X-Git-Url: http://git.indexdata.com/?p=idzebra-moved-to-github.git;a=blobdiff_plain;f=include%2Fmfile.h;h=81fd99e0c27ec15c1318e52dbfa59b63e934e203;hp=cc34f9edc3c99cc3ef040e6f3aae9a4ba4c2bd07;hb=2b1851bd5565e3d21f9cf9a37661a584c063b75f;hpb=231ae24dce5e113aab05f17deb60344957d3622a diff --git a/include/mfile.h b/include/mfile.h index cc34f9e..81fd99e 100644 --- a/include/mfile.h +++ b/include/mfile.h @@ -1,51 +1,43 @@ /* - * Copyright (C) 1994-1995, Index Data I/S + * Copyright (C) 1994-1999, Index Data * All rights reserved. * Sebastian Hammer, Adam Dickmeiss * - * $Log: mfile.h,v $ - * Revision 1.6 1996-10-29 13:46:10 adam - * Removed obsolete headers alexpath, alexutil. Created zebrautl.h as - * a replacement. - * - * Revision 1.5 1995/12/05 11:15:03 quinn - * Fixed FILENAME_MAX for some Sun systems, hopefully. - * - * Revision 1.4 1995/11/30 08:33:30 adam - * Started work on commit facility. - * - * Revision 1.3 1995/09/04 12:33:35 adam - * Various cleanup. YAZ util used instead. - * - * Revision 1.2 1994/09/14 13:10:36 quinn - * Small changes - * - * Revision 1.1 1994/08/23 14:41:46 quinn - * First functional version of mfile. - * + * $Id: mfile.h,v 1.17 2002-04-04 14:14:13 adam Exp $ */ #ifndef MFILE_H #define MFILE_H #include +#include + +#ifdef WIN32 +typedef long off_t; +#else +#include +#endif #ifndef FILENAME_MAX #include #define FILENAME_MAX MAXPATHLEN #endif +#include + +YAZ_BEGIN_CDECL + #define MF_MIN_BLOCKS_CREAT 1 /* minimum free blocks in new dir */ -#define MF_DEFAULT_AREA "register" /* Use if no mf_init */ #define MF_MAX_PARTS 28 /* max # of part-files per metafile */ #define mf_blocksize(mf) ((mf)->blocksize) + typedef struct mf_dir { char name[FILENAME_MAX+1]; - int max_bytes; /* allocated bytes in this dir. */ - int avail_bytes; /* bytes left */ + off_t max_bytes; /* allocated bytes in this dir. */ + off_t avail_bytes; /* bytes left */ struct mf_dir *next; } mf_dir; @@ -54,7 +46,7 @@ typedef struct part_file int number; int top; int blocks; - int bytes; + off_t bytes; mf_dir *dir; char *path; int fd; @@ -70,10 +62,11 @@ typedef struct meta_file int no_files; int cur_file; int open; /* is this file open? */ - int blocksize; - int min_bytes_creat; /* minimum bytes required to enter directory */ + off_t blocksize; + off_t min_bytes_creat; /* minimum bytes required to enter directory */ MFile_area ma; int wr; + Zebra_mutex mutex; struct meta_file *next; } *MFile, meta_file; @@ -84,17 +77,18 @@ typedef struct MFile_area_struct mf_dir *dirs; struct meta_file *mfiles; struct MFile_area_struct *next; /* global list of active areas */ + Zebra_mutex mutex; } MFile_area_struct; /* * Open an area, cotaining metafiles in directories. */ -MFile_area mf_init(const char *name); +MFile_area mf_init(const char *name, const char *spec, const char *base); /* * Release an area. */ -int mf_dispose(MFile_area ma); +void mf_destroy(MFile_area ma); /* * Open a metafile. @@ -109,21 +103,29 @@ int mf_close(MFile mf); /* * Read one block from a metafile. Interface mirrors bfile. */ -int mf_read(MFile mf, int no, int offset, int num, void *buf); +int mf_read(MFile mf, int no, int offset, int nbytes, void *buf); /* * Same. */ -int mf_write(MFile mf, int no, int offset, int num, const void *buf); +int mf_write(MFile mf, int no, int offset, int nbytes, const void *buf); /* * Destroy a metafile, unlinking component files. File must be open. */ int mf_unlink(MFile mf); + +/* + * Destroy all metafiles. No files may be opened. + */ +void mf_reset(MFile_area ma); + /* * Unlink the file by name, rather than MFile-handle. */ int mf_unlink_name(MFile_area, const char *name); +YAZ_END_CDECL + #endif