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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 1.482 by root, Sat Jul 28 04:15:15 2018 UTC

363 363
364#ifndef EV_HEAP_CACHE_AT 364#ifndef EV_HEAP_CACHE_AT
365# define EV_HEAP_CACHE_AT EV_FEATURE_DATA 365# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
366#endif 366#endif
367 367
368#ifdef ANDROID 368#ifdef __ANDROID__
369/* supposedly, android doesn't typedef fd_mask */ 369/* supposedly, android doesn't typedef fd_mask */
370# undef EV_USE_SELECT 370# undef EV_USE_SELECT
371# define EV_USE_SELECT 0 371# define EV_USE_SELECT 0
372/* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */ 372/* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */
373# undef EV_USE_CLOCK_SYSCALL 373# undef EV_USE_CLOCK_SYSCALL
532 532
533#ifndef ECB_H 533#ifndef ECB_H
534#define ECB_H 534#define ECB_H
535 535
536/* 16 bits major, 16 bits minor */ 536/* 16 bits major, 16 bits minor */
537#define ECB_VERSION 0x00010004 537#define ECB_VERSION 0x00010005
538 538
539#ifdef _WIN32 539#ifdef _WIN32
540 typedef signed char int8_t; 540 typedef signed char int8_t;
541 typedef unsigned char uint8_t; 541 typedef unsigned char uint8_t;
542 typedef signed short int16_t; 542 typedef signed short int16_t;
559 typedef uint32_t uintptr_t; 559 typedef uint32_t uintptr_t;
560 typedef int32_t intptr_t; 560 typedef int32_t intptr_t;
561 #endif 561 #endif
562#else 562#else
563 #include <inttypes.h> 563 #include <inttypes.h>
564 #if UINTMAX_MAX > 0xffffffffU 564 #if (defined INTPTR_MAX ? INTPTR_MAX : ULONG_MAX) > 0xffffffffU
565 #define ECB_PTRSIZE 8 565 #define ECB_PTRSIZE 8
566 #else 566 #else
567 #define ECB_PTRSIZE 4 567 #define ECB_PTRSIZE 4
568 #endif 568 #endif
569#endif 569#endif
645#endif 645#endif
646 646
647/* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/compiler_ref/compiler_builtins.html */ 647/* 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 648#if __xlC__ && ECB_CPP
649 #include <builtins.h> 649 #include <builtins.h>
650#endif
651
652#if 1400 <= _MSC_VER
653 #include <intrin.h> /* fence functions _ReadBarrier, also bit search functions _BitScanReverse */
650#endif 654#endif
651 655
652#ifndef ECB_MEMORY_FENCE 656#ifndef ECB_MEMORY_FENCE
653 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 657 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
654 #if __i386 || __i386__ 658 #if __i386 || __i386__
659 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") 663 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
660 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") 664 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
661 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") 665 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
662 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ 666 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
663 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") 667 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
668 #elif defined __ARM_ARCH_2__ \
669 || defined __ARM_ARCH_3__ || defined __ARM_ARCH_3M__ \
670 || defined __ARM_ARCH_4__ || defined __ARM_ARCH_4T__ \
671 || defined __ARM_ARCH_5__ || defined __ARM_ARCH_5E__ \
672 || defined __ARM_ARCH_5T__ || defined __ARM_ARCH_5TE__ \
673 || defined __ARM_ARCH_5TEJ__
674 /* 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__ \ 675 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
665 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ 676 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ \
677 || defined __ARM_ARCH_6T2__
666 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") 678 #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__ \ 679 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
668 || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__ 680 || defined __ARM_ARCH_7R__ || defined __ARM_ARCH_7M__
669 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") 681 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
670 #elif __aarch64__ 682 #elif __aarch64__
671 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory") 683 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory")
672 #elif (__sparc || __sparc__) && !(__sparc_v8__ || defined __sparcv8) 684 #elif (__sparc || __sparc__) && !(__sparc_v8__ || defined __sparcv8)
673 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory") 685 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory")
915#else 927#else
916 ecb_function_ ecb_const int ecb_ctz32 (uint32_t x); 928 ecb_function_ ecb_const int ecb_ctz32 (uint32_t x);
917 ecb_function_ ecb_const int 929 ecb_function_ ecb_const int
918 ecb_ctz32 (uint32_t x) 930 ecb_ctz32 (uint32_t x)
919 { 931 {
932#if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM)
933 unsigned long r;
934 _BitScanForward (&r, x);
935 return (int)r;
936#else
920 int r = 0; 937 int r = 0;
921 938
922 x &= ~x + 1; /* this isolates the lowest bit */ 939 x &= ~x + 1; /* this isolates the lowest bit */
923 940
924#if ECB_branchless_on_i386 941#if ECB_branchless_on_i386
934 if (x & 0xff00ff00) r += 8; 951 if (x & 0xff00ff00) r += 8;
935 if (x & 0xffff0000) r += 16; 952 if (x & 0xffff0000) r += 16;
936#endif 953#endif
937 954
938 return r; 955 return r;
956#endif
939 } 957 }
940 958
