mirror of
https://github.com/ggml-org/llama.cpp.git
synced 2025-11-04 09:32:00 +00:00
Fix server.cpp code style according to review
This commit is contained in:
kir-gadjello
@@ -61,14 +61,14 @@ static bool server_verbose = false;
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#define LOG_WARNING(MSG, ...) server_log("WARNING", __func__, __LINE__, MSG, __VA_ARGS__)
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#define LOG_INFO( MSG, ...) server_log("INFO", __func__, __LINE__, MSG, __VA_ARGS__)
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json oaicompat_completion_params_parse(const json &body);
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std::string format_chatml(std::vector<json> messages);
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//
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// base64 utils (TODO: move to common in the future)
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//
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json oaicompat_completion_params_parse(
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const json &body);
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std::string format_chatml(std::vector<json> messages);
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static const std::string base64_chars =
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"ABCDEFGHIJKLMNOPQRSTUVWXYZ"
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"abcdefghijklmnopqrstuvwxyz"
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@@ -688,8 +688,7 @@ struct llama_server_context
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if (data.count("__oaicompat") != 0) {
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slot->oaicompat = true;
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slot->oaicompat_model =
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json_value(data, "model", std::string(DEFAULT_OAICOMPAT_MODEL));
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slot->oaicompat_model = json_value(data, "model", std::string(DEFAULT_OAICOMPAT_MODEL));
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} else {
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slot->oaicompat = false;
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slot->oaicompat_model = "";
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@@ -2209,246 +2208,232 @@ static void server_params_parse(int argc, char **argv, server_params &sparams,
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}
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static std::string random_string() {
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std::string str(
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"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz");
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static std::string random_string()
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{
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std::string str("0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz");
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std::random_device rd;
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std::mt19937 generator(rd());
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std::random_device rd;
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std::mt19937 generator(rd());
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std::shuffle(str.begin(), str.end(), generator);
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std::shuffle(str.begin(), str.end(), generator);
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return str.substr(0, 32); // assumes 32 < number of characters in str
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return str.substr(0, 32); // assumes 32 < number of characters in str
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}
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static std::string gen_chatcmplid() {
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std::stringstream chatcmplid;
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chatcmplid << "chatcmpl-" << random_string();
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return chatcmplid.str();
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static std::string gen_chatcmplid()
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{
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std::stringstream chatcmplid;
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chatcmplid << "chatcmpl-" << random_string();
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return chatcmplid.str();
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}
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std::string format_chatml(std::vector<json> messages) {
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std::string format_chatml(std::vector<json> messages)
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{
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std::ostringstream chatml_msgs;
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std::ostringstream chatml_msgs;
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for (auto it = messages.begin(); it != messages.end(); ++it) {
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chatml_msgs << "<|im_start|>"
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<< json_value(*it, "role", std::string("user")) << '\n';
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chatml_msgs << json_value(*it, "content", std::string(""))
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<< "<|im_end|>\n";
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}
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// iterate the array
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for (auto it = messages.begin(); it != messages.end(); ++it) {
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chatml_msgs << "<|im_start|>"
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<< json_value(*it, "role", std::string("user")) << '\n';
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chatml_msgs << json_value(*it, "content", std::string(""))
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<< "<|im_end|>\n";
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}
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chatml_msgs << "<|im_start|>assistant" << '\n';
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chatml_msgs << "<|im_start|>assistant" << '\n';
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return chatml_msgs.str();
