mirror of
https://gitlab.com/libvirt/libvirt.git
synced 2024-12-27 16:15:23 +00:00
17c324bd25
The way that virConfSetValue() works (and the way it is even documented) is that the @value pointer is always consumed. However, since the first order pointer is passed it leaves callers in a pickle situation - they always have to set pointer to NULL after calling virConfSetValue() to avoid touching it. Let's switch @value to a double pointer and clear it inside the function. Signed-off-by: Michal Privoznik <mprivozn@redhat.com> Reviewed-by: Ján Tomko <jtomko@redhat.com>
128 lines
4.7 KiB
C
128 lines
4.7 KiB
C
/*
|
|
* virconf.h: parser for a subset of the Python encoded Xen configuration files
|
|
*
|
|
* Copyright (C) 2006, 2007 Red Hat, Inc.
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2.1 of the License, or (at your option) any later version.
|
|
*
|
|
* This library is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with this library. If not, see
|
|
* <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include "virenum.h"
|
|
|
|
/**
|
|
* virConfType:
|
|
* one of the possible type for a value from the configuration file
|
|
*
|
|
* TODO: we probably need a float too.
|
|
*/
|
|
typedef enum {
|
|
VIR_CONF_NONE = 0, /* undefined */
|
|
VIR_CONF_LLONG, /* a long long int */
|
|
VIR_CONF_ULLONG, /* an unsigned long long int */
|
|
VIR_CONF_STRING, /* a string */
|
|
VIR_CONF_LIST, /* a list */
|
|
VIR_CONF_LAST, /* sentinel */
|
|
} virConfType;
|
|
|
|
VIR_ENUM_DECL(virConf);
|
|
|
|
typedef enum {
|
|
VIR_CONF_FLAG_VMX_FORMAT = 1, /* allow ':', '.' and '-' in names for compatibility
|
|
with VMware VMX configuration file, but restrict
|
|
allowed value types to string only */
|
|
VIR_CONF_FLAG_LXC_FORMAT = 2, /* allow '.' in names for compatibility with LXC
|
|
configuration file, restricts allowed value types
|
|
to string only and don't expect quotes for values */
|
|
} virConfFlags;
|
|
|
|
/**
|
|
* virConfValue:
|
|
* a value from the configuration file
|
|
*/
|
|
typedef struct _virConfValue virConfValue;
|
|
struct _virConfValue {
|
|
virConfType type; /* the virConfType */
|
|
virConfValue *next; /* next element if in a list */
|
|
long long l; /* very long integer */
|
|
char *str; /* pointer to 0 terminated string */
|
|
virConfValue *list; /* list of a list */
|
|
};
|
|
|
|
/**
|
|
* virConf *:
|
|
* a pointer to a parsed configuration file
|
|
*/
|
|
typedef struct _virConf virConf;
|
|
|
|
typedef int (*virConfWalkCallback)(const char* name,
|
|
virConfValue *value,
|
|
void *opaque);
|
|
|
|
virConf *virConfNew(void);
|
|
virConf *virConfReadFile(const char *filename, unsigned int flags);
|
|
virConf *virConfReadString(const char *memory,
|
|
unsigned int flags);
|
|
int virConfFree(virConf *conf);
|
|
G_DEFINE_AUTOPTR_CLEANUP_FUNC(virConf, virConfFree);
|
|
void virConfFreeValue(virConfValue *val);
|
|
G_DEFINE_AUTOPTR_CLEANUP_FUNC(virConfValue, virConfFreeValue);
|
|
virConfValue *virConfGetValue(virConf *conf,
|
|
const char *setting);
|
|
|
|
virConfType virConfGetValueType(virConf *conf,
|
|
const char *setting);
|
|
int virConfGetValueString(virConf *conf,
|
|
const char *setting,
|
|
char **value);
|
|
int virConfGetValueStringList(virConf *conf,
|
|
const char *setting,
|
|
bool compatString,
|
|
char ***values);
|
|
int virConfGetValueBool(virConf *conf,
|
|
const char *setting,
|
|
bool *value);
|
|
int virConfGetValueInt(virConf *conf,
|
|
const char *setting,
|
|
int *value);
|
|
int virConfGetValueUInt(virConf *conf,
|
|
const char *setting,
|
|
unsigned int *value);
|
|
int virConfGetValueSizeT(virConf *conf,
|
|
const char *setting,
|
|
size_t *value);
|
|
int virConfGetValueSSizeT(virConf *conf,
|
|
const char *setting,
|
|
ssize_t *value);
|
|
int virConfGetValueLLong(virConf *conf,
|
|
const char *setting,
|
|
long long *value);
|
|
int virConfGetValueULLong(virConf *conf,
|
|
const char *setting,
|
|
unsigned long long *value);
|
|
|
|
int virConfSetValue(virConf *conf,
|
|
const char *setting,
|
|
virConfValue **value);
|
|
int virConfWalk(virConf *conf,
|
|
virConfWalkCallback callback,
|
|
void *opaque);
|
|
int virConfWriteFile(const char *filename,
|
|
virConf *conf);
|
|
int virConfWriteMem(char *memory,
|
|
int *len,
|
|
virConf *conf);
|
|
int virConfLoadConfig(virConf **conf, const char *name);
|