/* PSPP - a program for statistical analysis.
- Copyright (C) 2000 Free Software Foundation, Inc.
+ Copyright (C) 2000, 2010 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
along with this program. If not, see <http://www.gnu.org/licenses/>. */
#include <config.h>
-#include "pool.h"
+
+#include "libpspp/pool.h"
+
#include <stdint.h>
#include <stdlib.h>
-#include <libpspp/assertion.h>
-#include "message.h"
-#include "str.h"
-#include "xalloc.h"
+#include "libpspp/assertion.h"
+#include "libpspp/message.h"
+#include "libpspp/temp-file.h"
+#include "libpspp/str.h"
+
+#include "gl/xalloc.h"
/* Fast, low-overhead memory block suballocator. */
struct pool
{
POOL_GIZMO_MALLOC,
POOL_GIZMO_FILE,
+ POOL_GIZMO_TEMP_FILE,
POOL_GIZMO_SUBPOOL,
POOL_GIZMO_REGISTERED,
};
/* Type-dependent info. */
union
{
- FILE *file; /* POOL_GIZMO_FILE. */
+ FILE *file; /* POOL_GIZMO_FILE, POOL_GIZMO_TEMP_FILE. */
struct pool *subpool; /* POOL_GIZMO_SUBPOOL. */
/* POOL_GIZMO_REGISTERED. */
return fclose (file);
}
-/* Creates a temporary file with tmpfile() and returns a handle to it
- if successful or a null pointer if not.
+/* Attaches FILE to POOL.
The file will be closed automatically when POOL is destroyed, or it
may be closed explicitly in advance using pool_fclose(), or
detached from the pool with pool_detach_file(). */
+void
+pool_attach_file (struct pool *pool, FILE *file)
+{
+ struct pool_gizmo *g = pool_alloc (pool, sizeof *g);
+ g->type = POOL_GIZMO_FILE;
+ g->p.file = file;
+ add_gizmo (pool, g);
+}
+
+/* Detaches FILE from POOL. */
+void
+pool_detach_file (struct pool *pool, FILE *file)
+{
+ struct pool_gizmo *g;
+
+ for (g = pool->gizmos; g; g = g->next)
+ if (g->type == POOL_GIZMO_FILE && g->p.file == file)
+ {
+ delete_gizmo (pool, g);
+ return;
+ }
+}
+
+/* Creates a temporary file with create_temp_file() and returns a handle to it
+ if successful or a null pointer if not.
+ The file will be closed automatically when POOL is destroyed, or it
+ may be closed explicitly in advance using pool_fclose_temp_file(), or
+ detached from the pool with pool_detach_temp_file(). */
FILE *
-pool_tmpfile (struct pool *pool)
+pool_create_temp_file (struct pool *pool)
{
- FILE *file = tmpfile ();
+ FILE *file = create_temp_file ();
if (file != NULL)
- pool_attach_file (pool, file);
+ pool_attach_temp_file (pool, file);
return file;
}
-/* Attaches FILE to POOL.
+/* Closes file FILE managed by POOL.
+ FILE must have been opened with create_temp_file(). */
+void
+pool_fclose_temp_file (struct pool *pool, FILE *file)
+{
+ assert (pool && file);
+ pool_detach_temp_file (pool, file);
+ close_temp_file (file);
+}
+
+/* Attaches FILE, which must have been opened with create_temp_file(), to POOL.
The file will be closed automatically when POOL is destroyed, or it
- may be closed explicitly in advance using pool_fclose(), or
- detached from the pool with pool_detach_file(). */
+ may be closed explicitly in advance using pool_fclose_temp_file(), or
+ detached from the pool with pool_detach_temp_file(). */
void
-pool_attach_file (struct pool *pool, FILE *file)
+pool_attach_temp_file (struct pool *pool, FILE *file)
{
struct pool_gizmo *g = pool_alloc (pool, sizeof *g);
- g->type = POOL_GIZMO_FILE;
+ g->type = POOL_GIZMO_TEMP_FILE;
g->p.file = file;
add_gizmo (pool, g);
}
-/* Detaches FILE from POOL. */
+/* Detaches FILE that was opened with create_temp_file() from POOL. */
void
-pool_detach_file (struct pool *pool, FILE *file)
+pool_detach_temp_file (struct pool *pool, FILE *file)
{
struct pool_gizmo *g;
for (g = pool->gizmos; g; g = g->next)
- if (g->type == POOL_GIZMO_FILE && g->p.file == file)
+ if (g->type == POOL_GIZMO_TEMP_FILE && g->p.file == file)
{
delete_gizmo (pool, g);
return;
case POOL_GIZMO_FILE:
fclose (gizmo->p.file); /* Ignore errors. */
break;
+ case POOL_GIZMO_TEMP_FILE:
+ close_temp_file (gizmo->p.file); /* Ignore errors. */
+ break;
case POOL_GIZMO_SUBPOOL:
gizmo->p.subpool->parent = NULL;
pool_destroy (gizmo->p.subpool);