Add casereaders and casewriters, the basis of the new data processing

[pspp-builds.git] / src / data / casewriter.h

diff --git a/src/data/casewriter.h b/src/data/casewriter.h
new file mode 100644 (file)
index 0000000..a1d0807
--- /dev/null
+++ b/src/data/casewriter.h
@@ -0,0 +1,52 @@
+/* PSPP - computes sample statistics.
+   Copyright (C) 2007 Free Software Foundation, Inc.
+
+   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., 51 Franklin Street, Fifth Floor, Boston, MA
+   02110-1301, USA. */
+
+#ifndef DATA_CASEWRITER_H
+#define DATA_CASEWRITER_H 1
+
+#include <stdbool.h>
+#include <stddef.h>
+#include <data/transformations.h>
+#include <libpspp/compiler.h>
+
+struct casewriter;
+
+void casewriter_write (struct casewriter *, struct ccase *);
+bool casewriter_destroy (struct casewriter *);
+
+struct casereader *casewriter_make_reader (struct casewriter *);
+
+struct casewriter *casewriter_rename (struct casewriter *);
+
+bool casewriter_error (const struct casewriter *);
+void casewriter_force_error (struct casewriter *);
+const struct taint *casewriter_get_taint (const struct casewriter *);
+
+struct casewriter *mem_writer_create (size_t value_cnt);
+struct casewriter *tmpfile_writer_create (size_t value_cnt);
+struct casewriter *autopaging_writer_create (size_t value_cnt);
+\f
+struct casewriter *
+casewriter_create_translator (struct casewriter *, 
+                              void (*translate) (const struct ccase *input,
+                                                 struct ccase *output,
+                                                 void *aux),
+                              bool (*destroy) (void *aux),
+                              void *aux);
+
+#endif /* data/casewriter.h */