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(SCM_NONREC_CRITICAL_SECTION_START, SCM_NONREC_CRITICAL_SECTION_END, SCM_REC_CRITICAL_SECTION_START, SCM_REC_CRITICAL_SECTION_END): New macros. (SCM_CRITICAL_SECTION_START/END): Defined here. * eval.c: Insert SOURCE_SECTION_START / SOURCE_SECTION_END around the three calls to scm_m_expand_body. * gc.h: #include "libguile/pthread-threads.h"; (SCM_FREELIST_CREATE, SCM_FREELIST_LOC): New macros. * gc.c (scm_i_freelist, scm_i_freelist2): Defined to be of type scm_t_key; * gc.c, gc-freelist.c, inline.h: Use SCM_FREELIST_LOC for freelist access. * gc-freelist.c (scm_gc_init_freelist): Create freelist keys. * gc-freelist.c, threads.c (really_launch): Use SCM_FREELIST_CREATE. * gc-malloc.c (scm_realloc, scm_gc_register_collectable_memory): * gc.c (scm_i_expensive_validation_check, scm_gc, scm_gc_for_newcell): Put threads to sleep before doing GC-related heap administration so that those pieces of code are executed single-threaded. We might consider rewriting these code sections in terms of a "call_gc_code_singly_threaded" construct instead of calling the pair of scm_i_thread_put_to_sleep () and scm_i_thread_wake_up (). Also, we would want to have as many of these sections eleminated. * init.c (scm_init_guile_1): Call scm_threads_prehistory. * inline.h: #include "libguile/threads.h" * pthread-threads.h: Macros now conform more closely to the pthreads interface. Some of them now take a second argument. * threads.c, threads.h: Many changes. * configure.in: Temporarily replaced "copt" threads option with new option "pthreads". (USE_PTHREAD_THREADS): Define if pthreads configured.
245 lines
8.4 KiB
C
245 lines
8.4 KiB
C
/* classes: h_files */
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#ifndef SCM_SNARF_H
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#define SCM_SNARF_H
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/* Copyright (C) 1995,1996,1997,1998,1999,2000,2001, 2002 Free Software Foundation, Inc.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2, or (at your option)
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* any later version.
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*
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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. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this software; see the file COPYING. If not, write to
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* the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
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* Boston, MA 02111-1307 USA
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*
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* As a special exception, the Free Software Foundation gives permission
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* for additional uses of the text contained in its release of GUILE.
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*
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* The exception is that, if you link the GUILE library with other files
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* to produce an executable, this does not by itself cause the
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* resulting executable to be covered by the GNU General Public License.
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* Your use of that executable is in no way restricted on account of
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* linking the GUILE library code into it.
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*
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* This exception does not however invalidate any other reasons why
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* the executable file might be covered by the GNU General Public License.
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*
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* This exception applies only to the code released by the
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* Free Software Foundation under the name GUILE. If you copy
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* code from other Free Software Foundation releases into a copy of
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* GUILE, as the General Public License permits, the exception does
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* not apply to the code that you add in this way. To avoid misleading
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* anyone as to the status of such modified files, you must delete
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* this exception notice from them.
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*
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* If you write modifications of your own for GUILE, it is your choice
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* whether to permit this exception to apply to your modifications.
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* If you do not wish that, delete this exception notice. */
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/* Macros for snarfing initialization actions from C source. */
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#if defined(__cplusplus) || defined(GUILE_CPLUSPLUS_SNARF)
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/* This used to be "SCM (*)(...)" but GCC on RedHat 7.1 doesn't seem
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to like it.
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*/
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#define SCM_FUNC_CAST_ARBITRARY_ARGS SCM (*)()
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#else
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#define SCM_FUNC_CAST_ARBITRARY_ARGS SCM (*)()
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#endif
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/* Generic macros to be used in user macro definitions.
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*
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* For example, in order to define a macro which creates ints and
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* initializes them to the result of foo (), do:
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*
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* #define SCM_FOO(NAME) \
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* SCM_SNARF_HERE (int NAME) \
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* SCM_SNARF_INIT (NAME = foo ())
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*
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* The SCM_SNARF_INIT text goes into the corresponding .x file
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* up through the first occurrence of SCM_SNARF_DOC_START on that
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* line, if any.
