rust/src/rt/sync/sync.h
Eric Holk 62bc6b5113 Per-thread scheduling. Closes #682.
Tasks are spawned on a random thread. Currently they stay there, but
we should add task migration and load balancing in the future. This
should drammatically improve our task performance benchmarks.
2011-07-28 10:47:28 -07:00

62 lines
1.2 KiB
C++

// -*- c++ -*-
#ifndef SYNC_H
#define SYNC_H
class sync {
public:
static void yield();
static void sleep(size_t timeout_in_ms);
template <class T>
static bool compare_and_swap(T *address,
T oldValue, T newValue) {
return __sync_bool_compare_and_swap(address, oldValue, newValue);
}
template <class T>
static T increment(T *address) {
return __sync_add_and_fetch(address, 1);
}
template <class T>
static T decrement(T *address) {
return __sync_sub_and_fetch(address, 1);
}
template <class T>
static T increment(T &address) {
return __sync_add_and_fetch(&address, 1);
}
template <class T>
static T decrement(T &address) {
return __sync_sub_and_fetch(&address, 1);
}
};
/**
* Thread utility class. Derive and implement your own run() method.
*/
class rust_thread {
private:
volatile bool _is_running;
public:
#if defined(__WIN32__)
HANDLE thread;
#else
pthread_t thread;
#endif
rust_thread();
void start();
virtual void run() {
return;
}
void join();
bool is_running();
virtual ~rust_thread() {} // quiet the compiler
};
#endif /* SYNC_H */