Changeset 1574 for trunk/src/emx/include/sys/signal.h

Timestamp:

Oct 10, 2004, 1:07:40 PM (21 years ago)

Author:

bird

Message:

Signal changes - enabled by NEW_SIGNALS.

File:

• trunk/src/emx/include/sys/signal.h (modified) (2 diffs, 1 prop)

trunk/src/emx/include/sys/signal.h

@@ +1 @@
+#ifdef __NEW_SIGNALS__
+/* $Id: $ */
+/** @file
+ *
+ * BSD compatible.
+ *
+ *
+ * Copyright (c) 2004 knut st. osmundsen <bird-srcspam@anduin.net>
+ *
+ *
+ * This file is part of InnoTek LIBC.
+ *
+ * InnoTek LIBC is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published
+ * by the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * InnoTek LIBC 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 Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with InnoTek LIBC; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ */
+
+
+#ifndef _SYS_SIGNAL_H_
+#define _SYS_SIGNAL_H_
+
+/*******************************************************************************
+*   Header Files                                                               *
+*******************************************************************************/
+#include <sys/cdefs.h>
+#include <sys/_types.h>
+#include <machine/signal.h>
+
+
+/*******************************************************************************
+*   Defined Constants And Macros                                               *
+*******************************************************************************/
+/** @defgroup sys_signal_h_signo   Signal numbers.
+ * @{
+ */
+#if __XSI_VISIBLE || __POSIX_VISIBLE
+#define SIGHUP    1     /** POSIX: Hangup */
+#endif
+#define SIGINT    2     /** ANSI: Interrupt (Ctrl-C) */
+#if __XSI_VISIBLE || __POSIX_VISIBLE
+#define SIGQUIT   3     /** POSIX: Quit */
+#endif
+#define SIGILL    4     /** ANSI: Illegal instruction */
+#if __XSI_VISIBLE
+#define SIGTRAP   5     /** POSIX: Single step (debugging) */
+#endif
+#define SIGABRT   6     /** ANSI: abort () */
+#if __BSD_VISIBLE
+#define SIGIOT SIGABRT  /** BSD 4.2 */
+#define SIGEMT    7     /** BSD: EMT instruction */
+#endif
+#define SIGFPE    8     /** ANSI: Floating point */
+#if __XSI_VISIBLE || __POSIX_VISIBLE
+#define SIGKILL   9     /** POSIX: Kill process */
+#endif
+#if __XSI_VISIBLE || __POSIX_VISIBLE >= 200112
+#define SIGBUS   10     /** BSD 4.2: Bus error */
+#endif
+#define SIGSEGV  11     /** ANSI: Segmentation fault */
+#if __BSD_VISIBLE
+#define SIGSYS   12     /** Invalid argument to system call */
+#endif
+#if __XSI_VISIBLE || __POSIX_VISIBLE
+#define SIGPIPE  13     /** POSIX: Broken pipe. */
+#define SIGALRM  14     /** POSIX: Alarm. */
+#endif
+#define SIGTERM  15     /** ANSI: Termination, process killed */
+#if __XSI_VISIBLE || __POSIX_VISIBLE >= 200112
+#define SIGURG   16     /** POSIX/BSD: urgent condition on IO channel */
+#endif
+#if __XSI_VISIBLE || __POSIX_VISIBLE
+#define SIGSTOP  17     /** POSIX: Sendable stop signal not from tty. unblockable. */
+#define SIGTSTP  18     /** POSIX: Stop signal from tty. */
+#define SIGCONT  19     /** POSIX: Continue a stopped process. */
+#define SIGCHLD  20     /** POSIX: Death or stop of a child process. (EMX: 18) */
+#define SIGCLD SIGCHLD  /** System V */
+#define SIGTTIN  21     /** POSIX: To readers pgrp upon background tty read. */
