// wrapper for C.CFDictionaryCreate, since referencing the callbacks in 2 separate files
// seems to be triggering some sort of "redefinition" error in cgo
func createCFDictionary(keys, values []cfTypeRef) C.CFDictionaryRef {
if len(keys) != len(values) {
panic("plist: unexpected length difference between keys and values")
}
var keyPtr, valPtr *unsafe.Pointer
if len(keys) > 0 {
keyPtr = (*unsafe.Pointer)(&keys[0])
valPtr = (*unsafe.Pointer)(&values[0])
}
keyCallbacks := (*C.CFDictionaryKeyCallBacks)(&C.kCFTypeDictionaryKeyCallBacks)
valCallbacks := (*C.CFDictionaryValueCallBacks)(&C.kCFTypeDictionaryValueCallBacks)
return C.CFDictionaryCreate(nil, keyPtr, valPtr, C.CFIndex(len(keys)), keyCallbacks, valCallbacks)
}
// The returned CFDictionaryRef, if non-nil, must be released via CFRelease.
func mapToCFDictionary(m map[C.CFTypeRef]C.CFTypeRef) C.CFDictionaryRef {
var keys, values []unsafe.Pointer
for key, value := range m {
keys = append(keys, unsafe.Pointer(key))
values = append(values, unsafe.Pointer(value))
}
numValues := len(values)
var keysPointer, valuesPointer *unsafe.Pointer
if numValues > 0 {
keysPointer = &keys[0]
valuesPointer = &values[0]
}
return C.CFDictionaryCreate(nil, keysPointer, valuesPointer, C.CFIndex(numValues), &C.kCFTypeDictionaryKeyCallBacks, &C.kCFTypeDictionaryValueCallBacks)
}
// MapToCFDictionary will return a CFDictionaryRef and if non-nil, must be
// released with Release(ref).
func MapToCFDictionary(m map[C.CFTypeRef]C.CFTypeRef) (C.CFDictionaryRef, error) {
var keys, values []unsafe.Pointer
for key, value := range m {
keys = append(keys, unsafe.Pointer(key))
values = append(values, unsafe.Pointer(value))
}
numValues := len(values)
var keysPointer, valuesPointer *unsafe.Pointer
if numValues > 0 {
keysPointer = &keys[0]
valuesPointer = &values[0]
}
cfDict := C.CFDictionaryCreate(nil, keysPointer, valuesPointer, C.CFIndex(numValues), &C.kCFTypeDictionaryKeyCallBacks, &C.kCFTypeDictionaryValueCallBacks)
if cfDict == nil {
return nil, fmt.Errorf("CFDictionaryCreate failed")
}
return cfDict, nil
}