diff options
Diffstat (limited to 'libgo/runtime/go-send-nb-big.c')
-rw-r--r-- | libgo/runtime/go-send-nb-big.c | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/libgo/runtime/go-send-nb-big.c b/libgo/runtime/go-send-nb-big.c new file mode 100644 index 00000000000..288ce7f4419 --- /dev/null +++ b/libgo/runtime/go-send-nb-big.c @@ -0,0 +1,30 @@ +/* go-send-nb-big.c -- nonblocking send of something big on a channel. + + Copyright 2009 The Go Authors. All rights reserved. + Use of this source code is governed by a BSD-style + license that can be found in the LICENSE file. */ + +#include <stdint.h> + +#include "channel.h" + +_Bool +__go_send_nonblocking_big (struct __go_channel* channel, const void *val) +{ + size_t alloc_size; + size_t offset; + + alloc_size = ((channel->element_size + sizeof (uint64_t) - 1) + / sizeof (uint64_t)); + + int data = __go_send_nonblocking_acquire (channel); + if (data != SEND_NONBLOCKING_ACQUIRE_SPACE) + return data == SEND_NONBLOCKING_ACQUIRE_CLOSED; + + offset = channel->next_store * alloc_size; + __builtin_memcpy (&channel->data[offset], val, channel->element_size); + + __go_send_release (channel); + + return 1; +} |