Changeset 1574


Ignore:
Timestamp:
Oct 10, 2004, 1:07:40 PM (21 years ago)
Author:
bird
Message:

Signal changes - enabled by NEW_SIGNALS.

Location:
trunk/src/emx/include
Files:
10 added
9 edited

Legend:

Unmodified
Added
Removed

  • trunk/src/emx/include/386/_limits.h

    • Property cvs2svn:cvs-rev changed from 1.2 to 1.3
    r1573 r1574  
    3838 * FreeBSD 5.1
    3939 * @changed bird: max and min of off_t.
     40 * @changed bird: added __RTSIG_MAX.
    4041 */
    4142
    … …  
    110111#define __WORD_BIT      32
    111112
     113/* bird: Real time signals. */
     114#define __RTSIG_MAX     32
    112115#endif /* !_MACHINE__LIMITS_H_ */

  • trunk/src/emx/include/InnoTekLIBC/backend.h

    • Property cvs2svn:cvs-rev changed from 1.6 to 1.7
    r1573 r1574  
    4848 * Initiatlize a new thread structure.
    4949 *
    50  * @param   pThrd   Pointer to the thread structure.
    51  */
    52 void __libc_Back_threadInit(__LIBC_PTHREAD pThrd);
     50 * @param   pThrd       Pointer to the thread structure.
     51 * @param   pParentThrd Pointer to the thread structure for the parent thread.
     52 *                      If NULL and thread id is 1 then inherit from parent process.
     53 *                      If NULL and thread is not null or no record of parent then
     54 *                      use defaults.
     55 */
     56void __libc_Back_threadInit(__LIBC_PTHREAD pThrd, const __LIBC_PTHREAD pParentThrd);
    5357
    5458/**
    … …  
    401405/** @} */
    402406
     407
     408/** @defgroup __libc_Back_Signals   LIBC Backend - Signals and Exceptions
     409 * @{ */
     410
     411#if defined(END_OF_CHAIN) && defined(INCL_DOSEXCEPTIONS)
     412/**
     413 * The LIBC Sys Backend exception handler.
     414 *
     415 * @returns XCPT_CONTINUE_SEARCH or XCPT_CONTINUE_EXECUTION.
     416 * @param   pXcptRepRec     Report record.
     417 * @param   pXcptRegRec     Registration record.
     418 * @param   pCtx            Context record.
     419 * @param   pvWhatEver      Not quite sure what this is...
     420 */
     421ULONG _System __libc_Back_exceptionHandler(PEXCEPTIONREPORTRECORD       pXcptRepRec,
     422                                           PEXCEPTIONREGISTRATIONRECORD pXcptRegRec,
     423                                           PCONTEXTRECORD               pCtx,
     424                                           PVOID                        pvWhatEver);
     425#endif
     426
     427/** @} */
     428
    403429__END_DECLS
    404430

  • trunk/src/emx/include/InnoTekLIBC/pathrewrite.h

    • Property cvs2svn:cvs-rev changed from 1.1 to 1.2
    r1573 r1574  
    22/** @file
    33 *
    4  * LIBC SYS Backend - Path Rewrite.
     4 * InnoTek LIBC - Path Rewrite.
    55 *
    66 * Copyright (c) 2004 knut st. osmundsen <bird-srcspam@anduin.net>

