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/*
* This file is part of faultd.
*
* Copyright © 2017 Samsung Electronics
*
* 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.
*/
#ifndef FAULTD_COMMON_H
#define FAULTD_COMMON_H
#include <ejdb/bson.h>
#include <stdlib.h>
#include <time.h>
#include <errno.h>
#include <systemd/sd-id128.h>
#include "list.h"
#include "uref.h"
/*
* Value taken from linux kernel.
* This value should be never returned to the caller so we may use
* it for our internal purpouse
*/
#define EPROBE_DEFER 517
/* STR and CONCAT macros need two levels to accept macros as
arguments */
#define _STR(A) #A
#define STR(A) _STR(A)
#define _CONCAT(A, B) A ## B
#define CONCAT(A, B) _CONCAT(A, B)
#define ARRAY_SIZE(a) (sizeof(a)/sizeof(*a))
#define BSON_OID_IS_ZERO(o) (o.ints[0] == 0 && \
o.ints[1] == 0 && \
o.ints[2] == 0)
#ifndef offsetof
#define offsetof(type, member) __builtin_offsetof(type, member)
#endif /* offsetof */
#ifndef container_of
#define container_of(ptr, type, field) ({ \
const typeof(((type *)0)->field) *member = (ptr); \
(type *)((char *)member - offsetof(type, field)); \
})
#endif /* container_of */
#define _cleanup_(x) __attribute__((cleanup(x)))
static inline void freep(void *p)
{
free(*(void **)p);
}
#define _cleanup_free_ _cleanup_(freep)
enum faultd_type {
TYPE_OID,
TYPE_STRING,
TYPE_INT,
TYPE_TIMESPEC,
TYPE_TIME_T,
TYPE_UUID,
TYPE_OBJECT,
};
typedef union {
bson_oid_t bson;
sd_id128_t uuid;
} faultd_oid_t;
#define FAULTD_OID_IS_ZERO(o) (o.bson.ints[0] == 0 && \
o.bson.ints[1] == 0 && \
o.bson.ints[2] == 0)
struct faultd_object {
char *key;
int type;
union {
faultd_oid_t oid;
char *s;
int i;
struct timespec ts;
time_t time;
sd_id128_t uuid;
struct list_head children;
} val;
struct uref uref;
struct list_head node;
};
static inline void faultd_object_unref(struct faultd_object *obj)
{
if (!obj)
return;
uref_put(&obj->uref);
}
static inline struct faultd_object *faultd_object_ref(struct faultd_object *obj)
{
if (!obj)
return NULL;
uref_get(&obj->uref);
return obj;
}
int faultd_object_new(struct faultd_object **obj);
void faultd_object_init(struct faultd_object *obj);
void faultd_object_destroy(struct faultd_object *obj);
int faultd_object_append_new(struct faultd_object *parent, const char *key,
int type, void *val);
int faultd_object_append_string(struct faultd_object *obj, const char *key,
const char *val);
int faultd_object_append_object(struct faultd_object *obj, const char *key,
struct faultd_object *val);
static inline int faultd_object_append_oid(struct faultd_object *obj,
const char *key, faultd_oid_t *oid)
{
return faultd_object_append_new(obj, key, TYPE_OID, oid);
}
static inline int faultd_object_append_int(struct faultd_object *obj,
const char *key, int val)
{
return faultd_object_append_new(obj, key, TYPE_INT, &val);
}
static inline int faultd_object_append_time_t(struct faultd_object *obj,
const char *key, time_t val)
{
return faultd_object_append_new(obj, key, TYPE_TIME_T, &val);
}
static inline int faultd_object_append_timespec(struct faultd_object *obj,
const char *key,
struct timespec *val)
{
return faultd_object_append_new(obj, key, TYPE_TIMESPEC, val);
}
static inline int faultd_object_append_uuid(struct faultd_object *obj,
const char *key, sd_id128_t *val)
{
return faultd_object_append_new(obj, key, TYPE_UUID, val);
}
int faultd_object_get_val(struct faultd_object *obj, const char *key,
int type, void *val);
static inline int faultd_object_get_string(struct faultd_object *obj,
const char *key, char **val)
{
return faultd_object_get_val(obj, key, TYPE_STRING, val);
}
static inline int faultd_object_get_oid(struct faultd_object *obj,
const char *key, faultd_oid_t *val)
{
return faultd_object_get_val(obj, key, TYPE_OID, val);
}
static inline int faultd_object_get_int(struct faultd_object *obj,
const char *key, int *val)
{
return faultd_object_get_val(obj, key, TYPE_INT, val);
}
static inline int faultd_object_get_timespec(struct faultd_object *obj,
const char *key, struct timespec *val)
{
return faultd_object_get_val(obj, key, TYPE_TIMESPEC, val);
}
static inline int faultd_object_get_time_t(struct faultd_object *obj,
const char *key, time_t *val)
{
return faultd_object_get_val(obj, key, TYPE_TIME_T, val);
}
static inline int faultd_object_get_uuid(struct faultd_object *obj,
const char *key, sd_id128_t *val)
{
return faultd_object_get_val(obj, key, TYPE_UUID, val);
}
int faultd_object_get_object(struct faultd_object *obj, const char *key, struct faultd_object **val);
int faultd_object_fill_empty(struct faultd_object *obj);
int faultd_oid_from_string(faultd_oid_t *oid, const char *s);
#endif /* FAULTD_COMMON_H */
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