941 ecb_function_ ecb_const int ecb_ctz64 (uint64_t x); 959 ecb_function_ ecb_const int ecb_ctz64 (uint64_t x);
942 ecb_function_ ecb_const int 960 ecb_function_ ecb_const int
943 ecb_ctz64 (uint64_t x) 961 ecb_ctz64 (uint64_t x)
944 { 962 {
963#if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM)
964 unsigned long r;
965 _BitScanForward64 (&r, x);
966 return (int)r;
967#else
945 int shift = x & 0xffffffffU ? 0 : 32; 968 int shift = x & 0xffffffff ? 0 : 32;
946 return ecb_ctz32 (x >> shift) + shift; 969 return ecb_ctz32 (x >> shift) + shift;
970#endif
947 } 971 }
948 972
949 ecb_function_ ecb_const int ecb_popcount32 (uint32_t x); 973 ecb_function_ ecb_const int ecb_popcount32 (uint32_t x);
950 ecb_function_ ecb_const int 974 ecb_function_ ecb_const int
951 ecb_popcount32 (uint32_t x) 975 ecb_popcount32 (uint32_t x)
959 } 983 }
960 984
961 ecb_function_ ecb_const int ecb_ld32 (uint32_t x); 985 ecb_function_ ecb_const int ecb_ld32 (uint32_t x);
962 ecb_function_ ecb_const int ecb_ld32 (uint32_t x) 986 ecb_function_ ecb_const int ecb_ld32 (uint32_t x)
963 { 987 {
988#if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM)
989 unsigned long r;
990 _BitScanReverse (&r, x);
991 return (int)r;
992#else
964 int r = 0; 993 int r = 0;
965 994
966 if (x >> 16) { x >>= 16; r += 16; } 995 if (x >> 16) { x >>= 16; r += 16; }
967 if (x >> 8) { x >>= 8; r += 8; } 996 if (x >> 8) { x >>= 8; r += 8; }
968 if (x >> 4) { x >>= 4; r += 4; } 997 if (x >> 4) { x >>= 4; r += 4; }
969 if (x >> 2) { x >>= 2; r += 2; } 998 if (x >> 2) { x >>= 2; r += 2; }
970 if (x >> 1) { r += 1; } 999 if (x >> 1) { r += 1; }
971 1000
972 return r; 1001 return r;
1002#endif
973 } 1003 }
974 1004
975 ecb_function_ ecb_const int ecb_ld64 (uint64_t x); 1005 ecb_function_ ecb_const int ecb_ld64 (uint64_t x);
976 ecb_function_ ecb_const int ecb_ld64 (uint64_t x) 1006 ecb_function_ ecb_const int ecb_ld64 (uint64_t x)
977 { 1007 {
1008#if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM)
1009 unsigned long r;
1010 _BitScanReverse64 (&r, x);
1011 return (int)r;
1012#else
978 int r = 0; 1013 int r = 0;
979 1014
980 if (x >> 32) { x >>= 32; r += 32; } 1015 if (x >> 32) { x >>= 32; r += 32; }
981 1016
982 return r + ecb_ld32 (x); 1017 return r + ecb_ld32 (x);
1018#endif
983 } 1019 }
984#endif 1020#endif
985 1021
986ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x); 1022ecb_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)); } 1023ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); }
1090#endif 1126#endif
1091 1127
1092/* try to tell the compiler that some condition is definitely true */ 1128/* try to tell the compiler that some condition is definitely true */
1093#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0 1129#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0
1094 1130
1095ecb_inline ecb_const unsigned char ecb_byteorder_helper (void); 1131ecb_inline ecb_const uint32_t ecb_byteorder_helper (void);
1096ecb_inline ecb_const unsigned char 1132ecb_inline ecb_const uint32_t
1097ecb_byteorder_helper (void) 1133ecb_byteorder_helper (void)
1098{ 1134{
1099 /* the union code still generates code under pressure in gcc, */ 1135 /* the union code still generates code under pressure in gcc, */
1100 /* but less than using pointers, and always seems to */ 1136 /* but less than using pointers, and always seems to */
1101 /* successfully return a constant. */ 1137 /* successfully return a constant. */
1102 /* the reason why we have this horrible preprocessor mess */ 1138 /* the reason why we have this horrible preprocessor mess */
1103 /* is to avoid it in all cases, at least on common architectures */ 1139 /* is to avoid it in all cases, at least on common architectures */
1104 /* or when using a recent enough gcc version (>= 4.6) */ 1140 /* 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__ 1141#if (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__) \
1142 || ((__i386 || __i386__ || _M_IX86 || ECB_GCC_AMD64 || ECB_MSVC_AMD64) && !__VOS__)
1143 #define ECB_LITTLE_ENDIAN 1
1108 return 0x44; 1144 return 0x44332211;
1109#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__ 1145#elif (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__) \
1146 || ((__AARCH64EB__ || __MIPSEB__ || __ARMEB__) && !__VOS__)
1147 #define ECB_BIG_ENDIAN 1
1110 return 0x11; 1148 return 0x11223344;
1111#else 1149#else
1112 union 1150 union
1113 { 1151 {
1152 uint8_t c[4];
1114 uint32_t i; 1153 uint32_t u;
1115 uint8_t c;
1116 } u = { 0x11223344 }; 1154 } u = { 0x11, 0x22, 0x33, 0x44 };
1117 return u.c; 1155 return u.u;
1118#endif 1156#endif
1119} 1157}
1120 1158
1121ecb_inline ecb_const ecb_bool ecb_big_endian (void); 1159ecb_inline ecb_const ecb_bool ecb_big_endian (void);
1122ecb_inline ecb_const ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; } 1160ecb_inline ecb_const ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11223344; }
1123ecb_inline ecb_const ecb_bool ecb_little_endian (void); 1161ecb_inline ecb_const ecb_bool ecb_little_endian (void);
1124ecb_inline ecb_const ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; } 1162ecb_inline ecb_const ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44332211; }
1125 1163
1126#if ECB_GCC_VERSION(3,0) || ECB_C99 1164#if ECB_GCC_VERSION(3,0) || ECB_C99
