#ifndef process_h
#define process_h

#include <stdio.h>
#include <sys/types.h>
#include <sys/wait.h>

pid_t start_process(const char *name, int (*proc_func)(), void *user_arg, FILE **fdin, FILE **fdout);
pid_t start_system_process(const char *name, const char *command, FILE **fdin, FILE **fdout);

/* returns command's return status (see waitpid(2)) */
int run_system_process(const char *name, const char *command);

pid_t create_pipe_process(const char *name,
                          FILE *src,
                          FILE *dest,
                          const char *alreadyread,
                          size_t alreadyread_len);

int wait_for_process(int pid);

void kill_all_processes();

#endif