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authorRoland McGrath <roland@gnu.org>2007-05-15 20:34:30 +0000
committerRoland McGrath <roland@gnu.org>2007-05-15 20:34:30 +0000
commit18b86433d08e3df2a2820ede370d52bbda55eb74 (patch)
tree59347eb227c205dbf728f7177212f81a9ca48467 /sysdeps/unix/sysv/linux/tst-getcpu.c
parente169ea9b569d9e9a60bde4aebe960591bacaf4ef (diff)
Updated to fedora-glibc-20070515T2025
Diffstat (limited to 'sysdeps/unix/sysv/linux/tst-getcpu.c')
-rw-r--r--sysdeps/unix/sysv/linux/tst-getcpu.c54
1 files changed, 54 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/tst-getcpu.c b/sysdeps/unix/sysv/linux/tst-getcpu.c
new file mode 100644
index 0000000000..bf3cb57dd8
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/tst-getcpu.c
@@ -0,0 +1,54 @@
+#include <errno.h>
+#include <stdio.h>
+#include <sched.h>
+#include <unistd.h>
+
+
+static int
+do_test (void)
+{
+ cpu_set_t cs;
+ if (sched_getaffinity (getpid (), sizeof (cs), &cs) != 0)
+ {
+ printf ("getaffinity failed: %m\n");
+ return 1;
+ }
+
+ int result = 0;
+ int cpu = 0;
+ while (CPU_COUNT (&cs) != 0)
+ {
+ if (CPU_ISSET (cpu, &cs))
+ {
+ cpu_set_t cs2;
+ CPU_ZERO (&cs2);
+ CPU_SET (cpu, &cs2);
+ if (sched_setaffinity (getpid (), sizeof (cs2), &cs2) != 0)
+ {
+ printf ("setaffinity(%d) failed: %m\n", cpu);
+ result = 1;
+ }
+ else
+ {
+ int cpu2 = sched_getcpu ();
+ if (cpu2 == -1 && errno == ENOSYS)
+ {
+ puts ("getcpu syscall not implemented");
+ return 0;
+ }
+ if (cpu2 != cpu)
+ {
+ printf ("getcpu results %d not possible\n", cpu2);
+ result = 1;
+ }
+ }
+ CPU_CLR (cpu, &cs);
+ }
+ ++cpu;
+ }
+
+ return result;
+}
+
+#define TEST_FUNCTION do_test ()
+#include <test-skeleton.c>