294 lines
8.4 KiB
C
294 lines
8.4 KiB
C
/* signal.h
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Copyright 2003, 2004, 2005, 2006, 2007, 2008, 2010, 2011, 2012, 2013 Red
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Hat, Inc.
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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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#ifndef _CYGWIN_SIGNAL_H
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#define _CYGWIN_SIGNAL_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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struct _fpstate
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{
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unsigned long cw;
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unsigned long sw;
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unsigned long tag;
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unsigned long ipoff;
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unsigned long cssel;
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unsigned long dataoff;
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unsigned long datasel;
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unsigned char _st[80];
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unsigned long nxst;
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};
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struct ucontext
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{
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unsigned long cr2;
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unsigned long dr0;
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unsigned long dr1;
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unsigned long dr2;
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unsigned long dr3;
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unsigned long dr6;
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unsigned long dr7;
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struct _fpstate fpstate;
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unsigned long gs;
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unsigned long fs;
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unsigned long es;
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unsigned long ds;
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unsigned long edi;
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unsigned long esi;
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unsigned long ebx;
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unsigned long edx;
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unsigned long ecx;
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unsigned long eax;
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unsigned long ebp;
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unsigned long eip;
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unsigned long cs;
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unsigned long eflags;
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unsigned long esp;
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unsigned long ss;
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unsigned char _internal;
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unsigned long oldmask;
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};
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#define __COPY_CONTEXT_SIZE ((unsigned) &((struct ucontext *) 0)->_internal)
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typedef union sigval
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{
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int sival_int; /* integer signal value */
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void *sival_ptr; /* pointer signal value */
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} sigval_t;
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typedef struct sigevent
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{
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sigval_t sigev_value; /* signal value */
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int sigev_signo; /* signal number */
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int sigev_notify; /* notification type */
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void (*sigev_notify_function) (sigval_t); /* notification function */
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pthread_attr_t *sigev_notify_attributes; /* notification attributes */
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} sigevent_t;
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#pragma pack(push,4)
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struct _sigcommune
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{
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__uint32_t _si_code;
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void *_si_read_handle;
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void *_si_write_handle;
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void *_si_process_handle;
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__extension__ union
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{
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int _si_fd;
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void *_si_pipe_fhandler;
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char *_si_str;
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};
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};
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typedef struct
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{
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int si_signo; /* signal number */
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int si_code; /* signal code */
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pid_t si_pid; /* sender's pid */
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uid_t si_uid; /* sender's uid */
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int si_errno; /* errno associated with signal */
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__extension__ union
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{
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__uint32_t __pad[32]; /* plan for future growth */
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struct _sigcommune _si_commune; /* cygwin ipc */
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__extension__ union
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{
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/* timers */
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struct
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{
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union
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{
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struct
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{
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timer_t si_tid; /* timer id */
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unsigned int si_overrun; /* overrun count */
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};
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sigval_t si_sigval; /* signal value */
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sigval_t si_value; /* signal value */
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};
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};
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};
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/* SIGCHLD */
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__extension__ struct
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{
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int si_status; /* exit code */
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clock_t si_utime; /* user time */
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clock_t si_stime; /* system time */
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};
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__extension__ struct
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{
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/* core dumping signals */
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void *si_addr; /* faulting address */
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void *si_cyg; /* pointer to block containing
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cygwin-special info */
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};
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};
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} siginfo_t;
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#pragma pack(pop)
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enum
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{
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SI_USER = 0, /* sent by kill, raise, pthread_kill */
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SI_ASYNCIO = 2, /* sent by AIO completion (currently
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unimplemented) */
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SI_MESGQ, /* sent by real time mesq state change
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(currently unimplemented) */
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SI_TIMER, /* sent by timer expiration */
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SI_QUEUE, /* sent by sigqueue (currently
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unimplemented) */
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SI_KERNEL, /* sent by system */
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ILL_ILLOPC, /* illegal opcode */
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ILL_ILLOPN, /* illegal operand */
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ILL_ILLADR, /* illegal addressing mode */
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ILL_ILLTRP, /* illegal trap*/
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ILL_PRVOPC, /* privileged opcode */
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ILL_PRVREG, /* privileged register */
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ILL_COPROC, /* coprocessor error */
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ILL_BADSTK, /* internal stack error */
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FPE_INTDIV, /* integer divide by zero */
