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Comparing libev/ev.c (file contents):
Revision 1.478 by root, Sun Oct 11 13:38:44 2015 UTC vs.
Revision 1.483 by root, Tue Jul 31 04:45:58 2018 UTC

162# define EV_USE_EVENTFD 0 162# define EV_USE_EVENTFD 0
163# endif 163# endif
164 164
165#endif 165#endif
166 166
167/* OS X, in its infinite idiocy, actually HARDCODES
168 * a limit of 1024 into their select. Where people have brains,
169 * OS X engineers apparently have a vacuum. Or maybe they were
170 * ordered to have a vacuum, or they do anything for money.
171 * This might help. Or not.
172 * Note that this must be defined early, as other include files
173 * will rely on this define as well.
174 */
175#define _DARWIN_UNLIMITED_SELECT 1
176
167#include <stdlib.h> 177#include <stdlib.h>
168#include <string.h> 178#include <string.h>
169#include <fcntl.h> 179#include <fcntl.h>
170#include <stddef.h> 180#include <stddef.h>
171 181
208# ifndef EV_SELECT_IS_WINSOCKET 218# ifndef EV_SELECT_IS_WINSOCKET
209# define EV_SELECT_IS_WINSOCKET 1 219# define EV_SELECT_IS_WINSOCKET 1
210# endif 220# endif
211# undef EV_AVOID_STDIO 221# undef EV_AVOID_STDIO
212#endif 222#endif
213
214/* OS X, in its infinite idiocy, actually HARDCODES
215 * a limit of 1024 into their select. Where people have brains,
216 * OS X engineers apparently have a vacuum. Or maybe they were
217 * ordered to have a vacuum, or they do anything for money.
218 * This might help. Or not.
219 */
220#define _DARWIN_UNLIMITED_SELECT 1
221 223
222/* this block tries to deduce configuration from header-defined symbols and defaults */ 224/* this block tries to deduce configuration from header-defined symbols and defaults */
223 225
224/* try to deduce the maximum number of signals on this platform */ 226/* try to deduce the maximum number of signals on this platform */
225#if defined EV_NSIG 227#if defined EV_NSIG
363 365
364#ifndef EV_HEAP_CACHE_AT 366#ifndef EV_HEAP_CACHE_AT
365# define EV_HEAP_CACHE_AT EV_FEATURE_DATA 367# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
366#endif 368#endif
367 369
368#ifdef ANDROID 370#ifdef __ANDROID__
369/* supposedly, android doesn't typedef fd_mask */ 371/* supposedly, android doesn't typedef fd_mask */
370# undef EV_USE_SELECT 372# undef EV_USE_SELECT
371# define EV_USE_SELECT 0 373# define EV_USE_SELECT 0
372/* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */ 374/* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */
373# undef EV_USE_CLOCK_SYSCALL 375# undef EV_USE_CLOCK_SYSCALL
532 534
533#ifndef ECB_H 535#ifndef ECB_H
534#define ECB_H 536#define ECB_H
535 537
536/* 16 bits major, 16 bits minor */ 538/* 16 bits major, 16 bits minor */
537#define ECB_VERSION 0x00010004 539#define ECB_VERSION 0x00010005
538 540
539#ifdef _WIN32 541#ifdef _WIN32
540 typedef signed char int8_t; 542 typedef signed char int8_t;
541 typedef unsigned char uint8_t; 543 typedef unsigned char uint8_t;
542 typedef signed short int16_t; 544 typedef signed short int16_t;
559 typedef uint32_t uintptr_t; 561 typedef uint32_t uintptr_t;
560 typedef int32_t intptr_t; 562 typedef int32_t intptr_t;
561 #endif 563 #endif
562#else 564#else
563 #include <inttypes.h> 565 #include <inttypes.h>
564 #if UINTMAX_MAX > 0xffffffffU 566 #if (defined INTPTR_MAX ? INTPTR_MAX : ULONG_MAX) > 0xffffffffU
565 #define ECB_PTRSIZE 8 567 #define ECB_PTRSIZE 8
566 #else 568 #else
567 #define ECB_PTRSIZE 4 569 #define ECB_PTRSIZE 4
568 #endif 570 #endif
569#endif 571#endif
645#endif 647#endif
646 648
647/* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/compiler_ref/compiler_builtins.html */ 649/* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/compiler_ref/compiler_builtins.html */
648#if __xlC__ && ECB_CPP 650#if __xlC__ && ECB_CPP
649 #include <builtins.h> 651 #include <builtins.h>
652#endif
653
654#if 1400 <= _MSC_VER
655 #include <intrin.h> /* fence functions _ReadBarrier, also bit search functions _BitScanReverse */
650#endif 656#endif
651 657
652#ifndef ECB_MEMORY_FENCE 658#ifndef ECB_MEMORY_FENCE
653 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 659 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
654 #if __i386 || __i386__ 660 #if __i386 || __i386__
659 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") 665 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
660 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") 666 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
661 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") 667 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
662 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ 668 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
663 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") 669 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
670 #elif defined __ARM_ARCH_2__ \
671 || defined __ARM_ARCH_3__ || defined __ARM_ARCH_3M__ \
672 || defined __ARM_ARCH_4__ || defined __ARM_ARCH_4T__ \
673 || defined __ARM_ARCH_5__ || defined __ARM_ARCH_5E__ \
674 || defined __ARM_ARCH_5T__ || defined __ARM_ARCH_5TE__ \
675 || defined __ARM_ARCH_5TEJ__
676 /* should not need any, unless running old code on newer cpu - arm doesn't support that */
664 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \ 677 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
665 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ 678 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ \
679 || defined __ARM_ARCH_6T2__
666 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") 680 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory")