  • trunk/src/emx/include/InnoTekLIBC/thread.h

    • Property cvs2svn:cvs-rev changed from 1.5 to 1.6
    r1573 r1574  
    6767    /** Default regular heap. */
    6868    struct _uheap * pRegularHeap;
     69    /** Reference count. */
     70    unsigned        cRefs;
     71    /** Thread Id. */
     72    unsigned        tid;
     73    /** Pointer to next thread in the list. */
     74    struct __libc_thread   *pNext;
     75    /** New TLS variable array. */
     76    void           *apvTLS[__LIBC_TLS_MAX];
    6977    /** Old TLS variable. */
    7078    void           *pvThreadStoreVar;
    71     /** New TLS variable array. */
    72     void           *apvTLS[__LIBC_TLS_MAX];
    7379
    7480    /** The nesting depth of the default logger. */
    … …  
    9197    char            szTTYNameBuf[32];
    9298
     99    /** Pending signals.
     100     * Protected by the signal semaphore. */
     101    sigset_t        SigSetPending;
     102    /** Blocked signals.
     103     * Protected by the signal semaphore. */
     104    sigset_t        SigSetBlocked;
     105    /** Old Blocked signals. Used by sigsuspend().
     106     * sigsuspend() sets this and fSigSetBlockedOld. When a signal is to be
     107     * delivered this member will be pushed on the stack for use on an eventual
     108     * return. fSigSetBlockOld will be clared.
     109     * Protected by the signal semaphore. */
     110    sigset_t        SigSetBlockedOld;
     111
     112    /** Signals queued for delivery on this thread.
     113     * Protected by the signal semaphore. */
     114    struct
     115    {
     116        struct SignalQueued *pHead;
     117        struct SignalQueued *pTail;
     118    }               SigQueue;
     119
     120    /** Alternate signal stack block address.
     121     * Protected by the signal semaphore. */
     122    void           *pvSigStack;
     123    /** Alternate signal stack block size.
     124     * Protected by the signal semaphore. */
     125    size_t          cbSigStack;
     126
     127    /** @defgroup   libc_threadstruct_flags     Thread Flags
     128     * @todo checkup access safety here!
     129     * @{ */
     130    /** If set SigSetBlockedOld should be used used to restore SigSetBlocked
     131     * when returning from a signal handler.  */
     132    unsigned        fSigSetBlockedOld : 1;
     133    /** If set the stack block pointed to by pvSigStack is in use. */
     134    unsigned        fSigStackActive : 1;
     135    /** If set the thread is internal.
     136     * This means the thread will not receive signals. */
     137    unsigned        fInternalThread : 1;
     138    /** @} */
     139
     140    /** Flags whether or not the thread is being forced to evaluate its
     141     * pending signals.
     142     *
     143     * All updates of this variable must be done atomically and when owning
     144     * the signal semaphore. The atomically requirement is because it's being
     145     * read without owning the semaphore.
     146     */
     147    unsigned        fSigBeingPoked;
     148
     149
     150
     151    /** Thread status, chiefly used for the u member of the thread structure. */
     152    enum enmLIBCThreadStatus
     153    {
     154        /** The thread status must be queried from the OS. */
     155        enmLIBCThreadStatus_unknown = 0,
     156        /** The thread status must be queried from the OS. */
     157        enmLIBCThreadStatus_startup,
     158        /** The thread is in a sigwait(), sigwaitinfo(), or sigtimedwait() call. */
     159        enmLIBCThreadStatus_sigwait,
     160    }               enmStatus;
     161
     162    /** Data used in certain thread states.
     163     * Use the enmStatus field to determin which way to read the data items here.
     164     */
     165    union
     166    {
     167        /** enmLIBCThreadStatus_startup:    Begin Thread Arguments. */
     168        struct __libc_thread_startup
     169        {
     170            /** Thread argument. */
     171            void    *pvArg;
     172            /** Thread routine. */
     173            void   (*pfnStart)(void *pvArg);
     174        } startup;
     175
     176        /** enmLIBCThreadStatus_sigwait:    Thread blocked in sigwait(), sigwaitinfo() or sigtimedwait(). */
     177        struct __libc_thread_sigwait
     178        {
     179            /** The signals we're waiting for. */
     180            sigset_t    SigSetWait;
     181            /** The where to return signal info. */
     182            siginfo_t  *pSigInfo;
     183        } SigWait;
     184    } u;
     185
    93186    /** Data used by the backends. */
    94187    union __libc_backend_data
    … …  
    96189        struct __libc_sys
    97190        {
    98             /** Blocked signal mask. */
    99             sigset_t            sig_blocked;
    100             /** Pending signal mask. */
    101             sigset_t            sig_pending;
    102             /** Signal actions. */
    103             struct sigaction    signals[NSIG];
    104 
    105191            /** Directory find data entry.
    106192             * Used by __findfirst() and __findnext(). */
    … …  
    110196                unsigned long   hdir;
    111197                /** Type of buffer content. FIL_STANDARDL or FIL_STANDARD,
    112                  * i.e. FILEFINDBUF3 or FILEFINDBUF3L. */
     198                 * i.e. FILEFINDBUF4 or FILEFINDBUF4L. */
    113199                unsigned long   fType;
    114200                /** Number of files left in the buffer. */
    … …  
    122208    } b;
    123209
    124     /** Data used in special periods of a threads life. */
    125     union
    126     {
    127         struct __libc_thread_startup
    128         {
    129             /** Thread argument. */
    130             void    *pvArg;
    131             /** Thread routine. */
    132             void   (*pfnStart)(void *pvArg);
    133         } startup;
    134     } u;
     210
    135211} __LIBC_THREAD;
    136212
    … …  