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FPE_INTOVF, /* integer overflow */
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FPE_FLTDIV, /* floating point divide by zero */
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FPE_FLTOVF, /* floating point overflow */
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FPE_FLTUND, /* floating point underflow */
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FPE_FLTRES, /* floating point inexact result */
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FPE_FLTINV, /* floating point invalid operation */
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FPE_FLTSUB, /* subscript out of range */
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SEGV_MAPERR, /* address not mapped to object */
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SEGV_ACCERR, /* invalid permissions for mapped object */
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BUS_ADRALN, /* invalid address alignment. */
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BUS_ADRERR, /* non-existant physical address. */
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BUS_OBJERR, /* object specific hardware error. */
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CLD_EXITED, /* child has exited */
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CLD_KILLED, /* child was killed */
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CLD_DUMPED, /* child terminated abnormally */
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CLD_TRAPPED, /* traced child has trapped */
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CLD_STOPPED, /* child has stopped */
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CLD_CONTINUED /* stopped child has continued */
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};
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enum
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{
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SIGEV_SIGNAL = 0, /* a queued signal, with an application
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defined value, is generated when the
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event of interest occurs */
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SIGEV_NONE, /* no asynchronous notification is
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delivered when the event of interest
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occurs */
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SIGEV_THREAD /* a notification function is called to
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perform notification */
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};
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typedef __uint32_t sigset_t;
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typedef void (*_sig_func_ptr)(int);
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struct sigaction
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{
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__extension__ union
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{
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_sig_func_ptr sa_handler; /* SIG_DFL, SIG_IGN, or pointer to a function */
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void (*sa_sigaction) ( int, siginfo_t *, void * );
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};
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sigset_t sa_mask;
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int sa_flags;
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};
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#define SA_NOCLDSTOP 1 /* Do not generate SIGCHLD when children
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stop */
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#define SA_SIGINFO 2 /* Invoke the signal catching function
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with three arguments instead of one
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*/
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#define SA_RESTART 0x10000000 /* Restart syscall on signal return */
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#define SA_NODEFER 0x40000000 /* Don't automatically block the signal
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when its handler is being executed */
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#define SA_RESETHAND 0x80000000 /* Reset to SIG_DFL on entry to handler */
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#define SA_ONESHOT SA_RESETHAND /* Historical linux name */
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#define SA_NOMASK SA_NODEFER /* Historical linux name */
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/* Used internally by cygwin. Included here to group everything in one place.
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Do not use. */
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#define _SA_INTERNAL_MASK 0xf000 /* bits in this range are internal */
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#define SIGHUP 1 /* hangup */
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#define SIGINT 2 /* interrupt */
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#define SIGQUIT 3 /* quit */
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#define SIGILL 4 /* illegal instruction (not reset when caught) */
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#define SIGTRAP 5 /* trace trap (not reset when caught) */
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#define SIGABRT 6 /* used by abort */
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#define SIGEMT 7 /* EMT instruction */
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#define SIGFPE 8 /* floating point exception */
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#define SIGKILL 9 /* kill (cannot be caught or ignored) */
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#define SIGBUS 10 /* bus error */
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#define SIGSEGV 11 /* segmentation violation */
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#define SIGSYS 12 /* bad argument to system call */
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#define SIGPIPE 13 /* write on a pipe with no one to read it */
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#define SIGALRM 14 /* alarm clock */
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#define SIGTERM 15 /* software termination signal from kill */
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#define SIGURG 16 /* urgent condition on IO channel */
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#define SIGSTOP 17 /* sendable stop signal not from tty */
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#define SIGTSTP 18 /* stop signal from tty */
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#define SIGCONT 19 /* continue a stopped process */
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#define SIGCHLD 20 /* to parent on child stop or exit */
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#define SIGCLD 20 /* System V name for SIGCHLD */
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#define SIGTTIN 21 /* to readers pgrp upon background tty read */
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#define SIGTTOU 22 /* like TTIN for output if (tp->t_local<OSTOP) */
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#define SIGIO 23 /* input/output possible signal */
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#define SIGPOLL SIGIO /* System V name for SIGIO */
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#define SIGXCPU 24 /* exceeded CPU time limit */
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#define SIGXFSZ 25 /* exceeded file size limit */
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#define SIGVTALRM 26 /* virtual time alarm */
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#define SIGPROF 27 /* profiling time alarm */
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#define SIGWINCH 28 /* window changed */
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#define SIGLOST 29 /* resource lost (eg, record-lock lost) */
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#define SIGPWR SIGLOST /* power failure */
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#define SIGUSR1 30 /* user defined signal 1 */
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#define SIGUSR2 31 /* user defined signal 2 */
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/* Real-Time signals per SUSv3. RT_SIGMAX is defined as 8 in limits.h */
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#define SIGRTMIN 32
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#define SIGRTMAX ((SIGRTMIN) + 0)
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#define NSIG 33 /* signal 0 implied */
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#define SIG_HOLD ((_sig_func_ptr)2) /* Signal in signal mask */
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void psiginfo (const siginfo_t *, const char *);
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int sigwait (const sigset_t *, int *);
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int sigwaitinfo (const sigset_t *, siginfo_t *);
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int sighold (int);
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int sigignore (int);
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int sigrelse (int);
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_sig_func_ptr sigset (int, _sig_func_ptr);
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int sigqueue(pid_t, int, const union sigval);
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int siginterrupt (int, int);
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#ifdef __INSIDE_CYGWIN__
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extern const char *sys_sigabbrev[];
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extern const char *sys_siglist[];
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#else
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extern const char __declspec(dllimport) *sys_sigabbrev[];
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extern const char __declspec(dllimport) *sys_siglist[];
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#endif
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#ifdef __cplusplus
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}
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#endif
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#endif /*_CYGWIN_SIGNAL_H*/
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