* Copyright (c) 2025 Huawei Technologies Co., Ltd.
* This program is free software, you can redistribute it and/or modify it under the terms and conditions of
* CANN Open Software License Agreement Version 2.0 (the "License").
* Please refer to the License for details. You may not use this file except in compliance with the License.
* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND, EITHER EXPRESS OR IMPLIED,
* INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT, MERCHANTABILITY, OR FITNESS FOR A PARTICULAR PURPOSE.
* See LICENSE in the root of the software repository for the full text of the License.
*/
#ifndef QUEUE_SCHEDULE_BQS_UTIL_H
#define QUEUE_SCHEDULE_BQS_UTIL_H
#include <cstdint>
#include <atomic>
#include <functional>
#include <unordered_map>
#include <string>
#include <cstring>
namespace bqs {
constexpr uint32_t LOCAL_Q = 0;
constexpr uint32_t CLIENT_Q = 1;
constexpr int32_t MAX_ENV_CHAR_NUM = 1024;
enum class RunContext {
DEVICE = 0,
HOST,
};
RunContext GetRunContext();
* it is used to get current time
* @return uint64_t tick
*/
uint64_t GetNowTime();
* @ingroup
* @brief read env value
* @param [in] envName : env to get
* @param [out] envValue : result
* @return : bool，Whether get the env success
*/
static inline void GetEnvVal(const std::string &env, std::string &val)
{
const char *const tmpVal = std::getenv(env.c_str());
if ((tmpVal == nullptr) || (strnlen(tmpVal, MAX_ENV_CHAR_NUM) >= MAX_ENV_CHAR_NUM)) {
val = "";
} else {
val = tmpVal;
}
}
static inline bool TransStrToInt(const std::string ¶, int32_t &value)
{
try {
value = std::stoi(para);
} catch (...) {
return false;
}
return true;
}
static inline bool TransStrToull(const std::string ¶, uint64_t &value)
{
try {
value = std::stoull(para);
} catch (...) {
return false;
}
return true;
}
class ScopeGuard {
public:
explicit ScopeGuard(const std::function<void()> exitScope)
: exitScope_(exitScope)
{}
~ScopeGuard()
{
exitScope_();
}
private:
ScopeGuard(ScopeGuard const&) = delete;
ScopeGuard& operator=(ScopeGuard const&) = delete;
ScopeGuard(ScopeGuard&&) = delete;
ScopeGuard& operator=(ScopeGuard&&) = delete;
std::function<void()> exitScope_;
};
class SpinLock {
public:
SpinLock() = default;
~SpinLock() = default;
void Lock()
{
while (lock_.test_and_set()) {}
}
void Unlock()
{
lock_.clear();
}
private:
SpinLock(SpinLock const&) = delete;
SpinLock& operator=(SpinLock const&) = delete;
SpinLock(SpinLock&&) = delete;
SpinLock& operator=(SpinLock&&) = delete;
std::atomic_flag lock_ = ATOMIC_FLAG_INIT;
};
class GlobalCfg {
public:
explicit GlobalCfg() = default;
virtual ~GlobalCfg() = default;
inline static GlobalCfg &GetInstance()
{
static GlobalCfg globalCfg;
return globalCfg;
}
inline void SetNumaFlag(const bool numaFlag)
{
numaFlag_ = numaFlag;
}
inline bool GetNumaFlag() const
{
return numaFlag_;
}
inline void RecordDeviceId(const uint32_t deviceId, const uint32_t resIndex, const uint32_t groupId)
{
deviceIdToResIndex_[deviceId] = std::make_pair(resIndex, groupId);
}
inline uint32_t GetResIndexByDeviceId(const uint32_t deviceId)
{
return deviceIdToResIndex_[deviceId].first;
}
inline uint32_t GetGroupIdByDeviceId(const uint32_t deviceId)
{
return deviceIdToResIndex_[deviceId].second;
}
private:
bool numaFlag_{false};
std::unordered_map<uint32_t, std::pair<uint32_t, uint32_t>> deviceIdToResIndex_;
};
}
#endif
