fileops_auto.c

这是linux下运行的mysql软件包,可用于linux 下安装 php + mysql + apach 的网络配置

	memcpy(&argp->prev_lsn, bp, sizeof(DB_LSN));
	bp += sizeof(DB_LSN);

	memset(&argp->name, 0, sizeof(argp->name));
	memcpy(&argp->name.size, bp, sizeof(u_int32_t));
	bp += sizeof(u_int32_t);
	argp->name.data = bp;
	bp += argp->name.size;

	memset(&argp->fid, 0, sizeof(argp->fid));
	memcpy(&argp->fid.size, bp, sizeof(u_int32_t));
	bp += sizeof(u_int32_t);
	argp->fid.data = bp;
	bp += argp->fid.size;

	memcpy(&uinttmp, bp, sizeof(uinttmp));
	argp->appname = (u_int32_t)uinttmp;
	bp += sizeof(uinttmp);

	*argpp = argp;
	return (0);
}

/*
 * PUBLIC: int __fop_write_log __P((DB_ENV *, DB_TXN *, DB_LSN *,
 * PUBLIC:     u_int32_t, const DBT *, u_int32_t, u_int32_t, const DBT *,
 * PUBLIC:     u_int32_t));
 */
int
__fop_write_log(dbenv, txnid, ret_lsnp, flags,
    name, appname, offset, page, flag)
	DB_ENV *dbenv;
	DB_TXN *txnid;
	DB_LSN *ret_lsnp;
	u_int32_t flags;
	const DBT *name;
	u_int32_t appname;
	u_int32_t offset;
	const DBT *page;
	u_int32_t flag;
{
	DBT logrec;
	DB_LSN *lsnp, null_lsn;
	u_int32_t zero;
	u_int32_t uinttmp;
	u_int32_t npad, rectype, txn_num;
	int ret;
	u_int8_t *bp;

	rectype = DB___fop_write;
	npad = 0;

	if (txnid == NULL) {
		txn_num = 0;
		null_lsn.file = 0;
		null_lsn.offset = 0;
		lsnp = &null_lsn;
	} else {
		if (TAILQ_FIRST(&txnid->kids) != NULL &&
		    (ret = __txn_activekids(dbenv, rectype, txnid)) != 0)
			return (ret);
		txn_num = txnid->txnid;
		lsnp = &txnid->last_lsn;
	}

	logrec.size = sizeof(rectype) + sizeof(txn_num) + sizeof(DB_LSN)
	    + sizeof(u_int32_t) + (name == NULL ? 0 : name->size)
	    + sizeof(u_int32_t)
	    + sizeof(u_int32_t)
	    + sizeof(u_int32_t) + (page == NULL ? 0 : page->size)
	    + sizeof(u_int32_t);
	if (CRYPTO_ON(dbenv)) {
		npad =
		    ((DB_CIPHER *)dbenv->crypto_handle)->adj_size(logrec.size);
		logrec.size += npad;
	}

	if ((ret = __os_malloc(dbenv,
	    logrec.size, &logrec.data)) != 0)
		return (ret);

	if (npad > 0)
		memset((u_int8_t *)logrec.data + logrec.size - npad, 0, npad);

	bp = logrec.data;

	memcpy(bp, &rectype, sizeof(rectype));
	bp += sizeof(rectype);

	memcpy(bp, &txn_num, sizeof(txn_num));
	bp += sizeof(txn_num);

	memcpy(bp, lsnp, sizeof(DB_LSN));
	bp += sizeof(DB_LSN);

	if (name == NULL) {
		zero = 0;
		memcpy(bp, &zero, sizeof(u_int32_t));
		bp += sizeof(u_int32_t);
	} else {
		memcpy(bp, &name->size, sizeof(name->size));
		bp += sizeof(name->size);
		memcpy(bp, name->data, name->size);
		bp += name->size;
	}

	uinttmp = (u_int32_t)appname;
	memcpy(bp, &uinttmp, sizeof(uinttmp));
	bp += sizeof(uinttmp);

	uinttmp = (u_int32_t)offset;
	memcpy(bp, &uinttmp, sizeof(uinttmp));
	bp += sizeof(uinttmp);

	if (page == NULL) {
		zero = 0;
		memcpy(bp, &zero, sizeof(u_int32_t));
		bp += sizeof(u_int32_t);
	} else {
		memcpy(bp, &page->size, sizeof(page->size));
		bp += sizeof(page->size);
		memcpy(bp, page->data, page->size);
		bp += page->size;
	}

	uinttmp = (u_int32_t)flag;
	memcpy(bp, &uinttmp, sizeof(uinttmp));
	bp += sizeof(uinttmp);

