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Support for converting OpenOptions to c_int on UNIX #74943

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withoutboats opened this issue Jul 30, 2020 · 1 comment · Fixed by #76110
Open

Support for converting OpenOptions to c_int on UNIX #74943

withoutboats opened this issue Jul 30, 2020 · 1 comment · Fixed by #76110
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A-io Area: std::io, std::fs, std::net and std::path C-feature-request Category: A feature request, i.e: not implemented / a PR. T-libs-api Relevant to the library API team, which will review and decide on the PR/issue.

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@withoutboats
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AFAICT, there's no public API for converting OpenOptions to c_int on UNIX platforms, meaning you cannot use an OpenOptions to open a file yourself using a lower level API from C. For example, this means that I cannot just re-use the OpenOptions type from std in ringbahn, which opens a file using io-uring instead of using the open syscall.

Some way under std::os::unix to convert OpenOptions to c_int would be helpful to avoid duplication. Ideally it would be a method on OpenOptionsExt, but I'm not sure how that could be non-breaking since there is no obvious default implementation. It may just have to be a free function.
@withoutboats withoutboats added T-libs-api Relevant to the library API team, which will review and decide on the PR/issue. A-io Area: std::io, std::fs, std::net and std::path C-feature-request Category: A feature request, i.e: not implemented / a PR. labels Jul 30, 2020
This was referenced Aug 30, 2020
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@bors bors closed this as completed in e0bc267 Sep 22, 2020
@Dylan-DPC-zz
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Reopening this because it is being reverted in #77090

@Dylan-DPC-zz Dylan-DPC-zz reopened this Sep 23, 2020
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A-io Area: std::io, std::fs, std::net and std::path C-feature-request Category: A feature request, i.e: not implemented / a PR. T-libs-api Relevant to the library API team, which will review and decide on the PR/issue.
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Function to convert OpenOptions to c_int
Function to convert OpenOptions to c_int
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@withoutboats @Dylan-DPC-zz