espressif/esp-mqtt
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mqtt_client_stop stops only if started, fixed tabs->spaces, updated README, removed unused config

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closes #62
This commit is contained in:
David Cermak
2018-10-04 13:50:37 +02:00
parent ddca82d553
commit e26764502a
6 changed files with 74 additions and 203 deletions
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45
.travis.yml
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@ -13,6 +13,7 @@ addons:
before_install: before_install:
# Save path to the git respository # Save path to the git respository
- PROJECT_PATH=$(pwd) - PROJECT_PATH=$(pwd)
- CI_COMMIT_SHA=$(git rev-parse HEAD)
install: install:
# Install ESP32 toochain following steps as desribed # Install ESP32 toochain following steps as desribed
@ -24,31 +25,35 @@ install:
- mkdir -p ~/esp - mkdir -p ~/esp
- cd ~/esp - cd ~/esp
# Download binary toolchain for the ESP32 # Download binary toolchain for the ESP32
- wget https://dl.espressif.com/dl/xtensa-esp32-elf-linux64-1.22.0-61-gab8375a-5.2.0.tar.gz - wget https://dl.espressif.com/dl/xtensa-esp32-elf-linux64-1.22.0-80-g6c4433a-5.2.0.tar.gz
- tar -xzf xtensa-esp32-elf-linux64-1.22.0-61-gab8375a-5.2.0.tar.gz - tar -xzf xtensa-esp32-elf-linux64-1.22.0-80-g6c4433a-5.2.0.tar.gz
# Make xtensa-esp32-elf available for all terminal sessions
- export PATH=$PATH:$HOME/esp/xtensa-esp32-elf/bin
# Get ESP-IDF from github # Get ESP-IDF from github
- git clone --recursive https://github.com/espressif/esp-idf.git - git clone --recursive https://github.com/espressif/esp-idf.git
# Set the path to ESP-IDF directory # Set the path to ESP-IDF directory
- export IDF_PATH=~/esp/esp-idf - export IDF_PATH=~/esp/esp-idf
- python -m pip install --user -r $IDF_PATH/requirements.txt
# Setup build tool: xtensa-esp32-elf and idf.py
- export PATH=$PATH:$HOME/esp/xtensa-esp32-elf/bin:$IDF_PATH/tools
script: script:
# Go back to the git repository # Legacy build with IDF < 3.2
- cd $PROJECT_PATH/examples/mqtt_tcp - cd $IDF_PATH && git checkout --recurse-submodules v3.1
# Update configuration so that kconfig doesn't start interactive mode - cd $PROJECT_PATH
- make defconfig - ./modify_for_legacy_idf.sh || true
# Build project from the git repository - cd $PROJECT_PATH/examples/tcp
- make -j4
- cd $PROJECT_PATH/examples/mqtt_ssl
- make defconfig
- make -j4
- cd $PROJECT_PATH/examples/mqtt_ws
- make defconfig
- make -j4
- cd $PROJECT_PATH/examples/mqtt_wss
- make defconfig
- make -j4
- cd $PROJECT_PATH/examples/emitter-client
- make defconfig - make defconfig
- make -j4 - make -j4
# Master build with latest IDF
- cd $IDF_PATH && git checkout --recurse-submodules master
- cd $IDF_PATH/components/mqtt/esp-mqtt
- git remote add local $PROJECT_PATH/.git
- git fetch local
- git checkout $CI_COMMIT_SHA
- cd $IDF_PATH/examples/protocols/mqtt/tcp
- idf.py build
- cd $IDF_PATH/examples/protocols/mqtt/ssl
- idf.py build
- cd $IDF_PATH/examples/protocols/mqtt/ws
- idf.py build
- cd $IDF_PATH/examples/protocols/mqtt/wss
- idf.py build

8
CMakeLists.txt
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@ -1,8 +0,0 @@
set(COMPONENT_ADD_INCLUDEDIRS "include")
set(COMPONENT_PRIV_INCLUDEDIRS "lib/include")
set(COMPONENT_SRCDIRS ". lib")
set(COMPONENT_REQUIRES lwip nghttp mbedtls)
register_component()

153
README.md
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@ -15,158 +15,11 @@
## How to use ## How to use
Clone this component to [ESP-IDF](https://github.com/espressif/esp-idf) project (as submodule): [ESP-MQTT](https://github.com/espressif/esp-mqtt) is a standard [ESP-IDF](https://github.com/espressif/esp-idf) component.
