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factor/vm/gc.hpp

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Use C++ namespaces
2009-05-04 02:46:13 -04:00
namespace factor
{
vm: during tenuring stage of aging collection, if tenured space fills up, it would attempt a to_tenured collection. this will succeed if all roots were tenured. however, this is unsound, because there's now an untraced segment of tenured space. fix: if tenuring fails, go on to do a full collection instead
2009-10-15 06:51:11 -04:00
enum gc_op {
collect_nursery_op,
collect_aging_op,
collect_to_tenured_op,
collect_full_op,
vm: make compaction its own gc_op
2009-10-25 15:02:14 -04:00
collect_compact_op,
vm: during tenuring stage of aging collection, if tenured space fills up, it would attempt a to_tenured collection. this will succeed if all roots were tenured. however, this is unsound, because there's now an untraced segment of tenured space. fix: if tenuring fails, go on to do a full collection instead
2009-10-15 06:51:11 -04:00
collect_growing_heap_op
};
Big VM cleanup - Move forward declarations of 'struct factor_vm' to one place - Rename template parameters from T and TYPE to descriptive names. New convention: CamelCase for template parameters - Change some higher-order functions taking function pointers into templates, and define classes overriding operator(). There's a bit of new boilerplate here but its more consistent than the old mish-mash approaches - Put GC state into a gc_state struct - Use exceptions instead of longjmp for non-local control transfer in GC - In code GC, instead of interleaving code block tracing with copying, add code blocks which need to be revisited to an std::set stored in the gc_state
2009-10-03 09:47:05 -04:00
struct gc_state {
vm: during tenuring stage of aging collection, if tenured space fills up, it would attempt a to_tenured collection. this will succeed if all roots were tenured. however, this is unsound, because there's now an untraced segment of tenured space. fix: if tenuring fails, go on to do a full collection instead
2009-10-15 06:51:11 -04:00
gc_op op;
Big VM cleanup - Move forward declarations of 'struct factor_vm' to one place - Rename template parameters from T and TYPE to descriptive names. New convention: CamelCase for template parameters - Change some higher-order functions taking function pointers into templates, and define classes overriding operator(). There's a bit of new boilerplate here but its more consistent than the old mish-mash approaches - Put GC state into a gc_state struct - Use exceptions instead of longjmp for non-local control transfer in GC - In code GC, instead of interleaving code block tracing with copying, add code blocks which need to be revisited to an std::set stored in the gc_state
2009-10-03 09:47:05 -04:00
u64 start_time;
Change C++ exception usage back into a longjmp() due to GCC bugs
2009-10-05 04:27:28 -04:00
jmp_buf gc_unwind;
vm: during tenuring stage of aging collection, if tenured space fills up, it would attempt a to_tenured collection. this will succeed if all roots were tenured. however, this is unsound, because there's now an untraced segment of tenured space. fix: if tenuring fails, go on to do a full collection instead
2009-10-15 06:51:11 -04:00
explicit gc_state(gc_op op_);
Big VM cleanup - Move forward declarations of 'struct factor_vm' to one place - Rename template parameters from T and TYPE to descriptive names. New convention: CamelCase for template parameters - Change some higher-order functions taking function pointers into templates, and define classes overriding operator(). There's a bit of new boilerplate here but its more consistent than the old mish-mash approaches - Put GC state into a gc_state struct - Use exceptions instead of longjmp for non-local control transfer in GC - In code GC, instead of interleaving code block tracing with copying, add code blocks which need to be revisited to an std::set stored in the gc_state
2009-10-03 09:47:05 -04:00
~gc_state();
};
vm: rename myvm and parent_vm instance variables to parent, clean up casts in primitive definitions
2009-10-18 21:31:59 -04:00
VM_C_API void inline_gc(cell *gc_roots_base, cell gc_roots_size, factor_vm *parent);
VM: use better abstractions for tagged pointers, eliminate get()/set() stuff, clean up array, string, and byte-array element access
2009-05-04 02:00:30 -04:00
Use C++ namespaces
2009-05-04 02:46:13 -04:00
}