| Commit message (Collapse) | Author | Age | Files | Lines |
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the private data area.
This commit adds new APIs for walking over the keys and pointers in
the private data area associated with each handle (note this is only
applicable to the C API).
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The FHS advises large files not to be stored in the root
filesystem[1], and that /var/tmp is persistent across reboots[2]
(whereas /tmp is possibly not[3]).
Therefore we should store the large cached supermin appliance in
/var/tmp instead of /tmp. /tmp is still used for all other temporary
files and directories.
In either case you can override this by setting $TMPDIR.
[1] http://www.pathname.com/fhs/pub/fhs-2.3.html#THEROOTFILESYSTEM
[2] http://www.pathname.com/fhs/pub/fhs-2.3.html#VARTMPTEMPORARYFILESPRESERVEDBETWEE
[3] http://www.pathname.com/fhs/pub/fhs-2.3.html#TMPTEMPORARYFILES
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For examples of the virt-inspector output, see the additional
inspector/example-*.xml files in this commit.
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Relatively trivial wrappers around the equivalent guestfish
commands. Change also includes new man pages.
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Add a new section called "EXTENDING LIBGUESTFS" to the
guestfs manual page which contains all the information
previously in "HACKING".
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Two unrelated changes to the protocol to support progress
messages during uploads, and optional arguments.
Note that this makes an incompatible change to the protocol,
and this is reflected in the protocol version field (3 -> 4).
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This tool replaces virt-list-filesystems and virt-list-partitions with
a new tool written in C with a more uniform command line structure
and output.
This existing Perl tools are deprecated but remain indefinitely.
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This returns the hostname of the guest. Tested on RHEL, Fedora,
Debian 5, Ubuntu 10.10, FreeBSD 8, Windows 7.
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This converts the current Perl code in virt-inspector for
listing applications, into C, making it a part of the core API.
This is also capable of fetching the list of Windows applications
from the registry.
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This rearranges the sections into a more logical order:
- synopsis and introduction
- API-related overview sections
- (security will go here, see next commit)
- API in detail
- architecture and other internals
- usual end sections
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If either the daemon sends back an errno, or a system call
fails in the library, save the errno in the handle and then
make it available to callers through the guestfs_last_errno
function.
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This changes the protocol again so that if the errno is available,
it is converted to a string (like "EIO") and sent back over the
protocol to the library.
In this commit the library just discards the string.
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This large commit changes the generator so that optional arguments
can be supported for functions.
The model for arguments (known as the "style") is changed from
(ret, args) to (ret, args, optargs) where optargs is a more limited
list of arguments.
One function has been added which takes optional arguments, it is
"add-drive-opts", modelled as:
(RErr, [String "filename"], #required
[Bool "readonly"; String "format"; String "iface"]) #optional
Note that this function is processed in the library (does not go over
the RPC protocol to the daemon). This has allowed us to simplify
the current implementation by omitting changes related to RPC or the
daemon, although we plan to add these at some point in the future.
From C this function can be called in 3 different ways as in these
examples:
guestfs_add_drive_opts (g, filename,
GUESTFS_ADD_DRIVE_OPTS_READONLY, 1,
GUESTFS_ADD_DRIVE_OPTS_FORMAT, "raw",
-1);
(the argument(s) between 'filename' and '-1' are the optional ones).
guestfs_add_drive_opts_va (g, filename, args);
where 'args' is a va_list. This works like the first version.
struct guestfs_add_drive_opts_argv optargs = {
.bitmask = GUESTFS_ADD_DRIVE_OPTS_READONLY_BITMASK,
.readonly = 1,
}
guestfs_add_drive_opts_argv (g, filename, &optargs);
This last form lets you construct lists of optional arguments, and
is used by guestfish and the language bindings.
In guestfish optional arguments are used like this:
add-drive-opts filename readonly:true
In OCaml these are mapped naturally to OCaml optional arguments, eg:
g#add_drive_opts ~readonly:true filename;
In Perl these are mapped to extra arguments, eg:
$g->add_drive_opts ($filename, readonly => 1);
In Python these are mapped to optional arguments, eg:
g.add_drive_opts ("file", readonly = 1, format = "qcow2")
In Ruby these are mapped to a final hash argument, eg:
g.add_drive_opts("file", {})
g.add_drive_opts("file", :readonly => 1)
g.add_drive_opts("file", :readonly => 1, :iface => "virtio")
In PHP these are mapped to extra parameters. This is not quite
accurate since you cannot omit arbitrary optional parameters, but
there's not much than can be done within the limitations of PHP
as a language.
Unimplemented in: Haskell, C#, Java.
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Note that these are not complete on 32 bit architectures. PHP doesn't
offer any convenient 64 bit type (on 32 bit). Therefore you should
always use these PHP bindings on 64 bit.
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The actions each have a corresponding define, eg:
#define LIBGUESTFS_HAVE_VGUUID 1
extern char *guestfs_vguuid (guestfs_h *g, const char *vgname);
However functions which are for testing, debugging or deprecated do
not have the corresponding define. Also a few functions are so
basic (eg. guestfs_create) that there is no point defining a symbol
for them.
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We inconsistently used 'void *data' or 'void *opaque' all over to
refer to the same thing. Use 'void *opaque' in all places in the
published API and documentation.
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The private data area is a hash table which is associated with
libguestfs handles, that C callers may use to store arbitrary
data for the lifetime of the handle.
Later the OCaml bindings will use this in order to implement
callbacks.
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This implements progress notification messages in the daemon, and
adds a callback in the library to handle them.
No calls are changed so far, so in fact no progress messages can
be generated by this commit.
For more details, see:
https://www.redhat.com/archives/libguestfs/2010-July/msg00003.html
https://www.redhat.com/archives/libguestfs/2010-July/msg00024.html
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guestfs_set_network (g, true) enables network support in the appliance.
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This changes the protocol so that the Linux errno (if available)
is sent back to the library. Note that the errno is not yet
made available to callers, since it is not clear how best to
present this Linux-specific number.
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