gri3-wm/i3bar/include/util.h

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/*
* vim:ts=4:sw=4:expandtab
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*
* i3 - an improved dynamic tiling window manager
* © 2009 Michael Stapelberg and contributors (see also: LICENSE)
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*
*/
#pragma once
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#include <config.h>
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#include "queue.h"
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/* Get the maximum/minimum of x and y */
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#undef MAX
#define MAX(x, y) ((x) > (y) ? (x) : (y))
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#undef MIN
#define MIN(x, y) ((x) < (y) ? (x) : (y))
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#define STARTS_WITH(string, len, needle) (((len) >= strlen((needle))) && strncasecmp((string), (needle), strlen((needle))) == 0)
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/* Securely free p */
#define FREE(p) \
do { \
free(p); \
p = NULL; \
} while (0)
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/* Securely free single-linked list */
#define FREE_SLIST(l, type) \
do { \
type *walk = SLIST_FIRST(l); \
while (!SLIST_EMPTY(l)) { \
SLIST_REMOVE_HEAD(l, slist); \
FREE(walk); \
walk = SLIST_FIRST(l); \
} \
} while (0)
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/* Securely free tail queue */
#define FREE_TAILQ(l, type) \
do { \
type *walk = TAILQ_FIRST(l); \
while (!TAILQ_EMPTY(l)) { \
TAILQ_REMOVE(l, TAILQ_FIRST(l), tailq); \
FREE(walk); \
walk = TAILQ_FIRST(l); \
} \
} while (0)
#if defined(DLOG)
#undef DLOG
#endif
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/* Use cool logging macros */
#define DLOG(fmt, ...) \
do { \
if (config.verbose) { \
printf("[%s:%d] " fmt, __FILE__, __LINE__, ##__VA_ARGS__); \
} \
} while (0)
/* We will include libi3.h which define its own version of ELOG.
* We want *our* version, so we undef the libi3 one. */
#if defined(ELOG)
#undef ELOG
#endif
#define ELOG(fmt, ...) \
do { \
fprintf(stderr, "[%s:%d] ERROR: " fmt, __FILE__, __LINE__, ##__VA_ARGS__); \
} while (0)