ac437c3e0c
constructor. * pinfo.h (winpids::winpids): Remove default setting. * fhandler_fifo.cc (fhandler_fifo::open_not_mine): Accommodate removal of default setting. * fhandler_proc.cc (fhandler_proc::readdir): Ditto.
260 lines
6.9 KiB
C++
260 lines
6.9 KiB
C++
/* pinfo.h: process table info
|
|
|
|
Copyright 2000, 2001, 2002, 2003, 2004, 2005 Red Hat, Inc.
|
|
|
|
This file is part of Cygwin.
|
|
|
|
This software is a copyrighted work licensed under the terms of the
|
|
Cygwin license. Please consult the file "CYGWIN_LICENSE" for
|
|
details. */
|
|
|
|
#ifndef _PINFO_H
|
|
#define _PINFO_H
|
|
#include <sys/resource.h>
|
|
#include "thread.h"
|
|
|
|
struct commune_result
|
|
{
|
|
char *s;
|
|
int n;
|
|
HANDLE handles[2];
|
|
};
|
|
|
|
enum picom
|
|
{
|
|
PICOM_CMDLINE = 1,
|
|
PICOM_FIFO = 2,
|
|
PICOM_CWD = 3,
|
|
PICOM_ROOT = 4,
|
|
PICOM_FDS = 5,
|
|
PICOM_FD = 6,
|
|
PICOM_PIPE_FHANDLER = 7
|
|
};
|
|
|
|
#define EXITCODE_SET 0x80000000
|
|
#define EXITCODE_NOSET 0x40000000
|
|
|
|
class fhandler_pipe;
|
|
|
|
class _pinfo
|
|
{
|
|
public:
|
|
/* Cygwin pid */
|
|
pid_t pid;
|
|
|
|
/* Various flags indicating the state of the process. See PID_
|
|
constants below. */
|
|
DWORD process_state;
|
|
|
|
DWORD exitcode; /* set when process exits */
|
|
|
|
#define PINFO_REDIR_SIZE ((char *) &myself.procinfo->exitcode - (char *) myself.procinfo)
|
|
|
|
/* > 0 if started by a cygwin process */
|
|
DWORD cygstarted;
|
|
|
|
/* Parent process id. */
|
|
pid_t ppid;
|
|
|
|
/* dwProcessId contains the processid used for sending signals. It
|
|
* will be reset in a child process when it is capable of receiving
|
|
* signals.
|
|
*/
|
|
DWORD dwProcessId;
|
|
|
|
/* Used to spawn a child for fork(), among other things. */
|
|
char progname[CYG_MAX_PATH];
|
|
|
|
/* User information.
|
|
The information is derived from the GetUserName system call,
|
|
with the name looked up in /etc/passwd and assigned a default value
|
|
if not found. This data resides in the shared data area (allowing
|
|
tasks to store whatever they want here) so it's for informational
|
|
purposes only. */
|
|
__uid32_t uid; /* User ID */
|
|
__gid32_t gid; /* Group ID */
|
|
pid_t pgid; /* Process group ID */
|
|
pid_t sid; /* Session ID */
|
|
int ctty; /* Control tty */
|
|
bool has_pgid_children;/* True if we've forked or spawned children with our GID. */
|
|
|
|
/* Resources used by process. */
|
|
long start_time;
|
|
struct rusage rusage_self;
|
|
struct rusage rusage_children;
|
|
int nice;
|
|
|
|
/* Non-zero if process was stopped by a signal. */
|
|
char stopsig;
|
|
|
|
/* commune */
|
|
pid_t hello_pid;
|
|
HANDLE tothem;
|
|
HANDLE fromthem;
|
|
|
|
inline void set_has_pgid_children ()
|
|
{
|
|
if (pgid == pid)
|
|
has_pgid_children = 1;
|
|
}
|
|
|
|
inline void set_has_pgid_children (bool val) {has_pgid_children = val;}
|
|
|
|
inline sigset_t& getsigmask ()
|
|
{
|
|
return sig_mask;
|
|
}
|
|
|
|
inline void setsigmask (sigset_t mask)
|
|
{
|
|
sig_mask = mask;
|
|
}
|
|
|
|
void commune_recv ();
|
|
commune_result commune_send (DWORD, ...);
|
|
bool alive ();
|
|
fhandler_pipe *pipe_fhandler (HANDLE hdl, size_t &);
|
|
char *fd (int fd, size_t &);
|
|
char *fds (size_t &);
|
|
char *root (size_t &);
|
|
char *cwd (size_t &);
|
|
char *cmdline (size_t &);
|
|
void set_ctty (class tty_min *, int, class fhandler_tty_slave *);
|
|
bool dup_proc_pipe (HANDLE) __attribute__ ((regparm(2)));
|
|
void sync_proc_pipe ();
|
|
bool alert_parent (char);
|
|
int __stdcall kill (siginfo_t&) __attribute__ ((regparm (2)));
|
|
bool __stdcall exists () __attribute__ ((regparm (1)));
|
|
|
|
friend void __stdcall set_myself (HANDLE);
|
|
|
|
/* signals */
|
|
HANDLE sendsig;
|
|
HANDLE exec_sendsig;
|
|
DWORD exec_dwProcessId;
|
|
private:
|
|
sigset_t sig_mask;
|
|
public:
|
|
HANDLE wr_proc_pipe;
|
|
DWORD wr_proc_pipe_owner;
|
|
friend class pinfo;
|
|
};
|
|
|
|
enum parent_alerter
|
|
{
|
|
