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WHAT'S NEW
FreeRTOS website now available in Simplified Chinese
Search and browse content in your preferred language. See the blog post.
New FreeRTOS Long Term Support version now available.
Receive security patches and critical bug fixes on FreeRTOS libraries for two years. See the blog post.
FreeRTOS Extended Maintenance Program (EMP) registration now open.
Providing security patches and critical bug fixes on FreeRTOS Long Term Support (LTS) versions for up to 10 additional years. See the blog post.
FreeRTOS-Plus-TCP v3.0.0 released:
We've added comprehensive unit tests and penetration and protocol testing. See the blog post.
Featured FreeRTOS IoT Integrations:
Introducing three featured integrations for more secure IoT applications. See the blog post.

xMessageBufferIsEmpty()
[RTOS Message Buffer API]


message_buffer.h 

BaseType_t xMessageBufferIsEmpty( MessageBufferHandle_t xMessageBuffer );

Queries a message buffer to see if it is empty. A message buffer is empty if it does not contain any messages.

Message buffer functionality is enabled by including the FreeRTOS/source/stream_buffer.c source file in the build (as message buffers use stream buffers).

Parameters:
xMessageBuffer   The handle of the message buffer being queried.
Returns:
If the message buffer is empty then pdTRUE is returned. Otherwise pdFALSE is returned.






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