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Consolidate triplicated xDestroy()-calling code. Remove some unnecessary casts.

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FossilOrigin-Name: 24c0763d0e025187c74002ffee11fd48d3cd7b40e01469d28484bb67f701884b
This commit is contained in:
stephan
2023-07-31 07:15:25 +00:00
parent 09947d0aad
commit 9c1c6da930
3 changed files with 49 additions and 52 deletions
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87
ext/jni/src/c/sqlite3-jni.c
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@ -454,17 +454,22 @@ static int s3jni_db_error(sqlite3*db, int err_code, const char *zMsg){
}
/**
Clears s's state, releasing any Java references. Before doing so,
it calls s's xDestroy() method, ignoring the lack of that method or
any exceptions it throws. This is a no-op of s has no current
state.
Extracts the (void xDestroy()) method from the given jclass and
applies it to jobj. If jobs is NULL, this is a no-op. If klazz is
NULL then it's derived from jobj. The lack of an xDestroy() method
is silently ignored and any exceptions thrown by the method trigger
a warning to stdout or stderr and then the exception is suppressed.
*/
static void BusyHandlerJni_clear(JNIEnv *env, BusyHandlerJni * const s){
if(s->base.jObj){
const jmethodID method =
(*env)->GetMethodID(env, s->klazz, "xDestroy", "()V");
static void s3jni_call_xDestroy(JNIEnv *env, jobject jobj, jclass klazz){
if(jobj){
jmethodID method;
if(!klazz){
klazz = (*env)->GetObjectClass(env, jobj);
assert(klazz);
}
method = (*env)->GetMethodID(env, klazz, "xDestroy", "()V");
if(method){
(*env)->CallVoidMethod(env, s->base.jObj, method);
(*env)->CallVoidMethod(env, jobj, method);
IFTHREW{
EXCEPTION_WARN_CALLBACK_THREW;
EXCEPTION_CLEAR;
@ -472,6 +477,19 @@ static void BusyHandlerJni_clear(JNIEnv *env, BusyHandlerJni * const s){
}else{
EXCEPTION_CLEAR;
}
}
}
/**
Clears s's state, releasing any Java references. Before doing so,
it calls s's xDestroy() method, ignoring the lack of that method or
any exceptions it throws. This is a no-op of s has no current
state.
*/
static void BusyHandlerJni_clear(JNIEnv *env, BusyHandlerJni * const s){
if(s->base.jObj){
s3jni_call_xDestroy(env, s->base.jObj, s->klazz);
UNREF_G(s->base.jObj);
UNREF_G(s->klazz);
memset(s, 0, sizeof(BusyHandlerJni));
@ -909,19 +927,19 @@ static CollationState * CollationState_alloc(void){
return rc;
}
static void CollationState_free(CollationState * cs){
static void CollationState_free(CollationState * const cs){
JNIEnv * const env = cs->env;
if(env){
//MARKER(("Collation cleanup...\n"));
if(cs->oCollation) UNREF_G(cs->oCollation);
if(cs->klazz) UNREF_G(cs->klazz);
UNREF_G(cs->oCollation);
UNREF_G(cs->klazz);
}
sqlite3_free(cs);
}
static int collation_xCompare_proxy(void *pArg, int nLhs, const void *lhs,
int nRhs, const void *rhs){
CollationState * const cs = (CollationState*)pArg;
static int CollationState_xCompare(void *pArg, int nLhs, const void *lhs,
int nRhs, const void *rhs){
CollationState * const cs = pArg;
JNIEnv * env = cs->env;
jint rc;
jbyteArray jbaLhs = (*env)->NewByteArray(env, (jint)nLhs);
@ -937,20 +955,10 @@ static int collation_xCompare_proxy(void *pArg, int nLhs, const void *lhs,
return (int)rc;
}
static void collation_xDestroy_proxy(void *pArg){
CollationState * const cs = (CollationState*)pArg;
if(cs->oCollation){
JNIEnv * const env = cs->env;
const jmethodID method = (*env)->GetMethodID(env, cs->klazz, "xDestroy",
"()V");
//MARKER(("Calling Collation.xDestroy()...\n"));
(*env)->CallVoidMethod(env, cs->oCollation, method);
IFTHREW {
EXCEPTION_WARN_CALLBACK_THREW;
EXCEPTION_CLEAR;
}
//MARKER(("Returned from Collation.xDestroy().\n"));
}
/* Collation finalizer for use by the sqlite3 internals. */
static void CollationState_xDestroy(void *pArg){
CollationState * const cs = pArg;
s3jni_call_xDestroy(cs->env, cs->oCollation, cs->klazz);
CollationState_free(cs);
}
@ -1132,19 +1140,8 @@ static UDFState * UDFState_alloc(JNIEnv *env, jobject jObj){
static void UDFState_free(UDFState * s){
JNIEnv * const env = s->env;
if(env){
//MARKER(("Collation cleanup...\n"));
if(s->jObj){
const jmethodID method =
(*env)->GetMethodID(env, s->klazz, "xDestroy", "()V");
if(method){
//MARKER(("aCalling SQLFunction.xDestroy()...\n"));
(*env)->CallVoidMethod(env, s->jObj, method);
EXCEPTION_IGNORE;
//MARKER(("Returned from SQLFunction.xDestroy().\n"));
}else{
(*env)->ExceptionClear(env);
}
}
//MARKER(("UDF cleanup...\n"));
s3jni_call_xDestroy(env, s->jObj, s->klazz);
UNREF_G(s->jObj);
UNREF_G(s->klazz);
}
@ -1734,10 +1731,10 @@ JDECL(jint,1create_1collation)(JENV_JSELF, jobject jpDb,
"([B[B)I");
zName = JSTR_TOC(name);
rc = sqlite3_create_collation_v2(PtrGet_sqlite3(jpDb), zName, (int)eTextRep,
cs, collation_xCompare_proxy,
collation_xDestroy_proxy);
cs, CollationState_xCompare,
CollationState_xDestroy);
JSTR_RELEASE(name, zName);
if(0 != rc) collation_xDestroy_proxy(cs);
if(0 != rc) CollationState_xDestroy(cs);
return (jint)rc;
}