[ViewVC] Diff of: cvs/libev/ev.c

Comparing libev/ev.c (file contents):
Revision 1.474 by root, Wed Feb 11 19:20:21 2015 UTC vs.
Revision 1.484 by root, Tue Jul 31 05:40:58 2018 UTC

 #  define EV_USE_EVENTFD 0
 # endif
 #endif
+/* OS X, in its infinite idiocy, actually HARDCODES
+ * a limit of 1024 into their select. Where people have brains,
+ * OS X engineers apparently have a vacuum. Or maybe they were
+ * ordered to have a vacuum, or they do anything for money.
+ * This might help. Or not.
+ * Note that this must be defined early, as other include files
+ * will rely on this define as well.
+ */
+#define _DARWIN_UNLIMITED_SELECT 1
 #include <stdlib.h>
 #include <string.h>
 #include <fcntl.h>
 #include <stddef.h>
 # ifndef EV_SELECT_IS_WINSOCKET
 #  define EV_SELECT_IS_WINSOCKET 1
 # endif
 # undef EV_AVOID_STDIO
 #endif
-/* OS X, in its infinite idiocy, actually HARDCODES
- * a limit of 1024 into their select. Where people have brains,
- * OS X engineers apparently have a vacuum. Or maybe they were
- * ordered to have a vacuum, or they do anything for money.
- * This might help. Or not.
- */
-#define _DARWIN_UNLIMITED_SELECT 1
 /* this block tries to deduce configuration from header-defined symbols and defaults */
 /* try to deduce the maximum number of signals on this platform */
 #if defined EV_NSIG
 #ifndef EV_HEAP_CACHE_AT
 # define EV_HEAP_CACHE_AT EV_FEATURE_DATA
 #endif
-#ifdef ANDROID
+#ifdef __ANDROID__
 /* supposedly, android doesn't typedef fd_mask */
 # undef EV_USE_SELECT
 # define EV_USE_SELECT 0
 /* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */
 # undef EV_USE_CLOCK_SYSCALL
 #ifndef ECB_H
 #define ECB_H
 /* 16 bits major, 16 bits minor */
-#define ECB_VERSION 0x00010004
+#define ECB_VERSION 0x00010005
 #ifdef _WIN32
   typedef   signed char   int8_t;
   typedef unsigned char  uint8_t;
   typedef   signed short  int16_t;
     typedef uint32_t uintptr_t;
     typedef  int32_t  intptr_t;
   #endif
 #else
   #include <inttypes.h>
-  #if UINTMAX_MAX > 0xffffffffU
+  #if (defined INTPTR_MAX ? INTPTR_MAX : ULONG_MAX) > 0xffffffffU
     #define ECB_PTRSIZE 8
   #else
     #define ECB_PTRSIZE 4
   #endif
 #endif
+#define ECB_GCC_AMD64 (__amd64 || __amd64__ || __x86_64 || __x86_64__)
+#define ECB_MSVC_AMD64 (_M_AMD64 || _M_X64)
 /* work around x32 idiocy by defining proper macros */
-#if __amd64 || __x86_64 || _M_AMD64 || _M_X64
+#if ECB_GCC_AMD64 || ECB_MSVC_AMD64
   #if _ILP32
     #define ECB_AMD64_X32 1
   #else
     #define ECB_AMD64 1
   #endif
 #if ECB_NO_SMP
   #define ECB_MEMORY_FENCE do { } while (0)
 #endif
+/* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/compiler_ref/compiler_builtins.html */
+#if __xlC__ && ECB_CPP
+  #include <builtins.h>
+#endif
+#if 1400 <= _MSC_VER
+  #include <intrin.h> /* fence functions _ReadBarrier, also bit search functions _BitScanReverse */
+#endif
 #ifndef ECB_MEMORY_FENCE
   #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
     #if __i386 || __i386__
       #define ECB_MEMORY_FENCE         __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")
       #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ (""                        : : : "memory")
       #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
-    #elif __amd64 || __amd64__ || __x86_64 || __x86_64__
+    #elif ECB_GCC_AMD64
       #define ECB_MEMORY_FENCE         __asm__ __volatile__ ("mfence"   : : : "memory")
       #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ (""         : : : "memory")
       #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
     #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
       #define ECB_MEMORY_FENCE         __asm__ __volatile__ ("sync"     : : : "memory")
+    #elif defined __ARM_ARCH_2__ \
+      || defined __ARM_ARCH_3__  || defined __ARM_ARCH_3M__  \
+      || defined __ARM_ARCH_4__  || defined __ARM_ARCH_4T__  \
+      || defined __ARM_ARCH_5__  || defined __ARM_ARCH_5E__  \
+      || defined __ARM_ARCH_5T__ || defined __ARM_ARCH_5TE__ \
+      || defined __ARM_ARCH_5TEJ__
