mirror of
https://github.com/troglobit/finit.git
synced 2026-10-01 05:22:48 +07:00
Joachim Nilsson
d21dc2b477
finit.c:
o New service and shell_service stanzas for finit.conf
o Run service_startup() before /etc/finit.d/ hooks
o Run service_monitor() at end of startup
helpers.c:
o Several new functions:
- print_desc() displays a service starting up
- print_result() shows if service started OK or not
- start_process() is used by the services framework
svc.c:
Generic API for managing svc_t structures
ipc.o:
TIPC based framework for communicating with the service monitor.
E.g., to relay (re)configuration signals from a Web/CLI
front-end via finit to one or many setup daemons, and back.
services.c:
Service monitor framework
strlcpy.c:
Secure strncpy() replacement from OpenBSD under the free ISC License.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
93 lines
3.2 KiB
C
93 lines
3.2 KiB
C
/* Service starter and supervisor, inspired by daemontools
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*
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* Copyright (c) 2008-2010 Claudio Matsuoka <cmatsuoka@gmail.com>
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* Copyright (c) 2008-2012 Joachim Nilsson <troglobit@gmail.com>
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#ifndef FINIT_SERVICES_H_
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#define FINIT_SERVICES_H_
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#include <errno.h>
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#include <sys/shm.h> /* shmat() */
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#include <sys/types.h> /* pid_t */
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#include "finit.h"
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#define FINIT_SHM_ID 0x494E4954 /* "INIT", see ascii(7) */
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#define MAX_NUM_SVC 64 /* Enough? */
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#define MAX_NUM_SVC_ARGS 16
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/* Default enable for all services, can be stopped by means
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* of issuing an initctl call. E.g.
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* initctl service <stop|start|restart> */
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typedef struct svc {
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char cmd[64];
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char args[MAX_NUM_SVC_ARGS][64];
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char descr[64];
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pid_t pid;
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int reload;
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int private; /* For svc callbacks to use freely, possibly to store "states". */
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/* Set for known services, otherwise "empty". */
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struct svc_map {
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char *path; /* E.g., "/sbin/snmpd" */
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int (*cb)(struct svc *, int); /* Service callback, e.g. is_snmpd_enabled() */
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int dyn_reload; /* Reload on new dynamic event. */
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int dyn_workaround; /* Ugly/Temporary workaround for dyn-stop/start of serialoverip. */
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int vlans_changed_reload; /* Reload when VLANs change. */
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} reg;
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} svc_t;
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typedef struct svc_map svc_map_t;
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/* Put services array in shm */
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static inline svc_t *finit_connect_shm(void)
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{
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const long ID = FINIT_SHM_ID;
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static void *ptr = (void *)-1;
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if ((void *)-1 == ptr) {
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ptr = shmat (shmget (ID, sizeof(svc_t) * MAX_NUM_SVC, 0600 | IPC_CREAT), NULL, 0);
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if ((void *)-1 == ptr) {
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_d("Failed allocating shared memory, error %d: %s", errno, strerror (errno));
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return NULL;
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}
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}
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return (svc_t *)ptr;
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}
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int service_register (char *line);
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int service_start (svc_t *svc);
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int service_start_by_name (char *name);
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int service_enabled (svc_t *svc, int dynamic);
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void service_startup (void);
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void service_monitor (void);
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#endif /* FINIT_SERVICES_H_ */
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/**
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* Local Variables:
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* version-control: t
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* indent-tabs-mode: t
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* c-file-style: "linux"
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* End:
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*/
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