diff options
author | Ken Chen <cken@google.com> | 2021-10-25 18:51:00 +0800 |
---|---|---|
committer | Ken Chen <cken@google.com> | 2021-12-03 08:16:24 +0000 |
commit | 5b0fbc192e8b044f97aa0144afe6a2fcb977f519 (patch) | |
tree | 0a092a05916d23f3deeaeb998e4ab1c0bcb980d9 /libbpf_android | |
parent | edfca8b548f32afc5a6c50e3a007df574bee47f6 (diff) | |
download | bpf-5b0fbc192e8b044f97aa0144afe6a2fcb977f519.tar.gz |
[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
Diffstat (limited to 'libbpf_android')
-rw-r--r-- | libbpf_android/include/WaitForProgsLoaded.h | 39 | ||||
-rw-r--r-- | libbpf_android/include/libbpf_android.h | 14 |
2 files changed, 39 insertions, 14 deletions
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 @@ int loadProg(const char* elfPath, bool* isCritical, const char* prefix = ""); // 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 |