+#define SIGTTOU  22     /** POSIX: To readers pgrp upon background tty write. */
+#endif
+#if __BSD_VISIBLE
+#define SIGIO    23     /** BSD: Input/output possible signal. */
+#endif
+#if __XSI_VISIBLE
+#define SIGXCPU  24     /** BSD 4.2: Exceeded CPU time limit. */
+#define SIGXFSZ  25     /** BSD 4.2: Exceeded file size limit. */
+#define SIGVTALRM 26    /** BSD 4.2: Virtual time alarm. */
+#define SIGPROF  27     /** BSD 4.2: Profiling time alarm. */
+#endif
+#if __BSD_VISIBLE
+#define SIGWINCH 28     /** BSD 4.3: Window size change (not implemented). */
+#define SIGINFO  29     /** BSD 4.3: Information request. */
+#endif
+#if __XSI_VISIBLE || __POSIX_VISIBLE
+#define SIGUSR1  30     /** POSIX: User-defined signal #1 */
+#define SIGUSR2  31     /** POSIX: User-defined signal #2 */
+#endif
+#define SIGBREAK 32     /** OS/2: Break (Ctrl-Break). (EMX: 21) */
+#if __BSD_VISIBLE
+#define NSIG     33     /** Number of old style signals (counting zero). */
+#endif
+
+#define SIGRTMIN 33     /** First real time signal. */
+#define SIGRTMAX 63     /** Last real time signal (inclusive) */
+/** @} */
+
+
+/** @defgroup sys_signal_h_sighnd  Fake Signal Functions
+ * @{
+ */
+#define SIG_ERR ((void (*)(int))-1)     /** Failure. */
+#define SIG_DFL ((void (*)(int))0)      /** Default action. */
+#define SIG_IGN ((void (*)(int))1)      /** Ignore signal. */
+/* 2 is reserved for BSD internal use */
+#if __BSD_VISIBLE || __POSIX_VISIBLE >= 200112 /** @todo check specs on SIG_HOLD. */
+#define SIG_HOLD ((void (*)(int))3)
+#endif
+#ifdef __BSD_VISIBLE
+#define SIG_ACK ((void (*)(int))4)      /** OS/2: Acknowledge a signal. */
+#endif
+/** @} */
+
+
+/** @defgroup sys_signal_h_sigev    Signal Event Notification Types.
+ * See struct sigevent.
+ * @{
+ */
+#define SIGEV_NONE      0               /* No async notification */
+#define SIGEV_SIGNAL    1               /* Generate a queued signal */
+#define SIGEV_THREAD    2               /* Deliver via thread creation. */
+/** @} */
+
+
+/** @defgroup sys_signal_h_sigaction_flags  Signal Action Flags.
+ * @{
+ */
+#if __XSI_VISIBLE
+/** Take signal on a registerd stack_t. */
+#define SA_ONSTACK          0x00000001
+/** Restart system call on signal return. Not implemented on OS/2. */
+#define SA_RESTART          0x00000002
+/** Reset signal handler to SIG_DFL when deliving the signal. */
+#define SA_RESETHAND        0x00000004
+/** Don't mask the signal which is being delivered. */
+#define SA_NODEFER          0x00000010
+/** Don't keep zombies around for wait*(). Not implmented on OS/2. */
+#define SA_NOCLDWAIT        0x00000020
+/** Signal the handler with the full set of arguments. */
+#define SA_SIGINFO          0x00000040
+#endif
+#if __XSI_VISIBLE || __POSIX_VISIBLE
+/** Do not generate SIGCHLD on child stop. */
+#define SA_NOCLDSTOP        0x00000008
+#endif
+/** Block the signal (OS/2 legacy mode). */
+#define SA_ACK              0x10000000
+/** EMX compatibility. */
+#define SA_SYSV             SA_RESETHAND
+/** @} */
+
+
+#if __BSD_VISIBLE
+/** #defgroup sys_signal_h_sigval_flags     Signal Value Flags.
+ * BSD 4.3 compatibility.
+ * @{
+ */
+#define SV_ONSTACK          SA_ONSTACK
+/** opposite sense. */
+#define SV_INTERRUPT        SA_RESTART
+#define SV_RESETHAND        SA_RESETHAND
+#define SV_NODEFER          SA_NODEFER
+#define SV_NOCLDSTOP        SA_NOCLDSTOP