+      /* should not need any, unless running old code on newer cpu - arm doesn't support that */
     #elif defined __ARM_ARCH_6__  || defined __ARM_ARCH_6J__  \
-       || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__
+       || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ \
+       || defined __ARM_ARCH_6T2__
       #define ECB_MEMORY_FENCE         __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory")
     #elif defined __ARM_ARCH_7__  || defined __ARM_ARCH_7A__  \
-       || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__
+       || defined __ARM_ARCH_7R__ || defined __ARM_ARCH_7M__
       #define ECB_MEMORY_FENCE         __asm__ __volatile__ ("dmb"      : : : "memory")
     #elif __aarch64__
       #define ECB_MEMORY_FENCE         __asm__ __volatile__ ("dmb ish"  : : : "memory")
-    #elif (__sparc || __sparc__) && !__sparcv8
+    #elif (__sparc || __sparc__) && !(__sparc_v8__ || defined __sparcv8)
       #define ECB_MEMORY_FENCE         __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory")
       #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad"                            : : : "memory")
       #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore             | #StoreStore")
     #elif defined __s390__ || defined __s390x__
       #define ECB_MEMORY_FENCE         __asm__ __volatile__ ("bcr 15,0" : : : "memory")
 #define ECB_CONCAT_(a, b) a ## b
 #define ECB_CONCAT(a, b) ECB_CONCAT_(a, b)
 #define ECB_STRINGIFY_(a) # a
 #define ECB_STRINGIFY(a) ECB_STRINGIFY_(a)
+#define ECB_STRINGIFY_EXPR(expr) ((expr), ECB_STRINGIFY_ (expr))
 #define ecb_function_ ecb_inline
 #if ECB_GCC_VERSION(3,1) || ECB_CLANG_VERSION(2,8)
   #define ecb_attribute(attrlist)        __attribute__ (attrlist)
   #define ecb_deprecated __declspec (deprecated)
 #else
   #define ecb_deprecated ecb_attribute ((__deprecated__))
 #endif
+#if _MSC_VER >= 1500
+  #define ecb_deprecated_message(msg) __declspec (deprecated (msg))
+#elif ECB_GCC_VERSION(4,5)
+  #define ecb_deprecated_message(msg) ecb_attribute ((__deprecated__ (msg))
+#else
+  #define ecb_deprecated_message(msg) ecb_deprecated
+#endif
+#if _MSC_VER >= 1400
+  #define ecb_noinline __declspec (noinline)
+#else
-#define ecb_noinline   ecb_attribute ((__noinline__))
+  #define ecb_noinline ecb_attribute ((__noinline__))
+#endif
 #define ecb_unused     ecb_attribute ((__unused__))
 #define ecb_const      ecb_attribute ((__const__))
 #define ecb_pure       ecb_attribute ((__pure__))
-/* TODO http://msdn.microsoft.com/en-us/library/k6ktzx3s.aspx __declspec(noreturn) */
 #if ECB_C11 || __IBMC_NORETURN
-  /* http://pic.dhe.ibm.com/infocenter/compbg/v121v141/topic/com.ibm.xlcpp121.bg.doc/language_ref/noreturn.html */
+  /* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/language_ref/noreturn.html */
   #define ecb_noreturn   _Noreturn
+#elif ECB_CPP11
+  #define ecb_noreturn   [[noreturn]]
+#elif _MSC_VER >= 1200
+  /* http://msdn.microsoft.com/en-us/library/k6ktzx3s.aspx */
+  #define ecb_noreturn   __declspec (noreturn)
 #else
   #define ecb_noreturn   ecb_attribute ((__noreturn__))
 #endif
 #if ECB_GCC_VERSION(4,3)
 #else
   ecb_function_ ecb_const int ecb_ctz32 (uint32_t x);
   ecb_function_ ecb_const int
   ecb_ctz32 (uint32_t x)
   {
+#if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM)
+    unsigned long r;
+    _BitScanForward (&r, x);
+    return (int)r;
+#else
     int r = 0;
     x &= ~x + 1; /* this isolates the lowest bit */
 #if ECB_branchless_on_i386
     if (x & 0xff00ff00) r +=  8;
     if (x & 0xffff0000) r += 16;
 #endif
     return r;
+#endif
   }
   ecb_function_ ecb_const int ecb_ctz64 (uint64_t x);
   ecb_function_ ecb_const int
   ecb_ctz64 (uint64_t x)
   {
+#if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM)
+    unsigned long r;
+    _BitScanForward64 (&r, x);
+    return (int)r;
+#else
-    int shift = x & 0xffffffffU ? 0 : 32;
+    int shift = x & 0xffffffff ? 0 : 32;
     return ecb_ctz32 (x >> shift) + shift;
+#endif
   }
   ecb_function_ ecb_const int ecb_popcount32 (uint32_t x);
   ecb_function_ ecb_const int
   ecb_popcount32 (uint32_t x)
