Import and compile code for article 6.5

1 files changed, 42 insertions, 0 deletions

diff --git a/sos-code-article6.5/sos/errno.h b/sos-code-article6.5/sos/errno.h
new file mode 100644
index 0000000..fda5ed8
--- /dev/null
+++ b/sos-code-article6.5/sos/errno.h
@@ -0,0 +1,42 @@
+/* Copyright (C) 2004  The SOS Team
+
+   This program is free software; you can redistribute it and/or
+   modify it under the terms of the GNU General Public License
+   as published by the Free Software Foundation; either version 2
+   of the License, or (at your option) any later version.
+   
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+   
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
+   USA. 
+*/
+#ifndef _SOS_ERRNO_H_
+#define _SOS_ERRNO_H_
+
+/**
+ * @file errno.h
+ *
+ * SOS return value codes and errors.
+ */
+
+/* Positive values of the error codes */
+#define SOS_OK     0   /* No error */
+#define SOS_EINVAL 1   /* Invalid argument */
+#define SOS_ENOSUP 2   /* Operation not supported */
+#define SOS_ENOMEM 3   /* No available memory */
+#define SOS_EBUSY  4   /* Object or device still in use */
+#define SOS_EINTR  5   /* Wait/Sleep has been interrupted */
+#define SOS_EPERM  6   /* Mutex/files ownership error */
+#define SOS_EFATAL 255 /* Internal fatal error */
+
+/* A negative value means that an error occured.  For
+ *  example -SOS_EINVAL means that the error was "invalid
+ * argument" */
+typedef int sos_ret_t;
+
+#endif /* _SOS_ERRNO_H_ */