Ignore:
Timestamp:
Dec 12, 2019, 10:04:15 AM (6 years ago)
Author:
Dmitry Kobets <dkobets@…>
Branches:
ADT, arm-eh, ast-experimental, enum, forall-pointer-decay, jacob/cs343-translation, master, new-ast-unique-expr, pthread-emulation, qualifiedEnum, stuck-waitfor-destruct
Children:
e752e4e
Parents:
aca6a54c (diff), 2cd949b (diff)
Note: this is a merge changeset, the changes displayed below correspond to the merge itself.
Use the (diff) links above to see all the changes relative to each parent.
Message:

Merge branch 'master' into vector-generic

Location:
libcfa/src/concurrency
Files:
14 edited

Legend:

Unmodified
Added
Removed
  • libcfa/src/concurrency/alarm.cfa

    raca6a54c r2fa5bd2  
    1010// Created On       : Fri Jun 2 11:31:25 2017
    1111// Last Modified By : Peter A. Buhr
    12 // Last Modified On : Fri May 25 06:25:47 2018
    13 // Update Count     : 67
     12// Last Modified On : Tue Dec  3 22:47:24 2019
     13// Update Count     : 68
    1414//
    1515
     
    4040void __kernel_set_timer( Duration alarm ) {
    4141        verifyf(alarm >= 1`us || alarm == 0, "Setting timer to < 1us (%jins)", alarm.tv);
    42         setitimer( ITIMER_REAL, &(itimerval){ alarm }, NULL );
     42        setitimer( ITIMER_REAL, &(itimerval){ alarm }, 0p );
    4343}
    4444
     
    113113                        this->tail = &this->head;
    114114                }
    115                 head->next = NULL;
     115                head->next = 0p;
    116116        }
    117117        verify( validate( this ) );
     
    127127                this->tail = it;
    128128        }
    129         n->next = NULL;
     129        n->next = 0p;
    130130
    131131        verify( validate( this ) );
  • libcfa/src/concurrency/coroutine.cfa

    raca6a54c r2fa5bd2  
    1010// Created On       : Mon Nov 28 12:27:26 2016
    1111// Last Modified By : Peter A. Buhr
    12 // Last Modified On : Fri Mar 30 17:20:57 2018
    13 // Update Count     : 9
     12// Last Modified On : Thu Dec  5 14:37:29 2019
     13// Update Count     : 15
    1414//
    1515
     
    9090
    9191void ?{}( coroutine_desc & this, const char * name, void * storage, size_t storageSize ) with( this ) {
    92         (this.context){NULL, NULL};
     92        (this.context){0p, 0p};
    9393        (this.stack){storage, storageSize};
    9494        this.name = name;
    9595        state = Start;
    96         starter = NULL;
    97         last = NULL;
    98         cancellation = NULL;
     96        starter = 0p;
     97        last = 0p;
     98        cancellation = 0p;
    9999}
    100100
     
    131131
    132132[void *, size_t] __stack_alloc( size_t storageSize ) {
    133         static const size_t stack_data_size = libCeiling( sizeof(__stack_t), 16 ); // minimum alignment
     133        const size_t stack_data_size = libCeiling( sizeof(__stack_t), 16 ); // minimum alignment
    134134        assert(__page_size != 0l);
    135135        size_t size = libCeiling( storageSize, 16 ) + stack_data_size;
     
    157157
    158158void __stack_prepare( __stack_info_t * this, size_t create_size ) {
    159         static const size_t stack_data_size = libCeiling( sizeof(__stack_t), 16 ); // minimum alignment
     159        const size_t stack_data_size = libCeiling( sizeof(__stack_t), 16 ); // minimum alignment
    160160        bool userStack;
    161161        void * storage;
  • libcfa/src/concurrency/coroutine.hfa

    raca6a54c r2fa5bd2  
    1010// Created On       : Mon Nov 28 12:27:26 2016
    1111// Last Modified By : Peter A. Buhr
    12 // Last Modified On : Fri Jun 21 17:49:39 2019
    13 // Update Count     : 9
     12// Last Modified On : Tue Dec  3 22:47:58 2019
     13// Update Count     : 10
    1414//
    1515
     
    3838void ^?{}( coroutine_desc & this );
    3939
    40 static inline void ?{}( coroutine_desc & this)                                       { this{ "Anonymous Coroutine", NULL, 0 }; }
    41 static inline void ?{}( coroutine_desc & this, size_t stackSize)                     { this{ "Anonymous Coroutine", NULL, stackSize }; }
     40static inline void ?{}( coroutine_desc & this)                                       { this{ "Anonymous Coroutine", 0p, 0 }; }
     41static inline void ?{}( coroutine_desc & this, size_t stackSize)                     { this{ "Anonymous Coroutine", 0p, stackSize }; }
    4242static inline void ?{}( coroutine_desc & this, void * storage, size_t storageSize )  { this{ "Anonymous Coroutine", storage, storageSize }; }
    43 static inline void ?{}( coroutine_desc & this, const char * name)                    { this{ name, NULL, 0 }; }
    44 static inline void ?{}( coroutine_desc & this, const char * name, size_t stackSize ) { this{ name, NULL, stackSize }; }
     43static inline void ?{}( coroutine_desc & this, const char * name)                    { this{ name, 0p, 0 }; }
     44static inline void ?{}( coroutine_desc & this, const char * name, size_t stackSize ) { this{ name, 0p, stackSize }; }
    4545
    4646//-----------------------------------------------------------------------------
     
