X-Git-Url: https://git.saurik.com/apple/libdispatch.git/blobdiff_plain/517da941284910bcce6aed25a1e923708f0ed33f..refs/heads/master:/src/trace.h diff --git a/src/trace.h b/src/trace.h index 9a0f152..c670f60 100644 --- a/src/trace.h +++ b/src/trace.h @@ -27,16 +27,9 @@ #ifndef __DISPATCH_TRACE__ #define __DISPATCH_TRACE__ -#if DISPATCH_USE_DTRACE && !__OBJC2__ - -typedef struct dispatch_trace_timer_params_s { - int64_t deadline, interval, leeway; -} *dispatch_trace_timer_params_t; - -#include "provider.h" +#if DISPATCH_PURE_C #if DISPATCH_USE_DTRACE_INTROSPECTION - #define _dispatch_trace_callout(_c, _f, _dcc) do { \ if (slowpath(DISPATCH_CALLOUT_ENTRY_ENABLED()) || \ slowpath(DISPATCH_CALLOUT_RETURN_ENABLED())) { \ @@ -51,7 +44,12 @@ typedef struct dispatch_trace_timer_params_s { _dcc; \ } \ } while (0) +#elif DISPATCH_INTROSPECTION +#define _dispatch_trace_callout(_c, _f, _dcc) \ + do { (void)(_c); (void)(_f); _dcc; } while (0) +#endif // DISPATCH_USE_DTRACE_INTROSPECTION || DISPATCH_INTROSPECTION +#if DISPATCH_USE_DTRACE_INTROSPECTION || DISPATCH_INTROSPECTION DISPATCH_ALWAYS_INLINE static inline void _dispatch_trace_client_callout(void *ctxt, dispatch_function_t f) @@ -73,45 +71,39 @@ _dispatch_trace_client_callout2(void *ctxt, size_t i, void (*f)(void *, size_t)) _dispatch_introspection_callout_return(ctxt, func); } -#ifdef __BLOCKS__ -DISPATCH_ALWAYS_INLINE -static inline void -_dispatch_trace_client_callout_block(dispatch_block_t b) -{ - dispatch_function_t func = _dispatch_Block_invoke(b); - _dispatch_introspection_callout_entry(b, func); - _dispatch_trace_callout(b, func, _dispatch_client_callout(b, func)); - _dispatch_introspection_callout_return(b, func); -} -#endif - #define _dispatch_client_callout _dispatch_trace_client_callout #define _dispatch_client_callout2 _dispatch_trace_client_callout2 -#define _dispatch_client_callout_block _dispatch_trace_client_callout_block +#endif // DISPATCH_USE_DTRACE_INTROSPECTION || DISPATCH_INTROSPECTION +#if DISPATCH_USE_DTRACE_INTROSPECTION #define _dispatch_trace_continuation(_q, _o, _t) do { \ dispatch_queue_t _dq = (_q); \ const char *_label = _dq && _dq->dq_label ? _dq->dq_label : ""; \ struct dispatch_object_s *_do = (_o); \ + dispatch_continuation_t _dc; \ char *_kind; \ dispatch_function_t _func; \ void *_ctxt; \ - if (DISPATCH_OBJ_IS_VTABLE(_do)) { \ - _ctxt = _do->do_ctxt; \ + if (_dispatch_object_has_vtable(_do)) { \ _kind = (char*)dx_kind(_do); \ if ((dx_type(_do) & _DISPATCH_META_TYPE_MASK) == \ _DISPATCH_SOURCE_TYPE && (_dq) != &_dispatch_mgr_q) { \ - _func = ((dispatch_source_t)_do)->ds_refs->ds_handler_func; \ + dispatch_source_t _ds = (dispatch_source_t)_do; \ + _dc = os_atomic_load(&_ds->ds_refs->ds_handler[ \ + DS_EVENT_HANDLER], relaxed); \ + _func = _dc ? _dc->dc_func : NULL; \ + _ctxt = _dc ? _dc->dc_ctxt : NULL; \ } else { \ _func = (dispatch_function_t)_dispatch_queue_invoke; \ + _ctxt = _do->do_ctxt; \ } \ } else { \ - struct dispatch_continuation_s *_dc = (void*)(_do); \ + _dc = (void*)_do; \ _ctxt = _dc->dc_ctxt; \ - if ((long)_dc->do_vtable & DISPATCH_OBJ_SYNC_SLOW_BIT) { \ + if (_dc->dc_flags & DISPATCH_OBJ_SYNC_WAITER_BIT) { \ _kind = "semaphore"; \ _func = (dispatch_function_t)dispatch_semaphore_signal; \ - } else if (_dc->dc_func == _dispatch_call_block_and_release) { \ + } else if (_dc->dc_flags & DISPATCH_OBJ_BLOCK_BIT) { \ _kind = "block"; \ _func = _dispatch_Block_invoke(_dc->dc_ctxt); \ } else { \ @@ -121,11 +113,18 @@ _dispatch_trace_client_callout_block(dispatch_block_t b) } \ _t(_dq, _label, _do, _kind, _func, _ctxt); \ } while (0) - +#elif DISPATCH_INTROSPECTION +#define _dispatch_trace_continuation(_q, _o, _t) \ + do { (void)(_q); (void)(_o); } while(0) +#define DISPATCH_QUEUE_PUSH_ENABLED() 0 +#define DISPATCH_QUEUE_POP_ENABLED() 0 +#endif // DISPATCH_USE_DTRACE_INTROSPECTION || DISPATCH_INTROSPECTION + +#if DISPATCH_USE_DTRACE_INTROSPECTION || DISPATCH_INTROSPECTION DISPATCH_ALWAYS_INLINE static inline void -_dispatch_trace_queue_push_list(dispatch_queue_t dq, dispatch_object_t _head, - dispatch_object_t _tail, unsigned int n) +_dispatch_trace_root_queue_push_list(dispatch_queue_t dq, + dispatch_object_t _head, dispatch_object_t _tail, int n) { if (slowpath(DISPATCH_QUEUE_PUSH_ENABLED())) { struct dispatch_object_s *dou = _head._do; @@ -134,78 +133,69 @@ _dispatch_trace_queue_push_list(dispatch_queue_t dq, dispatch_object_t _head, } while (dou != _tail._do && (dou = dou->do_next)); } _dispatch_introspection_queue_push_list(dq, _head, _tail); - _dispatch_queue_push_list(dq, _head, _tail, n); + _dispatch_root_queue_push_inline(dq, _head, _tail, n); } DISPATCH_ALWAYS_INLINE static inline void -_dispatch_trace_queue_push(dispatch_queue_t dq, dispatch_object_t _tail) +_dispatch_trace_queue_push_inline(dispatch_queue_t dq, dispatch_object_t _tail, + dispatch_qos_t qos) { if (slowpath(DISPATCH_QUEUE_PUSH_ENABLED())) { struct dispatch_object_s *dou = _tail._do; _dispatch_trace_continuation(dq, dou, DISPATCH_QUEUE_PUSH); } _dispatch_introspection_queue_push(dq, _tail); - _dispatch_queue_push(dq, _tail); + _dispatch_queue_push_inline(dq, _tail, qos); } DISPATCH_ALWAYS_INLINE static inline void -_dispatch_trace_queue_push_wakeup(dispatch_queue_t dq, dispatch_object_t _tail, - bool wakeup) +_dispatch_trace_continuation_push(dispatch_queue_t dq, dispatch_object_t _tail) { if (slowpath(DISPATCH_QUEUE_PUSH_ENABLED())) { struct dispatch_object_s *dou = _tail._do; _dispatch_trace_continuation(dq, dou, DISPATCH_QUEUE_PUSH); } _dispatch_introspection_queue_push(dq, _tail); - _dispatch_queue_push_wakeup(dq, _tail, wakeup); } -DISPATCH_ALWAYS_INLINE -static inline void -_dispatch_queue_push_notrace(dispatch_queue_t dq, dispatch_object_t dou) -{ - _dispatch_queue_push(dq, dou); -} - -#define _dispatch_queue_push_list _dispatch_trace_queue_push_list -#define _dispatch_queue_push _dispatch_trace_queue_push -#define _dispatch_queue_push_wakeup _dispatch_trace_queue_push_wakeup +#define _dispatch_root_queue_push_inline _dispatch_trace_root_queue_push_list +#define _dispatch_queue_push_inline _dispatch_trace_queue_push_inline DISPATCH_ALWAYS_INLINE