[bb662027] | 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 | // clib/cfathread.cfa -- |
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| 8 | // |
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| 9 | // Author : Thierry Delisle |
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| 10 | // Created On : Tue Sep 22 15:31:20 2020 |
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| 11 | // Last Modified By : |
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| 12 | // Last Modified On : |
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| 13 | // Update Count : |
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| 14 | // |
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| 15 | |
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[a1538cd] | 16 | #include "fstream.hfa" |
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| 17 | #include "locks.hfa" |
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[bb662027] | 18 | #include "kernel.hfa" |
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[d971c8d] | 19 | #include "stats.hfa" |
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[bb662027] | 20 | #include "thread.hfa" |
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[a1538cd] | 21 | #include "time.hfa" |
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[bb662027] | 22 | |
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[a1538cd] | 23 | #include "cfathread.h" |
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| 24 | |
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[a5e7233] | 25 | extern void ?{}(processor &, const char[], cluster &, $thread *); |
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| 26 | extern "C" { |
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| 27 | extern void __cfactx_invoke_thread(void (*main)(void *), void * this); |
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| 28 | } |
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| 29 | |
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| 30 | //================================================================================ |
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| 31 | // Thread run y the C Interface |
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| 32 | |
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[a1538cd] | 33 | struct cfathread_object { |
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| 34 | $thread self; |
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| 35 | void * (*themain)( void * ); |
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| 36 | void * arg; |
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| 37 | void * ret; |
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[bb662027] | 38 | }; |
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[a1538cd] | 39 | void main(cfathread_object & this); |
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| 40 | void ^?{}(cfathread_object & mutex this); |
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| 41 | |
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| 42 | static inline $thread * get_thread( cfathread_object & this ) { return &this.self; } |
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| 43 | |
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| 44 | typedef ThreadCancelled(cfathread_object) cfathread_exception; |
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| 45 | typedef ThreadCancelled_vtable(cfathread_object) cfathread_vtable; |
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| 46 | |
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| 47 | void defaultResumptionHandler(ThreadCancelled(cfathread_object) & except) { |
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| 48 | abort | "A thread was cancelled"; |
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| 49 | } |
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[bb662027] | 50 | |
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[a1538cd] | 51 | cfathread_vtable _cfathread_vtable_instance; |
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| 52 | |
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[8edbe40] | 53 | cfathread_vtable & const _default_vtable = _cfathread_vtable_instance; |
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| 54 | |
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[a1538cd] | 55 | cfathread_vtable const & get_exception_vtable(cfathread_exception *) { |
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| 56 | return _cfathread_vtable_instance; |
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| 57 | } |
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| 58 | |
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| 59 | static void ?{}( cfathread_object & this, cluster & cl, void *(*themain)( void * ), void * arg ) { |
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[bb662027] | 60 | this.themain = themain; |
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[a1538cd] | 61 | this.arg = arg; |
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[4150779] | 62 | (this.self){"C-thread", cl}; |
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[a1538cd] | 63 | __thrd_start(this, main); |
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[bb662027] | 64 | } |
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| 65 | |
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[a1538cd] | 66 | void ^?{}(cfathread_object & mutex this) { |
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| 67 | ^(this.self){}; |
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| 68 | } |
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| 69 | |
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| 70 | void main( cfathread_object & this ) { |
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| 71 | __attribute__((unused)) void * const thrd_obj = (void*)&this; |
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| 72 | __attribute__((unused)) void * const thrd_hdl = (void*)active_thread(); |
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| 73 | /* paranoid */ verify( thrd_obj == thrd_hdl ); |
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| 74 | |
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| 75 | this.ret = this.themain( this.arg ); |
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[bb662027] | 76 | } |
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| 77 | |
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[a5e7233] | 78 | //================================================================================ |
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| 79 | // Special Init Thread responsible for the initialization or processors |
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| 80 | struct __cfainit { |
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| 81 | $thread self; |
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| 82 | void (*init)( void * ); |
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| 83 | void * arg; |
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| 84 | }; |
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| 85 | void main(__cfainit & this); |
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| 86 | void ^?{}(__cfainit & mutex this); |
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| 87 | |
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| 88 | static inline $thread * get_thread( __cfainit & this ) { return &this.self; } |
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| 89 | |
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| 90 | typedef ThreadCancelled(__cfainit) __cfainit_exception; |
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| 91 | typedef ThreadCancelled_vtable(__cfainit) __cfainit_vtable; |
