mirror of
https://git.code.sf.net/p/quake/quakeforge
synced 2024-11-06 13:11:20 +00:00
acd54afff7
ranges can be used efficiently. move the auto-allocated builtins to
0x10000000-0x7fffffff. should be more than enough :)
use static builtin tables ("nul" terminated) instead of a series of
function calls to add builtins to a vm. should be more memory efficient.
171 lines
3.2 KiB
C
171 lines
3.2 KiB
C
/*
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#FILENAME#
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#DESCRIPTION#
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Copyright (C) 2001 #AUTHOR#
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Author: #AUTHOR#
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Date: #DATE#
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to:
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Free Software Foundation, Inc.
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59 Temple Place - Suite 330
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Boston, MA 02111-1307, USA
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*/
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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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static __attribute__ ((unused)) const char rcsid[] =
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"$Id$";
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <unistd.h>
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#include <errno.h>
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#include <string.h>
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#include <QF/dstring.h>
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#include <QF/progs.h>
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#include <QF/zone.h>
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#include "qwaq.h"
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static void
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bi_print (progs_t *pr)
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{
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const char *str;
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str = P_GSTRING (pr, 0);
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fprintf (stdout, "%s", str);
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}
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static void
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bi_errno (progs_t *pr)
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{
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R_INT (pr) = errno;
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}
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static void
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bi_strerror (progs_t *pr)
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{
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int err = P_INT (pr, 0);
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RETURN_STRING (pr, strerror (err));
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}
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static void
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bi_open (progs_t *pr)
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{
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const char *path = P_GSTRING (pr, 0);
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int flags = P_INT (pr, 1);
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int mode = P_INT (pr, 2);
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R_INT (pr) = open (path, flags, mode);
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}
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static void
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bi_close (progs_t *pr)
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{
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int handle = P_INT (pr, 0);
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R_INT (pr) = close (handle);
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}
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static void
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bi_read (progs_t *pr)
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{
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int handle = P_INT (pr, 0);
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int count = P_INT (pr, 1);
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int *read_result = (int *)P_GPOINTER (pr, 2);
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int res;
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char *buffer;
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buffer = Hunk_TempAlloc (count);
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if (!buffer)
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PR_Error (pr, "%s: couldn't allocate %d bytes", "bi_read", count);
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res = read (handle, buffer, count);
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if (res != -1)
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RETURN_STRING (pr, buffer);
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*read_result = res;
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}
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static void
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bi_write (progs_t *pr)
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{
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int handle = P_INT (pr, 0);
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const char *buffer = P_GSTRING (pr, 1);
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int count = P_INT (pr, 2);
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R_INT (pr) = write (handle, buffer, count);
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}
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static void
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bi_seek (progs_t *pr)
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{
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int handle = P_INT (pr, 0);
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int pos = P_INT (pr, 1);
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int whence = P_INT (pr, 2);
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R_INT (pr) = lseek (handle, pos, whence);
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}
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static void
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bi_traceon (progs_t *pr)
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{
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pr->pr_trace = true;
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}
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static void
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bi_traceoff (progs_t *pr)
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{
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pr->pr_trace = false;
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}
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static void
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bi_printf (progs_t *pr)
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{
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const char *fmt = P_GSTRING (pr, 0);
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int count = pr->pr_argc - 1;
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pr_type_t **args = pr->pr_params + 1;
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dstring_t *dstr = dstring_new ();
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PR_Sprintf (pr, dstr, "bi_printf", fmt, count, args);
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if (dstr->str)
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fputs (dstr->str, stdout);
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dstring_delete (dstr);
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}
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static builtin_t builtins[] = {
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{"print", bi_print, 1},
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{"errno", bi_errno, 3},
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{"strerror", bi_strerror, 4},
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{"open", bi_open, 5},
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{"close", bi_close, 6},
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{"read", bi_read, 7},
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{"write", bi_write, 8},
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{"seek", bi_seek, 9},
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{"traceon", bi_traceon, 10},
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{"traceoff", bi_traceoff, 11},
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{"printf", bi_printf, 12},
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{0}
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};
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void
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BI_Init (progs_t *pr)
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{
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PR_RegisterBuiltins (pr, builtins);
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}
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