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/*
* Copyright (c) 2011-2013 BalaBit IT Ltd, Budapest, Hungary
* Copyright (c) 2011-2013 Gergely Nagy <algernon@balabit.hu>
*
* 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, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
* As an additional exemption you are allowed to compile & link against the
* OpenSSL libraries as published by the OpenSSL project. See the file
* COPYING for details.
*
*/
#include "tls-support.h"
#include "scratch-buffers.h"
#include "misc.h"
TLS_BLOCK_START
{
GTrashStack *sb_gstrings;
GTrashStack *sb_th_gstrings;
GList *sb_registry;
}
TLS_BLOCK_END;
/* GStrings */
#define local_sb_gstrings __tls_deref(sb_gstrings)
GTrashStack *
sb_gstring_acquire_buffer(void)
{
SBGString *sb;
sb = g_trash_stack_pop(&local_sb_gstrings);
if (!sb)
{
sb = g_new(SBGString, 1);
g_string_steal(sb_gstring_string(sb));
}
else
g_string_set_size(sb_gstring_string(sb), 0);
return (GTrashStack *) sb;
}
void
sb_gstring_release_buffer(GTrashStack *s)
{
SBGString *sb = (SBGString *) s;
g_trash_stack_push(&local_sb_gstrings, sb);
}
void
sb_gstring_free_stack(void)
{
SBGString *sb;
while ((sb = g_trash_stack_pop(&local_sb_gstrings)) != NULL)
{
g_free(sb_gstring_string(sb)->str);
g_free(sb);
}
}
ScratchBufferStack SBGStringStack = {
.acquire_buffer = sb_gstring_acquire_buffer,
.release_buffer = sb_gstring_release_buffer,
.free_stack = sb_gstring_free_stack
};
/* Type-hinted GStrings */
#define local_sb_th_gstrings __tls_deref(sb_th_gstrings)
GTrashStack *
sb_th_gstring_acquire_buffer (void)
{
SBTHGString *sb;
sb = g_trash_stack_pop(&local_sb_th_gstrings);
if (!sb)
{
sb = g_new(SBTHGString, 1);
g_string_steal(sb_th_gstring_string(sb));
sb->type_hint = TYPE_HINT_STRING;
}
else
g_string_set_size(sb_th_gstring_string(sb), 0);
return (GTrashStack *)sb;
}
void
sb_th_gstring_release_buffer(GTrashStack *s)
{
g_trash_stack_push(&local_sb_th_gstrings, s);
}
void
sb_th_gstring_free_stack(void)
{
SBGString *sb;
while ((sb = g_trash_stack_pop(&local_sb_th_gstrings)) != NULL)
{
g_free(sb_gstring_string(sb)->str);
g_free(sb);
}
}
ScratchBufferStack SBTHGStringStack = {
.acquire_buffer = sb_th_gstring_acquire_buffer,
.release_buffer = sb_th_gstring_release_buffer,
.free_stack = sb_th_gstring_free_stack
};
/* Global API */
#define local_sb_registry __tls_deref(sb_registry)
void
scratch_buffers_register(ScratchBufferStack *stack)
{
local_sb_registry = g_list_append(local_sb_registry, stack);
}
void
scratch_buffers_init(void)
{
local_sb_registry = NULL;
scratch_buffers_register(&SBGStringStack);
scratch_buffers_register(&SBTHGStringStack);
}
static void
scratch_buffers_free_stack(gpointer data, gpointer user_data)
{
ScratchBufferStack *s = (ScratchBufferStack *) data;
s->free_stack();
}
void
scratch_buffers_free(void)
{
g_list_foreach(local_sb_registry, scratch_buffers_free_stack, NULL);
g_list_free(local_sb_registry);
}
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