mirror of
https://gitlab.eurecom.fr/oai/openairinterface5g.git
synced 2026-07-21 16:40:31 +00:00
8107939f08
- all RAN code, CI code, configuration files, dockerfiles, in CSSL v1.0
- all deployment code (openshift, charts, ancillary files like shell
scripts), in MIT
- documentation in CC-BY-4.0
- exceptions might apply and are listed in NOTICE
- there is a new LICENSES folder with all licenses
- CONTRIBUTIONS.md has been updated accordingly
For automated changes based on OAI PL v1.1:
perl -i~ -0pe 's/\/\*.*Licensed to the OpenAirInterface.*openairinterface.org\n#?/\/*\n * SPDX-License-Identifier: LicenseRef-CSSL-1.0\n/s' **/*.{c,h,cpp}
perl -i~ -0pe 's/\/\*.*Licensed to the OpenAirInterface.*openairinterface.org\n#?/\/*\n * SPDX-License-Identifier: LicenseRef-CSSL-1.0\n/s' **/*.ts
perl -i~ -0pe 's/<!--.*Licensed to the OpenAirInterface.*openairinterface.org\n.*-->/<!-- SPDX-License-Identifier: LicenseRef-CSSL-1.0 -->/s' **/*.xml
The rest (cmake, files with missing license, cmake) manually.
88 lines
2.1 KiB
C++
88 lines
2.1 KiB
C++
/*
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* SPDX-License-Identifier: LicenseRef-CSSL-1.0
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*/
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#ifndef TASK_ANSWER_THREAD_POOL_H
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#define TASK_ANSWER_THREAD_POOL_H
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#include "pthread_utils.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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#ifndef __cplusplus
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#include <stdalign.h>
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#include <stdatomic.h>
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#else
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#include <atomic>
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#ifndef _Atomic
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#define _Atomic(X) std::atomic<X>
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#endif
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#define _Alignas(X) alignas(X)
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#endif
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#include <stddef.h>
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#include <stdint.h>
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#include <semaphore.h>
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#if defined(__i386__) || defined(__x86_64__)
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#define LEVEL1_DCACHE_LINESIZE 64
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#elif defined(__aarch64__)
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// This is not always true for ARM
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// in linux, you can obtain the size at runtime using sysconf (_SC_LEVEL1_DCACHE_LINESIZE)
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// or from the bash with the command $ getconf LEVEL1_DCACHE_LINESIZE
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// in c++ using std::hardware_destructive_interference_size
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#define LEVEL1_DCACHE_LINESIZE 64
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#else
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#error Unknown CPU architecture
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#endif
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/** @brief
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* A multi-producer - single-consumer synchronization mechanism built for efficiency under
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* contention.
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*
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* @param sem semaphore to wait on
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* @param counter atomic counter to keep track of the number of tasks completed. Atomic counter
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* is used for efficiency under contention.
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*/
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typedef struct {
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sem_t sem;
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_Alignas(LEVEL1_DCACHE_LINESIZE) _Atomic(int) counter;
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} task_ans_t;
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typedef struct {
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uint8_t* buf;
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size_t len;
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size_t cap; // capacity
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task_ans_t* ans;
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} thread_info_tm_t;
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/// @brief Initialize a task_ans_t struct
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///
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/// @param ans task_ans_t struct
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/// @param num_jobs number of tasks to wait for
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void init_task_ans(task_ans_t* ans, unsigned int num_jobs);
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/// @brief Wait for all tasks to complete
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/// @param ans task_ans_t struct
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void join_task_ans(task_ans_t* arr);
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/// @brief Mark a number of tasks as completed.
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///
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/// @param ans task_ans_t struct
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/// @param num_completed_jobs number of tasks to mark as completed
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void completed_many_task_ans(task_ans_t* ans, uint num_completed_jobs);
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/// @brief Mark 1 tasks as completed.
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///
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/// @param ans task_ans_t struct
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static inline void completed_task_ans(task_ans_t* ans)
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{
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completed_many_task_ans(ans, 1);
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}
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#ifdef __cplusplus
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}
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#endif
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#endif
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