off_t _Seek(int fildes, off_t offset, int whence)
{
struct anvil_seek_msg smsg;
smsg.offset = offset;
smsg.whence = whence;
return msg_rpc_port(fildes, ANVIL_SEEK, &smsg, sizeof(smsg), NULL, 0);
}
ace_buffer_t *ace_buffer_create(ace_connection_t *connection, size_t size)
{
ace_buffer_t *buf;
struct ace_buf_create_msg bufcreatemsg;
struct ace_buf_create_rpy bufcreaterpy;
int err;
/* Now create the buffer structure */
if ((buf = (ace_buffer_t *)malloc(sizeof(ace_buffer_t))) == NULL)
{
return NULL;
}
/* Round the size up to the nearest page */
bufcreatemsg.size = __PAGEROUND(size);
if ((err = msg_rpc_port(connection->port, ACE_BUF_CREATE, &bufcreatemsg, sizeof(bufcreatemsg), &bufcreaterpy, sizeof(bufcreaterpy))) != 0)
{
free(buf);
errno = -err;
return NULL;
}
buf->size = size;
buf->pixel_buf = (uint32_t *)bufcreaterpy.vidmem;
buf->connection = connection;
//anvil_syslog(0, "ace_buffer_create: returning %d\n", connection->port);
return buf;
}
int _Close(int fildes) {
int ret;
if ((ret = msg_rpc_port(fildes, ANVIL_CLOSE, NULL, 0, NULL, 0)) < 0)
{
errno = EBADF;
}
/* Destroy the port */
msg_port_close(fildes);
return 0;
}
int _Fstat(int fildes, struct stat *buf)
{
struct anvil_stat_msg anvilstat;
anvilstat.flags = 0;
return msg_rpc_port(fildes, ANVIL_STAT, &anvilstat, sizeof(anvilstat), buf, sizeof(*buf));
}
