[NETD-BPF#10] Add WaitForProgsLoaded.h
Move waitForProgsLoaded() from libbpf_android.h to a single header file.
A transitional commit of separating headers, utilities from bfploader.
Bug: 202086915
Test: build; flash; cd system/netd; atest
Change-Id: Ief1bcd09e973f952c29859a7a8fba92c8626e32d
diff --git a/libbpf_android/include/WaitForProgsLoaded.h b/libbpf_android/include/WaitForProgsLoaded.h
new file mode 100644
index 0000000..bc4168e
--- /dev/null
+++ b/libbpf_android/include/WaitForProgsLoaded.h
@@ -0,0 +1,39 @@
+/*
+ * Copyright (C) 2021 The Android Open Source Project
+ * Android BPF library - public API
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#pragma once
+
+#include <log/log.h>
+
+#include <android-base/properties.h>
+
+namespace android {
+namespace bpf {
+
+// Wait for bpfloader to load BPF programs.
+static inline void waitForProgsLoaded() {
+ // infinite loop until success with 5/10/20/40/60/60/60... delay
+ for (int delay = 5;; delay *= 2) {
+ if (delay > 60) delay = 60;
+ if (android::base::WaitForProperty("bpf.progs_loaded", "1", std::chrono::seconds(delay)))
+ return;
+ ALOGW("Waited %ds for bpf.progs_loaded, still waiting...", delay);
+ }
+}
+
+} // namespace bpf
+} // namespace android
diff --git a/libbpf_android/include/libbpf_android.h b/libbpf_android/include/libbpf_android.h
index 640f35b..a3d5f03 100644
--- a/libbpf_android/include/libbpf_android.h
+++ b/libbpf_android/include/libbpf_android.h
@@ -19,9 +19,6 @@
#include <libbpf.h>
#include <linux/bpf.h>
-#include <log/log.h>
-
-#include <android-base/properties.h>
namespace android {
namespace bpf {
@@ -32,16 +29,5 @@
// Exposed for testing
unsigned int readSectionUint(const char* name, std::ifstream& elfFile, unsigned int defVal);
-// Wait for bpfloader to load BPF programs.
-static inline void waitForProgsLoaded() {
- // infinite loop until success with 5/10/20/40/60/60/60... delay
- for (int delay = 5;; delay *= 2) {
- if (delay > 60) delay = 60;
- if (android::base::WaitForProperty("bpf.progs_loaded", "1", std::chrono::seconds(delay)))
- return;
- ALOGW("Waited %ds for bpf.progs_loaded, still waiting...", delay);
- }
-}
-
} // namespace bpf
} // namespace android