    187263 * @returns pointer to current thread struct.
    188264
     265 * @remark  No reference counting here, current thread have a permanent
     266 *          reference to it self.
    189267 * @remark  This API is considered to be internal to LIBC and is thus not
    190268 *          exposed in the shared library version of LIBC. Please don't call it.
    … …  
    202280 * @returns pointer to current thread struct.
    203281
     282 * @remark  No reference counting here, current thread have a permanent
     283 *          reference to it self.
    204284 * @remark  This API is considered to be internal to LIBC and is thus not
    205285 *          exposed in the shared library version of LIBC. Please don't call it.
    … …  
    217297 * @returns NULL if not initiated.
    218298 *
     299 * @remark  No reference counting here, current thread have a permanent
     300 *          reference to it self.
    219301 * @remark  This API is considered to be internal to LIBC and is thus not
    220302 *          exposed in the shared library version of LIBC. Please don't call it.
    … …  
    225307
    226308/**
     309 * Get the thread structure for the thread specified by it's thread identification.
     310 *
     311 * Used for instance by signal handling to change the signal properties of another
     312 * thread.
     313 *
     314 * @returns Pointer to threads thread struct.
     315 *          The caller _must_ call __libc_threadRelease() when it's done using the
     316 *          thread structure.
     317 * @returns NULL if the thread wasn't found.
     318 * @param   tid     The Thread Id of the thread to find.
     319 * @remark  This API is considered to be internal to LIBC and is thus not
     320 *          exposed in the shared library version of LIBC. Please don't call it.
     321 */
     322__LIBC_PTHREAD __libc_threadLookup(unsigned tid);
     323
     324
     325/**
     326 * Get the thread structure for a thread selected by a custom callback function.
     327 *
     328 * @returns Pointer to the selected thread.
     329 *          The caller _must_ call __libc_threadRelease() when it's done using the
     330 *          thread structure.
     331 * @param   pfnCallback Function which will to the thread selection.
     332 *
     333 *                      Returns 1 if the current thread should be returned.
     334 *                      Returns 2 if the current thread should be returned immediately.
     335 *                      Returns 0 if the current best thread should remain unchanged.
     336 *                      Returns -1 if the enumeration should fail (immediately).
     337 *
     338 *                      pCur        The current thread.
     339 *                      pBest       The current best thread.
     340 *                      pvParam     User parameter.
     341 *                     
     342 * @param   pvParam     User Parameter.
     343 */
     344__LIBC_PTHREAD __libc_threadLookup2(int (pfnCallback)(__LIBC_PTHREAD pCur, __LIBC_PTHREAD pBest, void *pvParam), void *pvParam);
     345
     346
     347/**
     348 * Enumerates all the threads LIBC is aware of subjecting each of them to a
     349 * caller specified callback function.
     350 *
     351 * @returns 0 on success.
     352 * @returns -1 if pfnCallback returned -1.
     353 *
     354 * @param   pfnCallback Function which will to the thread selection.
     355 *
     356 *                      Returns 0 if the enmeration should continue.
     357 *                      Returns -1 if the enumeration should fail (immediately).
     358 *
     359 *                      pCur        The current thread.
     360 *                      pvParam     User parameter.
     361 *                     
     362 * @param   pvParam     User Parameter.
     363 */
     364int         __libc_threadEnum(int (pfnCallback)(__LIBC_PTHREAD pCur, void *pvParam), void *pvParam);
     365
     366
     367/**
    227368 * Allocate and initialize a thread structure for a thread which is yet
    228369 * to be created.
    229370 *
     371 * The returned thread structure will have cRefs set to 1, thus
     372 * use __libc_threadDereference() to free it.
     373 *
    230374 * @returns Pointer to thread structure.
    231375 * @returns NULL on error. errno set.
    … …  
    235379
    236380/**
    237  * Free a thread structure.
    238  *
    239  * @param   pThrd   Pointer to the thread structure to free.
    240  *                  Must be valid.
    241  * @remark  If pThrd is for the current thread the thread must be
    242  *          in the very final termination stage.
    243  */
    244 void    __libc_threadFree(__LIBC_PTHREAD pThrd);
     381 * Sets up the current thread to use the thread structure pThrd.
     382 *
     383 * @param   pThrd   Pointer to the thread structure this thread
     384 *                  should be using.
     385 */
     386void __libc_threadUse(__LIBC_PTHREAD pThrd);
     387
     388
     389/**
     390 * Dereferences a thread structure referenced by __libc_threadLookup() or
     391 * __libc_threadLookup2(), or allocated by __libc_threadAlloc().
     392 *
     393 * LIBC maintains reference counting on the thread structure so the thread
     394 * structure will not be freed by the thread it represent while someone else
     395 * is accessing it. However, the reference counting does not protect any of
     396 * the structures members from writes or reads, that's left to the users of
     397 * the members to synchronize between them.
     398 *
     399 * @returns pointer to threads thread struct.
     400 * @returns NULL if the thread wasn't found.
     401 * @param   pThrd   Pointer to thread structure returned by __libc_threadLookup(),
     402 *                  __libc_threadLookup2() or __libc_threadAlloc().
     403 * @remark  This API is considered to be internal to LIBC and is thus not
     404 *          exposed in the shared library version of LIBC. Please don't call it.
     405 */
     406void __libc_threadDereference(__LIBC_PTHREAD pThrd);
    245407
    246408

