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yap-6.3/os/iopreds.h

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C
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/**************************************************************************
* *
* File: iopreds.h *
* Last rev: 5/2/88 *
* mods: *
* comments: Input/Output C implemented predicates *
* *
*************************************************************************/
#ifndef IOPREDS_H
#define IOPREDS_H 1
#include "Atoms.h"
#include "Yap.h"
#include <stdlib.h>
#if defined(_MSC_VER) || defined(__MINGW32__)
#include <windows.h>
#endif
#include <wchar.h>
#include "YapStreams.h"
INLINE_ONLY UInt PRED_HASH(FunctorEntry *, Term, UInt);
INLINE_ONLY bool IsStreamTerm(Term t) {
return !IsVarTerm(t) &&
(IsAtomTerm(t) ||
(IsApplTerm(t) && (FunctorOfTerm(t) == FunctorStream)));
}
extern bool Yap_initStream(int sno, FILE *fd, const char *name, const char *io_mode, Term file_name, encoding_t encoding,
stream_flags_t flags, void *vfs);
#define Yap_CheckStream(arg, kind, msg) \
Yap_CheckStream__(__FILE__, __FUNCTION__, __LINE__, arg, kind, msg)
extern int Yap_CheckStream__(const char *, const char *, int, Term, int,
const char *);
#define Yap_CheckTextStream(arg, kind, msg) \
Yap_CheckTextStream__(__FILE__, __FUNCTION__, __LINE__, arg, kind, msg)
extern int Yap_CheckTextStream__(const char *, const char *, int, Term, int,
const char *);
#define Yap_CheckTextReadStream(arg, msg) \
Yap_CheckTextReadStream__(__FILE__, __FUNCTION__, __LINE__, arg, msg)
extern int Yap_CheckTextReadStream__(const char *, const char *, int, Term,
const char *);
#define Yap_CheckTextWriteStream(arg, msg) \
Yap_CheckTextWriteStream__(__FILE__, __FUNCTION__, __LINE__, arg, msg)
extern int Yap_CheckTextWriteStream__(const char *, const char *, int, Term,
const char *);
#define Yap_CheckBinaryStream(arg, kind, msg) \
Yap_CheckBinaryStream__(__FILE__, __FUNCTION__, __LINE__, arg, kind, msg)
extern int Yap_CheckBinaryStream__(const char *, const char *, int, Term, int,
const char *);
static inline StreamDesc *Yap_GetStreamHandle(Term t) {
int sno = Yap_CheckStream(t, 0, "stream search");
if (sno < 0)
return NULL;
return GLOBAL_Stream + sno;
}
#include "VFS.h"
/*
* This file defines main data-structure for stream management,
*
*/
extern size_t Yap_page_size;
#if HAVE_SOCKET
extern int Yap_sockets_io;
extern Term Yap_InitSocketStream(int, socket_info, socket_domain);
extern int Yap_CheckSocketStream(Term, const char *);
extern socket_domain Yap_GetSocketDomain(int);
extern socket_info Yap_GetSocketStatus(int);
extern void Yap_UpdateSocketStream(int, socket_info, socket_domain);
/* routines in ypsocks.c */
Int Yap_CloseSocket(int, socket_info, socket_domain);
#endif /* USE_SOCKET */
extern bool Yap_clearInput(int sno);
extern Term Yap_read_term(int inp_stream, Term opts, bool clause);
extern Term Yap_Parse(UInt prio, encoding_t enc, Term cmod);
extern void init_read_data(ReadData _PL_rd, struct stream_desc *s);
typedef int (*GetsFunc)(int, UInt, char *);
extern void Yap_InitStdStreams(void);
extern Term Yap_StreamPosition(int);
