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40 | |
40 | |
41 | ev_select.c only when select backend is enabled (which is is by default) |
41 | ev_select.c only when select backend is enabled (which is is by default) |
42 | ev_poll.c only when poll backend is enabled (disabled by default) |
42 | ev_poll.c only when poll backend is enabled (disabled by default) |
43 | ev_epoll.c only when the epoll backend is enabled (disabled by default) |
43 | ev_epoll.c only when the epoll backend is enabled (disabled by default) |
44 | ev_kqueue.c only when the kqueue backend is enabled (disabled by default) |
44 | ev_kqueue.c only when the kqueue backend is enabled (disabled by default) |
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45 | ev_port.c only when the solaris port backend is enabled (disabled by default) |
45 | |
46 | |
46 | "ev.c" includes the backend files directly when enabled. |
47 | "ev.c" includes the backend files directly when enabled. |
47 | |
48 | |
48 | LIBEVENT COMPATIBILITY API |
49 | LIBEVENT COMPATIBILITY API |
49 | |
50 | |
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83 | will also not define any of the structs usually found in "event.h" |
84 | will also not define any of the structs usually found in "event.h" |
84 | that are not directly supported by libev code alone. |
85 | that are not directly supported by libev code alone. |
85 | |
86 | |
86 | EV_USE_MONOTONIC |
87 | EV_USE_MONOTONIC |
87 | |
88 | |
88 | If undefined or defined to be "1", libev will try to detect the |
89 | If defined to be "1", libev will try to detect the availability |
89 | availability of the monotonic clock option at both compiletime and |
90 | of the monotonic clock option at both compiletime and |
90 | runtime. Otherwise no use of the monotonic clock option will be |
91 | runtime. Otherwise no use of the monotonic clock option will be |
91 | attempted. |
92 | attempted. If you enable this, you usually have to link against |
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93 | librt or something similar. Enabling it when the functionality |
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94 | isn't available is safe, though. |
92 | |
95 | |
93 | EV_USE_REALTIME |
96 | EV_USE_REALTIME |
94 | |
97 | |
95 | If defined to be "1", libev will try to detect the availability |
98 | If defined to be "1", libev will try to detect the availability |
96 | of the realtime clock option at compiletime (and assume its |
99 | of the realtime clock option at compiletime (and assume its |
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104 | If undefined or defined to be "1", libev will compile in support |
107 | If undefined or defined to be "1", libev will compile in support |
105 | for the select(2) backend. No attempt at autodetection will be |
108 | for the select(2) backend. No attempt at autodetection will be |
106 | done: if no other method takes over, select will be it. Otherwise |
109 | done: if no other method takes over, select will be it. Otherwise |
107 | the select backend will not be compiled in. |
110 | the select backend will not be compiled in. |
108 | |
111 | |
109 | EV_SELECT_USE_WIN32_HANDLES |
112 | EV_SELECT_USE_FD_SET |
110 | |
113 | |
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114 | If defined to 1, then the select backend will use the system fd_set |
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115 | structure. This is useful if libev doesn't compile due to a missing |
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116 | NFDBITS or fd_mask definition or it misguesses the bitset layout on |
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117 | exotic systems. This usually limits the range of file descriptors |
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118 | to some low limit such as 1024 or might have other limitations |
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119 | (winsocket only allows 64 sockets). The FD_SETSIZE macro, set |
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120 | before compilation, might influence the size of the fd_set used. |
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121 | |
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122 | EV_SELECT_IS_WINSOCKET |
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123 | |
111 | When defined to 1, the select backend will assume that select |
124 | When defined to 1, the select backend will assume that |
112 | doesn't understand file descriptors but wants osf handles on |
125 | select/socket/connect etc. don't understand file descriptors but |
113 | win32 (this is the case when the select to be used is the winsock |
126 | wants osf handles on win32 (this is the case when the select to |
114 | select). This means that it will call _get_osfhandle on the fd to |
127 | be used is the winsock select). This means that it will call |
115 | convert it to an OS handle. Should not be defined on non-win32 |
128 | _get_osfhandle on the fd to convert it to an OS handle. Otherwise, |
116 | platforms. |
129 | it is assumed that all these functions actually work on fds, even |
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130 | on win32. Should not be defined on non-win32 platforms. |
117 | |
131 | |
118 | EV_USE_POLL |
132 | EV_USE_POLL |
119 | |
133 | |
120 | If defined to be "1", libev will compile in support for the poll(2) |
134 | If defined to be "1", libev will compile in support for the poll(2) |
121 | backend. No attempt at autodetection will be done. poll usually |
135 | backend. Otherwise it will be enabled on non-win32 platforms. It |
122 | performs worse than select, so its not enabled by default (it is |
136 | takes precedence over select. |
123 | also slightly less portable). |
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124 | |
137 | |
125 | EV_USE_EPOLL |
138 | EV_USE_EPOLL |
126 | |
139 | |
127 | If defined to be "1", libev will compile in support for the Linux |
140 | If defined to be "1", libev will compile in support for the Linux |
128 | epoll backend. Its availability will be detected at runtime, |
141 | epoll backend. Its availability will be detected at runtime, |
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132 | EV_USE_KQUEUE |
145 | EV_USE_KQUEUE |
133 | |
146 | |
134 | If defined to be "1", libev will compile in support for the BSD |
147 | If defined to be "1", libev will compile in support for the BSD |
135 | style kqueue backend. Its availability will be detected at runtime, |
148 | style kqueue backend. Its availability will be detected at runtime, |
136 | otherwise another method will be used as fallback. This is the |
149 | otherwise another method will be used as fallback. This is the |
137 | preferred backend for BSD and BSd-like systems. Darwin brokenness |
150 | preferred backend for BSD and BSD-like systems. Darwin brokenness |
138 | will be detected at runtime and routed around by disabling this |
151 | will be detected at runtime and routed around by disabling this |
139 | backend. |
152 | backend. |
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153 | |
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154 | EV_USE_PORT |
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155 | |
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156 | If defined to be "1", libev will compile in support for the Solaris |
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157 | 10 port style backend. Its availability will be detected at runtime, |
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158 | otherwise another method will be used as fallback. This is the |
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159 | preferred backend for Solaris 10 systems. |
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160 | |
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161 | EV_USE_DEVPOLL |
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162 | |
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163 | reserved for future expansion, works like the USE symbols above. |
140 | |
164 | |
141 | EV_H |
165 | EV_H |
142 | |
166 | |
143 | The name of the ev.h header file used to include it. The default |
167 | The name of the ev.h header file used to include it. The default |
144 | if undefined is <ev.h> in event.h and "ev.h" in ev.c. This can |
168 | if undefined is <ev.h> in event.h and "ev.h" in ev.c. This can |