source: libcfa/src/concurrency/thread.hfa @ ecfd758

arm-ehjacob/cs343-translationnew-ast-unique-expr
Last change on this file since ecfd758 was ecfd758, checked in by Andrew Beach <ajbeach@…>, 6 months ago

Major exception update, seperating type-ids from virtual tables. The major interface changes are done. There is a regression of ?Cancelled(T) to Some?Cancelled. There is some bits of code for the new verion of the ?Cancelled(T) interface already there. Not connected yet but I just reached the limit of what I wanted to do in one commit and then spent over a day cleaning up, so it will replace Some?Cancelled in a future commit.

  • Property mode set to 100644
File size: 5.2 KB
RevLine 
[0e76cf4f]1//
[78b3f52]2// Cforall Version 1.0.0 Copyright (C) 2016 University of Waterloo
[0e76cf4f]3//
4// The contents of this file are covered under the licence agreement in the
5// file "LICENCE" distributed with Cforall.
6//
[75a17f1]7// thread --
[0e76cf4f]8//
[78b3f52]9// Author           : Thierry Delisle
[f07e037]10// Created On       : Tue Jan 17 12:27:26 2017
[91c389a]11// Last Modified By : Peter A. Buhr
[121be3e]12// Last Modified On : Wed Dec  4 09:18:14 2019
13// Update Count     : 6
[0e76cf4f]14//
15
[6b0b624]16#pragma once
[0e76cf4f]17
[91c389a]18#include <assert.h>
[8118303]19#include "invoke.h"
[78b3f52]20
[58b6d1b]21#include "coroutine.hfa"
22#include "kernel.hfa"
23#include "monitor.hfa"
[ab8c6a6]24#include "exception.hfa"
[8118303]25
26//-----------------------------------------------------------------------------
[de6319f]27// thread trait
[fd54fef]28trait is_thread(T &) {
[ab8c6a6]29        void ^?{}(T& mutex this);
30        void main(T& this);
31        $thread* get_thread(T& this);
[8118303]32};
33
[ecfd758]34EHM_EXCEPTION(SomeThreadCancelled) (
35        void * the_thread;
36        exception_t * the_exception;
37);
38
39EHM_EXTERN_VTABLE(SomeThreadCancelled, std_thread_cancelled);
40
41EHM_FORALL_EXCEPTION(ThreadCancelled, (thread_t &), (thread_t)) (
[ab8c6a6]42        thread_t * the_thread;
43        exception_t * the_exception;
44);
45
[fd54fef]46forall(T &)
[ab8c6a6]47void copy(ThreadCancelled(T) * dst, ThreadCancelled(T) * src);
48
[fd54fef]49forall(T &)
[ab8c6a6]50const char * msg(ThreadCancelled(T) *);
51
[8c50aed]52// Inline getters for threads/coroutines/monitors
[fd54fef]53forall( T & | is_thread(T) )
[ac2b598]54static inline $coroutine* get_coroutine(T & this) __attribute__((const)) { return &get_thread(this)->self_cor; }
[8118303]55
[fd54fef]56forall( T & | is_thread(T) )
[ac2b598]57static inline $monitor  * get_monitor  (T & this) __attribute__((const)) { return &get_thread(this)->self_mon; }
[cb0e6de]58
[ac2b598]59static inline $coroutine* get_coroutine($thread * this) __attribute__((const)) { return &this->self_cor; }
60static inline $monitor  * get_monitor  ($thread * this) __attribute__((const)) { return &this->self_mon; }
[cb0e6de]61
[8c50aed]62//-----------------------------------------------------------------------------
63// forward declarations needed for threads
[de6319f]64extern struct cluster * mainCluster;
[bd98b58]65
[fd54fef]66forall( T & | is_thread(T) )
[09f357e]67void __thrd_start( T & this, void (*)(T &) );
[bd4d011]68
[8118303]69//-----------------------------------------------------------------------------
70// Ctors and dtors
[ac2b598]71void ?{}($thread & this, const char * const name, struct cluster & cl, void * storage, size_t storageSize );
72void ^?{}($thread & this);
73
