@c -*- mode: texinfo -*-
-@deftypefn Extension {struct pex_obj *} pex_init (int @var{flags}, const char *@var{pname}, const char *@var{tempbase})
+@deftypefn Extension {struct pex_obj *} pex_init (int @var{flags}, @
+ const char *@var{pname}, const char *@var{tempbase})
Prepare to execute one or more programs, with standard output of each
program fed to standard input of the next. This is a system
@end deftypefn
-@deftypefn Extension {const char *} pex_run (struct pex_obj *@var{obj}, int @var{flags}, const char *@var{executable}, char * const *@var{argv}, const char *@var{outname}, const char *@var{errname}, int *@var{err})
+@deftypefn Extension {const char *} pex_run (struct pex_obj *@var{obj}, @
+ int @var{flags}, const char *@var{executable}, char * const *@var{argv}, @
+ const char *@var{outname}, const char *@var{errname}, int *@var{err})
Execute one program in a pipeline. On success this returns
@code{NULL}. On failure it returns an error message, a statically
@vindex PEX_BINARY_INPUT
@vindex PEX_BINARY_OUTPUT
+@vindex PEX_BINARY_ERROR
@item PEX_BINARY_INPUT
@itemx PEX_BINARY_OUTPUT
-The standard input (output) of the program should be read (written) in
+@itemx PEX_BINARY_ERROR
+The standard input (output or error) of the program should be read (written) in
binary mode rather than text mode. These flags are ignored on systems
which do not distinguish binary mode and text mode, such as Unix. For
proper behavior these flags should match appropriately---a call to
@code{pex_run} using @code{PEX_BINARY_OUTPUT} should be followed by a
call using @code{PEX_BINARY_INPUT}.
+
+@vindex PEX_STDERR_TO_PIPE
+@item PEX_STDERR_TO_PIPE
+Send the program's standard error to a pipe, if possible. This flag
+cannot be specified together with @code{PEX_STDERR_TO_STDOUT}. This
+flag can be specified only on the last program in pipeline.
+
@end table
@var{executable} is the program to execute. @var{argv} is the set of
@end deftypefn
-@deftypefn Extension {const char *} pex_run_in_environment (struct pex_obj *@var{obj}, int @var{flags}, const char *@var{executable}, char * const *@var{argv}, char * const *@var{env}, int @var{env_size}, const char *@var{outname}, const char *@var{errname}, int *@var{err})
+@deftypefn Extension {const char *} pex_run_in_environment (struct pex_obj *@var{obj}, @
+ int @var{flags}, const char *@var{executable}, char * const *@var{argv}, @
+ char * const *@var{env}, int @var{env_size}, const char *@var{outname}, @
+ const char *@var{errname}, int *@var{err})
Execute one program in a pipeline, permitting the environment for the
program to be specified. Behaviour and parameters not listed below are
@end deftypefn
-@deftypefn Extension {FILE *} pex_input_file (struct pex_obj *@var{obj}, int @var{flags}, const char *@var{in_name})
+@deftypefn Extension {FILE *} pex_input_file (struct pex_obj *@var{obj}, @
+ int @var{flags}, const char *@var{in_name})
Return a stream for a temporary file to pass to the first program in
the pipeline as input.
@code{PEX_BINARY_OUTPUT} in @var{flags} has no effect on Unix.
@end deftypefn
-@deftypefn Extension {FILE *} pex_input_pipe (struct pex_obj *@var{obj}, int @var{binary})
+@deftypefn Extension {FILE *} pex_input_pipe (struct pex_obj *@var{obj}, @
+ int @var{binary})
Return a stream @var{fp} for a pipe connected to the standard input of
the first program in the pipeline; @var{fp} is opened for writing.
@end deftypefn
-@deftypefn Extension {FILE *} pex_read_output (struct pex_obj *@var{obj}, int @var{binary})
+@deftypefn Extension {FILE *} pex_read_output (struct pex_obj *@var{obj}, @
+ int @var{binary})
Returns a @code{FILE} pointer which may be used to read the standard
output of the last program in the pipeline. When this is used,
@end deftypefn
-@deftypefn Extension int pex_get_status (struct pex_obj *@var{obj}, int @var{count}, int *@var{vector})
+@deftypefn Extension {FILE *} pex_read_err (struct pex_obj *@var{obj}, @
+ int @var{binary})
+
+Returns a @code{FILE} pointer which may be used to read the standard
+error of the last program in the pipeline. When this is used,
+@code{PEX_LAST} should not be used in a call to @code{pex_run}. After
+this is called, @code{pex_run} may no longer be called with the same
+@var{obj}. @var{binary} should be non-zero if the file should be
+opened in binary mode. Don't call @code{fclose} on the returned file;
+it will be closed by @code{pex_free}.
+
+@end deftypefn
+
+
+@deftypefn Extension int pex_get_status (struct pex_obj *@var{obj}, @
+ int @var{count}, int *@var{vector})
Returns the exit status of all programs run using @var{obj}.
@var{count} is the number of results expected. The results will be
@end deftypefn
-@deftypefn Extension int pex_get_times (struct pex_obj *@var{obj}, int @var{count}, struct pex_time *@var{vector})
+@deftypefn Extension int pex_get_times (struct pex_obj *@var{obj}, @
+ int @var{count}, struct pex_time *@var{vector})
Returns the process execution times of all programs run using
@var{obj}. @var{count} is the number of results expected. The
@deftypefn Extension void pex_free (struct pex_obj @var{obj})
-Clean up and free all data associated with @var{obj}.
+Clean up and free all data associated with @var{obj}. If you have not
+yet called @code{pex_get_times} or @code{pex_get_status}, this will
+try to kill the subprocesses.
@end deftypefn
-@deftypefn Extension {const char *} pex_one (int @var{flags}, const char *@var{executable}, char * const *@var{argv}, const char *@var{pname}, const char *@var{outname}, const char *@var{errname}, int *@var{status}, int *@var{err})
+@deftypefn Extension {const char *} pex_one (int @var{flags}, @
+ const char *@var{executable}, char * const *@var{argv}, @
+ const char *@var{pname}, const char *@var{outname}, const char *@var{errname}, @
+ int *@var{status}, int *@var{err})
An interface to permit the easy execution of a
single program. The return value and most of the parameters are as
@end deftypefn
-@deftypefn Extension int pexecute (const char *@var{program}, char * const *@var{argv}, const char *@var{this_pname}, const char *@var{temp_base}, char **@var{errmsg_fmt}, char **@var{errmsg_arg}, int @var{flags})
+@deftypefn Extension int pexecute (const char *@var{program}, @
+ char * const *@var{argv}, const char *@var{this_pname}, @
+ const char *@var{temp_base}, char **@var{errmsg_fmt}, @
+ char **@var{errmsg_arg}, int @var{flags})
This is the old interface to execute one or more programs. It is
still supported for compatibility purposes, but is no longer
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