File: i3lock.h

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i3lock 2.15-2
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#ifndef _I3LOCK_H
#define _I3LOCK_H

/* This macro will only print debug output when started with --debug.
 * This is important because xautolock (for example) closes stdout/stderr by
 * default, so just printing something to stdout will lead to the data ending
 * up on the X11 socket (!). */
#define DEBUG(fmt, ...)                                            \
    do {                                                           \
        if (debug_mode) {                                          \
            fprintf(stderr, "[i3lock-debug] " fmt, ##__VA_ARGS__); \
        }                                                          \
    } while (0)

#endif