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/*-
* See the file LICENSE for redistribution information.
*
* Copyright (c) 1997-2001
* Sleepycat Software. All rights reserved.
*/
#include "db_config.h"
#ifndef lint
static const char revid[] = "$Id: java_DbXAResource.c,v 11.6 2002/08/06 05:19:06 bostic Exp $";
#endif /* not lint */
#include <jni.h>
#include <errno.h>
#include <stdlib.h>
#include <string.h>
#ifdef DIAGNOSTIC
#include <stdio.h>
#endif
#include "db_int.h"
#include "java_util.h"
#include "dbinc/xa.h"
#include "dbinc_auto/xa_ext.h"
#include "com_sleepycat_db_xa_DbXAResource.h"
JNIEXPORT void JNICALL Java_com_sleepycat_db_xa_DbXAResource__1init
(JNIEnv *jnienv, jobject jthis, jstring home, jint rmid, jint flags)
{
int err;
LOCKED_STRING ls_home;
jclass cl;
jmethodID mid;
COMPQUIET(jthis, NULL);
if (locked_string_get(&ls_home, jnienv, home) != 0)
goto out;
if ((err = __db_xa_open((char *)ls_home.string,
rmid, flags)) != XA_OK) {
verify_return(jnienv, err, EXCEPTION_XA);
}
/*
* Now create the DbEnv object, it will get attached
* to the DB_ENV just made in __db_xa_open.
*/
if ((cl = get_class(jnienv, name_DB_ENV)) == NULL)
goto out;
mid = (*jnienv)->GetStaticMethodID(jnienv, cl,
"_create_DbEnv_for_XA", "(II)V");
(*jnienv)->CallStaticVoidMethod(jnienv, cl, mid, 0, rmid);
out:
locked_string_put(&ls_home, jnienv);
}
JNIEXPORT void JNICALL Java_com_sleepycat_db_xa_DbXAResource__1close
(JNIEnv *jnienv, jobject jthis, jstring home, jint rmid, jint flags)
{
int err;
LOCKED_STRING ls_home;
COMPQUIET(jthis, NULL);
if (locked_string_get(&ls_home, jnienv, home) != 0)
goto out;
if ((err = __db_xa_close((char *)ls_home.string,
rmid, flags)) != XA_OK)
verify_return(jnienv, err, EXCEPTION_XA);
out:
locked_string_put(&ls_home, jnienv);
}
JNIEXPORT void JNICALL Java_com_sleepycat_db_xa_DbXAResource__1commit
(JNIEnv *jnienv, jobject jthis, jobject jxid, jint rmid,
jboolean onePhase)
{
XID xid;
long flags;
int err;
COMPQUIET(jthis, NULL);
if (!get_XID(jnienv, jxid, &xid))
return;
flags = 0;
if (onePhase == JNI_TRUE)
flags |= TMONEPHASE;
if ((err = __db_xa_commit(&xid, rmid, flags)) != XA_OK)
verify_return(jnienv, err, EXCEPTION_XA);
}
JNIEXPORT void JNICALL Java_com_sleepycat_db_xa_DbXAResource__1end
(JNIEnv *jnienv, jobject jthis, jobject jxid, jint rmid, jint flags)
{
XID xid;
int err;
COMPQUIET(jthis, NULL);
if (!get_XID(jnienv, jxid, &xid))
return;
if ((err = __db_xa_end(&xid, rmid, flags)) != XA_OK)
verify_return(jnienv, err, EXCEPTION_XA);
}
JNIEXPORT void JNICALL Java_com_sleepycat_db_xa_DbXAResource__1forget
(JNIEnv *jnienv, jobject jthis, jobject jxid, jint rmid)
{
XID xid;
int err;
COMPQUIET(jthis, NULL);
if (!get_XID(jnienv, jxid, &xid))
return;
if ((err = __db_xa_forget(&xid, rmid, 0)) != XA_OK)
verify_return(jnienv, err, EXCEPTION_XA);
}
JNIEXPORT jint JNICALL Java_com_sleepycat_db_xa_DbXAResource__1prepare
(JNIEnv *jnienv, jobject jthis, jobject jxid, jint rmid)
{
XID xid;
int err;
COMPQUIET(jthis, NULL);
if (!get_XID(jnienv, jxid, &xid))
return (0);
err = __db_xa_prepare(&xid, rmid, 0);
if (err != XA_OK && err != XA_RDONLY)
verify_return(jnienv, err, EXCEPTION_XA);
return (err);
}
JNIEXPORT jobjectArray JNICALL Java_com_sleepycat_db_xa_DbXAResource__1recover
(JNIEnv *jnienv, jobject jthis, jint rmid, jint flags)
{
XID *xids;
int err;
int total;
int cnt;
int i;
int curflags;
size_t nbytes;
jclass xid_class;
jmethodID mid;
jobject obj;
