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Diffstat (limited to 'doc/lispref/processes.texi')
| -rw-r--r-- | doc/lispref/processes.texi | 22 |
1 files changed, 19 insertions, 3 deletions
diff --git a/doc/lispref/processes.texi b/doc/lispref/processes.texi index 90c42156372..8a9cb2a8f88 100644 --- a/doc/lispref/processes.texi +++ b/doc/lispref/processes.texi @@ -1047,6 +1047,19 @@ This function returns a list of all processes that have not been deleted. @end smallexample @end defun +@defun num-processors &optional query +This function returns the number of processors, a positive integer. +Each usable thread execution unit counts as a processor. +By default, the count includes the number of available processors, +which you can override by setting the +@url{https://www.openmp.org/spec-html/5.1/openmpse59.html, +@env{OMP_NUM_THREADS} environment variable of OpenMP}. +If the optional argument @var{query} is @code{current}, +this function ignores @env{OMP_NUM_THREADS}; +if @var{query} is @code{all}, this function also counts processors +that are on the system but are not available to the current process. +@end defun + @defun get-process name This function returns the process named @var{name} (a string), or @code{nil} if there is none. The argument @var{name} can also be a @@ -1766,9 +1779,12 @@ or more batches of output; one way to do this is to insert the received text into a temporary buffer, which can then be searched. @defun set-process-filter process filter -This function gives @var{process} the filter function @var{filter}. If -@var{filter} is @code{nil}, it gives the process the default filter, -which inserts the process output into the process buffer. +This function gives @var{process} the filter function @var{filter}. +If @var{filter} is @code{nil}, it gives the process the default +filter, which inserts the process output into the process buffer. If +@var{filter} is @code{t}, Emacs stops accepting output from the +process, unless it's a network server process that listens for +incoming connections. @end defun @defun process-filter process |