Merge "Update usage of activity manager service."

 * limitations under the License.

 * limitations under the License.

 */

 */

#include <unistd.h>

#include <binder/IActivityManager.h>

#include <binder/IBinder.h>

#include <binder/IBinder.h>

#include <binder/IServiceManager.h>

#include <binder/IServiceManager.h>

#include <binder/Parcel.h>

#include <utils/String8.h>

#include "ActivityManager.h"

#include "ActivityManager.h"

namespace android {

namespace android {

const uint32_t OPEN_CONTENT_URI_TRANSACTION = IBinder::FIRST_CALL_TRANSACTION;

// Perform ContentProvider.openFile() on the given URI, returning

// Perform ContentProvider.openFile() on the given URI, returning

// the resulting native file descriptor.  Returns < 0 on error.

// the resulting native file descriptor.  Returns < 0 on error.

int openContentProviderFile(const String16& uri)

int openContentProviderFile(const String16& uri)

    int fd = -1;

    int fd = -1;

    sp<IServiceManager> sm = defaultServiceManager();

    sp<IServiceManager> sm = defaultServiceManager();

    sp<IBinder> am = sm->getService(String16("activity"));

    sp<IBinder> binder = sm->getService(String16("activity"));

    sp<IActivityManager> am = interface_cast<IActivityManager>(binder);

    if (am != NULL) {

    if (am != NULL) {

        Parcel data, reply;

        fd = am->openContentUri(uri);

        data.writeInterfaceToken(String16("android.app.IActivityManager"));

        data.writeString16(uri);

        status_t ret = am->transact(OPEN_CONTENT_URI_TRANSACTION, data, &reply);

        if (ret == NO_ERROR) {

            int32_t exceptionCode = reply.readExceptionCode();

            if (!exceptionCode) {

                // Success is indicated here by a nonzero int followed by the fd;

                // failure by a zero int with no data following.

                if (reply.readInt32() != 0) {

                    fd = dup(reply.readFileDescriptor());

                }

            } else {

                // An exception was thrown back; fall through to return failure

                ALOGD("openContentUri(%s) caught exception %d\n",

                        String8(uri).string(), exceptionCode);

            }

        }

    }

    }

    return fd;

    return fd;