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-rw-r--r--py/gc.c9
1 files changed, 7 insertions, 2 deletions
diff --git a/py/gc.c b/py/gc.c
index ce2fa3a48d..fca5050e79 100644
--- a/py/gc.c
+++ b/py/gc.c
@@ -28,6 +28,7 @@
#include <stdio.h>
#include <string.h>
#include <stdbool.h>
+#include <stdint.h>
#include "mpconfig.h"
#include "misc.h"
@@ -68,7 +69,8 @@ STATIC mp_uint_t *gc_pool_end;
STATIC int gc_stack_overflow;
STATIC mp_uint_t gc_stack[STACK_SIZE];
STATIC mp_uint_t *gc_sp;
-STATIC mp_uint_t gc_lock_depth;
+STATIC uint16_t gc_lock_depth;
+uint16_t gc_auto_collect_enabled;
STATIC mp_uint_t gc_last_free_atb_index;
// ATB = allocation table byte
@@ -163,6 +165,9 @@ void gc_init(void *start, void *end) {
// unlock the GC
gc_lock_depth = 0;
+ // allow auto collection
+ gc_auto_collect_enabled = 1;
+
DEBUG_printf("GC layout:\n");
DEBUG_printf(" alloc table at %p, length " UINT_FMT " bytes, " UINT_FMT " blocks\n", gc_alloc_table_start, gc_alloc_table_byte_len, gc_alloc_table_byte_len * BLOCKS_PER_ATB);
#if MICROPY_ENABLE_FINALISER
@@ -375,7 +380,7 @@ void *gc_alloc(mp_uint_t n_bytes, bool has_finaliser) {
mp_uint_t end_block;
mp_uint_t start_block;
mp_uint_t n_free = 0;
- int collected = 0;
+ int collected = !gc_auto_collect_enabled;
for (;;) {
// look for a run of n_blocks available blocks