[Lldb-commits] [PATCH] Enable PipeWindows to support reading with timeout, and fix broken build of llgs.
ovyalov at google.com
Thu Dec 4 14:15:14 PST 2014
I'm thinking about having Pipe class as a base class with derived AnonymousPipe and NamedPipe.
AnonymousPipe will be almost replica of existing Pipe class with custom Open(OpenOptions opts) method.
NamedPipe will have following own methods:
eOpenOptionNonBlocking = (1u << 0), // Non-blocking reads
eOpenChildProcessesInherit = (1u << 1) // Child processes inherit
explicit NamedPipe(const char* name);
bool Create(); //mkfifo
bool Delete(); //Close() & unlink
bool OpenReader(OpenOptions opts);
bool OpenWriter(OpenOptions opts);
For named pipes we don't need to have both reader & writer opened in the same processes - so, that's why I think we may need separate open methods.
In order to read with timeout pipe should be opened in non-blocking mode - on Windows you may use PIPE_NOWAIT if such option is set.
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