0639a7d95b
This involves:
• Compiling with xcb-util instead of xcb-{atom,aux} (they merged the libraries)
• Not using xcb-{event,property} anymore (code removed upstream)
• Not using the predefined WINDOW, CARDINEL, … atoms (removed upstream)
• Using the new xcb_icccm_* data types/functions instead of just xcb_*
(for example xcb_icccm_get_wm_hints instead of xcb_get_wm_hints)
Also I refactored the atoms to use x-macros.
129 lines
3.6 KiB
C
129 lines
3.6 KiB
C
/*
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* vim:ts=8:expandtab
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*
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* i3 - an improved dynamic tiling window manager
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*
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* © 2009 Michael Stapelberg and contributors
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*
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* See file LICENSE for license information.
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*
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*/
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#include <err.h>
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#include "data.h"
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#ifndef _UTIL_H
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#define _UTIL_H
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#define die(...) errx(EXIT_FAILURE, __VA_ARGS__);
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#define exit_if_null(pointer, ...) { if (pointer == NULL) die(__VA_ARGS__); }
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#define STARTS_WITH(string, needle) (strncasecmp(string, needle, strlen(needle)) == 0)
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#define CIRCLEQ_NEXT_OR_NULL(head, elm, field) (CIRCLEQ_NEXT(elm, field) != CIRCLEQ_END(head) ? \
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CIRCLEQ_NEXT(elm, field) : NULL)
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#define CIRCLEQ_PREV_OR_NULL(head, elm, field) (CIRCLEQ_PREV(elm, field) != CIRCLEQ_END(head) ? \
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CIRCLEQ_PREV(elm, field) : NULL)
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#define FOR_TABLE(workspace) \
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for (int cols = 0; cols < (workspace)->cols; cols++) \
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for (int rows = 0; rows < (workspace)->rows; rows++)
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#define FREE(pointer) do { \
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if (pointer != NULL) { \
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free(pointer); \
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pointer = NULL; \
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} \
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} \
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while (0)
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#define CALL(obj, member, ...) obj->member(obj, ## __VA_ARGS__)
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int min(int a, int b);
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int max(int a, int b);
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bool rect_contains(Rect rect, uint32_t x, uint32_t y);
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Rect rect_add(Rect a, Rect b);
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/**
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* Updates *destination with new_value and returns true if it was changed or false
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* if it was the same
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*
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*/
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bool update_if_necessary(uint32_t *destination, const uint32_t new_value);
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/**
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* Safe-wrapper around malloc which exits if malloc returns NULL (meaning that
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* there is no more memory available)
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*
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*/
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void *smalloc(size_t size);
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/**
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* Safe-wrapper around calloc which exits if malloc returns NULL (meaning that
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* there is no more memory available)
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*
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*/
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void *scalloc(size_t size);
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/**
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* Safe-wrapper around realloc which exits if realloc returns NULL (meaning
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* that there is no more memory available).
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*
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*/
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void *srealloc(void *ptr, size_t size);
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/**
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* Safe-wrapper around strdup which exits if malloc returns NULL (meaning that
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* there is no more memory available)
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*
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*/
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char *sstrdup(const char *str);
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/**
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* Starts the given application by passing it through a shell. We use double
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* fork to avoid zombie processes. As the started application’s parent exits
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* (immediately), the application is reparented to init (process-id 1), which
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* correctly handles childs, so we don’t have to do it :-).
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*
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* The shell is determined by looking for the SHELL environment variable. If
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* it does not exist, /bin/sh is used.
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*
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*/
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void start_application(const char *command);
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/**
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* Checks a generic cookie for errors and quits with the given message if
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* there was an error.
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*
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*/
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void check_error(xcb_connection_t *conn, xcb_void_cookie_t cookie,
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char *err_message);
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/**
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* Converts the given string to UCS-2 big endian for use with
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* xcb_image_text_16(). The amount of real glyphs is stored in real_strlen, a
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* buffer containing the UCS-2 encoded string (16 bit per glyph) is
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* returned. It has to be freed when done.
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*
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*/
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char *convert_utf8_to_ucs2(char *input, int *real_strlen);
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/*
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* This function resolves ~ in pathnames.
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* It may resolve wildcards in the first part of the path, but if no match
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* or multiple matches are found, it just returns a copy of path as given.
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*
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*/
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char *resolve_tilde(const char *path);
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/*
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* Checks if the given path exists by calling stat().
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*
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*/
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bool path_exists(const char *path);
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/*
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* Restart i3 in-place
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* appends -a to argument list to disable autostart
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*
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*/
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void i3_restart(bool forget_layout);
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#endif
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