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| 92 | |
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| 93 | void defaultResumptionHandler(ThreadCancelled(__cfainit) & except) { |
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| 94 | abort | "The init thread was cancelled"; |
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| 95 | } |
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| 96 | |
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| 97 | __cfainit_vtable ___cfainit_vtable_instance; |
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| 98 | |
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| 99 | __cfainit_vtable const & get_exception_vtable(__cfainit_exception *) { |
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| 100 | return ___cfainit_vtable_instance; |
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| 101 | } |
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| 102 | |
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| 103 | static void ?{}( __cfainit & this, void (*init)( void * ), void * arg ) { |
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| 104 | this.init = init; |
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| 105 | this.arg = arg; |
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[4150779] | 106 | (this.self){"Processir Init"}; |
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[a5e7233] | 107 | |
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| 108 | // Don't use __thrd_start! just prep the context manually |
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| 109 | $thread * this_thrd = get_thread(this); |
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| 110 | void (*main_p)(__cfainit &) = main; |
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| 111 | |
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| 112 | disable_interrupts(); |
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| 113 | __cfactx_start(main_p, get_coroutine(this), this, __cfactx_invoke_thread); |
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| 114 | |
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| 115 | this_thrd->context.[SP, FP] = this_thrd->self_cor.context.[SP, FP]; |
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| 116 | /* paranoid */ verify( this_thrd->context.SP ); |
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| 117 | |
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| 118 | this_thrd->state = Ready; |
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[a3821fa] | 119 | enable_interrupts(); |
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[a5e7233] | 120 | } |
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| 121 | |
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| 122 | void ^?{}(__cfainit & mutex this) { |
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| 123 | ^(this.self){}; |
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| 124 | } |
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| 125 | |
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| 126 | void main( __cfainit & this ) { |
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| 127 | __attribute__((unused)) void * const thrd_obj = (void*)&this; |
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| 128 | __attribute__((unused)) void * const thrd_hdl = (void*)active_thread(); |
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| 129 | /* paranoid */ verify( thrd_obj == thrd_hdl ); |
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| 130 | |
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| 131 | this.init( this.arg ); |
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| 132 | } |
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[bb662027] | 133 | |
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[a5e7233] | 134 | //================================================================================ |
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| 135 | // Main Api |
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[bb662027] | 136 | extern "C" { |
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[a1538cd] | 137 | int cfathread_cluster_create(cfathread_cluster_t * cl) __attribute__((nonnull(1))) { |
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| 138 | *cl = new(); |
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| 139 | return 0; |
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| 140 | } |
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| 141 | |
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| 142 | cfathread_cluster_t cfathread_cluster_self(void) { |
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| 143 | return active_cluster(); |
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| 144 | } |
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| 145 | |
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[d971c8d] | 146 | int cfathread_cluster_print_stats( cfathread_cluster_t cl ) { |
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| 147 | #if !defined(__CFA_NO_STATISTICS__) |
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| 148 | print_stats_at_exit( *cl, CFA_STATS_READY_Q | CFA_STATS_IO ); |
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| 149 | print_stats_now( *cl, CFA_STATS_READY_Q | CFA_STATS_IO ); |
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| 150 | #endif |
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| 151 | return 0; |
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| 152 | } |
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| 153 | |
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[a1538cd] | 154 | int cfathread_cluster_add_worker(cfathread_cluster_t cl, pthread_t* tid, void (*init_routine) (void *), void * arg) { |
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[a5e7233] | 155 | __cfainit * it = 0p; |
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| 156 | if(init_routine) { |
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| 157 | it = alloc(); |
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| 158 | (*it){init_routine, arg}; |
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| 159 | } |
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[a1538cd] | 160 | processor * proc = alloc(); |
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[a5e7233] | 161 | (*proc){ "C-processor", *cl, get_thread(*it) }; |
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| 162 | |
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| 163 | // Wait for the init thread to return before continuing |
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| 164 | if(it) { |
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| 165 | ^(*it){}; |
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| 166 | free(it); |
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| 167 | } |
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| 168 | |
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[a1538cd] | 169 | if(tid) *tid = proc->kernel_thread; |
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| 170 | return 0; |
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| 171 | } |
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| 172 | |
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| 173 | int cfathread_cluster_pause (cfathread_cluster_t) { |
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| 174 | abort | "Pausing clusters is not supported"; |
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| 175 | exit(1); |
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| 176 | } |
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| 177 | |
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| 178 | int cfathread_cluster_resume(cfathread_cluster_t) { |
