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Comparing libev/ev_select.c (file contents):
Revision 1.6 by root, Wed Oct 31 20:46:44 2007 UTC vs.
Revision 1.11 by root, Sun Nov 4 00:24:17 2007 UTC

1/* 1/*
2 * libev select fd activity backend
3 *
2 * Copyright (c) 2007 Marc Alexander Lehmann <libev@schmorp.de> 4 * Copyright (c) 2007 Marc Alexander Lehmann <libev@schmorp.de>
3 * All rights reserved. 5 * All rights reserved.
4 * 6 *
5 * Redistribution and use in source and binary forms, with or without 7 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are 8 * modification, are permitted provided that the following conditions are
… …
31#include <sys/time.h> 33#include <sys/time.h>
32#include <sys/types.h> 34#include <sys/types.h>
33#include <unistd.h> 35#include <unistd.h>
34 36
35/* for unix systems */ 37/* for unix systems */
38#ifndef WIN32
36#include <sys/select.h> 39# include <sys/select.h>
40#endif
37 41
38#include <string.h> 42#include <string.h>
39#include <inttypes.h> 43#include <inttypes.h>
40 44
41static unsigned char *vec_ri, *vec_ro, *vec_wi, *vec_wo;
42static int vec_max;
43
44static void 45static void
45select_modify (int fd, int oev, int nev) 46select_modify (EV_P_ int fd, int oev, int nev)
46{ 47{
47 int offs = fd >> 3; 48 int offs = fd >> 3;
48 int mask = 1 << (fd & 7); 49 int mask = 1 << (fd & 7);
49 50
50 if (vec_max < (fd >> 5) + 1) 51 if (vec_max < (fd >> 5) + 1)
… …
69 if (!(nev & EV_WRITE)) 70 if (!(nev & EV_WRITE))
70 vec_wi [offs] &= ~mask; 71 vec_wi [offs] &= ~mask;
71} 72}
72 73
73static void 74static void
74select_poll (ev_tstamp timeout) 75select_poll (EV_P_ ev_tstamp timeout)
75{ 76{
76 struct timeval tv; 77 struct timeval tv;
77 int res; 78 int res;
78 79
79 memcpy (vec_ro, vec_ri, vec_max * 4); 80 memcpy (vec_ro, vec_ri, vec_max * 4);
… …
104 int events = 0; 105 int events = 0;
105 events |= byte_r & (1 << bit) ? EV_READ : 0; 106 events |= byte_r & (1 << bit) ? EV_READ : 0;
106 events |= byte_w & (1 << bit) ? EV_WRITE : 0; 107 events |= byte_w & (1 << bit) ? EV_WRITE : 0;
107 108
108 if (events) 109 if (events)
109 fd_event (idx * 8 + bit, events); 110 fd_event (EV_A_ idx * 8 + bit, events);
110 } 111 }
111 } 112 }
112 } 113 }
113 } 114 }
114 else if (res < 0) 115 else if (res < 0)
115 { 116 {
116 if (errno == EBADF) 117 if (errno == EBADF)
117 fd_recheck (); 118 fd_ebadf (EV_A);
119 else if (errno == ENOMEM)
120 fd_enomem (EV_A);
118 } 121 }
119} 122}
120 123
121static void 124static int
122select_init (int flags) 125select_init (EV_P_ int flags)
123{ 126{
124 ev_method = EVMETHOD_SELECT;
125 method_fudge = 1e-2; /* needed to compensate for select returning early, very conservative */ 127 method_fudge = 1e-2; /* needed to compensate for select returning early, very conservative */
126 method_modify = select_modify; 128 method_modify = select_modify;
127 method_poll = select_poll; 129 method_poll = select_poll;
130
131 return EVMETHOD_SELECT;
128} 132}
129 133

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