mirror of
https://github.com/RTimothyEdwards/magic.git
synced 2026-08-29 17:39:28 +02:00
Tim Edwards
075262b2ef
supported). Fixed the long-standing issue in which DRC does not get stopped by the "drc off" command (the behavior for interrupting the DRC was dependent on the DRC being turned on, and the "drc off" command was turning it off before breaking, causing the interrupt to be ignored).
245 lines
6.8 KiB
C
245 lines
6.8 KiB
C
/*
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* magic.h --
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*
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* Global definitions for all MAGIC modules
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*
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* *********************************************************************
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* * Copyright (C) 1985, 1990 Regents of the University of California. *
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* * Permission to use, copy, modify, and distribute this *
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* * software and its documentation for any purpose and without *
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* * fee is hereby granted, provided that the above copyright *
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* * notice appear in all copies. The University of California *
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* * makes no representations about the suitability of this *
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* * software for any purpose. It is provided "as is" without *
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* * express or implied warranty. Export of this software outside *
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* * of the United States of America may require an export license. *
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* *********************************************************************
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*
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* rcsid="$Header"
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*/
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#ifndef _MAGIC_H
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#define _MAGIC_H
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#include <errno.h>
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#include <limits.h>
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#include <stdint.h>
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#ifdef HAVE_ZLIB
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#include <zlib.h>
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#endif
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/* ------------------- Universal pointer typecast --------------------- */
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/* Set default value for backwards compatibility with non-autoconf make */
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#ifndef SIZEOF_VOID_P
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#define SIZEOF_VOID_P SIZEOF_UNSIGNED_INT
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#endif
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#if SIZEOF_VOID_P == SIZEOF_UNSIGNED_INT
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typedef unsigned int pointertype;
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typedef signed int spointertype;
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#elif SIZEOF_VOID_P == SIZEOF_UNSIGNED_LONG
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typedef unsigned long pointertype;
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typedef signed long spointertype;
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#else
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ERROR: Cannot compile without knowing the size of a pointer. See utils/magic.h
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#endif
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typedef int64_t dlong;
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#define DLONG_MAX INT64_MAX
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#define DLONG_MIN INT64_MIN
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#define DLONG_PREFIX "ll"
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/* --------------------- Universal pointer type ----------------------- */
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#ifndef _CLIENTDATA
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typedef pointertype ClientData;
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#endif
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/* --------------------------- Booleans ------------------------------- */
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typedef unsigned char bool;
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#ifndef TRUE
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#define TRUE ((bool)1)
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#endif
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#ifndef FALSE
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#define FALSE ((bool)0)
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#endif
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/* ----------------------- Simple functions --------------------------- */
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#ifndef MAX
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#define MAX(a,b) (((a) < (b)) ? (b) : (a))
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#endif
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#ifndef MIN
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#define MIN(a,b) (((a) > (b)) ? (b) : (a))
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#endif
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#define ABS(x) (((x) >= 0) ? (x) : -(x))
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#define ABSDIFF(x,y) (((x) < (y)) ? (y) - (x) : (x) - (y))
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#define ODD(i) (i&1)
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#define EVEN(i) (!(i&1))
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/*----------------------------------------------------------------------*/
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/* Round to nearest integer---use c99 functions if available from the */
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/* math library (checked by "configure"), otherwise use the macro */
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/* definitions below. */
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/*----------------------------------------------------------------------*/
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#ifndef HAVE_ROUND
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#define round(a) (((a) < 0) ? (int)((a) - 0.5) : (int)((a) + 0.5))
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#endif
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#ifndef HAVE_ROUNDF
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#define roundf(x) ((float)((int)((float)(x) + ((x < 0) ? -0.5 : 0.5))))
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#endif
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/* -------------------------- Search paths ---------------------------- */
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extern char *CellLibPath; /* Path for finding cells. */
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extern char *SysLibPath; /* Path for finding system
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* files like color maps, styles, etc.
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*/
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/* --------------------- Debugging and assertions --------------------- */
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/* To enable assertions, undefine NDEBUG in file defs.mak */
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#include <assert.h>
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#define ASSERT(p, where) assert(p) /* "where" is ignored */
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/* ------------------------ Malloc/free ------------------------------- */
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/*
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* Magic has its own versions of malloc() and free(), called mallocMagic()
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* and freeMagic(). Magic procedures should ONLY use these procedures.