   }
   ecb_function_ ecb_const int ecb_ld32 (uint32_t x);
   ecb_function_ ecb_const int ecb_ld32 (uint32_t x)
   {
+#if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM)
+    unsigned long r;
+    _BitScanReverse (&r, x);
+    return (int)r;
+#else
     int r = 0;
     if (x >> 16) { x >>= 16; r += 16; }
     if (x >>  8) { x >>=  8; r +=  8; }
     if (x >>  4) { x >>=  4; r +=  4; }
     if (x >>  2) { x >>=  2; r +=  2; }
     if (x >>  1) {           r +=  1; }
     return r;
+#endif
   }
   ecb_function_ ecb_const int ecb_ld64 (uint64_t x);
   ecb_function_ ecb_const int ecb_ld64 (uint64_t x)
   {
+#if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM)
+    unsigned long r;
+    _BitScanReverse64 (&r, x);
+    return (int)r;
+#else
     int r = 0;
     if (x >> 32) { x >>= 32; r += 32; }
     return r + ecb_ld32 (x);
+#endif
   }
 #endif
 ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x);
 ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); }
 ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); }
 ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); }
 ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); }
 #if ECB_GCC_VERSION(4,3) || (ECB_CLANG_BUILTIN(__builtin_bswap32) && ECB_CLANG_BUILTIN(__builtin_bswap64))
+  #if ECB_GCC_VERSION(4,8) || ECB_CLANG_BUILTIN(__builtin_bswap16)
+  #define ecb_bswap16(x)  __builtin_bswap16 (x)
+  #else
   #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
+  #endif
   #define ecb_bswap32(x)  __builtin_bswap32 (x)
   #define ecb_bswap64(x)  __builtin_bswap64 (x)
+#elif _MSC_VER
+  #include <stdlib.h>
+  #define ecb_bswap16(x) ((uint16_t)_byteswap_ushort ((uint16_t)(x)))
+  #define ecb_bswap32(x) ((uint32_t)_byteswap_ulong  ((uint32_t)(x)))
+  #define ecb_bswap64(x) ((uint64_t)_byteswap_uint64 ((uint64_t)(x)))
 #else
   ecb_function_ ecb_const uint16_t ecb_bswap16 (uint16_t x);
   ecb_function_ ecb_const uint16_t
   ecb_bswap16 (uint16_t x)
   {
 #endif
 /* try to tell the compiler that some condition is definitely true */
 #define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0
-ecb_inline ecb_const unsigned char ecb_byteorder_helper (void);
+ecb_inline ecb_const uint32_t ecb_byteorder_helper (void);
-ecb_inline ecb_const unsigned char
+ecb_inline ecb_const uint32_t
 ecb_byteorder_helper (void)
 {
   /* the union code still generates code under pressure in gcc, */
   /* but less than using pointers, and always seems to */
   /* successfully return a constant. */
   /* the reason why we have this horrible preprocessor mess */
   /* is to avoid it in all cases, at least on common architectures */
   /* or when using a recent enough gcc version (>= 4.6) */
-#if __i386 || __i386__ || _M_X86 || __amd64 || __amd64__ || _M_X64
-  return 0x44;
-#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
+#if (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__) \
+    || ((__i386 || __i386__ || _M_IX86 || ECB_GCC_AMD64 || ECB_MSVC_AMD64) && !__VOS__)
+  #define ECB_LITTLE_ENDIAN 1
-  return 0x44;
+  return 0x44332211;
-#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
+#elif (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__) \
+      || ((__AARCH64EB__ || __MIPSEB__ || __ARMEB__) && !__VOS__)
+  #define ECB_BIG_ENDIAN 1
-  return 0x11;
+  return 0x11223344;
 #else
   union
   {
+    uint8_t c[4];
-    uint32_t i;
+    uint32_t u;
-    uint8_t c;
-  } u = { 0x11223344 };
+  } u = { 0x11, 0x22, 0x33, 0x44 };
-  return u.c;
+  return u.u;
 #endif
 }
 ecb_inline ecb_const ecb_bool ecb_big_endian    (void);
-ecb_inline ecb_const ecb_bool ecb_big_endian    (void) { return ecb_byteorder_helper () == 0x11; }
+ecb_inline ecb_const ecb_bool ecb_big_endian    (void) { return ecb_byteorder_helper () == 0x11223344; }
 ecb_inline ecb_const ecb_bool ecb_little_endian (void);
-ecb_inline ecb_const ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; }
+ecb_inline ecb_const ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44332211; }
 #if ECB_GCC_VERSION(3,0) || ECB_C99
   #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
 #else
