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3e34d66577
Our implementation of pipe() must create non-inheritable handles for the reason that when a child process is started, there is no opportunity to close the unneeded pipe ends in the child (on POSIX this is done between fork() and exec()). Previously, we used the _pipe() function provided by Microsoft's C runtime (which creates inheritable handles) and then turned the handles into non-inheritable handles using the DuplicateHandle() API. Simplify the procedure by using the CreatePipe() API, which can create non-inheritable handles right from the beginning. Signed-off-by: Johannes Sixt <j6t@kdbg.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>