On 2025年08月08日, Askar Safin <safinaskar@xxxxxxxxxxxx> wrote: > > If there are no messages in the message queue, > > read(2) will return no data and errno will be set to ENODATA. > > If the buf argument to read(2) is not large enough to contain the message, > > read(2) will return no data and errno will be set to EMSGSIZE. > > read(2) will return -1 in these cases? If yes, then, please, write this. Yes (well, the syscall returns -EMSGSIZE). I'll try to add a note without making the paragraph too wordy... -- Aleksa Sarai Senior Software Engineer (Containers) SUSE Linux GmbH https://www.cyphar.com/
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