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return chatml_msgs.str();
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}
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/* llama.cpp completion api semantics */
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json oaicompat_completion_params_parse(
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const json &body /* openai api json semantics */) {
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json llama_params;
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const json &body /* openai api json semantics */)
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{
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json llama_params;
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llama_params["__oaicompat"] = true;
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llama_params["__oaicompat"] = true;
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// Map OpenAI parameters to llama.cpp parameters
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llama_params["prompt"] = format_chatml(
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body["messages"]); // OpenAI 'messages' to llama.cpp 'prompt'
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llama_params["temperature"] =
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json_value(body, "temperature", 0.8); // Default to 0.8 if not provided
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llama_params["top_k"] =
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json_value(body, "max_tokens", 40); // Default to 40 if not provided
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llama_params["top_p"] =
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json_value(body, "top_p", 0.95); // Default to 0.95 if not provided
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llama_params["n_predict"] =
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json_value(body, "max_tokens", -1); // Default to -1 if not provided
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llama_params["logit_bias"] = json_value(
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body, "logit_bias",
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json::object()); // Default to empty object if not provided
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llama_params["frequency_penalty"] = json_value(
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body, "frequency_penalty", 0.0); // Default to 0.0 if not provided
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llama_params["presence_penalty"] = json_value(
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body, "presence_penalty", 0.0); // Default to 0.0 if not provided
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llama_params["seed"] = json_value(body, "seed", 0);
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llama_params["stream"] =
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json_value(body, "stream", false); // Default to 0 if not provided
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llama_params["mirostat"] =
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json_value(body, "mirostat", false); // Default to false if not provided
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llama_params["mirostat_tau"] =
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json_value(body, "mirostat_tau", 0.0); // Default to 0.0 if not provided
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llama_params["mirostat_eta"] =
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json_value(body, "mirostat_eta", 0.0); // Default to 0.0 if not provided
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llama_params["penalize_nl"] = json_value(
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body, "penalize_nl", false); // Default to false if not provided
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llama_params["typical_p"] =
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json_value(body, "typical_p", 0.0); // Default to 0.0 if not provided
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llama_params["repeat_last_n"] =
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json_value(body, "repeat_last_n", 0); // Default to 0 if not provided
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llama_params["ignore_eos"] =
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json_value(body, "ignore_eos", false); // Default to false if not provided
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llama_params["tfs_z"] =
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json_value(body, "tfs_z", 0.0); // Default to 0.0 if not provided
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if (llama_params.count("grammar") != 0) {
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llama_params["grammar"] = json_value(
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body, "grammar",
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json::object()); // Default to empty object if not provided
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}
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// Map OpenAI parameters to llama.cpp parameters
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llama_params["prompt"] = format_chatml(body["messages"]); // OpenAI 'messages' to llama.cpp 'prompt'
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llama_params["temperature"] = json_value(body, "temperature", 0.8);
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llama_params["top_k"] = json_value(body, "max_tokens", 40);
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llama_params["top_p"] = json_value(body, "top_p", 0.95);
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llama_params["n_predict"] = json_value(body, "max_tokens", -1);
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llama_params["logit_bias"] = json_value(body, "logit_bias",json::object());
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llama_params["frequency_penalty"] = json_value(body, "frequency_penalty", 0.0);
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llama_params["presence_penalty"] = json_value(body, "presence_penalty", 0.0);
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llama_params["seed"] = json_value(body, "seed", 0);
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llama_params["stream"] =json_value(body, "stream", false);
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llama_params["mirostat"] = json_value(body, "mirostat", false);