+#define SV_SIGINFO          SA_SIGINFO
+/** @} */
+#endif
+
+
+/** @defgroup   sys_signal_h_stack_t_flags  Signal Stack Flags. (ss_flags)
+ * @{
+ */
+/** Deliver signal on alternate stack. */
+#define SS_ONSTACK          0x00000001
+/** Do not take signal on alternate stack. */
+#define SS_DISABLE          0x00000004
+/** @} */
+/** Recommended size for an alternate signal stack. (See stack_t) */
+#define SIGSTKSZ            (0x10000)
+
+
+
+#if __BSD_VISIBLE || __POSIX_VISIBLE > 0 && __POSIX_VISIBLE <= 200112
+/** Convert signo to a signal mask for use with sigblock(). */
+#define sigmask(signo)          (1 << ((signo) - 1))
+#endif
+
+#if __BSD_VISIBLE
+#define BADSIG          SIG_ERR
+#endif
+
+#if __POSIX_VISIBLE || __XSI_VISIBLE
+/*
+ * Flags for sigprocmask:
+ */
+/** @defgroup   sys_signal_h_sigprocmask_flags  Flags for sigprocmask().
+ * @{
+ */
+/** Block specified signal set. */
+#define SIG_BLOCK           1
+/** Unblock specified signal set. */
+#define SIG_UNBLOCK         2
+/** Set specified signal set. */
+#define SIG_SETMASK         3
+#endif
+
+
+
+/** @defgroup sys_signal_h_si_code  siginfo_t.si_code values.
+ * @{
+ */
+
+/** @defgroup sys_signal_h_si_code_sigill   siginfo_t.si_code values - SIGILL
+ * @{ */
+/** Illegal opcode. */
+#define ILL_ILLOPC      0x80001001
+/** Illegal operand. */
+#define ILL_ILLOPN      0x80001002
+/** Illegal addressing mode. */
+#define ILL_ILLADR      0x80001003
+/** Illegal trap. */
+#define ILL_ILLTRP      0x80001004
+/** Privileged opcode. */
+#define ILL_PRVOPC      0x80001005
+/** Privileged register. */
+#define ILL_PRVREG      0x80001006
+/** Coprocessor error. */
+#define ILL_COPROC      0x80001007
+/** Internal stack error. */
+#define ILL_BADSTK      0x80001008
+/** @} */
+
+
+/** @defgroup sys_signal_h_si_code_sigfpe   siginfo_t.si_code values - SIGILL
+ * @{ */
+/** see machine/trap.h. */
+/** @} */
+
+
+/** @defgroup sys_signal_h_si_code_sigsegv  siginfo_t.si_code values - SIGSEGV
+ * @{ */
+/** Address not mapped to object. */
+#define SEGV_MAPERR     0x80003001
+/** Invalid permissions for mapped object. */
+#define SEGV_ACCERR     0x80003002
+/** @} */
+
+
+/** @defgroup sys_signal_h_si_code_sigbus  siginfo_t.si_code values - SIGBUS
+ * @{ */
+/** Invalid address alignment. */
+#define BUS_ADRALN      0x80004001
+/** Nonexistent physical address. */
+#define BUS_ADRERR      0x80004002
+/** Object-specific hardware error. */
+#define BUS_OBJERR      0x80004003
+/** @} */
+
+
+/** @defgroup sys_signal_h_si_code_sigtrap siginfo_t.si_code values - SIGTRAP
+ * @{ */
+/** Process breakpoint. */
+#define TRAP_BRKPT      0x80005001
+/** Process trace trap. */
+#define TRAP_TRACE      0x80005002
+/** @} */
+
+
+/** @defgroup sys_signal_h_si_code_sigchild siginfo_t.si_code values - SIGCHLD
+ * @{ */
+/** Child has exited. */
+#define CLD_EXITED      0x80006001
+/** Child has terminated abnormally and did not create a core file. */
+#define CLD_KILLED      0x80006002
+/** Child has terminated abnormally and created a core file. */
+#define CLD_DUMPED      0x80006003
+/** Traced child has trapped. */
+#define CLD_TRAPPED     0x80006004
+/** Child has stopped. */
+#define CLD_STOPPED     0x80006005
+/** Stopped child has continued. */
+#define CLD_CONTINUED   0x80006006
+/** @} */       
+
+
