http://www.ousob.com --- Legacy Redefined OuSob - File: /wwwroot/clipx/usr/include/htdig_db/db_int.h

/*- * See the file LICENSE for redistribution information. * * Copyright (c) 1996, 1997, 1998, 1999 * Sleepycat Software. All rights reserved. * * @(#)db_int.src 11.6 (Sleepycat) 10/1/99 */ #ifndef _DB_INTERNAL_H_ #define _DB_INTERNAL_H_ /******************************************************* * General includes. *******************************************************/ #include "db.h" #ifndef _MSC_VER /* WIN32 */ #ifndef NO_SYSTEM_INCLUDES #ifdef __STDC__ #include <stdarg.h> #else #include <varargs.h> #endif #endif #endif #include "queue.h" #include "shqueue.h" /******************************************************* * General purpose constants and macros. *******************************************************/ #define UINT16_T_MAX 0xffff /* Maximum 16 bit unsigned. */ #define UINT32_T_MAX 0xffffffff /* Maximum 32 bit unsigned. */ #define MEGABYTE 1048576 #define GIGABYTE 1073741824 #define MS_PER_SEC 1000 /* Milliseconds in a second. */ #define USEC_PER_MS 1000 /* Microseconds in a millisecond. */ #define DB_MIN_PGSIZE 0x000200 /* Minimum page size (512). */ #define DB_MAX_PGSIZE 0x010000 /* Maximum page size (65536). */ #define RECNO_OOB 0 /* Illegal record number. */ /* * If we are unable to determine the underlying filesystem block size, use * 8K on the grounds that most OS's use less than 8K for a VM page size. */ #define DB_DEF_IOSIZE (8 * 1024) /* * Aligning items to particular sizes or in pages or memory. ALIGNP is a * separate macro, as we've had to cast the pointer to different integral * types on different architectures. * * We cast pointers into unsigned longs when manipulating them because C89 * guarantees that u_long is the largest available integral type and further, * to never generate overflows. However, neither C89 or C9X requires that * any integer type be large enough to hold a pointer, although C9X created * the intptr_t type, which is guaranteed to hold a pointer but may or may * not exist. At some point in the future, we should test for intptr_t and * use it where available. */ #undef ALIGNTYPE #define ALIGNTYPE u_long #undef ALIGNP #define ALIGNP(value, bound) ALIGN((ALIGNTYPE)value, bound) #undef ALIGN #define ALIGN(value, bound) (((value) + (bound) - 1) & ~(((u_int)bound) - 1)) /* * There are several on-page structures that are declared to have a number of * fields followed by a variable length array of items. The structure size * without including the variable length array or the address of the first of * those elements can be found using SSZ. * * This macro can also be used to find the offset of a structure element in a * structure. This is used in various places to copy structure elements from * unaligned memory references, e.g., pointers into a packed page. * * There are two versions because compilers object if you take the address of * an array. */ #undef SSZ #define SSZ(name, field) ((int)&(((name *)0)->field)) #undef SSZA #define SSZA(name, field) ((int)&(((name *)0)->field[0])) /* Structure used to print flag values. */ typedef struct __fn { u_int32_t mask; /* Flag value. */ const char *name; /* Flag name. */ } FN; /* Set, clear and test flags. */ #define FLD_CLR(fld, f) (fld) &= ~(f) #define FLD_ISSET(fld, f) ((fld) & (f)) #define FLD_SET(fld, f) (fld) |= (f) #define F_CLR(p, f) (p)->flags &= ~(f) #define F_ISSET(p, f) ((p)->flags & (f)) #define F_SET(p, f) (p)->flags |= (f) #define LF_CLR(f) (flags &= ~(f)) #define LF_ISSET(f) (flags & (f)) #define LF_SET(f) (flags |= (f)) /* Display separator string. */ #undef DB_LINE #define DB_LINE "=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=" /* Unused, or not-used-yet variable. "Shut that bloody compiler up!" */ #define COMPQUIET(n, v) (n) = (v) /* * Purify and similar run-time tools complain about unitialized reads/writes * for structure fields whose only purpose is padding. */ #define UMRW(v) (v) = 0 /******************************************************* * Files. *******************************************************/ /* * We use 1024 as the maximum path length. It's too hard to figure out what * the real path length is, as it was traditionally stored in <sys/param.h>, * and that file isn't always available. */ #undef MAXPATHLEN #define MAXPATHLEN 1024 #define PATH_DOT "." /* Current working directory. */ #define PATH_SEPARATOR "/" /* Path separator character. */ /* * Flags understood by CDB___os_open. */ #define DB_OSO_CREATE 0x001 /* POSIX: O_CREAT */ #define DB_OSO_EXCL 0x002 /* POSIX: O_EXCL */ #define DB_OSO_LOG 0x004 /* Opening a log file. */ #define DB_OSO_RDONLY 0x008 /* POSIX: O_RDONLY */ #define DB_OSO_SEQ 0x010 /* Expected sequential access. */ #define DB_OSO_TEMP 0x020 /* Remove after last close. */ #define DB_OSO_TRUNC 0x040 /* POSIX: O_TRUNC */ /* * Seek options understood by CDB___os_seek. */ typedef