	DB_ASSERT((u_int32_t)(bp - (u_int8_t *)logrec.data) <= logrec.size);
	ret = dbenv->log_put(dbenv,
	   ret_lsnp, (DBT *)&logrec, flags | DB_NOCOPY);
	if (txnid != NULL && ret == 0)
		txnid->last_lsn = *ret_lsnp;
#ifdef LOG_DIAGNOSTIC
	if (ret != 0)
		(void)__fop_write_print(dbenv,
		    (DBT *)&logrec, ret_lsnp, NULL, NULL);
#endif
	__os_free(dbenv, logrec.data);
	return (ret);
}

/*
 * PUBLIC: int __fop_write_getpgnos __P((DB_ENV *, DBT *, DB_LSN *,
 * PUBLIC:     db_recops, void *));
 */
int
__fop_write_getpgnos(dbenv, rec, lsnp, notused1, summary)
	DB_ENV *dbenv;
	DBT *rec;
	DB_LSN *lsnp;
	db_recops notused1;
	void *summary;
{
	TXN_RECS *t;
	int ret;
	COMPQUIET(rec, NULL);
	COMPQUIET(notused1, DB_TXN_ABORT);

	t = (TXN_RECS *)summary;

	if ((ret = __rep_check_alloc(dbenv, t, 1)) != 0)
		return (ret);

	t->array[t->npages].flags = LSN_PAGE_NOLOCK;
	t->array[t->npages].lsn = *lsnp;
	t->array[t->npages].fid = DB_LOGFILEID_INVALID;
	memset(&t->array[t->npages].pgdesc, 0,
	    sizeof(t->array[t->npages].pgdesc));

	t->npages++;

	return (0);
}

/*
 * PUBLIC: int __fop_write_print __P((DB_ENV *, DBT *, DB_LSN *,
 * PUBLIC:     db_recops, void *));
 */
int
__fop_write_print(dbenv, dbtp, lsnp, notused2, notused3)
	DB_ENV *dbenv;
	DBT *dbtp;
	DB_LSN *lsnp;
	db_recops notused2;
	void *notused3;
{
	__fop_write_args *argp;
	u_int32_t i;
	int ch;
	int ret;

	notused2 = DB_TXN_ABORT;
	notused3 = NULL;

	if ((ret = __fop_write_read(dbenv, dbtp->data, &argp)) != 0)
		return (ret);
	(void)printf(
	    "[%lu][%lu]__fop_write: rec: %lu txnid %lx prevlsn [%lu][%lu]\n",
	    (u_long)lsnp->file,
	    (u_long)lsnp->offset,
	    (u_long)argp->type,
	    (u_long)argp->txnid->txnid,
	    (u_long)argp->prev_lsn.file,
	    (u_long)argp->prev_lsn.offset);
	(void)printf("\tname: ");
	for (i = 0; i < argp->name.size; i++) {
		ch = ((u_int8_t *)argp->name.data)[i];
		printf(isprint(ch) || ch == 0x0a ? "%c" : "%#x ", ch);
	}
	(void)printf("\n");
	(void)printf("\tappname: %lu\n", (u_long)argp->appname);
	(void)printf("\toffset: %lu\n", (u_long)argp->offset);
	(void)printf("\tpage: ");
	for (i = 0; i < argp->page.size; i++) {
		ch = ((u_int8_t *)argp->page.data)[i];
		printf(isprint(ch) || ch == 0x0a ? "%c" : "%#x ", ch);
	}
	(void)printf("\n");
	(void)printf("\tflag: %lu\n", (u_long)argp->flag);
	(void)printf("\n");
	__os_free(dbenv, argp);
	return (0);
}