``` Please refer to instructions in [ESP-IDF](https://github.com/espressif/esp-idf)
git submodule add https://github.com/tuanpmt/espmqtt.git components/espmqtt
```
Or run a sample (make sure you have installed the [toolchain](http://esp-idf.readthedocs.io/en/latest/get-started/index.html#setup-toolchain)):
```
git clone https://github.com/tuanpmt/espmqtt.git
cd espmqtt/examples/mqtt_tcp
make menuconfig
make flash monitor
```
## Documentation ## Documentation
### URI Please refer to the standard [ESP-IDF](https://github.com/espressif/esp-idf) documentation here https://github.com/espressif/esp-idf/blob/master/docs/en/api-reference/protocols/mqtt.rst
- Curently support `mqtt`, `mqtts`, `ws`, `wss` schemes
- MQTT over TCP samples:
+ `mqtt://iot.eclipse.org`: MQTT over TCP, default port 1883:
+ `mqtt://iot.eclipse.org:1884` MQTT over TCP, port 1884:
+ `mqtt://username:password@iot.eclipse.org:1884` MQTT over TCP, port 1884, with username and password
- MQTT over SSL samples:
+ `mqtts://iot.eclipse.org`: MQTT over SSL, port 8883
+ `mqtts://iot.eclipse.org:8884`: MQTT over SSL, port 8884
- MQTT over Websocket samples:
+ `ws://iot.eclipse.org:80/ws`
- MQTT over Websocket Secure samples:
+ `wss://iot.eclipse.org:443/ws`
- Minimal configurations:
```c
const esp_mqtt_client_config_t mqtt_cfg = {
.uri = "mqtt://iot.eclipse.org",
.event_handle = mqtt_event_handler,
// .user_context = (void *)your_context
};
```
- If there are any options related to the URI in `esp_mqtt_client_config_t`, the option defined by the URI will be overridden. Sample:
```c
const esp_mqtt_client_config_t mqtt_cfg = {
.uri = "mqtt://iot.eclipse.org:1234",
.event_handle = mqtt_event_handler,
.port = 4567,
};
//MQTT client will connect to iot.eclipse.org using port 4567
```
### SSL
- Get Certification from server, example: `iot.eclipse.org` `openssl s_client -showcerts -connect iot.eclipse.org:8883 </dev/null 2>/dev/null|openssl x509 -outform PEM >iot_eclipse_org.pem`
- Check the sample application: `examples/mqtt_ssl`
- Configuration:
```cpp
const esp_mqtt_client_config_t mqtt_cfg = {
.uri = "mqtts://iot.eclipse.org:8883",
.event_handle = mqtt_event_handler,
.cert_pem = (const char *)iot_eclipse_org_pem_start,
};
```
### More options for `esp_mqtt_client_config_t`
- `event_handle` for MQTT events
- `host`: MQTT server domain (ipv4 as string)
- `port`: MQTT server port
- `client_id`: default client id is `ESP32_%CHIPID%`
- `username`: MQTT username
- `password`: MQTT password
- `lwt_topic, lwt_msg, lwt_qos, lwt_retain, lwt_msg_len`: are mqtt lwt options, default NULL
- `disable_clean_session`: mqtt clean session, default clean_session is true
- `keepalive`: (value in seconds) mqtt keepalive, default is 120 seconds
- `disable_auto_reconnect`: this mqtt client will reconnect to server (when errors/disconnect). Set `disable_auto_reconnect=true` to disable
- `user_context` pass user context to this option, then can receive that context in `event->user_context`
- `task_prio, task_stack` for MQTT task, default priority is 5, and task_stack = 6144 bytes (or default task stack can be set via `make menucofig`).
