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/* sigproc.h
Copyright 1997, 1998, 2000 Cygnus Solutions.
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. */
#define EXIT_SIGNAL 0x010000
#define EXIT_REPARENTING 0x020000
#define EXIT_NOCLOSEALL 0x040000
enum procstuff
{
PROC_ADDCHILD = 1, // add a new subprocess to list
PROC_CHILDSTOPPED = 2, // a child stopped
PROC_CHILDTERMINATED = 3, // a child died
PROC_CLEARWAIT = 4, // clear all waits - signal arrived
PROC_WAIT = 5 // setup for wait() for subproc
};
typedef struct struct_waitq
{
int pid;
int options;
int status;
HANDLE ev;
void *rusage; /* pointer to potential rusage */
struct struct_waitq *next;
HANDLE thread_ev;
} waitq;
class muto;
struct sigthread
{
DWORD id;
DWORD frame;
muto *lock;
sigthread () : id (0), frame (0), lock (0) {}
void init (const char *s);
};
class sigframe
{
private:
sigthread *st;
public:
void set (sigthread &t, int up = 1, DWORD ebp = 0)
{
t.lock->acquire ();
st = &t;
if (ebp)
t.frame = ebp;
else
t.frame = (DWORD) (up ? __builtin_frame_address (1) :
__builtin_frame_address (0));
t.lock->release ();
}
sigframe () {st = NULL;}
sigframe (sigthread &t, int up = 1)
{
if (!t.frame && t.id == GetCurrentThreadId ())
set (t, up);
else
st = NULL;
}
~sigframe ()
{
if (st)
{
st->lock->acquire ();
st->frame = 0;
st->lock->release ();
st = NULL;
}
}
};
extern sigthread mainthread;
extern HANDLE signal_arrived;
BOOL __stdcall my_parent_is_alive ();
extern "C" int __stdcall sig_dispatch_pending (int force = FALSE) __asm__ ("sig_dispatch_pending");
extern "C" void __stdcall set_process_mask (sigset_t newmask);
int __stdcall sig_handle (int);
void __stdcall sig_clear (int);
void __stdcall sig_set_pending (int);
int __stdcall handle_sigsuspend (sigset_t);
void __stdcall proc_terminate ();
void __stdcall sigproc_init ();
void __stdcall subproc_init ();
void __stdcall sigproc_terminate ();
BOOL __stdcall proc_exists (pinfo *);
int __stdcall proc_subproc (DWORD, DWORD);
int __stdcall sig_send (pinfo *, int, DWORD ebp = 0);
void __stdcall signal_fixup_after_fork ();
extern char myself_nowait_dummy[];
extern char myself_nowait_nonmain_dummy[];
extern HANDLE hExeced; // Process handle of new window
// process created by spawn_guts()
#define WAIT_SIG_EXITING (WAIT_OBJECT_0 + 1)
#define allow_sig_dispatch(n) __allow_sig_dispatch (__FILE__, __LINE__, (n))
#define myself_nowait ((pinfo *)myself_nowait_dummy)
#define myself_nowait_nonmain ((pinfo *)myself_nowait_nonmain_dummy)
#define proc_register(child) \
proc_subproc (PROC_ADDCHILD, (DWORD) (child))
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