667 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \ 681 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
668 || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__ 682 || defined __ARM_ARCH_7R__ || defined __ARM_ARCH_7M__
669 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") 683 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
670 #elif __aarch64__ 684 #elif __aarch64__
671 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory") 685 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory")
672 #elif (__sparc || __sparc__) && !(__sparc_v8__ || defined __sparcv8) 686 #elif (__sparc || __sparc__) && !(__sparc_v8__ || defined __sparcv8)
673 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory") 687 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory")
915#else 929#else
916 ecb_function_ ecb_const int ecb_ctz32 (uint32_t x); 930 ecb_function_ ecb_const int ecb_ctz32 (uint32_t x);
917 ecb_function_ ecb_const int 931 ecb_function_ ecb_const int
918 ecb_ctz32 (uint32_t x) 932 ecb_ctz32 (uint32_t x)
919 { 933 {
934#if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM)
935 unsigned long r;
936 _BitScanForward (&r, x);
937 return (int)r;
938#else
920 int r = 0; 939 int r = 0;
921 940
922 x &= ~x + 1; /* this isolates the lowest bit */ 941 x &= ~x + 1; /* this isolates the lowest bit */
923 942
924#if ECB_branchless_on_i386 943#if ECB_branchless_on_i386
934 if (x & 0xff00ff00) r += 8; 953 if (x & 0xff00ff00) r += 8;
935 if (x & 0xffff0000) r += 16; 954 if (x & 0xffff0000) r += 16;
936#endif 955#endif
937 956
938 return r; 957 return r;
958#endif
939 } 959 }
940 960
941 ecb_function_ ecb_const int ecb_ctz64 (uint64_t x); 961 ecb_function_ ecb_const int ecb_ctz64 (uint64_t x);
942 ecb_function_ ecb_const int 962 ecb_function_ ecb_const int
943 ecb_ctz64 (uint64_t x) 963 ecb_ctz64 (uint64_t x)
944 { 964 {
965#if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM)
966 unsigned long r;
967 _BitScanForward64 (&r, x);
968 return (int)r;
969#else
945 int shift = x & 0xffffffffU ? 0 : 32; 970 int shift = x & 0xffffffff ? 0 : 32;
946 return ecb_ctz32 (x >> shift) + shift; 971 return ecb_ctz32 (x >> shift) + shift;
972#endif
947 } 973 }
948 974
949 ecb_function_ ecb_const int ecb_popcount32 (uint32_t x); 975 ecb_function_ ecb_const int ecb_popcount32 (uint32_t x);
950 ecb_function_ ecb_const int 976 ecb_function_ ecb_const int
951 ecb_popcount32 (uint32_t x) 977 ecb_popcount32 (uint32_t x)
959 } 985 }
960 986
961 ecb_function_ ecb_const int ecb_ld32 (uint32_t x); 987 ecb_function_ ecb_const int ecb_ld32 (uint32_t x);
962 ecb_function_ ecb_const int ecb_ld32 (uint32_t x) 988 ecb_function_ ecb_const int ecb_ld32 (uint32_t x)
963 { 989 {
990#if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM)
991 unsigned long r;
992 _BitScanReverse (&r, x);
993 return (int)r;
994#else
964 int r = 0; 995 int r = 0;
965 996
966 if (x >> 16) { x >>= 16; r += 16; } 997 if (x >> 16) { x >>= 16; r += 16; }
967 if (x >> 8) { x >>= 8; r += 8; } 998 if (x >> 8) { x >>= 8; r += 8; }
968 if (x >> 4) { x >>= 4; r += 4; } 999 if (x >> 4) { x >>= 4; r += 4; }
969 if (x >> 2) { x >>= 2; r += 2; } 1000 if (x >> 2) { x >>= 2; r += 2; }
970 if (x >> 1) { r += 1; } 1001 if (x >> 1) { r += 1; }
971 1002
972 return r; 1003 return r;
1004#endif
973 } 1005 }
974 1006
975 ecb_function_ ecb_const int ecb_ld64 (uint64_t x); 1007 ecb_function_ ecb_const int ecb_ld64 (uint64_t x);
976 ecb_function_ ecb_const int ecb_ld64 (uint64_t x) 1008 ecb_function_ ecb_const int ecb_ld64 (uint64_t x)
977 { 1009 {
1010#if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM)
1011 unsigned long r;
1012 _BitScanReverse64 (&r, x);
1013 return (int)r;
1014#else
978 int r = 0; 1015 int r = 0;
979 1016
980 if (x >> 32) { x >>= 32; r += 32; } 1017 if (x >> 32) { x >>= 32; r += 32; }
981 1018
982 return r + ecb_ld32 (x); 1019 return r + ecb_ld32 (x);
1020#endif
983 } 1021 }
984#endif 1022#endif
985 1023
986ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x); 1024ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x);
987ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); } 1025ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); }
1090#endif 1128#endif
1091 1129
1092/* try to tell the compiler that some condition is definitely true */ 1130/* try to tell the compiler that some condition is definitely true */
1093#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0 1131#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0
1094 1132
1095ecb_inline ecb_const unsigned char ecb_byteorder_helper (void); 1133ecb_inline ecb_const uint32_t ecb_byteorder_helper (void);
1096ecb_inline ecb_const unsigned char 1134ecb_inline ecb_const uint32_t
1097ecb_byteorder_helper (void) 1135ecb_byteorder_helper (void)
1098{ 1136{
1099 /* the union code still generates code under pressure in gcc, */ 1137 /* the union code still generates code under pressure in gcc, */
1100 /* but less than using pointers, and always seems to */ 1138 /* but less than using pointers, and always seems to */
1101 /* successfully return a constant. */ 1139 /* successfully return a constant. */
1102 /* the reason why we have this horrible preprocessor mess */ 1140 /* the reason why we have this horrible preprocessor mess */
1103 /* is to avoid it in all cases, at least on common architectures */ 1141 /* is to avoid it in all cases, at least on common architectures */
1104 /* or when using a recent enough gcc version (>= 4.6) */ 1142 /* or when using a recent enough gcc version (>= 4.6) */
1105#if ((__i386 || __i386__) && !__VOS__) || _M_IX86 || ECB_GCC_AMD64 || ECB_MSVC_AMD64
1106 return 0x44;