1127 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) 1165 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
1128#else 1166#else
1129 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) 1167 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
1153 return N; 1191 return N;
1154 } 1192 }
1155#else 1193#else
1156 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) 1194 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
1157#endif 1195#endif
1196
1197ecb_function_ ecb_const uint32_t ecb_binary16_to_binary32 (uint32_t x);
1198ecb_function_ ecb_const uint32_t
1199ecb_binary16_to_binary32 (uint32_t x)
1200{
1201 unsigned int s = (x & 0x8000) << (31 - 15);
1202 int e = (x >> 10) & 0x001f;
1203 unsigned int m = x & 0x03ff;
1204
1205 if (ecb_expect_false (e == 31))
1206 /* infinity or NaN */
1207 e = 255 - (127 - 15);
1208 else if (ecb_expect_false (!e))
1209 {
1210 if (ecb_expect_true (!m))
1211 /* zero, handled by code below by forcing e to 0 */
1212 e = 0 - (127 - 15);
1213 else
1214 {
1215 /* subnormal, renormalise */
1216 unsigned int s = 10 - ecb_ld32 (m);
1217
1218 m = (m << s) & 0x3ff; /* mask implicit bit */
1219 e -= s - 1;
1220 }
1221 }
1222
1223 /* e and m now are normalised, or zero, (or inf or nan) */
1224 e += 127 - 15;
1225
1226 return s | (e << 23) | (m << (23 - 10));
1227}
1228
1229ecb_function_ ecb_const uint16_t ecb_binary32_to_binary16 (uint32_t x);
1230ecb_function_ ecb_const uint16_t
1231ecb_binary32_to_binary16 (uint32_t x)
1232{
1233 unsigned int s = (x >> 16) & 0x00008000; /* sign bit, the easy part */
1234 unsigned int e = ((x >> 23) & 0x000000ff) - (127 - 15); /* the desired exponent */
1235 unsigned int m = x & 0x007fffff;
1236
1237 x &= 0x7fffffff;
1238
1239 /* if it's within range of binary16 normals, use fast path */
1240 if (ecb_expect_true (0x38800000 <= x && x <= 0x477fefff))
1241 {
1242 /* mantissa round-to-even */
1243 m += 0x00000fff + ((m >> (23 - 10)) & 1);
1244
1245 /* handle overflow */
1246 if (ecb_expect_false (m >= 0x00800000))
1247 {
1248 m >>= 1;
1249 e += 1;
1250 }
1251
1252 return s | (e << 10) | (m >> (23 - 10));
1253 }
1254
1255 /* handle large numbers and infinity */
1256 if (ecb_expect_true (0x477fefff < x && x <= 0x7f800000))
1257 return s | 0x7c00;
1258
1259 /* handle zero, subnormals and small numbers */
1260 if (ecb_expect_true (x < 0x38800000))
1261 {
1262 /* zero */
1263 if (ecb_expect_true (!x))
1264 return s;
1265
1266 /* handle subnormals */
1267
1268 /* too small, will be zero */
1269 if (e < (14 - 24)) /* might not be sharp, but is good enough */
1270 return s;
1271
1272 m |= 0x00800000; /* make implicit bit explicit */
1273
1274 /* very tricky - we need to round to the nearest e (+10) bit value */
1275 {
1276 unsigned int bits = 14 - e;
1277 unsigned int half = (1 << (bits - 1)) - 1;
1278 unsigned int even = (m >> bits) & 1;
1279
1280 /* if this overflows, we will end up with a normalised number */
1281 m = (m + half + even) >> bits;
1282 }
1283
1284 return s | m;
1285 }
1286
1287 /* handle NaNs, preserve leftmost nan bits, but make sure we don't turn them into infinities */
1288 m >>= 13;
1289
1290 return s | 0x7c00 | m | !m;
1291}
1158 1292
1159/*******************************************************************************/ 1293/*******************************************************************************/
1160/* floating point stuff, can be disabled by defining ECB_NO_LIBM */ 1294/* floating point stuff, can be disabled by defining ECB_NO_LIBM */
1161 1295
1162/* basically, everything uses "ieee pure-endian" floating point numbers */ 1296/* basically, everything uses "ieee pure-endian" floating point numbers */
1205 #else 1339 #else
1206 #define ecb_ldexpf(x,e) (float) ldexp ((double) (x), (e)) 1340 #define ecb_ldexpf(x,e) (float) ldexp ((double) (x), (e))
1207 #define ecb_frexpf(x,e) (float) frexp ((double) (x), (e)) 1341 #define ecb_frexpf(x,e) (float) frexp ((double) (x), (e))
1208 #endif 1342 #endif
1209 1343
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 */ 1344 /* convert a float to ieee single/binary32 */
1228 ecb_function_ ecb_const uint32_t ecb_float_to_binary32 (float x); 1345 ecb_function_ ecb_const uint32_t ecb_float_to_binary32 (float x);
1229 ecb_function_ ecb_const uint32_t 1346 ecb_function_ ecb_const uint32_t
1230 ecb_float_to_binary32 (float x) 1347 ecb_float_to_binary32 (float x)
1231 { 1348 {
1360 1477
1361 r = neg ? -r : r; 1478 r = neg ? -r : r;
1362 #endif 1479 #endif
1363 1480
1364 return r; 1481 return r;
1482 }
1483
1484 /* convert a float to ieee half/binary16 */
1485 ecb_function_ ecb_const uint16_t ecb_float_to_binary16 (float x);
1486 ecb_function_ ecb_const uint16_t
1487 ecb_float_to_binary16 (float x)
1488 {
1489 return ecb_binary32_to_binary16 (ecb_float_to_binary32 (x));
1490 }
1491
1492 /* convert an ieee half/binary16 to float */
1493 ecb_function_ ecb_const float ecb_binary16_to_float (uint16_t x);
1494 ecb_function_ ecb_const float
1495 ecb_binary16_to_float (uint16_t x)
1496 {
1497 return ecb_binary32_to_float (ecb_binary16_to_binary32 (x));
1365 } 1498 }
1366 1499
1367#endif 1500#endif
1368 1501
1369#endif 1502#endif
1394#define inline_size ecb_inline 1527#define inline_size ecb_inline
1395 1528
1396#if EV_FEATURE_CODE 1529#if EV_FEATURE_CODE
1397# define inline_speed ecb_inline 1530# define inline_speed ecb_inline
