aio updates to avoid stdio #266
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This changes especially makes buffered I/O work with non-blocking channels. - separate read and write buffering - support for timeout on blocking read - read/write on same channel in event loop with buffering - read buffer is the same across read, gets, copyto - autoflush non-blocking writes via event loop - copyto can now copy to any filehandle-like command - add some copyto tests Signed-off-by: Steve Bennett <steveb@workware.net.au>
Now 'constraint cmd|package' is like 'needs' but sets a constraint The command to 'needs cmd' and 'constraint cmd' can now take a subcommand to check. Add 'constraint|needs eval|expr' to make some constraint checks simpler. Signed-off-by: Steve Bennett <steveb@workware.net.au>
AIO_KEEPOPEN won't close a channel (such as stdin, stdout) when the command is deleted/replaced, but an explicit close will still close the channel. Signed-off-by: Steve Bennett <steveb@workware.net.au>
This is simpler now that we can write to a non-blocking socket even if it is "full". Signed-off-by: Steve Bennett <steveb@workware.net.au>
Signed-off-by: Steve Bennett <steveb@workware.net.au>
This changes especially makes buffered I/O work with non-blocking channels. - separate read and write buffering - support for timeout on blocking read - read/write on same channel in event loop with buffering - read buffer is the same across read, gets, copyto - autoflush non-blocking writes via event loop - copyto can now copy to any filehandle-like command - add some copyto tests Signed-off-by: Steve Bennett <steveb@workware.net.au>
Signed-off-by: Steve Bennett <steveb@workware.net.au>
socket ?-noclose? ... open filename ?-noclose? ... Normally Jim will set O_CLOEXEC on all files and sockets that are opened however sometimes it is desirable to keep file descriptors open for child processes. The -noclose flags does this (on supported platforms). Signed-off-by: Steve Bennett <steveb@workware.net.au>
Signed-off-by: Steve Bennett <steveb@workware.net.au>
And also fix a minor bug that if unable to format the socket address the file descriptor would be left open. Signed-off-by: Steve Bennett <steveb@workware.net.au>
To open, socket and accept Also document aio getfd Signed-off-by: Steve Bennett <steveb@workware.net.au>
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Adds timeouts on blocking reads, separate read and write buffering, autoflush for writes on nonblocking channels.
Also adds -noclose to avoid close-on-exec