1 | /* |
1 | /* |
2 | * libev event processing core, watcher management |
2 | * libev event processing core, watcher management |
3 | * |
3 | * |
4 | * Copyright (c) 2007,2008,2009,2010,2011,2012 Marc Alexander Lehmann <libev@schmorp.de> |
4 | * Copyright (c) 2007,2008,2009,2010,2011,2012,2013 Marc Alexander Lehmann <libev@schmorp.de> |
5 | * All rights reserved. |
5 | * All rights reserved. |
6 | * |
6 | * |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
8 | * tion, are permitted provided that the following conditions are met: |
8 | * tion, are permitted provided that the following conditions are met: |
9 | * |
9 | * |
… | |
… | |
241 | #elif defined SIGARRAYSIZE |
241 | #elif defined SIGARRAYSIZE |
242 | # define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ |
242 | # define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ |
243 | #elif defined _sys_nsig |
243 | #elif defined _sys_nsig |
244 | # define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ |
244 | # define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ |
245 | #else |
245 | #else |
246 | # error "unable to find value for NSIG, please report" |
246 | # define EV_NSIG (8 * sizeof (sigset_t) + 1) |
247 | /* to make it compile regardless, just remove the above line, */ |
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248 | /* but consider reporting it, too! :) */ |
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249 | # define EV_NSIG 65 |
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|
250 | #endif |
247 | #endif |
251 | |
248 | |
252 | #ifndef EV_USE_FLOOR |
249 | #ifndef EV_USE_FLOOR |
253 | # define EV_USE_FLOOR 0 |
250 | # define EV_USE_FLOOR 0 |
254 | #endif |
251 | #endif |
255 | |
252 | |
256 | #ifndef EV_USE_CLOCK_SYSCALL |
253 | #ifndef EV_USE_CLOCK_SYSCALL |
257 | # if __linux && __GLIBC__ >= 2 |
254 | # if __linux && __GLIBC__ == 2 && __GLIBC_MINOR__ < 17 |
258 | # define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS |
255 | # define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS |
259 | # else |
256 | # else |
260 | # define EV_USE_CLOCK_SYSCALL 0 |
257 | # define EV_USE_CLOCK_SYSCALL 0 |
261 | # endif |
258 | # endif |
262 | #endif |
259 | #endif |
… | |
… | |
485 | /* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */ |
482 | /* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */ |
486 | /* ECB.H BEGIN */ |
483 | /* ECB.H BEGIN */ |
487 | /* |
484 | /* |
488 | * libecb - http://software.schmorp.de/pkg/libecb |
485 | * libecb - http://software.schmorp.de/pkg/libecb |
489 | * |
486 | * |
490 | * Copyright (©) 2009-2012 Marc Alexander Lehmann <libecb@schmorp.de> |
487 | * Copyright (©) 2009-2013 Marc Alexander Lehmann <libecb@schmorp.de> |
491 | * Copyright (©) 2011 Emanuele Giaquinta |
488 | * Copyright (©) 2011 Emanuele Giaquinta |
492 | * All rights reserved. |
489 | * All rights reserved. |
493 | * |
490 | * |
494 | * Redistribution and use in source and binary forms, with or without modifica- |
491 | * Redistribution and use in source and binary forms, with or without modifica- |
495 | * tion, are permitted provided that the following conditions are met: |
492 | * tion, are permitted provided that the following conditions are met: |
… | |
… | |
550 | #define ECB_PTRSIZE 4 |
547 | #define ECB_PTRSIZE 4 |
551 | #endif |
548 | #endif |
552 | #endif |
549 | #endif |
553 | |
550 | |
554 | /* work around x32 idiocy by defining proper macros */ |
551 | /* work around x32 idiocy by defining proper macros */ |
555 | #if __x86_64 || _M_AMD64 |
552 | #if __amd64 || __x86_64 || _M_AMD64 || _M_X64 |
556 | #if _ILP32 |
553 | #if _ILP32 |
557 | #define ECB_AMD64_X32 1 |
554 | #define ECB_AMD64_X32 1 |
558 | #else |
555 | #else |
559 | #define ECB_AMD64 1 |
556 | #define ECB_AMD64 1 |
560 | #endif |
557 | #endif |
… | |
… | |
620 | || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ |
617 | || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ |
621 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") |
618 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") |
622 | #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \ |
619 | #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \ |
623 | || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__ |
620 | || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__ |
624 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") |
621 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") |
625 | #elif __sparc || __sparc__ |
622 | #elif (__sparc || __sparc__) && !__sparcv8 |
626 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory") |
623 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory") |
627 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") |
624 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") |
628 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") |