  • trunk/src/emx/include/emx/syscalls.h

    • Property cvs2svn:cvs-rev changed from 1.12 to 1.13
    r1573 r1574  
    55
    66#include <sys/types.h>
     7#ifdef __NEW_SIGNALS__
     8#include <sys/_sigset.h>
     9#endif
    710
    811#if defined (__cplusplus)
    … …  
    2932#define _SO_SIZE        0x00200000
    3033
     34#ifndef __NEW_SIGNALS__
     35#include <sys/types.h>
    3136/* For debugging of signal handlers. */
    3237#define _SIG_MAGIC1     0xfeed6666
    … …  
    3944typedef unsigned long sigset_t;
    4045#endif
     46#endif /* !__NEW_SIGNALS__ */
     47
    4148
    4249struct hostent;

  • trunk/src/emx/include/signal.h

    • Property cvs2svn:cvs-rev changed from 1.2 to 1.3
    r1573 r1574  
     1#ifdef __NEW_SIGNALS__
     2/** @file
     3 * FreeBSD 5.1
     4 * @changed bird:   Added sighold(), sigignore(), sigrelse(). Added wrapper
     5 *                  between the two sigpause() APIs.
     6 */
     7
     8/*-
     9 * Copyright (c) 1991, 1993
     10 *      The Regents of the University of California.  All rights reserved.
     11 *
     12 * Redistribution and use in source and binary forms, with or without
     13 * modification, are permitted provided that the following conditions
     14 * are met:
     15 * 1. Redistributions of source code must retain the above copyright
     16 *    notice, this list of conditions and the following disclaimer.
     17 * 2. Redistributions in binary form must reproduce the above copyright
     18 *    notice, this list of conditions and the following disclaimer in the
     19 *    documentation and/or other materials provided with the distribution.
     20 * 3. All advertising materials mentioning features or use of this software
     21 *    must display the following acknowledgement:
     22 *      This product includes software developed by the University of
     23 *      California, Berkeley and its contributors.
     24 * 4. Neither the name of the University nor the names of its contributors
     25 *    may be used to endorse or promote products derived from this software
     26 *    without specific prior written permission.
     27 *
     28 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     29 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     30 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     31 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     32 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     33 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     34 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     35 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     36 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     37 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     38 * SUCH DAMAGE.
     39 *
     40 *      @(#)signal.h    8.3 (Berkeley) 3/30/94
     41 * $FreeBSD: src/include/signal.h,v 1.24 2003/03/31 23:30:41 jeff Exp $
     42 */
     43
     44#ifndef _SIGNAL_H_
     45#define _SIGNAL_H_
     46
     47#include <sys/cdefs.h>
     48#include <sys/_types.h>
     49#include <sys/signal.h>
     50
     51#if __BSD_VISIBLE
     52/*
     53 * XXX should enlarge these, if only to give empty names instead of bounds
     54 * errors for large signal numbers.
     55 */
     56extern __const char *__const sys_signame[NSIG];
     57extern __const char *__const sys_siglist[NSIG];
     58extern __const int sys_nsig;
     59#endif
     60
     61#if __POSIX_VISIBLE >= 200112 || __XSI_VISIBLE
     62#ifndef _PID_T_DECLARED
     63typedef __pid_t         pid_t;
     64#define _PID_T_DECLARED
     65#endif
     66#endif
     67
     68__BEGIN_DECLS
     69int     raise(int);
     70
     71#if __POSIX_VISIBLE || __XSI_VISIBLE
     72int     kill(__pid_t, int);
     73int     sigaction(int, const struct sigaction * __restrict,
     74            struct sigaction * __restrict);
     75int     sigaddset(sigset_t *, int);
     76int     sigdelset(sigset_t *, int);
     77int     sigemptyset(sigset_t *);
     78int     sigfillset(sigset_t *);
     79int     sigismember(const sigset_t *, int);
     80int     sigpending(sigset_t *);
     81int     sigprocmask(int, const sigset_t * __restrict, sigset_t * __restrict);
     82int     sigsuspend(const sigset_t *);
     83int     sigwait(const sigset_t * __restrict, int * __restrict);
     84#endif
     85
     86#if __POSIX_VISIBLE >= 199506 || __XSI_VISIBLE >= 600
     87#if 0
     88/*
     89 * PR: 35924
     90 * XXX we don't actually have these.  We set _POSIX_REALTIME_SIGNALS to
     91 * -1 to show that we don't have them, but this symbol is not necessarily
     92 * in scope (in the current implementation), so we can't use it here.
     93 */
     94int     sigqueue(__pid_t, int, const union sigval);
     95#endif
     96struct timespec;
     97int     sigtimedwait(const sigset_t * __restrict, siginfo_t * __restrict,
     98            const struct timespec * __restrict);
     99int     sigwaitinfo(const sigset_t * __restrict, siginfo_t * __restrict);
     100#endif
     101
     102#if __XSI_VISIBLE
     103int     killpg(__pid_t, int);
     104int     sigaltstack(const stack_t * __restrict, stack_t * __restrict);
     105int     sigpause(int);
     106#endif
     107
     108#if __POSIX_VISIBLE >= 200112
     109int     siginterrupt(int, int);
     110#endif
     111
     112#if __BSD_VISIBLE
     113int     sigblock(int);
     114struct __ucontext;              /* XXX spec requires a complete declaration. */
     115int     sigreturn(const struct __ucontext *);
     116int     sigsetmask(int);
     117int     sigstack(const struct sigstack *, struct sigstack *);
     118int     sigvec(int, struct sigvec *, struct sigvec *);
     119void    psignal(unsigned int, const char *);
     120#endif
     121
     122/* bird: standard call which BSD doesn't prototype. */
     123#if __XSI_VISIBLE
     124int     sighold(int);
     125int     sigignore(int);
     126int     sigrelse(int);
     127#endif
     128#if __BSD_VISIBLE && !defined(_XOPEN_SOURCE) && !defined(sigpause)
     129int     __sigpause_bsd(int);
     130#define sigpause(mask) __sigpause_bsd(mask)
     131#endif
     132/* bird: end */
     133
     134__END_DECLS
     135
     136#endif /* !_SIGNAL_H_ */
     137
     138#else  /* !__NEW_SIGNALS__ */
     139
    1140/* signal.h (emx+gcc) */
    2141
    … …  
    18157
    19158#endif /* not _SIGNAL_H */
     159
     160#endif /* !__NEW_SIGNALS__ */

  • trunk/src/emx/include/sys/limits.h

    • Property cvs2svn:cvs-rev changed from 1.1 to 1.2
    r1573 r1574  
    3636/** @file
    3737 * FreeBSD 5.1
     38 * @changed bird: added RTSIG_MAX (real time signals)
    3839 */
    3940
    … …  
    99100#endif
    100101
     102/* bird: realtime signals */
     103#define RTSIG_MAX       __RTSIG_MAX
     104
    101105#endif /* !_SYS_LIMITS_H_ */

  • trunk/src/emx/include/sys/select.h

    • Property cvs2svn:cvs-rev changed from 1.7 to 1.8
    r1573 r1574  
    1010
    1111#include <sys/cdefs.h>
     12#ifdef __NEW_SIGNALS__
     13#include <sys/_sigset.h>
     14
     15#ifndef _SIGSET_T_DECLARED
     16#define _SIGSET_T_DECLARED
     17/** Signal set. */
     18typedef __sigset_t sigset_t;
     19#endif
     20
     21#else /* !__NEW_SIGNALS__ */
    1222
    1323/** Define sigset_t here for pselect(). */
    … …  
    1626typedef unsigned long sigset_t;
    1727#endif
     28
     29#endif /* !__NEW_SIGNALS__ */
     30
    1831
    1932/** Define the number of file handles in the select buffer.

