[patch][doc] Fix EXAMPLE in kqueue(2)
The error control was not properly implemented. "changelist" is const, hence
event.flags is never changed by the syscall.
PR: 196844
Reported by: eugen@
Reviewed by: PauAmma <pauamma@gundo.com>
Approved by: eugen@
Fixes: 8c231786f0
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@ -24,7 +24,7 @@
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.\"
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.\" $FreeBSD$
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.\"
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.Dd January 20, 2022
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.Dd April 13, 2022
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.Dt KQUEUE 2
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.Os
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.Sh NAME
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@ -742,8 +742,6 @@ main(int argc, char **argv)
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ret = kevent(kq, &event, 1, NULL, 0, NULL);
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if (ret == -1)
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err(EXIT_FAILURE, "kevent register");
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if (event.flags & EV_ERROR)
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errx(EXIT_FAILURE, "Event error: %s", strerror(event.data));
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for (;;) {
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/* Sleep until something happens. */
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@ -751,8 +749,12 @@ main(int argc, char **argv)
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if (ret == -1) {
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err(EXIT_FAILURE, "kevent wait");
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} else if (ret > 0) {
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if (tevent.flags & EV_ERROR)
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errx(EXIT_FAILURE, "Event error: %s", strerror(event.data));
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else
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printf("Something was written in '%s'\en", argv[1]);
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}
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}
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}
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}
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.Ed
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