74 lines
2.6 KiB
C
74 lines
2.6 KiB
C
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/******************************************************************************
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*
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* shmcat.h: structures related to shared catalog memory
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*
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* Module %M% Version %I% Date %H%
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*
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* (c) Copyright 1998 Ardent Software Inc. - All Rights Reserved
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* This is unpublished proprietary source code of Ardent Software Inc.
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* The copyright notice above does not evidence any actual or intended
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* publication of such source code.
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*
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*******************************************************************************
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*
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* Maintenence log - insert most recent change descriptions at top
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*
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* Date.... GTAR# WHO Description.........................................
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* 10/14/98 23801 SAP Change copyrights.
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* 04/03/95 16273 AGM Rename S_OK to avoid conflict on Windows-NT
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* 11/13/90 7728 MAA Increased MAX_CAT to 4096
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* 02/14/89 5749 DTW add Voc_fd
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* 11/27/88 - - New file
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*
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******************************************************************************/
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#define MAX_IDLEN 256
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#define EXTRA_DIR 4
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#define MAX_CAT 4096
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/*
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* Header for shared catalog space
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*/
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#define SHCATHDR struct shcathdr
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struct shcathdr
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{
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int state; /* current state of shared memory */
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int progcnt; /* current number of programs loaded */
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int dir, /* offset to array of directory entries */
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nameblk, /* offset to block containing unix pathnames */
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codeblk, /* offset to block containing basic code */
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shcatend; /* offset to last byte in shared memory */
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};
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/* values for shcathdr state variable */
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#define S_DETACHED 0x1 /* segment has been detached */
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#define S_LOADING 0x2 /* segment is new and being loaded */
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#define S_MODIFIED 0x3 /* segment is being modified */
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#define S_OK_FOR_USE 0x4 /* segment is okay for use */
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/* command values for modify_shm */
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#define S_DELETE 0x1 /* delete a program */
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#define S_ADD 0x2 /* add a new program */
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#define S_UPDATE 0x3 /* replace a program with a new copy */
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#define S_DESTROY 0x4 /* remove the entire shared memory segment */
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/*
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* directory entry for programs stored in shared memory
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*/
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#define DIR_ENTRY struct dir_entry
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struct dir_entry
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{
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int pathname; /* offset to unix pathname */
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int size; /* size of program shared memory*/
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int code; /* offset to program structure */
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int totref, /* count of all references */
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curref; /* current number of users */
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};
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extern char *Unix_name[]; /* full unix pathnames */
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extern char *Recstr[]; /* record name */
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extern char *Filestr[]; /* pathname for directory (account & file) */
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extern SHCATHDR *Hdrblk;
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extern DBFILE *Voc_fd; /* VOC file ptr */
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