testing: add a utility function to wait for file create
This is similar to `tests/testlib/wait-on-file`, but for the python code
Differential Revision: https://phab.mercurial-scm.org/D10476
/*
* Utilities about process handling - signal and subprocess (ex. pager)
*
* Copyright (c) 2011 Yuya Nishihara <yuya@tcha.org>
*
* This software may be used and distributed according to the terms of the
* GNU General Public License version 2 or any later version.
*/
#ifndef PROCUTIL_H_
#define PROCUTIL_H_
#include <unistd.h>
void restoresignalhandler(void);
void setupsignalhandler(pid_t pid, pid_t pgid);
pid_t setuppager(const char *pagercmd, const char *envp[]);
void waitpager(void);
#endif /* PROCUTIL_H_ */