diff options
Diffstat (limited to 'erts/emulator/beam/erl_time.h')
| -rw-r--r-- | erts/emulator/beam/erl_time.h | 98 |
1 files changed, 69 insertions, 29 deletions
diff --git a/erts/emulator/beam/erl_time.h b/erts/emulator/beam/erl_time.h index a1c4220633..968f21fd51 100644 --- a/erts/emulator/beam/erl_time.h +++ b/erts/emulator/beam/erl_time.h @@ -1,7 +1,7 @@ /* * %CopyrightBegin% * - * Copyright Ericsson AB 2006-2016. All Rights Reserved. + * Copyright Ericsson AB 2006-2018. All Rights Reserved. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. @@ -21,19 +21,54 @@ #ifndef ERL_TIME_H__ #define ERL_TIME_H__ -/* timer wheel size NEED to be a power of 2 */ -#ifdef SMALL_MEMORY -#define ERTS_TIW_SIZE (1 << 13) -#else -#define ERTS_TIW_SIZE (1 << 16) +#include "erl_monitor_link.h" + +#if 0 +# define ERTS_TW_DEBUG +#endif +#if defined(DEBUG) && !defined(ERTS_TW_DEBUG) +# define ERTS_TW_DEBUG #endif -#if defined(DEBUG) || 0 +#if defined(ERTS_TW_DEBUG) #define ERTS_TIME_ASSERT(B) ERTS_ASSERT(B) #else #define ERTS_TIME_ASSERT(B) ((void) 1) #endif +#ifdef ERTS_TW_DEBUG +/* + * Soon wheel will handle about 1 seconds + * Later wheel will handle about 8 minutes + */ +# define ERTS_TW_SOON_WHEEL_BITS 10 +# define ERTS_TW_LATER_WHEEL_BITS 10 +#else +# ifdef SMALL_MEMORY +/* + * Soon wheel will handle about 4 seconds + * Later wheel will handle about 2 hours and 19 minutes + */ +# define ERTS_TW_SOON_WHEEL_BITS 12 +# define ERTS_TW_LATER_WHEEL_BITS 12 +# else +/* + * Soon wheel will handle about 16 seconds + * Later wheel will handle about 37 hours and 16 minutes + */ +# define ERTS_TW_SOON_WHEEL_BITS 14 +# define ERTS_TW_LATER_WHEEL_BITS 14 +# endif +#endif + +/* + * Number of slots in each timer wheel... + * + * These *need* to be a power of 2 + */ +#define ERTS_TW_SOON_WHEEL_SIZE (1 << ERTS_TW_SOON_WHEEL_BITS) +#define ERTS_TW_LATER_WHEEL_SIZE (1 << ERTS_TW_LATER_WHEEL_BITS) + typedef enum { ERTS_NO_TIME_WARP_MODE, ERTS_SINGLE_TIME_WARP_MODE, @@ -46,8 +81,8 @@ typedef ErtsMonotonicTime * ErtsNextTimeoutRef; extern SysTimeval erts_first_emu_time; -void erts_monitor_time_offset(Eterm id, Eterm ref); -int erts_demonitor_time_offset(Eterm ref); +void erts_monitor_time_offset(ErtsMonitor *mon); +void erts_demonitor_time_offset(ErtsMonitor *mon); int erts_init_time_sup(int, ErtsTimeWarpMode); void erts_late_init_time_sup(void); @@ -74,9 +109,6 @@ void erts_p_slpq(void); void erts_get_now_cpu(Uint* megasec, Uint* sec, Uint* microsec); #endif -typedef UWord erts_approx_time_t; -erts_approx_time_t erts_get_approx_time(void); - int erts_has_time_correction(void); int erts_check_time_adj_support(int time_correction, ErtsTimeWarpMode time_warp_mode); @@ -97,13 +129,23 @@ Eterm erts_get_monotonic_end_time(struct process *c_p); Eterm erts_monotonic_time_source(struct process*c_p); Eterm erts_system_time_source(struct process*c_p); +void erts_runtime_elapsed_both(ErtsMonotonicTime *ms_user, + ErtsMonotonicTime *ms_sys, + ErtsMonotonicTime *ms_user_diff, + ErtsMonotonicTime *ms_sys_diff); +void erts_wall_clock_elapsed_both(ErtsMonotonicTime *total, + ErtsMonotonicTime *diff); + #ifdef SYS_CLOCK_RESOLUTION #define ERTS_CLKTCK_RESOLUTION ((ErtsMonotonicTime) (SYS_CLOCK_RESOLUTION*1000)) #else #define ERTS_CLKTCK_RESOLUTION (erts_time_sup__.r.o.clktck_resolution) #endif -#define ERTS_TIMER_WHEEL_MSEC (ERTS_TIW_SIZE/(ERTS_CLKTCK_RESOLUTION/1000)) +#define ERTS_TW_SOON_WHEEL_MSEC (ERTS_TW_SOON_WHEEL_SIZE/(ERTS_CLKTCK_RESOLUTION/1000)) +#define ERTS_TW_LATER_WHEEL_MSEC (ERTS_TW_LATER_WHEEL_SIZE*ERTS_TW_SOON_WHEEL_MSEC/2) + +#define ERTS_TIMER_WHEEL_MSEC ERTS_TW_LATER_WHEEL_MSEC struct erts_time_sup_read_only__ { ErtsMonotonicTime monotonic_time_unit; @@ -412,34 +454,25 @@ erts_time_unit_conversion(Uint64 value, void erts_sched_init_time_sup(ErtsSchedulerData *esdp); -#define ERTS_TWHEEL_SLOT_AT_ONCE -1 -#define ERTS_TWHEEL_SLOT_INACTIVE -2 +#define ERTS_TW_SLOT_INACTIVE (-2) /* ** Timer entry: */ typedef struct erl_timer { - struct erl_timer* next; /* next entry tiw slot or chain */ - struct erl_timer* prev; /* prev entry tiw slot or chain */ - union { - struct { - void (*timeout)(void*); /* called when timeout */ - void (*cancel)(void*); /* called when cancel (may be NULL) */ - void* arg; /* argument to timeout/cancel procs */ - } func; - ErtsThrPrgrLaterOp cleanup; - } u; ErtsMonotonicTime timeout_pos; /* Timeout in absolute clock ticks */ + struct erl_timer* next; /* next entry tiw slot or chain */ + struct erl_timer* prev; /* prev entry tiw slot or chain */ + void (*timeout)(void*); /* called when timeout */ + void* arg; /* argument to timeout/cancel procs */ int slot; } ErtsTWheelTimer; typedef void (*ErlTimeoutProc)(void*); -typedef void (*ErlCancelProc)(void*); void erts_twheel_set_timer(ErtsTimerWheel *tiw, ErtsTWheelTimer *p, ErlTimeoutProc timeout, - ErlCancelProc cancel, void *arg, - ErtsMonotonicTime timeout_pos); + void *arg, ErtsMonotonicTime timeout_pos); void erts_twheel_cancel_timer(ErtsTimerWheel *tiw, ErtsTWheelTimer *p); ErtsTimerWheel *erts_create_timer_wheel(ErtsSchedulerData *esdp); @@ -447,12 +480,13 @@ ErtsMonotonicTime erts_check_next_timeout_time(ErtsSchedulerData *); ERTS_GLB_INLINE void erts_twheel_init_timer(ErtsTWheelTimer *p); ERTS_GLB_INLINE ErtsMonotonicTime erts_next_timeout_time(ErtsNextTimeoutRef); +ERTS_GLB_INLINE ErtsMonotonicTime erts_tweel_read_timeout(ErtsTWheelTimer *twt); #if ERTS_GLB_INLINE_INCL_FUNC_DEF ERTS_GLB_INLINE void erts_twheel_init_timer(ErtsTWheelTimer *p) { - p->slot = ERTS_TWHEEL_SLOT_INACTIVE; + p->slot = ERTS_TW_SLOT_INACTIVE; } ERTS_GLB_INLINE ErtsMonotonicTime erts_next_timeout_time(ErtsNextTimeoutRef nxt_tmo_ref) @@ -460,6 +494,12 @@ ERTS_GLB_INLINE ErtsMonotonicTime erts_next_timeout_time(ErtsNextTimeoutRef nxt_ return *((ErtsMonotonicTime *) nxt_tmo_ref); } +ERTS_GLB_INLINE ErtsMonotonicTime +erts_tweel_read_timeout(ErtsTWheelTimer *twt) +{ + return twt->timeout_pos; +} + #endif /* ERTS_GLB_INLINE_INCL_FUNC_DEF */ void |