8000 2016-11-22 · Smeedy/esp32-snippets@5dcef5f · GitHub
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kolban
committed
2016-11-22
1 parent e00f07a commit 5dcef5f

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7 files changed

+391
-32
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7 files changed

+391
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‎c-utils/c_list.c

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#include <stdlib.h>
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#include "c_list.h"
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/**
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* A list is an ordered set of entries. We have the following primitives:
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* * list_create() - Create an empty list. The return is the list pointer.
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* * list_delete() - Delete the list and optionally free all its entries.
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* * list_first() - Return the first item in the list.
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* * list_insert() - Add an item to the end of the list.
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* * list_insert_after() - Add an item to the list after a given entry.
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* * list_insert_before() - Add an item to the list before a given entry.
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* * list_next() - Get the next item in the list.
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* * list_remove() - Remove a specific item from the list.
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* * list_removeByValue() - Find the first element in the list with a matching value and remove it.
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*/
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/**
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* Create a new list.
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*/
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list_t *list_createList() {
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list_t *pList = malloc(sizeof(list_t));
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pList->next = NULL;
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pList->prev = NULL;
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pList->value = NULL;
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return pList;
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} // list_createList
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/**
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* Delete a list.
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*/
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void list_deleteList(list_t *pList, int withFree) {
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list_t *pNext;
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while(pList != NULL) {
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pNext = pList->next;
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if (withFree) {
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free(pList->value);
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}
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free(pList);
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pList = pNext;
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}
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} // list_deleteList
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/**
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* Insert a new item at the end of the list.
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*[A] -> [endOLD] ------> [A] -> [endOLD] -> [X]
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*
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*/
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void list_insert(list_t *pList, void *value) {
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while(pList->next != NULL) {
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pList = pList->next;
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}
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list_insert_after(pList, value);
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} // list_insert
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/**
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* [pEntry] -> [B] ------> [pEntry] -> [X] -> [B]
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*
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*/
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void list_insert_after(list_t *pEntry, void *value) {
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list_t *pNew = malloc(sizeof(list_t));
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pNew->next = pEntry->next;
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pNew->prev = pEntry;
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pNew->value = value;
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// Order IS important here.
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if (pEntry->next != NULL) {
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pEntry->next->prev = pNew;
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}
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pEntry->next = pNew;
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} // list_insert_after
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/**
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* [A] -> [pEntry] ------> [A] -> [X] -> [pEntry]
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*
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*/
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void list_insert_before(list_t *pEntry, void *value) {
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// Can't insert before the list itself.
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if (pEntry->prev == NULL) {
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return;
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}
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list_t *pNew = malloc(sizeof(list_t));
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pNew->next = pEntry;
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pNew->prev = pEntry->prev;
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pNew->value = value;
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// Order IS important here.
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pEntry->prev->next = pNew;
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pEntry->prev = pNew;
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} // list_insert_before
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/**
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* Remove an item from the list.
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*/
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void list_remove(list_t *pList, list_t *pEntry, int withFree) {
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while(pList != NULL && pList->next != pEntry) {
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pList = pList->next;
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}
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if (pList == NULL) {
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return;
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}
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pList->next = pEntry->next;
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if (pEntry->next != NULL) {
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pEntry->next->prev = pList;
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}
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if (withFree) {
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free(pEntry->value);
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}
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free(pEntry);
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} // list_delete
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/**
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* Delete a list entry by value.
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*/
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void list_removeByValue(list_t *pList, void *value, int withFree) {
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list_t *pNext = pList->next;
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while(pNext != NULL) {
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if (pNext->value == value) {
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list_delete(pList, pNext, withFree);
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return;
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}
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} // End while
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} // list_deleteByValue
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/**
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* Get the next item in a list.
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*/
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list_t *list_next(list_t *pList) {
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if (pList == NULL) {
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return NULL;
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}
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return (pList->next);
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} // list_next
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list_t *list_first(list_t *pList) {
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return pList->next;
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} // list_first
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void *list_get_value(list_t *pList) {
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return pList->value;
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}
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‎c-utils/c_list.h

