84 lines
2.4 KiB
C++
84 lines
2.4 KiB
C++
//===-- source/Host/common/OptionParser.cpp -------------------------------===//
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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(llvm::MutableArrayRef<char *> argv,
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llvm::StringRef optstring, const Option *longopts,
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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 = std::string(optstring);
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return getopt_long_only(argv.size() - 1, argv.data(), opt_cstr.c_str(),
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&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 == nullptr && long_options[i].has_arg == 0 &&
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long_options[i].flag == nullptr && 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 == nullptr && 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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