initial commit

libs/newlib/pthread.c

@@ -0,0 +1,37 @@
+/*
+ * SPDX-FileCopyrightText: 2022 Espressif Systems (Shanghai) CO LTD
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+#include <pthread.h>
+#include "esp_log.h"
+
+const static char *TAG = "esp32_asio_pthread";
+
+int pthread_setcancelstate(int state, int *oldstate)
+{
+    return 0;
+}
+
+//  This functions (pthread_sigmask(), sigfillset) are called from ASIO::signal_blocker to temporarily silence signals
+//  Since signals are not yet supported in ESP pthread these functions serve as no-ops
+//
+int pthread_sigmask(int how, const sigset_t *restrict set, sigset_t *restrict oset)
+{
+    ESP_LOGD(TAG, "%s: Signals not supported in ESP pthread", __func__);
+    return 0;
+}
+
+int sigfillset(sigset_t *what)
+{
+    ESP_LOGD(TAG, "%s: Signals not supported in ESP pthread", __func__);
+    if (what != NULL) {
+        *what = ~0;
+    }
+    return 0;
+}
+
+void newlib_include_pthread_impl(void)
+{
+    // Linker hook, exists for no other purpose
+}