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37 * Declares gmx::CommandLineModuleInterface.
39 * \author Teemu Murtola <teemu.murtola@gmail.com>
41 * \ingroup module_commandline
43 #ifndef GMX_COMMANDLINE_CMDLINEMODULE_H
44 #define GMX_COMMANDLINE_CMDLINEMODULE_H
49 class CommandLineHelpContext;
52 * Module that can be run from command line using CommandLineModuleManager.
54 * \see CommandLineModuleManager
57 * \ingroup module_commandline
59 class CommandLineModuleInterface
62 virtual ~CommandLineModuleInterface() {}
64 //! Returns the name of the module.
65 virtual const char *name() const = 0;
66 //! Returns a one-line description of the module.
67 virtual const char *shortDescription() const = 0;
70 * Runs the module with the given arguments.
72 * \param[in] argc Number of elements in \p argv.
73 * \param[in] argv Command-line arguments.
74 * \throws unspecified May throw exceptions to indicate errors.
75 * \returns Exit code for the program.
76 * \retval 0 on successful termination.
78 * \p argv[0] is the name of the module, i.e., the arguments are as if
79 * the module was run as a standalone executable.
81 virtual int run(int argc, char *argv[]) = 0;
83 * Prints help for the module.
85 * \param[in] context Context object for writing the help.
86 * \throws std::bad_alloc if out of memory.
87 * \throws FileIOError on any I/O error.
89 * Note that for MPI-enabled builds, this is called only on the master
92 virtual void writeHelp(const CommandLineHelpContext &context) const = 0;