--- libev/ev_select.c	2007/11/04 00:24:17	1.11
+++ libev/ev_select.c	2007/11/06 16:09:37	1.17
@@ -29,96 +29,134 @@
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-/* for broken bsd's */
-#include <sys/time.h>
-#include <sys/types.h>
-#include <unistd.h>
-
 /* for unix systems */
-#ifndef WIN32
+#ifdef WIN32
+typedef unsigned int uint32_t;
+# define EV_SELECT_USE_FD_SET 1
+#else
 # include <sys/select.h>
+# include <inttypes.h>
 #endif
 
 #include <string.h>
-#include <inttypes.h>
 
 static void
 select_modify (EV_P_ int fd, int oev, int nev)
 {
-  int offs = fd >> 3;
-  int mask = 1 << (fd & 7);
-
-  if (vec_max < (fd >> 5) + 1)
-    {
-      int new_max = (fd >> 5) + 1;
+  if (oev == nev)
+    return;
 
-      vec_ri = (unsigned char *)realloc (vec_ri, new_max * 4);
-      vec_ro = (unsigned char *)realloc (vec_ro, new_max * 4); /* could free/malloc */
-      vec_wi = (unsigned char *)realloc (vec_wi, new_max * 4);
-      vec_wo = (unsigned char *)realloc (vec_wo, new_max * 4); /* could free/malloc */
-
-      for (; vec_max < new_max; ++vec_max)
-        ((uint32_t *)vec_ri)[vec_max] =
-        ((uint32_t *)vec_wi)[vec_max] = 0;
-    }
-
-  vec_ri [offs] |= mask;
-  if (!(nev & EV_READ))
-    vec_ri [offs] &= ~mask;
-
-  vec_wi [offs] |= mask;
-  if (!(nev & EV_WRITE))
-    vec_wi [offs] &= ~mask;
+#if EV_SELECT_USE_FD_SET
+  if (nev & EV_READ)
+    FD_SET (fd, (struct fd_set *)vec_ri);
+  else
+    FD_CLR (fd, (struct fd_set *)vec_ri);
+
+  if (nev & EV_WRITE)
+    FD_SET (fd, (struct fd_set *)vec_wi);
+  else
+    FD_CLR (fd, (struct fd_set *)vec_wi);
+#else
+  {
+    int offs = fd >> 3;
+    int mask = 1 << (fd & 7);
+
+    if (vec_max < (fd >> 5) + 1)
+      {
+        int new_max = (fd >> 5) + 1;
+
+        vec_ri = (unsigned char *)ev_realloc (vec_ri, new_max * 4);
+        vec_ro = (unsigned char *)ev_realloc (vec_ro, new_max * 4); /* could free/malloc */
+        vec_wi = (unsigned char *)ev_realloc (vec_wi, new_max * 4);
+        vec_wo = (unsigned char *)ev_realloc (vec_wo, new_max * 4); /* could free/malloc */
+
+        for (; vec_max < new_max; ++vec_max)
+          ((uint32_t *)vec_ri)[vec_max] =
+          ((uint32_t *)vec_wi)[vec_max] = 0;
+      }
+
+    vec_ri [offs] |= mask;
+    if (!(nev & EV_READ))
+      vec_ri [offs] &= ~mask;
+
+    vec_wi [offs] |= mask;
+    if (!(nev & EV_WRITE))
+      vec_wi [offs] &= ~mask;
+  }
+#endif
 }
 
 static void
 select_poll (EV_P_ ev_tstamp timeout)
 {
+  int word, offs;
   struct timeval tv;
   int res;
 
+#if EV_SELECT_USE_FD_SET
+  memcpy (vec_ro, vec_ri, sizeof (struct fd_set));
+  memcpy (vec_wo, vec_wi, sizeof (struct fd_set));
+#else
   memcpy (vec_ro, vec_ri, vec_max * 4);
   memcpy (vec_wo, vec_wi, vec_max * 4);
+#endif
 
   tv.tv_sec  = (long)timeout;
   tv.tv_usec = (long)((timeout - (ev_tstamp)tv.tv_sec) * 1e6);
 
   res = select (vec_max * 32, (fd_set *)vec_ro, (fd_set *)vec_wo, 0, &tv);
 