625 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") |
629 | #elif defined __s390__ || defined __s390x__ |
626 | #elif defined __s390__ || defined __s390x__ |
630 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") |
627 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") |
… | |
… | |
663 | * #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST) |
660 | * #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST) |
664 | */ |
661 | */ |
665 | |
662 | |
666 | #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ |
663 | #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ |
667 | #define ECB_MEMORY_FENCE __sync_synchronize () |
664 | #define ECB_MEMORY_FENCE __sync_synchronize () |
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|
665 | #elif _MSC_VER >= 1500 /* VC++ 2008 */ |
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|
666 | /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */ |
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|
667 | #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) |
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|
668 | #define ECB_MEMORY_FENCE _ReadWriteBarrier (); MemoryBarrier() |
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|
669 | #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier (); MemoryBarrier() /* according to msdn, _ReadBarrier is not a load fence */ |
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|
670 | #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier (); MemoryBarrier() |
668 | #elif _MSC_VER >= 1400 /* VC++ 2005 */ |
671 | #elif _MSC_VER >= 1400 /* VC++ 2005 */ |
669 | #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) |
672 | #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) |
670 | #define ECB_MEMORY_FENCE _ReadWriteBarrier () |
673 | #define ECB_MEMORY_FENCE _ReadWriteBarrier () |
671 | #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ |
674 | #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ |
672 | #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () |
675 | #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () |
… | |
… | |
1073 | |
1076 | |
1074 | #ifndef ECB_NO_LIBM |
1077 | #ifndef ECB_NO_LIBM |
1075 | |
1078 | |
1076 | #include <math.h> /* for frexp*, ldexp*, INFINITY, NAN */ |
1079 | #include <math.h> /* for frexp*, ldexp*, INFINITY, NAN */ |
1077 | |
1080 | |
|
|
1081 | /* only the oldest of old doesn't have this one. solaris. */ |
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|
1082 | #ifdef INFINITY |
|
|
1083 | #define ECB_INFINITY INFINITY |
|
|
1084 | #else |
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|
1085 | #define ECB_INFINITY HUGE_VAL |
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|
1086 | #endif |
|
|
1087 | |
1078 | #ifdef NEN |
1088 | #ifdef NAN |
1079 | #define ECB_NAN NAN |
1089 | #define ECB_NAN NAN |
1080 | #else |
1090 | #else |
1081 | #define ECB_NAN INFINITY |
1091 | #define ECB_NAN ECB_INFINITY |
1082 | #endif |
1092 | #endif |
1083 | |
1093 | |
1084 | /* converts an ieee half/binary16 to a float */ |
1094 | /* converts an ieee half/binary16 to a float */ |
1085 | ecb_function_ float ecb_binary16_to_float (uint16_t x) ecb_const; |
1095 | ecb_function_ float ecb_binary16_to_float (uint16_t x) ecb_const; |
1086 | ecb_function_ float |
1096 | ecb_function_ float |
… | |
… | |
1091 | float r; |
1101 | float r; |
1092 | |
1102 | |
1093 | if (!e ) r = ldexpf (m , -24); |
1103 | if (!e ) r = ldexpf (m , -24); |
1094 | else if (e != 31) r = ldexpf (m + 0x400, e - 25); |
1104 | else if (e != 31) r = ldexpf (m + 0x400, e - 25); |
1095 | else if (m ) r = ECB_NAN; |
1105 | else if (m ) r = ECB_NAN; |
1096 | else r = INFINITY; |
1106 | else r = ECB_INFINITY; |
1097 | |
1107 | |
1098 | return x & 0x8000 ? -r : r; |
1108 | return x & 0x8000 ? -r : r; |
1099 | } |
1109 | } |
1100 | |
1110 | |
1101 | /* convert a float to ieee single/binary32 */ |
1111 | /* convert a float to ieee single/binary32 */ |
… | |
… | |
2548 | { |
2558 | { |
2549 | return userdata; |
2559 | return userdata; |
2550 | } |
2560 | } |
2551 | |
2561 | |
2552 | void |
2562 | void |
2553 | ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) EV_THROW |
2563 | ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_THROW |
2554 | { |
2564 | { |
2555 | invoke_cb = invoke_pending_cb; |
2565 | invoke_cb = invoke_pending_cb; |
2556 | } |
2566 | } |
2557 | |
2567 | |
2558 | void |
2568 | void |
2559 | ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW |
2569 | ev_set_loop_release_cb (EV_P_ ev_loop_callback_nothrow release, ev_loop_callback_nothrow acquire) EV_THROW |
2560 | { |
2570 | { |
2561 | release_cb = release; |
2571 | release_cb = release; |
2562 | acquire_cb = acquire; |
2572 | acquire_cb = acquire; |
2563 | } |
2573 | } |
2564 | #endif |
2574 | #endif |