[8def349] | 1 | // |
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| 2 | // Cforall Version 1.0.0 Copyright (C) 2016 University of Waterloo |
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| 3 | // |
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| 4 | // The contents of this file are covered under the licence agreement in the |
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| 5 | // file "LICENCE" distributed with Cforall. |
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| 6 | // |
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| 7 | // invoke.h -- |
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| 8 | // |
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| 9 | // Author : Thierry Delisle |
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| 10 | // Created On : Tue Jan 17 12:27:26 2016 |
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[6b0b624] | 11 | // Last Modified By : Peter A. Buhr |
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| 12 | // Last Modified On : Fri Jul 21 22:28:56 2017 |
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| 13 | // Update Count : 1 |
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[8def349] | 14 | // |
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| 15 | |
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[5c81105] | 16 | #include <stdbool.h> |
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| 17 | #include <stdint.h> |
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[78b3f52] | 18 | |
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[5c81105] | 19 | #ifdef __CFORALL__ |
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| 20 | extern "C" { |
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| 21 | #endif |
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| 22 | |
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| 23 | #if ! defined(__CFA_INVOKE_PRIVATE__) |
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[78b3f52] | 24 | #ifndef _INVOKE_H_ |
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| 25 | #define _INVOKE_H_ |
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| 26 | |
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[596f987b] | 27 | #define unlikely(x) __builtin_expect(!!(x), 0) |
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[8def349] | 28 | #define thread_local _Thread_local |
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[bd98b58] | 29 | |
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[db6f06a] | 30 | struct spinlock { |
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| 31 | volatile int lock; |
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[1c273d0] | 32 | #ifdef __CFA_DEBUG__ |
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[b227f68] | 33 | const char * prev_name; |
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| 34 | void* prev_thrd; |
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[1c273d0] | 35 | #endif |
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[db6f06a] | 36 | }; |
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| 37 | |
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[5ea06d6] | 38 | struct __thread_queue_t { |
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[348006f] | 39 | struct thread_desc * head; |
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| 40 | struct thread_desc ** tail; |
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[bd98b58] | 41 | }; |
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| 42 | |
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[0c78741] | 43 | struct __condition_stack_t { |
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| 44 | struct __condition_criterion_t * top; |
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[690f13c] | 45 | }; |
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| 46 | |
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[bd98b58] | 47 | #ifdef __CFORALL__ |
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| 48 | extern "Cforall" { |
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[242a902] | 49 | void ?{}( struct __thread_queue_t & ); |
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[5ea06d6] | 50 | void append( struct __thread_queue_t *, struct thread_desc * ); |
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| 51 | struct thread_desc * pop_head( struct __thread_queue_t * ); |
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[db6f06a] | 52 | |
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[242a902] | 53 | void ?{}( struct __condition_stack_t & ); |
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[0c78741] | 54 | void push( struct __condition_stack_t *, struct __condition_criterion_t * ); |
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| 55 | struct __condition_criterion_t * pop( struct __condition_stack_t * ); |
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[690f13c] | 56 | |
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[242a902] | 57 | void ?{}(spinlock & this); |
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| 58 | void ^?{}(spinlock & this); |
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[bd98b58] | 59 | } |
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| 60 | #endif |
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[596f987b] | 61 | |
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| 62 | struct coStack_t { |
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[5ea06d6] | 63 | unsigned int size; // size of stack |
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| 64 | void *storage; // pointer to stack |
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| 65 | void *limit; // stack grows towards stack limit |
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| 66 | void *base; // base of stack |
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| 67 | void *context; // address of cfa_context_t |
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| 68 | void *top; // address of top of storage |
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| 69 | bool userStack; // whether or not the user allocated the stack |
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[5c81105] | 70 | }; |
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[78b3f52] | 71 | |