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

    • Property cvs2svn:cvs-rev changed from 1.2 to 1.3
    r1573 r1574  
     1#ifdef __NEW_SIGNALS__
     2/* $Id: $ */
     3/** @file
     4 *
     5 * BSD compatible.
     6 *
     7 *
     8 * Copyright (c) 2004 knut st. osmundsen <bird-srcspam@anduin.net>
     9 *
     10 *
     11 * This file is part of InnoTek LIBC.
     12 *
     13 * InnoTek LIBC is free software; you can redistribute it and/or modify
     14 * it under the terms of the GNU Lesser General Public License as published
     15 * by the Free Software Foundation; either version 2 of the License, or
     16 * (at your option) any later version.
     17 *
     18 * InnoTek LIBC is distributed in the hope that it will be useful,
     19 * but WITHOUT ANY WARRANTY; without even the implied warranty of
     20 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     21 * GNU Lesser General Public License for more details.
     22 *
     23 * You should have received a copy of the GNU Lesser General Public License
     24 * along with InnoTek LIBC; if not, write to the Free Software
     25 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
     26 *
     27 */
     28
     29
     30#ifndef _SYS_SIGNAL_H_
     31#define _SYS_SIGNAL_H_
     32
     33/*******************************************************************************
     34*   Header Files                                                               *
     35*******************************************************************************/
     36#include <sys/cdefs.h>
     37#include <sys/_types.h>
     38#include <machine/signal.h>
     39
     40
     41/*******************************************************************************
     42*   Defined Constants And Macros                                               *
     43*******************************************************************************/
     44/** @defgroup sys_signal_h_signo   Signal numbers.
     45 * @{
     46 */
     47#if __XSI_VISIBLE || __POSIX_VISIBLE
     48#define SIGHUP    1     /** POSIX: Hangup */
     49#endif
     50#define SIGINT    2     /** ANSI: Interrupt (Ctrl-C) */
     51#if __XSI_VISIBLE || __POSIX_VISIBLE
     52#define SIGQUIT   3     /** POSIX: Quit */
     53#endif
     54#define SIGILL    4     /** ANSI: Illegal instruction */
     55#if __XSI_VISIBLE
     56#define SIGTRAP   5     /** POSIX: Single step (debugging) */
     57#endif
     58#define SIGABRT   6     /** ANSI: abort () */
     59#if __BSD_VISIBLE
     60#define SIGIOT SIGABRT  /** BSD 4.2 */
     61#define SIGEMT    7     /** BSD: EMT instruction */
     62#endif
     63#define SIGFPE    8     /** ANSI: Floating point */
     64#if __XSI_VISIBLE || __POSIX_VISIBLE
     65#define SIGKILL   9     /** POSIX: Kill process */
     66#endif
     67#if __XSI_VISIBLE || __POSIX_VISIBLE >= 200112
     68#define SIGBUS   10     /** BSD 4.2: Bus error */
     69#endif
     70#define SIGSEGV  11     /** ANSI: Segmentation fault */
     71#if __BSD_VISIBLE
     72#define SIGSYS   12     /** Invalid argument to system call */
     73#endif
     74#if __XSI_VISIBLE || __POSIX_VISIBLE
     75#define SIGPIPE  13     /** POSIX: Broken pipe. */
     76#define SIGALRM  14     /** POSIX: Alarm. */
     77#endif
     78#define SIGTERM  15     /** ANSI: Termination, process killed */
     79#if __XSI_VISIBLE || __POSIX_VISIBLE >= 200112
     80#define SIGURG   16     /** POSIX/BSD: urgent condition on IO channel */
     81#endif
     82#if __XSI_VISIBLE || __POSIX_VISIBLE
     83#define SIGSTOP  17     /** POSIX: Sendable stop signal not from tty. unblockable. */
     84#define SIGTSTP  18     /** POSIX: Stop signal from tty. */
     85#define SIGCONT  19     /** POSIX: Continue a stopped process. */
     86#define SIGCHLD  20     /** POSIX: Death or stop of a child process. (EMX: 18) */
     87#define SIGCLD SIGCHLD  /** System V */
     88#define SIGTTIN  21     /** POSIX: To readers pgrp upon background tty read. */
     89#define SIGTTOU  22     /** POSIX: To readers pgrp upon background tty write. */
     90#endif
     91#if __BSD_VISIBLE
     92#define SIGIO    23     /** BSD: Input/output possible signal. */
     93#endif
     94#if __XSI_VISIBLE
     95#define SIGXCPU  24     /** BSD 4.2: Exceeded CPU time limit. */
     96#define SIGXFSZ  25     /** BSD 4.2: Exceeded file size limit. */
     97#define SIGVTALRM 26    /** BSD 4.2: Virtual time alarm. */
     98#define SIGPROF  27     /** BSD 4.2: Profiling time alarm. */
     99#endif
     100#if __BSD_VISIBLE
     101#define SIGWINCH 28     /** BSD 4.3: Window size change (not implemented). */
     102#define SIGINFO  29     /** BSD 4.3: Information request. */
     103#endif
     104#if __XSI_VISIBLE || __POSIX_VISIBLE
     105#define SIGUSR1  30     /** POSIX: User-defined signal #1 */
     106#define SIGUSR2  31     /** POSIX: User-defined signal #2 */
     107#endif
     108#define SIGBREAK 32     /** OS/2: Break (Ctrl-Break). (EMX: 21) */
     109#if __BSD_VISIBLE
     110#define NSIG     33     /** Number of old style signals (counting zero). */
     111#endif
