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/*
* Copyright (C) 2018 The Android Open Source Project
*
* 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.
*/
#ifndef _LLKD_H_
#define _LLKD_H_
#ifndef LOG_TAG
#define LOG_TAG "livelock"
#endif
#include <stdbool.h>
#include <sys/cdefs.h>
__BEGIN_DECLS
bool llkInit(const char* threadname); /* threadname NULL, not spawned */
unsigned llkCheckMilliseconds(void);
/* clang-format off */
#define LLK_ENABLE_WRITEABLE_PROPERTY "llk.enable"
#define LLK_ENABLE_PROPERTY "ro." LLK_ENABLE_WRITEABLE_PROPERTY
#define LLK_ENABLE_DEFAULT false /* "eng" and userdebug true */
#define KHT_ENABLE_WRITEABLE_PROPERTY "khungtask.enable"
#define KHT_ENABLE_PROPERTY "ro." KHT_ENABLE_WRITEABLE_PROPERTY
#define LLK_ENABLE_SYSRQ_T_PROPERTY "ro.llk.sysrq_t"
#define LLK_ENABLE_SYSRQ_T_DEFAULT true
#define LLK_MLOCKALL_PROPERTY "ro.llk.mlockall"
#define LLK_MLOCKALL_DEFAULT true
#define LLK_KILLTEST_PROPERTY "ro.llk.killtest"
#define LLK_KILLTEST_DEFAULT true
#define LLK_TIMEOUT_MS_PROPERTY "ro.llk.timeout_ms"
#define KHT_TIMEOUT_PROPERTY "ro.khungtask.timeout"
#define LLK_D_TIMEOUT_MS_PROPERTY "ro.llk.D.timeout_ms"
#define LLK_Z_TIMEOUT_MS_PROPERTY "ro.llk.Z.timeout_ms"
#define LLK_STACK_TIMEOUT_MS_PROPERTY "ro.llk.stack.timeout_ms"
#define LLK_CHECK_MS_PROPERTY "ro.llk.check_ms"
/* LLK_CHECK_MS_DEFAULT = actual timeout_ms / LLK_CHECKS_PER_TIMEOUT_DEFAULT */
#define LLK_CHECKS_PER_TIMEOUT_DEFAULT 5
#define LLK_CHECK_STACK_PROPERTY "ro.llk.stack"
#define LLK_CHECK_STACK_DEFAULT \
"cma_alloc,__get_user_pages,bit_wait_io,wait_on_page_bit_killable"
#define LLK_IGNORELIST_PROCESS_PROPERTY "ro.llk.ignorelist.process"
#define LLK_IGNORELIST_PROCESS_DEFAULT \
"0,1,2,init,[kthreadd],[khungtaskd],lmkd,llkd,watchdogd,[watchdogd],[watchdogd/0]"
#define LLK_IGNORELIST_PARENT_PROPERTY "ro.llk.ignorelist.parent"
#define LLK_IGNORELIST_PARENT_DEFAULT "0,2,[kthreadd],adbd&[setsid]"
#define LLK_IGNORELIST_UID_PROPERTY "ro.llk.ignorelist.uid"
#define LLK_IGNORELIST_UID_DEFAULT ""
#define LLK_IGNORELIST_STACK_PROPERTY "ro.llk.ignorelist.process.stack"
#define LLK_IGNORELIST_STACK_DEFAULT "init,lmkd.llkd,llkd,keystore,keystore2,ueventd,apexd"
/* clang-format on */
__END_DECLS
#ifdef __cplusplus
extern "C++" { /* In case this included wrapped with __BEGIN_DECLS */
#include <chrono>
__BEGIN_DECLS
/* C++ code allowed to not specify threadname argument for this C linkage */
bool llkInit(const char* threadname = nullptr);
__END_DECLS
std::chrono::milliseconds llkCheck(bool checkRunning = false);
/* clang-format off */
#define LLK_TIMEOUT_MS_DEFAULT std::chrono::duration_cast<milliseconds>(std::chrono::minutes(10))
#define LLK_TIMEOUT_MS_MINIMUM std::chrono::duration_cast<std::chrono::milliseconds>(std::chrono::seconds(10))
#define LLK_CHECK_MS_MINIMUM std::chrono::duration_cast<std::chrono::milliseconds>(std::chrono::seconds(1))
/* clang-format on */
} /* extern "C++" */
#endif /* __cplusplus */
#endif /* _LLKD_H_ */
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