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llama_params["mirostat_tau"] = json_value(body, "mirostat_tau", 0.0);
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llama_params["mirostat_eta"] = json_value(body, "mirostat_eta", 0.0);
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llama_params["penalize_nl"] = json_value(body, "penalize_nl", false);
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llama_params["typical_p"] = json_value(body, "typical_p", 0.0);
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llama_params["repeat_last_n"] = json_value(body, "repeat_last_n", 0);
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llama_params["ignore_eos"] = json_value(body, "ignore_eos", false);
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llama_params["tfs_z"] = json_value(body, "tfs_z", 0.0);
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if (llama_params.count("grammar") != 0) {
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llama_params["grammar"] = json_value(
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body, "grammar",
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json::object());
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}
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// Handle 'stop' field
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if (body["stop"].is_null()) {
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llama_params["stop"] = json::array({});
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} else if (body["stop"].is_string()) {
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llama_params["stop"] = json::array({body["stop"].get<std::string>()});
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} else {
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llama_params["stop"] = json_value(
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body, "stop",
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json::array()); // Default to empty array if not provided
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}
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// Handle 'stop' field
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if (body["stop"].is_null()) {
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llama_params["stop"] = json::array({});
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} else if (body["stop"].is_string()) {
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llama_params["stop"] = json::array({body["stop"].get<std::string>()});
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} else {
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llama_params["stop"] = json_value(
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body, "stop",
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json::array());
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}
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// Ensure there is ChatML-specific end sequence among stop words
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llama_params["stop"].push_back("<|im_end|>");
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llama_params["stop"].push_back("<|im_end|>");
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return llama_params;
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return llama_params;
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}
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static json format_final_response_oaicompat(json request, task_result response,
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bool streaming = false) {
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bool streaming = false)
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{
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json result = response.result_json;
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json result = response.result_json;
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bool stopped_word = result.count("stopped_word") != 0;
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bool stopped_eos = json_value(result, "stopped_eos", false);
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int num_tokens_predicted = json_value(result, "tokens_predicted", 0);
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int num_prompt_tokens = json_value(result, "tokens_evaluated", 0);
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std::string content = json_value(result, "content", std::string(""));
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bool stopped_word = result.count("stopped_word") != 0;
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bool stopped_eos = json_value(result, "stopped_eos", false);
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int num_tokens_predicted = json_value(result, "tokens_predicted", 0);
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int num_prompt_tokens = json_value(result, "tokens_evaluated", 0);
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std::string content = json_value(result, "content", std::string(""));
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std::string finish_reason = "length";
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if (stopped_word || stopped_eos) {
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finish_reason = "stop";
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}
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std::string finish_reason = "length";
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if (stopped_word || stopped_eos) {
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finish_reason = "stop";
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}
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json choices =
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streaming ? json::array({json{{"finish_reason", finish_reason},
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{"index", 0},
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{"delta", json::object()}}})
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: json::array({json{{"finish_reason", finish_reason},
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{"index", 0},
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{"message", json{{"content", content},
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{"role", "assistant"}}}}});
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json choices =
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streaming ? json::array({json{{"finish_reason", finish_reason},