- `buffer_size` for MQTT send/receive buffer, default is 1024
- `cert_pem` pointer to CERT file for server verify (with SSL), default is NULL, not required to verify the server
- `transport`: override URI transport
+ `MQTT_TRANSPORT_OVER_TCP`: MQTT over TCP, using scheme: `mqtt`
+ `MQTT_TRANSPORT_OVER_SSL`: MQTT over SSL, using scheme: `mqtts`
+ `MQTT_TRANSPORT_OVER_WS`: MQTT over Websocket, using scheme: `ws`
+ `MQTT_TRANSPORT_OVER_WSS`: MQTT over Websocket Secure, using scheme: `wss`
### Change settings in `menuconfig`
```
make menuconfig
-> Component config -> ESPMQTT Configuration
```
## Example
Check `examples/mqtt_tcp` and `examples/mqtt_ssl` project. In Short:
```cpp
static esp_err_t mqtt_event_handler(esp_mqtt_event_handle_t event)
{
esp_mqtt_client_handle_t client = event->client;
int msg_id;
// your_context_t *context = event->context;
switch (event->event_id) {
case MQTT_EVENT_CONNECTED:
ESP_LOGI(TAG, "MQTT_EVENT_CONNECTED");
msg_id = esp_mqtt_client_subscribe(client, "/topic/qos0", 0);
ESP_LOGI(TAG, "sent subscribe successful, msg_id=%d", msg_id);
msg_id = esp_mqtt_client_subscribe(client, "/topic/qos1", 1);
ESP_LOGI(TAG, "sent subscribe successful, msg_id=%d", msg_id);
msg_id = esp_mqtt_client_unsubscribe(client, "/topic/qos1");
ESP_LOGI(TAG, "sent unsubscribe successful, msg_id=%d", msg_id);
break;
case MQTT_EVENT_DISCONNECTED:
ESP_LOGI(TAG, "MQTT_EVENT_DISCONNECTED");
break;
case MQTT_EVENT_SUBSCRIBED:
ESP_LOGI(TAG, "MQTT_EVENT_SUBSCRIBED, msg_id=%d", event->msg_id);
msg_id = esp_mqtt_client_publish(client, "/topic/qos0", "data", 0, 0, 0);
ESP_LOGI(TAG, "sent publish successful, msg_id=%d", msg_id);
break;
case MQTT_EVENT_UNSUBSCRIBED:
ESP_LOGI(TAG, "MQTT_EVENT_UNSUBSCRIBED, msg_id=%d", event->msg_id);
break;
case MQTT_EVENT_PUBLISHED:
ESP_LOGI(TAG, "MQTT_EVENT_PUBLISHED, msg_id=%d", event->msg_id);
break;
case MQTT_EVENT_DATA:
ESP_LOGI(TAG, "MQTT_EVENT_DATA");
printf("TOPIC=%.*s\r\n", event->topic_len, event->topic);
printf("DATA=%.*s\r\n", event->data_len, event->data);
break;
case MQTT_EVENT_ERROR:
ESP_LOGI(TAG, "MQTT_EVENT_ERROR");
break;
}
return ESP_OK;
}
const esp_mqtt_client_config_t mqtt_cfg = {
.uri = "mqtt://iot.eclipse.org",
.event_handle = mqtt_event_handler,
// .user_context = (void *)your_context
};
esp_mqtt_client_handle_t client = esp_mqtt_client_init(&mqtt_cfg);
esp_mqtt_client_start(client);
```
## License ## License
- MQTT Package - [Stephen Robinson - contiki-mqtt](https://github.com/esar/contiki-mqtt) - MQTT Package - [Stephen Robinson - contiki-mqtt](https://github.com/esar/contiki-mqtt)