1107#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__ 1143#if (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__) \
1144 || ((__i386 || __i386__ || _M_IX86 || ECB_GCC_AMD64 || ECB_MSVC_AMD64) && !__VOS__)
1145 #define ECB_LITTLE_ENDIAN 1
1108 return 0x44; 1146 return 0x44332211;
1109#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__ 1147#elif (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__) \
1148 || ((__AARCH64EB__ || __MIPSEB__ || __ARMEB__) && !__VOS__)
1149 #define ECB_BIG_ENDIAN 1
1110 return 0x11; 1150 return 0x11223344;
1111#else 1151#else
1112 union 1152 union
1113 { 1153 {
1154 uint8_t c[4];
1114 uint32_t i; 1155 uint32_t u;
1115 uint8_t c;
1116 } u = { 0x11223344 }; 1156 } u = { 0x11, 0x22, 0x33, 0x44 };
1117 return u.c; 1157 return u.u;
1118#endif 1158#endif
1119} 1159}
1120 1160
1121ecb_inline ecb_const ecb_bool ecb_big_endian (void); 1161ecb_inline ecb_const ecb_bool ecb_big_endian (void);
1122ecb_inline ecb_const ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; } 1162ecb_inline ecb_const ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11223344; }
1123ecb_inline ecb_const ecb_bool ecb_little_endian (void); 1163ecb_inline ecb_const ecb_bool ecb_little_endian (void);
1124ecb_inline ecb_const ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; } 1164ecb_inline ecb_const ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44332211; }
1125 1165
1126#if ECB_GCC_VERSION(3,0) || ECB_C99 1166#if ECB_GCC_VERSION(3,0) || ECB_C99
1127 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) 1167 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
1128#else 1168#else
1129 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) 1169 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
1153 return N; 1193 return N;
1154 } 1194 }
1155#else 1195#else
1156 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) 1196 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
1157#endif 1197#endif
1198
1199ecb_function_ ecb_const uint32_t ecb_binary16_to_binary32 (uint32_t x);
1200ecb_function_ ecb_const uint32_t
1201ecb_binary16_to_binary32 (uint32_t x)
1202{
1203 unsigned int s = (x & 0x8000) << (31 - 15);
1204 int e = (x >> 10) & 0x001f;
1205 unsigned int m = x & 0x03ff;
1206
1207 if (ecb_expect_false (e == 31))
1208 /* infinity or NaN */
1209 e = 255 - (127 - 15);
1210 else if (ecb_expect_false (!e))
1211 {
1212 if (ecb_expect_true (!m))
1213 /* zero, handled by code below by forcing e to 0 */
1214 e = 0 - (127 - 15);
1215 else
1216 {
1217 /* subnormal, renormalise */
1218 unsigned int s = 10 - ecb_ld32 (m);
1219
1220 m = (m << s) & 0x3ff; /* mask implicit bit */
1221 e -= s - 1;
1222 }
1223 }
1224
1225 /* e and m now are normalised, or zero, (or inf or nan) */
1226 e += 127 - 15;
1227
1228 return s | (e << 23) | (m << (23 - 10));
1229}
1230
1231ecb_function_ ecb_const uint16_t ecb_binary32_to_binary16 (uint32_t x);
1232ecb_function_ ecb_const uint16_t
1233ecb_binary32_to_binary16 (uint32_t x)
1234{
1235 unsigned int s = (x >> 16) & 0x00008000; /* sign bit, the easy part */
1236 unsigned int e = ((x >> 23) & 0x000000ff) - (127 - 15); /* the desired exponent */
1237 unsigned int m = x & 0x007fffff;
1238
1239 x &= 0x7fffffff;
1240
1241 /* if it's within range of binary16 normals, use fast path */
1242 if (ecb_expect_true (0x38800000 <= x && x <= 0x477fefff))
1243 {
1244 /* mantissa round-to-even */
1245 m += 0x00000fff + ((m >> (23 - 10)) & 1);
1246
1247 /* handle overflow */
1248 if (ecb_expect_false (m >= 0x00800000))
1249 {
1250 m >>= 1;
1251 e += 1;
1252 }
1253
1254 return s | (e << 10) | (m >> (23 - 10));
1255 }
1256
1257 /* handle large numbers and infinity */
1258 if (ecb_expect_true (0x477fefff < x && x <= 0x7f800000))
1259 return s | 0x7c00;
1260
1261 /* handle zero, subnormals and small numbers */
1262 if (ecb_expect_true (x < 0x38800000))
1263 {
1264 /* zero */
1265 if (ecb_expect_true (!x))
1266 return s;
1267
1268 /* handle subnormals */
1269
1270 /* too small, will be zero */
1271 if (e < (14 - 24)) /* might not be sharp, but is good enough */
1272 return s;
1273
1274 m |= 0x00800000; /* make implicit bit explicit */
1275
1276 /* very tricky - we need to round to the nearest e (+10) bit value */
1277 {
1278 unsigned int bits = 14 - e;
1279 unsigned int half = (1 << (bits - 1)) - 1;
1280 unsigned int even = (m >> bits) & 1;
1281
1282 /* if this overflows, we will end up with a normalised number */
1283 m = (m + half + even) >> bits;
1284 }
1285
1286 return s | m;
1287 }
1288
1289 /* handle NaNs, preserve leftmost nan bits, but make sure we don't turn them into infinities */
1290 m >>= 13;
1291
1292 return s | 0x7c00 | m | !m;
1293}
1158 1294
1159/*******************************************************************************/ 1295/*******************************************************************************/
1160/* floating point stuff, can be disabled by defining ECB_NO_LIBM */ 1296/* floating point stuff, can be disabled by defining ECB_NO_LIBM */
1161 1297
1162/* basically, everything uses "ieee pure-endian" floating point numbers */ 1298/* basically, everything uses "ieee pure-endian" floating point numbers */
1205 #else 1341 #else
1206 #define ecb_ldexpf(x,e) (float) ldexp ((double) (x), (e)) 1342 #define ecb_ldexpf(x,e) (float) ldexp ((double) (x), (e))
1207 #define ecb_frexpf(x,e) (float) frexp ((double) (x), (e)) 1343 #define ecb_frexpf(x,e) (float) frexp ((double) (x), (e))
1208 #endif 1344 #endif
1209 1345
1210 /* converts an ieee half/binary16 to a float */
1211 ecb_function_ ecb_const float ecb_binary16_to_float (uint16_t x);
1212 ecb_function_ ecb_const float
1213 ecb_binary16_to_float (uint16_t x)
1214 {
