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37 * Implements classes from filestream.h.
39 * \author Teemu Murtola <teemu.murtola@gmail.com>
40 * \ingroup module_utility
44 #include "filestream.h"
49 #include "gromacs/utility/exceptions.h"
50 #include "gromacs/utility/gmxassert.h"
51 #include "gromacs/utility/stringutil.h"
59 /********************************************************************
66 explicit FileStreamImpl(FILE *fp)
67 : fp_(fp), bClose_(false)
70 FileStreamImpl(const char *filename, const char *mode)
71 : fp_(NULL), bClose_(true)
73 fp_ = std::fopen(filename, mode);
77 FileIOError(formatString("Could not open file '%s'", filename)),
83 if (fp_ != NULL && bClose_)
85 if (std::fclose(fp_) != 0)
87 // TODO: Log the error somewhere
94 GMX_RELEASE_ASSERT(fp_ != NULL,
95 "Attempted to access a file object that is not open");
101 GMX_RELEASE_ASSERT(fp_ != NULL,
102 "Attempted to close a file object that is not open");
103 GMX_RELEASE_ASSERT(bClose_,
104 "Attempted to close a file object that should not be");
105 const bool bOk = (std::fclose(fp_) == 0);
109 GMX_THROW_WITH_ERRNO(
110 FileIOError("Error while closing file"), "fclose", errno);
115 //! File handle for this object (NULL if the stream has been closed).
117 //! Whether \p fp_ should be closed by this object.
121 } // namespace internal
123 using internal::FileStreamImpl;
125 /********************************************************************
129 TextOutputFile::TextOutputFile(const std::string &filename)
130 : impl_(new FileStreamImpl(filename.c_str(), "w"))
134 TextOutputFile::TextOutputFile(FILE *fp)
135 : impl_(new FileStreamImpl(fp))
139 TextOutputFile::~TextOutputFile()
143 void TextOutputFile::write(const char *str)
145 if (std::fprintf(impl_->handle(), "%s", str) < 0)
147 GMX_THROW_WITH_ERRNO(FileIOError("Writing to file failed"),
152 void TextOutputFile::close()
158 TextOutputFile &TextOutputFile::standardOutput()
160 static TextOutputFile stdoutObject(stdout);
165 TextOutputFile &TextOutputFile::standardError()
167 static TextOutputFile stderrObject(stderr);