mirror of
https://github.com/golang/go
synced 2024-10-03 11:11:22 -06:00
fee9e47559
The conversion was done with an automated tool and then modified only as necessary to make it compile and run. [This CL is part of the removal of C code from package runtime. See golang.org/s/dev.cc for an overview.] LGTM=r R=r, austin CC=dvyukov, golang-codereviews, iant, khr https://golang.org/cl/167550043
62 lines
1.6 KiB
Go
62 lines
1.6 KiB
Go
// Copyright 2009 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package runtime
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import "unsafe"
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//#define MAXALIGN 8
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type waitq struct {
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first *sudog
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last *sudog
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}
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type hchan struct {
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qcount uint // total data in the q
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dataqsiz uint // size of the circular q
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buf *byte
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elemsize uint16
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closed uint32
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elemtype *_type // element type
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sendx uint // send index
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recvx uint // receive index
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recvq waitq // list of recv waiters
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sendq waitq // list of send waiters
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lock mutex
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}
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// Buffer follows Hchan immediately in memory.
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// chanbuf(c, i) is pointer to the i'th slot in the buffer.
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// #define chanbuf(c, i) ((byte*)((c)->buf)+(uintptr)(c)->elemsize*(i))
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const (
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// scase.kind
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_CaseRecv = iota
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_CaseSend
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_CaseDefault
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)
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// Known to compiler.
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// Changes here must also be made in src/cmd/gc/select.c's selecttype.
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type scase struct {
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elem unsafe.Pointer // data element
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_chan *hchan // chan
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pc uintptr // return pc
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kind uint16
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so uint16 // vararg of selected bool
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receivedp *bool // pointer to received bool (recv2)
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releasetime int64
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}
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// Known to compiler.
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// Changes here must also be made in src/cmd/gc/select.c's selecttype.
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type _select struct {
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tcase uint16 // total count of scase[]
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ncase uint16 // currently filled scase[]
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pollorder *uint16 // case poll order
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lockorder **hchan // channel lock order
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scase [1]scase // one per case (in order of appearance)
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}
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