1215 int e = (x >> 10) & 0x1f;
1216 int m = x & 0x3ff;
1217 float r;
1218
1219 if (!e ) r = ecb_ldexpf (m , -24);
1220 else if (e != 31) r = ecb_ldexpf (m + 0x400, e - 25);
1221 else if (m ) r = ECB_NAN;
1222 else r = ECB_INFINITY;
1223
1224 return x & 0x8000 ? -r : r;
1225 }
1226
1227 /* convert a float to ieee single/binary32 */ 1346 /* convert a float to ieee single/binary32 */
1228 ecb_function_ ecb_const uint32_t ecb_float_to_binary32 (float x); 1347 ecb_function_ ecb_const uint32_t ecb_float_to_binary32 (float x);
1229 ecb_function_ ecb_const uint32_t 1348 ecb_function_ ecb_const uint32_t
1230 ecb_float_to_binary32 (float x) 1349 ecb_float_to_binary32 (float x)
1231 { 1350 {
1360 1479
1361 r = neg ? -r : r; 1480 r = neg ? -r : r;
1362 #endif 1481 #endif
1363 1482
1364 return r; 1483 return r;
1484 }
1485
1486 /* convert a float to ieee half/binary16 */
1487 ecb_function_ ecb_const uint16_t ecb_float_to_binary16 (float x);
1488 ecb_function_ ecb_const uint16_t
1489 ecb_float_to_binary16 (float x)
1490 {
1491 return ecb_binary32_to_binary16 (ecb_float_to_binary32 (x));
1492 }
1493
1494 /* convert an ieee half/binary16 to float */
1495 ecb_function_ ecb_const float ecb_binary16_to_float (uint16_t x);
1496 ecb_function_ ecb_const float
1497 ecb_binary16_to_float (uint16_t x)
1498 {
1499 return ecb_binary32_to_float (ecb_binary16_to_binary32 (x));
1365 } 1500 }
1366 1501
1367#endif 1502#endif
1368 1503
1369#endif 1504#endif
1394#define inline_size ecb_inline 1529#define inline_size ecb_inline
1395 1530
1396#if EV_FEATURE_CODE 1531#if EV_FEATURE_CODE
1397# define inline_speed ecb_inline 1532# define inline_speed ecb_inline
1398#else 1533#else
1399# define inline_speed static noinline 1534# define inline_speed noinline static
1400#endif 1535#endif
1401 1536
1402#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 1537#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
1403 1538
1404#if EV_MINPRI == EV_MAXPRI 1539#if EV_MINPRI == EV_MAXPRI
1451#else 1586#else
1452 1587
1453#include <float.h> 1588#include <float.h>
1454 1589
1455/* a floor() replacement function, should be independent of ev_tstamp type */ 1590/* a floor() replacement function, should be independent of ev_tstamp type */
1591noinline
1456static ev_tstamp noinline 1592static ev_tstamp
1457ev_floor (ev_tstamp v) 1593ev_floor (ev_tstamp v)
1458{ 1594{
1459 /* the choice of shift factor is not terribly important */ 1595 /* the choice of shift factor is not terribly important */
1460#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ 1596#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
1461 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; 1597 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
1493 1629
1494#ifdef __linux 1630#ifdef __linux
1495# include <sys/utsname.h> 1631# include <sys/utsname.h>
1496#endif 1632#endif
1497 1633
1498static unsigned int noinline ecb_cold 1634noinline ecb_cold
1635static unsigned int
1499ev_linux_version (void) 1636ev_linux_version (void)
1500{ 1637{
1501#ifdef __linux 1638#ifdef __linux
1502 unsigned int v = 0; 1639 unsigned int v = 0;
1503 struct utsname buf; 1640 struct utsname buf;
1532} 1669}
1533 1670
1534/*****************************************************************************/ 1671/*****************************************************************************/
1535 1672
1536#if EV_AVOID_STDIO 1673#if EV_AVOID_STDIO
1537static void noinline ecb_cold 1674noinline ecb_cold
1675static void
1538ev_printerr (const char *msg) 1676ev_printerr (const char *msg)
1539{ 1677{
1540 write (STDERR_FILENO, msg, strlen (msg)); 1678 write (STDERR_FILENO, msg, strlen (msg));
1541} 1679}
1542#endif 1680#endif
1543 1681
1544static void (*syserr_cb)(const char *msg) EV_THROW; 1682static void (*syserr_cb)(const char *msg) EV_THROW;
1545 1683
1546void ecb_cold 1684ecb_cold
1685void
1547ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW 1686ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW
1548{ 1687{
1549 syserr_cb = cb; 1688 syserr_cb = cb;
1550} 1689}
1551 1690
1552static void noinline ecb_cold 1691noinline ecb_cold
1692static void
1553ev_syserr (const char *msg) 1693ev_syserr (const char *msg)
1554{ 1694{
1555 if (!msg) 1695 if (!msg)
1556 msg = "(libev) system error"; 1696 msg = "(libev) system error";
1557 1697
1588 return 0; 1728 return 0;
1589} 1729}
1590 1730
1591static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul; 1731static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul;
1592 1732
1593void ecb_cold 1733ecb_cold
1734void
1594ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW 1735ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW
1595{ 1736{
1596 alloc = cb; 1737 alloc = cb;
1597} 1738}
1598 1739
1767 struct timespec ts; 1908 struct timespec ts;
1768 1909
1769 EV_TS_SET (ts, delay); 1910 EV_TS_SET (ts, delay);
1770 nanosleep (&ts, 0); 1911 nanosleep (&ts, 0);
1771#elif defined _WIN32 1912#elif defined _WIN32
1913 /* maybe this should round up, as ms is very low resolution */
1914 /* compared to select (µs) or nanosleep (ns) */
1772 Sleep ((unsigned long)(delay * 1e3)); 1915 Sleep ((unsigned long)(delay * 1e3));
1773#else 1916#else
1774 struct timeval tv; 1917 struct timeval tv;
1775 1918
1776 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 1919 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
1807 } 1950 }
1808 1951
1809 return ncur; 1952 return ncur;
1810} 1953}
1811 1954
1812static void * noinline ecb_cold 1955noinline ecb_cold
1956static void *
1813array_realloc (int elem, void *base, int *cur, int cnt) 1957array_realloc (int elem, void *base, int *cur, int cnt)
1814{ 1958{
