static void linux_oplock_signal_handler(struct tevent_context *ev_ctx,
struct tevent_signal *se,
int signum, int count,
void *_info, void *private_data)
{
siginfo_t *info = (siginfo_t *)_info;
int fd = info->si_fd;
files_struct *fsp;
fsp = file_find_fd(smbd_server_conn, fd);
if (fsp == NULL) {
DEBUG(0,("linux_oplock_signal_handler: failed to find fsp for file fd=%d (file was closed ?)\n", fd ));
return;
}
break_kernel_oplock(fsp->conn->sconn->msg_ctx, fsp);
}
static BOOL linux_oplock_receive_message(fd_set *fds, char *buffer, int buffer_len)
{
int fd;
struct files_struct *fsp;
BlockSignals(True, RT_SIGNAL_LEASE);
fd = fd_pending_array[0];
fsp = file_find_fd(fd);
fd_pending_array[0] = (SIG_ATOMIC_T)-1;
if (signals_received > 1)
memmove((void *)&fd_pending_array[0], (void *)&fd_pending_array[1],
sizeof(SIG_ATOMIC_T)*(signals_received-1));
signals_received--;
/* now we can receive more signals */
BlockSignals(False, RT_SIGNAL_LEASE);
if (fsp == NULL) {
DEBUG(0,("Invalid file descriptor %d in kernel oplock break!\n", (int)fd));
return False;
}
DEBUG(3,("linux_oplock_receive_message: kernel oplock break request received for \
dev = %x, inode = %.0f fd = %d, fileid = %lu \n", (unsigned int)fsp->dev, (double)fsp->inode,
fd, fsp->file_id));
/*
* Create a kernel oplock break message.
*/
/* Setup the message header */
SIVAL(buffer,OPBRK_CMD_LEN_OFFSET,KERNEL_OPLOCK_BREAK_MSG_LEN);
SSVAL(buffer,OPBRK_CMD_PORT_OFFSET,0);
buffer += OPBRK_CMD_HEADER_LEN;
SSVAL(buffer,OPBRK_MESSAGE_CMD_OFFSET,KERNEL_OPLOCK_BREAK_CMD);
memcpy(buffer + KERNEL_OPLOCK_BREAK_DEV_OFFSET, (char *)&fsp->dev, sizeof(fsp->dev));
memcpy(buffer + KERNEL_OPLOCK_BREAK_INODE_OFFSET, (char *)&fsp->inode, sizeof(fsp->inode));
memcpy(buffer + KERNEL_OPLOCK_BREAK_FILEID_OFFSET, (char *)&fsp->file_id, sizeof(fsp->file_id));
return True;
}