10
component.mk
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@ -1,10 +0,0 @@
#
# Component Makefile
#
# This Makefile should, at the very least, just include $(SDK_PATH)/make/component.mk. By default,
# this will take the sources in this directory, compile them and link them into
# lib(subdirectory_name).a in the build directory. This behaviour is entirely configurable,
# please read the SDK documents if you need to do this.
#
COMPONENT_SRCDIRS := . lib
COMPONENT_PRIV_INCLUDEDIRS := lib/include

27
modify_for_legacy_idf.sh Executable file
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@ -0,0 +1,27 @@
#!/usr/bin/env bash
# This snipped prepares environment for using esp-mqtt repository separately from idf -- legacy use before IDFv3.2
#
esp_mqtt_path=`pwd`
mkdir -p ${esp_mqtt_path}/examples
pushd
cd $IDF_PATH
former_commit_id=`git rev-parse HEAD`
git checkout master
for example in tcp; do
cp -r $IDF_PATH/examples/protocols/mqtt/${example} ${esp_mqtt_path}/examples
echo 'EXTRA_COMPONENT_DIRS += $(PROJECT_PATH)/../../../' > ${esp_mqtt_path}/examples/${example}/Makefile
cat $IDF_PATH/examples/protocols/mqtt/${example}/Makefile >> ${esp_mqtt_path}/examples/${example}/Makefile
echo "CONFIG_MQTT_TRANSPORT_SSL=" >> ${esp_mqtt_path}/examples/${example}/sdkconfig.defaults
echo "CONFIG_MQTT_TRANSPORT_WEBSOCKET=" >> ${esp_mqtt_path}/examples/${example}/sdkconfig.defaults
done
cp -r $IDF_PATH/components/tcp_transport ${esp_mqtt_path}/..
rm ${esp_mqtt_path}/../tcp_transport/transport_ssl.c
echo -e "#include \"esp_transport.h\"\nvoid esp_transport_ws_set_path(esp_transport_handle_t t, const char *path) {}" > ${esp_mqtt_path}/../tcp_transport/transport_ws.c
cp $IDF_PATH/components/mqtt/Kconfig ${esp_mqtt_path}
sed 's/esp-mqtt/\./g' $IDF_PATH/components/mqtt/component.mk > ${esp_mqtt_path}/component.mk
git checkout $former_commit_id
popd

34
mqtt_client.c
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@ -761,28 +761,32 @@ esp_err_t esp_mqtt_client_start(esp_mqtt_client_handle_t client)
return ESP_FAIL; return ESP_FAIL;
} }
#if MQTT_CORE_SELECTION_ENABLED #if MQTT_CORE_SELECTION_ENABLED
ESP_LOGD(TAG, "Core selection enabled on %u", MQTT_TASK_CORE); ESP_LOGD(TAG, "Core selection enabled on %u", MQTT_TASK_CORE);
if (xTaskCreatePinnedToCore(esp_mqtt_task, "mqtt_task", client->config->task_stack, client, client->config->task_prio, NULL, MQTT_TASK_CORE) != pdTRUE) { if (xTaskCreatePinnedToCore(esp_mqtt_task, "mqtt_task", client->config->task_stack, client, client->config->task_prio, NULL, MQTT_TASK_CORE) != pdTRUE) {
ESP_LOGE(TAG, "Error create mqtt task"); ESP_LOGE(TAG, "Error create mqtt task");
return ESP_FAIL; return ESP_FAIL;
} }
#else #else
ESP_LOGD(TAG, "Core selection disabled"); ESP_LOGD(TAG, "Core selection disabled");
if (xTaskCreate(esp_mqtt_task, "mqtt_task", client->config->task_stack, client, client->config->task_prio, NULL) != pdTRUE) { if (xTaskCreate(esp_mqtt_task, "mqtt_task", client->config->task_stack, client, client->config->task_prio, NULL) != pdTRUE) {
ESP_LOGE(TAG, "Error create mqtt task") ; ESP_LOGE(TAG, "Error create mqtt task");
return ESP_FAIL; return ESP_FAIL;
} }
#endif #endif
return ESP_OK; return ESP_OK;
} }
esp_err_t esp_mqtt_client_stop(esp_mqtt_client_handle_t client) esp_err_t esp_mqtt_client_stop(esp_mqtt_client_handle_t client)
{ {
client->run = false; if (client->run) {
xEventGroupWaitBits(client->status_bits, STOPPED_BIT, false, true, portMAX_DELAY); client->run = false;
client->state = MQTT_STATE_UNKNOWN; xEventGroupWaitBits(client->status_bits, STOPPED_BIT, false, true, portMAX_DELAY);
return ESP_OK; client->state = MQTT_STATE_UNKNOWN;
return ESP_OK;
} else {
ESP_LOGW(TAG, "Client asked to stop, but was not started");
return ESP_FAIL;
}
} }
static esp_err_t esp_mqtt_client_ping(esp_mqtt_client_handle_t client) static esp_err_t esp_mqtt_client_ping(esp_mqtt_client_handle_t client)