__ALERT_REPARENT = 111, // arbitrary non-signal value
|
|
__ALERT_ALIVE = 112
|
|
};
|
|
|
|
class pinfo
|
|
{
|
|
HANDLE h;
|
|
_pinfo *procinfo;
|
|
bool destroy;
|
|
public:
|
|
HANDLE rd_proc_pipe;
|
|
HANDLE hProcess;
|
|
CRITICAL_SECTION _lock;
|
|
bool waiter_ready;
|
|
/* Handle associated with initial Windows pid which started it all. */
|
|
class cygthread *wait_thread;
|
|
void init (pid_t, DWORD, HANDLE) __attribute__ ((regparm(3)));
|
|
pinfo () {}
|
|
pinfo (_pinfo *x): procinfo (x), hProcess (NULL) {}
|
|
pinfo (pid_t n) : rd_proc_pipe (NULL), hProcess (NULL) {init (n, 0, NULL);}
|
|
pinfo (pid_t n, DWORD flag) : rd_proc_pipe (NULL), hProcess (NULL), waiter_ready (0), wait_thread (NULL) {init (n, flag, NULL);}
|
|
void release ();
|
|
int wait () __attribute__ ((regparm (1)));
|
|
~pinfo ()
|
|
{
|
|
if (destroy && procinfo)
|
|
release ();
|
|
}
|
|
void exit (DWORD n) __attribute__ ((noreturn, regparm(2)));
|
|
void maybe_set_exit_code_from_windows () __attribute__ ((regparm(1)));
|
|
void initialize_lock () {InitializeCriticalSection (&_lock);}
|
|
void lock () {EnterCriticalSection (&_lock);}
|
|
void unlock () {LeaveCriticalSection (&_lock);}
|
|
_pinfo *operator -> () const {return procinfo;}
|
|
int operator == (pinfo *x) const {return x->procinfo == procinfo;}
|
|
int operator == (pinfo &x) const {return x.procinfo == procinfo;}
|
|
int operator == (_pinfo *x) const {return x == procinfo;}
|
|
int operator == (void *x) const {return procinfo == x;}
|
|
int operator == (int x) const {return (int) procinfo == (int) x;}
|
|
int operator == (char *x) const {return (char *) procinfo == x;}
|
|
_pinfo *operator * () const {return procinfo;}
|
|
operator _pinfo * () const {return procinfo;}
|
|
// operator bool () const {return (int) h;}
|
|
void preserve () { destroy = false; }
|
|
#ifndef _SIGPROC_H
|
|
int remember () {system_printf ("remember is not here"); return 0;}
|
|
#else
|
|
int remember (bool detach)
|
|
{
|
|
int res = proc_subproc (detach ? PROC_DETACHED_CHILD : PROC_ADDCHILD,
|
|
(DWORD) this);
|
|
destroy = res ? false : true;
|
|
return res;
|
|
}
|
|
#endif
|
|
HANDLE shared_handle () {return h;}
|
|
void set_acl ();
|
|
void zap_cwd ();
|
|
friend class _pinfo;
|
|
};
|
|
|
|
#define ISSTATE(p, f) (!!((p)->process_state & f))
|
|
#define NOTSTATE(p, f) (!((p)->process_state & f))
|
|
|
|
class winpids
|
|
{
|
|
DWORD *pidlist;
|
|
DWORD npidlist;
|
|
pinfo *pinfolist;
|
|
DWORD pinfo_access; // access type for pinfo open
|
|
DWORD (winpids::* enum_processes) (bool winpid);
|
|
DWORD enum_init (bool winpid);
|
|
DWORD enumNT (bool winpid);
|
|
DWORD enum9x (bool winpid);
|
|
void add (DWORD& nelem, bool, DWORD pid);
|
|
public:
|
|
DWORD npids;
|
|
inline void reset () { npids = 0; release (); }
|
|
void set (bool winpid);
|
|
winpids (): enum_processes (&winpids::enum_init) {}
|
|
winpids (int): pinfo_access (0), enum_processes (&winpids::enum_init)
|
|
{ reset (); }
|
|
winpids (DWORD acc): pidlist (NULL), npidlist (0), pinfolist (NULL),
|
|
enum_processes (&winpids::enum_init), npids (0)
|
|
{
|
|
pinfo_access = acc;
|
|
set (0);
|
|
}
|
|
inline DWORD& winpid (int i) const {return pidlist[i];}
|
|
inline _pinfo *operator [] (int i) const {return (_pinfo *) pinfolist[i];}
|
|
~winpids ();
|
|
void release ();
|
|
};
|
|
|
|
extern __inline pid_t
|
|
cygwin_pid (pid_t pid)
|
|
{
|
|
return (pid_t) (wincap.has_negative_pids ()) ? -(int) pid : pid;
|
|
}
|
|
|
|
void __stdcall pinfo_init (char **, int);
|
|
void __stdcall set_myself (HANDLE h);
|
|
extern pinfo myself;
|
|
|
|
#define _P_VFORK 0
|
|
#define _P_SYSTEM 512
|
|
|
|
/* For mmaps across fork(). */
|
|
int __stdcall fixup_mmaps_after_fork (HANDLE parent);
|
|
/* for shm areas across fork (). */
|
|
int __stdcall fixup_shms_after_fork ();
|
|
|
|
void __stdcall fill_rusage (struct rusage *, HANDLE);
|
|
void __stdcall add_rusage (struct rusage *, struct rusage *);
|
|
#endif /*_PINFO_H*/
|