topic Private Message Queue - Threadsafe? in MQX Software Solutions https://community.nxp.com/t5/MQX-Software-Solutions/Private-Message-Queue-Threadsafe/m-p/232124#M6345 <HTML><HEAD></HEAD><BODY><P>Hello,</P><P></P><P>I have 4 senders and only 1 receiver in my application, so I want to realize some sort of mailslot where I have N senders and 1 receiver.</P><P>Is it possible to realize this with only one message queue, that is created (with _msgq_open()) in the receiver and shared as extern variable with the other tasks or do I need one separate message for every task --&gt; 4 + 1 = 5 message queues?</P><P></P><P>When I refer to chapter "3.7.7.6 Using Private Message Queues to Receive Messages" of MQX-UG Rev. 3 it says:</P><P><EM>"<SPAN style="text-decoration: underline;">A task can send a message to any private message queue</SPAN>, but only the task that opened a private message</EM></P><P><EM>queue can receive messages from it. Only one task at a time can have the private message queue open."</EM></P><P></P><P>So I guess it should work with only one message queue object. What is your opinion?</P><P></P><P>BR Johannes</P></BODY></HTML> Wed, 27 Nov 2013 14:17:53 GMT johannestraxler 2013-11-27T14:17:53Z Private Message Queue - Threadsafe? https://community.nxp.com/t5/MQX-Software-Solutions/Private-Message-Queue-Threadsafe/m-p/232124#M6345 <HTML><HEAD></HEAD><BODY><P>Hello,</P><P></P><P>I have 4 senders and only 1 receiver in my application, so I want to realize some sort of mailslot where I have N senders and 1 receiver.</P><P>Is it possible to realize this with only one message queue, that is created (with _msgq_open()) in the receiver and shared as extern variable with the other tasks or do I need one separate message for every task --&gt; 4 + 1 = 5 message queues?</P><P></P><P>When I refer to chapter "3.7.7.6 Using Private Message Queues to Receive Messages" of MQX-UG Rev. 3 it says:</P><P><EM>"<SPAN style="text-decoration: underline;">A task can send a message to any private message queue</SPAN>, but only the task that opened a private message</EM></P><P><EM>queue can receive messages from it. Only one task at a time can have the private message queue open."</EM></P><P></P><P>So I guess it should work with only one message queue object. What is your opinion?</P><P></P><P>BR Johannes</P></BODY></HTML> Wed, 27 Nov 2013 14:17:53 GMT https://community.nxp.com/t5/MQX-Software-Solutions/Private-Message-Queue-Threadsafe/m-p/232124#M6345 johannestraxler 2013-11-27T14:17:53Z