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*/
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#ifdef SCM_MAGIC_SNARF_INITS
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# define SCM_SNARF_HERE(X)
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# define SCM_SNARF_INIT(X) ^^ X ^:^
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# define SCM_SNARF_DOCS(TYPE, CNAME, FNAME, ARGLIST, REQ, OPT, VAR, DOCSTRING)
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#else
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# ifdef SCM_MAGIC_SNARF_DOCS
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# define SCM_SNARF_HERE(X)
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# define SCM_SNARF_INIT(X)
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# define SCM_SNARF_DOCS(TYPE, CNAME, FNAME, ARGLIST, REQ, OPT, VAR, DOCSTRING) \
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^^ { \
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cname CNAME ^^ \
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fname FNAME ^^ \
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type TYPE ^^ \
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location __FILE__ __LINE__ ^^ \
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arglist ARGLIST ^^ \
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argsig REQ OPT VAR ^^ \
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DOCSTRING ^^ }
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# else
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# define SCM_SNARF_HERE(X) X
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# define SCM_SNARF_INIT(X)
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# define SCM_SNARF_DOCS(TYPE, CNAME, FNAME, ARGLIST, REQ, OPT, VAR, DOCSTRING)
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# endif
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#endif
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#define SCM_DEFINE(FNAME, PRIMNAME, REQ, OPT, VAR, ARGLIST, DOCSTRING) \
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SCM_SNARF_HERE(\
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static const char s_ ## FNAME [] = PRIMNAME; \
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SCM FNAME ARGLIST\
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)\
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SCM_SNARF_INIT(\
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scm_c_define_gsubr (s_ ## FNAME, REQ, OPT, VAR, \
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(SCM_FUNC_CAST_ARBITRARY_ARGS) FNAME); \
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)\
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SCM_SNARF_DOCS(primitive, FNAME, PRIMNAME, ARGLIST, REQ, OPT, VAR, DOCSTRING)
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#define SCM_DEFINE_PUBLIC(FNAME, PRIMNAME, REQ, OPT, VAR, ARGLIST, DOCSTRING) \
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SCM_SNARF_HERE(\
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static const char s_ ## FNAME [] = PRIMNAME; \
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SCM FNAME ARGLIST\
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)\
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SCM_SNARF_INIT(\
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scm_c_define_gsubr (s_ ## FNAME, REQ, OPT, VAR, \
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(SCM_FUNC_CAST_ARBITRARY_ARGS) FNAME); \
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scm_c_export (s_ ## FNAME, NULL); \
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)\
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SCM_SNARF_DOCS(primitive, FNAME, PRIMNAME, ARGLIST, REQ, OPT, VAR, DOCSTRING)
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#define SCM_DEFINE1(FNAME, PRIMNAME, TYPE, ARGLIST, DOCSTRING) \
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SCM_SNARF_HERE(\
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static const char s_ ## FNAME [] = PRIMNAME; \
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SCM FNAME ARGLIST\
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)\
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SCM_SNARF_INIT(scm_c_define_subr (s_ ## FNAME, TYPE, FNAME); ) \
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SCM_SNARF_DOCS(1, FNAME, PRIMNAME, ARGLIST, 2, 0, 0, DOCSTRING)
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#define SCM_PROC(RANAME, STR, REQ, OPT, VAR, CFN) \
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SCM_SNARF_HERE(static const char RANAME[]=STR) \
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SCM_SNARF_INIT(scm_c_define_gsubr (RANAME, REQ, OPT, VAR, \
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(SCM_FUNC_CAST_ARBITRARY_ARGS) CFN))
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#define SCM_REGISTER_PROC(RANAME, STR, REQ, OPT, VAR, CFN) \
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SCM_SNARF_HERE(static const char RANAME[]=STR) \
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SCM_SNARF_INIT(scm_c_define_gsubr (RANAME, REQ, OPT, VAR, \
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(SCM_FUNC_CAST_ARBITRARY_ARGS) CFN);) \
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SCM_SNARF_DOCS(register, CFN, STR, (), REQ, OPT, VAR, \
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"implemented by the C function \"" #CFN "\"")
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#define SCM_GPROC(RANAME, STR, REQ, OPT, VAR, CFN, GF) \
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SCM_SNARF_HERE(\
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static const char RANAME[]=STR;\
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static SCM GF \
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)SCM_SNARF_INIT(\
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GF = SCM_PACK (0); /* Dirk:FIXME:: Can we safely use #f instead of 0? */ \
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scm_c_define_gsubr_with_generic (RANAME, REQ, OPT, VAR, \
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(SCM_FUNC_CAST_ARBITRARY_ARGS) CFN, &GF) \
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)
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#define SCM_PROC1(RANAME, STR, TYPE, CFN) \
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SCM_SNARF_HERE(static const char RANAME[]=STR) \
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SCM_SNARF_INIT(\
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scm_c_define_subr (RANAME, TYPE, (SCM_FUNC_CAST_ARBITRARY_ARGS) CFN) \
