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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-27 18:24:20 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-27 18:24:20 +0000
commit483eb2f56657e8e7f419ab1a4fab8dce9ade8609 (patch)
treee5d88d25d870d5dedacb6bbdbe2a966086a0a5cf /src/msg/xio/XioInSeq.h
parentInitial commit. (diff)
downloadceph-upstream.tar.xz
ceph-upstream.zip
Adding upstream version 14.2.21.upstream/14.2.21upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/msg/xio/XioInSeq.h')
-rw-r--r--src/msg/xio/XioInSeq.h84
1 files changed, 84 insertions, 0 deletions
diff --git a/src/msg/xio/XioInSeq.h b/src/msg/xio/XioInSeq.h
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+++ b/src/msg/xio/XioInSeq.h
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+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab
+/*
+ * Ceph - scalable distributed file system
+ *
+ * Copyright (C) 2004-2006 Sage Weil <sage@newdream.net>
+ * Portions Copyright (C) 2013 CohortFS, LLC
+ *
+ * This is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License version 2.1, as published by the Free Software
+ * Foundation. See file COPYING.
+ *
+ */
+
+#ifndef XIO_IN_SEQ_H
+#define XIO_IN_SEQ_H
+
+#include <boost/intrusive/list.hpp>
+#include "msg/SimplePolicyMessenger.h"
+extern "C" {
+#include "libxio.h"
+}
+
+/* For inbound messages (Accelio-owned) ONLY, use the message's
+ * user_context as an SLIST */
+class XioInSeq {
+private:
+ int cnt;
+ int sz;
+ struct xio_msg* head;
+ struct xio_msg* tail;
+
+public:
+ XioInSeq() : cnt(0), sz(0), head(NULL), tail(NULL) {}
+ XioInSeq(const XioInSeq& seq) {
+ cnt = seq.cnt;
+ sz = seq.sz;
+ head = seq.head;
+ tail = seq.tail;
+ }
+
+ int count() { return cnt; }
+
+ int size() { return sz; }
+
+ bool p() { return !!head; }
+
+ void set_count(int _cnt) { cnt = _cnt; }
+
+ void append(struct xio_msg* msg) {
+ msg->user_context = NULL;
+ if (!head) {
+ head = tail = msg;
+ } else {
+ tail->user_context = msg;
+ tail = msg;
+ }
+ ++sz;
+ --cnt;
+ }
+
+ struct xio_msg* begin() { return head; }
+
+ struct xio_msg* end() { return NULL; }
+
+ void next(struct xio_msg** msg) {
+ *msg = static_cast<struct xio_msg *>((*msg)->user_context);
+ }
+
+ struct xio_msg* dequeue() {
+ struct xio_msg* msgs = head;
+ clear();
+ return msgs;
+ }
+
+ void clear() {
+ head = tail = NULL;
+ cnt = 0;
+ sz = 0;
+ }
+};
+
+#endif /* XIO_IN_SEQ_H */