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fix: fix periodic freeze in print stack

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This commit is contained in:
Daniel Hammer
2026-05-14 11:52:28 +02:00
parent bb12aeb9b9
commit eac8feb62c
3 changed files with 126 additions and 52 deletions
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programs/src/printd/main.cpp
+26 -3
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@@ -16,6 +16,12 @@ extern "C" {
using namespace print;
static constexpr bool ENABLE_BACKGROUND_PROBE = false;
static constexpr uint64_t DAEMON_STATE_HEARTBEAT_MS = 15000;
static char g_last_state_phase[32] = {};
static char g_last_state_subject[128] = {};
static char g_last_state_detail[256] = {};
static uint64_t g_last_state_write_ms = 0;
enum class ClaimResult {
None,
@@ -25,6 +31,23 @@ enum class ClaimResult {
static void write_daemon_state(const char* phase, const char* subject = nullptr,
const char* detail = nullptr) {
const char* safe_phase = phase ? phase : "";
const char* safe_subject = subject ? subject : "";
const char* safe_detail = detail ? detail : "";
uint64_t now_ms = montauk::get_milliseconds();
if (g_last_state_write_ms != 0
&& strcmp(g_last_state_phase, safe_phase) == 0
&& strcmp(g_last_state_subject, safe_subject) == 0
&& strcmp(g_last_state_detail, safe_detail) == 0
&& now_ms - g_last_state_write_ms < DAEMON_STATE_HEARTBEAT_MS)
return;
safe_copy(g_last_state_phase, sizeof(g_last_state_phase), safe_phase);
safe_copy(g_last_state_subject, sizeof(g_last_state_subject), safe_subject);
safe_copy(g_last_state_detail, sizeof(g_last_state_detail), safe_detail);
g_last_state_write_ms = now_ms;
char now[32] = {};
now_string(now, sizeof(now));
@@ -33,9 +56,9 @@ static void write_daemon_state(const char* phase, const char* subject = nullptr,
"time=%s\npid=%d\nphase=%s\nsubject=%s\ndetail=%s\n",
now,
montauk::getpid(),
phase ? phase : "",
subject ? subject : "",
detail ? detail : "");
safe_phase,
safe_subject,
safe_detail);
if (n < 0) return;
write_text_file_atomic(SPOOL_DAEMON_STATE_PATH, buf);
}