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{"index", 0},
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{"delta", json::object()}}})
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: json::array({json{{"finish_reason", finish_reason},
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{"index", 0},
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{"message", json{{"content", content},
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{"role", "assistant"}}}}});
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std::time_t t = std::time(0);
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std::time_t t = std::time(0);
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json res =
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json{{"choices", choices},
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{"created", t},
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{"model",
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json_value(request, "model", std::string(DEFAULT_OAICOMPAT_MODEL))},
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{"object", streaming ? "chat.completion.chunk" : "chat.completion"},
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{"usage",
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json{{"completion_tokens", num_tokens_predicted},
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{"prompt_tokens", num_prompt_tokens},
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{"total_tokens", num_tokens_predicted + num_prompt_tokens}}},
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{"id", gen_chatcmplid()}};
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json res =
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json{{"choices", choices},
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{"created", t},
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{"model",
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json_value(request, "model", std::string(DEFAULT_OAICOMPAT_MODEL))},
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{"object", streaming ? "chat.completion.chunk" : "chat.completion"},
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{"usage",
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json{{"completion_tokens", num_tokens_predicted},
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{"prompt_tokens", num_prompt_tokens},
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{"total_tokens", num_tokens_predicted + num_prompt_tokens}}},
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{"id", gen_chatcmplid()}};
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if (server_verbose) {
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res["__verbose"] = result;
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}
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if (server_verbose) {
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res["__verbose"] = result;
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}
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if (result.contains("completion_probabilities")) {
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res["completion_probabilities"] = json_value(result, "completion_probabilities", json::array());
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}
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if (result.contains("completion_probabilities")) {
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res["completion_probabilities"] =
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json_value(result, "completion_probabilities", json::array());
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}
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return res;
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return res;
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}
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// return value is vector as there is one case where we might need to generate two responses
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static std::vector<json> format_partial_response_oaicompat(task_result response) {
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json result = response.result_json;
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json result = response.result_json;
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if (!result.contains("model") || !result.contains("oaicompat_token_ctr")) {
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return std::vector<json>({response.result_json});
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}
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bool first = json_value(result, "oaicompat_token_ctr", 0) == 0;
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std::string modelname =
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json_value(result, "model", std::string(DEFAULT_OAICOMPAT_MODEL));
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bool stopped_word = json_value(result, "stopped_word", false);
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bool stopped_eos = json_value(result, "stopped_eos", false);
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bool stopped_limit = json_value(result, "stopped_limit", false);
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std::string content = json_value(result, "content", std::string(""));
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std::string finish_reason = "";
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if (stopped_word || stopped_eos) {
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finish_reason = "stop";
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}
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if (stopped_limit) {
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finish_reason = "length";
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}
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std::time_t t = std::time(0);
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json choices;
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if (!finish_reason.empty()) {
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choices = json::array({json{{"finish_reason", finish_reason},
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{"index", 0},
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{"delta", json::object()}}});
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} else {
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if (first) {
