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#define MAX_THREAD_GROUPS 128
/* Threadpool parameters */
extern uint threadpool_min_threads; /* Minimum threads in pool */
extern uint threadpool_idle_timeout; /* Shutdown idle worker threads after this timeout */
extern uint threadpool_size; /* Number of parallel executing threads */
extern uint threadpool_stall_limit; /* time interval in 10 ms units for stall checks*/
extern uint threadpool_max_threads; /* Maximum threads in pool */
extern uint threadpool_oversubscribe; /* Maximum active threads in group */
/*
Threadpool statistics
*/
struct TP_STATISTICS
{
/* Current number of worker thread. */
volatile int num_worker_threads;
/* Current number of idle threads. */
volatile int num_waiting_threads;
/* Number of login requests are queued but not yet processed. */
volatile int pending_login_requests;
/* Number of threads that are starting. */
volatile int pending_thread_starts;
/* Number of threads that are being shut down */
volatile int pending_thread_shutdowns;
/* Time (in milliseconds) since pool is blocked (num_waiting_threads is 0) */
ulonglong pool_block_duration;
/* Maximum duration of the pending login, im milliseconds. */
ulonglong pending_login_duration;
/* Time since last thread was created */
ulonglong time_since_last_thread_creation;
/* Number of requests processed since pool monitor run last time. */
volatile int requests_dequeued;
volatile int requests_completed;
};
extern TP_STATISTICS tp_stats;
/* Functions to set threadpool parameters */
extern void tp_set_min_threads(uint val);
extern void tp_set_max_threads(uint val);
extern int tp_set_threadpool_size(uint val);
extern void tp_set_threadpool_stall_limit(uint val);
/* Activate threadpool scheduler */
extern void tp_scheduler(void);
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