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// SPDX-License-Identifier: (GPL-2.0-or-later OR BSD-2-Clause)
/*
* Traceshark - a visualizer for visualizing ftrace and perf traces
* Copyright (C) 2015, 2016, 2019, 2021
* Viktor Rosendahl <viktor.rosendahl@gmail.com>
*
* This file is dual licensed: you can use it either under the terms of
* the GPL, or the BSD license, at your option.
*
* a) 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 library; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
* MA 02110-1301 USA
*
* Alternatively,
*
* b) Redistribution and use in source and binary forms, with or
* without modification, are permitted provided that the following
* conditions are met:
*
* 1. Redistributions of source code must retain the above
* copyright notice, this list of conditions and the following
* disclaimer.
* 2. Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <cstring>
#include "parser/perf/perfgrammar.h"
#include "parser/traceevent.h"
PerfGrammar::PerfGrammar() :
unknownTypeCounter(EVENT_UNKNOWN)
{
argPool = new StringPool<>(2048, 1024 * 1024);
namePool = new StringPool<>(1024, 65536);
eventTree = new StringTree<>(8, 256, 4096);
setupEventTree();
}
PerfGrammar::~PerfGrammar()
{
delete argPool;
delete namePool;
delete eventTree;
}
void PerfGrammar::clear()
{
argPool->clear();
namePool->clear();
eventTree->clear();
setupEventTree();
unknownTypeCounter = EVENT_UNKNOWN;
}
void PerfGrammar::setupEventTree()
{
int t;
TString str;
char stra[EVENTSTRINGS_MAXLEN];
const int maxsize = arraylen(stra);
str.ptr = stra;
for (t = 0; t < NR_EVENTS; t++) {
str.len = strlen(eventstrings[t]);
if (str.len >= maxsize) {
vtl::errx(BSD_EX_SOFTWARE,
"Unexpected long string at %s:%d",
__FILE__, __LINE__);
}
str.ptr = strncpy(str.ptr, eventstrings[t], maxsize);
eventTree->searchAllocString(&str, (event_t) t);
}
}
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