refactor: Clean up platform file and rename to a more generic name

CMakeLists.txt

@@ -1,4 +1,4 @@
-set(srcs mqtt_client.c lib/mqtt_msg.c lib/platform_esp32_idf.c)
+set(srcs mqtt_client.c lib/mqtt_msg.c lib/platform.c)
 
 if(CONFIG_MQTT_PROTOCOL_5)
     list(APPEND srcs lib/mqtt5_msg.c mqtt5_client.c)

lib/include/platform.h

@@ -11,9 +11,20 @@
 #ifndef _PLATFORM_H__
 #define _PLATFORM_H__
 
-//Support ESP32
-#ifdef ESP_PLATFORM
-#include "platform_esp32_idf.h"
-#endif
+#include <stdint.h>
+
+char *platform_create_id_string(void);
+int platform_random(int max);
+uint64_t platform_tick_get_ms(void);
+
+#define ESP_MEM_CHECK(TAG, a, action) if (!(a)) {                                                      \
+        ESP_LOGE(TAG,"%s(%d): %s",  __FUNCTION__, __LINE__, "Memory exhausted"); \
+        action;                                                                                         \
+        }
+
+#define ESP_OK_CHECK(TAG, a, action) if ((a) != ESP_OK) {                                                     \
+        ESP_LOGE(TAG,"%s(%d): %s", __FUNCTION__, __LINE__, "Failed"); \
+        action;                                                                                               \
+        }
 
 #endif

lib/include/platform_esp32_idf.h

@@ -1,34 +0,0 @@
-/*
- * SPDX-FileCopyrightText: 2025 Espressif Systems (Shanghai) CO LTD
- *
- * SPDX-License-Identifier: Apache-2.0
- */
-/*
- * This file is subject to the terms and conditions defined in
- * file 'LICENSE', which is part of this source code package.
- * Tuan PM <tuanpm at live dot com>
- */
-#ifndef _ESP_PLATFORM_H__
-#define _ESP_PLATFORM_H__
-
-#include "freertos/FreeRTOS.h"
-#include "freertos/event_groups.h"
-
-#include <stdint.h>
-#include <sys/time.h>
-
-char *platform_create_id_string(void);
-int platform_random(int max);
-uint64_t platform_tick_get_ms(void);
-
-#define ESP_MEM_CHECK(TAG, a, action) if (!(a)) {                                                      \
-        ESP_LOGE(TAG,"%s(%d): %s",  __FUNCTION__, __LINE__, "Memory exhausted"); \
-        action;                                                                                         \
-        }
-
-#define ESP_OK_CHECK(TAG, a, action) if ((a) != ESP_OK) {                                                     \
-        ESP_LOGE(TAG,"%s(%d): %s", __FUNCTION__, __LINE__, "Failed"); \
-        action;                                                                                               \
-        }
-
-#endif

lib/platform.c

@@ -5,14 +5,18 @@
  */
 #include "platform.h"
 
-#ifdef ESP_PLATFORM
 #include "esp_log.h"
 #include "esp_mac.h"
 #include "soc/soc_caps.h"
-#include "esp_timer.h"
 #include "esp_random.h"
+#if CONFIG_IDF_TARGET_LINUX
+#include <sys/time.h>
+#else
+#include "esp_timer.h"
+#endif
 #include <stdlib.h>
 #include <stdint.h>
+#include <stdio.h>
 
 static const char *TAG = "platform";
 
@@ -25,6 +29,7 @@ static const char *TAG = "platform";
 #elif defined SOC_IEEE802154_SUPPORTED
 #define MAC_TYPE ESP_MAC_IEEE802154
 #endif
+
 char *platform_create_id_string(void)
 {
     char *id_string = calloc(1, MAX_ID_STRING);
@@ -47,7 +52,12 @@ int platform_random(int max)
 
 uint64_t platform_tick_get_ms(void)
 {
+#if CONFIG_IDF_TARGET_LINUX
+    /* IDF linux does not always provide a linked esp_timer implementation. */
+    struct timeval tv;
+    gettimeofday(&tv, NULL);
+    return (uint64_t)tv.tv_sec * 1000ULL + (uint64_t)(tv.tv_usec / 1000);
+#else
     return esp_timer_get_time() / (int64_t)1000;
-}
-
 #endif
+}