Date: Tue, 10 Jul 2012 11:50:12 GMT From: Volodymyr Kostyrko <c.kworr@gmail.com> To: freebsd-bugs@FreeBSD.org Subject: Re: kern/149857: [kqueue] kqueue not reporting EOF under certain circumstances Message-ID: <201207101150.q6ABoCun099922@freefall.freebsd.org>
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The following reply was made to PR kern/149857; it has been noted by GNATS. From: Volodymyr Kostyrko <c.kworr@gmail.com> To: bug-followup@FreeBSD.org Cc: Subject: Re: kern/149857: [kqueue] kqueue not reporting EOF under certain circumstances Date: Tue, 10 Jul 2012 14:41:04 +0300 This is a multi-part message in MIME format. --------------050400060102030803040405 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Hi all. Long time no see... :) Here's a C sample of the same code. I was wrong initially, kqueue doesn't ignore EOF, it doesn't return it even if it was told to do so. Highlights: 1. When feeding data through pipe kqueue reports EOF. 2. When redirecting stdin from any file kqueue doesn't report EOF. -- Sphinx of black quartz judge my vow. --------------050400060102030803040405 Content-Type: text/plain; charset=UTF-8; name="test.c" Content-Transfer-Encoding: base64 Content-Disposition: attachment; filename="test.c" I2luY2x1ZGUgPHN5cy90eXBlcy5oPgojaW5jbHVkZSA8c3lzL2V2ZW50Lmg+CiNpbmNsdWRl IDxzeXMvdGltZS5oPgojaW5jbHVkZSA8c3RkaW8uaD4KI2luY2x1ZGUgPHN0cmluZy5oPgoK ZXh0ZXJuIEZJTEUgKnN0ZGVyciwgKnN0ZGluLCAqc3Rkb3V0OwoKaW50IG1haW4odm9pZCkg ewoJaW50IGtxID0ga3F1ZXVlKCksIGtldnM7CglzdHJ1Y3Qga2V2ZW50IGtldjsKCWNoYXIg YnVmZmVyWzQwOTZdOwoKCWlmKGtxID09IC0xKSB7CgkJcGVycm9yKCJGYXRhbCBlcnJvcjog Y2FuJ3QgaW5pdGlhbGlzZSBrcXVldWUiKTsKCQlyZXR1cm4oMSk7Cgl9CgoJRVZfU0VUKCZr ZXYsIGZpbGVubyhzdGRpbiksIEVWRklMVF9SRUFELCBFVl9BREQgfCBFVl9FTkFCTEUgfCBF Vl9FT0YsIDAsIDAsIE5VTEwpOwoJa2V2cyA9IGtldmVudChrcSwgJmtldiwgMSwgTlVMTCwg MCwgTlVMTCk7CgoJZm9yICg7OykgewoJCWtldnMgPSBrZXZlbnQoa3EsIE5VTEwsIDAsICZr ZXYsIDEsIE5VTEwpOwoJCXByaW50ZigiJWQgJWxkICVkICVsZCAlZFxuIiwga2V2LmZpbHRl ciwga2V2LmRhdGEsIGtldi5mbGFncywga2V2LmlkZW50LCBrZXYuZmZsYWdzKTsKCQlpZihr ZXYuZmlsdGVyID09IEVWRklMVF9SRUFEKSB7CgkJCWlmKGtldi5kYXRhID4gMCkgewoJCQkJ aWYoIWZnZXRzKGJ1ZmZlciwga2V2LmRhdGEsIHN0ZGluKSkgewoJCQkJCXByaW50ZigiaW5w dXQgZmFpbGVkXG4iKTsKCQkJCX0KCQkJfQoJCQlpZihrZXYuZmxhZ3MgPj4gMTUgPT0gMSkg ewoJCQkJRVZfU0VUKCZrZXYsIGZpbGVubyhzdGRpbiksIEVWRklMVF9SRUFELCBFVl9ERUxF VEUsIDAsIDAsIE5VTEwpOwoJCQkJa2V2cyA9IGtldmVudChrcSwgJmtldiwgMSwgTlVMTCwg MCwgTlVMTCk7CgkJCQlyZXR1cm4oMCk7CgkJCX0KCQl9Cgl9CgoJcmV0dXJuKDApOwp9Cg== --------------050400060102030803040405--
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