2 #define I3__FILE__ "util.c"
17 #if defined(__OpenBSD__)
18 #include <sys/cdefs.h>
22 #include <yajl/yajl_version.h>
25 #define SN_API_NOT_YET_FROZEN 1
26 #include <libsn/sn-launcher.h>
28 int min(
int a,
int b) {
29 return (a < b ? a : b);
32 int max(
int a,
int b) {
33 return (a > b ? a : b);
37 return (x >= rect.
x &&
38 x <= (rect.
x + rect.
width) &&
56 uint32_t old_value = *destination;
58 return ((*destination = new_value) != old_value);
78 char *migratepath = name;
79 argv[0] = migratepath;
80 execvp(migratepath, argv);
86 char *dir = dirname(pathbuf);
87 sasprintf(&migratepath,
"%s/%s", dir, name);
88 argv[0] = migratepath;
89 execvp(migratepath, argv);
91 #if defined(__linux__)
94 if (readlink(
"/proc/self/exe", buffer, BUFSIZ) == -1) {
95 warn(
"could not read /proc/self/exe");
98 dir = dirname(buffer);
99 sasprintf(&migratepath,
"%s/%s", dir, name);
100 argv[0] = migratepath;
101 execvp(migratepath, argv);
104 warn(
"Could not start %s", name);
113 void check_error(xcb_connection_t *
conn, xcb_void_cookie_t cookie,
char *err_message) {
114 xcb_generic_error_t *error = xcb_request_check(conn, cookie);
116 fprintf(stderr,
"ERROR: %s (X error %d)\n", err_message , error->error_code);
117 xcb_disconnect(conn);
129 static glob_t globbuf;
130 char *head, *tail, *result;
132 tail = strchr(path,
'/');
133 head = strndup(path, tail ? tail - path : strlen(path));
135 int res = glob(head, GLOB_TILDE, NULL, &globbuf);
138 if (res == GLOB_NOMATCH || globbuf.gl_pathc != 1)
141 die(
"glob() failed");
143 head = globbuf.gl_pathv[0];
144 result =
scalloc(strlen(head) + (tail ? strlen(tail) : 0) + 1);
145 strncpy(result, head, strlen(head));
147 strncat(result, tail, strlen(tail));
160 return (stat(path, &buf) == 0);
171 for (num_args = 0; original[num_args] != NULL; num_args++) {
172 DLOG(
"original argument: \"%s\"\n", original[num_args]);
174 if (strcmp(original[num_args], argument) == 0)
178 char **result =
smalloc((num_args+2) *
sizeof(
char*));
179 memcpy(result, original, num_args *
sizeof(
char*));
180 result[num_args] = argument;
181 result[num_args+1] = NULL;
186 #define y(x, ...) yajl_gen_ ## x (gen, ##__VA_ARGS__)
187 #define ystr(str) yajl_gen_string(gen, (unsigned char*)str, strlen(str))
190 setlocale(LC_NUMERIC,
"C");
192 yajl_gen gen = yajl_gen_alloc(NULL);
194 yajl_gen gen = yajl_gen_alloc(NULL, NULL);
199 setlocale(LC_NUMERIC,
"");
201 const unsigned char *payload;
207 y(get_buf, &payload, &length);
220 int fd = open(filename, O_WRONLY | O_CREAT | O_TRUNC, S_IRUSR | S_IWUSR);
228 while (written < length) {
229 int n = write(fd, payload + written, length - written);
238 printf(
"write == 0?\n");
245 printf(
"written: %d of %zd\n", written, length);
247 printf(
"written: %d of %d\n", written, length);
253 printf(
"layout: %.*s\n", (
int)length, payload);
281 if (restart_filename != NULL) {
284 for (num_args = 0;
start_argv[num_args] != NULL; num_args++);
285 char **new_argv =
scalloc((num_args + 3) *
sizeof(
char*));
289 bool skip_next =
false;
290 for (
int i = 0; i < num_args; ++i) {
301 new_argv[write_index++] =
"--restart";
302 new_argv[write_index] = restart_filename;
312 #if defined(__OpenBSD__) || defined(__APPLE__)
319 void *memmem(
const void *l,
size_t l_len,
const void *s,
size_t s_len) {
320 register char *cur, *last;
321 const char *cl = (
const char *)l;
322 const char *cs = (
const char *)s;
325 if (l_len == 0 || s_len == 0)
334 return memchr(l, (
int)*cs, l_len);
337 last = (
char *)cl + l_len - s_len;
339 for (cur = (
char *)cl; cur <= last; cur++)
340 if (cur[0] == cs[0] && memcmp(cur, cs, s_len) == 0)
