X-Git-Url: https://gerrit.automotivelinux.org/gerrit/gitweb?a=blobdiff_plain;f=src%2Fsystemd.c;fp=src%2Fsystemd.c;h=1adb75ab66dc6e345d4d6445860ae0e9ce40013f;hb=d7e4faba5d1744160d538edd74bc4bdd8a173b1a;hp=0000000000000000000000000000000000000000;hpb=418ba126a955ee38804152c6c905ff200bbc1a92;p=src%2Fapp-framework-binder.git diff --git a/src/systemd.c b/src/systemd.c new file mode 100644 index 00000000..1adb75ab --- /dev/null +++ b/src/systemd.c @@ -0,0 +1,103 @@ +/* + * Copyright (C) 2015-2019 "IoT.bzh" + * Author José Bollo + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#define _GNU_SOURCE + +#include +#include + +#include +#include +#include + +#include "systemd.h" +#include "jobs.h" + +static struct sd_bus *sdbusopen(struct sd_bus **p, int (*f)(struct sd_bus **)) +{ + if (*p == NULL) { + int rc = f(p); + if (rc < 0) { + errno = -rc; + *p = NULL; + } else { + rc = sd_bus_attach_event(*p, systemd_get_event_loop(), 0); + if (rc < 0) { + sd_bus_unref(*p); + errno = -rc; + *p = NULL; + } + } + } + return *p; +} + +struct sd_event *systemd_get_event_loop() +{ + return jobs_get_sd_event(); +} + +struct sd_bus *systemd_get_user_bus() +{ + static struct sd_bus *result = NULL; + return sdbusopen((void*)&result, (void*)sd_bus_open_user); +} + +struct sd_bus *systemd_get_system_bus() +{ + static struct sd_bus *result = NULL; + return sdbusopen((void*)&result, (void*)sd_bus_open_system); +} + +static char **fds_names() +{ + static char *null; + static char **names; + + int rc; + + if (!names) { + rc = sd_listen_fds_with_names(1, &names); + if (rc <= 0) { + errno = -rc; + names = &null; + } + } + return names; +} + +int systemd_fds_init() +{ + errno = 0; + fds_names(); + return -!!errno; +} + +int systemd_fds_for(const char *name) +{ + int idx; + char **names; + + names = fds_names(); + for (idx = 0 ; names[idx] != NULL ; idx++) + if (!strcmp(name, names[idx])) + return idx + SD_LISTEN_FDS_START; + + errno = ENOENT; + return -1; +} +