source: src/libcfa/concurrency/monitor @ 1167cd4

aaron-thesisarm-ehcleanup-dtorsdeferred_resndemanglerjacob/cs343-translationjenkins-sandboxnew-astnew-ast-unique-exprnew-envno_listpersistent-indexerresolv-newwith_gc
Last change on this file since 1167cd4 was 1167cd4, checked in by Thierry Delisle <tdelisle@…>, 5 years ago

Fixed memory leak in conditions

  • Property mode set to 100644
File size: 2.6 KB
RevLine 
[f07e037]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// monitor --
9//
10// Author           : Thierry Delisle
11// Created On       : Thd Feb 23 12:27:26 2017
12// Last Modified By : Thierry Delisle
13// Last Modified On : --
14// Update Count     : 0
15//
16
17#ifndef MONITOR_H
18#define MONITOR_H
19
[690f13c]20#include <stddef.h>
21
[f07e037]22#include "assert"
23#include "invoke.h"
[2781e65]24#include "stdlib"
[f07e037]25
[84c52a8]26static inline void ?{}(monitor_desc * this) {
[690f13c]27        this->owner = NULL;
28      this->stack_owner = NULL;
[cc7f4b1]29        this->recursion = 0;
30}
31
32struct monitor_guard_t {
[84c52a8]33        monitor_desc ** m;
[2781e65]34        int count;
[5ea06d6]35      monitor_desc ** prev_mntrs;
36      unsigned short  prev_count;
[51f3798]37};
38
[84c52a8]39static inline int ?<?(monitor_desc* lhs, monitor_desc* rhs) {
[2781e65]40        return ((intptr_t)lhs) < ((intptr_t)rhs);
41}
42
[5ea06d6]43void ?{}( monitor_guard_t * this, monitor_desc ** m, int count );
44void ^?{}( monitor_guard_t * this );
[51f3798]45
[5ea06d6]46//-----------------------------------------------------------------------------
47// Internal scheduling
[0c78741]48
49struct __condition_criterion_t {
50        bool ready;                                             //Whether or not the criterion is met (True if met)
51        monitor_desc * target;                          //The monitor this criterion concerns
52        struct __condition_node_t * owner;              //The parent node to which this criterion belongs
53        __condition_criterion_t * next;         //Intrusive linked list Next field
54};
55
56struct __condition_node_t {
57        thread_desc * waiting_thread;                   //Thread that needs to be woken when all criteria are met
58        __condition_criterion_t * criteria;     //Array of criteria (Criterions are contiguous in memory)
59        unsigned short count;                           //Number of criterions in the criteria
60        __condition_node_t * next;                      //Intrusive linked list Next field
61};
62
63struct __condition_blocked_queue_t {
64        __condition_node_t * head;
65        __condition_node_t ** tail;
66};
67
68void ?{}( __condition_blocked_queue_t * );
69void append( __condition_blocked_queue_t *, __condition_node_t * );
70__condition_node_t * pop_head( __condition_blocked_queue_t * );
71
[5ea06d6]72struct condition {
[0c78741]73        __condition_blocked_queue_t blocked;    //Link list which contains the blocked threads as-well as the information needed to unblock them
74        monitor_desc ** monitors;                       //Array of monitor pointers (Monitors are NOT contiguous in memory)
75        unsigned short monitor_count;                   //Number of monitors in the array
[5ea06d6]76};
[51f3798]77
[5ea06d6]78static inline void ?{}( condition * this ) {
79        this->monitors = NULL;
80        this->monitor_count = 0;
81}
[2781e65]82
[1167cd4]83static inline void ^?{}( condition * this ) {
84        free( this->monitors );
85}
86
[5ea06d6]87void wait( condition * this );
88void signal( condition * this );
[f07e037]89#endif //MONITOR_H
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