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35 /*! \libinternal \file
37 * Declares gmx::FileOutputRedirectorInterface.
39 * \author Teemu Murtola <teemu.murtola@gmail.com>
41 * \ingroup module_utility
43 #ifndef GMX_UTILITY_FILEREDIRECTOR_H
44 #define GMX_UTILITY_FILEREDIRECTOR_H
48 #include "gromacs/utility/file.h"
53 /*! \libinternal \brief
54 * Allows capturing `stdout` and file output from code that supports it.
56 * The calling code should take in this interface and use the File objects
57 * it returns for all output that needs to support this redirection.
58 * By default, the code can then use defaultFileOutputRedirector() in case no
59 * redirection is needed.
61 * This allows tests to capture the file output without duplicating the
62 * knowledge of which files are actually produced. With some further
63 * refactoring of the File class, this could support capturing the output into
64 * in-memory buffers as well, but for now the current capabilities are
68 * \ingroup module_utility
70 class FileOutputRedirectorInterface
73 virtual ~FileOutputRedirectorInterface();
76 * Returns a File object to use for `stdout` output.
78 virtual File &standardOutput() = 0;
80 * Returns a File object to use for output to a given file.
82 * \param[in] filename Requested file name.
84 virtual FileInitializer openFileForWriting(const char *filename) = 0;
86 //! Convenience method to open a file using an std::string path.
87 FileInitializer openFileForWriting(const std::string &filename)
89 return openFileForWriting(filename.c_str());
95 * Returns default implementation for FileOutputRedirectorInterface.
97 * The returned implementation does not redirect anything, but just opens the
98 * files at requested locations.
100 * \ingroup module_utility
102 FileOutputRedirectorInterface &defaultFileOutputRedirector();