53 lines
1.5 KiB
Plaintext
53 lines
1.5 KiB
Plaintext
Title: C++ Synchronization
|
|
|
|
Description:
|
|
|
|
The sample project illustrates usage of pure virtual class, member
|
|
functions with different types of arguments, global objects constructor
|
|
invocation.
|
|
|
|
A simple application demonstates basic sanity of the microkernel.
|
|
Two tasks (A and B) take turns printing a greeting message to the console,
|
|
and use sleep requests and semaphores to control the rate at which messages
|
|
are generated. This demonstrates that microkernel scheduling, communication,
|
|
and timing are operating correctly.
|
|
|
|
--------------------------------------------------------------------------------
|
|
|
|
Building and Running Project:
|
|
|
|
This microkernel project outputs to the console. It can be built and executed
|
|
on QEMU as follows:
|
|
|
|
make qemu
|
|
|
|
--------------------------------------------------------------------------------
|
|
|
|
Troubleshooting:
|
|
|
|
Problems caused by out-dated project information can be addressed by
|
|
issuing one of the following commands then rebuilding the project:
|
|
|
|
make clean # discard results of previous builds
|
|
# but keep existing configuration info
|
|
or
|
|
make pristine # discard results of previous builds
|
|
# and restore pre-defined configuration info
|
|
|
|
--------------------------------------------------------------------------------
|
|
|
|
Sample Output:
|
|
|
|
task_a: Hello World!
|
|
task_b: Hello World!
|
|
task_a: Hello World!
|
|
task_b: Hello World!
|
|
task_a: Hello World!
|
|
task_b: Hello World!
|
|
task_a: Hello World!
|
|
task_b: Hello World!
|
|
task_a: Hello World!
|
|
task_b: Hello World!
|
|
|
|
<repeats endlessly>
|