1 files changed, 62 insertions, 0 deletions
diff --git a/gs/base/ramfs.h b/gs/base/ramfs.h
new file mode 100644
index 000000000..b2d6f29a8
--- /dev/null
+++ b/gs/base/ramfs.h
@@ -0,0 +1,62 @@
+#ifndef __RAMFS_H__
+#define __RAMFS_H__
+
+#define RAMFS_BLOCKSIZE 1024
+
+typedef struct _         ;
+typedef struct _ramdirent ramdirent;
+typedef struct _ramhandle ramhandle;
+typedef struct _    _enum     _enum;
+
+/*
+      _new: NOMEM
+      _open: NOTFOUND
+      _unlink: NOTFOUND
+      _enum_new: NOMEM
+      _enum_next: none
+      _enum_end: none
+  ramfile_read: none
+  ramfile_write: NOSPACE, NOMEM, NOACCESS
+  ramfile_seek: none
+  ramfile_pos: none
+  ramfile_close: none
+*/
+
+/* Error constants */
+#define RAMFS_NOTFOUND 2
+#define RAMFS_NOACCESS 5
+#define RAMFS_NOMEM 6
+#define RAMFS_NOSPACE 7
+
+/* Open mode flags */
+#define RAMFS_READ 1
+#define RAMFS_CREATE 2
+#define RAMFS_WRITE 4
+#define RAMFS_TRUNC 8
+#define RAMFS_APPEND 16
+
+#define RAMFS_SEEK_SET 0
+#define RAMFS_SEEK_CUR 1
+#define RAMFS_SEEK_END 2
+
+     *     _new(gs_memory_t *mem, int size); /* size is in KiB */
+void     _destroy(gs_memory_t *,      * fs);
+int     _error(const      * fs);
+ramhandle *     _open(gs_memory_t *mem,      * fs,const char * filename,int mode);
+int     _blocksize(     * fs);
+int     _blocksfree(     * fs);
+int     _unlink(     * fs,const char *filename);
+int     _rename(     * fs,const char *oldname,const char *newname);
+    _enum *     _enum_new(     * fs);
+char*     _enum_next(    _enum * e);
+void     _enum_end(    _enum * e);
+int ramfile_read(ramhandle * handle,void * buf,int len);
+int ramfile_write(ramhandle * handle,const void * buf,int len);
+int ramfile_seek(ramhandle * handle,int pos,int whence);
+int ramfile_eof(ramhandle * handle);
+int ramfile_tell(ramhandle * handle);
+int ramfile_size(ramhandle * handle);
+void ramfile_close(ramhandle * handle);
+int ramfile_error(ramhandle * handle);
+
+#endif /* __RAMFS_H__ */