     112
     113#define SIGRTMIN 33     /** First real time signal. */
     114#define SIGRTMAX 63     /** Last real time signal (inclusive) */
     115/** @} */
     116
     117
     118/** @defgroup sys_signal_h_sighnd  Fake Signal Functions
     119 * @{
     120 */
     121#define SIG_ERR ((void (*)(int))-1)     /** Failure. */
     122#define SIG_DFL ((void (*)(int))0)      /** Default action. */
     123#define SIG_IGN ((void (*)(int))1)      /** Ignore signal. */
     124/* 2 is reserved for BSD internal use */
     125#if __BSD_VISIBLE || __POSIX_VISIBLE >= 200112 /** @todo check specs on SIG_HOLD. */
     126#define SIG_HOLD ((void (*)(int))3)
     127#endif
     128#ifdef __BSD_VISIBLE
     129#define SIG_ACK ((void (*)(int))4)      /** OS/2: Acknowledge a signal. */
     130#endif
     131/** @} */
     132
     133
     134/** @defgroup sys_signal_h_sigev    Signal Event Notification Types.
     135 * See struct sigevent.
     136 * @{
     137 */
     138#define SIGEV_NONE      0               /* No async notification */
     139#define SIGEV_SIGNAL    1               /* Generate a queued signal */
     140#define SIGEV_THREAD    2               /* Deliver via thread creation. */
     141/** @} */
     142
     143
     144/** @defgroup sys_signal_h_sigaction_flags  Signal Action Flags.
     145 * @{
     146 */
     147#if __XSI_VISIBLE
     148/** Take signal on a registerd stack_t. */
     149#define SA_ONSTACK          0x00000001
     150/** Restart system call on signal return. Not implemented on OS/2. */
     151#define SA_RESTART          0x00000002
     152/** Reset signal handler to SIG_DFL when deliving the signal. */
     153#define SA_RESETHAND        0x00000004
     154/** Don't mask the signal which is being delivered. */
     155#define SA_NODEFER          0x00000010
     156/** Don't keep zombies around for wait*(). Not implmented on OS/2. */
     157#define SA_NOCLDWAIT        0x00000020
     158/** Signal the handler with the full set of arguments. */
     159#define SA_SIGINFO          0x00000040
     160#endif
     161#if __XSI_VISIBLE || __POSIX_VISIBLE
     162/** Do not generate SIGCHLD on child stop. */
     163#define SA_NOCLDSTOP        0x00000008
     164#endif
     165/** Block the signal (OS/2 legacy mode). */
     166#define SA_ACK              0x10000000
     167/** EMX compatibility. */
     168#define SA_SYSV             SA_RESETHAND
     169/** @} */
     170
     171
     172#if __BSD_VISIBLE
     173/** #defgroup sys_signal_h_sigval_flags     Signal Value Flags.
     174 * BSD 4.3 compatibility.
     175 * @{
     176 */
     177#define SV_ONSTACK          SA_ONSTACK
     178/** opposite sense. */
     179#define SV_INTERRUPT        SA_RESTART
     180#define SV_RESETHAND        SA_RESETHAND
     181#define SV_NODEFER          SA_NODEFER
     182#define SV_NOCLDSTOP        SA_NOCLDSTOP
     183#define SV_SIGINFO          SA_SIGINFO
     184/** @} */
     185#endif
     186
     187
     188/** @defgroup   sys_signal_h_stack_t_flags  Signal Stack Flags. (ss_flags)
     189 * @{
     190 */
     191/** Deliver signal on alternate stack. */
     192#define SS_ONSTACK          0x00000001
     193/** Do not take signal on alternate stack. */
     194#define SS_DISABLE          0x00000004
     195/** @} */
     196/** Recommended size for an alternate signal stack. (See stack_t) */
     197#define SIGSTKSZ            (0x10000)
     198
     199
     200
     201#if __BSD_VISIBLE || __POSIX_VISIBLE > 0 && __POSIX_VISIBLE <= 200112
     202/** Convert signo to a signal mask for use with sigblock(). */
     203#define sigmask(signo)          (1 << ((signo) - 1))
     204#endif
     205
     206#if __BSD_VISIBLE
     207#define BADSIG          SIG_ERR
     208#endif
     209
     210#if __POSIX_VISIBLE || __XSI_VISIBLE
     211/*
     212 * Flags for sigprocmask:
     213 */
     214/** @defgroup   sys_signal_h_sigprocmask_flags  Flags for sigprocmask().
     215 * @{
     216 */
     217/** Block specified signal set. */
     218#define SIG_BLOCK           1
     219/** Unblock specified signal set. */
     220#define SIG_UNBLOCK         2
     221/** Set specified signal set. */
     222#define SIG_SETMASK         3
     223#endif
     224
     225
     226
     227/** @defgroup sys_signal_h_si_code  siginfo_t.si_code values.
     228 * @{
     229 */
     230
     231/** @defgroup sys_signal_h_si_code_sigill   siginfo_t.si_code values - SIGILL
     232 * @{ */
     233/** Illegal opcode. */
     234#define ILL_ILLOPC      0x80001001
     235/** Illegal operand. */
     236#define ILL_ILLOPN      0x80001002
     237/** Illegal addressing mode. */
     238#define ILL_ILLADR      0x80001003
     239/** Illegal trap. */
     240#define ILL_ILLTRP      0x80001004
     241/** Privileged opcode. */
     242#define ILL_PRVOPC      0x80001005
     243/** Privileged register. */
     244#define ILL_PRVREG      0x80001006
     245/** Coprocessor error. */
     246#define ILL_COPROC      0x80001007
     247/** Internal stack error. */
     248#define ILL_BADSTK      0x80001008
     249/** @} */
     250
     251
