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[common] added new StringList helper module

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Geoffrey McRae 2019-05-12 16:12:12 +10:00
parent 0090580a64
commit 5d69d2aba9
3 changed files with 107 additions and 1 deletions
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VERSION
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common/include/common/stringlist.h Normal file
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/*
KVMGFX Client - A KVM Client for VGA Passthrough
Copyright (C) 2017-2019 Geoffrey McRae <geoff@hostfission.com>
https://looking-glass.hostfission.com
This program is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free Software
Foundation; either version 2 of the License, or (at your option) any later
version.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License along with
this program; if not, write to the Free Software Foundation, Inc., 59 Temple
Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <stdbool.h>
typedef struct StringList * StringList;
StringList stringlist_new (bool owns_strings);
void stringlist_free (StringList * sl);
int stringlist_push (StringList sl, char * str);
unsigned int stringlist_count(StringList sl);
char * stringlist_at (StringList sl, unsigned int index);

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common/src/stringlist.c Normal file
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/*
KVMGFX Client - A KVM Client for VGA Passthrough
Copyright (C) 2017-2019 Geoffrey McRae <geoff@hostfission.com>
https://looking-glass.hostfission.com
This program is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free Software
Foundation; either version 2 of the License, or (at your option) any later
version.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License along with
this program; if not, write to the Free Software Foundation, Inc., 59 Temple
Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "common/stringlist.h"
#include <stdlib.h>
struct StringList
{
bool owns_strings;
unsigned int size;
unsigned int count;
char ** list;
};
StringList stringlist_new(bool owns_strings)
{
StringList sl = malloc(sizeof(struct StringList));
sl->size = 32;
sl->count = 0;
sl->list = malloc(sizeof(char *) * sl->size);
return sl;
}
void stringlist_free(StringList * sl)
{
if ((*sl)->owns_strings)
for(unsigned int i = 0; i < (*sl)->count; ++i)
free((*sl)->list[i]);
free((*sl)->list);
free((*sl));
*sl = NULL;
}
int stringlist_push (StringList sl, char * str)
{
if (sl->count == sl->size)
{
sl->size += 32;
sl->list = realloc(sl->list, sizeof(char *) * sl->size);
}
unsigned int index = sl->count;
sl->list[sl->count++] = str;
return index;
}
unsigned int stringlist_count(StringList sl)
{
return sl->count;
}
char * stringlist_at(StringList sl, unsigned int index)
{
if (index >= sl->count)
return NULL;
return sl->list[index];
}