Difference between revisions of "MQUNLINK()"
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==Purpose== | ==Purpose== | ||
Function to remove a message queue | Function to remove a message queue | ||
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==Syntax== | ==Syntax== | ||
MQUNLINK(<expC>) | MQUNLINK(<expC>) | ||
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==See Also== | ==See Also== | ||
| − | [[MQCLOSE()]], [[MQCREATE()]], [[MQCURMSGS()]], [[MQOPEN()]], [[MQRECEIVE()]], [[MQSEND()]], [[XML_DECODE()]], [[XML_ENCODE()]], [[XML_GATHER()]], [[XML_SCATTER()]] | + | [[JSON_DECODE()]], [[JSON_DECODE_FILE()]], [[JSON_ENCODE()]], [[MQCLOSE()]], [[MQCREATE()]], [[MQCURMSGS()]], [[MQOPEN()]], [[MQRECEIVE()]], [[MQSEND()]], [[MQSENDMESSAGE()]], [[XML_DECODE()]], [[XML_ENCODE()]], [[XML_GATHER()]], [[XML_SCATTER()]] |
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==Description== | ==Description== | ||
The MQUNLINK() function is used to remove a message queue. The <expC> is the name of the queue. It returns .T. (true) if the queue is removed successfully. If an error occurs and it is unable to remove the queue, it returns .F. (false) and the ERRNO() function can be checked to determine the error. | The MQUNLINK() function is used to remove a message queue. The <expC> is the name of the queue. It returns .T. (true) if the queue is removed successfully. If an error occurs and it is unable to remove the queue, it returns .F. (false) and the ERRNO() function can be checked to determine the error. | ||
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==Example== | ==Example== | ||
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</code> | </code> | ||
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[[Category:Documentation]] | [[Category:Documentation]] | ||
[[Category:Functions]] | [[Category:Functions]] | ||
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[[Category:Messaging Functions]] | [[Category:Messaging Functions]] | ||
[[Category:Lianja VFP Extensions]] | [[Category:Lianja VFP Extensions]] | ||
[[Category:VFP Function Extensions]] | [[Category:VFP Function Extensions]] | ||
Latest revision as of 04:06, 30 March 2017
Contents
Purpose
Function to remove a message queue
Syntax
MQUNLINK(<expC>)
See Also
JSON_DECODE(), JSON_DECODE_FILE(), JSON_ENCODE(), MQCLOSE(), MQCREATE(), MQCURMSGS(), MQOPEN(), MQRECEIVE(), MQSEND(), MQSENDMESSAGE(), XML_DECODE(), XML_ENCODE(), XML_GATHER(), XML_SCATTER()
Description
The MQUNLINK() function is used to remove a message queue. The <expC> is the name of the queue. It returns .T. (true) if the queue is removed successfully. If an error occurs and it is unable to remove the queue, it returns .F. (false) and the ERRNO() function can be checked to determine the error.
Example
// Open up the queue for read/write access mqdes=mqcreate("/myqueue2", 2) if (mqdes < 0) messagebox(strerror()+",errno="+alltrim(str(error()))) return endif // send a message to the queue rc = mqsend(mqdes, "Test message") if (rc < 0) messagebox(strerror()+",errno="+alltrim(str(error()))) return endif // close the queue mqclose(mqdes) // remove the queue rc = mqremove("/myqueue2") if (rc < 0) messagebox(strerror()+",errno="+alltrim(str(error()))) return endif
