diff options
Diffstat (limited to 'winsup/cygwin/sigproc.h')
| -rw-r--r-- | winsup/cygwin/sigproc.h | 51 |
1 files changed, 49 insertions, 2 deletions
diff --git a/winsup/cygwin/sigproc.h b/winsup/cygwin/sigproc.h index 0ef9e74a1..eee35748f 100644 --- a/winsup/cygwin/sigproc.h +++ b/winsup/cygwin/sigproc.h @@ -32,12 +32,60 @@ typedef struct struct_waitq HANDLE thread_ev; } waitq; +class muto; + +struct sigthread +{ + DWORD id; + DWORD frame; + muto *lock; + sigthread () : id (0), frame (0), lock (0) {} +}; + +class sigframe +{ +private: + sigthread *st; + +public: + void set (sigthread &t, int up = 1) + { + if (!t.lock) + t.lock = new_muto (FALSE, "sigthread"); + t.lock->acquire (); + st = &t; + 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, int); +int __stdcall sig_handle (int); void __stdcall sig_clear (int); void __stdcall sig_set_pending (int); int __stdcall handle_sigsuspend (sigset_t); @@ -53,7 +101,6 @@ void __stdcall signal_fixup_after_fork (); extern char myself_nowait_dummy[]; extern char myself_nowait_nonmain_dummy[]; -extern DWORD maintid; extern HANDLE hExeced; // Process handle of new window // process created by spawn_guts() |