2003-09-03 05:53:41 +04:00
|
|
|
/*
|
|
|
|
** Copyright 2003, Axel Dörfler, axeld@pinc-software.de. All rights reserved.
|
|
|
|
** Distributed under the terms of the OpenBeOS License.
|
|
|
|
*/
|
|
|
|
#ifndef KERNEL_BOOT_VFS_H
|
|
|
|
#define KERNEL_BOOT_VFS_H
|
|
|
|
|
|
|
|
|
|
|
|
#include <SupportDefs.h>
|
|
|
|
|
2003-09-09 06:12:06 +04:00
|
|
|
#include <util/list.h>
|
2003-09-03 05:53:41 +04:00
|
|
|
#include <boot/stage2_args.h>
|
|
|
|
|
|
|
|
|
|
|
|
#ifdef __cplusplus
|
|
|
|
|
|
|
|
/** This is the base class for all VFS nodes */
|
|
|
|
|
|
|
|
class Node {
|
|
|
|
public:
|
|
|
|
Node();
|
|
|
|
virtual ~Node();
|
|
|
|
|
|
|
|
virtual status_t Open(void **_cookie, int mode);
|
|
|
|
virtual status_t Close(void *cookie);
|
|
|
|
|
|
|
|
virtual ssize_t ReadAt(void *cookie, off_t pos, void *buffer, size_t bufferSize) = 0;
|
|
|
|
virtual ssize_t WriteAt(void *cookie, off_t pos, const void *buffer, size_t bufferSize) = 0;
|
|
|
|
|
2003-09-09 06:12:06 +04:00
|
|
|
virtual status_t GetName(char *nameBuffer, size_t bufferSize) const;
|
|
|
|
virtual int32 Type() const;
|
|
|
|
virtual off_t Size() const;
|
|
|
|
|
|
|
|
status_t Acquire();
|
|
|
|
status_t Release();
|
|
|
|
|
2003-09-03 05:53:41 +04:00
|
|
|
protected:
|
|
|
|
list_link fLink;
|
|
|
|
int32 fRefCount;
|
|
|
|
};
|
|
|
|
|
|
|
|
|
2003-09-09 06:12:06 +04:00
|
|
|
class Directory : public Node {
|
|
|
|
public:
|
|
|
|
Directory();
|
|
|
|
|
|
|
|
virtual ssize_t ReadAt(void *cookie, off_t pos, void *buffer, size_t bufferSize);
|
|
|
|
virtual ssize_t WriteAt(void *cookie, off_t pos, const void *buffer, size_t bufferSize);
|
|
|
|
|
|
|
|
virtual int32 Type() const;
|
|
|
|
|
|
|
|
virtual Node *Lookup(const char *name, bool traverseLinks) = 0;
|
|
|
|
|
2003-09-12 11:15:32 +04:00
|
|
|
virtual status_t GetNextEntry(void *cookie, char *nameBuffer, size_t bufferSize) = 0;
|
2003-09-09 06:12:06 +04:00
|
|
|
virtual status_t GetNextNode(void *cookie, Node **_node) = 0;
|
|
|
|
virtual status_t Rewind(void *cookie) = 0;
|
|
|
|
|
|
|
|
virtual status_t AddNode(Node *node);
|
|
|
|
};
|
|
|
|
|
2003-09-03 05:53:41 +04:00
|
|
|
/** The console based nodes don't need cookies for I/O, they
|
|
|
|
* also don't support to change the stream position.
|
|
|
|
* Live is simple in the boot loader :-)
|
|
|
|
*/
|
|
|
|
|
|
|
|
class ConsoleNode : public Node {
|
|
|
|
public:
|
|
|
|
ConsoleNode();
|
|
|
|
|
|
|
|
virtual ssize_t Read(void *buffer, size_t bufferSize);
|
|
|
|
virtual ssize_t Write(const void *buffer, size_t bufferSize);
|
|
|
|
};
|
|
|
|
|
2003-09-16 06:28:50 +04:00
|
|
|
/** The root file system */
|
2003-09-09 06:12:06 +04:00
|
|
|
extern Directory *gRoot;
|
2003-09-03 05:53:41 +04:00
|
|
|
|
|
|
|
extern "C" {
|
|
|
|
#endif /* __cplusplus */
|
|
|
|
|
|
|
|
extern status_t vfs_init(stage2_args *args);
|
|
|
|
extern status_t mount_boot_file_systems();
|
|
|
|
extern status_t add_partitions_for(int fd);
|
|
|
|
|
|
|
|
#ifdef __cplusplus
|
2003-09-11 04:27:11 +04:00
|
|
|
// this function is only available in C++
|
|
|
|
extern int open_node(Node *node, int mode);
|
2003-09-16 06:28:50 +04:00
|
|
|
extern int open_from(Directory *directory, const char *path, int mode);
|
2003-09-11 04:27:11 +04:00
|
|
|
|
2003-09-03 05:53:41 +04:00
|
|
|
}
|
|
|
|
#endif
|
|
|
|
|
|
|
|
#endif /* KERNEL_BOOT_VFS_H */
|