     252/** @defgroup sys_signal_h_si_code_sigfpe   siginfo_t.si_code values - SIGILL
     253 * @{ */
     254/** see machine/trap.h. */
     255/** @} */
     256
     257
     258/** @defgroup sys_signal_h_si_code_sigsegv  siginfo_t.si_code values - SIGSEGV
     259 * @{ */
     260/** Address not mapped to object. */
     261#define SEGV_MAPERR     0x80003001
     262/** Invalid permissions for mapped object. */
     263#define SEGV_ACCERR     0x80003002
     264/** @} */
     265
     266
     267/** @defgroup sys_signal_h_si_code_sigbus  siginfo_t.si_code values - SIGBUS
     268 * @{ */
     269/** Invalid address alignment. */
     270#define BUS_ADRALN      0x80004001
     271/** Nonexistent physical address. */
     272#define BUS_ADRERR      0x80004002
     273/** Object-specific hardware error. */
     274#define BUS_OBJERR      0x80004003
     275/** @} */
     276
     277
     278/** @defgroup sys_signal_h_si_code_sigtrap siginfo_t.si_code values - SIGTRAP
     279 * @{ */
     280/** Process breakpoint. */
     281#define TRAP_BRKPT      0x80005001
     282/** Process trace trap. */
     283#define TRAP_TRACE      0x80005002
     284/** @} */
     285
     286
     287/** @defgroup sys_signal_h_si_code_sigchild siginfo_t.si_code values - SIGCHLD
     288 * @{ */
     289/** Child has exited. */
     290#define CLD_EXITED      0x80006001
     291/** Child has terminated abnormally and did not create a core file. */
     292#define CLD_KILLED      0x80006002
     293/** Child has terminated abnormally and created a core file. */
     294#define CLD_DUMPED      0x80006003
     295/** Traced child has trapped. */
     296#define CLD_TRAPPED     0x80006004
     297/** Child has stopped. */
     298#define CLD_STOPPED     0x80006005
     299/** Stopped child has continued. */
     300#define CLD_CONTINUED   0x80006006
     301/** @} */       
     302
     303
     304/** @defgroup sys_signal_h_si_code_sigpoll siginfo_t.si_code values - SIGPOLL
     305 * @{ */
     306/** Data input available. */
     307#define POLL_IN         0x80007001
     308/** Output buffers available. */
     309#define POLL_OUT        0x80007002
     310/** Input message available. */
     311#define POLL_MSG        0x80007003
     312/** I/O error. */
     313#define POLL_ERR        0x80007004
     314/** High priority input available. */
     315#define POLL_PRI        0x80007005
     316/** Device disconnected. */
     317#define POLL_HUP        0x80007006
     318/** @} */
     319
     320
     321/** @defgroup sys_signal_h_siginfo_codes    Signal Info Codes (si_code).
     322 * @{ */
     323#if __POSIX_VISIBLE || __XSI_VISIBLE
     324/** Sent by kill() or raise(). */
     325#define SI_USER             0x00010001
     326/** Sent by sigqueue(). */
     327#define SI_QUEUE            0x00010002
     328/** Sent cause a timer expired. */
     329#define SI_TIMER            0x00010003
     330/** Sent upon AIO completion. */
     331#define SI_ASYNCIO          0x00010004
     332/** Sent upon real time mesq state change. */
     333#define SI_MESGQ            0x00010005
     334#endif
     335#if __BSD_VISIBLE
     336/** No idea. */
     337#define SI_UNDEFINED        0x00000000
     338#endif
     339/** @} */
     340
     341/** @} */
     342
     343
     344/*******************************************************************************
     345*   Structures and Typedefs                                                    *
     346*******************************************************************************/
     347#if __POSIX_VISIBLE || __XSI_VISIBLE
     348#ifndef _SIGSET_T_DECLARED
     349#define _SIGSET_T_DECLARED
     350/** Signal set. */
     351typedef __sigset_t sigset_t;
     352#endif
     353#endif
     354
     355
     356#if __POSIX_VISIBLE >= 199309 || __XSI_VISIBLE >= 500
     357/** Type for a value associated with a signal. */
     358typedef union sigval
     359{
     360    int     sigval_int;
     361    void   *sigval_ptr;
     362} sigval_t;
     363#endif
     364
     365
     366#if __POSIX_VISIBLE >= 199309
     367/** Signal event. */
     368typedef struct sigevent
     369{
     370    /** Notification type. */
     371    int             sigev_notify;
     372    /** Signal number. */
     373    int             sigev_signo;
     374    /** Signal value. */
     375    union sigval    sigev_value;
     376    /** Thread Function. */
     377    void          (*sigev_notify_function)(sigval_t);
     378    /** Thread Attributes. */
     379    void           *sigev_notify_attributes;
     380} sigevent_t;
     381#endif
     382
     383
     384#if __XSI_VISIBLE || __POSIX_VISIBLE >= 199309
     385/**
     386 * Signal info.
     387 */
     388typedef struct __siginfo
     389{
     390    /** Signal number. */
     391    int             si_signo;
     392    /** Associated errno. */
     393    int             si_errno;
     394    /** Signal code. (See SI_* and FPE_* macros.) */
     395    int             si_code;
     396    /** Timestamp when the signal was generated - LIBC extension. */
