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buffer_callback_impl.go
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/
buffer_callback_impl.go
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package cronet
// #include <stdlib.h>
// #include <stdbool.h>
// #include <cronet_c.h>
// extern void cronetBufferCallbackOnDestroy(Cronet_BufferCallbackPtr self,Cronet_BufferPtr buffer);
import "C"
import (
"sync"
"unsafe"
)
func NewBufferCallback(callbackFunc BufferCallbackFunc) BufferCallback {
ptr := C.Cronet_BufferCallback_CreateWith((*[0]byte)(C.cronetBufferCallbackOnDestroy))
if callbackFunc != nil {
bufferCallbackAccess.Lock()
bufferCallbackMap[uintptr(unsafe.Pointer(ptr))] = callbackFunc
bufferCallbackAccess.Unlock()
}
return BufferCallback{ptr}
}
var (
bufferCallbackAccess sync.Mutex
bufferCallbackMap map[uintptr]BufferCallbackFunc
)
func init() {
bufferCallbackMap = make(map[uintptr]BufferCallbackFunc)
}
//export cronetBufferCallbackOnDestroy
func cronetBufferCallbackOnDestroy(self C.Cronet_BufferCallbackPtr, buffer C.Cronet_BufferPtr) {
ptrInt := uintptr(unsafe.Pointer(self))
bufferCallbackAccess.Lock()
callback := bufferCallbackMap[ptrInt]
delete(bufferCallbackMap, ptrInt)
bufferCallbackAccess.Unlock()
if callback != nil {
callback(BufferCallback{self}, Buffer{buffer})
}
}