Hi, This is v5 of patch series to add fsfreeze for Windows qemu-guest-agent.
changes from v4: -[03/11] Suppress warning about spacing arond 'catch' keyword in C++ -[06/11] Rename qga-prv-obj-y to qga-provider-obj-y -[06/11] Rework reference counting for CQGAVssProviderFactory -[07/11 (newly added)] Make error_set_win32() more generic -[08/11] Introduce struct QGAVSSContext to manage vss context -[09/11] Add guest_fsfreeze_cleanup to thaw the system on exit -[06-10] Print error messages to stderr instead of stdout or dialog -[06-10] Improve error handling and fix leaks -[06-10] Remove HAS_VSS_SDK macro (also reduce #ifdef's) -[06-10] Stop linking qemu-ga.exe and qga-provider.dll -[06-10] Fix coding style v4: http://lists.nongnu.org/archive/html/qemu-devel/2013-06/msg00959.html * Description In Windows, VSS (Volume Shadow Copy Service) provides a facility to quiesce filesystems and applications before disk snapshots are taken. This patch series implements "fsfreeze" command of qemu-ga using VSS. * How to build & run qemu-ga with VSS support - Download Microsoft VSS SDK from: http://www.microsoft.com/en-us/download/details.aspx?id=23490 - Setup the SDK scripts/extract-vsssdk-headers setup.exe (on POSIX-systems) - Specify installed SDK directory to configure option as: ./configure -with-vss-sdk="path/to/VSS SDK" --cross-prefix=i686-w64-mingw32- - make qemu-ga.exe qga/vss-win32-provider/qga-provider.{dll,tlb} (From this version, .dll/.tlb must be explicitly specified.) - Install qemu-ga.exe, qga/vss-win32-provider/qga-provider.{dll,tlb}, and the other required mingw libraries into the same directory in guests - Run `qemu-ga.exe -s install' and `net start qemu-ga' in the guests Any feedback are appreciated. --- Tomoki Sekiyama (11): configure: Support configuring C++ compiler Add c++ keywords to QAPI helper script checkpatch.pl: Check .cpp files Add a script to extract VSS SDK headers on POSIX system qemu-ga: Add configure options to specify path to Windows/VSS SDK qemu-ga: Add Windows VSS provider to quiesce applications on fsfreeze error: Add error_set_win32 and error_setg_win32 qemu-ga: Add Windows VSS requester to quiesce applications and filesystems qemu-ga: Call Windows VSS requester in fsfreeze command handler qemu-ga: Install Windows VSS provider on `qemu-ga -s install' QMP/qemu-ga-client: Make timeout longer for guest-fsfreeze-freeze command .gitignore | 1 Makefile | 3 Makefile.objs | 2 QMP/qemu-ga-client | 4 configure | 87 +++++ hmp.c | 2 hw/pci/pci.c | 2 include/qapi/error.h | 14 + qga/Makefile.objs | 6 qga/commands-win32.c | 84 ++++- qga/main.c | 23 + qga/vss-win32-provider/Makefile.objs | 23 + qga/vss-win32-provider/install.cpp | 489 +++++++++++++++++++++++++++ qga/vss-win32-provider/provider.cpp | 513 ++++++++++++++++++++++++++++ qga/vss-win32-provider/qga-provider.def | 9 qga/vss-win32-provider/qga-provider.idl | 20 + qga/vss-win32-provider/qga-provider.tlb | Bin qga/vss-win32-requester.cpp | 572 +++++++++++++++++++++++++++++++ qga/vss-win32-requester.h | 52 +++ qga/vss-win32.h | 88 +++++ rules.mak | 9 scripts/checkpatch.pl | 37 ++ scripts/extract-vsssdk-headers | 35 ++ scripts/qapi.py | 12 + util/error.c | 35 ++ 25 files changed, 2097 insertions(+), 25 deletions(-) create mode 100644 qga/vss-win32-provider/Makefile.objs create mode 100644 qga/vss-win32-provider/install.cpp create mode 100644 qga/vss-win32-provider/provider.cpp create mode 100644 qga/vss-win32-provider/qga-provider.def create mode 100644 qga/vss-win32-provider/qga-provider.idl create mode 100644 qga/vss-win32-provider/qga-provider.tlb create mode 100644 qga/vss-win32-requester.cpp create mode 100644 qga/vss-win32-requester.h create mode 100644 qga/vss-win32.h create mode 100755 scripts/extract-vsssdk-headers