1815 *cur = array_nextsize (elem, *cur, cnt); 1959 *cur = array_nextsize (elem, *cur, cnt);
1816 return ev_realloc (base, elem * *cur); 1960 return ev_realloc (base, elem * *cur);
1817} 1961}
1820 memset ((void *)(base), 0, sizeof (*(base)) * (count)) 1964 memset ((void *)(base), 0, sizeof (*(base)) * (count))
1821 1965
1822#define array_needsize(type,base,cur,cnt,init) \ 1966#define array_needsize(type,base,cur,cnt,init) \
1823 if (expect_false ((cnt) > (cur))) \ 1967 if (expect_false ((cnt) > (cur))) \
1824 { \ 1968 { \
1825 int ecb_unused ocur_ = (cur); \ 1969 ecb_unused int ocur_ = (cur); \
1826 (base) = (type *)array_realloc \ 1970 (base) = (type *)array_realloc \
1827 (sizeof (type), (base), &(cur), (cnt)); \ 1971 (sizeof (type), (base), &(cur), (cnt)); \
1828 init ((base) + (ocur_), (cur) - ocur_); \ 1972 init ((base) + (ocur_), (cur) - ocur_); \
1829 } 1973 }
1830 1974
1842 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 1986 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0
1843 1987
1844/*****************************************************************************/ 1988/*****************************************************************************/
1845 1989
1846/* dummy callback for pending events */ 1990/* dummy callback for pending events */
1847static void noinline 1991noinline
1992static void
1848pendingcb (EV_P_ ev_prepare *w, int revents) 1993pendingcb (EV_P_ ev_prepare *w, int revents)
1849{ 1994{
1850} 1995}
1851 1996
1852void noinline 1997noinline
1998void
1853ev_feed_event (EV_P_ void *w, int revents) EV_THROW 1999ev_feed_event (EV_P_ void *w, int revents) EV_THROW
1854{ 2000{
1855 W w_ = (W)w; 2001 W w_ = (W)w;
1856 int pri = ABSPRI (w_); 2002 int pri = ABSPRI (w_);
1857 2003
1987 2133
1988 fdchangecnt = 0; 2134 fdchangecnt = 0;
1989} 2135}
1990 2136
1991/* something about the given fd changed */ 2137/* something about the given fd changed */
1992inline_size void 2138inline_size
2139void
1993fd_change (EV_P_ int fd, int flags) 2140fd_change (EV_P_ int fd, int flags)
1994{ 2141{
1995 unsigned char reify = anfds [fd].reify; 2142 unsigned char reify = anfds [fd].reify;
1996 anfds [fd].reify |= flags; 2143 anfds [fd].reify |= flags;
1997 2144
2002 fdchanges [fdchangecnt - 1] = fd; 2149 fdchanges [fdchangecnt - 1] = fd;
2003 } 2150 }
2004} 2151}
2005 2152
2006/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ 2153/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
2007inline_speed void ecb_cold 2154inline_speed ecb_cold void
2008fd_kill (EV_P_ int fd) 2155fd_kill (EV_P_ int fd)
2009{ 2156{
2010 ev_io *w; 2157 ev_io *w;
2011 2158
2012 while ((w = (ev_io *)anfds [fd].head)) 2159 while ((w = (ev_io *)anfds [fd].head))
2015 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 2162 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
2016 } 2163 }
2017} 2164}
2018 2165
2019/* check whether the given fd is actually valid, for error recovery */ 2166/* check whether the given fd is actually valid, for error recovery */
2020inline_size int ecb_cold 2167inline_size ecb_cold int
2021fd_valid (int fd) 2168fd_valid (int fd)
2022{ 2169{
2023#ifdef _WIN32 2170#ifdef _WIN32
2024 return EV_FD_TO_WIN32_HANDLE (fd) != -1; 2171 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
2025#else 2172#else
2026 return fcntl (fd, F_GETFD) != -1; 2173 return fcntl (fd, F_GETFD) != -1;
2027#endif 2174#endif
2028} 2175}
2029 2176
2030/* called on EBADF to verify fds */ 2177/* called on EBADF to verify fds */
2031static void noinline ecb_cold 2178noinline ecb_cold
2179static void
2032fd_ebadf (EV_P) 2180fd_ebadf (EV_P)
2033{ 2181{
2034 int fd; 2182 int fd;
2035 2183
2036 for (fd = 0; fd < anfdmax; ++fd) 2184 for (fd = 0; fd < anfdmax; ++fd)
2038 if (!fd_valid (fd) && errno == EBADF) 2186 if (!fd_valid (fd) && errno == EBADF)
2039 fd_kill (EV_A_ fd); 2187 fd_kill (EV_A_ fd);
2040} 2188}
2041 2189
2042/* called on ENOMEM in select/poll to kill some fds and retry */ 2190/* called on ENOMEM in select/poll to kill some fds and retry */
2043static void noinline ecb_cold 2191noinline ecb_cold
2192static void
2044fd_enomem (EV_P) 2193fd_enomem (EV_P)
2045{ 2194{
2046 int fd; 2195 int fd;
2047 2196
2048 for (fd = anfdmax; fd--; ) 2197 for (fd = anfdmax; fd--; )
2052 break; 2201 break;
2053 } 2202 }
2054} 2203}
2055 2204
2056/* usually called after fork if backend needs to re-arm all fds from scratch */ 2205/* usually called after fork if backend needs to re-arm all fds from scratch */
2057static void noinline 2206noinline
2207static void
2058fd_rearm_all (EV_P) 2208fd_rearm_all (EV_P)
2059{ 2209{
2060 int fd; 2210 int fd;
2061 2211
2062 for (fd = 0; fd < anfdmax; ++fd) 2212 for (fd = 0; fd < anfdmax; ++fd)
2243 2393
2244/*****************************************************************************/ 2394/*****************************************************************************/
2245 2395
2246#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 2396#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2247 2397
2248static void noinline ecb_cold 2398noinline ecb_cold
2399static void
2249evpipe_init (EV_P) 2400evpipe_init (EV_P)
2250{ 2401{
2251 if (!ev_is_active (&pipe_w)) 2402 if (!ev_is_active (&pipe_w))
2252 { 2403 {
2253 int fds [2]; 2404 int fds [2];
2431#endif 2582#endif
2432 2583
2433 ev_feed_signal (signum); 2584 ev_feed_signal (signum);
2434} 2585}
2435 2586
2436void noinline 2587noinline
2588void
2437ev_feed_signal_event (EV_P_ int signum) EV_THROW 2589ev_feed_signal_event (EV_P_ int signum) EV_THROW
2438{ 2590{
2439 WL w; 2591 WL w;
2440 2592
2441 if (expect_false (signum <= 0 || signum >= EV_NSIG)) 2593 if (expect_false (signum <= 0 || signum >= EV_NSIG))
