[Re: Simple, easy multithreaded circular buffer library for Linux?] - Linux-audio-user

19 Oct 2008

On Sun, Oct 19, 2008 at 01:03:23PM +0200, Olivier Guilyardi wrote:
...
  Ken Restivo a écrit :
  On Fri, Oct 17, 2008 at 04:39:25PM +0200, Olivier
Guilyardi wrote:

 svn co http://svn.samalyse.com/misc/rbtest
 cd rbtest
 make test
  cc -Wall -I. -I./jack -lpthread -o test-int-array-jack \
 		test-int-array.c jack/ringbuffer.c
 test-int-array.c: In function ‘main’:
 test-int-array.c:113: warning: format ‘%d’ expects type ‘int’, but argument 2 has type
‘long unsigned int’
 cc -Wall -I. -I./portaudio -lpthread -o test-int-array-portaudio \
 		test-int-array.c portaudio/ringbuffer.c portaudio/pa_ringbuffer.c
 test-int-array.c: In function ‘main’:
 test-int-array.c:113: warning: format ‘%d’ expects type ‘int’, but argument 2 has type
‘long unsigned int’
 cc -Wall -I. -I./portaudio -lpthread -o test-int-array-portaudio-nobarrier \
 		-DNO_MEMORY_BARRIER \
 		test-int-array.c portaudio/ringbuffer.c portaudio/pa_ringbuffer.c
 test-int-array.c: In function ‘main’:
 test-int-array.c:113: warning: format ‘%d’ expects type ‘int’, but argument 2 has type
‘long unsigned int’
 cc -Wall -I. -I./jack -lpthread -o test-int-array-jack-fix1 \
 		test-int-array.c jack/ringbuffer-fix1.c
 test-int-array.c: In function ‘main’:
 test-int-array.c:113: warning: format ‘%d’ expects type ‘int’, but argument 2 has type
‘long unsigned int’ 
 I only got these warnings on Mac OS X, I suppose it depends on the gcc 
 and/or libc version. That did not cause any segfault in my case though. 
 I've fixed it anyway.

  ./alltests.sh
 Starting ringbuffer tests (buffer size: 512)

 === Jack ringbuffer test ===
 starting ringbuffer stress test (2 minutes max)
 buffer size (bytes): 512
 array size (bytes): 256
 ./alltests.sh: line 9:  7742 Segmentation fault      ./test-int-array-jack $BUFFER_SIZE

 Info on the system this was run on, is here:
 http://restivo.nfshost.com/projects/asus/system-details/ 
 Please update rbtest to r309.

$ svn update
U    test-int-array.c
Updated to revision 309.

$ make clean
rm test-int-array-jack test-int-array-portaudio test-int-array-portaudio-nobarrier \
		test-int-array-jack-fix1

$ make test
cc -Wall -I. -I./jack -lpthread -o test-int-array-jack \
		test-int-array.c jack/ringbuffer.c
cc -Wall -I. -I./portaudio -lpthread -o test-int-array-portaudio \
		test-int-array.c portaudio/ringbuffer.c portaudio/pa_ringbuffer.c
cc -Wall -I. -I./portaudio -lpthread -o test-int-array-portaudio-nobarrier \
		-DNO_MEMORY_BARRIER \
		test-int-array.c portaudio/ringbuffer.c portaudio/pa_ringbuffer.c
cc -Wall -I. -I./jack -lpthread -o test-int-array-jack-fix1 \
		test-int-array.c jack/ringbuffer-fix1.c
./alltests.sh
Starting ringbuffer tests (buffer size: 512)

=== Jack ringbuffer test ===
starting ringbuffer stress test (2 minutes max)
buffer size (bytes): 512
array size (bytes): 256
./alltests.sh: line 9: 16706 Segmentation fault      ./test-int-array-jack $BUFFER_SIZE

=== Jack ringbuffer test (with fix 1) ===
starting ringbuffer stress test (2 minutes max)
buffer size (bytes): 512
array size (bytes): 256
./alltests.sh: line 13: 16709 Segmentation fault      ./test-int-array-jack-fix1
$BUFFER_SIZE

=== Portaudio ringbuffer test ===
starting ringbuffer stress test (2 minutes max)
buffer size (bytes): 512
array size (bytes): 256
./alltests.sh: line 17: 16712 Segmentation fault      ./test-int-array-portaudio
$BUFFER_SIZE

=== Portaudio ringbuffer test (without memory barriers) ===
starting ringbuffer stress test (2 minutes max)
buffer size (bytes): 512
array size (bytes): 256
./alltests.sh: line 21: 16715 Segmentation fault      ./test-int-array-portaudio-nobarrier
$BUFFER_SIZE
make: *** [test] Error 139

:-(

$ dpkg -l libc6 gcc
ii  gcc                               4:4.1.2-3                       The GNU C compiler
ii  libc6                             2.7-1                           GNU C Library:
Shared libraries

Unfortunately, I cannot and will not update this machine right now to see if that makes
rbtest work, because everything else on this machine works stably, it's my gigging
synth as well as my laptop, and I can't afford to have it destablize. Sorry.

-ken