void binder_loop(struct binder_state* bs, binder_handler func) {
int res;
struct binder_write_read bwr;
uint32_t readbuf[32];
bwr.write_size = 0;
bwr.write_consumed = 0;
bwr.write_buffer = 0;
readbuf[0] = BC_ENTER_LOOPER;
binder_write(bs, readbuf, sizeof(uint32_t));
for (;;) {
bwr.read_size = sizeof(readbuf);
bwr.read_consumed = 0;
bwr.read_buffer = (uintptr_t) readbuf;
res = ioctl(bs->fd, BINDER_WRITE_READ, &bwr);
if (res < 0) {
fprintf(stderr, "binder_loop: ioctl failed (%s)\n", strerror(errno));
break;
}
res = binder_parse(bs, 0, (uintptr_t) readbuf, bwr.read_consumed, func);
if (res == 0) {
fprintf(stderr, "binder_loop: unexpected reply?!\n");
break;
}
if (res < 0) {
fprintf(stderr, "binder_loop: io error %d %s\n", res, strerror(errno));
break;
}
}
}
int binder_call(struct binder_state *bs,
struct binder_io *msg, struct binder_io *reply,
void *target, uint32_t code)
{
int res;
struct binder_write_read bwr;
struct {
uint32_t cmd;
struct binder_txn txn;
} writebuf;
unsigned readbuf[32];
if (msg->flags & BIO_F_OVERFLOW) {
fprintf(stderr,"binder: txn buffer overflow\n");
goto fail;
}
writebuf.cmd = BC_TRANSACTION;
writebuf.txn.target = target;
writebuf.txn.code = code;
writebuf.txn.flags = 0;
writebuf.txn.data_size = msg->data - msg->data0;
writebuf.txn.offs_size = ((char*) msg->offs) - ((char*) msg->offs0);
writebuf.txn.data = msg->data0;
writebuf.txn.offs = msg->offs0;
bwr.write_size = sizeof(writebuf);
bwr.write_consumed = 0;
bwr.write_buffer = (unsigned) &writebuf;
hexdump(msg->data0, msg->data - msg->data0);
for (;;) {
bwr.read_size = sizeof(readbuf);
bwr.read_consumed = 0;
bwr.read_buffer = (unsigned) readbuf;
res = ioctl(bs->fd, BINDER_WRITE_READ, &bwr);
if (res < 0) {
fprintf(stderr,"binder: ioctl failed (%s)\n", strerror(errno));
goto fail;
}
res = binder_parse(bs, reply, readbuf, bwr.read_consumed, 0);
if (res == 0) return 0;
if (res < 0) goto fail;
}
fail:
memset(reply, 0, sizeof(*reply));
reply->flags |= BIO_F_IOERROR;
return -1;
}
void binder_loop(struct binder_state *bs, binder_handler func)
{
int res;
struct binder_write_read bwr;
unsigned readbuf[32];
bwr.write_size = 0;
bwr.write_consumed = 0;
bwr.write_buffer = 0;
readbuf[0] = BC_ENTER_LOOPER;
printf("binder_write start 0x%x\n", BC_ENTER_LOOPER);
binder_write(bs, readbuf, sizeof(unsigned));
printf("binder_write done\n");
for (;;) {
bwr.read_size = sizeof(readbuf);
bwr.read_consumed = 0;
bwr.read_buffer = (unsigned long) readbuf;
printf("ioctl BINDER_WRITE_READ start READ %ld, %ld, %ld\n", bwr.read_size, bwr.read_consumed, bwr.read_buffer);
printf("ioctl BINDER_WRITE_READ start WRITE %ld, %ld, %ld\n", bwr.write_size, bwr.write_consumed, bwr.write_buffer);
res = ioctl(bs->fd, BINDER_WRITE_READ, &bwr);
printf("ioctl BINDER_WRITE_READ done res %d\n", res);
if (res < 0) {
LOGE("binder_loop: ioctl failed (%d)\n", errno);
break;
}
res = binder_parse(bs, 0, readbuf, bwr.read_consumed, func);
if (res == 0) {
LOGE("binder_loop: unexpected reply?!\n");
break;
}
if (res < 0) {
LOGE("binder_loop: io error %d %d\n", res, errno);
break;
}
}
}
