[runtime] Clarify redirect_io behaviour - #7409
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Change `redirect_io` to be easier to re-use correctly, i.e. returning the file descriptor (instead of `0`). Comment why the file descriptor are never released. It makes sense but it's not obvious (even less in `redirect_io`) without comments. Using static fields also makes it easier for static analysis (locals are easier to process). Finally reuse, mostly, the same string for the error message, i.e. ``` $ strings runtime//.libs/mac/libxammac.x86_64.dylib | grep "Could not redirect" Xamarin.Mac: Could not redirect %s to `%s': %s ``` versus ``` $ strings runtime//.libs/mac/libxammac.x86_64.dylib | grep "Could not redirect" Xamarin.Mac: Could not redirect stdout to `%s': %s Xamarin.Mac: Could not redirect stderr to `%s': %s ```
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Build failure 🔥 Build failed 🔥 |
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build |
rolfbjarne
approved these changes
Nov 12, 2019
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Build failure Test results20 tests failed, 67 tests passed.Failed tests
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many, many HE0038 w/watchOS -> https://github.com/xamarin/maccore/issues/581 |
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Change
redirect_ioto be easier to re-use correctly, i.e. returning thefile descriptor (instead of
0).Comment why the file descriptor are never released. It makes sense but
it's not obvious (even less in
redirect_io) without comments.Using static fields also makes it easier for static analysis (locals are
easier to process).
Finally reuse, mostly, the same string for the error message, i.e.
versus