2558#endif 2710#endif
2559#if EV_USE_SELECT 2711#if EV_USE_SELECT
2560# include "ev_select.c" 2712# include "ev_select.c"
2561#endif 2713#endif
2562 2714
2563int ecb_cold 2715ecb_cold int
2564ev_version_major (void) EV_THROW 2716ev_version_major (void) EV_THROW
2565{ 2717{
2566 return EV_VERSION_MAJOR; 2718 return EV_VERSION_MAJOR;
2567} 2719}
2568 2720
2569int ecb_cold 2721ecb_cold int
2570ev_version_minor (void) EV_THROW 2722ev_version_minor (void) EV_THROW
2571{ 2723{
2572 return EV_VERSION_MINOR; 2724 return EV_VERSION_MINOR;
2573} 2725}
2574 2726
2575/* return true if we are running with elevated privileges and should ignore env variables */ 2727/* return true if we are running with elevated privileges and should ignore env variables */
2576int inline_size ecb_cold 2728inline_size ecb_cold int
2577enable_secure (void) 2729enable_secure (void)
2578{ 2730{
2579#ifdef _WIN32 2731#ifdef _WIN32
2580 return 0; 2732 return 0;
2581#else 2733#else
2582 return getuid () != geteuid () 2734 return getuid () != geteuid ()
2583 || getgid () != getegid (); 2735 || getgid () != getegid ();
2584#endif 2736#endif
2585} 2737}
2586 2738
2587unsigned int ecb_cold 2739ecb_cold
2740unsigned int
2588ev_supported_backends (void) EV_THROW 2741ev_supported_backends (void) EV_THROW
2589{ 2742{
2590 unsigned int flags = 0; 2743 unsigned int flags = 0;
2591 2744
2592 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2745 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
2596 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; 2749 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT;
2597 2750
2598 return flags; 2751 return flags;
2599} 2752}
2600 2753
2601unsigned int ecb_cold 2754ecb_cold
2755unsigned int
2602ev_recommended_backends (void) EV_THROW 2756ev_recommended_backends (void) EV_THROW
2603{ 2757{
2604 unsigned int flags = ev_supported_backends (); 2758 unsigned int flags = ev_supported_backends ();
2605 2759
2606#ifndef __NetBSD__ 2760#ifndef __NetBSD__
2618#endif 2772#endif
2619 2773
2620 return flags; 2774 return flags;
2621} 2775}
2622 2776
2623unsigned int ecb_cold 2777ecb_cold
2778unsigned int
2624ev_embeddable_backends (void) EV_THROW 2779ev_embeddable_backends (void) EV_THROW
2625{ 2780{
2626 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2781 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2627 2782
2628 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ 2783 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
2688 acquire_cb = acquire; 2843 acquire_cb = acquire;
2689} 2844}
2690#endif 2845#endif
2691 2846
2692/* initialise a loop structure, must be zero-initialised */ 2847/* initialise a loop structure, must be zero-initialised */
2693static void noinline ecb_cold 2848noinline ecb_cold
2849static void
2694loop_init (EV_P_ unsigned int flags) EV_THROW 2850loop_init (EV_P_ unsigned int flags) EV_THROW
2695{ 2851{
2696 if (!backend) 2852 if (!backend)
2697 { 2853 {
2698 origflags = flags; 2854 origflags = flags;
2785#endif 2941#endif
2786 } 2942 }
2787} 2943}
2788 2944
2789/* free up a loop structure */ 2945/* free up a loop structure */
2790void ecb_cold 2946ecb_cold
2947void
2791ev_loop_destroy (EV_P) 2948ev_loop_destroy (EV_P)
2792{ 2949{
2793 int i; 2950 int i;
2794 2951
2795#if EV_MULTIPLICITY 2952#if EV_MULTIPLICITY
2937 postfork = 0; 3094 postfork = 0;
2938} 3095}
2939 3096
2940#if EV_MULTIPLICITY 3097#if EV_MULTIPLICITY
2941 3098
3099ecb_cold
2942struct ev_loop * ecb_cold 3100struct ev_loop *
2943ev_loop_new (unsigned int flags) EV_THROW 3101ev_loop_new (unsigned int flags) EV_THROW
2944{ 3102{
2945 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 3103 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
2946 3104
2947 memset (EV_A, 0, sizeof (struct ev_loop)); 3105 memset (EV_A, 0, sizeof (struct ev_loop));
2955} 3113}
2956 3114
2957#endif /* multiplicity */ 3115#endif /* multiplicity */
2958 3116
2959#if EV_VERIFY 3117#if EV_VERIFY
2960static void noinline ecb_cold 3118noinline ecb_cold
3119static void
2961verify_watcher (EV_P_ W w) 3120verify_watcher (EV_P_ W w)
2962{ 3121{
2963 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); 3122 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
2964 3123
2965 if (w->pending) 3124 if (w->pending)
2966 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); 3125 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
2967} 3126}
2968 3127
2969static void noinline ecb_cold 3128noinline ecb_cold
3129static void
2970verify_heap (EV_P_ ANHE *heap, int N) 3130verify_heap (EV_P_ ANHE *heap, int N)
2971{ 3131{
2972 int i; 3132 int i;
2973 3133
2974 for (i = HEAP0; i < N + HEAP0; ++i) 3134 for (i = HEAP0; i < N + HEAP0; ++i)
2979 3139
2980 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 3140 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
2981 } 3141 }
2982} 3142}
2983 3143
2984static void noinline ecb_cold 3144noinline ecb_cold
3145static void
2985array_verify (EV_P_ W *ws, int cnt) 3146array_verify (EV_P_ W *ws, int cnt)
2986{ 3147{
2987 while (cnt--) 3148 while (cnt--)
2988 { 3149 {
2989 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); 3150 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
3078#endif 3239#endif
3079} 3240}
3080#endif 3241#endif
3081 3242
3082#if EV_MULTIPLICITY 3243#if EV_MULTIPLICITY
3244ecb_cold
3083struct ev_loop * ecb_cold 3245struct ev_loop *
3084#else 3246#else
3085int 3247int
3086#endif 3248#endif
3087ev_default_loop (unsigned int flags) EV_THROW 3249ev_default_loop (unsigned int flags) EV_THROW
3088{ 3250{
3136 count += pendingcnt [pri]; 3298 count += pendingcnt [pri];
3137 3299
