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-rw-r--r--src/test/osdc/FakeWriteback.cc94
1 files changed, 94 insertions, 0 deletions
diff --git a/src/test/osdc/FakeWriteback.cc b/src/test/osdc/FakeWriteback.cc
new file mode 100644
index 00000000..56d208b7
--- /dev/null
+++ b/src/test/osdc/FakeWriteback.cc
@@ -0,0 +1,94 @@
+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab
+
+#include <errno.h>
+#include <time.h>
+
+#include <thread>
+#include "common/debug.h"
+#include "common/Cond.h"
+#include "common/Finisher.h"
+#include "common/Mutex.h"
+#include "include/ceph_assert.h"
+#include "common/ceph_time.h"
+
+#include "FakeWriteback.h"
+
+#define dout_subsys ceph_subsys_objectcacher
+#undef dout_prefix
+#define dout_prefix *_dout << "FakeWriteback(" << this << ") "
+
+class C_Delay : public Context {
+ CephContext *m_cct;
+ Context *m_con;
+ ceph::timespan m_delay;
+ Mutex *m_lock;
+ bufferlist *m_bl;
+ uint64_t m_off;
+
+public:
+ C_Delay(CephContext *cct, Context *c, Mutex *lock, uint64_t off,
+ bufferlist *pbl, uint64_t delay_ns=0)
+ : m_cct(cct), m_con(c), m_delay(delay_ns * std::chrono::nanoseconds(1)),
+ m_lock(lock), m_bl(pbl), m_off(off) {}
+ void finish(int r) override {
+ std::this_thread::sleep_for(m_delay);
+ if (m_bl) {
+ buffer::ptr bp(r);
+ bp.zero();
+ m_bl->append(bp);
+ ldout(m_cct, 20) << "finished read " << m_off << "~" << r << dendl;
+ }
+ m_lock->Lock();
+ m_con->complete(r);
+ m_lock->Unlock();
+ }
+};
+
+FakeWriteback::FakeWriteback(CephContext *cct, Mutex *lock, uint64_t delay_ns)
+ : m_cct(cct), m_lock(lock), m_delay_ns(delay_ns)
+{
+ m_finisher = new Finisher(cct);
+ m_finisher->start();
+}
+
+FakeWriteback::~FakeWriteback()
+{
+ m_finisher->stop();
+ delete m_finisher;
+}
+
+void FakeWriteback::read(const object_t& oid, uint64_t object_no,
+ const object_locator_t& oloc,
+ uint64_t off, uint64_t len, snapid_t snapid,
+ bufferlist *pbl, uint64_t trunc_size,
+ __u32 trunc_seq, int op_flags,
+ const ZTracer::Trace &parent_trace,
+ Context *onfinish)
+{
+ C_Delay *wrapper = new C_Delay(m_cct, onfinish, m_lock, off, pbl,
+ m_delay_ns);
+ m_finisher->queue(wrapper, len);
+}
+
+ceph_tid_t FakeWriteback::write(const object_t& oid,
+ const object_locator_t& oloc,
+ uint64_t off, uint64_t len,
+ const SnapContext& snapc,
+ const bufferlist &bl, ceph::real_time mtime,
+ uint64_t trunc_size, __u32 trunc_seq,
+ ceph_tid_t journal_tid,
+ const ZTracer::Trace &parent_trace,
+ Context *oncommit)
+{
+ C_Delay *wrapper = new C_Delay(m_cct, oncommit, m_lock, off, NULL,
+ m_delay_ns);
+ m_finisher->queue(wrapper, 0);
+ return ++m_tid;
+}
+
+bool FakeWriteback::may_copy_on_write(const object_t&, uint64_t, uint64_t,
+ snapid_t)
+{
+ return false;
+}