Merge "No more ashmem equivalent checker false alarm"

#include "SensorDirectConnection.h"

#include <hardware/sensors.h>

#include <sys/stat.h>

#define UNUSED(x) (void)(x)

namespace android {

    if (mMem.type == mem->type) {

        switch (mMem.type) {

            case SENSOR_DIRECT_MEM_TYPE_ASHMEM: {

                struct stat s1, s2;

                int fd1, fd2;

                fd1 = mMem.handle->data[0];

                fd2 = mem->handle->data[0];

                if (fstat(fd1, &s1) < 0 || fstat(fd2, &s2) < 0 || s1.st_ino == s2.st_ino) {

                    ret = true;

                }

                // there is no known method to test if two ashmem fds are equivalent besides

                // trivially comparing the fd values (ino number from fstat() are always the

                // same, pointing to "/dev/ashmem").

                int fd1 = mMem.handle->data[0];

                int fd2 = mem->handle->data[0];

                ret = (fd1 == fd2);

                break;

            }

            case SENSOR_DIRECT_MEM_TYPE_GRALLOC: