73 lines
1.7 KiB
C
73 lines
1.7 KiB
C
/* Copyright (c) 1993, by Pandora Systems */
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/* Author: Mitra <mitra@path.net> */
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/* Allocation code copied and adapted from:
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prospero/alpha.5.2a+/lib/pfs/flalloc */
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#include "dnscache_alloc.h"
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#include <pfs.h>
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#include <pfs_threads.h>
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#include <mitra_macros.h>
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static DNSCACHE lfree = NULL; /* Free dnscaches */
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/* These are global variables which will be read by dirsrv.c
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Too bad C doesn't have better methods for structuring such global data. */
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int dnscache_count = 0;
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int dnscache_max = 0;
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/************* Standard routines to alloc, free and copy *************/
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/*
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* dnscache_alloc - allocate and initialize DNSCACHE structure
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*
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* returns a pointer to an initialized structure of type
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* DNSCACHE. If it is unable to allocate such a structure, it
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* signals out_of_memory();
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*/
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DNSCACHE
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dnscache_alloc()
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{
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DNSCACHE acache;
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TH_STRUC_ALLOC(dnscache,DNSCACHE,acache);
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acache->name = NULL;
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acache->usecount = 0;
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bzero(&acache->sockad,sizeof(acache->sockad));
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return(acache);
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}
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/*
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* dnscache_free - free a DNSCACHE structure
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*
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* dnscache_free takes a pointer to a DNSCACHE structure and adds it to
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* the free list for later reuse.
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*/
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void
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dnscache_free(DNSCACHE acache)
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{
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stfree(acache->name) ; acache->name = NULL;
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TH_STRUC_FREE(dnscache,DNSCACHE,acache);
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}
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/*
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* dnscache_lfree - free a linked list of DNSCACHE structures.
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*
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* dnscache_lfree takes a pointer to a dnscache structure frees it and
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* any linked
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* DNSCACHE structures. It is used to free an entire list of WAISMSGBUFF
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* structures.
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*/
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void
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dnscache_lfree(acache)
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DNSCACHE acache;
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{
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TH_STRUC_LFREE(DNSCACHE,acache,dnscache_free);
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}
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void
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dnscache_freespares()
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{
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TH_FREESPARES(dnscache,DNSCACHE);
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}
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