Update libwebsockets to 3.1 (plus UWP patch)

thirdparty/libwebsockets/lib/core/alloc.c

@@ -0,0 +1,92 @@
+#include "core/private.h"
+
+#if defined(LWS_PLAT_OPTEE)
+
+#define TEE_USER_MEM_HINT_NO_FILL_ZERO       0x80000000
+
+void *__attribute__((weak))
+	TEE_Malloc(uint32_t size, uint32_t hint)
+{
+	return NULL;
+}
+void *__attribute__((weak))
+	TEE_Realloc(void *buffer, uint32_t newSize)
+{
+	return NULL;
+}
+void __attribute__((weak))
+	TEE_Free(void *buffer)
+{
+}
+
+void *lws_realloc(void *ptr, size_t size, const char *reason)
+{
+	return TEE_Realloc(ptr, size);
+}
+
+void *lws_malloc(size_t size, const char *reason)
+{
+	return TEE_Malloc(size, TEE_USER_MEM_HINT_NO_FILL_ZERO);
+}
+
+void lws_free(void *p)
+{
+	TEE_Free(p);
+}
+
+void *lws_zalloc(size_t size, const char *reason)
+{
+	void *ptr = TEE_Malloc(size, TEE_USER_MEM_HINT_NO_FILL_ZERO);
+	if (ptr)
+		memset(ptr, 0, size);
+	return ptr;
+}
+
+void lws_set_allocator(void *(*cb)(void *ptr, size_t size, const char *reason))
+{
+	(void)cb;
+}
+#else
+
+static void *_realloc(void *ptr, size_t size, const char *reason)
+{
+	if (size) {
+#if defined(LWS_WITH_ESP32)
+		lwsl_notice("%s: size %lu: %s (free heap %d)\n", __func__,
+			    (unsigned long)size, reason, (unsigned int)esp_get_free_heap_size() - (int)size);
+#else
+		lwsl_debug("%s: size %lu: %s\n", __func__,
+			   (unsigned long)size, reason);
+#endif
+#if defined(LWS_PLAT_OPTEE)
+		return (void *)TEE_Realloc(ptr, size);
+#else
+		return (void *)realloc(ptr, size);
+#endif
+	}
+	if (ptr)
+		free(ptr);
+
+	return NULL;
+}
+
+void *(*_lws_realloc)(void *ptr, size_t size, const char *reason) = _realloc;
+
+void *lws_realloc(void *ptr, size_t size, const char *reason)
+{
+	return _lws_realloc(ptr, size, reason);
+}
+
+void *lws_zalloc(size_t size, const char *reason)
+{
+	void *ptr = _lws_realloc(NULL, size, reason);
+	if (ptr)
+		memset(ptr, 0, size);
+	return ptr;
+}
+
+void lws_set_allocator(void *(*cb)(void *ptr, size_t size, const char *reason))
+{
+	_lws_realloc = cb;
+}
+#endif