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| 179 | abort | "Resuming clusters is not supported"; |
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| 180 | exit(1); |
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| 181 | } |
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| 182 | |
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[bb662027] | 183 | //-------------------- |
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[a1538cd] | 184 | // Thread attributes |
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| 185 | int cfathread_attr_init(cfathread_attr_t *attr) __attribute__((nonnull (1))) { |
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| 186 | attr->cl = active_cluster(); |
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| 187 | return 0; |
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[bb662027] | 188 | } |
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| 189 | |
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[a1538cd] | 190 | //-------------------- |
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| 191 | // Thread |
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[9e27f69] | 192 | int cfathread_create( cfathread_t * handle, const cfathread_attr_t * attr, void *(*main)( void * ), void * arg ) __attribute__((nonnull (1))) { |
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[a1538cd] | 193 | cluster * cl = attr ? attr->cl : active_cluster(); |
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| 194 | cfathread_t thrd = alloc(); |
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| 195 | (*thrd){ *cl, main, arg }; |
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| 196 | *handle = thrd; |
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| 197 | return 0; |
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| 198 | } |
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| 199 | |
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| 200 | int cfathread_join( cfathread_t thrd, void ** retval ) { |
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| 201 | void * ret = join( *thrd ).ret; |
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[f03e11d] | 202 | ^( *thrd ){}; |
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| 203 | free(thrd); |
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[a1538cd] | 204 | if(retval) { |
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| 205 | *retval = ret; |
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| 206 | } |
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| 207 | return 0; |
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| 208 | } |
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| 209 | |
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[9e27f69] | 210 | int cfathread_get_errno(void) { |
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| 211 | return errno; |
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| 212 | } |
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| 213 | |
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[a1538cd] | 214 | cfathread_t cfathread_self(void) { |
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| 215 | return (cfathread_t)active_thread(); |
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| 216 | } |
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| 217 | |
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| 218 | int cfathread_usleep(useconds_t usecs) { |
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| 219 | sleep(usecs`us); |
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| 220 | return 0; |
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| 221 | } |
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| 222 | |
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| 223 | int cfathread_sleep(unsigned int secs) { |
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| 224 | sleep(secs`s); |
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| 225 | return 0; |
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[bb662027] | 226 | } |
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| 227 | |
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| 228 | void cfathread_park( void ) { |
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[e235429] | 229 | park(); |
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[bb662027] | 230 | } |
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| 231 | |
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[a1538cd] | 232 | void cfathread_unpark( cfathread_t thrd ) { |
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[e235429] | 233 | unpark( *thrd ); |
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[bb662027] | 234 | } |
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| 235 | |
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| 236 | void cfathread_yield( void ) { |
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| 237 | yield(); |
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| 238 | } |
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| 239 | |
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[a1538cd] | 240 | typedef struct cfathread_mutex * cfathread_mutex_t; |
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| 241 | |
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| 242 | //-------------------- |
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| 243 | // Mutex |
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| 244 | struct cfathread_mutex { |
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| 245 | single_acquisition_lock impl; |
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| 246 | }; |
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| 247 | int cfathread_mutex_init(cfathread_mutex_t *restrict mut, const cfathread_mutexattr_t *restrict) __attribute__((nonnull (1))) { *mut = new(); return 0; } |
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| 248 | int cfathread_mutex_destroy(cfathread_mutex_t *mut) __attribute__((nonnull (1))) { delete( *mut ); return 0; } |
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[d27b6be] | 249 | int cfathread_mutex_lock (cfathread_mutex_t *mut) __attribute__((nonnull (1))) { lock( (*mut)->impl ); return 0; } |
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| 250 | int cfathread_mutex_unlock (cfathread_mutex_t *mut) __attribute__((nonnull (1))) { unlock( (*mut)->impl ); return 0; } |
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| 251 | int cfathread_mutex_trylock(cfathread_mutex_t *mut) __attribute__((nonnull (1))) { |
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| 252 | bool ret = try_lock( (*mut)->impl ); |
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| 253 | if( ret ) return 0; |
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| 254 | else return EBUSY; |
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| 255 | } |
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[a1538cd] | 256 | |
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| 257 | //-------------------- |
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| 258 | // Condition |
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| 259 | struct cfathread_condition { |
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| 260 | condition_variable(single_acquisition_lock) impl; |
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| 261 | }; |
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| 262 | int cfathread_cond_init(cfathread_cond_t *restrict cond, const cfathread_condattr_t *restrict) __attribute__((nonnull (1))) { *cond = new(); return 0; } |