   #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
   }
 #else
   #define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
 #endif
+ecb_function_ ecb_const uint32_t ecb_binary16_to_binary32 (uint32_t x);
+ecb_function_ ecb_const uint32_t
+ecb_binary16_to_binary32 (uint32_t x)
+{
+  unsigned int s = (x & 0x8000) << (31 - 15);
+  int          e = (x >> 10) & 0x001f;
+  unsigned int m =  x        & 0x03ff;
+  if (ecb_expect_false (e == 31))
+    /* infinity or NaN */
+    e = 255 - (127 - 15);
+  else if (ecb_expect_false (!e))
+    {
+      if (ecb_expect_true (!m))
+        /* zero, handled by code below by forcing e to 0 */
+        e = 0 - (127 - 15);
+      else
+        {
+          /* subnormal, renormalise */
+          unsigned int s = 10 - ecb_ld32 (m);
+          m = (m << s) & 0x3ff; /* mask implicit bit */
+          e -= s - 1;
+        }
+    }
+  /* e and m now are normalised, or zero, (or inf or nan) */
+  e += 127 - 15;
+  return s | (e << 23) | (m << (23 - 10));
+}
+ecb_function_ ecb_const uint16_t ecb_binary32_to_binary16 (uint32_t x);
+ecb_function_ ecb_const uint16_t
+ecb_binary32_to_binary16 (uint32_t x)
+{
+  unsigned int s =  (x >> 16) & 0x00008000; /* sign bit, the easy part */
+  unsigned int e = ((x >> 23) & 0x000000ff) - (127 - 15); /* the desired exponent */
+  unsigned int m =   x        & 0x007fffff;
+  x &= 0x7fffffff;
+  /* if it's within range of binary16 normals, use fast path */
+  if (ecb_expect_true (0x38800000 <= x && x <= 0x477fefff))
+    {
+      /* mantissa round-to-even */
+      m += 0x00000fff + ((m >> (23 - 10)) & 1);
+      /* handle overflow */
+      if (ecb_expect_false (m >= 0x00800000))
+        {
+          m >>= 1;
+          e +=  1;
+        }
+      return s | (e << 10) | (m >> (23 - 10));
+    }
+  /* handle large numbers and infinity */
+  if (ecb_expect_true (0x477fefff < x && x <= 0x7f800000))
+    return s | 0x7c00;
+  /* handle zero, subnormals and small numbers */
+  if (ecb_expect_true (x < 0x38800000))
+    {
+      /* zero */
+      if (ecb_expect_true (!x))
+        return s;
+      /* handle subnormals */
+      /* too small, will be zero */
+      if (e < (14 - 24)) /* might not be sharp, but is good enough */
+        return s;
+      m |= 0x00800000; /* make implicit bit explicit */
+      /* very tricky - we need to round to the nearest e (+10) bit value */
+      {
+        unsigned int bits = 14 - e;
+        unsigned int half = (1 << (bits - 1)) - 1;
+        unsigned int even = (m >> bits) & 1;
+        /* if this overflows, we will end up with a normalised number */
+        m = (m + half + even) >> bits;
+      }
+      return s | m;
+    }
+  /* handle NaNs, preserve leftmost nan bits, but make sure we don't turn them into infinities */
+  m >>= 13;
+  return s | 0x7c00 | m | !m;
+}
 /*******************************************************************************/
 /* floating point stuff, can be disabled by defining ECB_NO_LIBM */
 /* basically, everything uses "ieee pure-endian" floating point numbers */
 /* the only noteworthy exception is ancient armle, which uses order 43218765 */
 #if 0 \
     || __i386 || __i386__ \
-    || __amd64 || __amd64__ || __x86_64 || __x86_64__ \
+    || ECB_GCC_AMD64 \
     || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \
     || defined __s390__ || defined __s390x__ \
     || defined __mips__ \
     || defined __alpha__ \
     || defined __hppa__ \
     || defined __ia64__ \
     || defined __m68k__ \
     || defined __m88k__ \
     || defined __sh__ \
-    || defined _M_IX86 || defined _M_AMD64 || defined _M_IA64 \
+    || defined _M_IX86 || defined ECB_MSVC_AMD64 || defined _M_IA64 \
     || (defined __arm__ && (defined __ARM_EABI__ || defined __EABI__ || defined __VFP_FP__ || defined _WIN32_WCE || defined __ANDROID__)) \
     || defined __aarch64__
   #define ECB_STDFP 1
   #include <string.h> /* for memcpy */
 #else
     #define ECB_NAN ECB_INFINITY
   #endif
   #if ECB_C99 || _XOPEN_VERSION >= 600 || _POSIX_VERSION >= 200112L
     #define ecb_ldexpf(x,e) ldexpf ((x), (e))