     397    unsigned        si_timestamp;
     398    /** Process sending the signal. */
     399    __pid_t         si_pid;
     400    /** Thread sending the signal - LIBC extension. */
     401    unsigned        si_tid;
     402    /** User sending the signal (ruid). (Usually 0 for OS/2) */
     403    __uid_t         si_uid;
     404    /** Exit value. (SIGCHLD) */
     405    int             si_status;
     406    /** Pointer to the faulting instruction or memory reference. (SIGSEGV, SIGILL, SIGFPE, SIGBUS) */
     407    void           *si_addr;
     408    /** Signal value. */
     409    union sigval    si_value;
     410    /** Band event for SIGPOLL. */
     411    long            si_band;
     412    /** Filehandle for SIGPOLL. */
     413    int             si_fd;
     414    /** Reserve a little bit for future usage. */
     415    unsigned        auReserved[4];
     416} siginfo_t;
     417#endif
     418
     419
     420#if __POSIX_VISIBLE || __XSI_VISIBLE
     421struct __siginfo;
     422
     423/** Signal action structure for sigaction(). */
     424struct sigaction
     425{
     426    /** Two handler prototypes, __sa_handler is the exposed one,
     427     * while __sa_sigaction is the one used internally. The two extra
     428     * arguments will not cause any trouble because of the nature of
     429     * __cdecl on i386.
     430     */
     431    union
     432    {
     433        /** New style handler. First arg is signal number, second is signal
     434         * info, third is signal specific (I think). */
     435        void  (*__sa_sigaction)(int, struct __siginfo *, void *);
     436        /** Old style handler. First arg is signal number. */
     437        void  (*__sa_handler)(int);
     438    }  __sigaction_u;
     439    /** Signal mask to apply when executing the action. */
     440    sigset_t    sa_mask;
     441    /** Signal action flags. (See SA_* macros.) */
     442    int         sa_flags;
     443};
     444#define sa_handler      __sigaction_u.__sa_handler
     445#endif
     446
     447
     448#if __BSD_VISIBLE
     449/** BSD 4.3 compatibility.
     450 * This structure is identical to sigaction.
     451 */
     452struct sigvec
     453{
     454    /** See sa_sigaction in struct sigaction. */
     455    void      (*sv_handler)(int, struct __siginfo *, void *);
     456    /** See sa_mask in struct sigaction. */
     457    int         sv_mask;
     458    /** See sa_flags in struct sigaction. */
     459    int         sv_flags;
     460};
     461#define sv_onstack          sv_flags
     462#endif
     463
     464
     465#if __XSI_VISIBLE
     466/*
     467 * Structure used in sigaltstack call.
     468 */
     469#if __BSD_VISIBLE
     470typedef struct sigaltstack
     471#else
     472typedef struct
     473#endif
     474{
     475    /** Stack base pointer. */
     476    void       *ss_sp;
     477    /** Stack size. */
     478    __size_t    ss_size;
     479    /** Flags. (SS_DISABLE and/or SS_ONSTACK) */
     480    int         ss_flags;
     481} stack_t;
     482#endif
     483
     484
     485#if __XSI_VISIBLE
     486/** Structure for sigstack(). obsolete. */
     487struct sigstack
     488{
     489    /** Pointer to stack base. */
     490    void       *ss_sp;
     491    /** On stack indicator. Non zero if executing on this stack. */
     492    int         ss_onstack;
     493};
     494#endif
     495
     496
     497/*******************************************************************************
     498*   Functions                                                                  *
     499*******************************************************************************/
     500
     501__BEGIN_DECLS
     502void (*signal(int, void (*)(int)))(int);
     503
     504void (*bsd_signal(int, void (*)(int)))(int);
     505void (*_signal_sysv(int, void (*)(int)))(int);
     506void (*_signal_os2(int, void (*)(int)))(int);
     507
     508/** @define __LIBC_SIGNAL_SYSV
     509 * #define __LIBC_SIGNAL_SYSV to use System V style signal. */
     510#ifdef __LIBC_SIGNAL_SYSV
     511static inline void (*signal (int iSignalNo, void (*pfnHandler)(int)))(int)
     512{ return _signal_sysv(iSignalNo, pfnHandler); }
     513#endif
     514
     515/** @define __LIBC_SIGNAL_OS2
     516 * #define __LIBC_SIGNAL_OS2 to use System V style signal. */
     517#ifdef __LIBC_SIGNAL_OS2
     518static inline void (*signal (int iSignalNo, void (*pfnHandler)(int)))(int)
     519{ return _signal_os2(iSignalNo, pfnHandler); }
     520#endif
     521
     522__END_DECLS
     523
     524
     525#if 0  /** @todo various emx stuff. */
     526#define SIGPTRACENOTIFY 128     /* Notification from ptrace() */
     527#define SIGTY           void
     528#endif
     529
     530#endif /* not _SYS_SIGNAL_H */
     531
     532
     533#else /* !__NEW_SIGNALS__ */
     534
     535
    1536/* sys/signal.h (emx+gcc) */
    2537
    … …  
    121656
    122657#endif /* not _SYS_SIGNAL_H */
     658
     659
     660#endif /* !__NEW_SIGNALS__ */
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