1398#else 1531#else
1399# define inline_speed static noinline 1532# define inline_speed noinline static
1400#endif 1533#endif
1401 1534
1402#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 1535#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
1403 1536
1404#if EV_MINPRI == EV_MAXPRI 1537#if EV_MINPRI == EV_MAXPRI
1451#else 1584#else
1452 1585
1453#include <float.h> 1586#include <float.h>
1454 1587
1455/* a floor() replacement function, should be independent of ev_tstamp type */ 1588/* a floor() replacement function, should be independent of ev_tstamp type */
1589noinline
1456static ev_tstamp noinline 1590static ev_tstamp
1457ev_floor (ev_tstamp v) 1591ev_floor (ev_tstamp v)
1458{ 1592{
1459 /* the choice of shift factor is not terribly important */ 1593 /* the choice of shift factor is not terribly important */
1460#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ 1594#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
1461 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; 1595 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
1493 1627
1494#ifdef __linux 1628#ifdef __linux
1495# include <sys/utsname.h> 1629# include <sys/utsname.h>
1496#endif 1630#endif
1497 1631
1498static unsigned int noinline ecb_cold 1632noinline ecb_cold
1633static unsigned int
1499ev_linux_version (void) 1634ev_linux_version (void)
1500{ 1635{
1501#ifdef __linux 1636#ifdef __linux
1502 unsigned int v = 0; 1637 unsigned int v = 0;
1503 struct utsname buf; 1638 struct utsname buf;
1532} 1667}
1533 1668
1534/*****************************************************************************/ 1669/*****************************************************************************/
1535 1670
1536#if EV_AVOID_STDIO 1671#if EV_AVOID_STDIO
1537static void noinline ecb_cold 1672noinline ecb_cold
1673static void
1538ev_printerr (const char *msg) 1674ev_printerr (const char *msg)
1539{ 1675{
1540 write (STDERR_FILENO, msg, strlen (msg)); 1676 write (STDERR_FILENO, msg, strlen (msg));
1541} 1677}
1542#endif 1678#endif
1543 1679
1544static void (*syserr_cb)(const char *msg) EV_THROW; 1680static void (*syserr_cb)(const char *msg) EV_THROW;
1545 1681
1546void ecb_cold 1682ecb_cold
1683void
1547ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW 1684ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW
1548{ 1685{
1549 syserr_cb = cb; 1686 syserr_cb = cb;
1550} 1687}
1551 1688
1552static void noinline ecb_cold 1689noinline ecb_cold
1690static void
1553ev_syserr (const char *msg) 1691ev_syserr (const char *msg)
1554{ 1692{
1555 if (!msg) 1693 if (!msg)
1556 msg = "(libev) system error"; 1694 msg = "(libev) system error";
1557 1695
1588 return 0; 1726 return 0;
1589} 1727}
1590 1728
1591static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul; 1729static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul;
1592 1730
1593void ecb_cold 1731ecb_cold
1732void
1594ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW 1733ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW
1595{ 1734{
1596 alloc = cb; 1735 alloc = cb;
1597} 1736}
1598 1737
1767 struct timespec ts; 1906 struct timespec ts;
1768 1907
1769 EV_TS_SET (ts, delay); 1908 EV_TS_SET (ts, delay);
1770 nanosleep (&ts, 0); 1909 nanosleep (&ts, 0);
1771#elif defined _WIN32 1910#elif defined _WIN32
1911 /* maybe this should round up, as ms is very low resolution */
1912 /* compared to select (µs) or nanosleep (ns) */
1772 Sleep ((unsigned long)(delay * 1e3)); 1913 Sleep ((unsigned long)(delay * 1e3));
1773#else 1914#else
1774 struct timeval tv; 1915 struct timeval tv;
1775 1916
1776 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 1917 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
1807 } 1948 }
1808 1949
1809 return ncur; 1950 return ncur;
1810} 1951}
1811 1952
1812static void * noinline ecb_cold 1953noinline ecb_cold
1954static void *
1813array_realloc (int elem, void *base, int *cur, int cnt) 1955array_realloc (int elem, void *base, int *cur, int cnt)
1814{ 1956{
1815 *cur = array_nextsize (elem, *cur, cnt); 1957 *cur = array_nextsize (elem, *cur, cnt);
1816 return ev_realloc (base, elem * *cur); 1958 return ev_realloc (base, elem * *cur);
1817} 1959}
1820 memset ((void *)(base), 0, sizeof (*(base)) * (count)) 1962 memset ((void *)(base), 0, sizeof (*(base)) * (count))
1821 1963
1822#define array_needsize(type,base,cur,cnt,init) \ 1964#define array_needsize(type,base,cur,cnt,init) \
1823 if (expect_false ((cnt) > (cur))) \ 1965 if (expect_false ((cnt) > (cur))) \
1824 { \ 1966 { \
1825 int ecb_unused ocur_ = (cur); \ 1967 ecb_unused int ocur_ = (cur); \
1826 (base) = (type *)array_realloc \ 1968 (base) = (type *)array_realloc \
1827 (sizeof (type), (base), &(cur), (cnt)); \ 1969 (sizeof (type), (base), &(cur), (cnt)); \
1828 init ((base) + (ocur_), (cur) - ocur_); \ 1970 init ((base) + (ocur_), (cur) - ocur_); \
1829 } 1971 }
1830 1972
1842 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 1984 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0
1843 1985
1844/*****************************************************************************/ 1986/*****************************************************************************/
1845 1987
1846/* dummy callback for pending events */ 1988/* dummy callback for pending events */
