def qemuRebase(src, srcFormat, backingFile,
backingFormat, unsafe, stop, rollback):
"""
Rebase the 'src' volume on top of the new 'backingFile'
with new 'backingFormat'
"""
backingFormat = fmt2str(backingFormat)
srcFormat = fmt2str(srcFormat)
cwd = os.path.dirname(src)
log.debug('(qemuRebase): REBASE %s (fmt=%s) on top of %s (%s) START' %
(src, srcFormat, backingFile, backingFormat))
cmd = [constants.EXT_QEMUIMG, "rebase",
"-t", "none", "-f", srcFormat,
"-b", backingFile, "-F", backingFormat]
if unsafe:
cmd += ["-u"]
cmd += [src]
recoveryCallback = None
if rollback:
recoveryCallback = baseAsyncTasksRollback
(rc, out, err) = misc.watchCmd(cmd, stop=stop, cwd=cwd,
recoveryCallback=recoveryCallback,
ioclass=utils.IOCLASS.IDLE,
nice=utils.NICENESS.HIGH)
log.debug('(qemuRebase): REBASE %s DONE' % (src))
return (rc, out, err)
def qemuConvert(src, dst, src_fmt, dst_fmt, stop, size, dstvolType):
"""
Convert the 'src' image (or chain of images) into a new single 'dst'
"""
src_fmt = fmt2str(src_fmt)
dst_fmt = fmt2str(dst_fmt)
log.debug('(qemuConvert): COPY %s (%s) to %s (%s) START' %
(src, src_fmt, dst, dst_fmt))
if (src_fmt == "raw" and dst_fmt == "raw" and
dstvolType == PREALLOCATED_VOL):
(rc, out, err) = misc.ddWatchCopy(
src=src, dst=dst,
stop=stop, size=size,
recoveryCallback=baseAsyncTasksRollback)
else:
cmd = [constants.EXT_QEMUIMG, "convert",
"-t", "none", "-f", src_fmt, src,
"-O", dst_fmt, dst]
(rc, out, err) = misc.watchCmd(cmd, stop=stop,
recoveryCallback=baseAsyncTasksRollback,
ioclass=utils.IOCLASS.IDLE,
nice=utils.NICENESS.HIGH)
log.debug('(qemuConvert): COPY %s to %s DONE' % (src, dst))
return (rc, out, err)
def qemuConvert(src, dst, src_fmt, dst_fmt, stop, size, dstvolType):
"""
Convert the 'src' image (or chain of images) into a new single 'dst'
"""
src_fmt = fmt2str(src_fmt)
dst_fmt = fmt2str(dst_fmt)
log.debug('(qemuConvert): COPY %s (%s) to %s (%s) START' %
(src, src_fmt, dst, dst_fmt))
if (src_fmt == "raw" and dst_fmt == "raw" and
dstvolType == PREALLOCATED_VOL):
(rc, out, err) = misc.ddWatchCopy(
src=src, dst=dst,
stop=stop, size=size,
recoveryCallback=baseAsyncTasksRollback)
else:
cmd = [constants.EXT_QEMUIMG, "convert",
"-t", "none", "-f", src_fmt, src,
"-O", dst_fmt, dst]
(rc, out, err) = misc.watchCmd(cmd, stop=stop,
recoveryCallback=baseAsyncTasksRollback,
ioclass=utils.IOCLASS.IDLE,
nice=utils.NICENESS.HIGH)
log.debug('(qemuConvert): COPY %s to %s DONE' % (src, dst))
return (rc, out, err)
def qemuRebase(src, srcFormat, backingFile,
backingFormat, unsafe, stop, rollback):
"""
Rebase the 'src' volume on top of the new 'backingFile'
with new 'backingFormat'
"""
backingFormat = fmt2str(backingFormat)
srcFormat = fmt2str(srcFormat)
cwd = os.path.dirname(src)
log.debug('(qemuRebase): REBASE %s (fmt=%s) on top of %s (%s) START' %
(src, srcFormat, backingFile, backingFormat))
cmd = [constants.EXT_QEMUIMG, "rebase",
"-t", "none", "-f", srcFormat,
"-b", backingFile, "-F", backingFormat]
if unsafe:
cmd += ["-u"]
cmd += [src]
recoveryCallback = None
if rollback:
recoveryCallback = baseAsyncTasksRollback
(rc, out, err) = misc.watchCmd(cmd, stop=stop, cwd=cwd,
recoveryCallback=recoveryCallback,
ioclass=utils.IOCLASS.IDLE,
nice=utils.NICENESS.HIGH)
log.debug('(qemuRebase): REBASE %s DONE' % (src))
return (rc, out, err)