remove ceph code

[stor4nfv.git] / src / ceph / src / common / Cond.h

diff --git a/src/ceph/src/common/Cond.h b/src/ceph/src/common/Cond.h
deleted file mode 100644 (file)
index aa53b60..0000000
--- a/src/ceph/src/common/Cond.h
+++ /dev/null
@@ -1,199 +0,0 @@
-// -*- 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>
- *
- * 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 CEPH_COND_H
-#define CEPH_COND_H
-
-#include "include/Context.h"
-
-class Cond {
-  // my bits
-  pthread_cond_t _c;
-
-  Mutex *waiter_mutex;
-
-  // don't allow copying.
-  void operator=(Cond &C);
-  Cond(const Cond &C);
-
- public:
-  Cond() : waiter_mutex(NULL) {
-    int r = pthread_cond_init(&_c,NULL);
-    assert(r == 0);
-  }
-  virtual ~Cond() { 
-    pthread_cond_destroy(&_c); 
-  }
-
-  int Wait(Mutex &mutex)  { 
-    // make sure this cond is used with one mutex only
-    assert(waiter_mutex == NULL || waiter_mutex == &mutex);
-    waiter_mutex = &mutex;
-
-    assert(mutex.is_locked());
-
-    mutex._pre_unlock();
-    int r = pthread_cond_wait(&_c, &mutex._m);
-    mutex._post_lock();
-    return r;
-  }
-
-  int WaitUntil(Mutex &mutex, utime_t when) {
-    // make sure this cond is used with one mutex only
-    assert(waiter_mutex == NULL || waiter_mutex == &mutex);
-    waiter_mutex = &mutex;
-
-    assert(mutex.is_locked());
-
-    struct timespec ts;
-    when.to_timespec(&ts);
-
-    mutex._pre_unlock();
-    int r = pthread_cond_timedwait(&_c, &mutex._m, &ts);
-    mutex._post_lock();
-
-    return r;
-  }
-
-  int WaitInterval(Mutex &mutex, utime_t interval) {
-    utime_t when = ceph_clock_now();
-    when += interval;
-    return WaitUntil(mutex, when);
-  }
-
-  template<typename Duration>
-  int WaitInterval(Mutex &mutex, Duration interval) {
-    ceph::real_time when(ceph::real_clock::now());
-    when += interval;
-
-    struct timespec ts = ceph::real_clock::to_timespec(when);
-
-    mutex._pre_unlock();
-    int r = pthread_cond_timedwait(&_c, &mutex._m, &ts);
-    mutex._post_lock();
-
-    return r;
-  }
-
-  int SloppySignal() { 
-    int r = pthread_cond_broadcast(&_c);
-    return r;
-  }
-  int Signal() { 
-    // make sure signaler is holding the waiter's lock.
-    assert(waiter_mutex == NULL ||
-          waiter_mutex->is_locked());
-
-    int r = pthread_cond_broadcast(&_c);
-    return r;
-  }
-  int SignalOne() { 
-    // make sure signaler is holding the waiter's lock.
-    assert(waiter_mutex == NULL ||
-          waiter_mutex->is_locked());
-
-    int r = pthread_cond_signal(&_c);
-    return r;
-  }
-  int SignalAll() { 
-    // make sure signaler is holding the waiter's lock.
-    assert(waiter_mutex == NULL ||
-          waiter_mutex->is_locked());
-
-    int r = pthread_cond_broadcast(&_c);
-    return r;
-  }
-};
-
-/**
- * context to signal a cond
- *
- * Generic context to signal a cond and store the return value.  We
- * assume the caller is holding the appropriate lock.
- */
-class C_Cond : public Context {
-  Cond *cond;   ///< Cond to signal
-  bool *done;   ///< true if finish() has been called
-  int *rval;    ///< return value
-public:
-  C_Cond(Cond *c, bool *d, int *r) : cond(c), done(d), rval(r) {
-    *done = false;
-  }
-  void finish(int r) override {
-    *done = true;
-    *rval = r;
-    cond->Signal();
-  }
-};
-
-/**
- * context to signal a cond, protected by a lock
- *
- * Generic context to signal a cond under a specific lock. We take the
- * lock in the finish() callback, so the finish() caller must not
- * already hold it.
- */
-class C_SafeCond : public Context {
-  Mutex *lock;    ///< Mutex to take
-  Cond *cond;     ///< Cond to signal
-  bool *done;     ///< true after finish() has been called
-  int *rval;      ///< return value (optional)
-public:
-  C_SafeCond(Mutex *l, Cond *c, bool *d, int *r=0) : lock(l), cond(c), done(d), rval(r) {
-    *done = false;
-  }
-  void finish(int r) override {
-    lock->Lock();
-    if (rval)
-      *rval = r;
-    *done = true;
-    cond->Signal();
-    lock->Unlock();
-  }
-};
-
-/**
- * Context providing a simple wait() mechanism to wait for completion
- *
- * The context will not be deleted as part of complete and must live
- * until wait() returns.
- */
-class C_SaferCond : public Context {
-  Mutex lock;    ///< Mutex to take
-  Cond cond;     ///< Cond to signal
-  bool done;     ///< true after finish() has been called
-  int rval;      ///< return value
-public:
-  C_SaferCond() : lock("C_SaferCond"), done(false), rval(0) {}
-  void finish(int r) override { complete(r); }
-
-  /// We overload complete in order to not delete the context
-  void complete(int r) override {
-    Mutex::Locker l(lock);
-    done = true;
-    rval = r;
-    cond.Signal();
-  }
-
-  /// Returns rval once the Context is called
-  int wait() {
-    Mutex::Locker l(lock);
-    while (!done)
-      cond.Wait(lock);
-    return rval;
-  }
-};
-
-#endif