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/* This file implements the liblognorm API.
* See header file for descriptions.
*
* liblognorm - a fast samples-based log normalization library
* Copyright 2013 by Rainer Gerhards and Adiscon GmbH.
*
* Modified by Pavel Levshin (pavel@levshin.spb.ru) in 2013
*
* This file is part of liblognorm.
*
* 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 Street, Fifth Floor, Boston, MA 02110-1301 USA
*
* A copy of the LGPL v2.1 can be found in the file "COPYING" in this distribution.
*/
#include "config.h"
#include <string.h>
#include <errno.h>
#include "liblognorm.h"
#include "lognorm.h"
#include "annot.h"
#include "samp.h"
#include "v1_liblognorm.h"
#include "v1_ptree.h"
#define CHECK_CTX \
if(ctx->objID != LN_ObjID_CTX) { \
r = -1; \
goto done; \
}
const char *
ln_version(void)
{
return VERSION;
}
int
ln_hasAdvancedStats(void)
{
#ifdef ADVANCED_STATS
return 1;
#else
return 0;
#endif
}
ln_ctx
ln_initCtx(void)
{
ln_ctx ctx;
if((ctx = calloc(1, sizeof(struct ln_ctx_s))) == NULL)
goto done;
#ifdef HAVE_JSON_GLOBAL_SET_STRING_HASH
json_global_set_string_hash(JSON_C_STR_HASH_PERLLIKE);
#endif
#ifdef HAVE_JSON_GLOBAL_SET_PRINTBUF_INITIAL_SIZE
json_global_set_printbuf_initial_size(2048);
#endif
ctx->objID = LN_ObjID_CTX;
ctx->dbgCB = NULL;
ctx->opts = 0;
/* we add an root for the empty word, this simplifies parse
* dag handling.
*/
if((ctx->pdag = ln_newPDAG(ctx)) == NULL) {
free(ctx);
ctx = NULL;
goto done;
}
/* same for annotation set */
if((ctx->pas = ln_newAnnotSet(ctx)) == NULL) {
ln_pdagDelete(ctx->pdag);
free(ctx);
ctx = NULL;
goto done;
}
done:
return ctx;
}
void
ln_setCtxOpts(ln_ctx ctx, const unsigned opts) {
ctx->opts |= opts;
}
int
ln_exitCtx(ln_ctx ctx)
{
int r = 0;
CHECK_CTX;
ln_dbgprintf(ctx, "exitCtx %p", ctx);
ctx->objID = LN_ObjID_None; /* prevent double free */
/* support for old cruft */
if(ctx->ptree != NULL)
ln_deletePTree(ctx->ptree);
/* end support for old cruft */
if(ctx->pdag != NULL)
ln_pdagDelete(ctx->pdag);
for(int i = 0 ; i < ctx->nTypes ; ++i) {
free((void*)ctx->type_pdags[i].name);
ln_pdagDelete(ctx->type_pdags[i].pdag);
}
free(ctx->type_pdags);
if(ctx->rulePrefix != NULL)
es_deleteStr(ctx->rulePrefix);
if(ctx->pas != NULL)
ln_deleteAnnotSet(ctx->pas);
free(ctx);
done:
return r;
}
int
ln_setDebugCB(ln_ctx ctx, void (*cb)(void*, const char*, size_t), void *cookie)
{
int r = 0;
CHECK_CTX;
ctx->dbgCB = cb;
ctx->dbgCookie = cookie;
done:
return r;
}
int
ln_setErrMsgCB(ln_ctx ctx, void (*cb)(void*, const char*, size_t), void *cookie)
{
int r = 0;
CHECK_CTX;
ctx->errmsgCB = cb;
ctx->errmsgCookie = cookie;
done:
return r;
}
int
ln_loadSamples(ln_ctx ctx, const char *file)
{
int r = 0;
const char *tofree;
CHECK_CTX;
ctx->conf_file = tofree = strdup(file);
ctx->conf_ln_nbr = 0;
++ctx->include_level;
r = ln_sampLoad(ctx, file);
--ctx->include_level;
free((void*)tofree);
ctx->conf_file = NULL;
done:
return r;
}
int
ln_loadSamplesFromString(ln_ctx ctx, const char *string)
{
int r = 0;
const char *tofree;
CHECK_CTX;
ctx->conf_file = tofree = strdup("--NO-FILE--");
ctx->conf_ln_nbr = 0;
++ctx->include_level;
r = ln_sampLoadFromString(ctx, string);
--ctx->include_level;
free((void*)tofree);
ctx->conf_file = NULL;
done:
return r;
}
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