Program for testing concurrent access to syslogd.

tests/tst-syslogd.c

@@ -0,0 +1,44 @@
+/*
+ *  tst-syslogd.c - tests concurrent threads calling syslog
+ *
+ *  build with: gcc -Wall tst-syslogd.c -lpthread
+ */
+
+#include <stdio.h>
+#include <pthread.h>
+#include <syslog.h>
+#include <unistd.h>
+
+void *log_func(void *arg)
+{
+	int i;
+	int thrid = (int)arg;
+
+	openlog(NULL, LOG_PERROR | LOG_PID, LOG_USER);
+	for (i = 0; i < 10; i++) {
+		syslog(LOG_DEBUG, "thread %i iter %i\n", thrid, i);
+		sleep(thrid); /* this mixes things up a bit */
+	}
+	closelog();
+
+	return NULL;
+}
+
+int main(int argc, char **argv)
+{
+	pthread_t thr1, thr2, thr3;
+	int id1 = 1;
+	int id2 = 2;
+	int id3 = 3;
+
+	pthread_create(&thr1, NULL, log_func, (void *)id1);
+	pthread_create(&thr2, NULL, log_func, (void *)id2);
+	pthread_create(&thr3, NULL, log_func, (void *)id3);
+
+	pthread_join(thr1, NULL);
+	pthread_join(thr2, NULL);
+	pthread_join(thr3, NULL);
+
+	return 0;
+}
+