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#ifndef MBGL_UTIL_THREADPOOL
#define MBGL_UTIL_THREADPOOL
#include <pthread.h>
#include <forward_list>
#include <queue>
namespace mbgl {
namespace util {
class Threadpool {
private:
class Worker {
public:
Worker(Threadpool& pool);
~Worker();
static void *loop(void *ptr);
private:
Threadpool& pool;
pthread_t thread;
};
public:
Threadpool(int max_workers = 4);
typedef void (*Callback)(void *);
void add(Callback callback, void *data);
private:
typedef std::pair<Callback, void *> Task;
const int max_workers;
pthread_mutex_t mutex = PTHREAD_MUTEX_INITIALIZER;
pthread_cond_t condition = PTHREAD_COND_INITIALIZER;
std::forward_list<Worker> workers;
int worker_count = 0;
std::queue<Task> tasks;
};
extern std::unique_ptr<Threadpool> threadpool;
}
}
#endif
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