le_fd.h

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#ifndef LEGATO_FD_H_INCLUDE_GUARD
#define LEGATO_FD_H_INCLUDE_GUARD

#if !defined(le_fd_Close)       && \
    !defined(le_fd_Dup)         && \
    !defined(le_fd_Fcntl)       && \
    !defined(le_fd_Ioctl)       && \
    !defined(le_fd_MkFifo)      && \
    !defined(le_fd_MkPipe)      && \
    !defined(le_fd_Open)        && \
    !defined(le_fd_Read)        && \
    !defined(le_fd_Write)

//--------------------------------------------------------------------------------------------------
//--------------------------------------------------------------------------------------------------
int le_fd_Open
(
    const char* pathName,             
    int flags                         
);

//--------------------------------------------------------------------------------------------------
//--------------------------------------------------------------------------------------------------
int le_fd_Close
(
    int fd                            
);

//--------------------------------------------------------------------------------------------------
//--------------------------------------------------------------------------------------------------
ssize_t le_fd_Read
(
    int fd,                           
    void* bufPtr,                     
    size_t count                      
);

//--------------------------------------------------------------------------------------------------
//--------------------------------------------------------------------------------------------------
ssize_t le_fd_Write
(
    int fd,                           
    const void* bufPtr,               
    size_t count                      
);

//--------------------------------------------------------------------------------------------------
//--------------------------------------------------------------------------------------------------
int le_fd_Ioctl
(
    int fd,                           
    int request,                      
    void* bufPtr                      
);

//--------------------------------------------------------------------------------------------------
//--------------------------------------------------------------------------------------------------
int le_fd_MkFifo
(
    const char *pathname,       
    mode_t mode                 
);

//--------------------------------------------------------------------------------------------------
//--------------------------------------------------------------------------------------------------
int le_fd_MkPipe
(
    const char *pathname,       
    mode_t mode                 
);

//--------------------------------------------------------------------------------------------------
//--------------------------------------------------------------------------------------------------
int le_fd_Dup
(
    int oldfd                         
);

//--------------------------------------------------------------------------------------------------
//--------------------------------------------------------------------------------------------------
int le_fd_Fcntl
(
    int fd,                       
    int cmd,                      
    ... /* arg */                 
);

#else /* le_fd macros defined */

// If any le_fd macro is overridden, all le_fd macros must be overridden.

#if !defined(le_fd_Open)
#  error "File descriptor macros are overridden, but le_fd_Open not defined.  Please define it."
#endif
#if !defined(le_fd_Close)
#  error "File descriptor macros are overridden, but le_fd_Close not defined.  Please define it."
#endif
#if !defined(le_fd_Read)
#  error "File descriptor macros are overridden, but le_fd_Read not defined.  Please define it."
#endif
#if !defined(le_fd_Write)
#  error "File descriptor macros are overridden, but le_fd_Write not defined.  Please define it."
#endif
#if !defined(le_fd_Ioctl)
#  error "File descriptor macros are overridden, but le_fd_Ioctl not defined.  Please define it."
#endif
#if !defined(le_fd_MkFifo)
#  error "File descriptor macros are overridden, but le_fd_MkFifo not defined.  Please define it."
#endif
#if !defined(le_fd_MkPipe)
#  error "File descriptor macros are overridden, but le_fd_MkPipe not defined.  Please define it."
#endif
#if !defined(le_fd_Fcntl)
#  error "File descriptor macros are overridden, but le_fd_Fcntl not defined.  Please define it."
#endif
#if !defined(le_fd_Dup)
#  error "File descriptor macros are overridden, but le_fd_Dup not defined.  Please define it."
#endif

#endif /* end le_fd macros defined */

#endif /* end LEGATO_FD_H_INCLUDE_GUARD */