FdUtils.cxx File Reference

#include "FdUtils.hxx"
#include "nmranet_config.h"

Go to the source code of this file.

Macros
#define	PCALL_LOGERR(where, callfn, fd, args...)
	Performs a system call on an fd.

Detailed Description

Copyright

Copyright (c) 2023, Balazs Racz All rights reserved.

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

• Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
• Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.

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Helper functions for dealing with posix fds.

Author

Balazs Racz

Date

29 Dec 2023

Definition in file FdUtils.cxx.

Macro Definition Documentation

PCALL_LOGERR

#define PCALL_LOGERR	(		where,
			callfn,
			fd,
			args...
	)

Value:

    do                                                                         \
    {                                                                          \
        int ret = callfn(fd, args);                                            \
        if (ret < 0)                                                           \
        {                                                                      \
            char buf[256];                                                     \
            strerror_r(errno, buf, sizeof(buf));                               \
            LOG_ERROR("fd %d %s: %s", fd, where, buf);                         \
        }                                                                      \
    } while (0)

Performs a system call on an fd.

If an error is returned, prints the error using the log mechanism, but otherwise ignores it.

Parameters

where	user-readable text printed with the error, e.g. "setsockopt"
callfn	system call, like setsockopt
fd	file descriptor (int)
args...	all other arguments to callfn

Definition at line 52 of file FdUtils.cxx.