Import sources from 2011-03-30 iso image

1 files changed, 72 insertions, 0 deletions

diff --git a/sys/src/ape/lib/ap/plan9/lib.h b/sys/src/ape/lib/ap/plan9/lib.h
new file mode 100755
index 000000000..91a51d5d3
--- /dev/null
+++ b/sys/src/ape/lib/ap/plan9/lib.h
@@ -0,0 +1,72 @@
+#include <sys/types.h>
+#include <sys/limits.h>
+#include <fcntl.h>
+#include <ureg.h>
+
+typedef struct Ureg Ureg;
+
+/* mux buf for selecting (see _buf.c) */
+enum {
+	READMAX = 8192,			/* read at most this much with _READ */
+	PERFDMAX = 2*READMAX,		/* stop _READing an fd when it has this much */
+	INITBUFS = 4,			/* allow enough room for this many PERFDMAX */
+};
+
+typedef struct Muxbuf {
+	int n;				/* # unprocessed chars in buf */
+	unsigned char*	putnext;	/* place for copy process to put next data */
+	unsigned char*	getnext;	/* place for parent process to get next data */
+	char		fd;		/* fd for which this is a buffer */
+	unsigned char	eof;		/* true if eof after current data exhausted */
+	unsigned char	roomwait;	/* true if copy process is waiting for room */
+	unsigned char	datawait;	/* true if parent process is waiting for data */
+	int		copypid;	/* pid of copyproc */
+	unsigned char	data[PERFDMAX];
+} Muxbuf;
+
+/* be sure to change _fdinfo[] init in _fdinfo if you change this */
+typedef struct Fdinfo{
+	unsigned long	flags;
+	unsigned long	oflags;
+	uid_t	uid;
+	gid_t	gid;	
+	char		*name;
+	/*
+	 * the following is used if flags&FD_BUFFERED
+	 */
+	Muxbuf	*buf;	/* holds buffered data and state */
+} Fdinfo;
+
+/* #define FD_CLOEXEC 1 is in fcntl.h */
+
+#define FD_ISOPEN	0x2
+#define FD_BUFFERED	0x4
+#define FD_BUFFEREDX	0x8
+#define FD_ISTTY	0x20
+
+#define MAXSIG SIGUSR2
+
+extern Fdinfo	_fdinfo[];
+
+extern int	_finishing;
+extern int	_sessleader;
+extern void	(*_sighdlr[])(int, char*, Ureg*);
+extern char	*_sigstring(int);
+extern int	_stringsig(char *);
+extern long	_psigblocked;
+extern int	_startbuf(int);
+extern int	_selbuf(int);
+extern void	_closebuf(int);
+extern int _readbuf(int, void*, int, int);
+extern void	_detachbuf(void);
+extern void	_finish(int, char *);
+extern char	*_ultoa(char *, unsigned long);
+extern int	_notehandler(void *, char *);
+extern void	_notetramp(int, void (*)(int, char*, Ureg*), Ureg*);
+extern void	_syserrno(void);
+extern int	_getpw(int *, char **, char **);
+extern int _isatty(int);
+extern void _fdinit(char*, char*);
+
+
+void checkbug(char *, int);