X-Git-Url: https://git.lttng.org/?p=urcu.git;a=blobdiff_plain;f=tests%2Ftest_perthreadlock.c;h=b573fb08ed5d351bcccdec622563c8f7ac8868bb;hp=8e0800f4b1a48408ae09e54dc0efecdafee88a53;hb=a50a7b4333a5039f1471c0b7cfbfb3d6dc5379fb;hpb=b4e52e3e9e563d38607a8e0ab0aa72e7ab2b47b4

diff --git a/tests/test_perthreadlock.c b/tests/test_perthreadlock.c
index 8e0800f..b573fb0 100644
--- a/tests/test_perthreadlock.c
+++ b/tests/test_perthreadlock.c
@@ -21,6 +21,7 @@
  */
 
 #define _GNU_SOURCE
+#include "../config.h"
 #include <stdio.h>
 #include <pthread.h>
 #include <stdlib.h>
@@ -32,6 +33,7 @@
 #include <assert.h>
 #include <sys/syscall.h>
 #include <sched.h>
+#include <errno.h>
 
 #include <urcu/arch.h>
 
@@ -81,6 +83,9 @@ static unsigned long duration;
 /* read-side C.S. duration, in loops */
 static unsigned long rduration;
 
+/* write-side C.S. duration, in loops */
+static unsigned long wduration;
+
 static inline void loop_sleep(unsigned long l)
 {
 	while(l-- != 0)
@@ -101,6 +106,12 @@ static int use_affinity = 0;
 
 pthread_mutex_t affinity_mutex = PTHREAD_MUTEX_INITIALIZER;
 
+#ifndef HAVE_CPU_SET_T
+typedef unsigned long cpu_set_t;
+# define CPU_ZERO(cpuset) do { *(cpuset) = 0; } while(0)
+# define CPU_SET(cpu, cpuset) do { *(cpuset) |= (1UL << (cpu)); } while(0)
+#endif
+
 static void set_affinity(void)
 {
 	cpu_set_t mask;
@@ -110,6 +121,7 @@ static void set_affinity(void)
 	if (!use_affinity)
 		return;
 
+#if HAVE_SCHED_SETAFFINITY
 	ret = pthread_mutex_lock(&affinity_mutex);
 	if (ret) {
 		perror("Error in pthread mutex lock");
@@ -123,7 +135,12 @@ static void set_affinity(void)
 	}
 	CPU_ZERO(&mask);
 	CPU_SET(cpu, &mask);
+#if SCHED_SETAFFINITY_ARGS == 2
+	sched_setaffinity(0, &mask);
+#else
 	sched_setaffinity(0, sizeof(mask), &mask);
+#endif
+#endif /* HAVE_SCHED_SETAFFINITY */
 }
 
 /*
@@ -225,6 +242,8 @@ void *thr_writer(void *data)
 		}
 		test_array.a = 0;
 		test_array.a = 8;
+		if (unlikely(wduration))
+			loop_sleep(wduration);
 		for (tidx = (long)nr_readers - 1; tidx >= 0; tidx--) {
 			pthread_mutex_unlock(&per_thread_lock[tidx].lock);
 		}
@@ -249,6 +268,7 @@ void show_usage(int argc, char **argv)
 #endif
 	printf(" [-d delay] (writer period (us))");
 	printf(" [-c duration] (reader C.S. duration (in loops))");
+	printf(" [-e duration] (writer C.S. duration (in loops))");
 	printf(" [-v] (verbose output)");
 	printf(" [-a cpu#] [-a cpu#]... (affinity)");
 	printf("\n");
@@ -323,6 +343,13 @@ int main(int argc, char **argv)
 			}
 			wdelay = atol(argv[++i]);
 			break;
+		case 'e':
+			if (argc < i + 2) {
+				show_usage(argc, argv);
+				return -1;
+			}
+			wduration = atol(argv[++i]);
+			break;
 		case 'v':
 			verbose_mode = 1;
 			break;
@@ -382,10 +409,10 @@ int main(int argc, char **argv)
 
 	printf_verbose("total number of reads : %llu, writes %llu\n", tot_reads,
 	       tot_writes);
-	printf("SUMMARY %-25s testdur %4lu nr_readers %3u rdur %6lu "
+	printf("SUMMARY %-25s testdur %4lu nr_readers %3u rdur %6lu wdur %6lu "
 		"nr_writers %3u "
 		"wdelay %6lu nr_reads %12llu nr_writes %12llu nr_ops %12llu\n",
-		argv[0], duration, nr_readers, rduration,
+		argv[0], duration, nr_readers, rduration, wduration,
 		nr_writers, wdelay, tot_reads, tot_writes,
 		tot_reads + tot_writes);