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* Just for the sake of robustness, though, we define malloc and free
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* here to error strings.
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*/
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#define malloc You_should_use_the_Magic_procedure_mallocMagic_instead
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#define free You_should_use_the_Magic_procedure_freeMagic_instead
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#define calloc You_should_use_the_Magic_procedure_callocMagic_instead
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/* ---------- Flag for global variables (for readability) ------------- */
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#define global /* Nothing */
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/* ------------ Globally-used strings. -------------------------------- */
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extern char *MagicVersion;
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extern char *MagicRevision;
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extern char *MagicCompileTime;
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extern char AbortMessage[];
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/* ------------ zlib (compression) support -------------------------------- */
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#ifdef HAVE_ZLIB
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#define FOPEN gzopen
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#define FCLOSE gzclose
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#define FGETC gzgetc
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#define FREAD(a,b,c,d) gzread(d,a,b*c)
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#define FEOF gzeof
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#define FSEEK gzseek
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#define FTELL gztell
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#define REWIND gzrewind
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#define FILETYPE gzFile
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#define OFFTYPE z_off_t
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#else
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#define FOPEN fopen
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#define FCLOSE fclose
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#define FGETC getc
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#define FREAD fread
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#define FEOF feof
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#define FSEEK fseek
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#define FTELL ftello
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#define REWIND rewind
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#define FILETYPE FILE *
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#define OFFTYPE off_t
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#define PaZOpen PaOpen
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#define PaLockZOpen PaLockOpen
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#endif
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/* ---------------- Start of Machine Configuration Section ----------------- */
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/* ------- Configuration: Handle Missing Routines/Definitions ------- */
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/* System V is missing some BSDisms. */
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#ifdef SYSV
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# ifndef bcopy
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# define bcopy(a, b, c) memcpy(b, a, c)
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# endif
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# ifndef bzero
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# define bzero(a, b) memset(a, 0, b)
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# endif
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# ifndef bcmp
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# define bcmp(a, b, c) memcmp(b, a, c)
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# endif
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#endif
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/* Some machines need vfprintf(). (A temporary MIPS bug?) (see txOutput.c) */
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#if (defined(MIPSEB) && defined(SYSTYPE_BSD43)) || ibm032
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# define NEED_VFPRINTF
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#endif
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/* Some machines expect signal handlers to return an "int". But most machines
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* expect them to return a "void". If your machine expects an "int", put in
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* an "ifdef" below.
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*/
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#if (defined(MIPSEB) && defined(SYSTYPE_BSD43)) || ibm032
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# define SIG_RETURNS_INT
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#endif
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/*
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* Linux
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*/
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#ifdef linux
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#define sigvec sigaction
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#define sv_handler sa_handler
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#endif
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/*
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* Irix
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*/
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#ifdef sgi
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#define vfork fork
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#endif
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/*
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* Select system call
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*
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* Note: Errors here may be caused by not including <sys/types.h>
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* before "magic.h" (deprecated; more modern usage is <sys/select.h>
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*/
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#include <sys/select.h>
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#ifndef FD_SET
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#define fd_set int
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#define FD_SET(n, p) ((*(p)) |= (1 << (n)))
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#define FD_CLR(n, p) ((*(p)) &= ~(1 << (n)))
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#define FD_ISSET(n, p) ((*(p)) & (1 << (n)))
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#define FD_ZERO(p) (*(p) = 0)
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#endif
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/*
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* Handling of VA_COPY. These variables are set by the configuration
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* script. Some systems define va_copy, some define __va_copy, and
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* some don't define it at all. It is assumed that systems which do
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* not define it at all allow arguments to be copied with "=".
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*/
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#ifndef HAVE_VA_COPY
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#ifdef HAVE___VA_COPY
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#define va_copy(a, b) __va_copy(a, b)
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#else
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#define va_copy(a, b) a = b
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#endif
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#endif
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/* ------------------ End of Machine Configuration Section ----------------- */
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#endif /* _MAGIC_H */
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