Re: [libvirt] [PATCH 1/2] qemu: Split out various utility functions to qemu_util.c

--- po/POTFILES.in | 1 + src/Makefile.am | 1 + src/qemu/qemu_driver.c | 492 ++----------------------------------------------- src/qemu/qemu_util.c | 486 ++++++++++++++++++++++++++++++++++++++++++++++++ src/qemu/qemu_util.h | 111 +++++++++++ 5 files changed, 611 insertions(+), 480 deletions(-) create mode 100644 src/qemu/qemu_util.c create mode 100644 src/qemu/qemu_util.h

+# include "qemu_domain.h" + +/* It would be nice to replace 'Qemud' with 'Qemu' but + * this magic string is ABI, so it can't be changed + */ +# define QEMU_SAVE_MAGIC "LibvirtQemudSave" +# define QEMU_SAVE_PARTIAL "LibvirtQemudPart" +# define QEMU_SAVE_VERSION 2 + +verify(sizeof(QEMU_SAVE_MAGIC) == sizeof(QEMU_SAVE_PARTIAL)); + +typedef struct _virQEMUSaveHeader virQEMUSaveHeader; +typedef virQEMUSaveHeader *virQEMUSaveHeaderPtr; +struct _virQEMUSaveHeader { + char magic[sizeof(QEMU_SAVE_MAGIC)-1]; + uint32_t version; + uint32_t xml_len; + uint32_t was_running; + uint32_t compressed; + uint32_t unused[15]; +}; + + +typedef enum { + VIR_DISK_CHAIN_NO_ACCESS, + VIR_DISK_CHAIN_READ_ONLY, + VIR_DISK_CHAIN_READ_WRITE, +} qemuDomainDiskChainMode; + +typedef enum { + QEMU_SAVE_FORMAT_RAW = 0, + QEMU_SAVE_FORMAT_GZIP = 1, + QEMU_SAVE_FORMAT_BZIP2 = 2, + /* + * Deprecated by xz and never used as part of a release + * QEMU_SAVE_FORMAT_LZMA + */ + QEMU_SAVE_FORMAT_XZ = 3, + QEMU_SAVE_FORMAT_LZOP = 4, + /* Note: add new members only at the end. + These values are used in the on-disk format. + Do not change or re-use numbers. */ + + QEMU_SAVE_FORMAT_LAST +} virQEMUSaveFormat; + +VIR_ENUM_DECL(qemuSaveCompression) + + +virDomainObjPtr qemuDomObjFromDomainDriver(virDomainPtr domain, + virQEMUDriverPtr *drv); + +virDomainObjPtr qemuDomObjFromDomain(virDomainPtr domain); + +virDomainObjPtr qemuDomObjFromSnapshot(virDomainSnapshotPtr snapshot); + +virDomainSnapshotObjPtr qemuSnapObjFromSnapshot(virDomainObjPtr vm, + virDomainSnapshotPtr snapshot); + +virDomainSnapshotObjPtr qemuSnapObjFromName(virDomainObjPtr vm, + const char *name);

+int qemuOpenFile(virQEMUDriverPtr driver, + const char *path, + int oflags, + bool *needUnlink, + bool *bypassSecurityDriver);

+int qemuDomainPrepareDiskChainElement(virQEMUDriverPtr driver, + virDomainObjPtr vm, + virCgroupPtr cgroup, + virDomainDiskDefPtr disk, + const char *file, + qemuDomainDiskChainMode mode);

+int qemuDomainSaveMemory(virQEMUDriverPtr driver, + virDomainObjPtr vm, + const char *path, + const char *domXML, + int compressed, + bool was_running, + unsigned int flags, + enum qemuDomainAsyncJob asyncJob);

+const char *qemuCompressProgramName(int compress);