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/*
* Copyright (c) 2015, Charlie Curtsinger and Emery Berger,
* University of Massachusetts Amherst
* This file is part of the Coz project. See LICENSE.md file at the top-level
* directory of this distribution and at http://github.com/plasma-umass/coz.
*/
#if !defined(CAUSAL_RUNTIME_THREAD_STATE_H)
#define CAUSAL_RUNTIME_THREAD_STATE_H
#include <atomic>
#include "ccutil/timer.h"
class thread_state {
public:
bool in_use = false; //< Set by the main thread to prevent signal handler from racing
size_t local_delay = 0; //< The count of delays (or selected line visits) in the thread
perf_event sampler; //< The sampler object for this thread
timer process_timer; //< The timer that triggers sample processing for this thread
size_t pre_block_time; //< The time saved before (possibly) blocking
inline void set_in_use(bool value) {
in_use = value;
std::atomic_signal_fence(std::memory_order_seq_cst);
}
bool check_in_use() {
return in_use;
}
};
#endif
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