1 files changed, 104 insertions, 0 deletions
diff --git a/src/fftw/wisdomio.c b/src/fftw/wisdomio.c
new file mode 100644
index 0000000..a085151
--- /dev/null
+++ b/src/fftw/wisdomio.c
@@ -0,0 +1,104 @@
+/*
+ * Copyright (c) 1997-1999, 2003 Massachusetts Institute of Technology
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "fftw-int.h"
+
+/**************** import/export using file ***************/
+
+static void file_emitter(char c, void *data)
+{
+     putc(c, (FILE *) data);
+}
+
+void fftw_export_wisdom_to_file(FILE *output_file)
+{
+     if (output_file)
+	  fftw_export_wisdom(file_emitter, (void *) output_file);
+}
+
+static int file_get_input(void *data)
+{
+     return getc((FILE *) data);
+}
+
+fftw_status fftw_import_wisdom_from_file(FILE *input_file)
+{
+     if (!input_file)
+	  return FFTW_FAILURE;
+     return fftw_import_wisdom(file_get_input, (void *) input_file);
+}
+
+/*************** import/export using string **************/
+
+static void emission_counter(char c, void *data)
+{
+     int *counter = (int *) data;
+
+     ++*counter;
+}
+
+static void string_emitter(char c, void *data)
+{
+     char **output_string = (char **) data;
+
+     *((*output_string)++) = c;
+     **output_string = 0;
+}
+
+char *fftw_export_wisdom_to_string(void)
+{
+     int string_length = 0;
+     char *s, *s2;
+
+     fftw_export_wisdom(emission_counter, (void *) &string_length);
+
+     s = (char *) fftw_malloc(sizeof(char) * (string_length + 1));
+     if (!s)
+	  return 0;
+     s2 = s;
+
+     fftw_export_wisdom(string_emitter, (void *) &s2);
+
+     if (s + string_length != s2)
+	  fftw_die("Unexpected output string length!\n");
+
+     return s;
+}
+
+static int string_get_input(void *data)
+{
+     char **input_string = (char **) data;
+
+     if (**input_string)
+	  return *((*input_string)++);
+     else
+	  return 0;
+}
+
+fftw_status fftw_import_wisdom_from_string(const char *input_string)
+{
+     const char *s = input_string;
+
+     if (!input_string)
+	  return FFTW_FAILURE;
+     return fftw_import_wisdom(string_get_input, (void *) &s);
+}