jobjectArray retval;
COMPQUIET(jthis, NULL);
total = 0;
cnt = 0;
xids = NULL;
flags &= ~(DB_FIRST | DB_LAST | DB_NEXT);
/* Repeatedly call __db_xa_recover to fill up an array of XIDs */
curflags = flags | DB_FIRST;
do {
total += cnt;
nbytes = sizeof(XID) * (total + 10);
if ((err = __os_realloc(NULL, nbytes, &xids)) != 0) {
if (xids != NULL)
__os_free(NULL, xids);
verify_return(jnienv, XAER_NOTA, EXCEPTION_XA);
return (NULL);
}
cnt = __db_xa_recover(&xids[total], 10, rmid, curflags);
curflags = flags | DB_NEXT;
} while (cnt > 0);
if (xids != NULL)
__os_free(NULL, xids);
if (cnt < 0) {
verify_return(jnienv, cnt, EXCEPTION_XA);
return (NULL);
}
/* Create the java DbXid array and fill it up */
if ((xid_class = get_class(jnienv, name_DB_XID)) == NULL)
return (NULL);
mid = (*jnienv)->GetMethodID(jnienv, xid_class, "<init>",
"(I[B[B)V");
if ((retval = (*jnienv)->NewObjectArray(jnienv, total, xid_class, 0))
== NULL)
goto out;
for (i = 0; i < total; i++) {
jobject gtrid;
jobject bqual;
jsize gtrid_len;
jsize bqual_len;
gtrid_len = (jsize)xids[i].gtrid_length;
bqual_len = (jsize)xids[i].bqual_length;
gtrid = (*jnienv)->NewByteArray(jnienv, gtrid_len);
bqual = (*jnienv)->NewByteArray(jnienv, bqual_len);
if (gtrid == NULL || bqual == NULL)
goto out;
(*jnienv)->SetByteArrayRegion(jnienv, gtrid, 0, gtrid_len,
(jbyte *)&xids[i].data[0]);
(*jnienv)->SetByteArrayRegion(jnienv, bqual, 0, bqual_len,
(jbyte *)&xids[i].data[gtrid_len]);
if ((obj = (*jnienv)->NewObject(jnienv, xid_class, mid,
(jint)xids[i].formatID, gtrid, bqual)) == NULL)
goto out;
(*jnienv)->SetObjectArrayElement(jnienv, retval, i, obj);
}
out: return (retval);
}
JNIEXPORT void JNICALL Java_com_sleepycat_db_xa_DbXAResource__1rollback
(JNIEnv *jnienv, jobject jthis, jobject jxid, jint rmid)
{
XID xid;
int err;
COMPQUIET(jthis, NULL);
if (!get_XID(jnienv, jxid, &xid))
return;
if ((err = __db_xa_rollback(&xid, rmid, 0)) != XA_OK)
verify_return(jnienv, err, EXCEPTION_XA);
}
JNIEXPORT void JNICALL Java_com_sleepycat_db_xa_DbXAResource__1start
(JNIEnv *jnienv, jobject jthis, jobject jxid, jint rmid, jint flags)
{
XID xid;
int err;
COMPQUIET(jthis, NULL);
if (!get_XID(jnienv, jxid, &xid))
return;
if ((err = __db_xa_start(&xid, rmid, flags)) != XA_OK)
verify_return(jnienv, err, EXCEPTION_XA);
}
JNIEXPORT jobject JNICALL Java_com_sleepycat_db_xa_DbXAResource_xa_1attach
(JNIEnv *jnienv, jclass jthisclass, jobject jxid, jobject jrmid)
{
XID xid;
XID *xidp;
int ret;
DB_ENV *env;
DB_TXN *txn;
int rmid;
int *rmidp;
jobject jtxn;
jobject jenv;
jclass cl;
jmethodID mid;
COMPQUIET(jthisclass, NULL);
if (jxid == NULL) {
xidp = NULL;
}
else {
xidp = &xid;
if (!get_XID(jnienv, jxid, &xid))
return (NULL);
}
if (jrmid == NULL) {
rmidp = NULL;
}
else {
rmidp = &rmid;
rmid = (int)(*jnienv)->CallIntMethod(jnienv, jrmid,
mid_Integer_intValue);
}
if ((ret = db_env_xa_attach(rmidp, xidp, &env, &txn)) != 0) {
/*
* DB_NOTFOUND is a normal return, it means we
* have no current transaction,
*/
if (ret != DB_NOTFOUND)
verify_return(jnienv, ret, 0);
return (NULL);
}
jenv = ((DB_ENV_JAVAINFO *)env->api2_internal)->jenvref;
jtxn = get_DbTxn(jnienv, txn);
if ((cl = get_class(jnienv, name_DB_XAATTACH)) == NULL)
return (NULL);
mid = (*jnienv)->GetMethodID(jnienv, cl, "<init>",
"(Lcom/sleepycat/db/DbEnv;Lcom/sleepycat/db/DbTxn;)V");
return (*jnienv)->NewObject(jnienv, cl, mid, jenv, jtxn);
}
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