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869b69ea3d
libvirt/src/vbox
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Eric Blake 869b69ea3d snapshot: implement snapshot roots listing in vbox 
Commit 9f5e53e introduced the ability to filter snapshots to
just roots, but it was never implemented for VBox until now.

The VBox implementation prohibits deletion of a snapshot with
multiple children.  Hence, there can only be at most one root,
which is found by searching for the snapshot with a NULL uuid.

Prior to 4.0, snapshotGet looked up by UUID, and snapshotFind
looked up by name; after that point, snapshotGet disappeared
and snapshotFind handles uuid or name.

* src/vbox/vbox_tmpl.c (vboxDomainSnapshotNum)
(vboxDomainSnapshotListNames): Implement limiting list to root.
2011-10-05 08:57:58 -06:00
..
README
vbox_CAPI_v2_2.h vbox: Handle different IID representation in Version 2.2 on Windows 2010-12-27 23:53:39 +01:00
vbox_CAPI_v3_0.h vbox: Match struct layout of the MSCOM implementation on Windows 2010-12-17 22:15:24 +01:00
vbox_CAPI_v3_1.h vbox: Match struct layout of the MSCOM implementation on Windows 2010-12-17 22:15:24 +01:00
vbox_CAPI_v3_2.h vbox: Match struct layout of the MSCOM implementation on Windows 2010-12-17 22:15:24 +01:00
vbox_CAPI_v4_0.h vbox: Add support for VirtualBox 4.0 2010-12-28 00:18:46 +01:00
vbox_driver.c vbox: reject unknown flags 2011-07-13 16:40:07 -06:00
vbox_driver.h build: consistently indent preprocessor directives 2010-03-09 19:22:28 +01:00
vbox_glue.c vbox: Add glue layer for MSCOM on Windows 2010-12-17 22:51:33 +01:00
vbox_glue.h vbox: Add glue layer for MSCOM on Windows 2010-12-17 22:51:33 +01:00
vbox_MSCOMGlue.c util: choose whether to require micro in version strings 2011-07-01 11:22:11 -06:00
vbox_MSCOMGlue.h vbox: Add support for VirtualBox 4.0 2010-12-28 00:18:46 +01:00
vbox_tmpl.c snapshot: implement snapshot roots listing in vbox 2011-10-05 08:57:58 -06:00
vbox_V2_2.c
vbox_V3_0.c Add support for VBox 3 and event callbacks on vbox 2009-07-24 18:12:16 +02:00
vbox_V3_1.c vbox: Add support for version 3.1 2009-12-04 14:49:45 +01:00
vbox_V3_2.c Support for VirtualBox version 3.2 2010-05-27 01:28:21 +02:00
vbox_V4_0.c vbox: Add support for VirtualBox 4.0 2010-12-28 00:18:46 +01:00
vbox_XPCOMCGlue.c vbox: Fix typo in error message 2011-06-04 22:41:49 +02:00
vbox_XPCOMCGlue.h vbox: Add support for VirtualBox 4.0 2010-12-28 00:18:46 +01:00

README 

    Explanation about the how multi-version support
    for VirtualBox libvirt driver is implemented.

Since VirtualBox adds multiple new features for each release, it is but
natural that the C API which VirtualBox exposes is volatile across
versions and thus needs a good mechanism to handle multiple versions
during runtime. The solution was something like this:

Firstly the file structure is as below:

vbox_CAPI_v2_2.h
vbox_XPCOMCGlue.h
vbox_XPCOMCGlue.c
These files are C API/glue code files directly taken from the
VirtualBox OSE source and is needed for C API to work as expected.

vbox_driver.h
vbox_driver.c
These files have the main logic for registering the virtualbox driver
with libvirt.

vbox_V2_2.c
The file which has version dependent changes and includes the template
file for given below for all of its functionality.

vbox_tmpl.c
The file where all the real driver implementation code exists.

Now there would be a vbox_V*.c file (for eg: vbox_V2_2.c for V2.2) for
each major virtualbox version which would do some preprocessor magic
and include the template file (vbox_tmpl.c) in it for the functionality
it offers.