/* LBS: An LFS-inspired filesystem backup system
- * Copyright (C) 2006 Michael Vrable
+ * Copyright (C) 2006-2008 Michael Vrable
*
* Backup data is stored in a collection of objects, which are grouped together
* into segments for storage purposes. This implementation of the object store
#include <iostream>
#include <sstream>
+#include "localdb.h"
+#include "remote.h"
#include "sha1.h"
#include "ref.h"
* first; incremental writing is not supported. */
class Tarfile {
public:
- Tarfile(const std::string &path, const std::string &segment);
+ Tarfile(RemoteFile *file, const std::string &segment);
~Tarfile();
- int spawn_filter(int fd_out);
void write_object(int id, const char *data, size_t len);
// Return an estimate of the size of the file.
size_t size_estimate();
- void internal_write_object(const std::string &path,
- const char *data, size_t len);
-
private:
size_t size;
std::string segment_name;
+ RemoteFile *file;
+
/* Filter support. */
int real_fd, filter_fd;
pid_t filter_pid;
class TarSegmentStore {
public:
// New segments will be stored in the given directory.
- TarSegmentStore(const std::string &path) { this->path = path; }
+ TarSegmentStore(RemoteStore *remote,
+ LocalDb *db = NULL)
+ { this->remote = remote; this->db = db; }
~TarSegmentStore() { sync(); }
// Writes an object to segment in the store, and returns the name
private:
struct segment_info {
Tarfile *file;
+ std::string group;
std::string name; // UUID
int count; // Objects written to this segment
+ int size; // Combined size of objects written
+ std::string basename; // Name of segment without directory
+ RemoteFile *rf;
};
- std::string path;
+ RemoteStore *remote;
std::map<std::string, struct segment_info *> segments;
+ LocalDb *db;
// Ensure that all segments in the given group have been fully written.
void close_segment(const std::string &group);
* included; this adds to it) */
extern const char *filter_extension;
+/* Launch a process to filter data written to a file descriptor. fd_out is the
+ * file descriptor where the filtered data should be written. program is the
+ * filter program to execute (a single string which will be interpreted by
+ * /bin/sh). The return value is a file descriptor to which the data to be
+ * filtered should be written. The process ID of the filter process is stored
+ * at address filter_pid if non-NULL. */
+int spawn_filter(int fd_out, const char *program, pid_t *filter_pid);
+
#endif // _LBS_STORE_H