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if (content.empty()) {
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choices = json::array({json{{"finish_reason", nullptr},
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{"index", 0},
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{"delta", json{{"role", "assistant"}}}}});
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} else {
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// We have to send this as two updates to conform to openai behavior
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json initial_ret = json{{"choices",
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json::array({json{
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{"finish_reason", nullptr},
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{"index", 0},
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{"delta", json{
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{"role", "assistant"}
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}}}})},
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{"created", t},
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{"id", gen_chatcmplid()},
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{"model", modelname},
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{"object", "chat.completion.chunk"}};
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json second_ret = json{{"choices",
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json::array({json{
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{"finish_reason", nullptr},
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{"index", 0},
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{"delta", json{
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{"content", content}}}}})},
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{"created", t},
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{"id", gen_chatcmplid()},
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{"model", modelname},
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{"object", "chat.completion.chunk"}};
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return std::vector<json>({initial_ret, second_ret});
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}
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} else {
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// Some idosyncrasy in task processing logic makes several trailing calls
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// with empty content, we ignore these at the calee site.
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if (content.empty()) {
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return std::vector<json>({json::object()});
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}
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choices = json::array({json{
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{"finish_reason", nullptr},
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{"index", 0},
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{"delta",
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json{
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{"content", content},
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}},
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}});
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if (!result.contains("model") || !result.contains("oaicompat_token_ctr")) {
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return std::vector<json>({response.result_json});
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}
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}
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json ret = json{{"choices", choices},
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{"created", t},
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{"id", gen_chatcmplid()},
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{"model", modelname},
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{"object", "chat.completion.chunk"}};
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return std::vector<json>({ret});
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bool first = json_value(result, "oaicompat_token_ctr", 0) == 0;
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std::string modelname =
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json_value(result, "model", std::string(DEFAULT_OAICOMPAT_MODEL));
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bool stopped_word = json_value(result, "stopped_word", false);
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bool stopped_eos = json_value(result, "stopped_eos", false);
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bool stopped_limit = json_value(result, "stopped_limit", false);
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std::string content = json_value(result, "content", std::string(""));
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std::string finish_reason = "";
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if (stopped_word || stopped_eos) {
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finish_reason = "stop";
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}
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if (stopped_limit) {
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finish_reason = "length";
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}
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std::time_t t = std::time(0);
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json choices;
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if (!finish_reason.empty()) {
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choices = json::array({json{{"finish_reason", finish_reason},
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{"index", 0},
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{"delta", json::object()}}});
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} else {
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if (first) {
|
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if (content.empty()) {
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choices = json::array({json{{"finish_reason", nullptr},
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{"index", 0},
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{"delta", json{{"role", "assistant"}}}}});
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} else {
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||||
