source: libcfa/src/concurrency/kernel.hfa @ ac2b598

ADTarm-ehast-experimentalenumforall-pointer-decayjacob/cs343-translationjenkins-sandboxnew-astnew-ast-unique-exprpthread-emulationqualifiedEnum
Last change on this file since ac2b598 was ac2b598, checked in by Thierry Delisle <tdelisle@…>, 4 years ago

Changed descriptors for concurrency to use $ prefix instead of trailing _desc

  • Property mode set to 100644
File size: 4.2 KB
RevLine 
[8118303]1//
2// Cforall Version 1.0.0 Copyright (C) 2016 University of Waterloo
3//
4// The contents of this file are covered under the licence agreement in the
5// file "LICENCE" distributed with Cforall.
6//
[75a17f1]7// kernel --
[8118303]8//
9// Author           : Thierry Delisle
[75f3522]10// Created On       : Tue Jan 17 12:27:26 2017
[6b0b624]11// Last Modified By : Peter A. Buhr
[e3fea42]12// Last Modified On : Tue Feb  4 12:29:26 2020
13// Update Count     : 22
[8118303]14//
15
[6b0b624]16#pragma once
[8118303]17
[c84e80a]18#include <stdbool.h>
[8118303]19
[bd98b58]20#include "invoke.h"
[73abe95]21#include "time_t.hfa"
[d76bd79]22#include "coroutine.hfa"
[bd98b58]23
[8def349]24extern "C" {
25#include <pthread.h>
[6b4cdd3]26#include <semaphore.h>
[8def349]27}
28
[db6f06a]29//-----------------------------------------------------------------------------
30// Locks
[bdeba0b]31struct semaphore {
[ea7d2b0]32        __spinlock_t lock;
[bdeba0b]33        int count;
[ac2b598]34        __queue_t($thread) waiting;
[9c31349]35};
36
[242a902]37void  ?{}(semaphore & this, int count = 1);
38void ^?{}(semaphore & this);
[4cedd9f]39void   P (semaphore & this);
40void   V (semaphore & this);
[9c31349]41
[db6f06a]42
[bd98b58]43//-----------------------------------------------------------------------------
[de94a60]44// Processor
[de6319f]45extern struct cluster * mainCluster;
[bd98b58]46
[e60e0dc]47// Processor
[094476d]48coroutine processorCtx_t {
49        struct processor * proc;
50};
51
[e60e0dc]52// Wrapper around kernel threads
[c84e80a]53struct processor {
[e60e0dc]54        // Main state
[025278e]55        // Coroutine ctx who does keeps the state of the processor
[094476d]56        struct processorCtx_t runner;
[025278e]57
58        // Cluster from which to get threads
[de94a60]59        struct cluster * cltr;
[025278e]60
[de6319f]61        // Name of the processor
62        const char * name;
63
[025278e]64        // Handle to pthreads
65        pthread_t kernel_thread;
[2ac095d]66
[e60e0dc]67        // RunThread data
[025278e]68        // Action to do after a thread is ran
[ac2b598]69        $thread * destroyer;
[c81ebf9]70
[e60e0dc]71        // Preemption data
[025278e]72        // Node which is added in the discrete event simulaiton
73        struct alarm_node_t * preemption_alarm;
74
75        // If true, a preemption was triggered in an unsafe region, the processor must preempt as soon as possible
76        bool pending_preemption;
[c81ebf9]77
[de94a60]78        // Idle lock
[85b1deb]79        __bin_sem_t idleLock;
80
81        // Termination
82        // Set to true to notify the processor should terminate
83        volatile bool do_terminate;
84
85        // Termination synchronisation
86        semaphore terminated;
[de94a60]87
[27f5f71]88        // pthread Stack
89        void * stack;
90
[de94a60]91        // Link lists fields
[ea8b2f7]92        struct __dbg_node_proc {
[de94a60]93                struct processor * next;
94                struct processor * prev;
95        } node;
[14a61b5]96
[e60e0dc]97#ifdef __CFA_DEBUG__
[025278e]98        // Last function to enable preemption on this processor
[cdbfab0]99        const char * last_enable;
[e60e0dc]100#endif
[c84e80a]101};
102
[e3fea42]103void  ?{}(processor & this, const char name[], struct cluster & cltr);
[242a902]104void ^?{}(processor & this);
[c84e80a]105
[de6319f]106static inline void  ?{}(processor & this)                    { this{ "Anonymous Processor", *mainCluster}; }
[de94a60]107static inline void  ?{}(processor & this, struct cluster & cltr)    { this{ "Anonymous Processor", cltr}; }
[e3fea42]108static inline void  ?{}(processor & this, const char name[]) { this{name, *mainCluster }; }
[de6319f]109
[c7a900a]110static inline [processor *&, processor *& ] __get( processor & this ) __attribute__((const)) { return this.node.[next, prev]; }
[de94a60]111
112//-----------------------------------------------------------------------------
113// Cluster
114struct cluster {
115        // Ready queue locks
116        __spinlock_t ready_queue_lock;
117
118        // Ready queue for threads
[ac2b598]119        __queue_t($thread) ready_queue;
[de94a60]120
121        // Name of the cluster
122        const char * name;
123
124        // Preemption rate on this cluster
125        Duration preemption_rate;
126
127        // List of processors
128        __spinlock_t proc_list_lock;
129        __dllist_t(struct processor) procs;
130        __dllist_t(struct processor) idles;
[d4e68a6]131        unsigned int nprocessors;
[de94a60]132
[d4e68a6]133        // List of threads
[a1a17a7]134        __spinlock_t thread_list_lock;
[ac2b598]135        __dllist_t(struct $thread) threads;
[d4e68a6]136        unsigned int nthreads;
[a1a17a7]137
[de94a60]138        // Link lists fields
[ea8b2f7]139        struct __dbg_node_cltr {
[de94a60]140                cluster * next;
141                cluster * prev;
142        } node;
143};
144extern Duration default_preemption();
145
[e3fea42]146void ?{} (cluster & this, const char name[], Duration preemption_rate);
[de94a60]147void ^?{}(cluster & this);
148
149static inline void ?{} (cluster & this)                           { this{"Anonymous Cluster", default_preemption()}; }
150static inline void ?{} (cluster & this, Duration preemption_rate) { this{"Anonymous Cluster", preemption_rate}; }
[e3fea42]151static inline void ?{} (cluster & this, const char name[])        { this{name, default_preemption()}; }
[de94a60]152
[c7a900a]153static inline [cluster *&, cluster *& ] __get( cluster & this ) __attribute__((const)) { return this.node.[next, prev]; }
[de94a60]154
[0f2c555]155static inline struct processor * active_processor() { return TL_GET( this_processor ); } // UNSAFE
156static inline struct cluster   * active_cluster  () { return TL_GET( this_processor )->cltr; }
[d4e68a6]157
[8118303]158// Local Variables: //
[6b0b624]159// mode: c //
160// tab-width: 4 //
[8118303]161// End: //
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