void* producer(void* ptr)
{
Buffer* buf = (Buffer*)ptr;
while (1) {
int slot = write_start(buf);
if (slot == -1) {
printf(ANSI_GREEN"producer: no free space left in queue...waiting"ANSI_NORMAL"\n");
buffer_print(buf);
exit(-1);
usleep(producer_delay);
continue;
}
//printf(ANSI_GREEN"producer: slot %d"ANSI_NORMAL"\n", slot);
buffer_print(buf);
usleep(produce_duration);
write_done(buf);
buffer_print(buf);
}
return 0;
}
/* Write the specified number of bytes from the buffer buf to a given NFS file */
void
nfsfs_write(pid_t pid, VNode self, fildes_t file, L4_Word_t offset,
const char *buf, size_t nbyte, void (*write_done)(pid_t pid, VNode self,
fildes_t file, L4_Word_t offset, const char *buf, size_t nbyte, int status)) {
dprintf(1, "*** nfsfs_write: %p, %d, %d, %p, %d\n", self, file, offset, buf, nbyte);
NFS_File *nf = (NFS_File *) self->extra;
if (nf == NULL) {
dprintf(0, "!!! nfsfs_write: Invalid NFS file (p %d, f %d), no nfs struct!\n",
pid, file);
write_done(pid, self, file, offset, buf, 0, SOS_VFS_NOFILE);
return;
}
NFS_WriteRequest *rq = (NFS_WriteRequest *) create_request(RT_WRITE, self, pid);
rq->file = file;
rq->buf = (char *) buf;
rq->offset = offset;
rq->nbyte = nbyte;
rq->write_done = write_done;
check_request((NFS_BaseRequest *) rq);
}
void *aio_completion_handler (void *thread_data)
{
struct io_event events[AIO_MAXIO];
struct io_queue *this_io;
int num, i;
struct __arc_object *obj;
while (1)
{
num = io_getevents (ioctx, 1, AIO_MAXIO, events, NULL);
if (should_stop)
break;
// lfs_printf("\n%d io_request completed\n\n", num);
for (i = 0; i < num; i++)
{
this_io = (struct io_queue *) events[i].data;
if (events[i].res2 != 0)
{
lfs_printf ("aio write error \n");
}
if (events[i].obj != &this_io->iocb)
{
lfs_printf ("iocb is lost \n");
exit (1);
}
if (events[i].res != this_io->iocb.u.c.nbytes)
{
lfs_printf
("rw missed bytes expect % ld,got % ld res2=%d \n",
this_io->iocb.u.c.nbytes, events[i].res,
events[i].res2);
// exit (1);
}
if (this_io->item->fops == READ_COMMAND)
{
obj = this_io->item->obj;
arc_read_done (obj);
printf ("whats up");
}
else if (this_io->item->fops == WRITE_COMMAND)
{
write_done (this_io->item, LFS_SUCCESS);
}
}
pthread_mutex_lock (&IOCBQ_MUTEX);
for (i = 0; i < num; i++)
{
this_io = (struct io_queue *) events[i].data;
this_io->ref_cnt = 0;
}
pthread_mutex_unlock (&IOCBQ_MUTEX);
}
should_stop = 1;
pthread_exit (NULL);
}