forked from github/verilator
62 lines
2.6 KiB
C++
62 lines
2.6 KiB
C++
// -*- mode: C++; c-file-style: "cc-mode" -*-
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//*************************************************************************
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// DESCRIPTION: Verilator: Os-specific function wrapper
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//
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// Code available from: http://www.veripool.org/verilator
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//
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//*************************************************************************
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//
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// Copyright 2003-2018 by Wilson Snyder. This program is free software; you can
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// redistribute it and/or modify it under the terms of either the GNU
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// Lesser General Public License Version 3 or the Perl Artistic License
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// Version 2.0.
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//
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// Verilator is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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//*************************************************************************
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#ifndef _V3OS_H_
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#define _V3OS_H_ 1
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#include "config_build.h"
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#include "verilatedos.h"
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#include "V3Error.h"
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//============================================================================
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// V3Os: OS static class
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class V3Os {
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public:
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// METHODS (environment)
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static string getenvStr(const string& envvar, const string& defaultValue);
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static void setenvStr(const string& envvar, const string& value, const string& why);
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// METHODS (generic filename utilities)
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static string filenameFromDirBase(const string& dir, const string& basename);
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static string filenameNonDir(const string& filename); ///< Return non-directory part of filename
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static string filenameNonExt(const string& filename); ///< Return non-extensioned (no .) part of filename
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static string filenameNonDirExt(const string& filename) { ///< Return basename of filename
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return filenameNonExt(filenameNonDir(filename)); }
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static string filenameDir(const string& filename); ///< Return directory part of filename
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static string filenameSubstitute(const string& filename); ///< Return filename with env vars removed
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static string filenameRealPath(const string& fn); ///< Return realpath of filename
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static bool filenameIsRel(const string& filename); ///< True if relative
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// METHODS (directory utilities)
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static void createDir(const string& dirname);
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static void unlinkRegexp(const string& dir, const string& regexp);
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// METHODS (random)
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static vluint64_t rand64(vluint64_t* statep);
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// METHODS (performance)
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static uint64_t timeUsecs(); ///< Return wall time since epoch in microseconds, or 0 if not implemented
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static uint64_t memUsageBytes(); ///< Return memory usage in bytes, or 0 if not implemented
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};
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#endif // Guard
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