gri3-wm/i3bar/include/util.h

58 lines
1.3 KiB
C

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