+/** @defgroup sys_signal_h_si_code_sigpoll siginfo_t.si_code values - SIGPOLL
+ * @{ */
+/** Data input available. */
+#define POLL_IN         0x80007001
+/** Output buffers available. */
+#define POLL_OUT        0x80007002
+/** Input message available. */
+#define POLL_MSG        0x80007003
+/** I/O error. */
+#define POLL_ERR        0x80007004
+/** High priority input available. */
+#define POLL_PRI        0x80007005
+/** Device disconnected. */
+#define POLL_HUP        0x80007006
+/** @} */
+
+
+/** @defgroup sys_signal_h_siginfo_codes    Signal Info Codes (si_code).
+ * @{ */
+#if __POSIX_VISIBLE || __XSI_VISIBLE
+/** Sent by kill() or raise(). */
+#define SI_USER             0x00010001
+/** Sent by sigqueue(). */
+#define SI_QUEUE            0x00010002
+/** Sent cause a timer expired. */
+#define SI_TIMER            0x00010003
+/** Sent upon AIO completion. */
+#define SI_ASYNCIO          0x00010004
+/** Sent upon real time mesq state change. */
+#define SI_MESGQ            0x00010005
+#endif
+#if __BSD_VISIBLE
+/** No idea. */
+#define SI_UNDEFINED        0x00000000
+#endif
+/** @} */
+
+/** @} */
+
+
+/*******************************************************************************
+*   Structures and Typedefs                                                    *
+*******************************************************************************/
+#if __POSIX_VISIBLE || __XSI_VISIBLE
+#ifndef _SIGSET_T_DECLARED
+#define _SIGSET_T_DECLARED
+/** Signal set. */
+typedef __sigset_t sigset_t;
+#endif
+#endif
+
+
+#if __POSIX_VISIBLE >= 199309 || __XSI_VISIBLE >= 500
+/** Type for a value associated with a signal. */
+typedef union sigval
+{
+    int     sigval_int;
+    void   *sigval_ptr;
+} sigval_t;
+#endif
+
+
+#if __POSIX_VISIBLE >= 199309
+/** Signal event. */
+typedef struct sigevent
+{
+    /** Notification type. */
+    int             sigev_notify;
+    /** Signal number. */
+    int             sigev_signo;
+    /** Signal value. */
+    union sigval    sigev_value;
+    /** Thread Function. */
+    void          (*sigev_notify_function)(sigval_t);
+    /** Thread Attributes. */
+    void           *sigev_notify_attributes;
+} sigevent_t;
+#endif
+
+
+#if __XSI_VISIBLE || __POSIX_VISIBLE >= 199309
+/**
+ * Signal info.
+ */
+typedef struct __siginfo
+{
+    /** Signal number. */
+    int             si_signo;
+    /** Associated errno. */
+    int             si_errno;
+    /** Signal code. (See SI_* and FPE_* macros.) */
+    int             si_code;
+    /** Timestamp when the signal was generated - LIBC extension. */
+    unsigned        si_timestamp;
+    /** Process sending the signal. */
+    __pid_t         si_pid;
+    /** Thread sending the signal - LIBC extension. */
+    unsigned        si_tid;
+    /** User sending the signal (ruid). (Usually 0 for OS/2) */
+    __uid_t         si_uid;
+    /** Exit value. (SIGCHLD) */
+    int             si_status;
+    /** Pointer to the faulting instruction or memory reference. (SIGSEGV, SIGILL, SIGFPE, SIGBUS) */
+    void           *si_addr;
+    /** Signal value. */
+    union sigval    si_value;
+    /** Band event for SIGPOLL. */
+    long            si_band;
+    /** Filehandle for SIGPOLL. */
+    int             si_fd;
+    /** Reserve a little bit for future usage. */
+    unsigned        auReserved[4];
