4.104.114.84.95
Last change
on this file since d9f6165 was
d9f6165,
checked in by Joel Sherrill <joel.sherrill@…>, on 01/12/01 at 13:34:24
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2001-01-12 Joel Sherrill <joel@…>
- src/README.mqueue: Enhanced example.
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-
Property mode set to
100644
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File size:
755 bytes
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Line | |
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1 | # |
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2 | # $Id$ |
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3 | # |
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4 | |
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5 | This program should print out the default attribute settings for a |
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6 | POSIX message queue. |
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7 | |
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8 | #include <mqueue.h> |
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9 | #include <stdio.h> |
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10 | |
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11 | main() |
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12 | { |
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13 | mqd_t mqfd; |
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14 | struct mq_attr mqstat; |
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15 | int status; |
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16 | |
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17 | /* this should create it */ |
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18 | mqfd = mq_open("myipc",O_WRONLY|O_CREAT,NULL); |
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19 | if ( (int)mqfd == -1 ) { |
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20 | perror( "Unable to open message queue" ); |
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21 | exit( 1 ); |
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22 | } |
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23 | |
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24 | status = mq_getattr(mqfd, &mqstat); |
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25 | if ( !status ) { |
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26 | printf( "mq_maxmsg: %d\n", mqstat.mq_maxmsg ); |
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27 | printf( "mq_msgsize: %d\n", mqstat.mq_msgsize ); |
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28 | printf( "mq_curmsgs: %d\n", mqstat.mq_curmsgs ); |
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29 | } else { |
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30 | perror( "Unable to get attributes on message queue" ); |
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31 | exit( 1 ); |
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32 | } |
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33 | |
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34 | /* this should delete it */ |
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35 | (void) mq_close( mqfd ); |
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36 | exit( 0 ); |
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37 | } |
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38 | |
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