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/*
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* c_utils.h
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*
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* Created on: Nov 15, 2016
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* Author: kolban
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*/
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#ifndef COMPONENTS_C_LIST_H_
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#define COMPONENTS_C_LIST_H_
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typedef struct _list_t {
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void *value;
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struct _list_t *next;
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struct _list_t *prev;
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} list_t;
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list_t *list_createList();
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void list_deleteList(list_t *pList, int withFree);
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void list_insert(list_t *pList, void *value);
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void list_remove(list_t *pList, list_t *pEntry, int withFree);
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list_t *list_next(list_t *pList);
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void list_removeByValue(list_t *pList, void *value, int withFree);
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list_t *list_first(list_t *pList);
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void list_insert_after(list_t *pEntry, void *value);
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void list_insert_before(list_t *pEntry, void *value);
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void *list_get_value(list_t *pList);
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#endif /* COMPONENTS_C_LIST_H_ */

‎curl/fragments/testCurl.c

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#include "freertos/FreeRTOS.h"
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#include "esp_wifi.h"
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#include "esp_system.h"
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#include "esp_event.h"
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#include "esp_event_loop.h"
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#include "nvs_flash.h"
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#include "driver/gpio.h"
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#include "esp_log.h"
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#include "curl/curl.h"
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#define SSID "RASPI3"
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#define PASSWORD "password"
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/*
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#define SSID "guest"
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#define PASSWORD "kolbanguest"
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*/
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static char tag[] = "main";
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static size_t writeData(void *buffer, size_t size, size_t nmemb, void *userp) {
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ESP_LOGI(tag, "writeData called: buffer=0x%lx, size=%d, nmemb=%d", (unsigned long)buffer, size, nmemb);
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ESP_LOGI(tag, "data>> %.*s", size*nmemb, (char *)buffer);
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return size * nmemb;
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}
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void testCurl(void *taskData) {
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CURL *handle;
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CURLcode res;
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curl_version_info_data *data = curl_version_info(CURLVERSION_NOW);
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ESP_LOGI(tag, "Curl version info");
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ESP_LOGI(tag, "version: %s - %d", data->version, data->version_num);
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ESP_LOGI(tag, "host: %s", data->host);
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if (data->features & CURL_VERSION_IPV6) {
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ESP_LOGI(tag, "- IP V6 supported");
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} else {
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ESP_LOGI(tag, "- IP V6 NOT supported");
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}
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if (data->features & CURL_VERSION_SSL) {
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ESP_LOGI(tag, "- SSL supported");
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} else {
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ESP_LOGI(tag, "- SSL NOT supported");
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}
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if (data->features & CURL_VERSION_LIBZ) {
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ESP_LOGI(tag, "- LIBZ supported");
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} else {
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ESP_LOGI(tag, "- LIBZ NOT supported");
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}
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if (data->features & CURL_VERSION_NTLM) {
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ESP_LOGI(tag, "- NTLM supported");
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} else {
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ESP_LOGI(tag, "- NTLM NOT supported");
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}
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if (data->features & CURL_VERSION_DEBUG) {
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ESP_LOGI(tag, "- DEBUG supported");
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} else {
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ESP_LOGI(tag, "- DEBUG NOT supported");
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}
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if (data->features & CURL_VERSION_UNIX_SOCKETS) {
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ESP_LOGI(tag, "- UNIX sockets supported");
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} else {
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ESP_LOGI(tag, "- UNIX sockets NOT supported");
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}
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ESP_LOGI(tag, "Protocols:");
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int i=0;
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while(data->protocols[i] != NULL) {
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ESP_LOGI(tag, "- %s", data->protocols[i]);
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i++;
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}
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// Create a curl handle
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handle = curl_easy_init();
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if (handle == NULL) {
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ESP_LOGI(tag, "Failed to create a curl handle");
78+
vTaskDelete(NULL);
79+
return;
80+
}
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ESP_LOGI(tag, "Created a curl handle ...");
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//char *url = "http://example.com";
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char *url = "ftp://pi:raspberry@192.168.5.1/.profile";
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curl_easy_setopt(handle, CURLOPT_URL, url);
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/* example.com is redirected, so we tell libcurl to follow redirection */
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curl_easy_setopt(handle, CURLOPT_FOLLOWLOCATION, 1L);
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curl_easy_setopt(handle, CURLOPT_WRITEFUNCTION, writeData);
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/* Perform the request, res will get the return code */
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res = curl_easy_perform(handle);
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if (res != CURLE_OK) {
93+
ESP_LOGI(tag, "curl_easy_perform failed: %s", curl_easy_strerror(res));
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} else {
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ESP_LOGI(tag, "curl_easy_perform() completed without incident.");
96+
}
97+
curl_easy_cleanup(handle);
98+
vTaskDelete(NULL);
99+
} // End of testCurl
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esp_err_t wifi_event_handler(void *ctx, system_event_t *event)
103+
{
104+
if (event->event_id == SYSTEM_EVENT_STA_GOT_IP) {
105+
ESP_LOGI(tag, "Got an IP ... ready to go!");
106+
xTaskCreatePinnedToCore(&testCurl, "testCurl", 10000, NULL, 5, NULL, 0);
107+
return ESP_OK;
108+
}
109+
return ESP_OK;
110+
}
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int app_main(void)
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{
114+
nvs_flash_init();
115+
system_init();
116+
tcpip_adapter_init();
117+
ESP_ERROR_CHECK( esp_event_loop_init(wifi_event_handler, NULL) );
118+
wifi_init_config_t cfg = WIFI_INIT_CONFIG_DEFAULT();
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ESP_ERROR_CHECK( esp_wifi_init(&cfg) );
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ESP_ERROR_CHECK( esp_wifi_set_storage(WIFI_STORAGE_RAM) );
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ESP_ERROR_CHECK( esp_wifi_set_mode(WIFI_MODE_STA) );
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wifi_config_t sta_config = {
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.sta = {
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.ssid = SSID,
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.password = PASSWORD,
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.bssid_set = 0
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}
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};
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ESP_ERROR_CHECK( esp_wifi_set_config(WIFI_IF_STA, &sta_config) );
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ESP_ERROR_CHECK( esp_wifi_start() );
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ESP_ERROR_CHECK( esp_wifi_connect() );
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ESP_LOGI(tag, "Registering test vfs");
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return 0;
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}
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‎error handling/fragments/espToError.c

