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61 lines
1.8 KiB
61 lines
1.8 KiB
.\" |
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.\" Copyright 1998 by the Massachusetts Institute of Technology. |
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.\" |
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.\" Permission to use, copy, modify, and distribute this |
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.\" software and its documentation for any purpose and without |
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.\" fee is hereby granted, provided that the above copyright |
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.\" notice appear in all copies and that both that copyright |
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.\" notice and this permission notice appear in supporting |
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.\" documentation, and that the name of M.I.T. not be used in |
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.\" advertising or publicity pertaining to distribution of the |
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.\" software without specific, written prior permission. |
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.\" M.I.T. makes no representations about the suitability of |
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.\" this software for any purpose. It is provided "as is" |
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.\" without express or implied warranty. |
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.\" |
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.TH ARES_TIMEOUT 3 "25 July 1998" |
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.SH NAME |
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ares_timeout \- return maximum time to wait |
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.SH SYNOPSIS |
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.nf |
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.B #include <ares.h> |
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.PP |
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.B struct timeval *ares_timeout(ares_channel \fIchannel\fP, |
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.B struct timeval *\fImaxtv\fP, struct timeval *\fItv\fP) |
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.fi |
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.SH DESCRIPTION |
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The |
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.B ares_timeout |
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function determines the maximum time for which the caller should wait before |
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invoking \fIares_process(3)\fP to process timeouts. The parameter |
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.I maxtv |
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specifies a existing maximum timeout, or |
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.B NULL |
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if the caller does not wish to apply a maximum timeout. The parameter |
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.I tv |
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must point to a writable buffer of type |
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.BR "struct timeval" . |
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It is valid for |
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.I maxtv |
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and |
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.I tv |
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to have the same value. |
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.PP |
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If no queries have timeouts pending sooner than the given maximum |
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timeout, |
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.B ares_timeout |
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returns the value of |
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.IR maxtv; |
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otherwise |
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.B ares_timeout |
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stores the appropriate timeout value into the buffer pointed to by |
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.I tv |
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and returns the value of |
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.IR tv . |
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.SH SEE ALSO |
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.BR ares_fds (3), |
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.BR ares_process (3) |
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.SH AUTHOR |
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Greg Hudson, MIT Information Systems |
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.br |
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Copyright 1998 by the Massachusetts Institute of Technology.
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