1847static void noinline 1989noinline
1990static void
1848pendingcb (EV_P_ ev_prepare *w, int revents) 1991pendingcb (EV_P_ ev_prepare *w, int revents)
1849{ 1992{
1850} 1993}
1851 1994
1852void noinline 1995noinline
1996void
1853ev_feed_event (EV_P_ void *w, int revents) EV_THROW 1997ev_feed_event (EV_P_ void *w, int revents) EV_THROW
1854{ 1998{
1855 W w_ = (W)w; 1999 W w_ = (W)w;
1856 int pri = ABSPRI (w_); 2000 int pri = ABSPRI (w_);
1857 2001
1987 2131
1988 fdchangecnt = 0; 2132 fdchangecnt = 0;
1989} 2133}
1990 2134
1991/* something about the given fd changed */ 2135/* something about the given fd changed */
1992inline_size void 2136inline_size
2137void
1993fd_change (EV_P_ int fd, int flags) 2138fd_change (EV_P_ int fd, int flags)
1994{ 2139{
1995 unsigned char reify = anfds [fd].reify; 2140 unsigned char reify = anfds [fd].reify;
1996 anfds [fd].reify |= flags; 2141 anfds [fd].reify |= flags;
1997 2142
2002 fdchanges [fdchangecnt - 1] = fd; 2147 fdchanges [fdchangecnt - 1] = fd;
2003 } 2148 }
2004} 2149}
2005 2150
2006/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ 2151/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
2007inline_speed void ecb_cold 2152inline_speed ecb_cold void
2008fd_kill (EV_P_ int fd) 2153fd_kill (EV_P_ int fd)
2009{ 2154{
2010 ev_io *w; 2155 ev_io *w;
2011 2156
2012 while ((w = (ev_io *)anfds [fd].head)) 2157 while ((w = (ev_io *)anfds [fd].head))
2015 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 2160 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
2016 } 2161 }
2017} 2162}
2018 2163
2019/* check whether the given fd is actually valid, for error recovery */ 2164/* check whether the given fd is actually valid, for error recovery */
2020inline_size int ecb_cold 2165inline_size ecb_cold int
2021fd_valid (int fd) 2166fd_valid (int fd)
2022{ 2167{
2023#ifdef _WIN32 2168#ifdef _WIN32
2024 return EV_FD_TO_WIN32_HANDLE (fd) != -1; 2169 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
2025#else 2170#else
2026 return fcntl (fd, F_GETFD) != -1; 2171 return fcntl (fd, F_GETFD) != -1;
2027#endif 2172#endif
2028} 2173}
2029 2174
2030/* called on EBADF to verify fds */ 2175/* called on EBADF to verify fds */
2031static void noinline ecb_cold 2176noinline ecb_cold
2177static void
2032fd_ebadf (EV_P) 2178fd_ebadf (EV_P)
2033{ 2179{
2034 int fd; 2180 int fd;
2035 2181
2036 for (fd = 0; fd < anfdmax; ++fd) 2182 for (fd = 0; fd < anfdmax; ++fd)
2038 if (!fd_valid (fd) && errno == EBADF) 2184 if (!fd_valid (fd) && errno == EBADF)
2039 fd_kill (EV_A_ fd); 2185 fd_kill (EV_A_ fd);
2040} 2186}
2041 2187
2042/* called on ENOMEM in select/poll to kill some fds and retry */ 2188/* called on ENOMEM in select/poll to kill some fds and retry */
2043static void noinline ecb_cold 2189noinline ecb_cold
2190static void
2044fd_enomem (EV_P) 2191fd_enomem (EV_P)
2045{ 2192{
2046 int fd; 2193 int fd;
2047 2194
2048 for (fd = anfdmax; fd--; ) 2195 for (fd = anfdmax; fd--; )
2052 break; 2199 break;
2053 } 2200 }
2054} 2201}
2055 2202
2056/* usually called after fork if backend needs to re-arm all fds from scratch */ 2203/* usually called after fork if backend needs to re-arm all fds from scratch */
2057static void noinline 2204noinline
2205static void
2058fd_rearm_all (EV_P) 2206fd_rearm_all (EV_P)
2059{ 2207{
2060 int fd; 2208 int fd;
2061 2209
2062 for (fd = 0; fd < anfdmax; ++fd) 2210 for (fd = 0; fd < anfdmax; ++fd)
2243 2391
2244/*****************************************************************************/ 2392/*****************************************************************************/
2245 2393
2246#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 2394#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2247 2395
2248static void noinline ecb_cold 2396noinline ecb_cold
2397static void
2249evpipe_init (EV_P) 2398evpipe_init (EV_P)
2250{ 2399{
2251 if (!ev_is_active (&pipe_w)) 2400 if (!ev_is_active (&pipe_w))
2252 { 2401 {
2253 int fds [2]; 2402 int fds [2];
2431#endif 2580#endif
2432 2581
2433 ev_feed_signal (signum); 2582 ev_feed_signal (signum);
2434} 2583}
2435 2584
2436void noinline 2585noinline
2586void
2437ev_feed_signal_event (EV_P_ int signum) EV_THROW 2587ev_feed_signal_event (EV_P_ int signum) EV_THROW
2438{ 2588{
2439 WL w; 2589 WL w;
2440 2590
2441 if (expect_false (signum <= 0 || signum >= EV_NSIG)) 2591 if (expect_false (signum <= 0 || signum >= EV_NSIG))
2558#endif 2708#endif
2559#if EV_USE_SELECT 2709#if EV_USE_SELECT
2560# include "ev_select.c" 2710# include "ev_select.c"
2561#endif 2711#endif
2562 2712
2563int ecb_cold 2713ecb_cold int
2564ev_version_major (void) EV_THROW 2714ev_version_major (void) EV_THROW
2565{ 2715{
2566 return EV_VERSION_MAJOR; 2716 return EV_VERSION_MAJOR;
2567} 2717}
2568 2718
2569int ecb_cold 2719ecb_cold int
2570ev_version_minor (void) EV_THROW 2720ev_version_minor (void) EV_THROW
2571{ 2721{
2572 return EV_VERSION_MINOR; 2722 return EV_VERSION_MINOR;
2573} 2723}
2574 2724
2575/* return true if we are running with elevated privileges and should ignore env variables */ 2725/* return true if we are running with elevated privileges and should ignore env variables */
2576int inline_size ecb_cold 2726inline_size ecb_cold int
2577enable_secure (void) 2727enable_secure (void)
2578{ 2728{
2579#ifdef _WIN32 2729#ifdef _WIN32