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#include <esp_err.h>
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char *espToString(esp_err_t value) {
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switch(value) {
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case ESP_OK:
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return "OK";
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case ESP_FAIL:
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return "Fail";
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case ESP_ERR_NO_MEM:
10+
return "No memory";
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case ESP_ERR_INVALID_ARG:
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return "Invalid argument";
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case ESP_ERR_INVALID_SIZE:
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return "Invalid state";
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case ESP_ERR_INVALID_STATE:
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return "Invalid state";
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case ESP_ERR_NOT_FOUND:
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return "Not found";
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case ESP_ERR_NOT_SUPPORTED:
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return "Not supported";
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case ESP_ERR_TIMEOUT:
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return "Timeout";
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}
24+
if (value >= ESP_ERR_WIFI_BASE) {
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return "WiFi error";
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}
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return "Unknown error";
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}

‎mongoose/webserver/main/main.c

Lines changed: 7 additions & 1 deletion
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@@ -31,7 +31,7 @@ static char tag []="mongooseTests";
3131
/**
3232
* Convert a Mongoose event type to a string.
3333
*/
34-
char *eventToString(int ev) {
34+
char *mongoose_eventToString(int ev) {
3535
static char temp[100];
3636
switch (ev) {
3737
case MG_EV_CONNECT:
@@ -76,6 +76,12 @@ char *eventToString(int ev) {
7676
return "MG_EV_MQTT_UNSUBACK";
7777
case MG_EV_MQTT_UNSUBSCRIBE:
7878
return "MG_EV_MQTT_UNSUBSCRIBE";
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case MG_EV_WEBSOCKET_HANDSHAKE_REQUEST:
80+
return "MG_EV_WEBSOCKET_HANDSHAKE_REQUEST";
81+
case MG_EV_WEBSOCKET_HANDSHAKE_DONE:
82+
return "MG_EV_WEBSOCKET_HANDSHAKE_DONE";
83+
case MG_EV_WEBSOCKET_FRAME:
84+
return "MG_EV_WEBSOCKET_FRAME";
7985
}
8086
sprintf(temp, "Unknown event: %d", ev);
8187
return temp;

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