74static inline void ?{}($thread & this)                                                                  { this{ "Anonymous Thread", *mainCluster, 0p, 65000 }; }
75static inline void ?{}($thread & this, size_t stackSize )                                               { this{ "Anonymous Thread", *mainCluster, 0p, stackSize }; }
76static inline void ?{}($thread & this, void * storage, size_t storageSize )                             { this{ "Anonymous Thread", *mainCluster, storage, storageSize }; }
77static inline void ?{}($thread & this, struct cluster & cl )                                            { this{ "Anonymous Thread", cl, 0p, 65000 }; }
78static inline void ?{}($thread & this, struct cluster & cl, size_t stackSize )                          { this{ "Anonymous Thread", cl, 0p, stackSize }; }
79static inline void ?{}($thread & this, struct cluster & cl, void * storage, size_t storageSize )        { this{ "Anonymous Thread", cl, storage, storageSize }; }
80static inline void ?{}($thread & this, const char * const name)                                         { this{ name, *mainCluster, 0p, 65000 }; }
81static inline void ?{}($thread & this, const char * const name, struct cluster & cl )                   { this{ name, cl, 0p, 65000 }; }
82static inline void ?{}($thread & this, const char * const name, struct cluster & cl, size_t stackSize ) { this{ name, cl, 0p, stackSize }; }
[8118303]83
[ab8c6a6]84struct thread_dtor_guard_t {
85        monitor_dtor_guard_t mg;
86};
87
[ecfd758]88forall( T & | is_thread(T) | IS_EXCEPTION(SomeThreadCancelled) )
89void ?{}( thread_dtor_guard_t & this, T & thrd, void(*)(SomeThreadCancelled &) );
[ab8c6a6]90void ^?{}( thread_dtor_guard_t & this );
91
[8118303]92//-----------------------------------------------------------------------------
93// thread runner
94// Structure that actually start and stop threads
[fd54fef]95forall( T & | sized(T) | is_thread(T) )
[e15df4c]96struct scoped {
[8118303]97        T handle;
98};
99
[fd54fef]100forall( T & | sized(T) | is_thread(T) | { void ?{}(T&); } )
[242a902]101void ?{}( scoped(T)& this );
[8118303]102
[fd54fef]103forall( T &, P... | sized(T) | is_thread(T) | { void ?{}(T&, P); } )
[242a902]104void ?{}( scoped(T)& this, P params );
[8118303]105
[fd54fef]106forall( T & | sized(T) | is_thread(T) )
[242a902]107void ^?{}( scoped(T)& this );
[8118303]108
[3381ed7]109//-----------------------------------------------------------------------------
110// Scheduler API
111
112//----------
113// Park thread: block until corresponding call to unpark, won't block if unpark is already called
[e235429]114void park( void );
[3381ed7]115
116//----------
117// Unpark a thread, if the thread is already blocked, schedule it
[b0c7419]118//                  if the thread is not yet block, signal that it should rerun immediately
[e235429]119void unpark( $thread * this );
[3381ed7]120
[fd54fef]121forall( T & | is_thread(T) )
[e235429]122static inline void unpark( T & this ) { if(!&this) return; unpark( get_thread( this ) );}
[3381ed7]123
124//----------
125// Yield: force thread to block and be rescheduled
[b0c7419]126bool force_yield( enum __Preemption_Reason );
127
[2d8f7b0]128//----------
129// sleep: force thread to block and be rescheduled after Duration duration
130void sleep( Duration duration );
131
[77a2994]132//----------
133// join
[ecfd758]134forall( T & | is_thread(T) | IS_RESUMPTION_EXCEPTION(SomeThreadCancelled) )
[77a2994]135T & join( T & this );
136
[78b3f52]137// Local Variables: //
138// mode: c //
139// tab-width: 4 //
140// End: //
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