58 lines
1.3 KiB
C
58 lines
1.3 KiB
C
/*
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* i3bar - an xcb-based status- and ws-bar for i3
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*
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* © 2010-2011 Axel Wagner and contributors
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*
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* See file LICNSE for license information
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*
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*/
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#ifndef UTIL_H_
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#define UTIL_H_
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#include "queue.h"
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/* Get the maximum/minimum of x and y */
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#define MAX(x,y) ((x) > (y) ? (x) : (y))
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#define MIN(x,y) ((x) < (y) ? (x) : (y))
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/* Securely free p */
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#define FREE(p) do { \
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if (p != NULL) { \
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free(p); \
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p = NULL; \
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} \
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} while (0)
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/* Securely fee single-linked list */
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#define FREE_SLIST(l, type) do { \
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type *walk = SLIST_FIRST(l); \
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while (!SLIST_EMPTY(l)) { \
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SLIST_REMOVE_HEAD(l, slist); \
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FREE(walk); \
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walk = SLIST_FIRST(l); \
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} \
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} while (0)
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#endif
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/* Securely fee tail-queues */
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#define FREE_TAILQ(l, type) do { \
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type *walk = TAILQ_FIRST(l); \
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while (!TAILQ_EMPTY(l)) { \
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TAILQ_REMOVE(l, TAILQ_FIRST(l), tailq); \
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FREE(walk); \
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walk = TAILQ_FIRST(l); \
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} \
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} while (0)
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/* Use cool logging-macros */
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#define DLOG(fmt, ...) do { \
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if (config.verbose) { \
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printf("[%s:%d] " fmt, __FILE__, __LINE__, ##__VA_ARGS__); \
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} \
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} while(0)
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#define ELOG(fmt, ...) do { \
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fprintf(stderr, "[%s:%d] ERROR: " fmt, __FILE__, __LINE__, ##__VA_ARGS__); \
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} while(0)
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