static inline void -_dispatch_trace_continuation_pop(dispatch_queue_t dq, - dispatch_object_t dou) +_dispatch_trace_continuation_pop(dispatch_queue_t dq, dispatch_object_t dou) { if (slowpath(DISPATCH_QUEUE_POP_ENABLED())) { _dispatch_trace_continuation(dq, dou._do, DISPATCH_QUEUE_POP); } _dispatch_introspection_queue_pop(dq, dou); } +#else +#define _dispatch_trace_continuation_push(dq, dou) \ + do { (void)(dq); (void)(dou); } while(0) +#define _dispatch_trace_continuation_pop(dq, dou) \ + do { (void)(dq); (void)(dou); } while(0) +#endif // DISPATCH_USE_DTRACE_INTROSPECTION || DISPATCH_INTROSPECTION -#endif // DISPATCH_USE_DTRACE_INTROSPECTION - +#if DISPATCH_USE_DTRACE static inline dispatch_function_t -_dispatch_trace_timer_function(dispatch_source_t ds, dispatch_source_refs_t dr) +_dispatch_trace_timer_function(dispatch_timer_source_refs_t dr) { - dispatch_function_t func = dr->ds_handler_func; - if (func == _dispatch_after_timer_callback) { - dispatch_continuation_t dc = ds->do_ctxt; - func = dc->dc_func != _dispatch_call_block_and_release ? dc->dc_func : - dc->dc_ctxt ? _dispatch_Block_invoke(dc->dc_ctxt) : NULL; - } - return func; + dispatch_continuation_t dc; + dc = os_atomic_load(&dr->ds_handler[DS_EVENT_HANDLER], relaxed); + return dc ? dc->dc_func : NULL; } DISPATCH_ALWAYS_INLINE static inline dispatch_trace_timer_params_t -_dispatch_trace_timer_params(uintptr_t ident, +_dispatch_trace_timer_params(dispatch_clock_t clock, struct dispatch_timer_source_s *values, uint64_t deadline, dispatch_trace_timer_params_t params) { - #define _dispatch_trace_time2nano3(t) (DISPATCH_TIMER_KIND(ident) \ - == DISPATCH_TIMER_KIND_MACH ? _dispatch_time_mach2nano(t) : (t)) + #define _dispatch_trace_time2nano3(t) \ + (clock == DISPATCH_CLOCK_MACH ? _dispatch_time_mach2nano(t) : (t)) #define _dispatch_trace_time2nano2(v, t) ({ uint64_t _t = (t); \ (v) >= INT64_MAX ? -1ll : (int64_t)_dispatch_trace_time2nano3(_t);}) #define _dispatch_trace_time2nano(v) ({ uint64_t _t; \ @@ -214,14 +204,13 @@ _dispatch_trace_timer_params(uintptr_t ident, if (deadline) { params->deadline = (int64_t)deadline; } else { - uint64_t now = (DISPATCH_TIMER_KIND(ident) == - DISPATCH_TIMER_KIND_MACH ? _dispatch_absolute_time() : - _dispatch_get_nanoseconds()); + uint64_t now = _dispatch_time_now(clock); params->deadline = _dispatch_trace_time2nano2(values->target, values->target < now ? 0 : values->target - now); } + uint64_t leeway = values->deadline - values->target; params->interval = _dispatch_trace_time2nano(values->interval); - params->leeway = _dispatch_trace_time2nano(values->leeway); + params->leeway = _dispatch_trace_time2nano(leeway); return params; } @@ -234,51 +223,52 @@ _dispatch_trace_timer_configure_enabled(void) DISPATCH_ALWAYS_INLINE static inline void -_dispatch_trace_timer_configure(dispatch_source_t ds, uintptr_t ident, +_dispatch_trace_timer_configure(dispatch_source_t ds, dispatch_clock_t clock, struct dispatch_timer_source_s *values) { + dispatch_timer_source_refs_t dr = ds->ds_timer_refs; struct dispatch_trace_timer_params_s