#include <sched.h>
#include <signal.h>
#include <sys/types.h>

typedef struct posix_spawnattr posix_spawnattr_t;

enum {
	POSIX_SPAWN_RESETIDS,
	POSIX_SPAWN_SETPGROUP,
	POSIX_SPAWN_SETSCHEDPARAM,
	POSIX_SPAWN_SETSCHEDULER,
	POSIX_SPAWN_SETSIGDEF,
	POSIX_SPAWN_SETSIGMASK,
};

int posix_spawnattr_init(posix_spawnattr_t *attrp);
int posix_spawnattr_getflags(const posix_spawnattr_t *restrict attrp, short *restrict flags);
int posix_spawnattr_setflags(posix_spawnattr_t *attrp, short flags);
int posix_spawnattr_getpgroup(const posix_spawnattr_t *restrict attrp, pid_t *restrict pgroup);
int posix_spawnattr_setpgroup(posix_spawnattr_t *attrp, pid_t pgroup);
int posix_spawnattr_getschedparam(const posix_spawnattr_t *restrict attrp, struct sched_param *restrict schedparam);
int posix_spawnattr_setschedparam(posix_spawnattr_t *restrict attrp, const struct sched_param *restrict schedparam);
int posix_spawnattr_getschedpolicy(const posix_spawnattr_t *restrict attrp, int *restrict schedpolicy);
int posix_spawnattr_setschedpolicy(posix_spawnattr_t *attrp, int schedpolicy);
int posix_spawnattr_getsigdefault(const posix_spawnattr_t *restrict attrp, sigset_t *restrict sigdefault);
int posix_spawnattr_setsigdefault(posix_spawnattr_t *restrict attrp, const sigset_t *restrict sigdefault);
int posix_spawnattr_getsigmask(const posix_spawnattr_t *restrict attrp, sigset_t *restrict sigmask);
int posix_spawnattr_setsigmask(posix_spawnattr_t *restrict attrp, const sigset_t *restrict sigmask);
int posix_spawnattr_destroy(posix_spawnattr_t *attrp);

typedef struct posix_spawn_file_actions posix_spawn_file_actions_t;

int posix_spawn_file_actions_init(posix_spawn_file_actions_t *file_actions);
int posix_spawn_file_actions_adddup2(posix_spawn_file_actions_t *file_actions, int filedes, int newfiledes);
int posix_spawn_file_actions_addclose(posix_spawn_file_actions_t *file_actions, int filedes);
int posix_spawn_file_actions_addopen(posix_spawn_file_actions_t *restrict file_actions, int filedes, const char *restrict path, int oflag, mode_t mode);
int posix_spawn_file_actions_destroy(posix_spawn_file_actions_t *file_actions);

int posix_spawn(pid_t *restrict, const char *restrict, const posix_spawn_file_actions_t *, const posix_spawnattr_t *restrict, char *const argv[restrict], char *const envp[restrict]);
int posix_spawnp(pid_t *restrict, const char *restrict, const posix_spawn_file_actions_t *, const posix_spawnattr_t *restrict, char *const argv[restrict], char *const envp[restrict]);