+    #define ecb_frexpf(x,e) frexpf ((x), (e))
   #else
-    #define ecb_ldexpf(x,e) (float) ldexp ((x), (e))
+    #define ecb_ldexpf(x,e) (float) ldexp ((double) (x), (e))
+    #define ecb_frexpf(x,e) (float) frexp ((double) (x), (e))
   #endif
-  /* converts an ieee half/binary16 to a float */
-  ecb_function_ ecb_const float ecb_binary16_to_float (uint16_t x);
-  ecb_function_ ecb_const float
-  ecb_binary16_to_float (uint16_t x)
-  {
-    int e = (x >> 10) & 0x1f;
-    int m = x & 0x3ff;
-    float r;
-    if      (!e     ) r = ecb_ldexpf (m        ,    -24);
-    else if (e != 31) r = ecb_ldexpf (m + 0x400, e - 25);
-    else if (m      ) r = ECB_NAN;
-    else              r = ECB_INFINITY;
-    return x & 0x8000 ? -r : r;
-  }
   /* convert a float to ieee single/binary32 */
   ecb_function_ ecb_const uint32_t ecb_float_to_binary32 (float x);
   ecb_function_ ecb_const uint32_t
   ecb_float_to_binary32 (float x)
       if (x == 0e0f                    ) return 0x00000000U;
       if (x > +3.40282346638528860e+38f) return 0x7f800000U;
       if (x < -3.40282346638528860e+38f) return 0xff800000U;
       if (x != x                       ) return 0x7fbfffffU;
-      m = frexpf (x, &e) * 0x1000000U;
+      m = ecb_frexpf (x, &e) * 0x1000000U;
       r = m & 0x80000000U;
       if (r)
         m = -m;
       r = neg ? -r : r;
     #endif
     return r;
+  }
+  /* convert a float to ieee half/binary16 */
+  ecb_function_ ecb_const uint16_t ecb_float_to_binary16 (float x);
+  ecb_function_ ecb_const uint16_t
+  ecb_float_to_binary16 (float x)
+  {
+    return ecb_binary32_to_binary16 (ecb_float_to_binary32 (x));
+  }
+  /* convert an ieee half/binary16 to float */
+  ecb_function_ ecb_const float ecb_binary16_to_float (uint16_t x);
+  ecb_function_ ecb_const float
+  ecb_binary16_to_float (uint16_t x)
+  {
+    return ecb_binary32_to_float (ecb_binary16_to_binary32 (x));
   }
 #endif
 #endif
 #define inline_size        ecb_inline
 #if EV_FEATURE_CODE
 # define inline_speed      ecb_inline
 #else
-# define inline_speed      static noinline
+# define inline_speed      noinline static
 #endif
 #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
 #if EV_MINPRI == EV_MAXPRI
 #else
 #include <float.h>
 /* a floor() replacement function, should be independent of ev_tstamp type */
+noinline
-static ev_tstamp noinline
+static ev_tstamp
 ev_floor (ev_tstamp v)
 {
   /* the choice of shift factor is not terribly important */
 #if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
   const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
 #ifdef __linux
 # include <sys/utsname.h>
 #endif
-static unsigned int noinline ecb_cold
+noinline ecb_cold
+static unsigned int
 ev_linux_version (void)
 {
 #ifdef __linux
   unsigned int v = 0;
   struct utsname buf;
 }
 /*****************************************************************************/
 #if EV_AVOID_STDIO
-static void noinline ecb_cold
+noinline ecb_cold
+static void
 ev_printerr (const char *msg)
 {
   write (STDERR_FILENO, msg, strlen (msg));
 }
 #endif
 static void (*syserr_cb)(const char *msg) EV_THROW;
-void ecb_cold
+ecb_cold
+void
 ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW
 {
   syserr_cb = cb;
 }
-static void noinline ecb_cold
+noinline ecb_cold
+static void
 ev_syserr (const char *msg)
 {
   if (!msg)
     msg = "(libev) system error";
   return 0;
 }
 static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul;
-void ecb_cold
+ecb_cold
+void
 ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW
 {
   alloc = cb;
 }
       struct timespec ts;
       EV_TS_SET (ts, delay);
       nanosleep (&ts, 0);
 #elif defined _WIN32
+      /* maybe this should round up, as ms is very low resolution */
+      /* compared to select (µs) or nanosleep (ns) */
       Sleep ((unsigned long)(delay * 1e3));
 #else
       struct timeval tv;
       /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
     }
   return ncur;
 }
-static void * noinline ecb_cold
+noinline ecb_cold
+static void *
 array_realloc (int elem, void *base, int *cur, int cnt)
 {
   *cur = array_nextsize (elem, *cur, cnt);
