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| author | Keir Mierle <keir@google.com> | 2020-11-06 14:04:00 -0800 |
|---|---|---|
| committer | CQ Bot Account <pigweed-scoped@luci-project-accounts.iam.gserviceaccount.com> | 2020-11-07 01:17:28 +0000 |
| commit | 6909f18e6b7a710743dce4b6fe8005a8c1cf6365 (patch) | |
| tree | 0cb7609e431bfc8d7de23e46a6afe164a779f31c /pw_sys_io_stdio | |
| parent | 878bd196fe858f85edbb1dd6a992998c37de343c (diff) | |
| download | pigweed-6909f18e6b7a710743dce4b6fe8005a8c1cf6365.tar.gz | |
pw_sys_io: Add TryReadByte(byte* dest) function
This adds a non-blocking version of ReadByte() that enables writing, for
example, a superloop that combines custom processing simultaneously with
byte input handling for the RPC subsystem.
Change-Id: I9cb1e6ae8c944ca7cdff6d4bff101ac52e80b53a
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/23980
Reviewed-by: Armando Montanez <amontanez@google.com>
Commit-Queue: Keir Mierle <keir@google.com>
Diffstat (limited to 'pw_sys_io_stdio')
| -rw-r--r-- | pw_sys_io_stdio/sys_io.cc | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/pw_sys_io_stdio/sys_io.cc b/pw_sys_io_stdio/sys_io.cc index 04ab9b038..53c9d5ebc 100644 --- a/pw_sys_io_stdio/sys_io.cc +++ b/pw_sys_io_stdio/sys_io.cc @@ -31,6 +31,11 @@ Status ReadByte(std::byte* dest) { return Status::Ok(); } +Status TryReadByte(std::byte*) { + // TryReadByte() is not (yet) supported on hosts. + return Status::Unimplemented(); +} + Status WriteByte(std::byte b) { if (std::putchar(static_cast<char>(b)) == EOF) { return Status::Internal(); |