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f02f1f1444
interruptible. (call_handler): Avoid suspending a thread if it owns a mutex. Only set signal_arrived if the thread was actually interrupted. (events_init): Initialize module information needed by interruptible(). (sigdelayed): Don't call sig_dispatch_pending since it could screw up * init.cc (dll_entry): Record module handle of main for use by interruptible(). (proc_subproc): Reorganize handling of terminated child so that the bulk of the processing comes from the signal thread. (wait_sig): Force processing of waiting threads if SIGCHLD is not processed. * sync.cc (muto::release): Set tid == 0 after lock is released or signal processor will be confused.
68 lines
2.0 KiB
C
68 lines
2.0 KiB
C
/* sigproc.h
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Copyright 1997, 1998, 2000 Cygnus Solutions.
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This file is part of Cygwin.
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This software is a copyrighted work licensed under the terms of the
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Cygwin license. Please consult the file "CYGWIN_LICENSE" for
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details. */
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#define EXIT_SIGNAL 0x010000
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#define EXIT_REPARENTING 0x020000
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#define EXIT_NOCLOSEALL 0x040000
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enum procstuff
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{
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PROC_ADDCHILD = 1, // add a new subprocess to list
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PROC_CHILDSTOPPED = 2, // a child stopped
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PROC_CHILDTERMINATED = 3, // a child died
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PROC_CLEARWAIT = 4, // clear all waits - signal arrived
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PROC_WAIT = 5, // setup for wait() for subproc
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PROC_SIGCHLD = 6 // saw a non-trapped SIGCHLD
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};
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typedef struct struct_waitq
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{
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int pid;
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int options;
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int status;
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HANDLE ev;
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void *rusage; /* pointer to potential rusage */
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struct struct_waitq *next;
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HANDLE thread_ev;
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} waitq;
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extern HANDLE signal_arrived;
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BOOL __stdcall my_parent_is_alive ();
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extern "C" int __stdcall sig_dispatch_pending (int force = FALSE) __asm__ ("sig_dispatch_pending");
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extern "C" void __stdcall set_process_mask (sigset_t newmask);
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int __stdcall sig_handle (int);
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void __stdcall sig_clear (int);
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void __stdcall sig_set_pending (int);
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int __stdcall handle_sigsuspend (sigset_t);
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void __stdcall proc_terminate ();
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void __stdcall sigproc_init ();
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void __stdcall subproc_init ();
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void __stdcall sigproc_terminate ();
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BOOL __stdcall proc_exists (pinfo *);
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int __stdcall proc_subproc (DWORD, DWORD);
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int __stdcall sig_send (pinfo *, int);
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extern char myself_nowait_dummy[];
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extern char myself_nowait_nonmain_dummy[];
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extern DWORD maintid;
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extern HANDLE hExeced; // Process handle of new window
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// process created by spawn_guts()
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#define WAIT_SIG_EXITING (WAIT_OBJECT_0 + 1)
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#define allow_sig_dispatch(n) __allow_sig_dispatch (__FILE__, __LINE__, (n))
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#define myself_nowait ((pinfo *)myself_nowait_dummy)
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#define myself_nowait_nonmain ((pinfo *)myself_nowait_nonmain_dummy)
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#define proc_register(child) \
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proc_subproc (PROC_ADDCHILD, (DWORD) (child))
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