WriteOp.RmOmapKeys now uses rados_write_op_omap_rm_keys2().
The entirety of removeOmapKeysStep struct was removed as it's not necessary for
it to own the various C-allocated values passed to
rados_write_op_omap_rm_keys2() as arguments. rados_write_op_omap_rm_keys2()
makes copies of all the string-based args [1], so it's sufficient for them to
be short lived.
[1] 2bd3dd512a/src/librados/librados_c.cc (L3888-L3902)
WriteOp.SetOmap now uses rados_write_op_omap_set2().
The entirety of setOmapStep struct was removed as it's not necessary for it to
own the various C-allocated values passed to rados_write_op_omap_set2()
as arguments. rados_write_op_omap_set2() makes copies of all the string-based
args [1], so it's sufficient for them to be short lived.
[1] 2bd3dd512a/src/librados/librados_c.cc (L3852-L3871)
This change uses slices on top of C allocated array memory in order
to have a simple (no pointer arithmetic) and safe (boundary-checked)
access to its elements.
Signed-off-by: Sven Anderson <sven@redhat.com>
Add Write implementing rados_write_op_write.
Add WriteFull implementing rados_write_op_write_full.
Add WriteSame implementing rados_write_op_writesame.
These are some of the basic functions needed to write data to
a rados object using a WriteOp.
Signed-off-by: John Mulligan <jmulligan@redhat.com>
Reimplement SetOmap in terms of a new SetOmap function on the WriteOp.
Now the actions of the write op can start to be atomically chained the
way WriteOps are supposed to.
Signed-off-by: John Mulligan <jmulligan@redhat.com>
The WriteOp type will manage librados write operations and the
corresponding functions that ceph names like rados_write_op_*.
Signed-off-by: John Mulligan <jmulligan@redhat.com>
Sven Anderson
Robert Vasek
John Mulligan