354 ev_child_stop(EV_A_ watcher);
356 if (!WIFEXITED(watcher->rstatus)) {
357 ELOG(
"ERROR: i3-nagbar did not exit normally.\n");
361 int exitcode = WEXITSTATUS(watcher->rstatus);
362 DLOG(
"i3-nagbar process exited with status %d\n", exitcode);
364 ELOG(
"ERROR: i3-nagbar could not be found. Is it correctly installed on your system?\n");
367 *((pid_t*)watcher->data) = -1;
376 pid_t *nagbar_pid = (pid_t*)watcher->data;
377 if (*nagbar_pid != -1) {
378 LOG(
"Sending SIGKILL (%d) to i3-nagbar with PID %d\n", SIGKILL, *nagbar_pid);
379 kill(*nagbar_pid, SIGKILL);
392 if (*nagbar_pid != -1) {
393 DLOG(
"i3-nagbar already running (PID %d), not starting again.\n", *nagbar_pid);
397 *nagbar_pid = fork();
398 if (*nagbar_pid == -1) {
399 warn(
"Could not fork()");
404 if (*nagbar_pid == 0)
407 DLOG(
"Starting i3-nagbar with PID %d\n", *nagbar_pid);
411 ev_child *child =
smalloc(
sizeof(ev_child));
413 child->data = nagbar_pid;
418 ev_cleanup *cleanup =
smalloc(
sizeof(ev_cleanup));
420 cleanup->data = nagbar_pid;
432 if (*nagbar_pid == -1)
435 if (kill(*nagbar_pid, SIGTERM) == -1)
436 warn(
"kill(configerror_nagbar) failed");
445 waitpid(*nagbar_pid, NULL, 0);
bool update_if_necessary(uint32_t *destination, const uint32_t new_value)
Updates *destination with new_value and returns true if it was changed or false if it was the same...
Stores a rectangle, for example the size of a window, the child window etc.
char * store_restart_layout(void)
const char * restart_state_path
static char ** append_argument(char **original, char *argument)
void restore_geometry(void)
Restores the geometry of each window by reparenting it to the root window at the position of its fram...
char * sstrdup(const char *str)
Safe-wrapper around strdup which exits if malloc returns NULL (meaning that there is no more memory a...
static void nagbar_exited(EV_P_ ev_child *watcher, int revents)
void * scalloc(size_t size)
Safe-wrapper around calloc which exits if malloc returns NULL (meaning that there is no more memory a...
char * resolve_tilde(const char *path)
This function resolves ~ in pathnames.
void kill_nagbar(pid_t *nagbar_pid, bool wait_for_it)
Kills the i3-nagbar process, if *nagbar_pid != -1.
void exec_i3_utility(char *name, char *argv[])
exec()s an i3 utility, for example the config file migration script or i3-nagbar. ...
bool rect_contains(Rect rect, uint32_t x, uint32_t y)
int sasprintf(char **strp, const char *fmt,...)
Safe-wrapper around asprintf which exits if it returns -1 (meaning that there is no more memory avail...
Rect rect_add(Rect a, Rect b)
void * smalloc(size_t size)
Safe-wrapper around malloc which exits if malloc returns NULL (meaning that there is no more memory a...
pid_t command_error_nagbar_pid
char * get_process_filename(const char *prefix)
Returns the name of a temporary file with the specified prefix.
struct ev_loop * main_loop
void start_nagbar(pid_t *nagbar_pid, char *argv[])
Starts an i3-nagbar instance with the given parameters.
static void nagbar_cleanup(EV_P_ ev_cleanup *watcher, int revent)
void ipc_shutdown(void)
Calls shutdown() on each socket and closes it.
pid_t config_error_nagbar_pid
bool path_exists(const char *path)
Checks if the given path exists by calling stat().
void i3_restart(bool forget_layout)
Restart i3 in-place appends -a to argument list to disable autostart.
void dump_node(yajl_gen gen, struct Con *con, bool inplace_restart)
void check_error(xcb_connection_t *conn, xcb_void_cookie_t cookie, char *err_message)
Checks a generic cookie for errors and quits with the given message if there was an error...