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278ba99027
Gosh this was a slog * libguile/dynstack.c (dynstack_ensure_space): Use malloc and free. Threads have off-heap dynstacks, with manual marking. (scm_trace_dynstack): Implement tracing. (trace_pinned_trampoline, scm_trace_dynstack_roots): Implement tracing for active threads. (scm_dynstack_capture): Tag dynstacks. * libguile/dynstack.h (scm_t_dynstack): Add a tag. (scm_t_dynstack_winder_flags): Add SCM_F_DYNSTACK_WINDER_MANAGED. * libguile/dynwind.h (scm_t_wind_flags): Add SCM_F_WIND_MANAGED. * libguile/dynwind.c (scm_dynwind_unwind_handler_with_scm) (scm_dynwind_rewind_handler_with_scm): These values need to be traced by GC. * libguile/scm.h (scm_tc16_dynstack_slice): New typecode. No need for equality etc because it shouldn't escape to Scheme (currently). * libguile/trace.h: Add trace decls. * libguile/threads.c (scm_trace_thread_roots): Trace dynstacks explicitly here, as they are off-heap.
60 lines
1.8 KiB
C
60 lines
1.8 KiB
C
#ifndef SCM_DYNWIND_H
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#define SCM_DYNWIND_H
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/* Copyright 1995-1996,1998-2000,2003-2004,2006,2008,2011-2012,2018,2025
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Free Software Foundation, Inc.
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This file is part of Guile.
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Guile is free software: you can redistribute it and/or modify it
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under the terms of the GNU Lesser General Public License as published
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by the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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Guile is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
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License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with Guile. If not, see
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<https://www.gnu.org/licenses/>. */
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#include "libguile/dynstack.h"
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SCM_API SCM scm_dynamic_wind (SCM thunk1, SCM thunk2, SCM thunk3);
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SCM_INTERNAL void scm_init_dynwind (void);
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SCM_API void scm_swap_bindings (SCM vars, SCM vals);
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typedef enum {
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SCM_F_DYNWIND_REWINDABLE = SCM_F_DYNSTACK_FRAME_REWINDABLE
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} scm_t_dynwind_flags;
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typedef enum {
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SCM_F_WIND_EXPLICITLY = SCM_F_DYNSTACK_WINDER_EXPLICIT,
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SCM_F_WIND_MANAGED = SCM_F_DYNSTACK_WINDER_MANAGED
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} scm_t_wind_flags;
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SCM_API void scm_dynwind_begin (scm_t_dynwind_flags);
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SCM_API void scm_dynwind_end (void);
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SCM_API void scm_dynwind_unwind_handler (void (*func) (void *), void *data,
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scm_t_wind_flags);
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SCM_API void scm_dynwind_rewind_handler (void (*func) (void *), void *data,
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scm_t_wind_flags);
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SCM_API void scm_dynwind_unwind_handler_with_scm (void (*func) (SCM), SCM data,
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scm_t_wind_flags);
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SCM_API void scm_dynwind_rewind_handler_with_scm (void (*func) (SCM), SCM data,
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scm_t_wind_flags);
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SCM_API void scm_dynwind_free (void *mem);
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#endif /* SCM_DYNWIND_H */
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