2021-11-15 15:35:39 +00:00
|
|
|
/* $Id: mandoc_xr.c,v 1.4 2020/06/22 19:20:40 schwarze Exp $ */
|
2017-07-31 19:17:54 +00:00
|
|
|
/*
|
|
|
|
|
* Copyright (c) 2017 Ingo Schwarze <schwarze@openbsd.org>
|
|
|
|
|
*
|
|
|
|
|
* Permission to use, copy, modify, and distribute this software for any
|
|
|
|
|
* purpose with or without fee is hereby granted, provided that the above
|
|
|
|
|
* copyright notice and this permission notice appear in all copies.
|
|
|
|
|
*
|
|
|
|
|
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
|
|
|
|
|
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
|
|
|
|
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
|
|
|
|
|
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
|
|
|
|
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
|
|
|
|
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
|
|
|
|
|
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
|
|
|
|
*/
|
2021-11-15 15:35:39 +00:00
|
|
|
#include "config.h"
|
|
|
|
|
|
2017-07-31 19:17:54 +00:00
|
|
|
#include <sys/types.h>
|
|
|
|
|
|
|
|
|
|
#include <assert.h>
|
|
|
|
|
#include <stddef.h>
|
|
|
|
|
#include <stdint.h>
|
|
|
|
|
#include <stdlib.h>
|
|
|
|
|
#include <string.h>
|
|
|
|
|
|
|
|
|
|
#include "mandoc_aux.h"
|
|
|
|
|
#include "mandoc_ohash.h"
|
|
|
|
|
#include "mandoc_xr.h"
|
|
|
|
|
|
|
|
|
|
static struct ohash *xr_hash = NULL;
|
|
|
|
|
static struct mandoc_xr *xr_first = NULL;
|
|
|
|
|
static struct mandoc_xr *xr_last = NULL;
|
|
|
|
|
|
|
|
|
|
static void mandoc_xr_clear(void);
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
static void
|
|
|
|
|
mandoc_xr_clear(void)
|
|
|
|
|
{
|
|
|
|
|
struct mandoc_xr *xr;
|
|
|
|
|
unsigned int slot;
|
|
|
|
|
|
|
|
|
|
if (xr_hash == NULL)
|
|
|
|
|
return;
|
|
|
|
|
for (xr = ohash_first(xr_hash, &slot); xr != NULL;
|
|
|
|
|
xr = ohash_next(xr_hash, &slot))
|
|
|
|
|
free(xr);
|
|
|
|
|
ohash_delete(xr_hash);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
|
mandoc_xr_reset(void)
|
|
|
|
|
{
|
|
|
|
|
if (xr_hash == NULL)
|
|
|
|
|
xr_hash = mandoc_malloc(sizeof(*xr_hash));
|
|
|
|
|
else
|
|
|
|
|
mandoc_xr_clear();
|
|
|
|
|
mandoc_ohash_init(xr_hash, 5,
|
|
|
|
|
offsetof(struct mandoc_xr, hashkey));
|
|
|
|
|
xr_first = xr_last = NULL;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
int
|
|
|
|
|
mandoc_xr_add(const char *sec, const char *name, int line, int pos)
|
|
|
|
|
{
|
|
|
|
|
struct mandoc_xr *xr, *oxr;
|
|
|
|
|
const char *pend;
|
|
|
|
|
size_t ssz, nsz, tsz;
|
|
|
|
|
unsigned int slot;
|
|
|
|
|
int ret;
|
|
|
|
|
uint32_t hv;
|
|
|
|
|
|
|
|
|
|
if (xr_hash == NULL)
|
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
|
|
ssz = strlen(sec) + 1;
|
|
|
|
|
nsz = strlen(name) + 1;
|
|
|
|
|
tsz = ssz + nsz;
|
|
|
|
|
xr = mandoc_malloc(sizeof(*xr) + tsz);
|
|
|
|
|
xr->next = NULL;
|
|
|
|
|
xr->sec = xr->hashkey;
|
|
|
|
|
xr->name = xr->hashkey + ssz;
|
|
|
|
|
xr->line = line;
|
|
|
|
|
xr->pos = pos;
|
|
|
|
|
xr->count = 1;
|
|
|
|
|
memcpy(xr->sec, sec, ssz);
|
|
|
|
|
memcpy(xr->name, name, nsz);
|
|
|
|
|
|
|
|
|
|
pend = xr->hashkey + tsz;
|
|
|
|
|
hv = ohash_interval(xr->hashkey, &pend);
|
|
|
|
|
slot = ohash_lookup_memory(xr_hash, xr->hashkey, tsz, hv);
|
|
|
|
|
if ((oxr = ohash_find(xr_hash, slot)) == NULL) {
|
|
|
|
|
ohash_insert(xr_hash, slot, xr);
|
|
|
|
|
if (xr_first == NULL)
|
|
|
|
|
xr_first = xr;
|
|
|
|
|
else
|
|
|
|
|
xr_last->next = xr;
|
|
|
|
|
xr_last = xr;
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
oxr->count++;
|
|
|
|
|
ret = (oxr->line == -1) ^ (xr->line == -1);
|
|
|
|
|
if (xr->line == -1)
|
|
|
|
|
oxr->line = -1;
|
|
|
|
|
free(xr);
|
|
|
|
|
return ret;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
struct mandoc_xr *
|
|
|
|
|
mandoc_xr_get(void)
|
|
|
|
|
{
|
|
|
|
|
return xr_first;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
|
mandoc_xr_free(void)
|
|
|
|
|
{
|
|
|
|
|
mandoc_xr_clear();
|
|
|
|
|
free(xr_hash);
|
|
|
|
|
xr_hash = NULL;
|
|
|
|
|
}
|