/*
 * PUBLIC: int __fop_write_read __P((DB_ENV *, void *, __fop_write_args **));
 */
int
__fop_write_read(dbenv, recbuf, argpp)
	DB_ENV *dbenv;
	void *recbuf;
	__fop_write_args **argpp;
{
	__fop_write_args *argp;
	u_int32_t uinttmp;
	u_int8_t *bp;
	int ret;

	if ((ret = __os_malloc(dbenv,
	    sizeof(__fop_write_args) + sizeof(DB_TXN), &argp)) != 0)
		return (ret);

	argp->txnid = (DB_TXN *)&argp[1];

	bp = recbuf;
	memcpy(&argp->type, bp, sizeof(argp->type));
	bp += sizeof(argp->type);

	memcpy(&argp->txnid->txnid,  bp, sizeof(argp->txnid->txnid));
	bp += sizeof(argp->txnid->txnid);

	memcpy(&argp->prev_lsn, bp, sizeof(DB_LSN));
	bp += sizeof(DB_LSN);

	memset(&argp->name, 0, sizeof(argp->name));
	memcpy(&argp->name.size, bp, sizeof(u_int32_t));
	bp += sizeof(u_int32_t);
	argp->name.data = bp;
	bp += argp->name.size;

	memcpy(&uinttmp, bp, sizeof(uinttmp));
	argp->appname = (u_int32_t)uinttmp;
	bp += sizeof(uinttmp);

	memcpy(&uinttmp, bp, sizeof(uinttmp));
	argp->offset = (u_int32_t)uinttmp;
	bp += sizeof(uinttmp);

	memset(&argp->page, 0, sizeof(argp->page));
	memcpy(&argp->page.size, bp, sizeof(u_int32_t));
	bp += sizeof(u_int32_t);
	argp->page.data = bp;
	bp += argp->page.size;

	memcpy(&uinttmp, bp, sizeof(uinttmp));
	argp->flag = (u_int32_t)uinttmp;
	bp += sizeof(uinttmp);

	*argpp = argp;
	return (0);
}

/*
 * PUBLIC: int __fop_rename_log __P((DB_ENV *, DB_TXN *, DB_LSN *,
 * PUBLIC:     u_int32_t, const DBT *, const DBT *, const DBT *, u_int32_t));
 */
int
__fop_rename_log(dbenv, txnid, ret_lsnp, flags,
    oldname, newname, fileid, appname)
	DB_ENV *dbenv;
	DB_TXN *txnid;
	DB_LSN *ret_lsnp;
	u_int32_t flags;
	const DBT *oldname;
	const DBT *newname;
	const DBT *fileid;
	u_int32_t appname;
{
	DBT logrec;
	DB_LSN *lsnp, null_lsn;
	u_int32_t zero;
	u_int32_t uinttmp;
	u_int32_t npad, rectype, txn_num;
	int ret;
	u_int8_t *bp;

	rectype = DB___fop_rename;
	npad = 0;

	if (txnid == NULL) {
		txn_num = 0;
		null_lsn.file = 0;
		null_lsn.offset = 0;
		lsnp = &null_lsn;
	} else {
		if (TAILQ_FIRST(&txnid->kids) != NULL &&
		    (ret = __txn_activekids(dbenv, rectype, txnid)) != 0)
			return (ret);
		txn_num = txnid->txnid;
		lsnp = &txnid->last_lsn;
	}

	logrec.size = sizeof(rectype) + sizeof(txn_num) + sizeof(DB_LSN)
	    + sizeof(u_int32_t) + (oldname == NULL ? 0 : oldname->size)
	    + sizeof(u_int32_t) + (newname == NULL ? 0 : newname->size)
	    + sizeof(u_int32_t) + (fileid == NULL ? 0 : fileid->size)
	    + sizeof(u_int32_t);
	if (CRYPTO_ON(dbenv)) {
		npad =
		    ((DB_CIPHER *)dbenv->crypto_handle)->adj_size(logrec.size);
		logrec.size += npad;
	}

