old c,cc examples

1 files changed, 43 insertions, 0 deletions

diff --git a/c,cc/thread_test.c b/c,cc/thread_test.c
new file mode 100644
index 0000000..e1ba9f3
--- /dev/null
+++ b/c,cc/thread_test.c
@@ -0,0 +1,43 @@
+#include <stdio.h>
+#include <pthread.h>
+#include <stdlib.h>
+
+
+void saying_pthread_name(void* ptr);
+int value=1;
+
+int
+main(void)
+{
+  pthread_t wthread, bthread, rthread;
+  char* wname = "white";
+  char* bname = "black";
+  char* rname = "red";
+  pthread_attr_t* pthread_attr_default = NULL;
+
+  pthread_create(&wthread, pthread_attr_default,
+      (void*)&saying_pthread_name, (void*) wname);
+
+  pthread_create(&bthread, pthread_attr_default,
+     (void*)&saying_pthread_name, (void*) bname);
+
+  pthread_create(&rthread, pthread_attr_default,
+     (void*)&saying_pthread_name, (void*) rname);
+
+  pthread_join(wthread,NULL);
+  //printf("%d\n", value);
+  pthread_join(rthread,NULL);
+  pthread_join(bthread,NULL);
+
+  exit(0);
+}
+
+void
+saying_pthread_name(void* ptr)
+{
+  char* message;
+  message = (char*)ptr;
+  printf("I am a %s pthread and the value is %d \n", message, value);
+  value = value+1;
+}
+