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Questions tagged [msgrcv]

A system call used to receive messages from a message queue in Linux. Similarly, Msgsnd() is the respective system call used to send messages. Use this tag for questions related to the system call msgrcv()

A system call used to receive messages from a message queue in Linux. Similarly, Msgsnd() is the respective system call used to send messages. Use this tag for questions related to the system call msgrcv()

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read dynamic length content using msgrcv

I use msgrcv function to read message from message queue. It works fine when I read known length data. Some cases my message length is variable. In such How can i allocate only require amount of memory and read the message from message queue…
Pavunkumar
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msgrcv getting blank messages

I have two programs that send and receives messages back and forth from each other via IPC queues. However, sometimes the msgrcv function will get a blank message instead of receiving what was actually sent through the queue. I've commented out a…
Zac
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How to fix string declaration error in scope

I'm trying to run an interprocess communication program but it says string is not declared in the scope as is and when I add #inlcude I get an error that says: receiver.cpp:25:35: error: invalid conversion from ‘char*’ to ‘int’ [-fpermissive] …
CoderInNeed
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Invalid argument on msgrcv in c

#include #include #include #include #include #include #include #include #include struct msgbuf { long mtype; /* type of…
duca
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asking about msgrcv , does not work for accept messages accourding priority

this is my code and in the last part,msgrecv does not accept the messages from the queue accourding the correct preiority , eg: 10 is most important to accept then type=20 then type=30 ... that is my goal is to accept messages in this manner ... …
ak ak
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