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/*
Copyright (c) 2014 Red Hat, Inc. <http://www.redhat.com>
This file is part of GlusterFS.
This file is licensed to you under your choice of the GNU Lesser
General Public License, version 3 or any later version (LGPLv3 or
later), or the GNU General Public License, version 2 (GPLv2), in all
cases as published by the Free Software Foundation.
*/
#include <stdarg.h>
#include "glusterfs/mem-types.h"
#include "glusterfs/mem-pool.h"
#include "glusterfs/strfd.h"
#include "glusterfs/common-utils.h"
strfd_t *
strfd_open()
{
strfd_t *strfd = NULL;
strfd = GF_CALLOC(1, sizeof(*strfd), gf_common_mt_strfd_t);
return strfd;
}
int
strvprintf(strfd_t *strfd, const char *fmt, va_list ap)
{
char *str = NULL;
int size = 0;
size = vasprintf(&str, fmt, ap);
if (size < 0)
return size;
if (!strfd->alloc_size) {
strfd->data = GF_CALLOC(max(size + 1, 4096), 1,
gf_common_mt_strfd_data_t);
if (!strfd->data) {
free(str); /* NOT GF_FREE */
return -1;
}
strfd->alloc_size = max(size + 1, 4096);
}
if (strfd->alloc_size <= (strfd->size + size)) {
char *tmp_ptr = NULL;
int new_size = max(
(strfd->alloc_size * 2),
gf_roundup_next_power_of_two(strfd->size + size + 1));
tmp_ptr = GF_REALLOC(strfd->data, new_size);
if (!tmp_ptr) {
free(str); /* NOT GF_FREE */
return -1;
}
strfd->alloc_size = new_size;
strfd->data = tmp_ptr;
}
/* Copy the trailing '\0', but do not account for it in ->size.
This allows safe use of strfd->data as a string. */
memcpy(strfd->data + strfd->size, str, size + 1);
strfd->size += size;
free(str); /* NOT GF_FREE */
return size;
}
int
strprintf(strfd_t *strfd, const char *fmt, ...)
{
int ret = 0;
va_list ap;
va_start(ap, fmt);
ret = strvprintf(strfd, fmt, ap);
va_end(ap);
return ret;
}
int
strfd_close(strfd_t *strfd)
{
GF_FREE(strfd->data);
GF_FREE(strfd);
return 0;
}
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