// We have to send this as two updates to conform to openai behavior
|
||||
json initial_ret = json{{"choices", json::array({json{
|
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{"finish_reason", nullptr},
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{"index", 0},
|
||||
{"delta", json{
|
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{"role", "assistant"}
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}}}})},
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{"created", t},
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||||
{"id", gen_chatcmplid()},
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||||
{"model", modelname},
|
||||
{"object", "chat.completion.chunk"}};
|
||||
|
||||
json second_ret = json{
|
||||
{"choices", json::array({json{{"finish_reason", nullptr},
|
||||
{"index", 0},
|
||||
{"delta", json{
|
||||
{"content", content}}}
|
||||
}})},
|
||||
{"created", t},
|
||||
{"id", gen_chatcmplid()},
|
||||
{"model", modelname},
|
||||
{"object", "chat.completion.chunk"}};
|
||||
|
||||
return std::vector<json>({initial_ret, second_ret});
|
||||
}
|
||||
} else {
|
||||
// Some idiosyncrasy in task processing logic makes several trailing calls
|
||||
// with empty content, we ignore these at the calee site.
|
||||
if (content.empty()) {
|
||||
return std::vector<json>({json::object()});
|
||||
}
|
||||
|
||||
choices = json::array({json{
|
||||
{"finish_reason", nullptr},
|
||||
{"index", 0},
|
||||
{"delta",
|
||||
json{
|
||||
{"content", content},
|
||||
}},
|
||||
}});
|
||||
}
|
||||
}
|
||||
|
||||
json ret = json{{"choices", choices},
|
||||
{"created", t},
|
||||
{"id", gen_chatcmplid()},
|
||||
{"model", modelname},
|
||||
{"object", "chat.completion.chunk"}};
|
||||
|
||||
return std::vector<json>({ret});
|
||||
}
|
||||
|
||||
static json format_partial_response(
|
||||
@@ -2670,76 +2655,76 @@ int main(int argc, char **argv)
|
||||
});
|
||||
|
||||
|
||||
svr.Post("/v1/chat/completions", [&llama](const httplib::Request &req,
|
||||
httplib::Response &res) {
|
||||
json data = oaicompat_completion_params_parse(json::parse(req.body));
|
||||
|
||||
const int task_id = llama.request_completion(data, false, false);
|
||||
if (!json_value(data, "stream", false)) {
|
||||
std::string completion_text;
|
||||
task_result result = llama.next_result(task_id);
|
||||
|
||||
if (!result.error && result.stop) {
|
||||
json oaicompat_result = format_final_response_oaicompat(data, result);
|
||||
|
||||
res.set_content(oaicompat_result.dump(-1, ' ', false,
|
||||
json::error_handler_t::replace),
|
||||
"application/json");
|
||||
} else {
|
||||
res.status = 500;
|
||||
res.set_content(result.result_json["content"], "text/plain");
|
||||
return;
|
||||
}
|
||||
} else {
|
||||
const auto chunked_content_provider = [task_id, &llama](size_t,
|
||||
httplib::DataSink &sink) {
|
||||
while (true) {
|
||||
task_result llama_result = llama.next_result(task_id);
|
||||
if (!llama_result.error) {
|
||||
std::vector<json> result_array = format_partial_response_oaicompat( llama_result);
|
||||
|
||||
for (auto it = result_array.begin(); it != result_array.end(); ++it)
|
||||
svr.Post("/v1/chat/completions", [&llama](const httplib::Request &req,
|
||||
httplib::Response &res)
|
||||
{
|
||||
if (!it->empty()) {
|
||||
const std::string str =
|
||||
"data: " +
|
||||
it->dump(-1, ' ', false, json::error_handler_t::replace) +
|
||||
"\n\n";
|
||||
LOG_VERBOSE("data stream", {{"to_send", str}});
|
||||
if (!sink.write(str.c_str(), str.size())) {
|
||||
return false;
|
||||
json data = oaicompat_completion_params_parse(json::parse(req.body));
|
||||
|
||||
const int task_id = llama.request_completion(data, false, false);
|
||||
|
||||
if (!json_value(data, "stream", false)) {
|
||||
std::string completion_text;
|
||||
task_result result = llama.next_result(task_id);
|
||||
|
||||
if (!result.error && result.stop) {
|
||||
json oaicompat_result = format_final_response_oaicompat(data, result);
|
||||
|
||||
res.set_content(oaicompat_result.dump(-1, ' ', false,
|
||||
json::error_handler_t::replace),
|
||||
"application/json");
|
||||
} else {
|
||||
res.status = 500;
|
||||
res.set_content(result.result_json["content"], "text/plain");
|
||||
return;
|
||||
}
|
||||
} else {
|
||||
const auto chunked_content_provider = [task_id, &llama](size_t, httplib::DataSink &sink) {
|
||||
while (true) {
|
||||
task_result llama_result = llama.next_result(task_id);
|
||||
if (!llama_result.error) {
|
||||
std::vector<json> result_array = format_partial_response_oaicompat( llama_result);
|
||||
|
||||
for (auto it = result_array.begin(); it != result_array.end(); ++it)
|
||||
{
|
||||
if (!it->empty()) {
|
||||
const std::string str =
|
||||
"data: " +
|
||||
it->dump(-1, ' ', false, json::error_handler_t::replace) +
|
||||
"\n\n";
|
||||
LOG_VERBOSE("data stream", {{"to_send", str}});
|
||||
if (!sink.write(str.c_str(), str.size())) {
|
||||
return false;
|
||||
}
|
||||
}
|
||||
}
|
||||
if (llama_result.stop) {
|
||||
break;
|
||||
}
|
||||
} else {
|
||||
const std::string str =
|
||||
"error: " +
|
||||
llama_result.result_json.dump(-1, ' ', false,
|
||||
json::error_handler_t::replace) +
|
||||
"\n\n";
|
||||
LOG_VERBOSE("data stream", {{"to_send", str}});
|
||||
if (!sink.write(str.c_str(), str.size())) {
|
||||
return false;
|
||||
}
|
||||
break;
|
||||
}
|
||||
}
|
||||
sink.done();
|
||||
return true;
|
||||
};
|
||||
|
||||
auto on_complete = [task_id, &llama](bool) {
|
||||
// cancel request
|
||||
llama.request_cancel(task_id);
|
||||
};
|
||||
|
||||
res.set_chunked_content_provider("text/event-stream", chunked_content_provider, on_complete);
|
||||
}
|
||||
}
|
||||
if (llama_result.stop) {
|
||||
break;
|
||||
}
|
||||
} else {
|
||||
const std::string str =
|
||||
"error: " +
|
||||
llama_result.result_json.dump(-1, ' ', false,
|
||||
json::error_handler_t::replace) +
|
||||
"\n\n";
|
||||
LOG_VERBOSE("data stream", {{"to_send", str}});
|
||||
if (!sink.write(str.c_str(), str.size())) {
|
||||
return false;
|
||||
}
|
||||
break;
|
||||
}
|
||||
}
|
||||
sink.done();
|
||||
return true;
|
||||
};
|
||||
|
||||
auto on_complete = [task_id, &llama](bool) {
|
||||
// cancel
|
||||
llama.request_cancel(task_id);
|
||||
};
|
||||
|
||||
res.set_chunked_content_provider("text/event-stream",
|
||||
chunked_content_provider, on_complete);
|
||||
}
|
||||
});
|
||||
});
|
||||
|
||||
svr.Post("/infill", [&llama](const httplib::Request &req, httplib::Response &res)
|
||||
{
|
||||
|
||||
Reference in New Issue
Block a user