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/*-
* See the file LICENSE for redistribution information.
*
* Copyright (c) 1997, 1998
* Sleepycat Software. All rights reserved.
*/
#include "config.h"
#ifndef lint
static const char sccsid[] = "@(#)java_DbLog.cpp 10.7 (Sleepycat) 10/24/98";
#endif /* not lint */
#include <jni.h>
#include <errno.h>
#include <stdlib.h>
#include <string.h>
#include <stdio.h> // needed for FILENAME_MAX
#include "db.h"
#include "java_util.h"
#include "com_sleepycat_db_DbLog.h"
JNIEXPORT jobjectArray JNICALL Java_com_sleepycat_db_DbLog_archive
(JNIEnv *jnienv, /*DbLog*/ jobject jthis, jint flags)
{
int err;
char** ret;
DB_LOG *dblog = get_DB_LOG(jnienv, jthis);
if (!verify_non_null(jnienv, dblog))
return 0;
err = log_archive(dblog, &ret, flags, 0);
if (!verify_return(jnienv, err))
return 0;
int len = 0;
while (ret[len] != NULL)
len++;
jclass stringClass = jnienv->FindClass("java/lang/String");
jobjectArray strarray = jnienv->NewObjectArray(len, stringClass, 0);
for (int i=0; i<len; i++) {
jstring str = jnienv->NewStringUTF(ret[i]);
jnienv->SetObjectArrayElement(strarray, i, str);
}
return strarray;
}
JNIEXPORT void JNICALL Java_com_sleepycat_db_DbLog_close
(JNIEnv *jnienv, /*DbLog*/ jobject jthis)
{
int err;
DB_LOG *dblog = get_DB_LOG(jnienv, jthis);
if (!verify_non_null(jnienv, dblog))
return;
err = log_close(dblog);
if (verify_return(jnienv, err))
{
set_private_info(jnienv, name_DB_LOG, jthis, 0);
}
}
JNIEXPORT jint JNICALL Java_com_sleepycat_db_DbLog_compare
(JNIEnv *jnienv, jclass jthis_class,
/*DbLsn*/ jobject lsn0, /*DbLsn*/ jobject lsn1)
{
DB_LSN *dblsn0 = get_DB_LSN(jnienv, lsn0);
DB_LSN *dblsn1 = get_DB_LSN(jnienv, lsn1);
return log_compare(dblsn0, dblsn1);
}
JNIEXPORT jstring JNICALL Java_com_sleepycat_db_DbLog_file
(JNIEnv *jnienv, jobject jthis, /*DbLsn*/ jobject lsn)
{
int err;
DB_LOG *dblog = get_DB_LOG(jnienv, jthis);
DB_LSN *dblsn = get_DB_LSN(jnienv, lsn);
char filename[FILENAME_MAX+1] = "";
err = log_file(dblog, dblsn, filename, FILENAME_MAX);
verify_return(jnienv, err);
filename[FILENAME_MAX] = '\0'; // just to be sure
return get_java_string(jnienv, filename);
}
JNIEXPORT void JNICALL Java_com_sleepycat_db_DbLog_flush
(JNIEnv *jnienv, jobject jthis, /*DbLsn*/ jobject lsn)
{
int err;
DB_LOG *dblog = get_DB_LOG(jnienv, jthis);
DB_LSN *dblsn = get_DB_LSN(jnienv, lsn);
err = log_flush(dblog, dblsn);
verify_return(jnienv, err);
}
JNIEXPORT void JNICALL Java_com_sleepycat_db_DbLog_get
(JNIEnv *jnienv, jobject jthis, /*DbLsn*/ jobject lsn,
/*DbDbt*/ jobject data, jint flags)
{
int err;
DB_LOG *dblog = get_DB_LOG(jnienv, jthis);
DB_LSN *dblsn = get_DB_LSN(jnienv, lsn);
LockedDBT dbdata(jnienv, data, outOp);
if (dbdata.has_error())
return;
err = log_get(dblog, dblsn, dbdata.dbt, flags);
verify_return(jnienv, err);
}
JNIEXPORT void JNICALL Java_com_sleepycat_db_DbLog_put
(JNIEnv *jnienv, jobject jthis, /*DbLsn*/ jobject lsn,
/*DbDbt*/ jobject data, jint flags)
{
int err;
DB_LOG *dblog = get_DB_LOG(jnienv, jthis);
DB_LSN *dblsn = get_DB_LSN(jnienv, lsn);
LockedDBT dbdata(jnienv, data, inOp);
if (dbdata.has_error())
return;
err = log_put(dblog, dblsn, dbdata.dbt, flags);
verify_return(jnienv, err);
}
JNIEXPORT jint JNICALL Java_com_sleepycat_db_DbLog_db_1register
(JNIEnv *jnienv, jobject jthis, /*Db*/ jobject dbp,
jstring name, jint dbtype)
{
int err;
DB_LOG *dblog = get_DB_LOG(jnienv, jthis);
DB *dbdb = get_DB(jnienv, dbp);
LockedString dbname(jnienv, name);
u_int32_t result;
err = log_register(dblog, dbdb, dbname.string, (DBTYPE)dbtype, &result);
verify_return(jnienv, err);
return result;
}
JNIEXPORT void JNICALL Java_com_sleepycat_db_DbLog_db_1unregister
(JNIEnv *jnienv, jobject jthis, jint fid)
{
int err;
DB_LOG *dblog = get_DB_LOG(jnienv, jthis);
err = log_unregister(dblog, fid);
verify_return(jnienv, err);
}
JNIEXPORT jobject JNICALL Java_com_sleepycat_db_DbLog_stat
(JNIEnv *jnienv, jobject jthis)
{
int err;
DB_LOG *dblog = get_DB_LOG(jnienv, jthis);
DB_LOG_STAT *statp = NULL;
jobject retval = NULL;
if (!verify_non_null(jnienv, dblog))
return NULL;
// We cannot use the default allocator (on Win* platforms anyway)
// because it often causes problems when we free storage
// in a DLL that was allocated in another DLL. Using
// our own allocator (ours just calls malloc!) ensures
// that there is no mismatch.
