From 99fdafd8c03a7baee265ce3dd22af5b2d02fdeb6 Mon Sep 17 00:00:00 2001 From: Jo-Philipp Wich Date: Tue, 7 Dec 2021 13:40:51 +0100 Subject: vm: introduce value registry Introduce a new, lazily allocated value registry which can be used by C code to store values which should not be garbage collected. The registry is a plain ucode object internally and treated as GC root but not exposed to ucode script code, this allows it to retain references to values which are otherwise completely unreachable from ucode scripts. Signed-off-by: Jo-Philipp Wich --- include/ucode/types.h | 1 + include/ucode/vm.h | 5 +++++ 2 files changed, 6 insertions(+) (limited to 'include') diff --git a/include/ucode/types.h b/include/ucode/types.h index ccb0e1b..49d910b 100644 --- a/include/ucode/types.h +++ b/include/ucode/types.h @@ -250,6 +250,7 @@ struct uc_vm { uc_upvalref_t *open_upvals; uc_parse_config_t *config; uc_value_t *globals; + uc_value_t *registry; uc_source_t *sources; uc_weakref_t values; uc_resource_types_t restypes; diff --git a/include/ucode/vm.h b/include/ucode/vm.h index 1e9357f..caebb7a 100644 --- a/include/ucode/vm.h +++ b/include/ucode/vm.h @@ -119,6 +119,11 @@ void uc_vm_free(uc_vm_t *vm); uc_value_t *uc_vm_scope_get(uc_vm_t *vm); void uc_vm_scope_set(uc_vm_t *vm, uc_value_t *ctx); +bool uc_vm_registry_exists(uc_vm_t *vm, const char *key); +uc_value_t *uc_vm_registry_get(uc_vm_t *vm, const char *key); +void uc_vm_registry_set(uc_vm_t *vm, const char *key, uc_value_t *value); +bool uc_vm_registry_delete(uc_vm_t *vm, const char *key); + void uc_vm_stack_push(uc_vm_t *vm, uc_value_t *value); uc_value_t *uc_vm_stack_pop(uc_vm_t *vm); uc_value_t *uc_vm_stack_peek(uc_vm_t *vm, size_t offset); -- cgit v1.2.3