	if ((ret = __os_malloc(dbenv,
	    logrec.size, &logrec.data)) != 0)
		return (ret);

	if (npad > 0)
		memset((u_int8_t *)logrec.data + logrec.size - npad, 0, npad);

	bp = logrec.data;

	memcpy(bp, &rectype, sizeof(rectype));
	bp += sizeof(rectype);

	memcpy(bp, &txn_num, sizeof(txn_num));
	bp += sizeof(txn_num);

	memcpy(bp, lsnp, sizeof(DB_LSN));
	bp += sizeof(DB_LSN);

	if (oldname == NULL) {
		zero = 0;
		memcpy(bp, &zero, sizeof(u_int32_t));
		bp += sizeof(u_int32_t);
	} else {
		memcpy(bp, &oldname->size, sizeof(oldname->size));
		bp += sizeof(oldname->size);
		memcpy(bp, oldname->data, oldname->size);
		bp += oldname->size;
	}

	if (newname == NULL) {
		zero = 0;
		memcpy(bp, &zero, sizeof(u_int32_t));
		bp += sizeof(u_int32_t);
	} else {
		memcpy(bp, &newname->size, sizeof(newname->size));
		bp += sizeof(newname->size);
		memcpy(bp, newname->data, newname->size);
		bp += newname->size;
	}

	if (fileid == NULL) {
		zero = 0;
		memcpy(bp, &zero, sizeof(u_int32_t));
		bp += sizeof(u_int32_t);
	} else {
		memcpy(bp, &fileid->size, sizeof(fileid->size));
		bp += sizeof(fileid->size);
		memcpy(bp, fileid->data, fileid->size);
		bp += fileid->size;
	}

	uinttmp = (u_int32_t)appname;
	memcpy(bp, &uinttmp, sizeof(uinttmp));
	bp += sizeof(uinttmp);

	DB_ASSERT((u_int32_t)(bp - (u_int8_t *)logrec.data) <= logrec.size);
	ret = dbenv->log_put(dbenv,
	   ret_lsnp, (DBT *)&logrec, flags | DB_NOCOPY);
	if (txnid != NULL && ret == 0)
		txnid->last_lsn = *ret_lsnp;
#ifdef LOG_DIAGNOSTIC
	if (ret != 0)
		(void)__fop_rename_print(dbenv,
		    (DBT *)&logrec, ret_lsnp, NULL, NULL);
#endif
	__os_free(dbenv, logrec.data);
	return (ret);
}

/*
 * PUBLIC: int __fop_rename_getpgnos __P((DB_ENV *, DBT *, DB_LSN *,
 * PUBLIC:     db_recops, void *));
 */
int
__fop_rename_getpgnos(dbenv, rec, lsnp, notused1, summary)
	DB_ENV *dbenv;
	DBT *rec;
	DB_LSN *lsnp;
	db_recops notused1;
	void *summary;
{
	TXN_RECS *t;
	int ret;
	COMPQUIET(rec, NULL);
	COMPQUIET(notused1, DB_TXN_ABORT);

	t = (TXN_RECS *)summary;

	if ((ret = __rep_check_alloc(dbenv, t, 1)) != 0)
		return (ret);

	t->array[t->npages].flags = LSN_PAGE_NOLOCK;
	t->array[t->npages].lsn = *lsnp;
	t->array[t->npages].fid = DB_LOGFILEID_INVALID;
	memset(&t->array[t->npages].pgdesc, 0,
	    sizeof(t->array[t->npages].pgdesc));

	t->npages++;

	return (0);
}

/*
 * PUBLIC: int __fop_rename_print __P((DB_ENV *, DBT *, DB_LSN *,
 * PUBLIC:     db_recops, void *));
 */
int
__fop_rename_print(dbenv, dbtp, lsnp, notused2, notused3)
	DB_ENV *dbenv;
	DBT *dbtp;
	DB_LSN *lsnp;
	db_recops notused2;
	void *notused3;
{
	__fop_rename_args *argp;
	u_int32_t i;
	int ch;
	int ret;

	notused2 = DB_TXN_ABORT;
	notused3 = NULL;