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Publish the maximum number of port types as `SCM_I_MAX_PORT_TYPE_COUNT'.

Browse source 
* libguile/goops.c (create_port_classes): Use
  `SCM_I_MAX_PORT_TYPE_COUNT' instead of a hard-wired 256.

* libguile/objects.h (SCM_OUT_PCLASS_INDEX, SCM_INOUT_PCLASS_INDEX):
  Likewise.

* libguile/ports.c (scm_make_port_type): Likewise.

* libguile/ports.h (SCM_I_MAX_PORT_TYPE_COUNT): New macro.
This commit is contained in:
Ludovic Courtès 2009-01-18 18:47:20 +01:00
parent 474554694f
commit 0953b54946
4 changed files with 14 additions and 10 deletions
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7
libguile/goops.c
View file

@ -2741,9 +2741,10 @@ create_port_classes (void)
{
long i;
scm_port_class = (SCM *) scm_malloc (3 * 256 * sizeof (SCM));
for (i = 0; i < 3 * 256; ++i)
scm_port_class[i] = 0;
/* Allocate 3 times the maximum number of port types so that input ports,
output ports, and in/out ports can be stored at different offsets. See
`SCM_IN_PCLASS_INDEX' et al. */
scm_port_class = scm_calloc (3 * SCM_I_MAX_PORT_TYPE_COUNT * sizeof (SCM));
for (i = 0; i < scm_numptob; ++i)
scm_make_port_classes (i, SCM_PTOBNAME (i));

8
libguile/objects.h
View file

@ -3,7 +3,7 @@
#ifndef SCM_OBJECTS_H
#define SCM_OBJECTS_H
/* Copyright (C) 1996,1999,2000,2001, 2003, 2006, 2008 Free Software Foundation, Inc.
/* Copyright (C) 1996,1999,2000,2001, 2003, 2006, 2008, 2009 Free Software Foundation, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
@ -171,9 +171,9 @@ typedef struct scm_effective_slot_definition {
#define SCM_CMETHOD_ENV(cmethod) SCM_CAR (cmethod)
/* Port classes */
#define SCM_IN_PCLASS_INDEX 0x000
#define SCM_OUT_PCLASS_INDEX 0x100
#define SCM_INOUT_PCLASS_INDEX 0x200
#define SCM_IN_PCLASS_INDEX 0
#define SCM_OUT_PCLASS_INDEX SCM_I_MAX_PORT_TYPE_COUNT
#define SCM_INOUT_PCLASS_INDEX (2 * SCM_I_MAX_PORT_TYPE_COUNT)
/* Plugin proxy classes for basic types. */
SCM_API SCM scm_metaclass_standard;

4
libguile/ports.c
View file

@ -1,4 +1,4 @@
/* Copyright (C) 1995,1996,1997,1998,1999,2000,2001, 2003, 2004, 2006, 2007, 2008 Free Software Foundation, Inc.
/* Copyright (C) 1995,1996,1997,1998,1999,2000,2001, 2003, 2004, 2006, 2007, 2008, 2009 Free Software Foundation, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
@ -134,7 +134,7 @@ scm_make_port_type (char *name,
void (*write) (SCM port, const void *data, size_t size))
{
char *tmp;
if (255 <= scm_numptob)
if (SCM_I_MAX_PORT_TYPE_COUNT - 1 <= scm_numptob)
goto ptoberr;
SCM_CRITICAL_SECTION_START;
tmp = (char *) scm_gc_realloc ((char *) scm_ptobs,

5
libguile/ports.h
View file

@ -3,7 +3,7 @@
#ifndef SCM_PORTS_H
#define SCM_PORTS_H
/* Copyright (C) 1995,1996,1997,1998,1999,2000,2001, 2003, 2004, 2006, 2008 Free Software Foundation, Inc.
/* Copyright (C) 1995,1996,1997,1998,1999,2000,2001, 2003, 2004, 2006, 2008, 2009 Free Software Foundation, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
@ -162,6 +162,9 @@ SCM_INTERNAL SCM scm_i_port_weak_hash;
#define SCM_DECCOL(port) {if (SCM_COL (port) > 0) SCM_COL (port) -= 1;}
#define SCM_TABCOL(port) {SCM_COL (port) += 8 - SCM_COL (port) % 8;}
/* Maximum number of port types. */
#define SCM_I_MAX_PORT_TYPE_COUNT 256
/* port-type description. */