1 files changed, 36 insertions, 0 deletions
diff --git a/linuxthreads/Examples/ex1.c b/linuxthreads/Examples/ex1.c
new file mode 100644
index 0000000..c399fab
--- /dev/null
+++ b/linuxthreads/Examples/ex1.c
@@ -0,0 +1,36 @@
+/* Creates two threads, one printing 10000 "a"s, the other printing
+   10000 "b"s.
+   Illustrates: thread creation, thread joining. */
+
+#include <stddef.h>
+#include <stdio.h>
+#include <unistd.h>
+#include "pthread.h"
+
+void * process(void * arg)
+{
+  int i;
+  fprintf(stderr, "Starting process %s\n", (char *) arg);
+  for (i = 0; i < 10000; i++) {
+    write(1, (char *) arg, 1);
+  }
+  return NULL;
+}
+
+int main()
+{
+  int retcode;
+  pthread_t th_a, th_b;
+  void * retval;
+
+  retcode = pthread_create(&th_a, NULL, process, "a");
+  if (retcode != 0) fprintf(stderr, "create a failed %d\n", retcode);
+  retcode = pthread_create(&th_b, NULL, process, "b");
+  if (retcode != 0) fprintf(stderr, "create b failed %d\n", retcode);
+  retcode = pthread_join(th_a, &retval);
+  if (retcode != 0) fprintf(stderr, "join a failed %d\n", retcode);
+  retcode = pthread_join(th_b, &retval);
+  if (retcode != 0) fprintf(stderr, "join b failed %d\n", retcode);
+  return 0;
+}
+