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Diffstat (limited to 'utils/cmdline/globals.cpp')
-rw-r--r-- | utils/cmdline/globals.cpp | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/utils/cmdline/globals.cpp b/utils/cmdline/globals.cpp new file mode 100644 index 000000000000..76e0231fa36b --- /dev/null +++ b/utils/cmdline/globals.cpp @@ -0,0 +1,78 @@ +// Copyright 2010 The Kyua Authors. +// All rights reserved. +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are +// met: +// +// * Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// * 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. +// * Neither the name of Google Inc. nor the names of its contributors +// may be used to endorse or promote products derived from this software +// without specific prior written permission. +// +// 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 +// OWNER 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 "utils/cmdline/globals.hpp" + +#include "utils/format/macros.hpp" +#include "utils/logging/macros.hpp" +#include "utils/fs/path.hpp" +#include "utils/sanity.hpp" + +namespace cmdline = utils::cmdline; + +namespace { + + +/// The name of the binary used to execute the program. +static std::string Progname; + + +} // anonymous namespace + + +/// Initializes the global state of the CLI. +/// +/// This function can only be called once during the execution of a program, +/// unless override_for_testing is set to true. +/// +/// \param argv0 The value of argv[0]; i.e. the program name. +/// \param override_for_testing Should always be set to false unless for tests +/// of this functionality, which may set this to true to redefine internal +/// state. +void +cmdline::init(const char* argv0, const bool override_for_testing) +{ + if (!override_for_testing) + PRE_MSG(Progname.empty(), "cmdline::init called more than once"); + Progname = utils::fs::path(argv0).leaf_name(); + LD(F("Program name: %s") % Progname); + POST(!Progname.empty()); +} + + +/// Gets the program name. +/// +/// \pre init() must have been called in advance. +/// +/// \return The program name. +const std::string& +cmdline::progname(void) +{ + PRE_MSG(!Progname.empty(), "cmdline::init not called yet"); + return Progname; +} |