//
err = log_stat(dblog, &statp, allocMemory);
if (verify_return(jnienv, err)) {
retval = create_default_object(jnienv, name_DB_LOG_STAT);
jclass dbclass = get_class(jnienv, name_DB_LOG_STAT);
// Set the individual fields
set_int_field(jnienv, dbclass, retval,
"st_magic", statp->st_magic);
set_int_field(jnienv, dbclass, retval,
"st_version", statp->st_version);
set_int_field(jnienv, dbclass, retval,
"st_mode", statp->st_mode);
set_int_field(jnienv, dbclass, retval,
"st_lg_max", statp->st_lg_max);
set_int_field(jnienv, dbclass, retval,
"st_w_bytes", statp->st_w_bytes);
set_int_field(jnienv, dbclass, retval,
"st_w_mbytes", statp->st_w_mbytes);
set_int_field(jnienv, dbclass, retval,
"st_wc_bytes", statp->st_wc_bytes);
set_int_field(jnienv, dbclass, retval,
"st_wc_mbytes", statp->st_wc_mbytes);
set_int_field(jnienv, dbclass, retval,
"st_wcount", statp->st_wcount);
set_int_field(jnienv, dbclass, retval,
"st_scount", statp->st_scount);
set_int_field(jnienv, dbclass, retval,
"st_region_wait", statp->st_region_wait);
set_int_field(jnienv, dbclass, retval,
"st_region_nowait", statp->st_region_nowait);
set_int_field(jnienv, dbclass, retval,
"st_cur_file", statp->st_cur_file);
set_int_field(jnienv, dbclass, retval,
"st_cur_offset", statp->st_cur_offset);
set_int_field(jnienv, dbclass, retval,
"st_refcnt", statp->st_refcnt);
set_int_field(jnienv, dbclass, retval,
"st_regsize", statp->st_regsize);
freeMemory(statp);
}
return retval;
}
JNIEXPORT /*DbLog*/ jobject JNICALL Java_com_sleepycat_db_DbLog_open
(JNIEnv *jnienv, jclass jthis_class, jstring dir, jint flags,
jint mode, /*DbEnv*/ jobject dbenv)
{
int err;
jobject retval = NULL;
DB_LOG *dblog;
DB_ENV *db_dbenv = get_DB_ENV(jnienv, dbenv);
LockedString dbdir(jnienv, dir);
if (verify_non_null(jnienv, db_dbenv)) {
err = log_open(dbdir.string, flags, mode,
db_dbenv, &dblog);
if (verify_return(jnienv, err)) {
retval = create_default_object(jnienv, name_DB_LOG);
set_private_info(jnienv, name_DB_LOG, retval, dblog);
}
}
return retval;
}
JNIEXPORT void JNICALL Java_com_sleepycat_db_DbLog_unlink
(JNIEnv *jnienv, jclass jthis_class, jstring dir, jint force,
/*DbEnv*/ jobject dbenv)
{
int err;
DB_ENV *db_dbenv = get_DB_ENV(jnienv, dbenv);
LockedString dbdir(jnienv, dir);
if (verify_non_null(jnienv, db_dbenv)) {
err = log_unlink(dbdir.string, force, db_dbenv);
verify_return(jnienv, err);
}
}
JNIEXPORT void JNICALL Java_com_sleepycat_db_DbLog_finalize
(JNIEnv *jnienv, jobject jthis)
{
DB_LOG *dblog = get_DB_LOG(jnienv, jthis);
if (dblog) {
// Free any data related to DB_LOG here
}
}
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