2946cd7010
to reflect the new license. We understand that people may be surprised that we're moving the header entirely to discuss the new license. We checked this carefully with the Foundation's lawyer and we believe this is the correct approach. Essentially, all code in the project is now made available by the LLVM project under our new license, so you will see that the license headers include that license only. Some of our contributors have contributed code under our old license, and accordingly, we have retained a copy of our old license notice in the top-level files in each project and repository. llvm-svn: 351636
82 lines
2.3 KiB
C++
82 lines
2.3 KiB
C++
//===-- source/Host/common/OptionParser.cpp ---------------------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include "lldb/Host/OptionParser.h"
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#include "lldb/Host/HostGetOpt.h"
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#include "lldb/lldb-private-types.h"
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#include <vector>
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using namespace lldb_private;
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void OptionParser::Prepare(std::unique_lock<std::mutex> &lock) {
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static std::mutex g_mutex;
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lock = std::unique_lock<std::mutex>(g_mutex);
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#ifdef __GLIBC__
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optind = 0;
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#else
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optreset = 1;
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optind = 1;
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#endif
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}
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void OptionParser::EnableError(bool error) { opterr = error ? 1 : 0; }
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int OptionParser::Parse(int argc, char *const argv[], llvm::StringRef optstring,
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const Option *longopts, int *longindex) {
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std::vector<option> opts;
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while (longopts->definition != nullptr) {
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option opt;
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opt.flag = longopts->flag;
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opt.val = longopts->val;
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opt.name = longopts->definition->long_option;
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opt.has_arg = longopts->definition->option_has_arg;
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opts.push_back(opt);
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++longopts;
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}
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opts.push_back(option());
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std::string opt_cstr = optstring;
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return getopt_long_only(argc, argv, opt_cstr.c_str(), &opts[0], longindex);
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}
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char *OptionParser::GetOptionArgument() { return optarg; }
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int OptionParser::GetOptionIndex() { return optind; }
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int OptionParser::GetOptionErrorCause() { return optopt; }
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std::string OptionParser::GetShortOptionString(struct option *long_options) {
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std::string s;
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int i = 0;
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bool done = false;
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while (!done) {
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if (long_options[i].name == 0 && long_options[i].has_arg == 0 &&
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long_options[i].flag == 0 && long_options[i].val == 0) {
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done = true;
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} else {
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if (long_options[i].flag == NULL && isalpha(long_options[i].val)) {
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s.append(1, (char)long_options[i].val);
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switch (long_options[i].has_arg) {
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default:
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case no_argument:
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break;
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case optional_argument:
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s.append(2, ':');
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break;
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case required_argument:
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s.append(1, ':');
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break;
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}
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}
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++i;
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}
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}
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return s;
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}
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