2 2003-09-30 devnull };

103 b2cfc4e2 2003-09-30 devnull extern	int		await(char*, int);

104 b2cfc4e2 2003-09-30 devnull extern	Waitmsg*	wait(void);

105 b2cfc4e2 2003-09-30 devnull 

106 b2cfc4e2 2003-09-30 devnull /* synchronization */

107 b2cfc4e2 2003-09-30 devnull typedef struct Lock Lock;

108 b2cfc4e2 2003-09-30 devnull struct Lock

109 b2cfc4e2 2003-09-30 devnull {

110 b2cfc4e2 2003-09-30 devnull 	int val;

111 b2cfc4e2 2003-09-30 devnull };

112 b2cfc4e2 2003-09-30 devnull 

113 b2cfc4e2 2003-09-30 devnull extern int		_tas(void*);

114 b2cfc4e2 2003-09-30 devnull extern void	lock(Lock*);

115 b2cfc4e2 2003-09-30 devnull extern void	unlock(Lock*);

116 b2cfc4e2 2003-09-30 devnull extern int		canlock(Lock*);

117 b2cfc4e2 2003-09-30 devnull 

118 b2cfc4e2 2003-09-30 devnull typedef struct QLp QLp;

119 b2cfc4e2 2003-09-30 devnull struct QLp

120 b2cfc4e2 2003-09-30 devnull {

121 b2cfc4e2 2003-09-30 devnull 	int		inuse;

122 b2cfc4e2 2003-09-30 devnull 	QLp		*next;

123 b2cfc4e2 2003-09-30 devnull 	int		state;

124 b2cfc4e2 2003-09-30 devnull };

125 b2cfc4e2 2003-09-30 devnull 

126 b2cfc4e2 2003-09-30 devnull typedef struct QLock QLock;

127 b2cfc4e2 2003-09-30 devnull struct QLock

128 b2cfc4e2 2003-09-30 devnull {

129 b2cfc4e2 2003-09-30 devnull 	Lock	lock;

130 b2cfc4e2 2003-09-30 devnull 	int		locked;

131 b2cfc4e2 2003-09-30 devnull 	QLp		*head;

132 b2cfc4e2 2003-09-30 devnull 	QLp		*tail;

133 b2cfc4e2 2003-09-30 devnull };

134 b2cfc4e2 2003-09-30 devnull 

135 b2cfc4e2 2003-09-30 devnull extern void	qlock(QLock*);

136 b2cfc4e2 2003-09-30 devnull extern void	qunlock(QLock*);

137 b2cfc4e2 2003-09-30 devnull extern int		canqlock(QLock*);

138 b2cfc4e2 2003-09-30 devnull extern void	_qlockinit(ulong (*)(ulong, ulong));

139 b2cfc4e2 2003-09-30 devnull 

140 b2cfc4e2 2003-09-30 devnull typedef struct RWLock RWLock;

141 b2cfc4e2 2003-09-30 devnull struct RWLock

142 b2cfc4e2 2003-09-30 devnull {

143 b2cfc4e2 2003-09-30 devnull 	Lock	lock;

144 b2cfc4e2 2003-09-30 devnull 	int		readers;

145 b2cfc4e2 2003-09-30 devnull 	int		writer;

146 b2cfc4e2 2003-09-30 devnull 	QLp		*head;

147 b2cfc4e2 2003-09-30 devnull 	QLp		*tail;

148 b2cfc4e2 2003-09-30 devnull };

149 b2cfc4e2 2003-09-30 devnull 

150 b2cfc4e2 2003-09-30 devnull extern void	rlock(RWLock*);

151 b2cfc4e2 2003-09-30 devnull extern void	runlock(RWLock*);

152 b2cfc4e2 2003-09-30 devnull extern int		canrlock(RWLock*);

153 b2cfc4e2 2003-09-30 devnull extern void	wlock(RWLock*);

154 b2cfc4e2 2003-09-30 devnull extern void	wunlock(RWLock*);

