Update esphome/components/statsd/statsd.cpp

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
switch back to %f
2026-01-19 01:26:24 -07:00 · 2026-01-18 18:54:44 -10:00 · 2026-01-18 18:50:02 -10:00 · 2026-01-16 11:35:55 -10:00 · 2026-01-16 11:35:52 -10:00 · 2026-01-14 15:27:04 -10:00
1 changed files with 12 additions and 4 deletions
--- a/esphome/components/statsd/statsd.cpp
+++ b/esphome/components/statsd/statsd.cpp
@@ -114,14 +114,22 @@ void StatsdComponent::update() {
    // This implies you can't explicitly set a gauge to a negative number without first setting it to zero.
    if (val < 0) {
      if (this->prefix_) {
-        out.append(str_sprintf("%s.", this->prefix_));
+        out.append(this->prefix_);
+        out.append(".");
      }
-      out.append(str_sprintf("%s:0|g\n", s.name));
+      out.append(s.name);
+      out.append(":0|g\n");
    }
    if (this->prefix_) {
-      out.append(str_sprintf("%s.", this->prefix_));
+      out.append(this->prefix_);
+      out.append(".");
    }
-    out.append(str_sprintf("%s:%f|g\n", s.name, val));
+    out.append(s.name);
+    // Buffer for ":" + value + "|g\n".
+    // %f with -DBL_MAX can produce up to 321 chars, plus ":" and "|g\n" (4) + null = 326
+    char val_buf[330];
+    buf_append_printf(val_buf, sizeof(val_buf), 0, ":%f|g\n", val);
+    out.append(val_buf);

    if (out.length() > SEND_THRESHOLD) {
      this->send_(&out);
Author	SHA1	Message	Date
J. Nick Koston	2166fb8db3	Update esphome/components/statsd/statsd.cpp Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>	2026-01-18 18:54:44 -10:00
J. Nick Koston	7650c91297	switch back to %f	2026-01-18 18:50:02 -10:00
J. Nick Koston	5934b88d2e	Merge remote-tracking branch 'upstream/dev' into statsd_stack	2026-01-16 11:35:55 -10:00
J. Nick Koston	5ce4b0c445	tweak	2026-01-16 11:35:52 -10:00
J. Nick Koston	0ea5d7abff	[statsd] Use direct appends and stack buffer instead of str_sprintf	2026-01-14 15:27:04 -10:00