2580 return 0; 2730 return 0;
2581#else 2731#else
2582 return getuid () != geteuid () 2732 return getuid () != geteuid ()
2583 || getgid () != getegid (); 2733 || getgid () != getegid ();
2584#endif 2734#endif
2585} 2735}
2586 2736
2587unsigned int ecb_cold 2737ecb_cold
2738unsigned int
2588ev_supported_backends (void) EV_THROW 2739ev_supported_backends (void) EV_THROW
2589{ 2740{
2590 unsigned int flags = 0; 2741 unsigned int flags = 0;
2591 2742
2592 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2743 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
2596 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; 2747 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT;
2597 2748
2598 return flags; 2749 return flags;
2599} 2750}
2600 2751
2601unsigned int ecb_cold 2752ecb_cold
2753unsigned int
2602ev_recommended_backends (void) EV_THROW 2754ev_recommended_backends (void) EV_THROW
2603{ 2755{
2604 unsigned int flags = ev_supported_backends (); 2756 unsigned int flags = ev_supported_backends ();
2605 2757
2606#ifndef __NetBSD__ 2758#ifndef __NetBSD__
2618#endif 2770#endif
2619 2771
2620 return flags; 2772 return flags;
2621} 2773}
2622 2774
2623unsigned int ecb_cold 2775ecb_cold
2776unsigned int
2624ev_embeddable_backends (void) EV_THROW 2777ev_embeddable_backends (void) EV_THROW
2625{ 2778{
2626 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2779 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2627 2780
2628 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ 2781 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
2688 acquire_cb = acquire; 2841 acquire_cb = acquire;
2689} 2842}
2690#endif 2843#endif
2691 2844
2692/* initialise a loop structure, must be zero-initialised */ 2845/* initialise a loop structure, must be zero-initialised */
2693static void noinline ecb_cold 2846noinline ecb_cold
2847static void
2694loop_init (EV_P_ unsigned int flags) EV_THROW 2848loop_init (EV_P_ unsigned int flags) EV_THROW
2695{ 2849{
2696 if (!backend) 2850 if (!backend)
2697 { 2851 {
2698 origflags = flags; 2852 origflags = flags;
2785#endif 2939#endif
2786 } 2940 }
2787} 2941}
2788 2942
2789/* free up a loop structure */ 2943/* free up a loop structure */
2790void ecb_cold 2944ecb_cold
2945void
2791ev_loop_destroy (EV_P) 2946ev_loop_destroy (EV_P)
2792{ 2947{
2793 int i; 2948 int i;
2794 2949
2795#if EV_MULTIPLICITY 2950#if EV_MULTIPLICITY
2937 postfork = 0; 3092 postfork = 0;
2938} 3093}
2939 3094
2940#if EV_MULTIPLICITY 3095#if EV_MULTIPLICITY
2941 3096
3097ecb_cold
2942struct ev_loop * ecb_cold 3098struct ev_loop *
2943ev_loop_new (unsigned int flags) EV_THROW 3099ev_loop_new (unsigned int flags) EV_THROW
2944{ 3100{
2945 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 3101 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
2946 3102
2947 memset (EV_A, 0, sizeof (struct ev_loop)); 3103 memset (EV_A, 0, sizeof (struct ev_loop));
2955} 3111}
2956 3112
2957#endif /* multiplicity */ 3113#endif /* multiplicity */
2958 3114
2959#if EV_VERIFY 3115#if EV_VERIFY
2960static void noinline ecb_cold 3116noinline ecb_cold
3117static void
2961verify_watcher (EV_P_ W w) 3118verify_watcher (EV_P_ W w)
2962{ 3119{
2963 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); 3120 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
2964 3121
2965 if (w->pending) 3122 if (w->pending)
2966 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); 3123 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
2967} 3124}
2968 3125
2969static void noinline ecb_cold 3126noinline ecb_cold
3127static void
2970verify_heap (EV_P_ ANHE *heap, int N) 3128verify_heap (EV_P_ ANHE *heap, int N)
2971{ 3129{
2972 int i; 3130 int i;
2973 3131
2974 for (i = HEAP0; i < N + HEAP0; ++i) 3132 for (i = HEAP0; i < N + HEAP0; ++i)
2979 3137
2980 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 3138 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
2981 } 3139 }
2982} 3140}
2983 3141
2984static void noinline ecb_cold 3142noinline ecb_cold
3143static void
2985array_verify (EV_P_ W *ws, int cnt) 3144array_verify (EV_P_ W *ws, int cnt)
2986{ 3145{
2987 while (cnt--) 3146 while (cnt--)
2988 { 3147 {
2989 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); 3148 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
3078#endif 3237#endif
3079} 3238}
3080#endif 3239#endif
3081 3240
3082#if EV_MULTIPLICITY 3241#if EV_MULTIPLICITY
3242ecb_cold
3083struct ev_loop * ecb_cold 3243struct ev_loop *
3084#else 3244#else
3085int 3245int
3086#endif 3246#endif
3087ev_default_loop (unsigned int flags) EV_THROW 3247ev_default_loop (unsigned int flags) EV_THROW
3088{ 3248{
3136 count += pendingcnt [pri]; 3296 count += pendingcnt [pri];
3137 3297
3138 return count; 3298 return count;
3139} 3299}
3140 3300
3141void noinline 3301noinline
3302void
3142ev_invoke_pending (EV_P) 3303ev_invoke_pending (EV_P)
3143{ 3304{
3144 pendingpri = NUMPRI; 3305 pendingpri = NUMPRI;
3145 3306
3146 while (pendingpri) /* pendingpri possibly gets modified in the inner loop */ 3307 while (pendingpri) /* pendingpri possibly gets modified in the inner loop */
3221 } 3382 }
3222} 3383}
3223 3384
3224#if EV_PERIODIC_ENABLE 3385#if EV_PERIODIC_ENABLE
3225 3386
3226static void noinline 3387noinline
3388static void
