java.lang.Thread$_qbicc Maven / Gradle / Ivy
package java.lang;
import static org.qbicc.runtime.CNative.*;
import org.qbicc.runtime.Hidden;
import org.qbicc.runtime.ThreadScoped;
/**
* Logically these declarations belongs in Thread, however our patching/compiler support
* has some gaps that make delcaring them in a separate class expedient.
* 1. @ThreadScoped fields can't be declated on Thread (circular dependency)
* 2. The @Add annotation doesn't preserve the other annotations (like @export).
*/
class Thread$_qbicc {
/**
* Internal holder for the pointer to the current thread.
* Thread objects are not allowed to move in memory after being constructed.
*
* GC must take care to include this object in the root set of each thread.
*/
@ThreadScoped
@export
@SuppressWarnings("unused")
static Thread _qbicc_bound_java_thread;
/**
* A pointer to this function is passed to pthread_create by start0.
* The role of this wrapper is to transition a newly started Thread from C to Java calling
* conventions and then invoke the Thread's run0 method.
* @param threadParam - java.lang.Thread object for the newly started thread (cast to a void pointer to be compatible with pthread_create)
* @return null - this return value will not be used
*/
@export
@Hidden
static void_ptr qbiccThreadRunWrapper(void_ptr threadParam) {
Object thrObj = ptrToRef(threadParam);
_qbicc_bound_java_thread = (Thread)thrObj;
((Thread$_patch)thrObj).run0();
return word(0).cast();
}
}