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