jvmMain.fr.acinq.secp256k1.Secp256k1Jvm.kt Maven / Gradle / Ivy
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Bitcoin's secp256k1 library ported to Kotlin/Multiplatform for JVM, Android, iOS (+ x64 and arm64 simulator), macOS, watchOS, tvOS & Linux
The newest version!
/*
* Copyright 2020 ACINQ SAS
*
* 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 fr.acinq.secp256k1
import java.util.*
private fun tryLoad(platform: String): Secp256k1? {
return try {
val cls = Class.forName("fr.acinq.secp256k1.jni.NativeSecp256k1${platform.replaceFirstChar { if (it.isLowerCase()) it.titlecase(Locale.ROOT) else it.toString() }}Loader")
val load = cls.getMethod("load")
load.invoke(null) as Secp256k1
} catch (ex: ClassNotFoundException) {
null
}
}
internal actual fun getSecpk256k1(): Secp256k1 =
tryLoad("android")
?: tryLoad("jvm")
?: error("Could not load native Secp256k1 JNI library. Have you added the JNI dependency?")