static files_struct *irix_oplock_receive_message(struct kernel_oplocks *_ctx)
{
struct irix_oplocks_context *ctx = talloc_get_type(_ctx->private_data,
struct irix_oplocks_context);
oplock_stat_t os;
char dummy;
struct file_id fileid;
files_struct *fsp;
/*
* TODO: is it correct to assume we only get one
* oplock break, for each byte we read from the pipe?
*/
ctx->pending = false;
/*
* Read one byte of zero to clear the
* kernel break notify message.
*/
if(read(ctx->read_fd, &dummy, 1) != 1) {
DEBUG(0,("irix_oplock_receive_message: read of kernel "
"notification failed. Error was %s.\n",
strerror(errno) ));
return NULL;
}
/*
* Do a query to get the
* device and inode of the file that has the break
* request outstanding.
*/
if(sys_fcntl_ptr(ctx->read_fd, F_OPLKSTAT, &os) < 0) {
DEBUG(0,("irix_oplock_receive_message: fcntl of kernel "
"notification failed. Error was %s.\n",
strerror(errno) ));
if(errno == EAGAIN) {
/*
* Duplicate kernel break message - ignore.
*/
return NULL;
}
return NULL;
}
/*
* We only have device and inode info here - we have to guess that this
* is the first fsp open with this dev,ino pair.
*
* NOTE: this doesn't work if any VFS modules overloads
* the file_id_create() hook!
*/
fileid = file_id_create_dev((SMB_DEV_T)os.os_dev,
(SMB_INO_T)os.os_ino);
if ((fsp = file_find_di_first(smbd_server_conn, fileid)) == NULL) {
DEBUG(0,("irix_oplock_receive_message: unable to find open "
"file with dev = %x, inode = %.0f\n",
(unsigned int)os.os_dev, (double)os.os_ino ));
return NULL;
}
DEBUG(5,("irix_oplock_receive_message: kernel oplock break request "
"received for file_id %s gen_id = %ul",
file_id_string_tos(&fsp->file_id),
fsp->fh->gen_id ));
return fsp;
}
static files_struct *irix_oplock_receive_message(fd_set *fds)
{
extern int smb_read_error;
oplock_stat_t os;
char dummy;
files_struct *fsp;
/* Ensure we only get one call per select fd set. */
FD_CLR(oplock_pipe_read, fds);
/*
* Read one byte of zero to clear the
* kernel break notify message.
*/
if(read(oplock_pipe_read, &dummy, 1) != 1) {
DEBUG(0,("irix_oplock_receive_message: read of kernel "
"notification failed. Error was %s.\n",
strerror(errno) ));
smb_read_error = READ_ERROR;
return NULL;
}
/*
* Do a query to get the
* device and inode of the file that has the break
* request outstanding.
*/
if(sys_fcntl_ptr(oplock_pipe_read, F_OPLKSTAT, &os) < 0) {
DEBUG(0,("irix_oplock_receive_message: fcntl of kernel "
"notification failed. Error was %s.\n",
strerror(errno) ));
if(errno == EAGAIN) {
/*
* Duplicate kernel break message - ignore.
*/
return NULL;
}
smb_read_error = READ_ERROR;
return NULL;
}
/*
* We only have device and inode info here - we have to guess that this
* is the first fsp open with this dev,ino pair.
*/
if ((fsp = file_find_di_first((SMB_DEV_T)os.os_dev,
(SMB_INO_T)os.os_ino)) == NULL) {
DEBUG(0,("irix_oplock_receive_message: unable to find open "
"file with dev = %x, inode = %.0f\n",
(unsigned int)os.os_dev, (double)os.os_ino ));
return NULL;
}
DEBUG(5,("irix_oplock_receive_message: kernel oplock break request "
"received for dev = %x, inode = %.0f\n, file_id = %ul",
(unsigned int)fsp->dev, (double)fsp->inode,
fsp->fh->file_id ));
return fsp;
}
