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-rw-r--r--libgo/runtime/go-send-nb-big.c30
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
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+++ b/libgo/runtime/go-send-nb-big.c
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+/* 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;
+}