1c92945f59
Currently, several example dependencies rely on the fact that all registered components are added to the build, along with components specified in common requirements. This results in longer build times because even unused components must be built. Switch all examples to use idf_minimal_build to compile only the components actually required by the example. Signed-off-by: Frantisek Hrbata <frantisek.hrbata@espressif.com>
| Supported Targets | ESP32 | ESP32-C2 | ESP32-C3 | ESP32-C5 | ESP32-C6 | ESP32-C61 | ESP32-H2 | ESP32-P4 | ESP32-S2 | ESP32-S3 |
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C++ pthread Example
(See the README.md file in the upper level 'examples' directory for more information about examples.)
Support for the C++ threads in ESP-IDF is implemented on top of the ESP-pthread component. Thus, C++ threads created using the standard thread class constructor will automatically inherit the current ESP-pthread configuration. This example demonstrates how to leverage the thread configuration functions provided by ESP-pthread (e.g., esp_pthread_get_default_config() and esp_pthread_set_cfg()) to modify the stack sizes, priorities, names, and core affinities of the C++ threads.
Note: Due to the use of the C++ threads, this example is written in C++ instead of C.
How to use example
Hardware Required
This example should be able to run on any commonly available ESP32 development board.
Configure the project
idf.py menuconfig
- The default ESP-pthread configuration may also be modified under
Component config > PThreads
Build and Flash
Build the project and flash it to the board, then run monitor tool to view serial output:
idf.py -p PORT flash monitor
(Replace PORT with the name of the serial port to use.)
(To exit the serial monitor, type Ctrl-].)
See the Getting Started Guide for full steps to configure and use ESP-IDF to build projects.
Example Output
The following log output should appear when the example runs (note that the bootloader log has been omitted).
...
I (380) Thread 1: Core id: 0, prio: 5, minimum free stack: 2068 bytes.
I (0) pthread: This thread (with the default name) may run on any core.Core id: 1, prio: 5, minimum free stack: 2056 bytes.
I (390) Thread 1: This is the INHERITING thread with the same parameters as our parent, including name. Core id: 0, prio: 5, minimum free stack: 2092 bytes.
I (410) Thread 2: Core id: 1, prio: 5, minimum free stack: 2088 bytes.
I (410) main: core id: 0, prio: 1, minimum free stack: 2928 bytes.