From a3cc4a368ebf2b3b4076a273aca0413c3fd677b1 Mon Sep 17 00:00:00 2001
From: Andy Green <andy@warmcat.com>
Date: Mon, 11 Sep 2017 10:23:30 +0800
Subject: [PATCH] esp32: report heap changes
---
lib/context.c | 4 ++++
lib/lws-plat-esp32.c | 16 ++++++++++++++++
lib/private-libwebsockets.h | 4 ++++
3 files changed, 24 insertions(+)
diff --git a/lib/context.c b/lib/context.c
index e11af453..09785706 100644
--- a/lib/context.c
+++ b/lib/context.c
@@ -798,6 +798,10 @@ lws_create_context(struct lws_context_creation_info *info)
else
context->pt_serv_buf_size = 4096;
+#if defined(LWS_WITH_ESP32)
+ context->last_free_heap = esp_get_free_heap_size();
+#endif
+
/* default to just the platform fops implementation */
context->fops_platform.LWS_FOP_OPEN = _lws_plat_file_open;
diff --git a/lib/lws-plat-esp32.c b/lib/lws-plat-esp32.c
index 48688e71..2ba065b3 100644
--- a/lib/lws-plat-esp32.c
+++ b/lib/lws-plat-esp32.c
@@ -117,6 +117,22 @@ _lws_plat_service_tsi(struct lws_context *context, int timeout_ms, int tsi)
pt = &context->pt[tsi];
lws_stats_atomic_bump(context, pt, LWSSTATS_C_SERVICE_ENTRY, 1);
+ {
+ unsigned long m = lws_now_secs();
+
+ if (m > context->time_last_state_dump) {
+ context->time_last_state_dump = m;
+ n = esp_get_free_heap_size();
+ if (n != context->last_free_heap) {
+ if (n > context->last_free_heap)
+ lwsl_info(" heap :%d (+%d)\n", n, n - context->last_free_heap);
+ else
+ lwsl_info(" heap :%d (-%d)\n", n, context->last_free_heap - n);
+ context->last_free_heap = n;
+ }
+ }
+ }
+
if (timeout_ms < 0)
goto faked_service;
diff --git a/lib/private-libwebsockets.h b/lib/private-libwebsockets.h
index ee2edd36..715d60b1 100644
--- a/lib/private-libwebsockets.h
+++ b/lib/private-libwebsockets.h
@@ -998,6 +998,10 @@ struct lws_context {
uint64_t last_dump;
int updated;
#endif
+#if defined(LWS_WITH_ESP32)
+ unsigned long time_last_state_dump;
+ uint32_t last_free_heap;
+#endif
int max_fds;
#if defined(LWS_USE_LIBEV) || defined(LWS_USE_LIBUV) || defined(LWS_USE_LIBEVENT)
--
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