diff options
Diffstat (limited to 'py/mpstate.h')
| -rw-r--r-- | py/mpstate.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/py/mpstate.h b/py/mpstate.h index 54eca596d..51f290b55 100644 --- a/py/mpstate.h +++ b/py/mpstate.h @@ -77,6 +77,18 @@ typedef struct _mp_sched_item_t { mp_obj_t arg; } mp_sched_item_t; +// gc_lock_depth field is a combination of the GC_COLLECT_FLAG +// bit and a lock depth shifted GC_LOCK_DEPTH_SHIFT bits left. +#if MICROPY_ENABLE_FINALISER +#define GC_COLLECT_FLAG 1 +#define GC_LOCK_DEPTH_SHIFT 1 +#else +// If finalisers are disabled then this check doesn't matter, as gc_lock() +// is called anywhere else that heap can't be changed. So save some code size. +#define GC_COLLECT_FLAG 0 +#define GC_LOCK_DEPTH_SHIFT 0 +#endif + // This structure holds information about a single contiguous area of // memory reserved for the memory manager. typedef struct _mp_state_mem_area_t { @@ -268,6 +280,7 @@ typedef struct _mp_state_thread_t { #endif // Locking of the GC is done per thread. + // See GC_LOCK_DEPTH_SHIFT for an explanation of this field. uint16_t gc_lock_depth; //////////////////////////////////////////////////////////// |