3138 return count; 3300 return count;
3139} 3301}
3140 3302
3141void noinline 3303noinline
3304void
3142ev_invoke_pending (EV_P) 3305ev_invoke_pending (EV_P)
3143{ 3306{
3144 pendingpri = NUMPRI; 3307 pendingpri = NUMPRI;
3145 3308
3146 while (pendingpri) /* pendingpri possibly gets modified in the inner loop */ 3309 while (pendingpri) /* pendingpri possibly gets modified in the inner loop */
3221 } 3384 }
3222} 3385}
3223 3386
3224#if EV_PERIODIC_ENABLE 3387#if EV_PERIODIC_ENABLE
3225 3388
3226static void noinline 3389noinline
3390static void
3227periodic_recalc (EV_P_ ev_periodic *w) 3391periodic_recalc (EV_P_ ev_periodic *w)
3228{ 3392{
3229 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; 3393 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
3230 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval); 3394 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);
3231 3395
3289 } 3453 }
3290} 3454}
3291 3455
3292/* simply recalculate all periodics */ 3456/* simply recalculate all periodics */
3293/* TODO: maybe ensure that at least one event happens when jumping forward? */ 3457/* TODO: maybe ensure that at least one event happens when jumping forward? */
3294static void noinline ecb_cold 3458noinline ecb_cold
3459static void
3295periodics_reschedule (EV_P) 3460periodics_reschedule (EV_P)
3296{ 3461{
3297 int i; 3462 int i;
3298 3463
3299 /* adjust periodics after time jump */ 3464 /* adjust periodics after time jump */
3312 reheap (periodics, periodiccnt); 3477 reheap (periodics, periodiccnt);
3313} 3478}
3314#endif 3479#endif
3315 3480
3316/* adjust all timers by a given offset */ 3481/* adjust all timers by a given offset */
3317static void noinline ecb_cold 3482noinline ecb_cold
3483static void
3318timers_reschedule (EV_P_ ev_tstamp adjust) 3484timers_reschedule (EV_P_ ev_tstamp adjust)
3319{ 3485{
3320 int i; 3486 int i;
3321 3487
3322 for (i = 0; i < timercnt; ++i) 3488 for (i = 0; i < timercnt; ++i)
3690 w->active = 0; 3856 w->active = 0;
3691} 3857}
3692 3858
3693/*****************************************************************************/ 3859/*****************************************************************************/
3694 3860
3695void noinline 3861noinline
3862void
3696ev_io_start (EV_P_ ev_io *w) EV_THROW 3863ev_io_start (EV_P_ ev_io *w) EV_THROW
3697{ 3864{
3698 int fd = w->fd; 3865 int fd = w->fd;
3699 3866
3700 if (expect_false (ev_is_active (w))) 3867 if (expect_false (ev_is_active (w)))
3716 w->events &= ~EV__IOFDSET; 3883 w->events &= ~EV__IOFDSET;
3717 3884
3718 EV_FREQUENT_CHECK; 3885 EV_FREQUENT_CHECK;
3719} 3886}
3720 3887
3721void noinline 3888noinline
3889void
3722ev_io_stop (EV_P_ ev_io *w) EV_THROW 3890ev_io_stop (EV_P_ ev_io *w) EV_THROW
3723{ 3891{
3724 clear_pending (EV_A_ (W)w); 3892 clear_pending (EV_A_ (W)w);
3725 if (expect_false (!ev_is_active (w))) 3893 if (expect_false (!ev_is_active (w)))
3726 return; 3894 return;
3735 fd_change (EV_A_ w->fd, EV_ANFD_REIFY); 3903 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
3736 3904
3737 EV_FREQUENT_CHECK; 3905 EV_FREQUENT_CHECK;
3738} 3906}
3739 3907
3740void noinline 3908noinline
3909void
3741ev_timer_start (EV_P_ ev_timer *w) EV_THROW 3910ev_timer_start (EV_P_ ev_timer *w) EV_THROW
3742{ 3911{
3743 if (expect_false (ev_is_active (w))) 3912 if (expect_false (ev_is_active (w)))
3744 return; 3913 return;
3745 3914
3759 EV_FREQUENT_CHECK; 3928 EV_FREQUENT_CHECK;
3760 3929
3761 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 3930 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
3762} 3931}
3763 3932
3764void noinline 3933noinline
3934void
3765ev_timer_stop (EV_P_ ev_timer *w) EV_THROW 3935ev_timer_stop (EV_P_ ev_timer *w) EV_THROW
3766{ 3936{
3767 clear_pending (EV_A_ (W)w); 3937 clear_pending (EV_A_ (W)w);
3768 if (expect_false (!ev_is_active (w))) 3938 if (expect_false (!ev_is_active (w)))
3769 return; 3939 return;
3789 ev_stop (EV_A_ (W)w); 3959 ev_stop (EV_A_ (W)w);
3790 3960
3791 EV_FREQUENT_CHECK; 3961 EV_FREQUENT_CHECK;
3792} 3962}
3793 3963
3794void noinline 3964noinline
3965void
3795ev_timer_again (EV_P_ ev_timer *w) EV_THROW 3966ev_timer_again (EV_P_ ev_timer *w) EV_THROW
3796{ 3967{
3797 EV_FREQUENT_CHECK; 3968 EV_FREQUENT_CHECK;
3798 3969
3799 clear_pending (EV_A_ (W)w); 3970 clear_pending (EV_A_ (W)w);
3823{ 3994{
3824 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 3995 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
3825} 3996}
3826 3997
3827#if EV_PERIODIC_ENABLE 3998#if EV_PERIODIC_ENABLE
3828void noinline 3999noinline
4000void
3829ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW 4001ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW
3830{ 4002{
3831 if (expect_false (ev_is_active (w))) 4003 if (expect_false (ev_is_active (w)))
3832 return; 4004 return;
3833 4005
3853 EV_FREQUENT_CHECK; 4025 EV_FREQUENT_CHECK;
3854 4026
3855 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 4027 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
3856} 4028}
3857 4029
3858void noinline 4030noinline
4031void
3859ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW 4032ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW
3860{ 4033{
3861 clear_pending (EV_A_ (W)w); 4034 clear_pending (EV_A_ (W)w);
3862 if (expect_false (!ev_is_active (w))) 4035 if (expect_false (!ev_is_active (w)))
3863 return; 4036 return;
3881 ev_stop (EV_A_ (W)w); 4054 ev_stop (EV_A_ (W)w);
3882 4055
3883 EV_FREQUENT_CHECK; 4056 EV_FREQUENT_CHECK;
3884} 4057}
3885 4058
3886void noinline 4059noinline
4060void
3887ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW 4061ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW
