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Because you are using Qt in particular there is something to be said for not solving this problem yourself. Instead, create a single object that owns the stream or file and offers a writeLine slot...
Answer
#1: Initial revision
by
dmckee
·
2021-04-24T19:37:33Z (over 3 years ago)
Because you are using Qt in particular there is something to be said for *not solving this problem yourself*. Instead, create a single object that owns the stream or file and offers a `writeLine` slot. In the simplest case the signature might be `writeLine(const QString & line)`. Then your threads simple signal the owner with the data they want to write and the Qt engine takes care of the locking for you.