2018-01-20 16:04:30 +00:00
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/*
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2018-05-18 03:41:20 +00:00
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* Copyright (c) 2018 Calvin Rose
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2018-01-20 16:04:30 +00:00
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to
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* deal in the Software without restriction, including without limitation the
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* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
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* sell copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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* IN THE SOFTWARE.
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*/
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#ifndef DST_STATE_H_defined
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#define DST_STATE_H_defined
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#include <stdint.h>
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/* The VM state. Rather than a struct that is passed
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2018-05-20 01:16:00 +00:00
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* around, the vm state is global for simplicity. If
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2018-05-14 13:55:34 +00:00
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* at some point a a global state object, or context,
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2018-04-30 21:05:42 +00:00
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* is required to be passed around, this is waht would
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2018-05-14 13:55:34 +00:00
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* be in it. However, thread local globals for interpreter
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* state should allow easy multithreading. */
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2018-01-20 16:04:30 +00:00
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2018-03-04 23:56:13 +00:00
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/* How many VM stacks have been entered */
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2018-03-30 20:12:30 +00:00
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extern DST_THREAD_LOCAL int dst_vm_stackn;
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2018-03-04 23:56:13 +00:00
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2018-05-14 13:55:34 +00:00
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/* The current running fiber on the current thread.
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* Set and unset by dst_run. */
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extern DST_THREAD_LOCAL DstFiber *dst_vm_fiber;
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2018-06-12 18:24:45 +00:00
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/* The global registry for c functions. Used to store metadata
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* along with otherwise bare c function pointers. */
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extern DST_THREAD_LOCAL DstTable *dst_vm_registry;
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2018-01-20 16:04:30 +00:00
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/* Immutable value cache */
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2018-03-30 20:12:30 +00:00
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extern DST_THREAD_LOCAL const uint8_t **dst_vm_cache;
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extern DST_THREAD_LOCAL uint32_t dst_vm_cache_capacity;
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extern DST_THREAD_LOCAL uint32_t dst_vm_cache_count;
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extern DST_THREAD_LOCAL uint32_t dst_vm_cache_deleted;
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2018-01-20 16:04:30 +00:00
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2018-03-31 20:40:36 +00:00
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/* Garbage collection */
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extern DST_THREAD_LOCAL void *dst_vm_blocks;
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extern DST_THREAD_LOCAL uint32_t dst_vm_gc_interval;
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extern DST_THREAD_LOCAL uint32_t dst_vm_next_collection;
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extern DST_THREAD_LOCAL int dst_vm_gc_suspend;
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2018-01-20 16:04:30 +00:00
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/* GC roots */
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2018-03-30 20:12:30 +00:00
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extern DST_THREAD_LOCAL Dst *dst_vm_roots;
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extern DST_THREAD_LOCAL uint32_t dst_vm_root_count;
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extern DST_THREAD_LOCAL uint32_t dst_vm_root_capacity;
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2018-01-20 16:04:30 +00:00
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#endif /* DST_STATE_H_defined */
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