3888{ 4062{
3889 /* TODO: use adjustheap and recalculation */ 4063 /* TODO: use adjustheap and recalculation */
3890 ev_periodic_stop (EV_A_ w); 4064 ev_periodic_stop (EV_A_ w);
3891 ev_periodic_start (EV_A_ w); 4065 ev_periodic_start (EV_A_ w);
3896# define SA_RESTART 0 4070# define SA_RESTART 0
3897#endif 4071#endif
3898 4072
3899#if EV_SIGNAL_ENABLE 4073#if EV_SIGNAL_ENABLE
3900 4074
3901void noinline 4075noinline
4076void
3902ev_signal_start (EV_P_ ev_signal *w) EV_THROW 4077ev_signal_start (EV_P_ ev_signal *w) EV_THROW
3903{ 4078{
3904 if (expect_false (ev_is_active (w))) 4079 if (expect_false (ev_is_active (w)))
3905 return; 4080 return;
3906 4081
3978 } 4153 }
3979 4154
3980 EV_FREQUENT_CHECK; 4155 EV_FREQUENT_CHECK;
3981} 4156}
3982 4157
3983void noinline 4158noinline
4159void
3984ev_signal_stop (EV_P_ ev_signal *w) EV_THROW 4160ev_signal_stop (EV_P_ ev_signal *w) EV_THROW
3985{ 4161{
3986 clear_pending (EV_A_ (W)w); 4162 clear_pending (EV_A_ (W)w);
3987 if (expect_false (!ev_is_active (w))) 4163 if (expect_false (!ev_is_active (w)))
3988 return; 4164 return;
4064 4240
4065#define DEF_STAT_INTERVAL 5.0074891 4241#define DEF_STAT_INTERVAL 5.0074891
4066#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ 4242#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */
4067#define MIN_STAT_INTERVAL 0.1074891 4243#define MIN_STAT_INTERVAL 0.1074891
4068 4244
4069static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); 4245noinline static void stat_timer_cb (EV_P_ ev_timer *w_, int revents);
4070 4246
4071#if EV_USE_INOTIFY 4247#if EV_USE_INOTIFY
4072 4248
4073/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ 4249/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */
4074# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) 4250# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
4075 4251
4076static void noinline 4252noinline
4253static void
4077infy_add (EV_P_ ev_stat *w) 4254infy_add (EV_P_ ev_stat *w)
4078{ 4255{
4079 w->wd = inotify_add_watch (fs_fd, w->path, 4256 w->wd = inotify_add_watch (fs_fd, w->path,
4080 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY 4257 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY
4081 | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO 4258 | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO
4145 if (ev_is_active (&w->timer)) ev_ref (EV_A); 4322 if (ev_is_active (&w->timer)) ev_ref (EV_A);
4146 ev_timer_again (EV_A_ &w->timer); 4323 ev_timer_again (EV_A_ &w->timer);
4147 if (ev_is_active (&w->timer)) ev_unref (EV_A); 4324 if (ev_is_active (&w->timer)) ev_unref (EV_A);
4148} 4325}
4149 4326
4150static void noinline 4327noinline
4328static void
4151infy_del (EV_P_ ev_stat *w) 4329infy_del (EV_P_ ev_stat *w)
4152{ 4330{
4153 int slot; 4331 int slot;
4154 int wd = w->wd; 4332 int wd = w->wd;
4155 4333
4162 4340
4163 /* remove this watcher, if others are watching it, they will rearm */ 4341 /* remove this watcher, if others are watching it, they will rearm */
4164 inotify_rm_watch (fs_fd, wd); 4342 inotify_rm_watch (fs_fd, wd);
4165} 4343}
4166 4344
4167static void noinline 4345noinline
4346static void
4168infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 4347infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
4169{ 4348{
4170 if (slot < 0) 4349 if (slot < 0)
4171 /* overflow, need to check for all hash slots */ 4350 /* overflow, need to check for all hash slots */
4172 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) 4351 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
4208 infy_wd (EV_A_ ev->wd, ev->wd, ev); 4387 infy_wd (EV_A_ ev->wd, ev->wd, ev);
4209 ofs += sizeof (struct inotify_event) + ev->len; 4388 ofs += sizeof (struct inotify_event) + ev->len;
4210 } 4389 }
4211} 4390}
4212 4391
4213inline_size void ecb_cold 4392inline_size ecb_cold
4393void
4214ev_check_2625 (EV_P) 4394ev_check_2625 (EV_P)
4215{ 4395{
4216 /* kernels < 2.6.25 are borked 4396 /* kernels < 2.6.25 are borked
4217 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html 4397 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
4218 */ 4398 */
4316 w->attr.st_nlink = 0; 4496 w->attr.st_nlink = 0;
4317 else if (!w->attr.st_nlink) 4497 else if (!w->attr.st_nlink)
4318 w->attr.st_nlink = 1; 4498 w->attr.st_nlink = 1;
4319} 4499}
4320 4500
4321static void noinline 4501noinline
4502static void
4322stat_timer_cb (EV_P_ ev_timer *w_, int revents) 4503stat_timer_cb (EV_P_ ev_timer *w_, int revents)
4323{ 4504{
4324 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); 4505 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
4325 4506
4326 ev_statdata prev = w->attr; 4507 ev_statdata prev = w->attr;
4536 EV_FREQUENT_CHECK; 4717 EV_FREQUENT_CHECK;
4537} 4718}
4538#endif 4719#endif
4539 4720
4540#if EV_EMBED_ENABLE 4721#if EV_EMBED_ENABLE
4541void noinline 4722noinline
4723void
4542ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW 4724ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW
4543{ 4725{
4544 ev_run (w->other, EVRUN_NOWAIT); 4726 ev_run (w->other, EVRUN_NOWAIT);
4545} 4727}
4546 4728
4843} 5025}
4844 5026
4845/*****************************************************************************/ 5027/*****************************************************************************/
4846 5028
4847#if EV_WALK_ENABLE 5029#if EV_WALK_ENABLE
4848void ecb_cold 5030ecb_cold
5031void
4849ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW 5032ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW
4850{ 5033{
4851 int i, j; 5034 int i, j;
4852 ev_watcher_list *wl, *wn; 5035 ev_watcher_list *wl, *wn;
4853 5036

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