github.com/matrixorigin/matrixone@v1.2.0/pkg/common/malloc/handle.go (about)

     1  // Copyright 2022 Matrix Origin
     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 malloc
    16  
    17  import "unsafe"
    18  
    19  type Handle struct {
    20  	ptr   unsafe.Pointer
    21  	class int
    22  }
    23  
    24  var dumbHandle = &Handle{
    25  	class: -1,
    26  }
    27  
    28  func (h *Handle) Free() {
    29  	if h.class < 0 {
    30  		return
    31  	}
    32  	pid := runtime_procPin()
    33  	runtime_procUnpin()
    34  	shard := pid % numShards
    35  	select {
    36  	case shards[shard].pools[h.class] <- h:
    37  		shards[shard].numFree.Add(1)
    38  	default:
    39  	}
    40  }