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[ee897e4b] | 72 | enum coroutine_state { Halted, Start, Inactive, Active, Primed }; |
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[78b3f52] | 73 | |
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[c3acb841] | 74 | struct coroutine_desc { |
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[5ea06d6] | 75 | struct coStack_t stack; // stack information of the coroutine |
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| 76 | const char *name; // textual name for coroutine/task, initialized by uC++ generated code |
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| 77 | int errno_; // copy of global UNIX variable errno |
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| 78 | enum coroutine_state state; // current execution status for coroutine |
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| 79 | struct coroutine_desc *starter; // first coroutine to resume this one |
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| 80 | struct coroutine_desc *last; // last coroutine to resume this one |
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[5c81105] | 81 | }; |
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[78b3f52] | 82 | |
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[cb0e6de] | 83 | struct monitor_desc { |
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[5ea06d6] | 84 | struct spinlock lock; // spinlock to protect internal data |
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| 85 | struct thread_desc * owner; // current owner of the monitor |
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| 86 | struct __thread_queue_t entry_queue; // queue of threads that are blocked waiting for the monitor |
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[0c78741] | 87 | struct __condition_stack_t signal_stack; // stack of conditions to run next once we exit the monitor |
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[5ea06d6] | 88 | unsigned int recursion; // monitor routines can be called recursively, we need to keep track of that |
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[cb0e6de] | 89 | }; |
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| 90 | |
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[348006f] | 91 | struct thread_desc { |
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[5ea06d6] | 92 | struct coroutine_desc cor; // coroutine body used to store context |
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| 93 | struct monitor_desc mon; // monitor body used for mutual exclusion |
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| 94 | struct thread_desc * next; // instrusive link field for threads |
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| 95 | struct monitor_desc ** current_monitors; // currently held monitors |
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| 96 | unsigned short current_monitor_count; // number of currently held monitors |
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[8118303] | 97 | }; |
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| 98 | |
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[5c81105] | 99 | #endif //_INVOKE_H_ |
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| 100 | #else //! defined(__CFA_INVOKE_PRIVATE__) |
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| 101 | #ifndef _INVOKE_PRIVATE_H_ |
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| 102 | #define _INVOKE_PRIVATE_H_ |
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[b227f68] | 103 | |
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[596f987b] | 104 | struct machine_context_t { |
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[5c81105] | 105 | void *SP; |
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| 106 | void *FP; |
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| 107 | void *PC; |
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| 108 | }; |
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[78b3f52] | 109 | |
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[5c81105] | 110 | // assembler routines that performs the context switch |
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[b58a5772] | 111 | extern void CtxInvokeStub( void ); |
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[eb2e723] | 112 | void CtxSwitch( void * from, void * to ) asm ("CtxSwitch"); |
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[f32e53e] | 113 | |
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| 114 | #if defined( __x86_64__ ) |
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| 115 | #define CtxGet( ctx ) __asm__ ( \ |
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| 116 | "movq %%rsp,%0\n" \ |
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| 117 | "movq %%rbp,%1\n" \ |
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| 118 | : "=rm" (ctx.SP), "=rm" (ctx.FP) ) |
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| 119 | #elif defined( __i386__ ) |
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| 120 | #define CtxGet( ctx ) __asm__ ( \ |
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| 121 | "movl %%esp,%0\n" \ |
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| 122 | "movl %%ebp,%1\n" \ |
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| 123 | : "=rm" (ctx.SP), "=rm" (ctx.FP) ) |
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| 124 | #endif |
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[78b3f52] | 125 | |
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[5c81105] | 126 | #endif //_INVOKE_PRIVATE_H_ |
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| 127 | #endif //! defined(__CFA_INVOKE_PRIVATE__) |
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| 128 | #ifdef __CFORALL__ |
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| 129 | } |
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| 130 | #endif |
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[6b0b624] | 131 | |
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| 132 | // Local Variables: // |
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| 133 | // mode: c // |
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| 134 | // tab-width: 4 // |
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| 135 | // End: // |
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