AArch64: Use long for pointers in MTP classes
For storing pointers, long is used in MTP classes,
as native pointers can be 64-bit.
In addition, some minor changes have been done
to conform with standard JNI practice (e.g. use
of jint instead of int in JNI function prototypes)
Change-Id: I67805547251722e7b77611d47d0bb632a64d3e6d
Signed-off-by: Ashok Bhat <ashok.bhat@arm.com>
Signed-off-by: Marcus Oakland <marcus.oakland@arm.com>
Signed-off-by: Kévin PETIT <kevin.petit@arm.com>
diff --git a/media/java/android/mtp/MtpDatabase.java b/media/java/android/mtp/MtpDatabase.java
index cf1238a..9ceefc3 100755
--- a/media/java/android/mtp/MtpDatabase.java
+++ b/media/java/android/mtp/MtpDatabase.java
@@ -1036,7 +1036,7 @@
}
// used by the JNI code
- private int mNativeContext;
+ private long mNativeContext;
private native final void native_setup();
private native final void native_finalize();
diff --git a/media/java/android/mtp/MtpDevice.java b/media/java/android/mtp/MtpDevice.java
index 3272fed..8310579 100644
--- a/media/java/android/mtp/MtpDevice.java
+++ b/media/java/android/mtp/MtpDevice.java
@@ -237,7 +237,7 @@
}
// used by the JNI code
- private int mNativeContext;
+ private long mNativeContext;
private native boolean native_open(String deviceName, int fd);
private native void native_close();
diff --git a/media/java/android/mtp/MtpServer.java b/media/java/android/mtp/MtpServer.java
index f561cc0..266f78e 100644
--- a/media/java/android/mtp/MtpServer.java
+++ b/media/java/android/mtp/MtpServer.java
@@ -22,7 +22,7 @@
*/
public class MtpServer implements Runnable {
- private int mNativeContext; // accessed by native methods
+ private long mNativeContext; // accessed by native methods
static {
System.loadLibrary("media_jni");
diff --git a/media/jni/android_mtp_MtpDatabase.cpp b/media/jni/android_mtp_MtpDatabase.cpp
index 77c7966..72ce3cc 100644
--- a/media/jni/android_mtp_MtpDatabase.cpp
+++ b/media/jni/android_mtp_MtpDatabase.cpp
@@ -77,7 +77,7 @@
MtpDatabase* getMtpDatabase(JNIEnv *env, jobject database) {
- return (MtpDatabase *)env->GetIntField(database, field_context);
+ return (MtpDatabase *)env->GetLongField(database, field_context);
}
// ----------------------------------------------------------------------------
@@ -1075,17 +1075,17 @@
android_mtp_MtpDatabase_setup(JNIEnv *env, jobject thiz)
{
MyMtpDatabase* database = new MyMtpDatabase(env, thiz);
- env->SetIntField(thiz, field_context, (int)database);
+ env->SetLongField(thiz, field_context, (jlong)database);
checkAndClearExceptionFromCallback(env, __FUNCTION__);
}
static void
android_mtp_MtpDatabase_finalize(JNIEnv *env, jobject thiz)
{
- MyMtpDatabase* database = (MyMtpDatabase *)env->GetIntField(thiz, field_context);
+ MyMtpDatabase* database = (MyMtpDatabase *)env->GetLongField(thiz, field_context);
database->cleanup(env);
delete database;
- env->SetIntField(thiz, field_context, 0);
+ env->SetLongField(thiz, field_context, 0);
checkAndClearExceptionFromCallback(env, __FUNCTION__);
}
@@ -1217,7 +1217,7 @@
return -1;
}
- field_context = env->GetFieldID(clazz, "mNativeContext", "I");
+ field_context = env->GetFieldID(clazz, "mNativeContext", "J");
if (field_context == NULL) {
ALOGE("Can't find MtpDatabase.mNativeContext");
return -1;
diff --git a/media/jni/android_mtp_MtpDevice.cpp b/media/jni/android_mtp_MtpDevice.cpp
index b61b66c..8e013a0 100644
--- a/media/jni/android_mtp_MtpDevice.cpp
+++ b/media/jni/android_mtp_MtpDevice.cpp
@@ -88,7 +88,7 @@
MtpDevice* get_device_from_object(JNIEnv* env, jobject javaDevice)
{
- return (MtpDevice*)env->GetIntField(javaDevice, field_context);
+ return (MtpDevice*)env->GetLongField(javaDevice, field_context);
}
