This project, developed by Chuanwise, is for the course Analysing and Application of Linux Kernel Source Codes in the XiDian University.
Run following commands in the repository directory:
cmake .
makeAfter build, run following commands to execute the demo test test_producer_consumer located in tests/test_producer_consumer:
make testAnd you'll see outputs:
Running tests...
Test project /home/chuanwise/develop/projects/thread
Start 1: test_producer_consumer
1/1 Test #1: test_producer_consumer ........... Passed 1.00 sec
100% tests passed, 0 tests failed out of 1
Total Test time (real) = 1.01 sec
You can find the corresponding test report in Testing/Temporary/LastTest.log:
Start testing: Dec 31 16:03 CST
----------------------------------------------------------
1/1 Testing: test_producer_consumer
1/1 Test: test_producer_consumer
Command: "/home/chuanwise/develop/projects/thread/tests/test_producer_consumer"
Directory: /home/chuanwise/develop/projects/thread/tests
"test_producer_consumer" start time: Dec 31 16:03 CST
Output:
----------------------------------------------------------
[M] waiting
[P] procuding [C] consuming 0
[P] procuding 1
[P] procuding 2
[P] procuding 3
[P] procuding 4
[P] procuding 5
[P] procuding 6
[P] procuding 7
[C] consuming 6
[P] procuding 8
[P] procuding 9
[C] consuming 9
[C] consuming 8
[C] consuming 7
[C] consuming 5
[C] consuming 4
[C] consuming 3
[C] consuming 2
[C] consuming 1
[P] procuding 10
[P] procuding 11
[C] consuming 10
[P] procuding [C
consuming 12
[P] procuding 13
[C] consuming [P] procuding 14
[C] consuming 14
[P] procuding 15
[C] consuming 15
[P] procuding 16
[C] consuming 16
[P] procuding 17
[C] consuming 17
[P] procuding 18
[C] consuming 18
[P] procuding 19[C] consuming 19
[P] procuding 20
[C] consuming 20
[P] procuding 21
[C] consuming 21
[P] procuding 22
[C] consuming 22
[P] procuding [C] consuming 23
[P] procuding 24
[C] consuming [P] procuding 25
[C] consuming 25
[P] procuding 26
[C] consuming 26
[P] procuding 27
[C] consuming 27
[P] procuding [C] consuming 28
[P] procuding 29
[C] consuming [P] producer exited!
[C] consuming 11
[C] consumer exited!
<end of output>
Test time = 1.00 sec
----------------------------------------------------------
Test Passed.
"test_producer_consumer" end time: Dec 31 16:03 CST
"test_producer_consumer" time elapsed: 00:00:01
----------------------------------------------------------
End testing: Dec 31 16:03 CST
The problem with the output format is caused by multi-threading calling printf without locking.
However, I don't want to fix it because I'm using a non-blocking queue to improve performance, and printf is just used to check if the program is running correctly. If I add locking here just for testing, then I might as well use a lock to implement the queue.
- Remove the signal handler of main thread to prevent automatical calling of
waitpid.