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| 117 | innermost call to EV::loop return. |
117 | innermost call to EV::loop return. |
| 118 | |
118 | |
| 119 | When called with an argument of EV::UNLOOP_ALL, all calls to EV::loop will return as |
119 | When called with an argument of EV::UNLOOP_ALL, all calls to EV::loop will return as |
| 120 | fast as possible. |
120 | fast as possible. |
| 121 | |
121 | |
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122 | =item EV::once $fh_or_undef, $events, $timeout, $cb->($events) |
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123 | |
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124 | This function rolls together an I/O and a timer watcher for a single |
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125 | one-shot event without the need for managing a watcher object. |
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126 | |
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127 | If C<$fh_or_undef> is a filehandle or file descriptor, then C<$events> |
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128 | must be a bitset containing either C<EV::READ>, C<EV::WRITE> or C<EV::READ |
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129 | | EV::WRITE>, indicating the type of I/O event you want to wait for. If |
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130 | you do not want to wait for some I/O event, specify C<undef> for |
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131 | C<$fh_or_undef> and C<0> for C<$events>). |
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132 | |
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133 | If timeout is C<undef> or negative, then there will be no |
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134 | timeout. Otherwise a EV::timer with this value will be started. |
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135 | |
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136 | When an error occurs or either the timeout or I/O watcher triggers, then |
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137 | the callback will be called with the received event set (in general |
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138 | you can expect it to be a combination of C<EV:ERROR>, C<EV::READ>, |
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139 | C<EV::WRITE> and C<EV::TIMEOUT>). |
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140 | |
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141 | EV::once doesn't return anything: the watchers stay active till either |
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142 | of them triggers, then they will be stopped and freed, and the callback |
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143 | invoked. |
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144 | |
| 122 | =back |
145 | =back |
| 123 | |
146 | |
| 124 | =head2 WATCHER |
147 | =head2 WATCHER |
| 125 | |
148 | |
| 126 | A watcher is an object that gets created to record your interest in some |
149 | A watcher is an object that gets created to record your interest in some |