3227periodic_recalc (EV_P_ ev_periodic *w) 3389periodic_recalc (EV_P_ ev_periodic *w)
3228{ 3390{
3229 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; 3391 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); 3392 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);
3231 3393
3289 } 3451 }
3290} 3452}
3291 3453
3292/* simply recalculate all periodics */ 3454/* simply recalculate all periodics */
3293/* TODO: maybe ensure that at least one event happens when jumping forward? */ 3455/* TODO: maybe ensure that at least one event happens when jumping forward? */
3294static void noinline ecb_cold 3456noinline ecb_cold
3457static void
3295periodics_reschedule (EV_P) 3458periodics_reschedule (EV_P)
3296{ 3459{
3297 int i; 3460 int i;
3298 3461
3299 /* adjust periodics after time jump */ 3462 /* adjust periodics after time jump */
3312 reheap (periodics, periodiccnt); 3475 reheap (periodics, periodiccnt);
3313} 3476}
3314#endif 3477#endif
3315 3478
3316/* adjust all timers by a given offset */ 3479/* adjust all timers by a given offset */
3317static void noinline ecb_cold 3480noinline ecb_cold
3481static void
3318timers_reschedule (EV_P_ ev_tstamp adjust) 3482timers_reschedule (EV_P_ ev_tstamp adjust)
3319{ 3483{
3320 int i; 3484 int i;
3321 3485
3322 for (i = 0; i < timercnt; ++i) 3486 for (i = 0; i < timercnt; ++i)
3690 w->active = 0; 3854 w->active = 0;
3691} 3855}
3692 3856
3693/*****************************************************************************/ 3857/*****************************************************************************/
3694 3858
3695void noinline 3859noinline
3860void
3696ev_io_start (EV_P_ ev_io *w) EV_THROW 3861ev_io_start (EV_P_ ev_io *w) EV_THROW
3697{ 3862{
3698 int fd = w->fd; 3863 int fd = w->fd;
3699 3864
3700 if (expect_false (ev_is_active (w))) 3865 if (expect_false (ev_is_active (w)))
3716 w->events &= ~EV__IOFDSET; 3881 w->events &= ~EV__IOFDSET;
3717 3882
3718 EV_FREQUENT_CHECK; 3883 EV_FREQUENT_CHECK;
3719} 3884}
3720 3885
3721void noinline 3886noinline
3887void
3722ev_io_stop (EV_P_ ev_io *w) EV_THROW 3888ev_io_stop (EV_P_ ev_io *w) EV_THROW
3723{ 3889{
3724 clear_pending (EV_A_ (W)w); 3890 clear_pending (EV_A_ (W)w);
3725 if (expect_false (!ev_is_active (w))) 3891 if (expect_false (!ev_is_active (w)))
3726 return; 3892 return;
3735 fd_change (EV_A_ w->fd, EV_ANFD_REIFY); 3901 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
3736 3902
3737 EV_FREQUENT_CHECK; 3903 EV_FREQUENT_CHECK;
3738} 3904}
3739 3905
3740void noinline 3906noinline
3907void
3741ev_timer_start (EV_P_ ev_timer *w) EV_THROW 3908ev_timer_start (EV_P_ ev_timer *w) EV_THROW
3742{ 3909{
3743 if (expect_false (ev_is_active (w))) 3910 if (expect_false (ev_is_active (w)))
3744 return; 3911 return;
3745 3912
3759 EV_FREQUENT_CHECK; 3926 EV_FREQUENT_CHECK;
3760 3927
3761 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 3928 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
3762} 3929}
3763 3930
3764void noinline 3931noinline
3932void
3765ev_timer_stop (EV_P_ ev_timer *w) EV_THROW 3933ev_timer_stop (EV_P_ ev_timer *w) EV_THROW
3766{ 3934{
3767 clear_pending (EV_A_ (W)w); 3935 clear_pending (EV_A_ (W)w);
3768 if (expect_false (!ev_is_active (w))) 3936 if (expect_false (!ev_is_active (w)))
3769 return; 3937 return;
3789 ev_stop (EV_A_ (W)w); 3957 ev_stop (EV_A_ (W)w);
3790 3958
3791 EV_FREQUENT_CHECK; 3959 EV_FREQUENT_CHECK;
3792} 3960}
3793 3961
3794void noinline 3962noinline
3963void
3795ev_timer_again (EV_P_ ev_timer *w) EV_THROW 3964ev_timer_again (EV_P_ ev_timer *w) EV_THROW
3796{ 3965{
3797 EV_FREQUENT_CHECK; 3966 EV_FREQUENT_CHECK;
3798 3967
3799 clear_pending (EV_A_ (W)w); 3968 clear_pending (EV_A_ (W)w);
3823{ 3992{
3824 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 3993 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
3825} 3994}
3826 3995
3827#if EV_PERIODIC_ENABLE 3996#if EV_PERIODIC_ENABLE
3828void noinline 3997noinline
3998void
3829ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW 3999ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW
3830{ 4000{
3831 if (expect_false (ev_is_active (w))) 4001 if (expect_false (ev_is_active (w)))
3832 return; 4002 return;
3833 4003
3853 EV_FREQUENT_CHECK; 4023 EV_FREQUENT_CHECK;
3854 4024
3855 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 4025 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
3856} 4026}
3857 4027
3858void noinline 4028noinline
4029void
3859ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW 4030ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW
3860{ 4031{
3861 clear_pending (EV_A_ (W)w); 4032 clear_pending (EV_A_ (W)w);
3862 if (expect_false (!ev_is_active (w))) 4033 if (expect_false (!ev_is_active (w)))
3863 return; 4034 return;
3881 ev_stop (EV_A_ (W)w); 4052 ev_stop (EV_A_ (W)w);
3882 4053
3883 EV_FREQUENT_CHECK; 4054 EV_FREQUENT_CHECK;
3884} 4055}
3885 4056
3886void noinline 4057noinline
4058void
3887ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW 4059ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW
3888{ 4060{
3889 /* TODO: use adjustheap and recalculation */ 4061 /* TODO: use adjustheap and recalculation */
3890 ev_periodic_stop (EV_A_ w); 4062 ev_periodic_stop (EV_A_ w);
3891 ev_periodic_start (EV_A_ w); 4063 ev_periodic_start (EV_A_ w);
3896# define SA_RESTART 0 4068# define SA_RESTART 0
