/* Common code for executing a program in a sub-process.
- Copyright (C) 2005 Free Software Foundation, Inc.
+ Copyright (C) 2005, 2010 Free Software Foundation, Inc.
Written by Ian Lance Taylor <ian@airs.com>.
This file is part of the libiberty library.
int outname_allocated;
int p[2];
int toclose;
- long pid;
+ pid_t pid;
in = -1;
out = -1;
goto error_exit;
++obj->count;
- obj->children = XRESIZEVEC (long, obj->children, obj->count);
+ obj->children = XRESIZEVEC (pid_t, obj->children, obj->count);
obj->children[obj->count - 1] = pid;
return NULL;
if (o < 0 || o == STDIN_FILE_NO)
return NULL;
obj->read_err = obj->funcs->fdopenr (obj, o, binary);
+ obj->stderr_pipe = -1;
return obj->read_err;
}
void
pex_free (struct pex_obj *obj)
{
+ /* Close pipe file descriptors corresponding to child's stdout and
+ stderr so that the child does not hang trying to output something
+ while we're waiting for it. */
if (obj->next_input >= 0 && obj->next_input != STDIN_FILE_NO)
obj->funcs->close (obj, obj->next_input);
+ if (obj->stderr_pipe >= 0 && obj->stderr_pipe != STDIN_FILE_NO)
+ obj->funcs->close (obj, obj->stderr_pipe);
+ if (obj->read_output != NULL)
+ fclose (obj->read_output);
+ if (obj->read_err != NULL)
+ fclose (obj->read_err);
/* If the caller forgot to wait for the children, we do it here, to
avoid zombies. */
free (obj->status);
if (obj->time != NULL)
free (obj->time);
- if (obj->read_output != NULL)
- fclose (obj->read_output);
- if (obj->read_err != NULL)
- fclose (obj->read_err);
if (obj->remove_count > 0)
{