vm init/kill function is now public; restored mov player

tsvm_core/src/net/torvald/tsvm/VMSetupBroker.kt

@@ -0,0 +1,64 @@
+package net.torvald.tsvm
+
+import com.badlogic.gdx.utils.GdxRuntimeException
+import kotlinx.coroutines.GlobalScope
+import kotlinx.coroutines.Job
+import kotlinx.coroutines.cancel
+import kotlinx.coroutines.launch
+import net.torvald.tsvm.peripheral.GraphicsAdapter
+import net.torvald.tsvm.peripheral.ReferenceGraphicsAdapter2
+
+/**
+ * Created by minjaesong on 2022-12-15.
+ */
+object VMSetupBroker {
+
+    /**
+     * Standard function to start a VM.
+     *
+     * @param vm VM to initialise
+     * @param gpu Display device to attach
+     * @param vmRunners Hashmap on the host of VMs that holds the instances of the VMRunners for the given VM. Key: Int(VM's identifier), value: [net.torvald.tsvm.VMRunner]
+     * @param coroutineJobs Hashmap on the host of VMs that holds the coroutine-job object for the currently running VM-instance. Key: Int(VM's identifier), value: [kotlinx.coroutines.Job]
+     */
+    fun initVMenv(vm: VM, gpu: GraphicsAdapter, vmRunners: HashMap<Int, VMRunner>, coroutineJobs: HashMap<Int, Job>) {
+        vm.init()
+
+        try {
+            vm.peripheralTable.getOrNull(1)?.peripheral?.dispose()
+        }
+        catch (_: GdxRuntimeException) {} // pixmap already disposed
+
+        vm.peripheralTable[1] = PeripheralEntry(gpu)//, GraphicsAdapter.VRAM_SIZE, 16, 0)
+
+        vm.getPrintStream = { gpu.getPrintStream() }
+        vm.getErrorStream = { gpu.getErrorStream() }
+        vm.getInputStream = { gpu.getInputStream() }
+
+        vmRunners[vm.id] = VMRunnerFactory(vm.assetsDir, vm, "js")
+        coroutineJobs[vm.id] = GlobalScope.launch { vmRunners[vm.id]?.executeCommand(vm.roms[0]!!.readAll()) }
+    }
+
+    /**
+     * Standard function to stop a VM. The VM will be in "ready" state for the next initialisation.
+     *
+     * @param vm VM to initialise
+     * @param vmRunners Hashmap on the host of VMs that holds the instances of the VMRunners for the given VM. Key: Int(VM's identifier), value: [net.torvald.tsvm.VMRunner]
+     * @param coroutineJobs Hashmap on the host of VMs that holds the coroutine-job object for the currently running VM-instance. Key: Int(VM's identifier), value: [kotlinx.coroutines.Job]
+     */
+    fun killVMenv(vm: VM, vmRunners: HashMap<Int, VMRunner>, coroutineJobs: HashMap<Int, Job>) {
+        vm.park()
+
+        for (i in 1 until vm.peripheralTable.size) {
+            vm.peripheralTable[i].peripheral?.dispose()
+        }
+
+        vm.getPrintStream = { TODO() }
+        vm.getErrorStream = { TODO() }
+        vm.getInputStream = { TODO() }
+
+        vmRunners[vm.id]?.close()
+        coroutineJobs[vm.id]?.cancel("VM kill command received")
+    }
+
+}