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Diffstat (limited to 'doc/lispref/internals.texi')
| -rw-r--r-- | doc/lispref/internals.texi | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/doc/lispref/internals.texi b/doc/lispref/internals.texi index 442f6d156b6..0c24dac7775 100644 --- a/doc/lispref/internals.texi +++ b/doc/lispref/internals.texi @@ -2022,6 +2022,20 @@ variable values and buffer content may have been modified in arbitrary ways. @end deftypefn +@anchor{open_channel} +@deftypefun int open_channel (emacs_env *@var{env}, emacs_value @var{pipe_process}) +This function, which is available since Emacs 27, opens a channel to +an existing pipe process. @var{pipe_process} must refer to an +existing pipe process created by @code{make-pipe-process}. @ref{Pipe +Processes}. If successful, the return value will be a new file +descriptor that you can use to write to the pipe. Unlike all other +module functions, you can use the returned file descriptor from +arbitrary threads, even if no module environment is active. You can +use the @code{write} function to write to the file descriptor. Once +done, close the file descriptor using @code{close}. @ref{Low-Level +I/O,,,libc}. +@end deftypefun + @node Module Nonlocal @subsection Nonlocal Exits in Modules @cindex nonlocal exits, in modules |