12 int get_child_count(void);
13 int get_parent_count(void);
14 int get_process_count(void);
17 int run(const char *p, char *const argv[]);
18 int harvest_zombies(int pid);
19 int run_piped(const char *cmd, char *const argv[],
20 int *stdinfd, int *stdoutfd, int *stderrfd);
21 int run_piped_stream(const char *cmd, char *const argv[],
22 FILE **stdinf, FILE **stdoutf, FILE **stderrf);