diff options
Diffstat (limited to 'erts/emulator/beam/erl_nif.c')
| -rw-r--r-- | erts/emulator/beam/erl_nif.c | 18 |
1 files changed, 9 insertions, 9 deletions
diff --git a/erts/emulator/beam/erl_nif.c b/erts/emulator/beam/erl_nif.c index 28b68c9e7d..72bff49f32 100644 --- a/erts/emulator/beam/erl_nif.c +++ b/erts/emulator/beam/erl_nif.c @@ -3431,6 +3431,7 @@ static void marshal_iovec_binary(Eterm binary, ErlNifBinary *copy_buffer, * and reference that instead. */ if (result->ref_bin == NULL || bit_offset != 0) { + ASSERT(copy_buffer->ref_bin != NULL && copy_buffer->data != NULL); ASSERT(result->size <= (copy_buffer->size - *copy_offset)); if (bit_offset == 0) { @@ -3452,8 +3453,8 @@ static void marshal_iovec_binary(Eterm binary, ErlNifBinary *copy_buffer, static int fill_iovec_with_slice(ErlNifEnv *env, iovec_slice_t *slice, ErlNifIOVec *iovec) { + ErlNifBinary copy_buffer = {0}; UWord copy_offset, iovec_idx; - ErlNifBinary copy_buffer; Eterm sublist_iterator; /* Set up a common refc binary for all on-heap and unaligned binaries. */ @@ -3461,11 +3462,8 @@ static int fill_iovec_with_slice(ErlNifEnv *env, if (!enif_alloc_binary(slice->copied_size, ©_buffer)) { return 0; } - } else { -#ifdef DEBUG - copy_buffer.data = NULL; - copy_buffer.size = 0; -#endif + + ASSERT(copy_buffer.ref_bin != NULL); } sublist_iterator = slice->sublist_start; @@ -3515,9 +3513,11 @@ static int fill_iovec_with_slice(ErlNifEnv *env, } } else { if (slice->copied_size > 0) { - /* Attach the binary to our environment and let the GC take care of - * it after returning. */ - enif_make_binary(env, ©_buffer); + /* Attach the binary to our environment and let the next minor GC + * get rid of it. This is slightly faster than using the tmp object + * list since it avoids off-heap allocations. */ + erts_build_proc_bin(&MSO(env->proc), + alloc_heap(env, PROC_BIN_SIZE), copy_buffer.ref_bin); } } |