Add a new function nfs_statvfs64() that returns a struct nfs_statvfs_64
where all fields are uint64_t.
Signed-off-by: Ronnie Sahlberg <ronniesahlberg@gmail.com>
Add two arguments to set which port to use for MOUNT (only used in NFSv3)
as well as for the NFS protocols.
When set to non-zero libnfs will connect directly to that port and bypass
the use of portmapper completely.
Signed-off-by: Ronnie Sahlberg <ronniesahlberg@gmail.com>
Pass mode all the way down to nfs*_open_async() but we do not yet have any
plumbing to actually use it. That will come later as we implement O_CREAT
support.
Signed-off-by: Ronnie Sahlberg <ronniesahlberg@gmail.com>
This only allow selecting the version for the context.
There is still no real v4 support and all I/O is still using v3.
Signed-off-by: Ronnie Sahlberg <ronniesahlberg@gmail.com>
This allows us to use the NULL function for any arbitrary
program/version from rpc_connect_program() instead of the hardcoded support
for mount v3 and nfs v3
Signed-off-by: Ronnie Sahlberg <ronniesahlberg@gmail.com>
this adds support for a simple read cache to avoid unnecassary request
to the NFS storage. libnfs by design cannot benefit from the kernel page
cache and suffers from performance penalties in some cases when compared
with a file accessed via kernel NFS.
This patch exposes 3 new API calls:
void nfs_set_pagecache(struct nfs_context *nfs, uint32_t v);
void nfs_set_pagecache_ttl(struct nfs_context *nfs, uint32_t v);
void nfs_pagecache_invalidate(struct nfs_context *nfs, struct nfsfh *nfsfh);
As well as the two new URL parameters pagecache and pagecache_ttl.
pagecache is defined in number of pages where a page is always NFS_BLKSIZE (4kB).
pagecache_ttl takes the page timeout in seconds where 0 means infinite.
Signed-off-by: Peter Lieven <pl@kamp.de>
Add support to timeout sync functions.
Add a field to the rpc context to specify the timeout for functions.
Currently only sync functions support a timeout.
only logging to stderr is supported at the moment. Per default
there is no output. Its possible to set the log level via
debug url parameter.
Example:
nfs-ls nfs://127.0.0.1/export?debug=2
Signed-off-by: Peter Lieven <pl@kamp.de>
This patch add support for an internal readahead machanism. The maximum readahead
size can be specified via URL parameter readahead. This should significantly
speed up small sequential reads.
Signed-off-by: Peter Lieven <pl@kamp.de>
This is mainly needed when having to track and control the file descriptors that are used by libnfs, for example when trying to emulate dup2() ontop
of libnfs.
Add chdir and getcwd and store cwd in the nfs_context.
Add functions to process the paths specified and normalize them
by performing the transforms :
// -> /
/./ -> /
^/../ -> error
^[^/] -> error
/string/../ -> /
/$ -> \0
/.$ -> \0
^/..$ -> error
/string/..$ -> /
Update the path lookup function to allow specifying relative paths based on
cwd for all functions.
Add chdir and getcwd and store cwd in the nfs_context.
Add functions to process the paths specified and normalize them
by performing the transforms :
// -> /
/./ -> /
^/../ -> error
^[^/] -> error
/string/../ -> /
/$ -> \0
/.$ -> \0
^/..$ -> error
/string/..$ -> /
Update the path lookup function to allow specifying relative paths based on
cwd for all functions.
Ronnie Sahlberg