   return ev_realloc (base, elem * *cur);
 }
   memset ((void *)(base), 0, sizeof (*(base)) * (count))
 #define array_needsize(type,base,cur,cnt,init)			\
   if (expect_false ((cnt) > (cur)))				\
     {								\
-      int ecb_unused ocur_ = (cur);					\
+      ecb_unused int ocur_ = (cur);				\
       (base) = (type *)array_realloc				\
          (sizeof (type), (base), &(cur), (cnt));		\
       init ((base) + (ocur_), (cur) - ocur_);			\
     }
   ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0
 /*****************************************************************************/
 /* dummy callback for pending events */
-static void noinline
+noinline
+static void
 pendingcb (EV_P_ ev_prepare *w, int revents)
 {
 }
-void noinline
+noinline
+void
 ev_feed_event (EV_P_ void *w, int revents) EV_THROW
 {
   W w_ = (W)w;
   int pri = ABSPRI (w_);
   fdchangecnt = 0;
 }
 /* something about the given fd changed */
-inline_size void
+inline_size
+void
 fd_change (EV_P_ int fd, int flags)
 {
   unsigned char reify = anfds [fd].reify;
   anfds [fd].reify |= flags;
       fdchanges [fdchangecnt - 1] = fd;
     }
 }
 /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
-inline_speed void ecb_cold
+inline_speed ecb_cold void
 fd_kill (EV_P_ int fd)
 {
   ev_io *w;
   while ((w = (ev_io *)anfds [fd].head))
       ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
     }
 }
 /* check whether the given fd is actually valid, for error recovery */
-inline_size int ecb_cold
+inline_size ecb_cold int
 fd_valid (int fd)
 {
 #ifdef _WIN32
   return EV_FD_TO_WIN32_HANDLE (fd) != -1;
 #else
   return fcntl (fd, F_GETFD) != -1;
 #endif
 }
 /* called on EBADF to verify fds */
-static void noinline ecb_cold
+noinline ecb_cold
+static void
 fd_ebadf (EV_P)
 {
   int fd;
   for (fd = 0; fd < anfdmax; ++fd)
       if (!fd_valid (fd) && errno == EBADF)
         fd_kill (EV_A_ fd);
 }
 /* called on ENOMEM in select/poll to kill some fds and retry */
-static void noinline ecb_cold
+noinline ecb_cold
+static void
 fd_enomem (EV_P)
 {
   int fd;
   for (fd = anfdmax; fd--; )
         break;
       }
 }
 /* usually called after fork if backend needs to re-arm all fds from scratch */
-static void noinline
+noinline
+static void
 fd_rearm_all (EV_P)
 {
   int fd;
   for (fd = 0; fd < anfdmax; ++fd)
 /*****************************************************************************/
 #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
-static void noinline ecb_cold
+noinline ecb_cold
+static void
 evpipe_init (EV_P)
 {
   if (!ev_is_active (&pipe_w))
     {
       int fds [2];
 #endif
   ev_feed_signal (signum);
 }
-void noinline
+noinline
+void
 ev_feed_signal_event (EV_P_ int signum) EV_THROW
 {
   WL w;
   if (expect_false (signum <= 0 || signum >= EV_NSIG))
 #endif
 #if EV_USE_SELECT
 # include "ev_select.c"
 #endif
-int ecb_cold
+ecb_cold int
 ev_version_major (void) EV_THROW
 {
   return EV_VERSION_MAJOR;
 }
-int ecb_cold
+ecb_cold int
 ev_version_minor (void) EV_THROW
 {
   return EV_VERSION_MINOR;
 }
 /* return true if we are running with elevated privileges and should ignore env variables */
-int inline_size ecb_cold
+inline_size ecb_cold int
 enable_secure (void)
 {
 #ifdef _WIN32
   return 0;
 #else
   return getuid () != geteuid ()
       || getgid () != getegid ();
 #endif
 }
-unsigned int ecb_cold
+ecb_cold
+unsigned int
 ev_supported_backends (void) EV_THROW
 {
   unsigned int flags = 0;
   if (EV_USE_PORT  ) flags |= EVBACKEND_PORT;
   if (EV_USE_SELECT) flags |= EVBACKEND_SELECT;
   return flags;
 }
-unsigned int ecb_cold
+ecb_cold
+unsigned int
 ev_recommended_backends (void) EV_THROW
 {
   unsigned int flags = ev_supported_backends ();
 #ifndef __NetBSD__
 #endif
   return flags;
 }
-unsigned int ecb_cold
+ecb_cold
+unsigned int
 ev_embeddable_backends (void) EV_THROW
 {
   int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
   /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
   acquire_cb = acquire;
 }
 #endif
 /* initialise a loop structure, must be zero-initialised */
-static void noinline ecb_cold