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)
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#define SCM_GPROC1(RANAME, STR, TYPE, CFN, GF) \
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SCM_SNARF_HERE(\
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static const char RANAME[]=STR; \
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static SCM GF \
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)SCM_SNARF_INIT(\
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GF = SCM_PACK (0); /* Dirk:FIXME:: Can we safely use #f instead of 0? */ \
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scm_c_define_subr_with_generic (RANAME, TYPE, \
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(SCM_FUNC_CAST_ARBITRARY_ARGS) CFN, &GF) \
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)
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#define SCM_SYNTAX(RANAME, STR, TYPE, CFN) \
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SCM_SNARF_HERE(static const char RANAME[]=STR)\
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SCM_SNARF_INIT(scm_make_synt (RANAME, TYPE, CFN))
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#define SCM_SYMBOL(c_name, scheme_name) \
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SCM_SNARF_HERE(static SCM c_name) \
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SCM_SNARF_INIT(c_name = scm_permanent_object (scm_str2symbol (scheme_name)))
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#define SCM_GLOBAL_SYMBOL(c_name, scheme_name) \
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SCM_SNARF_HERE(SCM c_name) \
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SCM_SNARF_INIT(c_name = scm_permanent_object (scm_str2symbol (scheme_name)))
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#define SCM_KEYWORD(c_name, scheme_name) \
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SCM_SNARF_HERE(static SCM c_name) \
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SCM_SNARF_INIT(c_name = scm_permanent_object (scm_c_make_keyword (scheme_name)))
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#define SCM_GLOBAL_KEYWORD(c_name, scheme_name) \
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SCM_SNARF_HERE(SCM c_name) \
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SCM_SNARF_INIT(c_name = scm_permanent_object (scm_c_make_keyword (scheme_name)))
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#define SCM_VARIABLE(c_name, scheme_name) \
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SCM_SNARF_HERE(static SCM c_name) \
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SCM_SNARF_INIT(c_name = scm_permanent_object (scm_c_define (scheme_name, SCM_BOOL_F));)
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#define SCM_GLOBAL_VARIABLE(c_name, scheme_name) \
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SCM_SNARF_HERE(SCM c_name) \
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SCM_SNARF_INIT(c_name = scm_permanent_object (scm_c_define (scheme_name, SCM_BOOL_F));)
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#define SCM_VARIABLE_INIT(c_name, scheme_name, init_val) \
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SCM_SNARF_HERE(static SCM c_name) \
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SCM_SNARF_INIT(c_name = scm_permanent_object (scm_c_define (scheme_name, init_val));)
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#define SCM_GLOBAL_VARIABLE_INIT(c_name, scheme_name, init_val) \
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SCM_SNARF_HERE(SCM c_name) \
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SCM_SNARF_INIT(c_name = scm_permanent_object (scm_c_define (scheme_name, init_val));)
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#define SCM_NONREC_CRITICAL_SECTION(prefix) \
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SCM_SNARF_HERE(static scm_t_mutex prefix ## _mutex) \
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SCM_SNARF_INIT(scm_i_plugin_mutex_init (&prefix ## _mutex, 0))
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#define SCM_GLOBAL_NONREC_CRITICAL_SECTION(prefix) \
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SCM_SNARF_HERE(scm_t_mutex prefix ## _mutex) \
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SCM_SNARF_INIT(scm_i_plugin_mutex_init (&prefix ## _mutex, 0))
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#define SCM_REC_CRITICAL_SECTION(prefix) \
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SCM_SNARF_HERE(\
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static scm_t_mutex prefix ## _mutex; \
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static int prefix ## _count; \
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static scm_thread *prefix ## _owner\
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)SCM_SNARF_INIT(\
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scm_i_plugin_mutex_init (&prefix ## _mutex, 0)\
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)
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#define SCM_GLOBAL_REC_CRITICAL_SECTION(prefix) \
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SCM_SNARF_HERE(\
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scm_t_mutex prefix ## _mutex; \
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int prefix ## _count; \
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scm_thread *prefix ## _owner\
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)SCM_SNARF_INIT(\
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scm_i_plugin_mutex_init (&prefix ## _mutex, 0); \
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prefix ## _count = 0; \
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prefix ## _owner = 0\
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)
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#ifdef SCM_MAGIC_SNARF_DOCS
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#undef SCM_ASSERT
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#define SCM_ASSERT(_cond, _arg, _pos, _subr) ^^ argpos _arg _pos __LINE__ ^^
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#endif /* SCM_MAGIC_SNARF_DOCS */
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#endif /* SCM_SNARF_H */
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/*
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Local Variables:
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c-file-style: "gnu"
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End:
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*/
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