1 files changed, 90 insertions, 0 deletions
diff --git a/xlators/features/metadisp/src/metadisp-lookup.c b/xlators/features/metadisp/src/metadisp-lookup.c
new file mode 100644
index 00000000000..27d90c9f746
--- /dev/null
+++ b/xlators/features/metadisp/src/metadisp-lookup.c
@@ -0,0 +1,90 @@
+#include "metadisp.h"
+#include <glusterfs/call-stub.h>
+
+/**
+ * Lookup, like stat, is a two-step process for grabbing the metadata details
+ * as well as the data details.
+ */
+
+int32_t
+metadisp_backend_lookup_cbk(call_frame_t *frame, void *cookie, xlator_t *this,
+                            int32_t op_ret, int32_t op_errno, inode_t *inode,
+                            struct iatt *buf, dict_t *xdata,
+                            struct iatt *postparent)
+{
+    METADISP_TRACE("backend_lookup_cbk");
+    if (op_errno == ENOENT) {
+        op_errno = ENODATA;
+        op_ret = -1;
+    }
+    STACK_UNWIND_STRICT(lookup, frame, op_ret, op_errno, inode, buf, xdata,
+                        postparent);
+    return 0;
+}
+
+int32_t
+metadisp_backend_lookup_resume(call_frame_t *frame, xlator_t *this, loc_t *loc,
+                               dict_t *xdata)
+{
+    METADISP_TRACE("backend_lookup_resume");
+    loc_t backend_loc = {
+        0,
+    };
+    if (build_backend_loc(loc->gfid, loc, &backend_loc)) {
+        goto unwind;
+    }
+
+    STACK_WIND(frame, metadisp_backend_lookup_cbk, DATA_CHILD(this),
+               DATA_CHILD(this)->fops->lookup, &backend_loc, xdata);
+    return 0;
+
+unwind:
+    STACK_UNWIND_STRICT(lookup, frame, -1, EINVAL, NULL, NULL, NULL, NULL);
+    return 0;
+}
+
+int32_t
+metadisp_lookup_cbk(call_frame_t *frame, void *cookie, xlator_t *this,
+                    int32_t op_ret, int32_t op_errno, inode_t *inode,
+                    struct iatt *buf, dict_t *xdata, struct iatt *postparent)
+{
+    METADISP_TRACE("%d %d", op_ret, op_errno);
+    call_stub_t *stub = NULL;
+    stub = cookie;
+
+    if (op_ret != 0) {
+        goto unwind;
+    }
+
+    if (!IA_ISREG(buf->ia_type)) {
+        goto unwind;
+    } else if (!stub) {
+        op_errno = EINVAL;
+        goto unwind;
+    }
+
+    METADISP_TRACE("resuming stub");
+
+    // memcpy(stub->args.loc.gfid, buf->ia_gfid, sizeof(uuid_t));
+    call_resume(stub);
+    return 0;
+unwind:
+    METADISP_TRACE("unwinding %d %d", op_ret, op_errno);
+    STACK_UNWIND_STRICT(lookup, frame, op_ret, op_errno, inode, buf, xdata,
+                        postparent);
+    if (stub) {
+        call_stub_destroy(stub);
+    }
+    return 0;
+}
+
+int32_t
+metadisp_lookup(call_frame_t *frame, xlator_t *this, loc_t *loc, dict_t *xdata)
+{
+    METADISP_TRACE("lookup");
+    call_stub_t *stub = NULL;
+    stub = fop_lookup_stub(frame, metadisp_backend_lookup_resume, loc, xdata);
+    STACK_WIND_COOKIE(frame, metadisp_lookup_cbk, stub, METADATA_CHILD(this),
+                      METADATA_CHILD(this)->fops->lookup, loc, xdata);
+    return 0;
+}