+noinline ecb_cold
+static void
 loop_init (EV_P_ unsigned int flags) EV_THROW
 {
   if (!backend)
     {
       origflags = flags;
 #endif
     }
 }
 /* free up a loop structure */
-void ecb_cold
+ecb_cold
+void
 ev_loop_destroy (EV_P)
 {
   int i;
 #if EV_MULTIPLICITY
 #if EV_USE_INOTIFY
   infy_fork (EV_A);
 #endif
 #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
-  if (ev_is_active (&pipe_w))
+  if (ev_is_active (&pipe_w) && postfork != 2)
     {
       /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
       ev_ref (EV_A);
       ev_io_stop (EV_A_ &pipe_w);
   postfork = 0;
 }
 #if EV_MULTIPLICITY
+ecb_cold
-struct ev_loop * ecb_cold
+struct ev_loop *
 ev_loop_new (unsigned int flags) EV_THROW
 {
   EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
   memset (EV_A, 0, sizeof (struct ev_loop));
 }
 #endif /* multiplicity */
 #if EV_VERIFY
-static void noinline ecb_cold
+noinline ecb_cold
+static void
 verify_watcher (EV_P_ W w)
 {
   assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
   if (w->pending)
     assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
 }
-static void noinline ecb_cold
+noinline ecb_cold
+static void
 verify_heap (EV_P_ ANHE *heap, int N)
 {
   int i;
   for (i = HEAP0; i < N + HEAP0; ++i)
       verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
     }
 }
-static void noinline ecb_cold
+noinline ecb_cold
+static void
 array_verify (EV_P_ W *ws, int cnt)
 {
   while (cnt--)
     {
       assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
 #endif
 }
 #endif
 #if EV_MULTIPLICITY
+ecb_cold
-struct ev_loop * ecb_cold
+struct ev_loop *
 #else
 int
 #endif
 ev_default_loop (unsigned int flags) EV_THROW
 {
     count += pendingcnt [pri];
   return count;
 }
-void noinline
+noinline
+void
 ev_invoke_pending (EV_P)
 {
   pendingpri = NUMPRI;
-  while (pendingpri) /* pendingpri possibly gets modified in the inner loop */
+  do
     {
       --pendingpri;
+      /* pendingpri possibly gets modified in the inner loop */
       while (pendingcnt [pendingpri])
         {
           ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
           p->w->pending = 0;
           EV_CB_INVOKE (p->w, p->events);
           EV_FREQUENT_CHECK;
         }
     }
+  while (pendingpri);
 }
 #if EV_IDLE_ENABLE
 /* make idle watchers pending. this handles the "call-idle */
 /* only when higher priorities are idle" logic */
     }
 }
 #if EV_PERIODIC_ENABLE
-static void noinline
+noinline
+static void
 periodic_recalc (EV_P_ ev_periodic *w)
 {
   ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
   ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);
     }
 }
 /* simply recalculate all periodics */
 /* TODO: maybe ensure that at least one event happens when jumping forward? */
-static void noinline ecb_cold
+noinline ecb_cold
+static void
 periodics_reschedule (EV_P)
 {
   int i;
   /* adjust periodics after time jump */
   reheap (periodics, periodiccnt);
 }
 #endif
 /* adjust all timers by a given offset */
-static void noinline ecb_cold
+noinline ecb_cold
+static void
 timers_reschedule (EV_P_ ev_tstamp adjust)
 {
   int i;
   for (i = 0; i < timercnt; ++i)
   w->active = 0;
 }
 /*****************************************************************************/
-void noinline
+noinline
+void
 ev_io_start (EV_P_ ev_io *w) EV_THROW
 {
   int fd = w->fd;
   if (expect_false (ev_is_active (w)))
   w->events &= ~EV__IOFDSET;
   EV_FREQUENT_CHECK;
 }
-void noinline
+noinline
+void
 ev_io_stop (EV_P_ ev_io *w) EV_THROW
 {
   clear_pending (EV_A_ (W)w);
   if (expect_false (!ev_is_active (w)))
     return;
   fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
   EV_FREQUENT_CHECK;
 }
-void noinline
+noinline
+void
 ev_timer_start (EV_P_ ev_timer *w) EV_THROW
 {
   if (expect_false (ev_is_active (w)))
     return;
   EV_FREQUENT_CHECK;
   /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
 }
-void noinline
+noinline
+void
 ev_timer_stop (EV_P_ ev_timer *w) EV_THROW
 {
   clear_pending (EV_A_ (W)w);
   if (expect_false (!ev_is_active (w)))
     return;
   ev_stop (EV_A_ (W)w);
