hayodea
b6b2ce7ada
This is generally frowned upon but it makes this code 10x cleaner. We handle commandLine usage msg printing by using exceptions for control flow. This allows us to centralize the logic for killing the Mind threads in one place. At least with respect to printing the usage msg.
68 lines
1.5 KiB
C++
68 lines
1.5 KiB
C++
#ifndef OPTS_H
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#define OPTS_H
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#include <vector>
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#include <string>
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#include <getopt.h>
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#include <stdexcept>
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#include <exception>
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// Define a class to hold the options and parse arguments
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class OptionParser
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{
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public:
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OptionParser() : verbose(false), printUsage(false) {}
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~OptionParser() = default;
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void parseArguments(int argc, char *argv[], char **envp);
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std::string stringifyOptions(void) const;
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std::string getUsage() const;
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static OptionParser &getOptions(void)
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{
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static OptionParser options;
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return options;
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}
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public:
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class Exception : public std::exception
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{
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public:
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Exception() = default;
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~Exception() override = default;
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const char* what() const noexcept override = 0;
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};
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std::string argv0;
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std::vector<std::string> senseApiLibPath;
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std::vector<std::string> senseApiLibs;
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std::string deviceSpecs;
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std::vector<std::string> deviceSpecFiles;
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bool verbose, printUsage;
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static struct option longOptions[];
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};
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class OptionsParserError
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: public std::invalid_argument, public OptionParser::Exception
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{
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public:
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OptionsParserError(
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const std::string& errorMessage, const OptionParser& parser);
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const char* what() const noexcept override;
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};
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class JustPrintUsageNoError
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: public OptionParser::Exception
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{
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public:
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explicit JustPrintUsageNoError(const OptionParser& parser);
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const char* what() const noexcept override;
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private:
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std::string message;
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};
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#endif // OPTS_H
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