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00011 #ifndef PARALLEL_H__
00012 #define PARALLEL_H__
00013
00014 #include <shogun/lib/config.h>
00015 #include <shogun/lib/common.h>
00016 #include <shogun/io/SGIO.h>
00017
00018 #ifdef HAVE_PTHREAD
00019 #ifdef USE_SPINLOCKS
00020 #define PTHREAD_LOCK_T pthread_spinlock_t
00021 #define PTHREAD_LOCK_INIT(lock) pthread_spin_init(lock, 0)
00022 #define PTHREAD_LOCK_DESTROY(lock) pthread_spin_destroy(lock)
00023 #define PTHREAD_LOCK(lock) pthread_spin_lock(lock)
00024 #define PTHREAD_UNLOCK(lock) pthread_spin_unlock(lock)
00025 #else
00026 #define PTHREAD_LOCK_T pthread_mutex_t
00027 #define PTHREAD_LOCK_INIT(lock) pthread_mutex_init(lock, NULL)
00028 #define PTHREAD_LOCK_DESTROY(lock) pthread_mutex_destroy(lock)
00029 #define PTHREAD_LOCK(lock) pthread_mutex_lock(lock)
00030 #define PTHREAD_UNLOCK(lock) pthread_mutex_unlock(lock)
00031 #endif
00032 #endif
00033
00034 namespace shogun
00035 {
00042 class Parallel
00043 {
00044 public:
00046 Parallel();
00047
00049 Parallel(const Parallel& orig);
00050
00052 virtual ~Parallel();
00053
00057 int32_t get_num_cpus() const;
00058
00062 void set_num_threads(int32_t n);
00063
00067 int32_t get_num_threads() const;
00068
00072 int32_t ref();
00073
00077 int32_t ref_count() const;
00078
00082 int32_t unref();
00083
00084 private:
00086 int32_t refcount;
00087
00089 int32_t num_threads;
00090 };
00091 }
00092 #endif