libvirt/src/util/virenum.c
Peter Krempa 7489b5e37e util: enum: Add helpers for converting virTristate* to a plain bool
The helpers will update the passed boolean if the tristate's value is
not _ABSENT.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2021-12-01 13:39:47 +01:00

141 lines
2.9 KiB
C

/*
* virenum.c: enum value conversion helpers
*
* 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/>.
*/
#include <config.h>
#include "virenum.h"
#include "virstring.h"
#define VIR_FROM_THIS VIR_FROM_NONE
VIR_ENUM_IMPL(virTristateBool,
VIR_TRISTATE_BOOL_LAST,
"default",
"yes",
"no",
);
VIR_ENUM_IMPL(virTristateSwitch,
VIR_TRISTATE_SWITCH_LAST,
"default",
"on",
"off",
);
virTristateBool
virTristateBoolFromBool(bool val)
{
if (val)
return VIR_TRISTATE_BOOL_YES;
else
return VIR_TRISTATE_BOOL_NO;
}
/**
* virTristateBoolToBool:
* @t: a virTristateBool value
* @b: pointer to a boolean to be updated according to the value of @t
*
* The value pointed to by @b is updated if the tristate value @t is not absent.
*/
void
virTristateBoolToBool(virTristateBool t,
bool *b)
{
switch (t) {
case VIR_TRISTATE_BOOL_YES:
*b = true;
break;
case VIR_TRISTATE_BOOL_NO:
*b = false;
break;
case VIR_TRISTATE_BOOL_ABSENT:
case VIR_TRISTATE_BOOL_LAST:
break;
}
}
virTristateSwitch
virTristateSwitchFromBool(bool val)
{
if (val)
return VIR_TRISTATE_SWITCH_ON;
else
return VIR_TRISTATE_SWITCH_OFF;
}
/**
* virTristateSwitchToBool:
* @t: a virTristateSwitch value
* @b: pointer to a boolean to be updated according to the value of @t
*
* The value pointed to by @b is updated if the tristate value @t is not absent.
*/
void
virTristateSwitchToBool(virTristateSwitch t,
bool *b)
{
switch (t) {
case VIR_TRISTATE_SWITCH_ON:
*b = true;
break;
case VIR_TRISTATE_SWITCH_OFF:
*b = false;
break;
case VIR_TRISTATE_SWITCH_ABSENT:
case VIR_TRISTATE_SWITCH_LAST:
break;
}
}
int
virEnumFromString(const char * const *types,
unsigned int ntypes,
const char *type)
{
size_t i;
if (!type)
return -1;
for (i = 0; i < ntypes; i++)
if (STREQ(types[i], type))
return i;
return -1;
}
const char *
virEnumToString(const char * const *types,
unsigned int ntypes,
int type)
{
if (type < 0 || type >= ntypes)
return NULL;
return types[type];
}