1 files changed, 65 insertions, 0 deletions
diff --git a/condvar.c b/condvar.c
new file mode 100644
index 0000000..871f50d
--- /dev/null
+++ b/condvar.c
@@ -0,0 +1,65 @@
+/*
+ * condvar.c
+ *
+ * Description:
+ * This translation unit implements condition variables and their primitives.
+ */
+
+#include "pthread.h"
+
+int
+pthread_cond_init(pthread_condattr_t *attr)
+{
+  if (attr == NULL)
+    {
+      /* This is disallowed. */
+      return EINVAL;
+    }
+
+  attr->ptr = malloc(sizeof(_pthread_condattr_t));
+  if (attr->ptr == NULL)
+    {
+      return ENOMEM;
+    }
+
+  /* FIXME: fill out the structure with default values. */
+  return 0;
+}
+
+int
+pthread_condattr_destroy(pthread_condattr_t *attr)
+{
+  if (is_attr(attr) != 0)
+    {
+      return EINVAL;
+    }
+  
+  free(attr->ptr);
+  return 0;
+}
+
+int
+pthread_condattr_setpshared(pthread_condattr_t *attr,
+			    int pshared)
+{
+  if (is_attr(attr) != 0)
+    {
+      return EINVAL;
+    }
+
+  (_pthread_condattr_t *) (attr->ptr)->pshared = pshared;
+  return 0;
+}
+
+int
+pthread_condattr_getpshared(pthread_condattr_t *attr,
+			    int *pshared)
+{
+  if (is_attr(attr) != 0)
+    {
+      return EINVAL;
+    }
+
+  *pshared = (_pthread_condattr_t *) (attr->ptr)->pshared;
+  return 0;
+}