zsu.kni.ksp.template.NativeEnvStoreImpl.kt Maven / Gradle / Ivy

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Auto JNI binding based on Kotlin Multiplatform

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package zsu.kni.ksp.template

import org.intellij.lang.annotations.Language

object NativeEnvStoreImpl : Template {
    @Language("kotlin")
    override fun create(packageName: String, simpleClassName: String, jniPackageName: String): String {
        return """
@file:OptIn(ExperimentalForeignApi::class, ExperimentalNativeApi::class)
package $packageName

import kotlinx.cinterop.*
import $jniPackageName.*
import zsu.kni.internal.native.NativeEnvStore
import kotlin.experimental.ExperimentalNativeApi

@CName(externName = "Java_zsu_kni_KniNativeThread_attach")
fun attach(
    jenv: CPointer,
    classRef: jclass,
    id: jint,
) {
    NativeEnvStore[id] = jenv
}

@CName(externName = "Java_zsu_kni_KniNativeThread_detach")
fun detach(
    jenv: CPointer,
    classRef: jclass,
    id: jint,
    sameJEnv: jint,
) {
    val isSameJEnv = sameJEnv == 0
    if (isSameJEnv) {
        val originJenvPtr: CPointer = NativeEnvStore[id]
        val originJenvValue = originJenvPtr.pointed
        val currentJenvValue = jenv.pointed
        NativeEnvStore.compareEnv(originJenvValue, currentJenvValue)
    }
    NativeEnvStore.remove(id)
}

@CName(externName = "Java_zsu_kni_KniNativeThread_detachAll")
fun detachAll(
    jenv: CPointer,
    classRef: jclass,
) {
    NativeEnvStore.clear()
}

        """
    }
}

private const val dollar = "\$"