#pragma prototyped

#ifndef _PSS_H

#define _PSS_H 1

#include <ast.h>

#define PSS_VERSION 20101201L

#define PSS_ALL (1<<0) /* match all */

#define PSS_ATTACHED (1<<1) /* match attached */

#define PSS_DETACHED (1<<2) /* match detached */

#define PSS_LEADER (1<<3) /* match group leaders */

#define PSS_NOLEADER (1<<4) /* no group leaders */

#define PSS_PS (1<<5) /* force the ps method */

#define PSS_TTY (1<<6) /* match disc.tty */

#define PSS_UID (1<<7) /* match disc.uid */

#define PSS_UNMATCHED (1<<8) /* return unmatched too */

#define PSS_VERBOSE (1<<9) /* report all errors */

#define PSS_ANCESTOR (1<<0) /* ancestor matched */

#define PSS_CHILD (1<<1) /* on children chain */

#define PSS_EXPLICIT (1<<2) /* explicit */

#define PSS_MATCHED (1<<3) /* matched */

#define PSS_PARENT (1<<4) /* on parent chain */

#define PSS_FLAGS 0xff

#define PSS_NODEV ((Pss_dev_t)(-1))

#define PSS_SCAN 0

#define PSS_ZOMBIE 'Z'

#define PSS_addr (1<<0)

#define PSS_args (1<<1)

#define PSS_command (1<<2)

#define PSS_cpu (1<<3)

#define PSS_flags (1<<4)

#define PSS_gid (1<<5)

#define PSS_job (1<<6)

#define PSS_nice (1<<7)

#define PSS_npid (1<<8)

#define PSS_pgrp (1<<9)

#define PSS_pid (1<<10)

#define PSS_ppid (1<<11)

#define PSS_pri (1<<12)

#define PSS_proc (1<<13)

#define PSS_refcount (1<<14)

#define PSS_rss (1L<<15)

#define PSS_sched (1L<<16)

#define PSS_sid (1L<<17)

#define PSS_size (1L<<18)

#define PSS_start (1L<<19)

#define PSS_state (1L<<20)

#define PSS_tgrp (1L<<21)

#define PSS_time (1L<<22)

#define PSS_tty (1L<<23)

#define PSS_uid (1L<<24)

#define PSS_wchan (1L<<25)

#define PSS_all (PSS_addr|PSS_args|PSS_command|PSS_cpu|PSS_flags|\

PSS_gid|PSS_job|PSS_nice|PSS_npid|PSS_pgrp|PSS_pid|\

PSS_ppid|PSS_pri|PSS_proc|PSS_refcount|PSS_rss|\

PSS_sched|PSS_sid|PSS_size|PSS_start|PSS_state|\

PSS_tgrp|PSS_time|PSS_tty|PSS_uid|PSS_wchan)

#define PSS_match (PSS_gid|PSS_pgrp|PSS_sid|PSS_tty|PSS_uid)

#undef hz /* who gets the prize for this? */

typedef long Pss_dev_t;

typedef long Pss_id_t;

struct Pss_s; typedef struct Pss_s Pss_t;

typedef struct Pssent_s

{

int pss;

void* addr;

void* wchan;

char* args;

char* command;

char* sched;

char* ttyname;

Pss_dev_t tty;

size_t rss;

size_t size;

time_t start;

unsigned long time;

Pss_id_t job;

Pss_id_t npid;

Pss_id_t pid;

Pss_id_t pgrp;

Pss_id_t ppid;

Pss_id_t sid;

Pss_id_t tgrp;

Pss_id_t gid;

Pss_id_t uid;

long nice;

long pri;

int cpu;

int flags;

int proc;

int refcount;

int state;

} Pssent_t;

typedef struct Pssdata_s

{

struct Pssdata_s* next;

unsigned long data;

} Pssdata_t;

typedef struct Pssmatch_s

{

struct Pssmatch_s* next;

unsigned long field;

struct Pssdata_s* data;

} Pssmatch_t;

typedef struct Pssdisc_s

{

unsigned long version; /* interface version */

unsigned long fields; /* PSS_[a-z]* field requests */

unsigned long flags; /* PSS_[A-Z]* flags */

char* command; /* caller command path */

Pss_dev_t tty; /* PSS_TTY match value */

Pss_id_t uid; /* PSS_UID match value */

Pssmatch_t* match; /* match these fields */

Error_f errorf; /* error function */

} Pssdisc_t;

typedef struct Pssmeth_s

{

const char* name; /* method name */

const char* usage; /* method usage */

unsigned long fields; /* supported fields */

int (*initf)(Pss_t*);

int (*readf)(Pss_t*, Pss_id_t);

int (*partf)(Pss_t*, Pssent_t*);

int (*fullf)(Pss_t*, Pssent_t*);

Pss_dev_t (*ttydevf)(Pss_t*, const char*);

char* (*ttynamef)(Pss_t*, Pssent_t*);

Pss_dev_t (*ttymapf)(Pss_t*, Pss_dev_t);

int (*donef)(Pss_t*);

} Pssmeth_t;

struct Pss_s

{

const char* id; /* library id string */

Pssmeth_t* meth; /* method */

#ifdef _PSS_PRIVATE_

_PSS_PRIVATE_

#endif

};

#define pssinit(d,c,e) (memset(d,0,sizeof(*(d))),(d)->version=PSS_VERSION,(d)->command=(char*)(c),(d)->errorf=(Error_f)(e))

extern Pss_t* pssopen(Pssdisc_t*);

extern Pssent_t* pssread(Pss_t*, Pss_id_t);

extern Pssent_t* psssave(Pss_t*, Pssent_t*);

extern int pssclose(Pss_t*);

extern int pssttyadd(Pss_t*, const char*, Pss_dev_t);

extern Pss_dev_t pssttydev(Pss_t*, const char*);

extern char* pssttyname(Pss_t*, Pssent_t*);

#endif