/* Global variables for child_*() */
i3bar_child child;
-/* stdin- and sigchild-watchers */
+/* stdin- and SIGCHLD-watchers */
ev_io *stdin_io;
ev_child *child_sig;
parser_ctx parser_context;
-/* The buffer statusline points to */
struct statusline_head statusline_head = TAILQ_HEAD_INITIALIZER(statusline_head);
+/* Used temporarily while reading a statusline */
+struct statusline_head statusline_buffer = TAILQ_HEAD_INITIALIZER(statusline_buffer);
int child_stdin;
/*
- * Clears all blocks from the statusline structure in memory and frees their
- * associated resources.
+ * Remove all blocks from the given statusline.
+ * If free_resources is set, the fields of each status block will be free'd.
*/
-static void clear_status_blocks() {
+static void clear_statusline(struct statusline_head *head, bool free_resources) {
struct status_block *first;
- while (!TAILQ_EMPTY(&statusline_head)) {
- first = TAILQ_FIRST(&statusline_head);
- I3STRING_FREE(first->full_text);
- TAILQ_REMOVE(&statusline_head, first, blocks);
+ while (!TAILQ_EMPTY(head)) {
+ first = TAILQ_FIRST(head);
+ if (free_resources) {
+ I3STRING_FREE(first->full_text);
+ FREE(first->color);
+ FREE(first->name);
+ FREE(first->instance);
+ }
+
+ TAILQ_REMOVE(head, first, blocks);
free(first);
}
}
+static void copy_statusline(struct statusline_head *from, struct statusline_head *to) {
+ struct status_block *current;
+ TAILQ_FOREACH(current, from, blocks) {
+ struct status_block *new_block = smalloc(sizeof(struct status_block));
+ memcpy(new_block, current, sizeof(struct status_block));
+ TAILQ_INSERT_TAIL(to, new_block, blocks);
+ }
+}
+
/*
* Replaces the statusline in memory with an error message. Pass a format
* string and format parameters as you would in `printf'. The next time
* the space allocated for the statusline.
*/
__attribute__((format(printf, 1, 2))) static void set_statusline_error(const char *format, ...) {
- clear_status_blocks();
+ clear_statusline(&statusline_head, true);
char *message;
va_list args;
}
/*
- * Stop and free() the stdin- and sigchild-watchers
+ * Stop and free() the stdin- and SIGCHLD-watchers
*
*/
void cleanup(void) {
/*
* The start of a new array is the start of a new status line, so we clear all
- * previous entries.
- *
+ * previous entries from the buffer.
*/
static int stdin_start_array(void *context) {
- struct status_block *first;
- while (!TAILQ_EMPTY(&statusline_head)) {
- first = TAILQ_FIRST(&statusline_head);
- I3STRING_FREE(first->full_text);
- FREE(first->color);
- FREE(first->name);
- FREE(first->instance);
- TAILQ_REMOVE(&statusline_head, first, blocks);
- free(first);
- }
+ // the blocks are still used by statusline_head, so we won't free the
+ // resources here.
+ clear_statusline(&statusline_buffer, false);
return 1;
}
static int stdin_string(void *context, const unsigned char *val, size_t len) {
parser_ctx *ctx = context;
if (strcasecmp(ctx->last_map_key, "full_text") == 0) {
- ctx->block.full_text = i3string_from_utf8_with_length((const char *)val, len);
+ ctx->block.full_text = i3string_from_markup_with_length((const char *)val, len);
}
if (strcasecmp(ctx->last_map_key, "color") == 0) {
sasprintf(&(ctx->block.color), "%.*s", len, val);
ctx->block.align = ALIGN_LEFT;
}
} else if (strcasecmp(ctx->last_map_key, "min_width") == 0) {
- i3String *text = i3string_from_utf8_with_length((const char *)val, len);
+ i3String *text = i3string_from_markup_with_length((const char *)val, len);
ctx->block.min_width = (uint32_t)predict_text_width(text);
i3string_free(text);
}
return 1;
}
+/*
+ * When a map is finished, we have an entire status block.
+ * Move it from the parser's context to the statusline buffer.
+ */
static int stdin_end_map(void *context) {
parser_ctx *ctx = context;
struct status_block *new_block = smalloc(sizeof(struct status_block));
new_block->full_text = i3string_from_utf8("SPEC VIOLATION: full_text is NULL!");
if (new_block->urgent)
ctx->has_urgent = true;
- TAILQ_INSERT_TAIL(&statusline_head, new_block, blocks);
+ TAILQ_INSERT_TAIL(&statusline_buffer, new_block, blocks);
return 1;
}
+/*
+ * When an array is finished, we have an entire statusline.
+ * Copy it from the buffer to the actual statusline.
+ */
static int stdin_end_array(void *context) {
+ DLOG("copying statusline_buffer to statusline_head\n");
+ clear_statusline(&statusline_head, true);
+ copy_statusline(&statusline_buffer, &statusline_head);
+
DLOG("dumping statusline:\n");
struct status_block *current;
TAILQ_FOREACH(current, &statusline_head, blocks) {
buffer[length - 1] = '\0';
else
buffer[length] = '\0';
- first->full_text = i3string_from_utf8(buffer);
+ first->full_text = i3string_from_markup(buffer);
}
static bool read_json_input(unsigned char *input, int length) {
}
/*
- * We received a sigchild, meaning, that the child-process terminated.
- * We simply free the respective data-structures and don't care for input
+ * We received a SIGCHLD, meaning, that the child process terminated.
+ * We simply free the respective data structures and don't care for input
* anymore
*
*/
}
/*
- * Start a child-process with the specified command and reroute stdin.
+ * Start a child process with the specified command and reroute stdin.
* We actually start a $SHELL to execute the command so we don't have to care
* about arguments and such.
*
}
/*
- * kill()s the child-process (if any). Called when exit()ing.
+ * kill()s the child process (if any). Called when exit()ing.
*
*/
void kill_child_at_exit(void) {
}
/*
- * kill()s the child-process (if existent) and closes and
- * free()s the stdin- and sigchild-watchers
+ * kill()s the child process (if existent) and closes and
+ * free()s the stdin- and SIGCHLD-watchers
*
*/
void kill_child(void) {
}
/*
- * Sends a SIGSTOP to the child-process (if existent)
+ * Sends a SIGSTOP to the child process (if existent)
*
*/
void stop_child(void) {
}
/*
- * Sends a SIGCONT to the child-process (if existent)
+ * Sends a SIGCONT to the child process (if existent)
*
*/
void cont_child(void) {
projects / i3 / i3 / blobdiff