Commit f55ea05b authored by Committed by Daiki Ueno
Add facility to collect stderr of async subprocess
* src/w32.h (register_aux_fd): New function declaration. * src/w32.c (register_aux_fd): New function. * src/process.h (struct Lisp_Process): New member stderrproc. * src/process.c (PIPECONN_P): New macro. (PIPECONN1_P): New macro. (Fdelete_process, Fprocess_status, Fset_process_buffer) (Fset_process_filter, Fset_process_sentinel, Fstop_process) (Fcontinue_process): Handle pipe process specially. (create_process): Respect p->stderrproc. (Fmake_pipe_process): New function. (Fmake_process): Add new keyword argument :stderr. (wait_reading_process_output): Specially handle a pipe process when it gets an EOF. (syms_of_process): Register Qpipe and Smake_pipe_process. * doc/lispref/processes.texi (Asynchronous Processes): Document `make-pipe-process' and `:stderr' keyword of `make-process'. * lisp/subr.el (start-process): Suggest to use `make-process' handle standard error separately. * test/automated/process-tests.el (process-test-stderr-buffer) (process-test-stderr-filter): New tests. * etc/NEWS: Mention new process type `pipe' and its usage with the `:stderr' keyword of `make-process'.
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