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-rw-r--r--db2/db_int.h141
1 files changed, 73 insertions, 68 deletions
diff --git a/db2/db_int.h b/db2/db_int.h
index 92a3817764..0016240e70 100644
--- a/db2/db_int.h
+++ b/db2/db_int.h
@@ -4,14 +4,15 @@
* Copyright (c) 1996, 1997, 1998
* Sleepycat Software. All rights reserved.
*
- * @(#)db_int.h.src 10.62 (Sleepycat) 5/23/98
+ * @(#)db_int.h 10.77 (Sleepycat) 1/3/99
*/
#ifndef _DB_INTERNAL_H_
#define _DB_INTERNAL_H_
-#include <db.h> /* Standard DB include file. */
+#include "db.h" /* Standard DB include file. */
#include "queue.h"
+#include "shqueue.h"
/*******************************************************
* General purpose constants and macros.
@@ -75,27 +76,7 @@
#define R_ADDR(base, offset) ((void *)((u_int8_t *)((base)->addr) + offset))
#define R_OFFSET(base, p) ((u_int8_t *)(p) - (u_int8_t *)(base)->addr)
-/* Free and free-string macros that overwrite memory. */
-#ifdef DIAGNOSTIC
-#undef FREE
-#define FREE(p, len) { \
- memset(p, 0xff, len); \
- __db_free(p); \
-}
-#undef FREES
-#define FREES(p) { \
- FREE(p, strlen(p)); \
-}
-#else
-#undef FREE
-#define FREE(p, len) { \
- __db_free(p); \
-}
-#undef FREES
-#define FREES(p) { \
- __db_free(p); \
-}
-#endif
+#define DB_DEFAULT 0x000000 /* No flag was specified. */
/* Structure used to print flag values. */
typedef struct __fn {
@@ -111,25 +92,29 @@ typedef struct __fn {
#define LF_CLR(f) (flags &= ~(f))
#define LF_ISSET(f) (flags & (f))
+/*
+ * Panic check:
+ * All interfaces check the panic flag, if it's set, the tree is dead.
+ */
+#define DB_PANIC_CHECK(dbp) { \
+ if ((dbp)->dbenv != NULL && (dbp)->dbenv->db_panic != 0) \
+ return (DB_RUNRECOVERY); \
+}
+
/* Display separator string. */
#undef DB_LINE
#define DB_LINE "=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-="
-/* Global variables. */
-typedef struct __db_globals {
- int db_mutexlocks; /* DB_MUTEXLOCKS */
- int db_region_anon; /* DB_REGION_ANON, DB_REGION_NAME */
- int db_region_init; /* DB_REGION_INIT */
- int db_tsl_spins; /* DB_TSL_SPINS */
- int db_pageyield; /* DB_PAGEYIELD */
-} DB_GLOBALS;
-extern DB_GLOBALS __db_global_values;
-#define DB_GLOBAL(v) __db_global_values.v
-
/* 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
+
+/*
* Win16 needs specific syntax on callback functions. Nobody else cares.
*/
#ifndef DB_CALLBACK
@@ -155,8 +140,6 @@ extern DB_GLOBALS __db_global_values;
*******************************************************/
typedef unsigned char tsl_t;
-
-
/*
* !!!
* Various systems require different alignments for mutexes (the worst we've
@@ -204,21 +187,6 @@ typedef struct _db_mutex_t {
if (F_ISSET(dbp, DB_AM_THREAD)) \
(void)__db_mutex_unlock((db_mutex_t *)(dbp)->mutexp, -1);
-/* Btree/recno local statistics structure. */
-struct __db_bt_lstat; typedef struct __db_bt_lstat DB_BTREE_LSTAT;
-struct __db_bt_lstat {
- u_int32_t bt_freed; /* Pages freed for reuse. */
- u_int32_t bt_pfxsaved; /* Bytes saved by prefix compression. */
- u_int32_t bt_split; /* Total number of splits. */
- u_int32_t bt_rootsplit; /* Root page splits. */
- u_int32_t bt_fastsplit; /* Fast splits. */
- u_int32_t bt_added; /* Items added. */
- u_int32_t bt_deleted; /* Items deleted. */
- u_int32_t bt_get; /* Items retrieved. */
- u_int32_t bt_cache_hit; /* Hits in fast-insert code. */
- u_int32_t bt_cache_miss; /* Misses in fast-insert code. */
-};
-
/*******************************************************
* Environment.
*******************************************************/
@@ -250,6 +218,7 @@ typedef struct _rlayout {
int majver; /* Major version number. */
int minver; /* Minor version number. */
int patch; /* Patch version number. */
+ int panic; /* Region is dead. */
#define INVALID_SEGID -1
int segid; /* shmget(2) ID, or Win16 segment ID. */
@@ -262,9 +231,9 @@ typedef struct _rlayout {
* we don't make the underlying VM unhappy.