155 b2cfc4e2 2003-09-30 devnull extern int		canwlock(RWLock*);

156 b2cfc4e2 2003-09-30 devnull 

157 b2cfc4e2 2003-09-30 devnull typedef struct Rendez Rendez;

158 b2cfc4e2 2003-09-30 devnull struct Rendez

159 b2cfc4e2 2003-09-30 devnull {

160 b2cfc4e2 2003-09-30 devnull 	QLock	*l;

161 b2cfc4e2 2003-09-30 devnull 	QLp		*head;

162 b2cfc4e2 2003-09-30 devnull 	QLp		*tail;

163 b2cfc4e2 2003-09-30 devnull };

164 b2cfc4e2 2003-09-30 devnull 

165 b2cfc4e2 2003-09-30 devnull extern void	rsleep(Rendez*);

166 b2cfc4e2 2003-09-30 devnull extern int		rwakeup(Rendez*);

167 b2cfc4e2 2003-09-30 devnull extern int		rwakeupall(Rendez*);

168 b2cfc4e2 2003-09-30 devnull 

169 b2cfc4e2 2003-09-30 devnull extern ulong	rendezvous(ulong, ulong);

170 b2cfc4e2 2003-09-30 devnull 

171 b2cfc4e2 2003-09-30 devnull /* one of a kind */

172 b2cfc4e2 2003-09-30 devnull extern void	sysfatal(char*, ...);

173 b2cfc4e2 2003-09-30 devnull extern int		nrand(int);

174 b2cfc4e2 2003-09-30 devnull extern void	setmalloctag(void*, ulong);

175 b2cfc4e2 2003-09-30 devnull extern void	setrealloctag(void*, ulong);

176 b2cfc4e2 2003-09-30 devnull extern void	*mallocz(ulong, int);

177 b2cfc4e2 2003-09-30 devnull extern long	readn(int, void*, long);

178 b2cfc4e2 2003-09-30 devnull extern void	exits(char*);

179 b2cfc4e2 2003-09-30 devnull extern void	_exits(char*);

180 b2cfc4e2 2003-09-30 devnull extern ulong	getcallerpc(void*);

181 b2cfc4e2 2003-09-30 devnull 

182 b2cfc4e2 2003-09-30 devnull /* string routines */

183 b2cfc4e2 2003-09-30 devnull extern char*	strecpy(char*, char*, char*);

184 b2cfc4e2 2003-09-30 devnull extern int		tokenize(char*, char**, int);

185 b2cfc4e2 2003-09-30 devnull extern int		cistrncmp(char*, char*, int);

186 b2cfc4e2 2003-09-30 devnull extern int		cistrcmp(char*, char*);

187 b2cfc4e2 2003-09-30 devnull extern char*	cistrstr(char*, char*);

188 b2cfc4e2 2003-09-30 devnull extern int		getfields(char*, char**, int, int, char*);

189 b2cfc4e2 2003-09-30 devnull extern int		gettokens(char *, char **, int, char *);

190 b2cfc4e2 2003-09-30 devnull 

191 b2cfc4e2 2003-09-30 devnull /* formatting helpers */

192 b2cfc4e2 2003-09-30 devnull extern int		dec64(uchar*, int, char*, int);

193 b2cfc4e2 2003-09-30 devnull extern int		enc64(char*, int, uchar*, int);

194 b2cfc4e2 2003-09-30 devnull extern int		dec32(uchar*, int, char*, int);

195 b2cfc4e2 2003-09-30 devnull extern int		enc32(char*, int, uchar*, int);

196 b2cfc4e2 2003-09-30 devnull extern int		dec16(uchar*, int, char*, int);

197 b2cfc4e2 2003-09-30 devnull extern int		enc16(char*, int, uchar*, int);

198 b2cfc4e2 2003-09-30 devnull extern int		encodefmt(Fmt*);

