0c517b734f
Agent loop runs on Core 1: pops inbound messages, builds system prompt from bootstrap files + memory, calls Claude API, saves session, pushes response to outbound queue. PSRAM-allocated buffers. Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
100 lines
3.4 KiB
C
100 lines
3.4 KiB
C
#include "agent_loop.h"
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#include "agent/context_builder.h"
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#include "mimi_config.h"
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#include "bus/message_bus.h"
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#include "llm/llm_proxy.h"
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#include "memory/session_mgr.h"
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#include <string.h>
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#include <stdlib.h>
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#include "esp_log.h"
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#include "esp_heap_caps.h"
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static const char *TAG = "agent";
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static void agent_loop_task(void *arg)
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{
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ESP_LOGI(TAG, "Agent loop started on core %d", xPortGetCoreID());
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/* Allocate large buffers from PSRAM */
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char *system_prompt = heap_caps_calloc(1, MIMI_CONTEXT_BUF_SIZE, MALLOC_CAP_SPIRAM);
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char *messages_json = heap_caps_calloc(1, MIMI_LLM_STREAM_BUF_SIZE, MALLOC_CAP_SPIRAM);
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char *history_json = heap_caps_calloc(1, MIMI_LLM_STREAM_BUF_SIZE, MALLOC_CAP_SPIRAM);
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char *response_buf = heap_caps_calloc(1, MIMI_LLM_STREAM_BUF_SIZE, MALLOC_CAP_SPIRAM);
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if (!system_prompt || !messages_json || !history_json || !response_buf) {
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ESP_LOGE(TAG, "Failed to allocate PSRAM buffers");
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vTaskDelete(NULL);
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return;
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}
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while (1) {
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mimi_msg_t msg;
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esp_err_t err = message_bus_pop_inbound(&msg, UINT32_MAX);
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if (err != ESP_OK) continue;
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ESP_LOGI(TAG, "Processing message from %s:%s", msg.channel, msg.chat_id);
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/* 1. Build system prompt */
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context_build_system_prompt(system_prompt, MIMI_CONTEXT_BUF_SIZE);
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/* 2. Load session history */
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session_get_history_json(msg.chat_id, history_json,
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MIMI_LLM_STREAM_BUF_SIZE, MIMI_AGENT_MAX_HISTORY);
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/* 3. Build messages array (history + current message) */
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context_build_messages(history_json, msg.content,
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messages_json, MIMI_LLM_STREAM_BUF_SIZE);
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/* 4. Call Claude API */
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err = llm_chat(system_prompt, messages_json, response_buf, MIMI_LLM_STREAM_BUF_SIZE);
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if (err == ESP_OK && response_buf[0]) {
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/* 5. Save to session */
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session_append(msg.chat_id, "user", msg.content);
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session_append(msg.chat_id, "assistant", response_buf);
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/* 6. Push response to outbound */
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mimi_msg_t out = {0};
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strncpy(out.channel, msg.channel, sizeof(out.channel) - 1);
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strncpy(out.chat_id, msg.chat_id, sizeof(out.chat_id) - 1);
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out.content = strdup(response_buf);
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if (out.content) {
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message_bus_push_outbound(&out);
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}
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} else {
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/* Send error response */
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mimi_msg_t out = {0};
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strncpy(out.channel, msg.channel, sizeof(out.channel) - 1);
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strncpy(out.chat_id, msg.chat_id, sizeof(out.chat_id) - 1);
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out.content = strdup(response_buf[0] ? response_buf : "Sorry, I encountered an error.");
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if (out.content) {
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message_bus_push_outbound(&out);
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}
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}
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/* Free inbound message content */
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free(msg.content);
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/* Log memory status */
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ESP_LOGI(TAG, "Free PSRAM: %d bytes",
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(int)heap_caps_get_free_size(MALLOC_CAP_SPIRAM));
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}
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}
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esp_err_t agent_loop_init(void)
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{
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ESP_LOGI(TAG, "Agent loop initialized");
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return ESP_OK;
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}
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esp_err_t agent_loop_start(void)
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{
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BaseType_t ret = xTaskCreatePinnedToCore(
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agent_loop_task, "agent_loop",
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MIMI_AGENT_STACK, NULL,
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MIMI_AGENT_PRIO, NULL, MIMI_AGENT_CORE);
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return (ret == pdPASS) ? ESP_OK : ESP_FAIL;
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}
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