From dcc7ecbf6af5420af2d5dbd0e97fc7a2e0e894a6 Mon Sep 17 00:00:00 2001 From: Rickard Green Date: Sun, 9 Oct 2011 00:03:14 +0200 Subject: Use generic lock-free queue for async threads Queues used for communication between async threads and scheduler threads have been replaced with lock-free queues. Drivers using the driver_async functionality are not automatically locked to the system anymore, and can be unloaded as any dynamically linked in driver. Scheduling of ready async jobs is now also interleaved in between other jobs. Previously all ready async jobs was performed at once. --- erts/emulator/beam/erl_process.h | 21 ++++++++++++++++++--- 1 file changed, 18 insertions(+), 3 deletions(-) (limited to 'erts/emulator/beam/erl_process.h') diff --git a/erts/emulator/beam/erl_process.h b/erts/emulator/beam/erl_process.h index 895f5ae3c0..0c8204b4ce 100644 --- a/erts/emulator/beam/erl_process.h +++ b/erts/emulator/beam/erl_process.h @@ -54,6 +54,7 @@ typedef struct process Process; #include "erl_atom_table.h" #include "external.h" #include "erl_mseg.h" +#include "erl_async.h" #ifdef HIPE #include "hipe_process.h" @@ -256,11 +257,13 @@ typedef enum { #endif #define ERTS_SSI_AUX_WORK_FIX_ALLOC_LOWER_LIM (((erts_aint32_t) 1) << 4) #define ERTS_SSI_AUX_WORK_FIX_ALLOC_DEALLOC (((erts_aint32_t) 1) << 5) +#define ERTS_SSI_AUX_WORK_ASYNC_READY (((erts_aint32_t) 1) << 6) +#define ERTS_SSI_AUX_WORK_ASYNC_READY_CLEAN (((erts_aint32_t) 1) << 7) #ifdef ERTS_SMP -#define ERTS_SSI_AUX_WORK_DD (((erts_aint32_t) 1) << 6) -#define ERTS_SSI_AUX_WORK_DD_THR_PRGR (((erts_aint32_t) 1) << 7) +#define ERTS_SSI_AUX_WORK_DD (((erts_aint32_t) 1) << 8) +#define ERTS_SSI_AUX_WORK_DD_THR_PRGR (((erts_aint32_t) 1) << 9) #endif -#define ERTS_SSI_AUX_WORK_MSEG_CACHE_CHECK (((erts_aint32_t) 1) << 8) +#define ERTS_SSI_AUX_WORK_MSEG_CACHE_CHECK (((erts_aint32_t) 1) << 10) #if !HAVE_ERTS_MSEG # undef ERTS_SSI_AUX_WORK_MSEG_CACHE_CHECK @@ -418,6 +421,15 @@ typedef struct { void (*completed_arg)(void *); } dd; #endif +#ifdef ERTS_USE_ASYNC_READY_Q + struct { +#ifdef ERTS_SMP + int need_thr_prgr; + ErtsThrPrgrVal thr_prgr; +#endif + void *queue; + } async_ready; +#endif } ErtsAuxWorkData; struct ErtsSchedulerData_ { @@ -1101,6 +1113,9 @@ void erts_start_schedulers(void); void erts_alloc_notify_delayed_dealloc(int); void erts_smp_notify_check_children_needed(void); #endif +#if ERTS_USE_ASYNC_READY_Q +void erts_notify_check_async_ready_queue(void *); +#endif void erts_schedule_misc_aux_work(int sched_id, void (*func)(void *), void *arg); -- cgit v1.2.3