/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*/
#include <sal/config.h>
#include <cassert>
#include <cstdlib>
#include <limits>
#include <memory>
#include <o3tl/runtimetooustring.hxx>
#include <rtl/ustrbuf.hxx>
#include <rtl/ustring.hxx>
#include <sal/types.h>
#include <sal/backtrace.hxx>
#include "backtrace.h"
#include <backtraceasstring.hxx>
namespace {
struct FreeGuard {
FreeGuard(char ** theBuffer): buffer(theBuffer) {}<--- Struct 'FreeGuard' has a constructor with 1 argument that is not explicit. [+]Struct 'FreeGuard' has a constructor with 1 argument that is not explicit. Such constructors should in general be explicit for type safety reasons. Using the explicit keyword in the constructor means some mistakes when using the class can be avoided.
~FreeGuard() { std::free(buffer); }
char ** buffer;
};
}
OUString osl::detail::backtraceAsString(sal_uInt32 maxDepth) {
std::unique_ptr<sal::BacktraceState> backtrace = sal::backtrace_get( maxDepth );<--- Shadow variable
return sal::backtrace_to_string( backtrace.get());
}
std::unique_ptr<sal::BacktraceState> sal::backtrace_get(sal_uInt32 maxDepth)
{
assert(maxDepth != 0);
auto const maxInt = static_cast<unsigned int>(
std::numeric_limits<int>::max());
if (maxDepth > maxInt) {
maxDepth = static_cast<sal_uInt32>(maxInt);
}
auto b1 = new void *[maxDepth];
int n = backtrace(b1, static_cast<int>(maxDepth));
return std::unique_ptr<BacktraceState>(new BacktraceState{ b1, n });
}
OUString sal::backtrace_to_string(BacktraceState* backtraceState)
{
FreeGuard b2(backtrace_symbols(backtraceState->buffer, backtraceState->nDepth));
if (b2.buffer == nullptr) {
return OUString();
}
OUStringBuffer b3;
for (int i = 0; i != backtraceState->nDepth; ++i) {
if (i != 0) {
b3.append("\n");
}
b3.append(o3tl::runtimeToOUString(b2.buffer[i]));
}
return b3.makeStringAndClear();
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */