31 lines
807 B
C
31 lines
807 B
C
|
/* 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;
|
||
|
|
}
|