X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=src%2Fdata%2Ffile-handle-def.h;h=b4a6d6100e8ed291ed8705a659d381beb8ec26a6;hb=refs%2Fbuilds%2F149%2Fpspp;hp=a3d837ab924b0a60af7a4bf319eabe0c31bef4ca;hpb=9aac12c2130257396c9ee4ee7860f618dcb202b0;p=pspp
diff --git a/src/data/file-handle-def.h b/src/data/file-handle-def.h
index a3d837ab92..b4a6d6100e 100644
--- a/src/data/file-handle-def.h
+++ b/src/data/file-handle-def.h
@@ -1,26 +1,25 @@
-/* PSPP - computes sample statistics.
+/* PSPP - a program for statistical analysis.
Copyright (C) 1997-9, 2000, 2005, 2006 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 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 3 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.
+ 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. */
+ along with this program. If not, see . */
#ifndef FILE_HANDLE_DEF_H
#define FILE_HANDLE_DEF_H
#include
#include
+#include
/* What a file handle refers to.
(Ordinarily only a single value is allowed, but fh_open()
@@ -36,15 +35,26 @@ enum fh_referent
enum fh_mode
{
FH_MODE_TEXT, /* New-line delimited lines. */
- FH_MODE_BINARY /* Fixed-length records. */
+ FH_MODE_FIXED, /* Fixed-length records. */
+ FH_MODE_VARIABLE, /* Binary variable-length records. */
+ FH_MODE_360_VARIABLE, /* IBM 360 variable-length records. */
+ FH_MODE_360_SPANNED, /* IBM 360 variable-length, spanned records. */
+ };
+
+/* Ways to access a file. */
+enum fh_access
+ {
+ FH_ACC_READ, /* Read from it. */
+ FH_ACC_WRITE /* Write to it. */
};
/* Properties of a file handle. */
-struct fh_properties
+struct fh_properties
{
enum fh_mode mode; /* File mode. */
size_t record_width; /* Length of fixed-format records. */
size_t tab_width; /* Tab width, 0=do not expand tabs. */
+ const char *encoding; /* ASCII or EBCDIC? */
};
void fh_init (void);
@@ -57,8 +67,10 @@ struct file_handle *fh_create_file (const char *handle_name,
struct file_handle *fh_create_scratch (const char *handle_name);
const struct fh_properties *fh_default_properties (void);
-/* Delete file handle from global list. */
-void fh_free (struct file_handle *);
+/* Reference management. */
+struct file_handle *fh_ref (struct file_handle *);
+void fh_unref (struct file_handle *);
+void fh_unname (struct file_handle *);
/* Finding file handles. */
struct file_handle *fh_from_id (const char *handle_name);
@@ -77,16 +89,19 @@ enum fh_mode fh_get_mode (const struct file_handle *) ;
/* Properties of FH_REF_FILE and FH_REF_INLINE file handles. */
size_t fh_get_record_width (const struct file_handle *);
size_t fh_get_tab_width (const struct file_handle *);
+const char *fh_get_legacy_encoding (const struct file_handle *);
/* Properties of FH_REF_SCRATCH file handles. */
-struct scratch_handle *fh_get_scratch_handle (struct file_handle *);
+struct scratch_handle *fh_get_scratch_handle (const struct file_handle *);
void fh_set_scratch_handle (struct file_handle *, struct scratch_handle *);
-/* Opening and closing file handles. */
-void **fh_open (struct file_handle *, enum fh_referent mask,
- const char *type, const char *mode);
-int fh_close (struct file_handle *, const char *type, const char *mode);
-bool fh_is_open (const struct file_handle *);
+/* Mutual exclusion for access . */
+struct fh_lock *fh_lock (struct file_handle *, enum fh_referent mask,
+ const char *type, enum fh_access, bool exclusive);
+bool fh_unlock (struct fh_lock *);
+void *fh_lock_get_aux (const struct fh_lock *);
+void fh_lock_set_aux (struct fh_lock *, void *aux);
+bool fh_is_locked (const struct file_handle *, enum fh_access);
/* Default file handle for DATA LIST, REREAD, REPEATING DATA
commands. */