cxx_mpool.cpp
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上传日期:2022-05-23
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文件大小:3k
- /*-
- * See the file LICENSE for redistribution information.
- *
- * Copyright (c) 1997-2002
- * Sleepycat Software. All rights reserved.
- */
- #include "db_config.h"
- #ifndef lint
- static const char revid[] = "$Id: cxx_mpool.cpp,v 11.20 2002/07/03 21:03:53 bostic Exp $";
- #endif /* not lint */
- #include <errno.h>
- #include "db_cxx.h"
- #include "dbinc/cxx_int.h"
- #include "db_int.h"
- // Helper macros for simple methods that pass through to the
- // underlying C method. It may return an error or raise an exception.
- // Note this macro expects that input _argspec is an argument
- // list element (e.g., "char *arg") and that _arglist is the arguments
- // that should be passed through to the C method (e.g., "(mpf, arg)")
- //
- #define DB_MPOOLFILE_METHOD(_name, _argspec, _arglist, _retok)
- int DbMpoolFile::_name _argspec
- {
- int ret;
- DB_MPOOLFILE *mpf = unwrap(this);
-
- if (mpf == NULL)
- ret = EINVAL;
- else
- ret = mpf->_name _arglist;
- if (!_retok(ret))
- DB_ERROR("DbMpoolFile::"#_name, ret, ON_ERROR_UNKNOWN);
- return (ret);
- }
- #define DB_MPOOLFILE_METHOD_VOID(_name, _argspec, _arglist)
- void DbMpoolFile::_name _argspec
- {
- DB_MPOOLFILE *mpf = unwrap(this);
-
- mpf->_name _arglist;
- }
- ////////////////////////////////////////////////////////////////////////
- // //
- // DbMpoolFile //
- // //
- ////////////////////////////////////////////////////////////////////////
- DbMpoolFile::DbMpoolFile()
- : imp_(0)
- {
- }
- DbMpoolFile::~DbMpoolFile()
- {
- }
- int DbMpoolFile::close(u_int32_t flags)
- {
- DB_MPOOLFILE *mpf = unwrap(this);
- int ret;
- if (mpf == NULL)
- ret = EINVAL;
- else
- ret = mpf->close(mpf, flags);
- imp_ = 0; // extra safety
- // This may seem weird, but is legal as long as we don't access
- // any data before returning.
- delete this;
- if (!DB_RETOK_STD(ret))
- DB_ERROR("DbMpoolFile::close", ret, ON_ERROR_UNKNOWN);
- return (ret);
- }
- DB_MPOOLFILE_METHOD(get, (db_pgno_t *pgnoaddr, u_int32_t flags, void *pagep),
- (mpf, pgnoaddr, flags, pagep), DB_RETOK_MPGET)
- DB_MPOOLFILE_METHOD_VOID(last_pgno, (db_pgno_t *pgnoaddr), (mpf, pgnoaddr))
- DB_MPOOLFILE_METHOD(open,
- (const char *file, u_int32_t flags, int mode, size_t pagesize),
- (mpf, file, flags, mode, pagesize), DB_RETOK_STD)
- DB_MPOOLFILE_METHOD(put, (void *pgaddr, u_int32_t flags),
- (mpf, pgaddr, flags), DB_RETOK_STD)
- DB_MPOOLFILE_METHOD_VOID(refcnt, (db_pgno_t *pgnoaddr), (mpf, pgnoaddr))
- DB_MPOOLFILE_METHOD(set, (void *pgaddr, u_int32_t flags),
- (mpf, pgaddr, flags), DB_RETOK_STD)
- DB_MPOOLFILE_METHOD(set_clear_len, (u_int32_t len),
- (mpf, len), DB_RETOK_STD)
- DB_MPOOLFILE_METHOD(set_fileid, (u_int8_t *fileid),
- (mpf, fileid), DB_RETOK_STD)
- DB_MPOOLFILE_METHOD(set_ftype, (int ftype),
- (mpf, ftype), DB_RETOK_STD)
- DB_MPOOLFILE_METHOD(set_lsn_offset, (int32_t offset),
- (mpf, offset), DB_RETOK_STD)
- DB_MPOOLFILE_METHOD(set_pgcookie, (DBT *dbt),
- (mpf, dbt), DB_RETOK_STD)
- DB_MPOOLFILE_METHOD_VOID(set_unlink, (int ul), (mpf, ul))
- DB_MPOOLFILE_METHOD(sync, (),
- (mpf), DB_RETOK_STD)