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… | |
183 | # include EV_H |
183 | # include EV_H |
184 | #else |
184 | #else |
185 | # include "ev.h" |
185 | # include "ev.h" |
186 | #endif |
186 | #endif |
187 | |
187 | |
188 | EV_CPP(extern "C" {) |
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189 | |
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190 | #ifndef _WIN32 |
188 | #ifndef _WIN32 |
191 | # include <sys/time.h> |
189 | # include <sys/time.h> |
192 | # include <sys/wait.h> |
190 | # include <sys/wait.h> |
193 | # include <unistd.h> |
191 | # include <unistd.h> |
194 | #else |
192 | #else |
… | |
… | |
469 | /* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */ |
467 | /* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */ |
470 | /* ECB.H BEGIN */ |
468 | /* ECB.H BEGIN */ |
471 | /* |
469 | /* |
472 | * libecb - http://software.schmorp.de/pkg/libecb |
470 | * libecb - http://software.schmorp.de/pkg/libecb |
473 | * |
471 | * |
474 | * Copyright (©) 2009-2011 Marc Alexander Lehmann <libecb@schmorp.de> |
472 | * Copyright (©) 2009-2012 Marc Alexander Lehmann <libecb@schmorp.de> |
475 | * Copyright (©) 2011 Emanuele Giaquinta |
473 | * Copyright (©) 2011 Emanuele Giaquinta |
476 | * All rights reserved. |
474 | * All rights reserved. |
477 | * |
475 | * |
478 | * Redistribution and use in source and binary forms, with or without modifica- |
476 | * Redistribution and use in source and binary forms, with or without modifica- |
479 | * tion, are permitted provided that the following conditions are met: |
477 | * tion, are permitted provided that the following conditions are met: |
… | |
… | |
541 | #if ECB_NO_THREADS || ECB_NO_SMP |
539 | #if ECB_NO_THREADS || ECB_NO_SMP |
542 | #define ECB_MEMORY_FENCE do { } while (0) |
540 | #define ECB_MEMORY_FENCE do { } while (0) |
543 | #endif |
541 | #endif |
544 | |
542 | |
545 | #ifndef ECB_MEMORY_FENCE |
543 | #ifndef ECB_MEMORY_FENCE |
546 | #if ECB_GCC_VERSION(2,5) |
544 | #if ECB_GCC_VERSION(2,5) || defined(__INTEL_COMPILER) || defined(__clang__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
547 | #if __i386__ |
545 | #if __i386 || __i386__ |
548 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") |
546 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") |
549 | #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE /* non-lock xchg might be enough */ |
547 | #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE /* non-lock xchg might be enough */ |
550 | #define ECB_MEMORY_FENCE_RELEASE do { } while (0) /* unlikely to change in future cpus */ |
548 | #define ECB_MEMORY_FENCE_RELEASE do { } while (0) /* unlikely to change in future cpus */ |
551 | #elif __amd64 |
549 | #elif __amd64 || __amd64__ || __x86_64 || __x86_64__ |
552 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") |
550 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") |
553 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("lfence" : : : "memory") |
551 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("lfence" : : : "memory") |
554 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("sfence") /* play safe - not needed in any current cpu */ |
552 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("sfence") /* play safe - not needed in any current cpu */ |
555 | #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ |
553 | #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ |
556 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") |
554 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") |
… | |
… | |
558 | || defined(__ARM_ARCH_6K__) || defined(__ARM_ARCH_6ZK__) |
556 | || defined(__ARM_ARCH_6K__) || defined(__ARM_ARCH_6ZK__) |
559 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") |
557 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") |
560 | #elif defined(__ARM_ARCH_7__ ) || defined(__ARM_ARCH_7A__ ) \ |
558 | #elif defined(__ARM_ARCH_7__ ) || defined(__ARM_ARCH_7A__ ) \ |
561 | || defined(__ARM_ARCH_7M__) || defined(__ARM_ARCH_7R__ ) |
559 | || defined(__ARM_ARCH_7M__) || defined(__ARM_ARCH_7R__ ) |
562 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") |
560 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") |
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|
561 | #elif __sparc || __sparc__ |
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562 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad | " : : : "memory") |
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563 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") |
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|
564 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") |
563 | #endif |
565 | #endif |
564 | #endif |
566 | #endif |
565 | #endif |
567 | #endif |
566 | |
568 | |
567 | #ifndef ECB_MEMORY_FENCE |
569 | #ifndef ECB_MEMORY_FENCE |
568 | #if ECB_GCC_VERSION(4,4) || defined(__INTEL_COMPILER) |
570 | #if ECB_GCC_VERSION(4,4) || defined(__INTEL_COMPILER) || defined(__clang__) |
569 | #define ECB_MEMORY_FENCE __sync_synchronize () |
571 | #define ECB_MEMORY_FENCE __sync_synchronize () |
570 | /*#define ECB_MEMORY_FENCE_ACQUIRE ({ char dummy = 0; __sync_lock_test_and_set (&dummy, 1); }) */ |
572 | /*#define ECB_MEMORY_FENCE_ACQUIRE ({ char dummy = 0; __sync_lock_test_and_set (&dummy, 1); }) */ |
571 | /*#define ECB_MEMORY_FENCE_RELEASE ({ char dummy = 1; __sync_lock_release (&dummy ); }) */ |
573 | /*#define ECB_MEMORY_FENCE_RELEASE ({ char dummy = 1; __sync_lock_release (&dummy ); }) */ |
572 | #elif _MSC_VER >= 1400 /* VC++ 2005 */ |
574 | #elif _MSC_VER >= 1400 /* VC++ 2005 */ |
573 | #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) |
575 | #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) |
