Initial revision

1 files changed, 184 insertions, 0 deletions

diff --git a/proc/proc.h b/proc/proc.h
new file mode 100644
index 00000000..782f2afd
--- /dev/null
+++ b/proc/proc.h
@@ -0,0 +1,184 @@
+/* Process server definitions
+   Copyright (C) 1992, 1993, 1994 Free Software Foundation
+
+This file is part of the GNU Hurd.
+
+The GNU Hurd is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+The GNU Hurd is distributed in the hope that it will be useful, 
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with the GNU Hurd; see the file COPYING.  If not, write to
+the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
+
+/* Written by Michael I. Bushnell.  */
+
+#ifndef PROC_H_INCLUDED
+#define PROC_H_INCLUDED
+
+
+struct proc
+{
+  mach_port_t p_reqport;
+
+  /* List of members of a process group */
+  struct proc *p_gnext, **p_gprevp; /* process group */
+
+  /* Hash table pointers that point here */
+  void **p_pidhashloc;		/* by pid */
+  void **p_taskhashloc;		/* by task port */
+  void **p_porthashloc;		/* by request port */
+
+  /* Identification of this process */
+  task_t p_task;
+  pid_t p_pid;
+  struct login *p_login;
+  uid_t p_owner;
+  struct ids *p_id;
+  
+  /* Process hierarchy */
+  /* Every process is in the process hierarchy except processes
+     0 and 1.  Processes which have not had proc_child called
+     on their behalf are parented by 1. */
+  struct proc *p_parent;	/* parent process */
+  struct proc *p_ochild;	/* youngest child */
+  struct proc *p_sib, **p_prevsib; /* next youngest sibling */
+
+  /* Process group structure */
+  struct pgrp *p_pgrp;
+
+  /* Communication */
+  mach_port_t p_msgport;	/* send right */
+
+  /* Continuations */
+  union
+    {
+      struct wait_c
+	{
+	  mach_port_t reply_port;
+	  mach_msg_type_name_t reply_port_type;
+	  pid_t pid;
+	  int options;
+	} wait_c;
+      struct getmsgport_c
+	{
+	  mach_port_t reply_port;
+	  mach_msg_type_name_t reply_port_type;
+	  struct proc *msgp;
+	} getmsgport_c;
+    } p_continuation;
+  
+  /* Miscellaneous information */
+  int p_argv, p_envp;
+  int p_status;			/* to return via wait */
+
+  int p_exec:1;			/* has called proc_mark_exec */
+  int p_stopped:1;		/* has called proc_mark_stop */
+  int p_waited:1;		/* stop has been reported to parent */
+  int p_exiting:1;		/* has called proc_mark_exit */
+  int p_waiting:1;		/* blocked in wait */
+  int p_traced:1;		/* has called proc_mark_traced */
+  int p_nostopcld:1;		/* has called proc_mark_nostopchild */
+  int p_parentset:1;		/* has had a parent set with proc_child */
+  int p_deadmsg:1;		/* hang on requests for a message port */
+  int p_checkmsghangs:1;	/* someone is currently hanging on us */
+  int p_msgportwait:1;		/* blocked in getmsgport */
+  int p_noowner:1;		/* has no owner known */
+};
+
+typedef struct proc *pstruct_t;
+
+struct pgrp
+{
+  void **pg_hashloc;
+  struct proc *pg_plist;	/* member processes */
+  struct pgrp *pg_next, **pg_prevp; /* list of pgrps in session */
+  pid_t pg_pgid;
+  struct session *pg_session;
+  int pg_orphcnt;		/* number of non-orphaned processes */
+};
+
+struct session
+{
+  void **s_hashloc;
+  pid_t s_sid;
+  struct pgrp *s_pgrps;		/* list of member pgrps */
+  mach_port_t s_sessionid;	/* receive right */
+};
+
+struct login
+{
+  int l_refcnt;
+  char l_name[0];
+};
+
+struct ids
+{
+  int i_nuids, i_ngids;
+  uid_t *i_uids;
+  gid_t *i_gids;
+  int i_refcnt;
+};
+
+mach_port_t authserver;
+struct proc *self_proc;		/* process 0 (us) */
+struct proc *startup_proc;	/* process 1 (init) */
+
+mach_port_t request_portset;
+
+mach_port_t master_host_port;
+mach_port_t master_device_port;
+
+mach_port_t generic_port;	/* messages not related to a specific proc */
+
+
+/* Forward declarations */
+void complete_wait (struct proc *, int);
+int nextprime (int);
+int check_uid (struct proc *, uid_t);
+void addalltasks (void);
+void prociterate (void (*)(struct proc *, void *), void *);
+void count_up (void *);
+void store_pid (void *);
+void free_process (struct proc *);
+void panic (char *);
+int valid_task (task_t);
+int genpid ();
+void abort_getmsgport (struct proc *);
+int zombie_check_pid (pid_t);
+void check_message_dying (struct proc *, struct proc *);
+void message_port_dead (struct proc *);
+
+void add_proc_to_hash (struct proc *);
+void remove_proc_from_hash (struct proc *);
+void add_pgrp_to_hash (struct pgrp *);
+void add_session_to_hash (struct session *);
+void remove_session_from_hash (struct session *);
+void remove_pgrp_from_hash (struct pgrp *);
+
+struct proc *pid_find (int);
+struct proc *task_find (task_t);
+struct proc *task_find_nocreate (task_t);
+struct pgrp *pgrp_find (int);
+struct proc *reqport_find (mach_port_t);
+struct session *session_find (pid_t);
+
+struct proc *add_tasks (task_t);
+int pidfree (pid_t);
+
+struct proc *new_proc (task_t);
+
+void leave_pgrp (struct proc *);
+void join_pgrp (struct proc *);
+void boot_setsid (struct proc *);
+
+void process_has_exited (struct proc *);
+void alert_parent (struct proc *);
+void reparent_zombies (struct proc *);
+#endif