*/
#define DB_VMPAGESIZE (4 * 1024)
-#define DB_ROUNDOFF(i) { \
- (i) += DB_VMPAGESIZE - 1; \
- (i) -= (i) % DB_VMPAGESIZE; \
+#define DB_ROUNDOFF(n, round) { \
+ (n) += (round) - 1; \
+ (n) -= (n) % (round); \
}
/*
@@ -292,6 +261,7 @@ struct __db_reginfo {
and mmap(2) is being used to map it
into our address space. */
int segid; /* shmget(2) ID, or Win16 segment ID. */
+ void *wnt_handle; /* Win/NT HANDLE. */
/* Shared flags. */
/* 0x0001 COMMON MASK with RLAYOUT structure. */
@@ -334,8 +304,8 @@ typedef struct __dbpginfo {
#define IS_ZERO_LSN(LSN) ((LSN).file == 0)
/* Test if we need to log a change. */
-#define DB_LOGGING(dbp) \
- (F_ISSET(dbp, DB_AM_LOGGING) && !F_ISSET(dbp, DB_AM_RECOVER))
+#define DB_LOGGING(dbc) \
+ (F_ISSET((dbc)->dbp, DB_AM_LOGGING) && !F_ISSET(dbc, DBC_RECOVER))
#ifdef DIAGNOSTIC
/*
@@ -350,30 +320,30 @@ typedef struct __dbpginfo {
* A data
* F flags
*/
-#define LOG_OP(D, T, O, K, A, F) { \
+#define LOG_OP(C, T, O, K, A, F) { \
DB_LSN _lsn; \
DBT _op; \
- if (DB_LOGGING((D))) { \
+ if (DB_LOGGING((C))) { \
memset(&_op, 0, sizeof(_op)); \
_op.data = O; \
_op.size = strlen(O) + 1; \
- (void)__db_debug_log((D)->dbenv->lg_info, \
- T, &_lsn, 0, &_op, (D)->log_fileid, K, A, F); \
+ (void)__db_debug_log((C)->dbp->dbenv->lg_info, \
+ T, &_lsn, 0, &_op, (C)->dbp->log_fileid, K, A, F); \
} \
}
#ifdef DEBUG_ROP
-#define DEBUG_LREAD(D, T, O, K, A, F) LOG_OP(D, T, O, K, A, F)
+#define DEBUG_LREAD(C, T, O, K, A, F) LOG_OP(C, T, O, K, A, F)
#else
-#define DEBUG_LREAD(D, T, O, K, A, F)
+#define DEBUG_LREAD(C, T, O, K, A, F)
#endif
#ifdef DEBUG_WOP
-#define DEBUG_LWRITE(D, T, O, K, A, F) LOG_OP(D, T, O, K, A, F)
+#define DEBUG_LWRITE(C, T, O, K, A, F) LOG_OP(C, T, O, K, A, F)
#else
-#define DEBUG_LWRITE(D, T, O, K, A, F)
+#define DEBUG_LWRITE(C, T, O, K, A, F)
#endif
#else
-#define DEBUG_LREAD(D, T, O, K, A, F)
-#define DEBUG_LWRITE(D, T, O, K, A, F)
+#define DEBUG_LREAD(C, T, O, K, A, F)
+#define DEBUG_LWRITE(C, T, O, K, A, F)
#endif /* DIAGNOSTIC */
/*******************************************************
@@ -393,10 +363,45 @@ struct __db_txn {
DB_LSN last_lsn; /* Lsn of last log write. */
u_int32_t txnid; /* Unique transaction id. */
size_t off; /* Detail structure within region. */
- TAILQ_ENTRY(__db_txn) links;
+ TAILQ_ENTRY(__db_txn) links; /* Links transactions off manager. */
+ TAILQ_HEAD(__kids, __db_txn) kids; /* Child transactions. */
+ TAILQ_ENTRY(__db_txn) klinks; /* Links child transactions. */
+
+#define TXN_MALLOC 0x01 /* Structure allocated by TXN system. */
+ u_int32_t flags;
+};
+
+/*******************************************************
+ * Global variables.
+ *******************************************************/
+/*
+ * !!!
+ * Initialized in os/os_config.c, don't change this unless you change it
+ * as well.
+ */
+
+struct __rmname {
+ char *dbhome;
+ int rmid;
+ TAILQ_ENTRY(__rmname) links;
};
-#include "os_func.h"
+typedef struct __db_globals {
+ int db_mutexlocks; /* DB_MUTEXLOCKS */
+ int db_pageyield; /* DB_PAGEYIELD */
+ int db_region_anon; /* DB_REGION_ANON, DB_REGION_NAME */
+ int db_region_init; /* DB_REGION_INIT */
+ int db_tsl_spins; /* DB_TSL_SPINS */
+ /* XA: list of opened environments. */
+ TAILQ_HEAD(__db_envq, __db_env) db_envq;
+ /* XA: list of id to dbhome mappings. */
+ TAILQ_HEAD(__db_nameq, __rmname) db_nameq;
+} DB_GLOBALS;
+
+extern DB_GLOBALS __db_global_values;
+#define DB_GLOBAL(v) __db_global_values.v
+
+#include "os.h"
#include "os_ext.h"
#endif /* !_DB_INTERNAL_H_ */
generated by cgit v1.2.3 (git 2.25.1) at 2024-08-13 23:42:35 +0000