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>
112 lines
3.0 KiB
C
112 lines
3.0 KiB
C
/* Generic API for managing svc_t structures
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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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#include <string.h>
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#include "finit.h"
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#include "svc.h"
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/* The registered services are kept in shared memory for easy read-only access
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* by 3rd party APIs. Mostly because of the ability to, from the outside, query
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* liveness state of all daemons that should run. */
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static int svc_counter = 0; /* Number of registered services to monitor. */
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static svc_t *services = NULL; /* List of registered services, in shared memory. */
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/* Connect to/create shared memory area of registered servies */
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static void __connect_shm(void)
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{
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if (!services) {
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services = finit_connect_shm();
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if (!services) {
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/* This should never happen, but if it does we're probably
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* knee-deep in more serious problems already... */
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_e("Failed setting up shared memory for service monitor.\n");
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abort();
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}
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}
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}
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svc_t *svc_new_service (void)
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{
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svc_t *svc = NULL;
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__connect_shm();
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if (svc_counter < MAX_NUM_SVC) {
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svc = &services[svc_counter++];
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memset(svc, 0, sizeof(*svc));
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}
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return svc;
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}
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svc_t *svc_find_by_id (int id)
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{
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__connect_shm();
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if (id >= svc_counter)
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return NULL;
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return &services[id];
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}
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svc_t *svc_find_by_name (char *name)
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{
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int i;
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__connect_shm();
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for (i = 0; i < svc_counter; i++) {
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svc_t *svc = &services[i];
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if (!strncmp(name, svc->cmd, strlen(svc->cmd))) {
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_d("Found a matching svc for %s", name);
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return svc;
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}
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}
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return NULL;
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}
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/* Iterates over all registered services. Get first svc_t by setting @restart */
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svc_t *svc_iterator (int restart)
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{
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static int id = 0;
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__connect_shm();
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if (restart)
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id = 0;
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if (id >= svc_counter)
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return NULL;
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return &services[id++];
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}
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/**
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* Local Variables:
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* compile-command: "gcc -g -DUNITTEST -o unittest svc.c"
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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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