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net_java_games_input_OSXHIDQueue.c

/*
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 * Copyright 2002 Sun Microsystems, Inc. All rights reserved.
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#include <IOKit/IOTypes.h>
#include <IOKit/IOKitLib.h>
#include <IOKit/IOCFPlugIn.h>
#include <IOKit/hid/IOHIDLib.h>
#include <IOKit/hid/IOHIDKeys.h>
#include <CoreFoundation/CoreFoundation.h>
#include "net_java_games_input_OSXHIDQueue.h"
#include "util.h"
#include "macosxutil.h"

JNIEXPORT void JNICALL Java_net_java_games_input_OSXHIDQueue_nOpen(JNIEnv *env, jclass unused, jlong address, jint queue_depth) {
    IOHIDQueueInterface **queue = (IOHIDQueueInterface **)(intptr_t)address;
      IOReturn ioReturnValue = (*queue)->create(queue, 0, queue_depth);
    if (ioReturnValue != kIOReturnSuccess) {
        throwIOException(env, "Queue open failed: %d\n", ioReturnValue);
        return;
    }
}

JNIEXPORT void JNICALL Java_net_java_games_input_OSXHIDQueue_nStart(JNIEnv *env, jclass unused, jlong address) {
    IOHIDQueueInterface **queue = (IOHIDQueueInterface **)(intptr_t)address;
      IOReturn ioReturnValue = (*queue)->start(queue);
    if (ioReturnValue != kIOReturnSuccess) {
        throwIOException(env, "Queue start failed: %d\n", ioReturnValue);
        return;
    }
}

JNIEXPORT void JNICALL Java_net_java_games_input_OSXHIDQueue_nStop(JNIEnv *env, jclass unused, jlong address) {
    IOHIDQueueInterface **queue = (IOHIDQueueInterface **)(intptr_t)address;
    IOReturn ioReturnValue = (*queue)->stop(queue);
    if (ioReturnValue != kIOReturnSuccess) {
        throwIOException(env, "Queue stop failed: %d\n", ioReturnValue);
        return;
    }
}

JNIEXPORT void JNICALL Java_net_java_games_input_OSXHIDQueue_nClose(JNIEnv *env, jclass unused, jlong address) {
    IOHIDQueueInterface **queue = (IOHIDQueueInterface **)(intptr_t)address;
    IOReturn ioReturnValue = (*queue)->dispose(queue);
    if (ioReturnValue != kIOReturnSuccess) {
        throwIOException(env, "Queue dispose failed: %d\n", ioReturnValue);
        return;
    }
}

JNIEXPORT void JNICALL Java_net_java_games_input_OSXHIDQueue_nReleaseQueue(JNIEnv *env, jclass unused, jlong address) {
    IOHIDQueueInterface **queue = (IOHIDQueueInterface **)(intptr_t)address;
    IOReturn ioReturnValue = (*queue)->Release(queue);
    if (ioReturnValue != kIOReturnSuccess) {
        throwIOException(env, "Queue Release failed: %d\n", ioReturnValue);
        return;
    }
}

JNIEXPORT void JNICALL Java_net_java_games_input_OSXHIDQueue_nAddElement(JNIEnv *env, jclass unused, jlong address, jlong cookie_address) {
    IOHIDQueueInterface **queue = (IOHIDQueueInterface **)(intptr_t)address;
    IOHIDElementCookie cookie = (IOHIDElementCookie)(intptr_t)cookie_address;

    IOReturn ioReturnValue = (*queue)->addElement(queue, cookie, 0);
    if (ioReturnValue != kIOReturnSuccess) {
        throwIOException(env, "Queue addElement failed: %d\n", ioReturnValue);
        return;
    }
}

JNIEXPORT void JNICALL Java_net_java_games_input_OSXHIDQueue_nRemoveElement(JNIEnv *env, jclass unused, jlong address, jlong cookie_address) {
    IOHIDQueueInterface **queue = (IOHIDQueueInterface **)(intptr_t)address;
    IOHIDElementCookie cookie = (IOHIDElementCookie)(intptr_t)cookie_address;

    IOReturn ioReturnValue = (*queue)->removeElement(queue, cookie);
    if (ioReturnValue != kIOReturnSuccess) {
        throwIOException(env, "Queue removeElement failed: %d\n", ioReturnValue);
        return;
    }
}


JNIEXPORT jboolean JNICALL Java_net_java_games_input_OSXHIDQueue_nGetNextEvent(JNIEnv *env, jclass unused, jlong address, jobject event_return) {
    IOHIDQueueInterface **queue = (IOHIDQueueInterface **)(intptr_t)address;
    IOHIDEventStruct event;

    AbsoluteTime zeroTime = {0, 0};
    IOReturn ioReturnValue = (*queue)->getNextEvent(queue, &event, zeroTime, 0);
    if (ioReturnValue == kIOReturnUnderrun) {
            return JNI_FALSE;
      } else if (ioReturnValue != kIOReturnSuccess) {
        throwIOException(env, "Queue getNextEvent failed: %d\n", ioReturnValue);
        return JNI_FALSE;
    }
    copyEvent(env, &event, event_return);
    if (event.longValue != NULL) {
        free(event.longValue);
    }
      return JNI_TRUE;
}

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