static void checkAndClearExceptionFromCallback(JNIEnv* env, const char* methodName) {
@@ -106,15 +106,15 @@
{
const char *deviceNameStr = env->GetStringUTFChars(deviceName, NULL);
if (deviceNameStr == NULL) {
- return false;
+ return JNI_FALSE;
}
MtpDevice* device = MtpDevice::open(deviceNameStr, fd);
env->ReleaseStringUTFChars(deviceName, deviceNameStr);
if (device)
- env->SetIntField(thiz, field_context, (int)device);
- return (device != NULL);
+ env->SetLongField(thiz, field_context, (jlong)device);
+ return (jboolean)(device != NULL);
}
static void
@@ -124,7 +124,7 @@
if (device) {
device->close();
delete device;
- env->SetIntField(thiz, field_context, 0);
+ env->SetLongField(thiz, field_context, 0);
}
}
@@ -356,10 +356,11 @@
android_mtp_MtpDevice_delete_object(JNIEnv *env, jobject thiz, jint object_id)
{
MtpDevice* device = get_device_from_object(env, thiz);
- if (device)
- return device->deleteObject(object_id);
- else
- return NULL;
+ if (device && device->deleteObject(object_id)) {
+ return JNI_TRUE;
+ } else {
+ return JNI_FALSE;
+ }
}
static jlong
@@ -367,7 +368,7 @@
{
MtpDevice* device = get_device_from_object(env, thiz);
if (device)
- return device->getParent(object_id);
+ return (jlong)device->getParent(object_id);
else
return -1;
}
@@ -377,7 +378,7 @@
{
MtpDevice* device = get_device_from_object(env, thiz);
if (device)
- return device->getStorageID(object_id);
+ return (jlong)device->getStorageID(object_id);
else
return -1;
}
@@ -389,15 +390,15 @@
if (device) {
const char *destPathStr = env->GetStringUTFChars(dest_path, NULL);
if (destPathStr == NULL) {
- return false;
+ return JNI_FALSE;
}
- bool result = device->readObject(object_id, destPathStr, AID_SDCARD_RW, 0664);
+ jboolean result = device->readObject(object_id, destPathStr, AID_SDCARD_RW, 0664);
env->ReleaseStringUTFChars(dest_path, destPathStr);
return result;
}
- return false;
+ return JNI_FALSE;
}
// ----------------------------------------------------------------------------
@@ -618,7 +619,7 @@
ALOGE("Can't find android/mtp/MtpDevice");
return -1;
}
- field_context = env->GetFieldID(clazz, "mNativeContext", "I");
+ field_context = env->GetFieldID(clazz, "mNativeContext", "J");
if (field_context == NULL) {
ALOGE("Can't find MtpDevice.mNativeContext");
return -1;
diff --git a/media/jni/android_mtp_MtpServer.cpp b/media/jni/android_mtp_MtpServer.cpp
index 5252a3a..9d7f1c2 100644
--- a/media/jni/android_mtp_MtpServer.cpp
+++ b/media/jni/android_mtp_MtpServer.cpp
@@ -53,7 +53,7 @@
extern MtpDatabase* getMtpDatabase(JNIEnv *env, jobject database);
static inline MtpServer* getMtpServer(JNIEnv *env, jobject thiz) {
- return (MtpServer*)env->GetIntField(thiz, field_MtpServer_nativeContext);
+ return (MtpServer*)env->GetLongField(thiz, field_MtpServer_nativeContext);
}
static void
@@ -63,7 +63,7 @@
if (fd >= 0) {
MtpServer* server = new MtpServer(fd, getMtpDatabase(env, javaDatabase),
usePtp, AID_MEDIA_RW, 0664, 0775);
- env->SetIntField(thiz, field_MtpServer_nativeContext, (int)server);
+ env->SetLongField(thiz, field_MtpServer_nativeContext, (jlong)server);
} else {
ALOGE("could not open MTP driver, errno: %d", errno);
}
@@ -87,7 +87,7 @@
MtpServer* server = getMtpServer(env, thiz);
if (server) {
delete server;
- env->SetIntField(thiz, field_MtpServer_nativeContext, 0);
+ env->SetLongField(thiz, field_MtpServer_nativeContext, 0);
} else {
ALOGE("server is null in cleanup");
}
@@ -226,7 +226,7 @@
ALOGE("Can't find android/mtp/MtpServer");
return -1;
}
- field_MtpServer_nativeContext = env->GetFieldID(clazz, "mNativeContext", "I");
+ field_MtpServer_nativeContext = env->GetFieldID(clazz, "mNativeContext", "J");
if (field_MtpServer_nativeContext == NULL) {
ALOGE("Can't find MtpServer.mNativeContext");
return -1;