1 /* Copyright (c) 2006-2020. The SimGrid Team. All rights reserved. */
3 /* This program is free software; you can redistribute it and/or modify it
4 * under the terms of the license (GNU LGPL) which comes with this package. */
6 #include "simgrid/cond.h"
7 #include "simgrid/forward.h"
8 #include "simgrid/s4u/ConditionVariable.hpp"
9 #include "simgrid/simix.h"
10 #include "src/kernel/activity/ConditionVariableImpl.hpp"
11 #include "xbt/log.hpp"
19 ConditionVariablePtr ConditionVariable::create()
21 kernel::activity::ConditionVariableImpl* cond =
22 kernel::actor::simcall([] { return new kernel::activity::ConditionVariableImpl(); });
23 return ConditionVariablePtr(cond->get_iface(), false);
29 void ConditionVariable::wait(MutexPtr lock)
31 simcall_cond_wait(cond_, lock->pimpl_);
34 void ConditionVariable::wait(const std::unique_lock<Mutex>& lock)
36 simcall_cond_wait(cond_, lock.mutex()->pimpl_);
39 std::cv_status s4u::ConditionVariable::wait_for(const std::unique_lock<Mutex>& lock, double timeout)
41 // The simcall uses -1 for "any timeout" but we don't want this:
45 if (simcall_cond_wait_timeout(cond_, lock.mutex()->pimpl_, timeout)) {
46 // If we reached the timeout, we have to take the lock again:
48 return std::cv_status::timeout;
50 return std::cv_status::no_timeout;
54 std::cv_status ConditionVariable::wait_until(const std::unique_lock<Mutex>& lock, double timeout_time)
56 double now = SIMIX_get_clock();
58 if (timeout_time < now)
61 timeout = timeout_time - now;
62 return this->wait_for(lock, timeout);
68 void ConditionVariable::notify_one()
70 simgrid::kernel::actor::simcall([this]() { cond_->signal(); });
73 void ConditionVariable::notify_all()
75 simgrid::kernel::actor::simcall([this]() { cond_->broadcast(); });
78 void intrusive_ptr_add_ref(const ConditionVariable* cond)
80 intrusive_ptr_add_ref(cond->cond_);
83 void intrusive_ptr_release(const ConditionVariable* cond)
85 intrusive_ptr_release(cond->cond_);
89 } // namespace simgrid
91 /* **************************** Public C interface *************************** */
92 sg_cond_t sg_cond_init()
94 simgrid::kernel::activity::ConditionVariableImpl* cond =
95 simgrid::kernel::actor::simcall([] { return new simgrid::kernel::activity::ConditionVariableImpl(); });
97 return new simgrid::s4u::ConditionVariable(cond);
100 void sg_cond_wait(sg_cond_t cond, sg_mutex_t mutex)
105 int sg_cond_wait_for(sg_cond_t cond, sg_mutex_t mutex, double delay)
107 std::unique_lock<simgrid::s4u::Mutex> lock(*mutex);
108 return cond->wait_for(lock, delay) == std::cv_status::timeout ? 1 : 0;
111 void sg_cond_notify_one(sg_cond_t cond)
116 void sg_cond_notify_all(sg_cond_t cond)
121 void sg_cond_destroy(const_sg_cond_t cond)