github.com/scaleoutsean/fusego@v0.0.0-20220224074057-4a6429e46bb8/freelists.go (about)

     1  // Copyright 2015 Google Inc. All Rights Reserved.
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //     http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  package fuse
    16  
    17  import (
    18  	"unsafe"
    19  
    20  	"github.com/scaleoutsean/fusego/internal/buffer"
    21  )
    22  
    23  ////////////////////////////////////////////////////////////////////////
    24  // buffer.InMessage
    25  ////////////////////////////////////////////////////////////////////////
    26  
    27  // LOCKS_EXCLUDED(c.mu)
    28  func (c *Connection) getInMessage() *buffer.InMessage {
    29  	c.mu.Lock()
    30  	x := (*buffer.InMessage)(c.inMessages.Get())
    31  	c.mu.Unlock()
    32  
    33  	if x == nil {
    34  		x = new(buffer.InMessage)
    35  	}
    36  
    37  	return x
    38  }
    39  
    40  // LOCKS_EXCLUDED(c.mu)
    41  func (c *Connection) putInMessage(x *buffer.InMessage) {
    42  	c.mu.Lock()
    43  	c.inMessages.Put(unsafe.Pointer(x))
    44  	c.mu.Unlock()
    45  }
    46  
    47  ////////////////////////////////////////////////////////////////////////
    48  // buffer.OutMessage
    49  ////////////////////////////////////////////////////////////////////////
    50  
    51  // LOCKS_EXCLUDED(c.mu)
    52  func (c *Connection) getOutMessage() *buffer.OutMessage {
    53  	c.mu.Lock()
    54  	x := (*buffer.OutMessage)(c.outMessages.Get())
    55  	c.mu.Unlock()
    56  
    57  	if x == nil {
    58  		x = new(buffer.OutMessage)
    59  	}
    60  	x.Reset()
    61  
    62  	return x
    63  }
    64  
    65  // LOCKS_EXCLUDED(c.mu)
    66  func (c *Connection) putOutMessage(x *buffer.OutMessage) {
    67  	c.mu.Lock()
    68  	c.outMessages.Put(unsafe.Pointer(x))
    69  	c.mu.Unlock()
    70  }