   EV_FREQUENT_CHECK;
 }
-void noinline
+noinline
+void
 ev_timer_again (EV_P_ ev_timer *w) EV_THROW
 {
   EV_FREQUENT_CHECK;
   clear_pending (EV_A_ (W)w);
 {
   return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
 }
 #if EV_PERIODIC_ENABLE
-void noinline
+noinline
+void
 ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW
 {
   if (expect_false (ev_is_active (w)))
     return;
   EV_FREQUENT_CHECK;
   /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
 }
-void noinline
+noinline
+void
 ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW
 {
   clear_pending (EV_A_ (W)w);
   if (expect_false (!ev_is_active (w)))
     return;
   ev_stop (EV_A_ (W)w);
   EV_FREQUENT_CHECK;
 }
-void noinline
+noinline
+void
 ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW
 {
   /* TODO: use adjustheap and recalculation */
   ev_periodic_stop (EV_A_ w);
   ev_periodic_start (EV_A_ w);
 # define SA_RESTART 0
 #endif
 #if EV_SIGNAL_ENABLE
-void noinline
+noinline
+void
 ev_signal_start (EV_P_ ev_signal *w) EV_THROW
 {
   if (expect_false (ev_is_active (w)))
     return;
       }
   EV_FREQUENT_CHECK;
 }
-void noinline
+noinline
+void
 ev_signal_stop (EV_P_ ev_signal *w) EV_THROW
 {
   clear_pending (EV_A_ (W)w);
   if (expect_false (!ev_is_active (w)))
     return;
 #define DEF_STAT_INTERVAL  5.0074891
 #define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */
 #define MIN_STAT_INTERVAL  0.1074891
-static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);
+noinline static void stat_timer_cb (EV_P_ ev_timer *w_, int revents);
 #if EV_USE_INOTIFY
 /* the * 2 is to allow for alignment padding, which for some reason is >> 8 */
 # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
-static void noinline
+noinline
+static void
 infy_add (EV_P_ ev_stat *w)
 {
   w->wd = inotify_add_watch (fs_fd, w->path,
                              IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY
                              | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO
   if (ev_is_active (&w->timer)) ev_ref (EV_A);
   ev_timer_again (EV_A_ &w->timer);
   if (ev_is_active (&w->timer)) ev_unref (EV_A);
 }
-static void noinline
+noinline
+static void
 infy_del (EV_P_ ev_stat *w)
 {
   int slot;
   int wd = w->wd;
   /* remove this watcher, if others are watching it, they will rearm */
   inotify_rm_watch (fs_fd, wd);
 }
-static void noinline
+noinline
+static void
 infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
 {
   if (slot < 0)
     /* overflow, need to check for all hash slots */
     for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
       infy_wd (EV_A_ ev->wd, ev->wd, ev);
       ofs += sizeof (struct inotify_event) + ev->len;
     }
 }
-inline_size void ecb_cold
+inline_size ecb_cold
+void
 ev_check_2625 (EV_P)
 {
   /* kernels < 2.6.25 are borked
    * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
    */
     w->attr.st_nlink = 0;
   else if (!w->attr.st_nlink)
     w->attr.st_nlink = 1;
 }
-static void noinline
+noinline
+static void
 stat_timer_cb (EV_P_ ev_timer *w_, int revents)
 {
   ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
   ev_statdata prev = w->attr;
   EV_FREQUENT_CHECK;
 }
 #endif
 #if EV_EMBED_ENABLE
-void noinline
+noinline
+void
 ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW
 {
   ev_run (w->other, EVRUN_NOWAIT);
 }
 }
 /*****************************************************************************/
 #if EV_WALK_ENABLE
-void ecb_cold
+ecb_cold
+void
 ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW
 {
   int i, j;
   ev_watcher_list *wl, *wn;

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+Removed lines
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+Added lines
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Comparing libev/ev.c (file contents): Revision 1.474 by root, Wed Feb 11 19:20:21 2015 UTC vs. Revision 1.484 by root, Tue Jul 31 05:40:58 2018 UTC

Diff Legend

Comparing libev/ev.c (file contents):
Revision 1.474 by root, Wed Feb 11 19:20:21 2015 UTC vs.
Revision 1.484 by root, Tue Jul 31 05:40:58 2018 UTC