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/*
* Copyright (C) the libgit2 contributors. All rights reserved.
*
* This file is part of libgit2, distributed under the GNU GPL v2 with
* a Linking Exception. For full terms see the included COPYING file.
*/
#ifndef INCLUDE_mwindow__
#define INCLUDE_mwindow__
#include "common.h"
#include "map.h"
#include "vector.h"
typedef struct git_mwindow {
struct git_mwindow *next;
git_map window_map;
off64_t offset;
size_t last_used;
size_t inuse_cnt;
} git_mwindow;
typedef struct git_mwindow_file {
git_mutex lock; /* protects updates to fd */
git_mwindow *windows;
int fd;
off64_t size;
} git_mwindow_file;
typedef struct git_mwindow_ctl {
size_t mapped;
unsigned int open_windows;
unsigned int mmap_calls;
unsigned int peak_open_windows;
size_t peak_mapped;
size_t used_ctr;
git_vector windowfiles;
} git_mwindow_ctl;
int git_mwindow_contains(git_mwindow *win, off64_t offset);
int git_mwindow_free_all(git_mwindow_file *mwf); /* locks */
unsigned char *git_mwindow_open(git_mwindow_file *mwf, git_mwindow **cursor, off64_t offset, size_t extra, unsigned int *left);
int git_mwindow_file_register(git_mwindow_file *mwf);
void git_mwindow_file_deregister(git_mwindow_file *mwf);
void git_mwindow_close(git_mwindow **w_cursor);
extern int git_mwindow_global_init(void);
struct git_pack_file; /* just declaration to avoid cyclical includes */
int git_mwindow_get_pack(struct git_pack_file **out, const char *path);
int git_mwindow_put_pack(struct git_pack_file *pack);
#endif
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