4 * i3 - an improved dynamic tiling window manager
6 * © 2009 Michael Stapelberg and contributors
8 * See file LICENSE for license information.
18 #define die(...) errx(EXIT_FAILURE, __VA_ARGS__);
19 #define exit_if_null(pointer, ...) { if (pointer == NULL) die(__VA_ARGS__); }
20 #define STARTS_WITH(string, needle) (strncasecmp(string, needle, strlen(needle)) == 0)
21 #define CIRCLEQ_NEXT_OR_NULL(head, elm, field) (CIRCLEQ_NEXT(elm, field) != CIRCLEQ_END(head) ? \
22 CIRCLEQ_NEXT(elm, field) : NULL)
23 #define CIRCLEQ_PREV_OR_NULL(head, elm, field) (CIRCLEQ_PREV(elm, field) != CIRCLEQ_END(head) ? \
24 CIRCLEQ_PREV(elm, field) : NULL)
25 #define FOR_TABLE(workspace) \
26 for (int cols = 0; cols < (workspace)->cols; cols++) \
27 for (int rows = 0; rows < (workspace)->rows; rows++)
28 #define FREE(pointer) do { \
29 if (pointer != NULL) { \
36 #define CALL(obj, member, ...) obj->member(obj, ## __VA_ARGS__)
38 int min(int a, int b);
39 int max(int a, int b);
40 bool rect_contains(Rect rect, uint32_t x, uint32_t y);
41 Rect rect_add(Rect a, Rect b);
44 * Updates *destination with new_value and returns true if it was changed or false
48 bool update_if_necessary(uint32_t *destination, const uint32_t new_value);
51 * Safe-wrapper around malloc which exits if malloc returns NULL (meaning that
52 * there is no more memory available)
55 void *smalloc(size_t size);
58 * Safe-wrapper around calloc which exits if malloc returns NULL (meaning that
59 * there is no more memory available)
62 void *scalloc(size_t size);
65 * Safe-wrapper around realloc which exits if realloc returns NULL (meaning
66 * that there is no more memory available).
69 void *srealloc(void *ptr, size_t size);
72 * Safe-wrapper around strdup which exits if malloc returns NULL (meaning that
73 * there is no more memory available)
76 char *sstrdup(const char *str);
79 * Starts the given application by passing it through a shell. We use double
80 * fork to avoid zombie processes. As the started application’s parent exits
81 * (immediately), the application is reparented to init (process-id 1), which
82 * correctly handles childs, so we don’t have to do it :-).
84 * The shell is determined by looking for the SHELL environment variable. If
85 * it does not exist, /bin/sh is used.
88 void start_application(const char *command);
91 * Checks a generic cookie for errors and quits with the given message if
95 void check_error(xcb_connection_t *conn, xcb_void_cookie_t cookie,
99 * Converts the given string to UCS-2 big endian for use with
100 * xcb_image_text_16(). The amount of real glyphs is stored in real_strlen, a
101 * buffer containing the UCS-2 encoded string (16 bit per glyph) is
102 * returned. It has to be freed when done.
105 char *convert_utf8_to_ucs2(char *input, int *real_strlen);
108 * This function resolves ~ in pathnames.
109 * It may resolve wildcards in the first part of the path, but if no match
110 * or multiple matches are found, it just returns a copy of path as given.
113 char *resolve_tilde(const char *path);
116 * Checks if the given path exists by calling stat().
119 bool path_exists(const char *path);
122 * Restart i3 in-place
123 * appends -a to argument list to disable autostart
126 void i3_restart(bool forget_layout);