enum { DB_OS_SEEK_CUR, /* POSIX: SEEK_CUR */ DB_OS_SEEK_END, /* POSIX: SEEK_END */ DB_OS_SEEK_SET /* POSIX: SEEK_SET */ } DB_OS_SEEK; /******************************************************* * Environment. *******************************************************/ /* Type passed to CDB___db_appname(). */ typedef enum { DB_APP_NONE=0, /* No type (region). */ DB_APP_DATA, /* Data file. */ DB_APP_LOG, /* Log file. */ DB_APP_TMP /* Temporary file. */ } APPNAME; /* Most initialization methods cannot be called after open is called. */ #define ENV_ILLEGAL_AFTER_OPEN(dbenv, name) \ if (F_ISSET((dbenv), DB_ENV_OPEN_CALLED)) \ return (CDB___db_mi_open(dbenv, name, 1)); /* We're not actually user hostile, honest. */ #define ENV_REQUIRES_CONFIG(dbenv, handle, subsystem) \ if (handle == NULL) \ return (CDB___db_env_config(dbenv, subsystem)); /******************************************************* * Database Access Methods. *******************************************************/ /* Initialization methods are often illegal before/after open is called. */ #define DB_ILLEGAL_AFTER_OPEN(dbp, name) \ if (F_ISSET((dbp), DB_OPEN_CALLED)) \ return (CDB___db_mi_open(dbp->dbenv, name, 1)); #define DB_ILLEGAL_BEFORE_OPEN(dbp, name) \ if (!F_ISSET((dbp), DB_OPEN_CALLED)) \ return (CDB___db_mi_open(dbp->dbenv, name, 0)); /* Some initialization methods are illegal if environment isn't local. */ #define DB_ILLEGAL_IN_ENV(dbp, name) \ if (!F_ISSET(dbp->dbenv, DB_ENV_DBLOCAL)) \ return (CDB___db_mi_env(dbp->dbenv, name)); #define DB_ILLEGAL_METHOD(dbp, flags) { \ int __ret; \ if ((__ret = CDB___dbh_am_chk(dbp, flags)) != 0) \ return (__ret); \ } /******************************************************* * Mpool. *******************************************************/ /* * File types for DB access methods. Negative numbers are reserved to DB. */ #define DB_FTYPE_SET -1 /* Call pgin/pgout functions. */ #define DB_FTYPE_NOTSET 0 /* Don't call... */ /* Structure used as the DB pgin/pgout pgcookie. */ typedef struct __dbpginfo { size_t db_pagesize; /* Underlying page size. */ int needswap; /* If swapping required. */ } DB_PGINFO; /******************************************************* * Log. *******************************************************/ /* Initialize an LSN to 'zero'. */ #define ZERO_LSN(LSN) { \ (LSN).file = 0; \ (LSN).offset = 0; \ } /* Return 1 if LSN is a 'zero' lsn, otherwise return 0. */ #define IS_ZERO_LSN(LSN) ((LSN).file == 0) /* Test if we need to log a change. */ #define DB_LOGGING(dbc) \ (F_ISSET((dbc)->dbp->dbenv, DB_ENV_LOGGING) && \ !F_ISSET(dbc, DBC_RECOVER)) /******************************************************* * Txn. *******************************************************/ #define DB_NONBLOCK(C) ((C)->txn != NULL && F_ISSET((C)->txn, TXN_NOWAIT)) /******************************************************* * Global variables. *******************************************************/ /* * !!! * Initialized in env/env_method.c, don't change this without changing that. */ typedef struct __db_globals { u_int32_t db_mutexlocks; /* db_set_mutexlocks */ u_int32_t db_pageyield; /* db_set_pageyield */ u_int32_t db_panic; /* db_set_panic */ u_int32_t db_region_init; /* db_set_region_init */ u_int32_t db_tas_spins; /* db_set_tas_spins */ /* XA: list of opened environments. */ TAILQ_HEAD(__db_envq, __db_env) db_envq; } DB_GLOBALS; extern DB_GLOBALS CDB___db_global_values; #define DB_GLOBAL(v) CDB___db_global_values.v /* Forward structure declarations. */ struct __db_reginfo_t; typedef struct __db_reginfo_t REGINFO; struct __mutex_t; typedef struct __mutex_t MUTEX; /******************************************************* * More general includes. *******************************************************/ #include "debug.h" #include "mutex.h" #include "mutex_ext.h" #include "region.h" #include "env_ext.h" #include "os.h" #include "os_ext.h" #include "common_ext.h" /******************************************************* * Stuff not defined in native WIN32 Env. *******************************************************/ #ifdef _MSC_VER /* _WIN32 */ #include <windows.h> #define S_IRGRP 0 /* R for group */ #define S_IWGRP 0 /* W for group */ #define S_IROTH 0 /* R for other */ #define S_IWOTH 0 /* W for other */ #endif #ifdef _MSC_VER #ifndef S_IRUSR #if defined(_WIN32) || defined(WIN16) #define S_IRUSR S_IREAD /* R for owner */ #define S_IWUSR S_IWRITE /* W for owner */ #define S_IRGRP 0 /* R for group */ #define S_IWGRP 0 /* W for group */ #define S_IROTH 0 /* R for other */ #define S_IWOTH 0 /* W for other */ #else #define S_IRUSR 0000400 /* R for owner */ #define S_IWUSR 0000200 /* W for owner */ #define S_IRGRP 0000040 /* R for group */ #define S_IWGRP 0000020 /* W for group */ #define S_IROTH 0000004 /* R for other */ #define S_IWOTH 0000002 /* W for other */ #endif /* _WIN32 || WIN16 */ #endif #endif #endif /* !_DB_INTERNAL_H_ */