-  if (res > 0)
+  if (res < 0)
     {
-      int word, offs;
+#ifdef WIN32
+      if (errno == WSAEINTR   ) errno = EINTR;
+      if (errno == WSAENOTSOCK) errno = EBADF;
+#endif
 
-      for (word = vec_max; word--; )
-        {
-          if (((uint32_t *)vec_ro) [word] | ((uint32_t *)vec_wo) [word])
-            for (offs = 4; offs--; )
-              {
-                int idx = word * 4 + offs;
-                unsigned char byte_r = vec_ro [idx];
-                unsigned char byte_w = vec_wo [idx];
-                int bit;
-
-                if (byte_r | byte_w)
-                  for (bit = 8; bit--; )
-                    {
-                      int events = 0;
-                      events |= byte_r & (1 << bit) ? EV_READ  : 0;
-                      events |= byte_w & (1 << bit) ? EV_WRITE : 0;
-
-                      if (events)
-                        fd_event (EV_A_ idx * 8 + bit, events);
-                    }
-              }
-        }
-    }
-  else if (res < 0)
-    {
       if (errno == EBADF)
         fd_ebadf (EV_A);
-      else if (errno == ENOMEM)
+      else if (errno == ENOMEM && !syserr_cb)
         fd_enomem (EV_A);
+      else if (errno != EINTR)
+        syserr ("(libev) select");
+
+      return;
     }
+
+#if EV_SELECT_USE_FD_SET
+  for (word = 0; word < FD_SETSIZE; ++word)
+    {
+      int events = 0;
+      if (FD_ISSET (word, (struct fd_set *)vec_ro)) events |= EV_READ;
+      if (FD_ISSET (word, (struct fd_set *)vec_wo)) events |= EV_WRITE;
+
+      if (events)
+        fd_event (EV_A_ word, events);
+    }
+#else
+  for (word = vec_max; word--; )
+    {
+      if (((uint32_t *)vec_ro) [word] | ((uint32_t *)vec_wo) [word])
+        for (offs = 4; offs--; )
+          {
+            int idx = word * 4 + offs;
+            unsigned char byte_r = vec_ro [idx];
+            unsigned char byte_w = vec_wo [idx];
+            int bit;
+
+            if (byte_r | byte_w)
+              for (bit = 8; bit--; )
+                {
+                  int events = 0;
+                  events |= byte_r & (1 << bit) ? EV_READ  : 0;
+                  events |= byte_w & (1 << bit) ? EV_WRITE : 0;
+
+                  if (events)
+                    fd_event (EV_A_ idx * 8 + bit, events);
+                }
+          }
+    }
+#endif
 }
 
 static int
@@ -128,6 +166,30 @@
   method_modify = select_modify;
   method_poll   = select_poll;
 
+#if EV_SELECT_USE_FD_SET
+  vec_max = FD_SETSIZE / 32;
+  vec_ri  = ev_malloc (sizeof (struct fd_set)); FD_ZERO ((struct fd_set *)vec_ri);
+  vec_ro  = ev_malloc (sizeof (struct fd_set));
+  vec_wi  = ev_malloc (sizeof (struct fd_set)); FD_ZERO ((struct fd_set *)vec_wi);
+  vec_wo  = ev_malloc (sizeof (struct fd_set));
+#else
+  vec_max = 0;
+  vec_ri  = 0; 
+  vec_ri  = 0;   
+  vec_wo  = 0; 
+  vec_wo  = 0; 
+#endif
+
   return EVMETHOD_SELECT;
 }
 
+static void
+select_destroy (EV_P)
+{
+  ev_free (vec_ri);
+  ev_free (vec_ro);
+  ev_free (vec_wi);
+  ev_free (vec_wo);
+}
+
+