… | |
… | |
575 | #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ |
577 | #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ |
576 | #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () |
578 | #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () |
577 | #elif defined(_WIN32) |
579 | #elif defined(_WIN32) |
578 | #include <WinNT.h> |
580 | #include <WinNT.h> |
579 | #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ |
581 | #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ |
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|
582 | #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
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|
583 | #include <mbarrier.h> |
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|
584 | #define ECB_MEMORY_FENCE __machine_rw_barrier () |
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|
585 | #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier () |
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|
586 | #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier () |
580 | #endif |
587 | #endif |
581 | #endif |
588 | #endif |
582 | |
589 | |
583 | #ifndef ECB_MEMORY_FENCE |
590 | #ifndef ECB_MEMORY_FENCE |
584 | #if !ECB_AVOID_PTHREADS |
591 | #if !ECB_AVOID_PTHREADS |
… | |
… | |
759 | |
766 | |
760 | return r + ecb_ld32 (x); |
767 | return r + ecb_ld32 (x); |
761 | } |
768 | } |
762 | #endif |
769 | #endif |
763 | |
770 | |
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771 | ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const; |
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|
772 | ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) |
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773 | { |
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774 | return ( (x * 0x0802U & 0x22110U) |
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|
775 | | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; |
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|
776 | } |
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777 | |
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778 | ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const; |
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779 | ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) |
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|
780 | { |
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|
781 | x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1); |
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|
782 | x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2); |
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|
783 | x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4); |
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|
784 | x = ( x >> 8 ) | ( x << 8); |
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785 | |
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|
786 | return x; |
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|
787 | } |
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|
788 | |
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|
789 | ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const; |
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|
790 | ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) |
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|
791 | { |
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|
792 | x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1); |
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|
793 | x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2); |
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|
794 | x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4); |
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|
795 | x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8); |
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|
796 | x = ( x >> 16 ) | ( x << 16); |
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797 | |
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798 | return x; |
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|
799 | } |
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800 | |
764 | /* popcount64 is only available on 64 bit cpus as gcc builtin */ |
801 | /* popcount64 is only available on 64 bit cpus as gcc builtin */ |
765 | /* so for this version we are lazy */ |
802 | /* so for this version we are lazy */ |
766 | ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const; |
803 | ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const; |
767 | ecb_function_ int |
804 | ecb_function_ int |
768 | ecb_popcount64 (uint64_t x) |
805 | ecb_popcount64 (uint64_t x) |
… | |
… | |
843 | #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) |
880 | #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) |
844 | #else |
881 | #else |
845 | #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) |
882 | #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) |
846 | #endif |
883 | #endif |
847 | |
884 | |
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|
885 | #if __cplusplus |
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|
886 | template<typename T> |
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|
887 | static inline T ecb_div_rd (T val, T div) |
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888 | { |
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889 | return val < 0 ? - ((-val + div - 1) / div) : (val ) / div; |
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|
890 | } |
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|
891 | template<typename T> |
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|
