source: src/libcfa/concurrency/thread.c @ 9d944b2

aaron-thesisarm-ehcleanup-dtorsdeferred_resndemanglerjacob/cs343-translationjenkins-sandboxnew-astnew-ast-unique-exprnew-envno_listpersistent-indexerresolv-newwith_gc
Last change on this file since 9d944b2 was 9d944b2, checked in by Thierry Delisle <tdelisle@…>, 5 years ago

Implemented interposing for abort and exit, implemented safer debug output

  • Property mode set to 100644
File size: 2.6 KB
Line 
1//                              -*- Mode: CFA -*-
2//
3// Cforall Version 1.0.0 Copyright (C) 2016 University of Waterloo
4//
5// The contents of this file are covered under the licence agreement in the
6// file "LICENCE" distributed with Cforall.
7//
8// thread.c --
9//
10// Author           : Thierry Delisle
11// Created On       : Tue Jan 17 12:27:26 2017
12// Last Modified By : Thierry Delisle
13// Last Modified On : --
14// Update Count     : 0
15//
16
17#include "thread"
18
19#include "kernel_private.h"
20#include "libhdr.h"
21
22#define __CFA_INVOKE_PRIVATE__
23#include "invoke.h"
24
25extern "C" {
26        #include <fenv.h>
27        #include <stddef.h>
28}
29
30extern thread_local processor * this_processor;
31
32//-----------------------------------------------------------------------------
33// Thread ctors and dtors
34
35void ?{}(thread_desc* this) {
36        (&this->cor){};
37        this->cor.name = "Anonymous Coroutine";
38        this->mon.owner = this;
39        this->mon.recursion = 1;
40        this->next = NULL;
41}
42
43void ^?{}(thread_desc* this) {
44        ^(&this->cor){};
45}
46
47forall( dtype T | sized(T) | is_thread(T) | { void ?{}(T*); } )
48void ?{}( scoped(T)* this ) {
49        (&this->handle){};
50        __thrd_start(&this->handle);
51}
52
53forall( dtype T, ttype P | sized(T) | is_thread(T) | { void ?{}(T*, P); } )
54void ?{}( scoped(T)* this, P params ) {
55        (&this->handle){ params };
56        __thrd_start(&this->handle);
57}
58
59forall( dtype T | sized(T) | is_thread(T) )
60void ^?{}( scoped(T)* this ) {
61        ^(&this->handle){};
62}
63
64//-----------------------------------------------------------------------------
65// Starting and stopping threads
66forall( dtype T | is_thread(T) )
67void __thrd_start( T* this ) {
68        coroutine_desc* thrd_c = get_coroutine(this);
69        thread_desc*  thrd_h = get_thread   (this);
70        thrd_c->last = this_coroutine();
71        this_processor->current_coroutine = thrd_c;
72
73        LIB_DEBUG_PRINT_SAFE("Thread start : %p (t %p, c %p)\n", this, thrd_c, thrd_h);
74
75        create_stack(&thrd_c->stack, thrd_c->stack.size);
76        CtxStart(this, CtxInvokeThread);
77        CtxSwitch( thrd_c->last->stack.context, thrd_c->stack.context );
78
79        ScheduleThread(thrd_h);
80}
81
82void yield( void ) {
83        ScheduleInternal( this_processor->current_thread );
84}
85
86void ThreadCtxSwitch(coroutine_desc* src, coroutine_desc* dst) {
87        // set state of current coroutine to inactive
88        src->state = Inactive;
89        dst->state = Active;
90
91        //update the last resumer
92        dst->last = src;
93
94        // set new coroutine that the processor is executing
95        // and context switch to it
96        this_processor->current_coroutine = dst;
97        CtxSwitch( src->stack.context, dst->stack.context );
98        this_processor->current_coroutine = src;
99
100        // set state of new coroutine to active
101        dst->state = Inactive;
102        src->state = Active;
103}
104
105// Local Variables: //
106// mode: c //
107// tab-width: 4 //
108// End: //
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