libglusterfs: Add put fop

Problem: It had been a longtime request to implement put fop
in gluster. put fop in gluster may not have the exact sementics
of HTTP PUT, but can be easily extended to do so. The subsequent
patches, will contain more semantics on the put fop and its
guarentees.

Why compound fop framework is not used for put?
Compound fop framework currently doesn't allow compounding of
entry fop and inode fops, i.e. fops on multiple inodes cannot be
combined in compound fop.

Updates #353
Change-Id: Idb7891b3e056d46d570bb7e31bad1b6a28656ada
Signed-off-by: Poornima G <pgurusid@redhat.com>

1 files changed, 57 insertions, 0 deletions

diff --git a/libglusterfs/src/call-stub.c b/libglusterfs/src/call-stub.c
index 9aa67aab6c2..74a64294528 100644
--- a/libglusterfs/src/call-stub.c
+++ b/libglusterfs/src/call-stub.c
@@ -1968,6 +1968,47 @@ out:
 
 }
 
+call_stub_t *
+fop_put_stub (call_frame_t *frame, fop_put_t fn,
+              loc_t *loc, mode_t mode, mode_t umask, uint32_t flags,
+              struct iovec *vector, int32_t count, off_t offset,
+              struct iobref *iobref, dict_t *xattr, dict_t *xdata)
+{
+        call_stub_t *stub = NULL;
+
+        GF_VALIDATE_OR_GOTO ("call-stub", frame, out);
+        GF_VALIDATE_OR_GOTO ("call-stub", vector, out);
+
+        stub = stub_new (frame, 1, GF_FOP_PUT);
+        GF_VALIDATE_OR_GOTO ("call-stub", stub, out);
+
+        stub->fn.put = fn;
+        args_put_store (&stub->args, loc, mode, umask, flags, vector,
+                        count, offset, iobref, xattr, xdata);
+out:
+        return stub;
+}
+
+call_stub_t *
+fop_put_cbk_stub (call_frame_t *frame, fop_put_cbk_t fn,
+                  int32_t op_ret, int32_t op_errno, inode_t *inode,
+                  struct iatt *buf, struct iatt *preparent,
+                  struct iatt *postparent, dict_t *xdata)
+{
+        call_stub_t *stub = NULL;
+
+        GF_VALIDATE_OR_GOTO ("call-stub", frame, out);
+
+        stub = stub_new (frame, 0, GF_FOP_PUT);
+        GF_VALIDATE_OR_GOTO ("call-stub", stub, out);
+
+        stub->fn_cbk.put = fn;
+        args_put_cbk_store (&stub->args_cbk, op_ret, op_errno, inode,
+                            buf, preparent, postparent, xdata);
+out:
+        return stub;
+}
+
 void
 call_resume_wind (call_stub_t *stub)
 {
@@ -2226,6 +2267,14 @@ call_resume_wind (call_stub_t *stub)
                                         stub->args.xdata);
                 break;
 
+        case GF_FOP_PUT:
+                stub->fn.put (stub->frame, stub->frame->this,
+                              &stub->args.loc, stub->args.mode, stub->args.umask,
+                              stub->args.flags, stub->args.vector,
+                              stub->args.count, stub->args.offset,
+                              stub->args.iobref, stub->args.xattr,
+                              stub->args.xdata);
+
         default:
                 gf_msg_callingfn ("call-stub", GF_LOG_ERROR, EINVAL,
                                   LG_MSG_INVALID_ENTRY, "Invalid value of FOP"
@@ -2453,6 +2502,14 @@ call_resume_unwind (call_stub_t *stub)
                 STUB_UNWIND (stub, setactivelk, stub->args_cbk.xdata);
                 break;
 
+        case GF_FOP_PUT:
+                STUB_UNWIND (stub, put, stub->args_cbk.inode,
+                             &stub->args_cbk.stat,
+                             &stub->args_cbk.preparent,
+                             &stub->args_cbk.postparent,
+                             stub->args_cbk.xdata);
+                break;
+
         default:
                 gf_msg_callingfn ("call-stub", GF_LOG_ERROR, EINVAL,
                                   LG_MSG_INVALID_ENTRY, "Invalid value of FOP"