extern void Yap_CloseStream(int sno);
static inline Int GetCurInpLine(StreamDesc *inp_stream) {
return (inp_stream->linecount);
}
static inline Int GetCurInpPos(StreamDesc *inp_stream) {
return (inp_stream->charcount);
}
extern bool Yap_SetCurInpPos(int sno, Int pos USES_REGS);
#define PlIOError(type, culprit, ...) \
PlIOError__(__FILE__, __FUNCTION__, __LINE__, type, culprit, __VA_ARGS__)
extern Int PlIOError__(const char *, const char *, int, yap_error_number, Term,
...);
extern int GetFreeStreamD(void);
extern Term Yap_MkStream(int n);
extern bool Yap_PrintWarning(Term twarning);
extern void Yap_plwrite(Term, struct stream_desc *, int, int, int);
extern void Yap_WriteAtom(struct stream_desc *s, Atom atom);
extern bool Yap_WriteTerm(int output_stream, Term t, Term opts USES_REGS);
extern Term Yap_scan_num(struct stream_desc *, bool);
extern void Yap_DefaultStreamOps(StreamDesc *st);
extern void Yap_PipeOps(StreamDesc *st);
extern void Yap_MemOps(StreamDesc *st);
extern bool Yap_CloseMemoryStream(int sno);
extern void Yap_ConsolePipeOps(StreamDesc *st);
extern void Yap_SocketOps(StreamDesc *st);
extern void Yap_ConsoleSocketOps(StreamDesc *st);
extern bool Yap_ReadlineOps(StreamDesc *st);
extern int Yap_OpenBufWriteStream(USES_REGS1);
extern void Yap_ConsoleOps(StreamDesc *s);
extern void Yap_InitRandomPreds(void);
extern void Yap_InitSignalPreds(void);
extern void Yap_InitTimePreds(void);
extern void Yap_init_socks(char *host, long interface_port);
extern void Yap_InitPipes(void);
extern void Yap_InitMem(void);
extern void Yap_InitSockets(void);
extern void Yap_InitSocketLayer(void);
extern void Yap_InitMems(void);
extern void Yap_InitConsole(void);
extern void Yap_InitReadlinePreds(void);
extern bool Yap_InitReadline(Term);
extern bool Yap_readline_clear_pending_input(StreamDesc *s);
extern void Yap_InitChtypes(void);
extern void Yap_InitCharsio(void);
extern void Yap_InitFormat(void);
extern void Yap_InitFiles(void);
extern void Yap_InitIOStreams(void);
extern void Yap_InitWriteTPreds(void);
extern void Yap_InitReadTPreds(void);
extern void Yap_socketStream(StreamDesc *s);
extern void Yap_ReadlineFlush(int sno);
extern int Yap_ReadlinePeekChar(int sno);
extern int Yap_ReadlineForSIGINT(void);
extern bool Yap_DoPrompt(StreamDesc *s);
extern int Yap_peek(int sno);
extern int Yap_MemPeekc(int sno);
extern int Yap_popChar(int sno);
extern int Yap_peekWithGetc(int sno);
extern int Yap_peekWideWithGetwc(int sno);
extern int Yap_peekWideWithSeek(int sno);
extern int Yap_peekWithSeek(int sno);
extern int Yap_peekWide(int sno);
extern int Yap_peekChar(int sno);
extern Term Yap_syntax_error(TokEntry *tokptr, int sno);
extern int console_post_process_read_char(int, StreamDesc *);
extern int console_post_process_eof(StreamDesc *);
extern int post_process_read_wchar(int, size_t, StreamDesc *);
extern int post_process_weof(StreamDesc *);
extern bool is_same_tty(FILE *f1, FILE *f2);
extern int ISOWGetc(int sno);
extern int GetUTF8(int sno);
extern Term read_line(int sno);
extern int PlGets(int sno, UInt size, char *buf);
extern GetsFunc PlGetsFunc(void);
