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-rw-r--r--src/io/stream/uristream.cpp171
1 files changed, 171 insertions, 0 deletions
diff --git a/src/io/stream/uristream.cpp b/src/io/stream/uristream.cpp
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+++ b/src/io/stream/uristream.cpp
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+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Our base String stream classes. We implement these to
+ * be based on Glib::ustring
+ *
+ * Authors:
+ * Bob Jamison <rjamison@titan.com>
+ *
+ * Copyright (C) 2004 Inkscape.org
+ *
+ * Released under GNU GPL v2+, read the file 'COPYING' for more information.
+ */
+
+
+#include "uristream.h"
+#include "io/sys.h"
+
+
+namespace Inkscape
+{
+namespace IO
+{
+
+//#########################################################################
+//# F I L E I N P U T S T R E A M
+//#########################################################################
+
+
+/**
+ *
+ */
+FileInputStream::FileInputStream(FILE *source)
+ : inf(source)
+{
+ if (!inf) {
+ Glib::ustring err = "FileInputStream passed NULL";
+ throw StreamException(err);
+ }
+}
+
+/**
+ *
+ */
+FileInputStream::~FileInputStream()
+{
+ close();
+}
+
+/**
+ * Returns the number of bytes that can be read (or skipped over) from
+ * this input stream without blocking by the next caller of a method for
+ * this input stream.
+ */
+int FileInputStream::available()
+{
+ return 0;
+}
+
+
+/**
+ * Closes this input stream and releases any system resources
+ * associated with the stream.
+ */
+void FileInputStream::close()
+{
+ if (!inf)
+ return;
+ fflush(inf);
+ fclose(inf);
+ inf=nullptr;
+}
+
+/**
+ * Reads the next byte of data from the input stream. -1 if EOF
+ */
+int FileInputStream::get()
+{
+ int retVal = -1;
+ if (!inf || feof(inf))
+ {
+ retVal = -1;
+ }
+ else
+ {
+ retVal = fgetc(inf);
+ }
+
+ return retVal;
+}
+
+
+
+
+//#########################################################################
+//# F I L E O U T P U T S T R E A M
+//#########################################################################
+
+FileOutputStream::FileOutputStream(FILE *fp)
+ : ownsFile(false)
+ , outf(fp)
+{
+ if (!outf) {
+ Glib::ustring err = "FileOutputStream given null file ";
+ throw StreamException(err);
+ }
+}
+
+/**
+ *
+ */
+FileOutputStream::~FileOutputStream()
+{
+ close();
+}
+
+/**
+ * Closes this output stream and releases any system resources
+ * associated with this stream.
+ */
+void FileOutputStream::close()
+{
+ if (!outf)
+ return;
+ fflush(outf);
+ if ( ownsFile )
+ fclose(outf);
+ outf=nullptr;
+}
+
+/**
+ * Flushes this output stream and forces any buffered output
+ * bytes to be written out.
+ */
+void FileOutputStream::flush()
+{
+ if (!outf)
+ return;
+ fflush(outf);
+}
+
+/**
+ * Writes the specified byte to this output stream.
+ */
+int FileOutputStream::put(char ch)
+{
+ unsigned char uch;
+
+ if (!outf)
+ return -1;
+ uch = (unsigned char)(ch & 0xff);
+ if (fputc(uch, outf) == EOF) {
+ Glib::ustring err = "ERROR writing to file ";
+ throw StreamException(err);
+ }
+
+ return 1;
+}
+
+
+
+
+
+} // namespace IO
+} // namespace Inkscape
+
+
+//#########################################################################
+//# E N D O F F I L E
+//#########################################################################
+
+// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:fileencoding=utf-8:textwidth=99 :