| … | |
… | |
| 137 | EOF |
137 | EOF |
| 138 | |
138 | |
| 139 | my $can_epoll = have_inc "sys/epoll.h"; |
139 | my $can_epoll = have_inc "sys/epoll.h"; |
| 140 | $can_epoll = $ENV{EV_EPOLL} if exists $ENV{EV_EPOLL}; |
140 | $can_epoll = $ENV{EV_EPOLL} if exists $ENV{EV_EPOLL}; |
| 141 | $DEFINE .= " -DEV_USE_EPOLL=" . (0 + (prompt ("Enable epoll backend (y/n)?", $can_epoll ? "y" : "n") =~ /[yY]/)); |
141 | $DEFINE .= " -DEV_USE_EPOLL=" . (0 + (prompt ("Enable epoll backend (y/n)?", $can_epoll ? "y" : "n") =~ /[yY]/)); |
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142 | |
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143 | print <<EOF; |
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144 | |
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145 | *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** |
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146 | |
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147 | |
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148 | Linux 4.18 introduced another event polling interface, this time using |
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149 | the Linux AIO API. While this API is far superior to epoll and almost |
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150 | rivals kqueue, it also suffers from the same issues as kqueue typically |
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151 | does: only a subset of file types are supported (as of 4.19, I have seen |
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152 | eventfd, pipes, sockets files and some devices, but no ttys). It also |
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153 | is subject arbitrary system-wide limits imposed on it. Therefore, this |
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154 | backend is not used by default, even when it is compiled in, and you have |
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155 | to request it explicitly, e.g. with LIBEV_FLAGS=64. If unsure, accept the |
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156 | default. |
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157 | |
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158 | EOF |
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159 | |
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160 | my $can_linuxaio = have_inc "linux/aio_abi.h"; |
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161 | $can_linuxaio or die; |
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162 | $can_linuxaio = $ENV{EV_LINUXAIO} if exists $ENV{EV_LINUXAIO}; |
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163 | $DEFINE .= " -DEV_USE_LINUXAIO=" . (0 + (prompt ("Enable linux aio backend (y/n)?", $can_linuxaio ? "y" : "n") =~ /[yY]/)); |
| 142 | |
164 | |
| 143 | print <<EOF; |
165 | print <<EOF; |
| 144 | |
166 | |
| 145 | *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** |
167 | *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** |
| 146 | |
168 | |
