Files
finit/signal.h
T
Joachim Nilsson 077a7e82e0 Debian now boots to X!
finit.conf:
        Use this as /etc/finit.conf on a Debian 6.0 based system with X
        installed and sysklogd instead of rsyslogd.  Works.

services:
        Alternative method for extending the finit boot procedure. Simply
        place this script file in an /etc/finit.d/ directory.  The script
        uses the standard run-parts tool to chain load other start scripts.

helpers.c:
        o New functions:
          - run(): home grown system() replacement
          - run_interactive(): display progress and status when called

        o Bugfix start_process(), make sure to use same signal setup for
          children as in run() and run_interactive(). Also, use execvp()
          instead of execv() to allow searching $PATH for executables.

finit.h:
        o Move signal specific code to new signal.h.
        o Bypass verbosity setting to let echo() always print to screen.

finit.c:
        o Make run_parts() the default, remove external deps, it works.

        o Use run() and run_interactive() to speed up execution further
          on embedded systems where forking is expensive.

        o Kernel cmdline "quiet" should not close STDIO since this makes
          it impossible to run some daemons and start scripts.  Instead,
          we let "quiet" toggle the finit verbosity setting.

        o Remove kernel cmdline "--verbose" (Upstart compat), to be used
          to enable verbose finit when kernel should be quiet.

        o Setup kernel specific settings in /etc/sysctl.conf

        o Fix D-Bus startup problems. Probably what caused X from not
          working initially. Silly rabbit.

        o Use system() workaround to start X, cannot get it to start
          at all using run() or run_interactive() at the moment.

signal.h:
        New file, header file for signal.c.  Was about time.

signal.c:
        Remove blocking of SIGCHLD from sig_setup(), instead we setup
        SIGCHLD early in sig_init() to handle fork() in run() & C:o.

Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
2012-09-20 17:50:53 +02:00

69 lines
2.3 KiB
C

/* Signal management - Be conservative with what finit responds to!
*
* Copyright (c) 2008-2010 Claudio Matsuoka <cmatsuoka@gmail.com>
* Copyright (c) 2008-2012 Joachim Nilsson <troglobit@gmail.com>
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#ifndef FINIT_SIGNAL_H_
#define FINIT_SIGNAL_H_
#define SYNC_SHUTDOWN "/var/lock/finit.shutdown"
#define SYNC_STOPPED "/var/lock/finit.stopped"
#define SETSIG(sa, sig, fun, flags) \
do { \
sa.sa_sigaction = fun; \
sa.sa_flags = SA_SIGINFO | flags; \
sigemptyset(&sa.sa_mask); \
sigaction(sig, &sa, NULL); \
} while (0)
#define IGNSIG(sa, sig, flags) \
do { \
sa.sa_handler = SIG_IGN; \
sa.sa_flags = flags; \
sigemptyset(&sa.sa_mask); \
sigaction(sig, &sa, NULL); \
} while (0)
#define DFLSIG(sa, sig, flags) \
do { \
sa.sa_handler = SIG_DFL; \
sa.sa_flags = flags; \
sigemptyset(&sa.sa_mask); \
sigaction(sig, &sa, NULL); \
} while (0)
void do_shutdown (int sig);
int sig_stopped (void);
void sig_init (void);
void sig_setup (void);
#endif /* FINIT_SIGNAL_H_ */
/**
* Local Variables:
* version-control: t
* indent-tabs-mode: t
* c-file-style: "linux"
* End:
*/