892 | static inline T ecb_div_ru (T val, T div) |
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|
893 | { |
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|
894 | return val < 0 ? - ((-val ) / div) : (val + div - 1) / div; |
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|
895 | } |
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|
896 | #else |
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|
897 | #define ecb_div_rd(val,div) ((val) < 0 ? - ((-(val) + (div) - 1) / (div)) : ((val) ) / (div)) |
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|
898 | #define ecb_div_ru(val,div) ((val) < 0 ? - ((-(val) ) / (div)) : ((val) + (div) - 1) / (div)) |
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|
899 | #endif |
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|
900 | |
848 | #if ecb_cplusplus_does_not_suck |
901 | #if ecb_cplusplus_does_not_suck |
849 | /* does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm) */ |
902 | /* does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm) */ |
850 | template<typename T, int N> |
903 | template<typename T, int N> |
851 | static inline int ecb_array_length (const T (&arr)[N]) |
904 | static inline int ecb_array_length (const T (&arr)[N]) |
852 | { |
905 | { |
… | |
… | |
862 | |
915 | |
863 | #if ECB_MEMORY_FENCE_NEEDS_PTHREADS |
916 | #if ECB_MEMORY_FENCE_NEEDS_PTHREADS |
864 | /* if your architecture doesn't need memory fences, e.g. because it is |
917 | /* if your architecture doesn't need memory fences, e.g. because it is |
865 | * single-cpu/core, or if you use libev in a project that doesn't use libev |
918 | * single-cpu/core, or if you use libev in a project that doesn't use libev |
866 | * from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling |
919 | * from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling |
867 | * libev, in which casess the memory fences become nops. |
920 | * libev, in which cases the memory fences become nops. |
868 | * alternatively, you can remove this #error and link against libpthread, |
921 | * alternatively, you can remove this #error and link against libpthread, |
869 | * which will then provide the memory fences. |
922 | * which will then provide the memory fences. |
870 | */ |
923 | */ |
871 | # error "memory fences not defined for your architecture, please report" |
924 | # error "memory fences not defined for your architecture, please report" |
872 | #endif |
925 | #endif |
… | |
… | |
1179 | #undef VAR |
1232 | #undef VAR |
1180 | }; |
1233 | }; |
1181 | #include "ev_wrap.h" |
1234 | #include "ev_wrap.h" |
1182 | |
1235 | |
1183 | static struct ev_loop default_loop_struct; |
1236 | static struct ev_loop default_loop_struct; |
1184 | struct ev_loop *ev_default_loop_ptr; |
1237 | EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */ |
1185 | |
1238 | |
1186 | #else |
1239 | #else |
1187 | |
1240 | |
1188 | ev_tstamp ev_rt_now; |
1241 | EV_API_DECL ev_tstamp ev_rt_now = 0; /* needs to be initialised to make it a definition despite extern */ |
1189 | #define VAR(name,decl) static decl; |
1242 | #define VAR(name,decl) static decl; |
1190 | #include "ev_vars.h" |
1243 | #include "ev_vars.h" |
1191 | #undef VAR |
1244 | #undef VAR |
1192 | |
1245 | |
1193 | static int ev_default_loop_ptr; |
1246 | static int ev_default_loop_ptr; |
… | |
… | |
1287 | |
1340 | |
1288 | do |
1341 | do |
1289 | ncur <<= 1; |
1342 | ncur <<= 1; |
1290 | while (cnt > ncur); |
1343 | while (cnt > ncur); |
1291 | |
1344 | |
1292 | /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ |
1345 | /* if size is large, round to MALLOC_ROUND - 4 * longs to accommodate malloc overhead */ |
1293 | if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) |
1346 | if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) |
1294 | { |
1347 | { |
1295 | ncur *= elem; |
1348 | ncur *= elem; |
1296 | ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); |
1349 | ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); |
1297 | ncur = ncur - sizeof (void *) * 4; |
1350 | ncur = ncur - sizeof (void *) * 4; |
… | |
… | |
2977 | #endif |
3030 | #endif |
2978 | assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */ |
3031 | assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */ |
2979 | backend_poll (EV_A_ waittime); |
3032 | backend_poll (EV_A_ waittime); |
2980 | assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ |
3033 | assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ |
2981 | |
3034 | |
2982 | pipe_write_wanted = 0; /* just an optimsiation, no fence needed */ |
3035 | pipe_write_wanted = 0; /* just an optimisation, no fence needed */ |
2983 | |
3036 | |
2984 | if (pipe_write_skipped) |
3037 | if (pipe_write_skipped) |
2985 | { |
3038 | { |
2986 | assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); |
3039 | assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); |
2987 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
3040 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
… | |
… | |
3245 | |
3298 | |
3246 | void noinline |
3299 | void noinline |
3247 | ev_timer_again (EV_P_ ev_timer *w) |
3300 | ev_timer_again (EV_P_ ev_timer *w) |
3248 | { |
3301 | { |
3249 | EV_FREQUENT_CHECK; |
3302 | EV_FREQUENT_CHECK; |
|
|
3303 | |
|
|
3304 | clear_pending (EV_A_ w); |
3250 | |
3305 | |
3251 | if (ev_is_active (w)) |
3306 | if (ev_is_active (w)) |
3252 | { |
3307 | { |
3253 | if (w->repeat) |
3308 | if (w->repeat) |
3254 | { |
3309 | { |
… | |
… | |
4400 | |
4455 | |
4401 | #if EV_MULTIPLICITY |
4456 | #if EV_MULTIPLICITY |
4402 | #include "ev_wrap.h" |
4457 | #include "ev_wrap.h" |
4403 | #endif |
4458 | #endif |
4404 | |
4459 | |
4405 | EV_CPP(}) |
|
|
4406 | |
|
|