On 09/08/2016 11:05 AM, Pavel Butsykin wrote:
>>>
>>> #ifdef PCACHE_DEBUG
>>> # define PCACHE_DEBUG_PRINT 1
>>> #else
>>> # define PCACHE_DEBUG_PRINT 0
>>> #endif
>>> #define DPRINTF(fmt, ...) \
>>>      do { \
>>>          if (PCACHE_DEBUG_PRINT) { \
>>>              fprintf(stderr, ... __VA_ARGS__) \
>>>          } \
>>>      } while (0)
>>>
>>
>> OK, thanks!
> 
> Can I replace DPRINTFs on tracepoints?
> 

Yes, tracepoints are even better than conditional printfs. They are a
bit trickier to set up, but more powerful in the end.  And they are
equally immune to the bitrot that I was trying to prevent with your
definition of DPRINTF.

-- 
Eric Blake   eblake redhat com    +1-919-301-3266
Libvirt virtualization library http://libvirt.org

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