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Editorial Team
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Asked: 2026-05-27T18:25:55+00:00

I intend to use syslog for logging in an application. I need to be

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I intend to use syslog for logging in an application. I need to be able to disable logging, at compile time, perhaps using a macro. Is this possible to do with the syslog facilities, or do I need to wrap syslog in my own macros/functions? The ability to disable/enable log messages based on their priority is a plus.

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1 Answer

  1. Editorial Team

    Maybe you could wrap a call to setlogmask in define block.

    setlogmask sets a mask (the “logmask”) that determines which future
    syslog calls shall be ignored. If a program has not called setlogmask,
    syslog doesn’t ignore any calls. You can use setlogmask to specify
    that messages of particular priorities shall be ignored in the future.

    something like this :

    #ifdef LOG_LEVEL1
setlogmask (LOG_UPTO (LOG_NOTICE));
#endif
#ifdef LOG_LEVEL2
setlogmask (LOG_UPTO (LOG_WARNING));
#endif
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