lib/signal.c

ソースコードを見る。

関数
static void	sig_cld (int signum)
static void	sig_cld_leave_status (int signum)
void	BlockSignals (BOOL block, int signum)
void(*)(int)	CatchSignal (int signum, void(*handler)(int))
void	CatchChild (void)
void	CatchChildLeaveStatus (void)

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関数

static void sig_cld

(

int

signum

)

[static]

signal.c の 28 行で定義されています。

参照先 CatchSignal()・sys_waitpid().

参照元 CatchChild()・open_sockets_smbd().

{
        while (sys_waitpid((pid_t)-1,(int *)NULL, WNOHANG) > 0)
                ;

        /*
         * Turns out it's *really* important not to
         * restore the signal handler here if we have real POSIX
         * signal handling. If we do, then we get the signal re-delivered
         * immediately - hey presto - instant loop ! JRA.
         */

#if !defined(HAVE_SIGACTION)
        CatchSignal(SIGCLD, sig_cld);
#endif
}

static void sig_cld_leave_status

(

int

signum

)

[static]

signal.c の 49 行で定義されています。

参照先 CatchSignal().

参照元 CatchChildLeaveStatus().

{
        /*
         * Turns out it's *really* important not to
         * restore the signal handler here if we have real POSIX
         * signal handling. If we do, then we get the signal re-delivered
         * immediately - hey presto - instant loop ! JRA.
         */

#if !defined(HAVE_SIGACTION)
        CatchSignal(SIGCLD, sig_cld_leave_status);
#endif
}

void BlockSignals	(	BOOL	block,
		int	signum
	)

signal.c の 67 行で定義されています。

参照元 initialize_async_io_handler()・linux_init_kernel_oplocks()・linux_oplock_receive_message()・listen_for_packets()・main()・message_block()・message_unblock()・open_sockets()・process_aio_queue()・run_dns_queue()・smbc_init_context()・sync_browse_lists().

{
#ifdef HAVE_SIGPROCMASK
        sigset_t set;
        sigemptyset(&set);
        sigaddset(&set,signum);
        sigprocmask(block?SIG_BLOCK:SIG_UNBLOCK,&set,NULL);
#elif defined(HAVE_SIGBLOCK)
        if (block) {
                sigblock(sigmask(signum));
        } else {
                sigsetmask(siggetmask() & ~sigmask(signum));
        }
#else
        /* yikes! This platform can't block signals? */
        static int done;
        if (!done) {
                DEBUG(0,("WARNING: No signal blocking available\n"));
                done=1;
        }
#endif
}

void(*)(int) CatchSignal

(

)

signal.c の 97 行で定義されています。

参照元 another_ldap_try()・CatchChild()・CatchChildLeaveStatus()・create_subnets()・do_file_lock()・dump_core()・fault_report()・fault_setup()・ldap_open_with_timeout()・ldap_search_with_timeout()・main()・message_init()・open_sockets_smbd()・pam_sm_acct_mgmt()・pam_sm_authenticate()・pam_sm_chauthtok()・recv_cldap_netlogon()・send_fs_socket()・sig_cld()・sig_cld_leave_status()・smbldap_search_ext()・start_async_dns()・tdb_chainlock_with_timeout_internal().

{
#ifdef HAVE_SIGACTION
        struct sigaction act;
        struct sigaction oldact;

        ZERO_STRUCT(act);

        act.sa_handler = handler;
#ifdef SA_RESTART
        /*
         * We *want* SIGALRM to interrupt a system call.
         */
        if(signum != SIGALRM)
                act.sa_flags = SA_RESTART;
#endif
        sigemptyset(&act.sa_mask);
        sigaddset(&act.sa_mask,signum);
        sigaction(signum,&act,&oldact);
        return oldact.sa_handler;
#else /* !HAVE_SIGACTION */
        /* FIXME: need to handle sigvec and systems with broken signal() */
        return signal(signum, handler);
#endif
}

void CatchChild

(

void

)

signal.c の 127 行で定義されています。

参照先 CatchSignal()・sig_cld().

参照元 chat_with_program()・fork_child_dc_connect()・fork_domain_child()・open_sockets_smbd()・smbrun_internal()・smbrunsecret()・start_async_dns()・start_filter()・sync_browse_lists()・wins_write_database().

{
        CatchSignal(SIGCLD, sig_cld);
}

void CatchChildLeaveStatus

(

void

)

signal.c の 136 行で定義されています。

参照先 CatchSignal()・sig_cld_leave_status().

参照元 chat_with_program()・smbrun_internal()・smbrunsecret().

{
        CatchSignal(SIGCLD, sig_cld_leave_status);
}

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