+} siginfo_t;
+#endif
+
+
+#if __POSIX_VISIBLE || __XSI_VISIBLE
+struct __siginfo;
+
+/** Signal action structure for sigaction(). */
+struct sigaction
+{
+    /** Two handler prototypes, __sa_handler is the exposed one,
+     * while __sa_sigaction is the one used internally. The two extra
+     * arguments will not cause any trouble because of the nature of
+     * __cdecl on i386.
+     */
+    union
+    {
+        /** New style handler. First arg is signal number, second is signal
+         * info, third is signal specific (I think). */
+        void  (*__sa_sigaction)(int, struct __siginfo *, void *);
+        /** Old style handler. First arg is signal number. */
+        void  (*__sa_handler)(int);
+    }  __sigaction_u;
+    /** Signal mask to apply when executing the action. */
+    sigset_t    sa_mask;
+    /** Signal action flags. (See SA_* macros.) */
+    int         sa_flags;
+};
+#define sa_handler      __sigaction_u.__sa_handler
+#endif
+
+
+#if __BSD_VISIBLE
+/** BSD 4.3 compatibility.
+ * This structure is identical to sigaction.
+ */
+struct sigvec
+{
+    /** See sa_sigaction in struct sigaction. */
+    void      (*sv_handler)(int, struct __siginfo *, void *);
+    /** See sa_mask in struct sigaction. */
+    int         sv_mask;
+    /** See sa_flags in struct sigaction. */
+    int         sv_flags;
+};
+#define sv_onstack          sv_flags
+#endif
+
+
+#if __XSI_VISIBLE
+/*
+ * Structure used in sigaltstack call.
+ */
+#if __BSD_VISIBLE
+typedef struct sigaltstack
+#else
+typedef struct
+#endif
+{
+    /** Stack base pointer. */
+    void       *ss_sp;
+    /** Stack size. */
+    __size_t    ss_size;
+    /** Flags. (SS_DISABLE and/or SS_ONSTACK) */
+    int         ss_flags;
+} stack_t;
+#endif
+
+
+#if __XSI_VISIBLE
+/** Structure for sigstack(). obsolete. */
+struct sigstack
+{
+    /** Pointer to stack base. */
+    void       *ss_sp;
+    /** On stack indicator. Non zero if executing on this stack. */
+    int         ss_onstack;
+};
+#endif
+
+
+/*******************************************************************************
+*   Functions                                                                  *
+*******************************************************************************/
+
+__BEGIN_DECLS
+void (*signal(int, void (*)(int)))(int);
+
+void (*bsd_signal(int, void (*)(int)))(int);
+void (*_signal_sysv(int, void (*)(int)))(int);
+void (*_signal_os2(int, void (*)(int)))(int);
+
+/** @define __LIBC_SIGNAL_SYSV
+ * #define __LIBC_SIGNAL_SYSV to use System V style signal. */
+#ifdef __LIBC_SIGNAL_SYSV
+static inline void (*signal (int iSignalNo, void (*pfnHandler)(int)))(int)
+{ return _signal_sysv(iSignalNo, pfnHandler); }
+#endif
+
+/** @define __LIBC_SIGNAL_OS2
+ * #define __LIBC_SIGNAL_OS2 to use System V style signal. */
+#ifdef __LIBC_SIGNAL_OS2
+static inline void (*signal (int iSignalNo, void (*pfnHandler)(int)))(int)
+{ return _signal_os2(iSignalNo, pfnHandler); }
+#endif
+
+__END_DECLS
+
+
+#if 0  /** @todo various emx stuff. */
+#define SIGPTRACENOTIFY 128     /* Notification from ptrace() */
+#define SIGTY           void
+#endif
+
+#endif /* not _SYS_SIGNAL_H */
+
+
+#else /* !__NEW_SIGNALS__ */
+
+
 /* sys/signal.h (emx+gcc) */
 
@@ -121 +656 @@
 
 #endif /* not _SYS_SIGNAL_H */
+
+
+#endif /* !__NEW_SIGNALS__ */