63 lines
1.2 KiB
Go
63 lines
1.2 KiB
Go
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// Copyright (C) 2017. See AUTHORS.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package openssl
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import (
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"sync"
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"unsafe"
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)
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// #include <stdlib.h>
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import "C"
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type mapping struct {
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lock sync.Mutex
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values map[token]unsafe.Pointer
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}
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func newMapping() *mapping {
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return &mapping{
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values: make(map[token]unsafe.Pointer),
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}
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}
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type token unsafe.Pointer
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func (m *mapping) Add(x unsafe.Pointer) token {
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res := token(C.malloc(1))
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m.lock.Lock()
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m.values[res] = x
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m.lock.Unlock()
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return res
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}
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func (m *mapping) Get(x token) unsafe.Pointer {
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m.lock.Lock()
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res := m.values[x]
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m.lock.Unlock()
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return res
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}
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func (m *mapping) Del(x token) {
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m.lock.Lock()
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delete(m.values, x)
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m.lock.Unlock()
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C.free(unsafe.Pointer(x))
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}
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