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yap-6.3/packages/PLStream/pl-os.h
2009-02-16 17:19:43 +00:00

256 lines
6.4 KiB
C

/* $Id$
Part of SWI-Prolog
Author: Jan Wielemaker
E-mail: jan@swi.psy.uva.nl
WWW: http://www.swi-prolog.org
Copyright (C): 1985-2002, University of Amsterdam
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#if TIME_WITH_SYS_TIME
# include <sys/time.h>
# include <time.h>
#else
# if HAVE_SYS_TIME_H
# include <sys/time.h>
# else
# include <time.h>
# endif
#endif
#ifdef HAVE_SYS_PARAM_H /* get MAXPATHLEN */
#include <sys/param.h>
#endif
/********************************
* MEMORY MANAGEMENT *
*********************************/
extern void *Allocate(intptr_t);
/********************************
* MISCELLANEOUS *
*********************************/
extern char *OsError(void);
extern bool initOs(void);
/********************************
* FILES *
*********************************/
#ifndef STREAM_OPEN_BIN_READ
#define STREAM_OPEN_BIN_READ "rb"
#endif
#ifndef STREAM_OPEN_BIN_WRITE
#define STREAM_OPEN_BIN_WRITE "wb"
#endif
#ifdef HAVE_POPEN
#define PIPE 1
#define Popen(path, m) Sopen_pipe(OsPath(path), m)
#define Pclose(fd) pclose(fd)
#endif
#ifndef MAXPATHLEN
#ifdef PATH_MAX
#define MAXPATHLEN PATH_MAX
#else
#ifdef PATHSIZE
#define MAXPATHLEN PATHSIZE
#endif
#endif
#endif
#define Fflush(fd) Sflush(fd)
#define Fclose(fd) Sclose(fd)
#define Open(path, how, mode) open(OsPath(path), how, mode)
#define Read(fd, buf, size) read(fd, buf, size)
#define Write(fd, buf, size) write(fd, buf, size)
#define Getc(fd) Sgetc(fd)
#define Putw(w, fd) Sputw((intptr_t)(w), fd)
#define Getw(fd) Sgetw(fd)
/*******************************
* PAGE AND TABLE-SIZE *
*******************************/
#ifdef HAVE_SYSCONF
#if defined(_SC_OPEN_MAX) && !defined(HAVE_GETPAGESIZE)
#undef getdtablesize
#define getdtablesize() sysconf(_SC_OPEN_MAX)
#ifndef HAVE_GETDTABLESIZE
#define HAVE_GETDTABLESIZE 1
#endif
#endif
#if defined(_SC_PAGESIZE) && !defined(HAVE_GETPAGESIZE)
#undef getpagesize
#define getpagesize() sysconf(_SC_PAGESIZE)
#ifndef HAVE_GETPAGESIZE
#define HAVE_GETPAGESIZE 1
#endif
#endif
#endif /*HAVE_SYSCONF*/
#ifndef HAVE_GETDTABLESIZE
extern int getdtablesize(void);
#endif
#ifndef HAVE_GETPAGESIZE
extern int getpagesize(void);
#endif
/*******************************
* FILE ACCESS *
*******************************/
#define ACCESS_EXIST 0
#define ACCESS_EXECUTE 1
#define ACCESS_READ 2
#define ACCESS_WRITE 4
/********************************
* TIME CONVERSION *
*********************************/
typedef enum
{ CPU_USER,
CPU_SYSTEM
} cputime_kind;
extern double CpuTime(cputime_kind);
extern double WallTime(void);
/*******************************
* MEMORY *
*******************************/
extern uintptr_t UsedMemory(void);
extern uintptr_t FreeMemory(void);
/********************************
* IOSTREAM DESCR. SETS *
********************************/
#if !defined(FD_ZERO) && !defined(__WINDOWS__)
#ifdef HAVE_SYS_SELECT_H
#include <sys/select.h>
#else
#define FD_ZERO(s) { *((uintptr_t *)(s)) = (0L); }
#define FD_SET(fd, s) { *((uintptr_t *)(s)) |= ((uintptr_t)L << (fd)); }
#define FD_ISSET(fd, s) ( (*((uintptr_t *)(s)) & ((uintptr_t)L << (fd))) != 0 )
#endif
#endif
/********************************
* TERMINAL CONTROL *
*********************************/
#define TTY_COOKED 1 /* Initial mode: echo */
#define TTY_RAW 2 /* Non-blocking, non-echo */
#define TTY_OUTPUT 3 /* enable post-processing */
#define TTY_SAVE 4 /* just save status */
#ifdef HAVE_TCSETATTR
#include <termios.h>
#include <unistd.h>
#define O_HAVE_TERMIO 1
#else /*HAVE_TCSETATTR*/
#ifdef HAVE_SYS_TERMIO_H
#include <sys/termio.h>
#define termios termio
#define O_HAVE_TERMIO 1
#else
#ifdef HAVE_SYS_TERMIOS_H
#include <sys/termios.h>
#define O_HAVE_TERMIO 1
#endif
#endif
#endif /*HAVE_TCSETATTR*/
#ifdef O_HAVE_TERMIO
typedef struct
{ struct termios tab; /* saved tty status */
int mode; /* Prolog;'s view on mode */
} ttybuf;
#else /* !O_HAVE_TERMIO */
#ifdef HAVE_SGTTYB
#include <sys/ioctl.h>
typedef struct
{ struct sgttyb tab; /* saved tty status */
int mode; /* Prolog;'s view on mode */
} ttybuf;
#else
typedef struct
{ int mode; /* Prolog;'s view on mode */
} ttybuf;
#endif /*HAVE_SGTTYB*/
#endif /*O_HAVE_TERMIO*/
extern ttybuf ttytab; /* saved tty status */
extern int ttymode; /* Current tty mode */
#define IsaTty(fd) isatty(fd)
extern bool PushTty(IOSTREAM *s, ttybuf *, int mode);
extern bool PopTty(IOSTREAM *s, ttybuf *);
extern void ResetTty(void);
/********************************
* PROCESS CONTROL *
*********************************/
extern int System(char *command);
extern char *ExpandOneFile(const char *spec, char *file);
extern char *AbsoluteFile(const char *spec, char *path);
extern int IsAbsolutePath(const char *spec);
extern char *ReadLink(const char *f, char *buf);
extern char *DeRefLink(const char *link, char *buf);
extern bool ExistsDirectory(const char *path);
extern bool AccessFile(const char *path, int mode);
extern bool AccessFile(const char *path, int mode);
extern char *OsPath(const char *plpath, char *path);
extern char *Getenv(const char *, char *buf, size_t buflen);
extern char *BaseName(const char *f);
extern intptr_t LastModifiedFile(char *f);
extern int64_t SizeFile(const char *path);
extern bool ExistsFile(const char *path);
extern atom_t TemporaryFile(const char *id);
extern int RemoveFile(const char *path);
extern bool SameFile(const char *f1, const char *f2);
extern bool RenameFile(const char *old, const char *new);
extern bool ChDir(const char *path);
extern bool MarkExecutable(const char *name);
extern char *PrologPath(const char *ospath, char *path, size_t len);