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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.
99 lines
3.6 KiB
C
99 lines
3.6 KiB
C
#ifndef SCM_THREADS_INTERNAL_H
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#define SCM_THREADS_INTERNAL_H
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/* Copyright 2025 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/scm.h"
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#include "gc-ref.h"
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#include "gc-edge.h"
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struct scm_thread;
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struct scm_vm;
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struct scm_dynstack;
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struct gc_heap;
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struct gc_heap_roots { int unused; };
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static inline SCM
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scm_from_ref (struct gc_ref ref)
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{
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return SCM_PACK (gc_ref_value (ref));
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}
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static inline struct gc_ref
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scm_to_ref (SCM scm)
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{
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return gc_ref (SCM_UNPACK (scm));
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}
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SCM_INTERNAL void
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scm_trace_thread_roots (struct scm_thread *thread,
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void (*trace_pinned) (struct gc_ref ref,
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struct gc_heap *heap,
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void *trace_data),
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void (*trace_ambiguous) (uintptr_t lo,
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uintptr_t hi,
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int possibly_interior,
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struct gc_heap *heap,
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void *trace_data),
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struct gc_heap *heap,
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void *trace_data);
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SCM_INTERNAL void
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scm_trace_vm_roots (struct scm_vm *vp,
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void (*trace_pinned) (struct gc_ref ref,
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struct gc_heap *heap,
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void *trace_data),
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void (*trace_ambiguous) (uintptr_t lo,
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uintptr_t hi,
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int possibly_interior,
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struct gc_heap *heap,
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void *trace_data),
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struct gc_heap *heap,
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void *trace_data);
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SCM_INTERNAL void
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scm_trace_loader_roots (void (*trace_ambiguous) (uintptr_t lo,
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uintptr_t hi,
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int possibly_interior,
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struct gc_heap *heap,
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void *trace_data),
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struct gc_heap *heap,
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void *trace_data);
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SCM_INTERNAL void
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scm_trace_dynstack (struct scm_dynstack *dynstack,
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void (*trace) (struct gc_edge edge,
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struct gc_heap *heap,
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void *trace_data),
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struct gc_heap *heap,
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void *trace_data);
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SCM_INTERNAL void
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scm_trace_dynstack_roots (struct scm_dynstack *dynstack,
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void (*trace_pinned) (struct gc_ref ref,
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struct gc_heap *heap,
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void *trace_data),
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struct gc_heap *heap,
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void *trace_data);
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#endif /* SCM_THREADS_INTERNAL_H */
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