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| 263 | int cfathread_cond_signal(cfathread_cond_t *cond) __attribute__((nonnull (1))) { notify_one( (*cond)->impl ); return 0; } |
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| 264 | int cfathread_cond_wait(cfathread_cond_t *restrict cond, cfathread_mutex_t *restrict mut) __attribute__((nonnull (1,2))) { wait( (*cond)->impl, (*mut)->impl ); return 0; } |
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| 265 | int cfathread_cond_timedwait(cfathread_cond_t *restrict cond, cfathread_mutex_t *restrict mut, const struct timespec *restrict abstime) __attribute__((nonnull (1,2,3))) { |
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| 266 | Time t = { *abstime }; |
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| 267 | if( wait( (*cond)->impl, (*mut)->impl, t ) ) { |
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| 268 | return 0; |
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| 269 | } |
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| 270 | errno = ETIMEDOUT; |
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| 271 | return ETIMEDOUT; |
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| 272 | } |
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| 273 | } |
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| 274 | |
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| 275 | #include <iofwd.hfa> |
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| 276 | |
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| 277 | extern "C" { |
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| 278 | #include <unistd.h> |
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| 279 | #include <sys/types.h> |
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| 280 | #include <sys/socket.h> |
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| 281 | |
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[bb662027] | 282 | //-------------------- |
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[a1538cd] | 283 | // IO operations |
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| 284 | int cfathread_socket(int domain, int type, int protocol) { |
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| 285 | return socket(domain, type, protocol); |
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| 286 | } |
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| 287 | int cfathread_bind(int socket, const struct sockaddr *address, socklen_t address_len) { |
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| 288 | return bind(socket, address, address_len); |
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| 289 | } |
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| 290 | |
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| 291 | int cfathread_listen(int socket, int backlog) { |
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| 292 | return listen(socket, backlog); |
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| 293 | } |
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| 294 | |
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| 295 | int cfathread_accept(int socket, struct sockaddr *restrict address, socklen_t *restrict address_len) { |
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| 296 | return cfa_accept4(socket, address, address_len, 0, CFA_IO_LAZY); |
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| 297 | } |
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| 298 | |
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| 299 | int cfathread_connect(int socket, const struct sockaddr *address, socklen_t address_len) { |
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| 300 | return cfa_connect(socket, address, address_len, CFA_IO_LAZY); |
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| 301 | } |
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| 302 | |
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| 303 | int cfathread_dup(int fildes) { |
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| 304 | return dup(fildes); |
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| 305 | } |
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[bb662027] | 306 | |
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[a1538cd] | 307 | int cfathread_close(int fildes) { |
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| 308 | return cfa_close(fildes, CFA_IO_LAZY); |
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[bb662027] | 309 | } |
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[a1538cd] | 310 | |
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| 311 | ssize_t cfathread_sendmsg(int socket, const struct msghdr *message, int flags) { |
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| 312 | return cfa_sendmsg(socket, message, flags, CFA_IO_LAZY); |
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| 313 | } |
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| 314 | |
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| 315 | ssize_t cfathread_write(int fildes, const void *buf, size_t nbyte) { |
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[86dc95d] | 316 | // Use send rather then write for socket since it's faster |
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| 317 | return cfa_send(fildes, buf, nbyte, 0, CFA_IO_LAZY); |
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[a1538cd] | 318 | } |
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| 319 | |
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| 320 | ssize_t cfathread_recvfrom(int socket, void *restrict buffer, size_t length, int flags, struct sockaddr *restrict address, socklen_t *restrict address_len) { |
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| 321 | struct iovec iov; |
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| 322 | iov.iov_base = buffer; |
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| 323 | iov.iov_len = length; |
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| 324 | |
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| 325 | struct msghdr msg; |
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| 326 | msg.msg_name = address; |
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| 327 | msg.msg_namelen = address_len ? (socklen_t)*address_len : (socklen_t)0; |
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| 328 | msg.msg_iov = &iov; |
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| 329 | msg.msg_iovlen = 1; |
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| 330 | msg.msg_control = 0p; |
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| 331 | msg.msg_controllen = 0; |
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| 332 | |
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| 333 | ssize_t ret = cfa_recvmsg(socket, &msg, flags, CFA_IO_LAZY); |
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| 334 | |
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| 335 | if(address_len) *address_len = msg.msg_namelen; |
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| 336 | return ret; |
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| 337 | } |
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| 338 | |
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| 339 | ssize_t cfathread_read(int fildes, void *buf, size_t nbyte) { |
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[86dc95d] | 340 | // Use recv rather then read for socket since it's faster |
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| 341 | return cfa_recv(fildes, buf, nbyte, 0, CFA_IO_LAZY); |
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[a1538cd] | 342 | } |
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| 343 | |
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[45444c3] | 344 | } |
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