source: src/libcfa/concurrency/invoke.h @ 90c4df0

aaron-thesisarm-ehcleanup-dtorsdeferred_resndemanglerenumforall-pointer-decayjacob/cs343-translationjenkins-sandboxnew-astnew-ast-unique-exprnew-envno_listpersistent-indexerpthread-emulationqualifiedEnumresolv-newwith_gc
Last change on this file since 90c4df0 was 90c4df0, checked in by Thierry Delisle <tdelisle@…>, 5 years ago

Implemented search for external scheduling

  • Property mode set to 100644
File size: 5.6 KB
Line 
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//
7// invoke.h --
8//
9// Author           : Thierry Delisle
10// Created On       : Tue Jan 17 12:27:26 2016
11// Last Modified By : Peter A. Buhr
12// Last Modified On : Fri Jul 21 22:28:56 2017
13// Update Count     : 1
14//
15
16#include <stdbool.h>
17#include <stdint.h>
18
19#ifdef __CFORALL__
20extern "C" {
21#endif
22
23#if ! defined(__CFA_INVOKE_PRIVATE__)
24#ifndef _INVOKE_H_
25#define _INVOKE_H_
26
27      #define unlikely(x)    __builtin_expect(!!(x), 0)
28      #define thread_local _Thread_local
29
30      typedef void (*fptr_t)();
31
32      struct spinlock {
33            volatile int lock;
34            #ifdef __CFA_DEBUG__
35                  const char * prev_name;
36                  void* prev_thrd;
37            #endif
38      };
39
40      struct __thread_queue_t {
41            struct thread_desc * head;
42            struct thread_desc ** tail;
43      };
44
45      struct __condition_stack_t {
46            struct __condition_criterion_t * top;
47      };
48
49      #ifdef __CFORALL__
50      extern "Cforall" {
51            void ?{}( struct __thread_queue_t * );
52            void append( struct __thread_queue_t *, struct thread_desc * );
53            struct thread_desc * pop_head( struct __thread_queue_t * );
54            struct thread_desc * remove( struct __thread_queue_t *, struct thread_desc ** );
55
56            void ?{}( struct __condition_stack_t * );
57            void push( struct __condition_stack_t *, struct __condition_criterion_t * );
58            struct __condition_criterion_t * pop( struct __condition_stack_t * );
59
60            void ?{}(spinlock * this);
61            void ^?{}(spinlock * this);
62      }
63      #endif
64
65      struct coStack_t {
66            unsigned int size;                        // size of stack
67            void *storage;                            // pointer to stack
68            void *limit;                              // stack grows towards stack limit
69            void *base;                               // base of stack
70            void *context;                            // address of cfa_context_t
71            void *top;                                // address of top of storage
72            bool userStack;                           // whether or not the user allocated the stack
73      };
74
75      enum coroutine_state { Halted, Start, Inactive, Active, Primed };
76
77      struct coroutine_desc {
78            struct coStack_t stack;                   // stack information of the coroutine
79            const char *name;                         // textual name for coroutine/task, initialized by uC++ generated code
80            int errno_;                               // copy of global UNIX variable errno
81            enum coroutine_state state;               // current execution status for coroutine
82            struct coroutine_desc *starter;           // first coroutine to resume this one
83            struct coroutine_desc *last;                    // last coroutine to resume this one
84      };
85
86      struct monitor_desc {
87            struct spinlock lock;                     // spinlock to protect internal data
88            struct thread_desc * owner;               // current owner of the monitor
89            struct __thread_queue_t entry_queue;      // queue of threads that are blocked waiting for the monitor
90            struct __condition_stack_t signal_stack;  // stack of conditions to run next once we exit the monitor
91            unsigned int recursion;                   // monitor routines can be called recursively, we need to keep track of that
92
93            struct __acceptable_t * acceptables;      // list of acceptable functions, null if any
94            unsigned short acceptable_count;          // number of acceptable functions
95            short accepted_index;                     // the index of the accepted function, -1 if none
96            fptr_t pre_accept;                        // function to run before an accept
97       };
98
99      struct thread_desc {
100            // Core threading fields
101            struct coroutine_desc cor;                // coroutine body used to store context
102            struct monitor_desc mon;                  // monitor body used for mutual exclusion
103
104            // Link lists fields
105            struct thread_desc * next;                // instrusive link field for threads
106
107            // Current status related to monitors
108            struct monitor_desc ** current_monitors;  // currently held monitors
109            unsigned short current_monitor_count;     // number of currently held monitors
110            fptr_t current_monitor_func;              // last function that acquired monitors
111     };
112
113#endif //_INVOKE_H_
114#else //! defined(__CFA_INVOKE_PRIVATE__)
115#ifndef _INVOKE_PRIVATE_H_
116#define _INVOKE_PRIVATE_H_
117
118      struct machine_context_t {
119            void *SP;
120            void *FP;
121            void *PC;
122      };
123
124      // assembler routines that performs the context switch
125      extern void CtxInvokeStub( void );
126      void CtxSwitch( void * from, void * to ) asm ("CtxSwitch");
127
128      #if   defined( __x86_64__ )
129      #define CtxGet( ctx ) __asm__ ( \
130                  "movq %%rsp,%0\n"   \
131                  "movq %%rbp,%1\n"   \
132            : "=rm" (ctx.SP), "=rm" (ctx.FP) )
133      #elif defined( __i386__ )
134      #define CtxGet( ctx ) __asm__ ( \
135                  "movl %%esp,%0\n"   \
136                  "movl %%ebp,%1\n"   \
137            : "=rm" (ctx.SP), "=rm" (ctx.FP) )
138      #endif
139
140#endif //_INVOKE_PRIVATE_H_
141#endif //! defined(__CFA_INVOKE_PRIVATE__)
142#ifdef __CFORALL__
143}
144#endif
145
146// Local Variables: //
147// mode: c //
148// tab-width: 4 //
149// End: //
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