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[llm] Route generate_from_pos() JNI API to native llm runner API #11952

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[llm] Route generate_from_pos() JNI API to native llm runner API #11952

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30 changes: 21 additions & 9 deletions extension/android/jni/jni_layer_llama.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -297,16 +297,28 @@ class ExecuTorchLlmJni : public facebook::jni::HybridClass<ExecuTorchLlmJni> {
jlong start_pos,
facebook::jni::alias_ref<ExecuTorchLlmCallbackJni> callback,
jboolean echo) {
if (model_type_category_ != MODEL_TYPE_CATEGORY_MULTIMODAL) {
return static_cast<jint>(Error::NotSupported);
if (model_type_category_ == MODEL_TYPE_CATEGORY_MULTIMODAL) {

return static_cast<jint>(multi_modal_runner_->generate_from_pos(
prompt->toStdString(),
seq_len,
start_pos,
[callback](const std::string& result) { callback->onResult(result); },
[callback](const llm::Stats& stats) { callback->onStats(stats); },
echo));
} else if (model_type_category_ == MODEL_TYPE_CATEGORY_LLM) {
executorch::extension::llm::GenerationConfig config{
.echo = static_cast<bool>(echo),
.seq_len = seq_len,
.temperature = temperature_,
};
runner_->generate_from_pos(
prompt->toStdString(),
start_pos,
config,
[callback](std::string result) { callback->onResult(result); },
[callback](const llm::Stats& stats) { callback->onStats(stats); });
}
return static_cast<jint>(multi_modal_runner_->generate_from_pos(
prompt->toStdString(),
seq_len,
start_pos,
[callback](const std::string& result) { callback->onResult(result); },
[callback](const llm::Stats& stats) { callback->onStats(stats); },
echo));
}

void stop() {
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