extern int PlGetc(int sno);
extern int FilePutc(int sno, int c);
extern int DefaultGets(int, UInt, char *);
extern int put_wchar(int sno, wchar_t ch);
extern Int GetStreamFd(int sno);
extern int ResetEOF(StreamDesc *s);
extern int EOFPeek(int sno);
extern int EOFWPeek(int sno);
extern void Yap_SetAlias(Atom arg, int sno);
extern bool Yap_AddAlias(Atom arg, int sno);
extern int Yap_CheckAlias(Atom arg);
extern int Yap_RemoveAlias(Atom arg, int snoinline);
extern void Yap_SetAlias(Atom arg, int sno);
extern void Yap_InitAliases(void);
extern void Yap_DeleteAliases(int sno);
extern bool Yap_FindStreamForAlias(Atom al);
extern bool Yap_FetchStreamAlias(int sno, Term t2 USES_REGS);
INLINE_ONLY void count_output_char(int ch, StreamDesc *s);
extern Term Yap_StreamUserName(int sno);
INLINE_ONLY void count_output_char(int ch, StreamDesc *s) {
if (ch == '\n') {
#if MPWSHELL
if (mpwshell && (sno == StdOutStream || sno == StdErrStream) &&
!(s->status & Null_Stream_f)) {
putc(MPWSEP, s->file);
if (!(GLOBAL_Stream[LOCAL_output_stream].status & Null_Stream_f))
fflush(stdout);
}
#endif
/* Inform that we have written a newline */
++s->charcount;
++s->linecount;
s->linepos = 0;
} else {
#if MAC
if ((sno == StdOutStream || sno == StdErrStream) && s->linepos > 200)
sno->stream_putc(sno, '\n');
#endif
++s->charcount;
++s->linepos;
}
}
inline static Term StreamName(int i) { return (GLOBAL_Stream[i].user_name); }
inline static Atom StreamFullName(int i) { return (Atom)(GLOBAL_Stream[i].name); }
inline static void console_count_output_char(int ch, StreamDesc *s) {
CACHE_REGS
if (ch == '\n') {
#if MPWSHELL
if (mpwshell && (sno == StdOutStream || sno == StdErrStream) &&
!(s->status & Null_Stream_f)) {
putc(MPWSEP, s->file);
if (!(GLOBAL_Stream[LOCAL_output_stream].status & Null_Stream_f))
fflush(stdout);
}
#endif
++s->charcount;
++s->linecount;
s->linepos = 0;
LOCAL_newline = TRUE;
/* Inform we are not at the start of a newline */
} else {
LOCAL_newline = FALSE;
#if MAC
if ((sno == StdOutStream || sno == StdErrStream) && s->linepos > 200)
sno->stream_putc(sno, '\n');
#endif
++s->charcount;
++s->linepos;
}
}
inline static Term StreamPosition(int sno) {
CACHE_REGS
Term sargs[5];
Int cpos;
cpos = GLOBAL_Stream[sno].charcount;
sargs[0] = MkIntegerTerm(LOCAL_StartCharCount = cpos);
sargs[1] = MkIntegerTerm(LOCAL_StartLineCount = GLOBAL_Stream[sno].linecount);
sargs[2] = MkIntegerTerm(LOCAL_StartLinePos = GLOBAL_Stream[sno].linepos);
sargs[3] = sargs[4] = MkIntTerm(0);
return Yap_MkApplTerm(FunctorStreamPos, 5, sargs);
}
inline static Term CurrentPositionToTerm(void) {
CACHE_REGS
Term sargs[5];
sargs[0] = MkIntegerTerm(LOCAL_StartCharCount);
sargs[1] = MkIntegerTerm(LOCAL_StartLineCount);
sargs[2] = MkIntegerTerm(LOCAL_StartLinePos);
sargs[3] = sargs[4] = MkIntTerm(0);
return Yap_MkApplTerm(FunctorStreamPos, 5, sargs);
}
char *Yap_MemExportStreamPtr(int sno);
static inline void freeBuffer(const void *ptr) {
CACHE_REGS
if (ptr == NULL || ptr == LOCAL_FileNameBuf || ptr == LOCAL_FileNameBuf2 ||
ptr == AuxBase)
return;
free((void *)ptr);
}
#endif
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