Source: ../../libcomm/comm_private.h


 
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/*
 * Copyright (c) 2001
 * YOID Project.
 * University of Southern California/Information Sciences Institute.
 * All rights reserved.
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/*
 *  $XORP: xorp/libcomm/comm_private.h,v 1.6 2007/11/16 22:29:18 pavlin Exp $
 */

#ifndef __LIBCOMM_COMM_PRIVATE_H__
#define __LIBCOMM_COMM_PRIVATE_H__


/*
 * COMM socket library private include header.
 */

/*
 * Constants definitions
 */

/*
 * Structures, typedefs and macros
 */

/*
 * Global variables
 */

extern int _comm_serrno;

/*
 * Global functions prototypes
 */
__BEGIN_DECLS

/**
 * Log an error if an IPv6 specific method is called when IPv6 is not
 * present.
 *
 * An error message is output via XLOG_ERROR().
 * Set an appropriate error code relevant to the underlying system.
 * Note: This is currently done with knowledge of how the error code is
 * stored internally, which is a design bug (we're not thread friendly).
 * This function is variadic so it can be used to remove unused variable
 * warnings in non-IPv6 code as well as log the error.
 *
 * @param method C-style string denoting the ipv6 function called.
 */
void comm_sock_no_ipv6(const char* method, ...);

/**
 * Fetch and record the last socket layer error code from the underlying
 * system.
 *
 * Note: Currently not thread-safe. Internal use only.
 * This is done using a function to facilitate using explicit
 * Thread Local Storage (TLS) at a later time.
 */
void _comm_set_serrno(void);

__END_DECLS


#endif /* __LIBCOMM_COMM_PRIVATE_H__ */

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