params; - DISPATCH_TIMER_CONFIGURE(ds, _dispatch_trace_timer_function(ds, - ds->ds_refs), _dispatch_trace_timer_params(ident, values, 0, - ¶ms)); + DISPATCH_TIMER_CONFIGURE(ds, _dispatch_trace_timer_function(dr), + _dispatch_trace_timer_params(clock, values, 0, ¶ms)); } DISPATCH_ALWAYS_INLINE static inline void -_dispatch_trace_timer_program(dispatch_source_refs_t dr, uint64_t deadline) +_dispatch_trace_timer_program(dispatch_timer_source_refs_t dr, uint64_t deadline) { if (slowpath(DISPATCH_TIMER_PROGRAM_ENABLED())) { if (deadline && dr) { dispatch_source_t ds = _dispatch_source_from_refs(dr); + dispatch_clock_t clock = DISPATCH_TIMER_CLOCK(dr->du_ident); struct dispatch_trace_timer_params_s params; - DISPATCH_TIMER_PROGRAM(ds, _dispatch_trace_timer_function(ds, dr), - _dispatch_trace_timer_params(ds->ds_ident_hack, - &ds_timer(dr), deadline, ¶ms)); + DISPATCH_TIMER_PROGRAM(ds, _dispatch_trace_timer_function(dr), + _dispatch_trace_timer_params(clock, &dr->dt_timer, + deadline, ¶ms)); } } } DISPATCH_ALWAYS_INLINE static inline void -_dispatch_trace_timer_wake(dispatch_source_refs_t dr) +_dispatch_trace_timer_wake(dispatch_timer_source_refs_t dr) { if (slowpath(DISPATCH_TIMER_WAKE_ENABLED())) { if (dr) { dispatch_source_t ds = _dispatch_source_from_refs(dr); - DISPATCH_TIMER_WAKE(ds, _dispatch_trace_timer_function(ds, dr)); + DISPATCH_TIMER_WAKE(ds, _dispatch_trace_timer_function(dr)); } } } DISPATCH_ALWAYS_INLINE static inline void -_dispatch_trace_timer_fire(dispatch_source_refs_t dr, unsigned long data, - unsigned long missed) +_dispatch_trace_timer_fire(dispatch_timer_source_refs_t dr, uint64_t data, + uint64_t missed) { if (slowpath(DISPATCH_TIMER_FIRE_ENABLED())) { if (!(data - missed) && dr) { dispatch_source_t ds = _dispatch_source_from_refs(dr); - DISPATCH_TIMER_FIRE(ds, _dispatch_trace_timer_function(ds, dr)); + DISPATCH_TIMER_FIRE(ds, _dispatch_trace_timer_function(dr)); } } } @@ -286,8 +276,8 @@ _dispatch_trace_timer_fire(dispatch_source_refs_t dr, unsigned long data, #else #define _dispatch_trace_timer_configure_enabled() false -#define _dispatch_trace_timer_configure(ds, ident, values) \ - do { (void)(ds); (void)(ident); (void)(values); } while(0) +#define _dispatch_trace_timer_configure(ds, clock, values) \ + do { (void)(ds); (void)(clock); (void)(values); } while(0) #define _dispatch_trace_timer_program(dr, deadline) \ do { (void)(dr); (void)(deadline); } while(0) #define _dispatch_trace_timer_wake(dr) \ @@ -295,14 +285,8 @@ _dispatch_trace_timer_fire(dispatch_source_refs_t dr, unsigned long data, #define _dispatch_trace_timer_fire(dr, data, missed) \ do { (void)(dr); (void)(data); (void)(missed); } while(0) -#endif // DISPATCH_USE_DTRACE && !__OBJC2__ - -#if !DISPATCH_USE_DTRACE_INTROSPECTION - -#define _dispatch_queue_push_notrace _dispatch_queue_push -#define _dispatch_trace_continuation_pop(dq, dou) \ - do { (void)(dq); (void)(dou); } while(0) +#endif // DISPATCH_USE_DTRACE -#endif // !DISPATCH_USE_DTRACE_INTROSPECTION +#endif // DISPATCH_PURE_C #endif // __DISPATCH_TRACE__