199 b2cfc4e2 2003-09-30 devnull 

200 b2cfc4e2 2003-09-30 devnull /* error string */

201 b2cfc4e2 2003-09-30 devnull enum

202 b2cfc4e2 2003-09-30 devnull {

203 b2cfc4e2 2003-09-30 devnull 	ERRMAX = 128

204 b2cfc4e2 2003-09-30 devnull };

205 b2cfc4e2 2003-09-30 devnull extern void	rerrstr(char*, uint);

206 b2cfc4e2 2003-09-30 devnull extern void	werrstr(char*, ...);

207 b2cfc4e2 2003-09-30 devnull extern int		errstr(char*, uint);

208 b2cfc4e2 2003-09-30 devnull 

209 b2cfc4e2 2003-09-30 devnull /* compiler directives on plan 9 */

210 b2cfc4e2 2003-09-30 devnull #define	USED(x)	if(x){}else{}

211 b2cfc4e2 2003-09-30 devnull #define	SET(x)	((x)=0)

212 b2cfc4e2 2003-09-30 devnull 

213 b2cfc4e2 2003-09-30 devnull /* command line */

214 b2cfc4e2 2003-09-30 devnull extern char	*argv0;

215 b2cfc4e2 2003-09-30 devnull #define	ARGBEGIN	for((argv0||(argv0=*argv)),argv++,argc--;\

216 b2cfc4e2 2003-09-30 devnull 			    argv[0] && argv[0][0]=='-' && argv[0][1];\

217 b2cfc4e2 2003-09-30 devnull 			    argc--, argv++) {\

218 b2cfc4e2 2003-09-30 devnull 				char *_args, *_argt;\

219 b2cfc4e2 2003-09-30 devnull 				Rune _argc;\

220 b2cfc4e2 2003-09-30 devnull 				_args = &argv[0][1];\

221 b2cfc4e2 2003-09-30 devnull 				if(_args[0]=='-' && _args[1]==0){\

222 b2cfc4e2 2003-09-30 devnull 					argc--; argv++; break;\

223 b2cfc4e2 2003-09-30 devnull 				}\

224 b2cfc4e2 2003-09-30 devnull 				_argc = 0;\

225 b2cfc4e2 2003-09-30 devnull 				while(*_args && (_args += chartorune(&_argc, _args)))\

226 b2cfc4e2 2003-09-30 devnull 				switch(_argc)

227 b2cfc4e2 2003-09-30 devnull #define	ARGEND		SET(_argt);USED(_argt);USED(_argc);USED(_args);}USED(argv);USED(argc);

228 b2cfc4e2 2003-09-30 devnull #define	ARGF()		(_argt=_args, _args="",\

229 b2cfc4e2 2003-09-30 devnull 				(*_argt? _argt: argv[1]? (argc--, *++argv): 0))

230 b2cfc4e2 2003-09-30 devnull #define	EARGF(x)	(_argt=_args, _args="",\

231 b2cfc4e2 2003-09-30 devnull 				(*_argt? _argt: argv[1]? (argc--, *++argv): ((x), abort(), (char*)0)))

232 b2cfc4e2 2003-09-30 devnull 

233 b2cfc4e2 2003-09-30 devnull #define	ARGC()		_argc

234 b2cfc4e2 2003-09-30 devnull 

235 b2cfc4e2 2003-09-30 devnull #define OREAD O_RDONLY

236 b2cfc4e2 2003-09-30 devnull #define OWRITE O_WRONLY

237 b2cfc4e2 2003-09-30 devnull #define AEXIST 0

238 b2cfc4e2 2003-09-30 devnull #define AREAD 4

239 b2cfc4e2 2003-09-30 devnull #define AWRITE 2

240 b2cfc4e2 2003-09-30 devnull #define AEXEC 1

241 b2cfc4e2 2003-09-30 devnull 

242 b2cfc4e2 2003-09-30 devnull #if defined(__cplusplus)

243 b2cfc4e2 2003-09-30 devnull }

244 b2cfc4e2 2003-09-30 devnull #endif

245 b2cfc4e2 2003-09-30 devnull 

246 b2cfc4e2 2003-09-30 devnull #endif	/* _LIB9H_ */