static ObjectArray* listClasses(Env* env, Class* instanceofClazz, ClassLoader* classLoader, void* hash) {
if (instanceofClazz && (CLASS_IS_ARRAY(instanceofClazz) || CLASS_IS_PRIMITIVE(instanceofClazz))) {
return NULL;
}
ClassInfoHeader** base = getClassInfosBase(hash);
uint32_t count = getClassInfosCount(hash);
uint32_t i = 0;
jint matches = count;
TypeInfo* instanceofTypeInfo = instanceofClazz ? instanceofClazz->typeInfo : NULL;
if (instanceofTypeInfo) {
matches = 0;
for (i = 0; i < count; i++) {
ClassInfoHeader* header = base[i];
if ((header->flags & CI_ERROR) == 0) {
if ((!CLASS_IS_INTERFACE(instanceofClazz)
&& rvmIsClassTypeInfoAssignable(env, header->typeInfo, instanceofTypeInfo))
|| (CLASS_IS_INTERFACE(instanceofClazz)
&& rvmIsInterfaceTypeInfoAssignable(env, header->typeInfo, instanceofTypeInfo))) {
matches++;
}
}
}
}
if (matches == 0) return NULL;
ObjectArray* result = rvmNewObjectArray(env, matches, java_lang_Class, NULL, NULL);
if (!result) return NULL;
jint j = 0;
for (i = 0; i < count; i++) {
ClassInfoHeader* header = base[i];
if ((header->flags & CI_ERROR) == 0) {
if (!instanceofTypeInfo || ((!CLASS_IS_INTERFACE(instanceofClazz)
&& rvmIsClassTypeInfoAssignable(env, header->typeInfo, instanceofTypeInfo))
|| (CLASS_IS_INTERFACE(instanceofClazz)
&& rvmIsInterfaceTypeInfoAssignable(env, header->typeInfo, instanceofTypeInfo)))) {
result->values[j++] = (Object*) (header->clazz ? header->clazz : createClass(env, header, classLoader));
if (rvmExceptionOccurred(env)) return NULL;
}
}
}
return result;
}
static ClassInfoHeader* lookupClassInfo(Env* env, const char* className, void* hash) {
ClassInfoHeader** base = getClassInfosBase(hash);
jint h = 0;
MurmurHash3_x86_32(className, strlen(className) + 1, 0x1ce79e5c, &h);
hash += sizeof(jint); // Skip count
jint size = ((jshort*) hash)[0];
h &= size - 1;
jint start = ((jshort*) hash)[h + 1];
jint end = ((jshort*) hash)[h + 1 + 1];
jint i;
for (i = start; i < end; i++) {
ClassInfoHeader* header = base[i];
if (header && !strcmp(header->className, className)) {
return header;
}
}
return NULL;
}
static void iterateClassInfos(Env* env, jboolean (*callback)(Env*, ClassInfoHeader*, MethodInfo*, void*), void* hash, void* data) {
ClassInfoHeader** base = getClassInfosBase(hash);
jint count = getClassInfosCount(hash);
jint i = 0;
for (i = 0; i < count; i++) {
ClassInfo ci;
void* p = base[i];
readClassInfo(&p, &ci);
skipInterfaceNames(&p, &ci);
skipFieldInfos(&p, &ci);
jint j;
for (j = 0; j < ci.methodCount; j++) {
MethodInfo mi;
readMethodInfo(&p, &mi);
if (!callback(env, base[i], &mi, data)) {
break;
}
}
}
}
static ClassInfoHeader* lookupClassInfo(Env* env, const char* className, void* hash) {
ClassInfoHeader** base = getClassInfosBase(hash);
// Hash the class name
uint32_t h = 0;
MurmurHash3_x86_32(className, strlen(className) + 1, 0x1ce79e5c, &h);
uint32_t size = ((uint32_t*) hash)[1];
h &= size - 1;
// Get the start and end indexes
hash += sizeof(uint32_t) + sizeof(uint32_t); // Skip count and size
uint32_t start = ((uint32_t*) hash)[h];
uint32_t end = ((uint32_t*) hash)[h + 1];
// Iterate through the ClassInfoHeaders between start and end
for (uint32_t i = start; i < end; i++) {
ClassInfoHeader* header = base[i];
if (header && !strcmp(header->className, className)) {
return header;
}
}
return NULL;
}