3897#endif 4069#endif
3898 4070
3899#if EV_SIGNAL_ENABLE 4071#if EV_SIGNAL_ENABLE
3900 4072
3901void noinline 4073noinline
4074void
3902ev_signal_start (EV_P_ ev_signal *w) EV_THROW 4075ev_signal_start (EV_P_ ev_signal *w) EV_THROW
3903{ 4076{
3904 if (expect_false (ev_is_active (w))) 4077 if (expect_false (ev_is_active (w)))
3905 return; 4078 return;
3906 4079
3978 } 4151 }
3979 4152
3980 EV_FREQUENT_CHECK; 4153 EV_FREQUENT_CHECK;
3981} 4154}
3982 4155
3983void noinline 4156noinline
4157void
3984ev_signal_stop (EV_P_ ev_signal *w) EV_THROW 4158ev_signal_stop (EV_P_ ev_signal *w) EV_THROW
3985{ 4159{
3986 clear_pending (EV_A_ (W)w); 4160 clear_pending (EV_A_ (W)w);
3987 if (expect_false (!ev_is_active (w))) 4161 if (expect_false (!ev_is_active (w)))
3988 return; 4162 return;
4064 4238
4065#define DEF_STAT_INTERVAL 5.0074891 4239#define DEF_STAT_INTERVAL 5.0074891
4066#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ 4240#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */
4067#define MIN_STAT_INTERVAL 0.1074891 4241#define MIN_STAT_INTERVAL 0.1074891
4068 4242
4069static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); 4243noinline static void stat_timer_cb (EV_P_ ev_timer *w_, int revents);
4070 4244
4071#if EV_USE_INOTIFY 4245#if EV_USE_INOTIFY
4072 4246
4073/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ 4247/* 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) 4248# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
4075 4249
4076static void noinline 4250noinline
4251static void
4077infy_add (EV_P_ ev_stat *w) 4252infy_add (EV_P_ ev_stat *w)
4078{ 4253{
4079 w->wd = inotify_add_watch (fs_fd, w->path, 4254 w->wd = inotify_add_watch (fs_fd, w->path,
4080 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY 4255 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY
4081 | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO 4256 | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO
4145 if (ev_is_active (&w->timer)) ev_ref (EV_A); 4320 if (ev_is_active (&w->timer)) ev_ref (EV_A);
4146 ev_timer_again (EV_A_ &w->timer); 4321 ev_timer_again (EV_A_ &w->timer);
4147 if (ev_is_active (&w->timer)) ev_unref (EV_A); 4322 if (ev_is_active (&w->timer)) ev_unref (EV_A);
4148} 4323}
4149 4324
4150static void noinline 4325noinline
4326static void
4151infy_del (EV_P_ ev_stat *w) 4327infy_del (EV_P_ ev_stat *w)
4152{ 4328{
4153 int slot; 4329 int slot;
4154 int wd = w->wd; 4330 int wd = w->wd;
4155 4331
4162 4338
4163 /* remove this watcher, if others are watching it, they will rearm */ 4339 /* remove this watcher, if others are watching it, they will rearm */
4164 inotify_rm_watch (fs_fd, wd); 4340 inotify_rm_watch (fs_fd, wd);
4165} 4341}
4166 4342
4167static void noinline 4343noinline
4344static void
4168infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 4345infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
4169{ 4346{
4170 if (slot < 0) 4347 if (slot < 0)
4171 /* overflow, need to check for all hash slots */ 4348 /* overflow, need to check for all hash slots */
4172 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) 4349 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
4208 infy_wd (EV_A_ ev->wd, ev->wd, ev); 4385 infy_wd (EV_A_ ev->wd, ev->wd, ev);
4209 ofs += sizeof (struct inotify_event) + ev->len; 4386 ofs += sizeof (struct inotify_event) + ev->len;
4210 } 4387 }
4211} 4388}
4212 4389
4213inline_size void ecb_cold 4390inline_size ecb_cold
4391void
4214ev_check_2625 (EV_P) 4392ev_check_2625 (EV_P)
4215{ 4393{
4216 /* kernels < 2.6.25 are borked 4394 /* kernels < 2.6.25 are borked
4217 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html 4395 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
4218 */ 4396 */
4316 w->attr.st_nlink = 0; 4494 w->attr.st_nlink = 0;
4317 else if (!w->attr.st_nlink) 4495 else if (!w->attr.st_nlink)
4318 w->attr.st_nlink = 1; 4496 w->attr.st_nlink = 1;
4319} 4497}
4320 4498
4321static void noinline 4499noinline
4500static void
4322stat_timer_cb (EV_P_ ev_timer *w_, int revents) 4501stat_timer_cb (EV_P_ ev_timer *w_, int revents)
4323{ 4502{
4324 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); 4503 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
4325 4504
4326 ev_statdata prev = w->attr; 4505 ev_statdata prev = w->attr;
4536 EV_FREQUENT_CHECK; 4715 EV_FREQUENT_CHECK;
4537} 4716}
4538#endif 4717#endif
4539 4718
4540#if EV_EMBED_ENABLE 4719#if EV_EMBED_ENABLE
4541void noinline 4720noinline
4721void
4542ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW 4722ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW
4543{ 4723{
4544 ev_run (w->other, EVRUN_NOWAIT); 4724 ev_run (w->other, EVRUN_NOWAIT);
4545} 4725}
4546 4726
4843} 5023}
4844 5024
4845/*****************************************************************************/ 5025/*****************************************************************************/
4846 5026
4847#if EV_WALK_ENABLE 5027#if EV_WALK_ENABLE
4848void ecb_cold 5028ecb_cold
5029void
4849ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW 5030ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW
4850{ 5031{
4851 int i, j; 5032 int i, j;
4852 ev_watcher_list *wl, *wn; 5033 ev_watcher_list *wl, *wn;
4853 5034

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