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examples/performance-thread: fix build on FreeBSD 10.0

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While later releases in the FreeBSD 10 series have a CPU_COUNT macro
defined, FreeBSD 10.0 and 10.1 do not have this macro. Therefore we provide
a basic fallback implementation of the macro for platforms where it is not
defined.

Fixes: 433ba6228f9a ("examples/performance-thread: add pthread_shim app")
Cc: stable@dpdk.org

Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
Acked-by: Pablo de Lara <pablo.de.lara.guarch@intel.com>
This commit is contained in:
Bruce Richardson 2017-04-28 11:18:15 +01:00 committed by Thomas Monjalon
parent a8c6a1ae12
commit b7162fee88
1 changed files with 15 additions and 0 deletions
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15
examples/performance-thread/pthread_shim/pthread_shim.c
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@ -48,6 +48,21 @@
#define POSIX_ERRNO(x) (x)
/* some releases of FreeBSD 10, e.g. 10.0, don't have CPU_COUNT macro */
#ifndef CPU_COUNT
#define CPU_COUNT(x) __cpu_count(x)
static inline unsigned int
__cpu_count(const rte_cpuset_t *cpuset)
{
unsigned int i, count = 0;
for (i = 0; i < RTE_MAX_LCORE; i++)
if (CPU_ISSET(i, cpuset))
count++;
return count;
}
#endif
/*
* this flag determines at run time if we override pthread
* calls and map then to equivalent lthread calls