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// -*- C++ -*-
#ifndef HL_FRED_H
#define HL_FRED_H
/// A thread-wrapper of childlike simplicity :).
#if defined(_WIN32)
#include <windows.h>
#include <process.h>
#elif defined(__SVR4)
#include <thread.h>
#include <pthread.h>
#include <unistd.h>
#else
#include <pthread.h>
#include <unistd.h>
#endif
typedef void * (*ThreadFunctionType) (void *);
namespace HL {
class Fred {
public:
Fred() {
#if !defined(_WIN32)
pthread_attr_init (&attr);
pthread_attr_setscope (&attr, PTHREAD_SCOPE_SYSTEM);
#endif
}
~Fred() {
#if !defined(_WIN32)
pthread_attr_destroy (&attr);
#endif
}
void create (ThreadFunctionType function, void * arg) {
#if defined(_WIN32)
t = CreateThread (0, 0, (LPTHREAD_START_ROUTINE) *function, (LPVOID) arg, 0, 0);
#else
pthread_create (&t, &attr, function, arg);
#endif
}
void join (void) {
#if defined(_WIN32)
WaitForSingleObject (t, INFINITE);
#else
pthread_join (t, NULL);
#endif
}
static void yield (void) {
#if defined(_WIN32)
Sleep (0);
#elif defined(__SVR4)
thr_yield();
#else
sched_yield();
#endif
}
static void setConcurrency (int n) {
#if defined(_WIN32)
#elif defined(__SVR4)
thr_setconcurrency (n);
#else
pthread_setconcurrency (n);
#endif
}
private:
#if defined(_WIN32)
typedef HANDLE FredType;
#else
typedef pthread_t FredType;
pthread_attr_t attr;
#endif
FredType t;
};
}
#endif
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