Implement thread lock acquire/release.

Author: fangerer

graalpython/com.oracle.graal.python.cext/src/ceval.c

@@ -61,3 +61,13 @@ UPCALL_ID(PyThread_allocate_lock);
 void* PyThread_allocate_lock() {
     return UPCALL_CEXT_O(_jls_PyThread_allocate_lock);
 }
+
+UPCALL_ID(PyThread_acquire_lock);
+int PyThread_acquire_lock(PyThread_type_lock aLock, int waitflag) {
+    return UPCALL_CEXT_O(_jls_PyThread_acquire_lock, native_to_java(aLock), waitflag ? -1 : 0);
+}
+
+UPCALL_ID(PyThread_release_lock);
+void PyThread_release_lock(PyThread_type_lock aLock) {
+    UPCALL_CEXT_O(_jls_PyThread_release_lock, native_to_java(aLock));
+}

graalpython/lib-graalpython/python_cext.py

@@ -1304,6 +1304,16 @@ def PyThread_allocate_lock():
     return _thread.allocate_lock()
 
 
+@may_raise
+def PyThread_acquire_lock(lock, waitflag):
+    return lock.acquire(waitflag)
+
+
+@may_raise
+def PyThread_release_lock(lock):
+    return lock.release()
+
+
 @may_raise
 def PySlice_GetIndicesEx(start, stop, step, length):
     return PyTruffleSlice_GetIndicesEx(start, stop, step, length)