    8989        src->state = Active;
    9090
    91         if( unlikely(src->cancellation != NULL) ) {
     91        if( unlikely(src->cancellation != 0p) ) {
    9292                _CtxCoroutine_Unwind(src->cancellation, src);
    9393        }
     
    128128        coroutine_desc * dst = get_coroutine(cor);
    129129
    130         if( unlikely(dst->context.SP == NULL) ) {
     130        if( unlikely(dst->context.SP == 0p) ) {
    131131                __stack_prepare(&dst->stack, 65000);
    132132                CtxStart(&cor, CtxInvokeCoroutine);
  • libcfa/src/concurrency/invoke.h

    raca6a54c r2fa5bd2  
    1010// Created On       : Tue Jan 17 12:27:26 2016
    1111// Last Modified By : Peter A. Buhr
    12 // Last Modified On : Sat Jun 22 18:19:13 2019
    13 // Update Count     : 40
     12// Last Modified On : Thu Dec  5 16:26:03 2019
     13// Update Count     : 44
    1414//
    1515
     
    4646        #ifdef __cforall
    4747        extern "Cforall" {
    48                 extern thread_local struct KernelThreadData {
     48                extern __attribute__((aligned(128))) thread_local struct KernelThreadData {
    4949                        struct thread_desc    * volatile this_thread;
    5050                        struct processor      * volatile this_processor;
     
    5555                                volatile bool in_progress;
    5656                        } preemption_state;
     57
     58                        uint32_t rand_seed;
    5759                } kernelTLS __attribute__ ((tls_model ( "initial-exec" )));
    5860        }
     
    205207
    206208                static inline void ?{}(__monitor_group_t & this) {
    207                         (this.data){NULL};
     209                        (this.data){0p};
    208210                        (this.size){0};
    209211                        (this.func){NULL};
  • libcfa/src/concurrency/kernel.cfa

    raca6a54c r2fa5bd2  
    1010// Created On       : Tue Jan 17 12:27:26 2017
    1111// Last Modified By : Peter A. Buhr
    12 // Last Modified On : Thu Jun 20 17:21:23 2019
    13 // Update Count     : 25
     12// Last Modified On : Thu Dec  5 16:25:52 2019
     13// Update Count     : 52
    1414//
    1515
     
    2626#include <signal.h>
    2727#include <unistd.h>
     28#include <limits.h>                                                                             // PTHREAD_STACK_MIN
     29#include <sys/mman.h>                                                                   // mprotect
    2830}
    2931
     
    4042//-----------------------------------------------------------------------------
    4143// Some assembly required
    42 #if   defined( __i386 )
     44#if defined( __i386 )
    4345        #define CtxGet( ctx )        \
    4446                __asm__ volatile (     \
     
    123125
    124126extern "C" {
    125 struct { __dllist_t(cluster) list; __spinlock_t lock; } __cfa_dbg_global_clusters;
     127        struct { __dllist_t(cluster) list; __spinlock_t lock; } __cfa_dbg_global_clusters;
    126128}
    127129
     
    131133// Global state
    132134thread_local struct KernelThreadData kernelTLS __attribute__ ((tls_model ( "initial-exec" ))) = {
     135        NULL,                                                                                           // cannot use 0p
    133136        NULL,
    134         NULL,
    135         { 1, false, false }
     137        { 1, false, false },
     138        6u //this should be seeded better but due to a bug calling rdtsc doesn't work
    136139};
    137140
     
    139142// Struct to steal stack
    140143struct current_stack_info_t {
    141         __stack_t * storage;            // pointer to stack object
    142         void *base;                             // base of stack
    143         void *limit;                    // stack grows towards stack limit
    144         void *context;                  // address of cfa_context_t
     144        __stack_t * storage;                                                            // pointer to stack object
     145        void * base;                                                                            // base of stack
     146        void * limit;                                                                           // stack grows towards stack limit
     147        void * context;                                                                         // address of cfa_context_t
    145148};
    146149
     
    171174        name = "Main Thread";
    172175        state = Start;
    173         starter = NULL;
    174         last = NULL;
    175         cancellation = NULL;
     176        starter = 0p;
     177        last = 0p;
     178        cancellation = 0p;
    176179}
    177180
     
    184187        self_mon.recursion = 1;
    185188        self_mon_p = &self_mon;
    186         next = NULL;
    187 
    188         node.next = NULL;
    189         node.prev = NULL;
     189        next = 0p;
     190
     191        node.next = 0p;
     192        node.prev = 0p;
    190193        doregister(curr_cluster, this);
    191194
     
    211214        terminated{ 0 };
    212215        do_terminate = false;
    213         preemption_alarm = NULL;
     216        preemption_alarm = 0p;
    214217        pending_preemption = false;
    215218        runner.proc = &this;
     
    231234        }
    232235
    233         pthread_join( kernel_thread, NULL );
     236        pthread_join( kernel_thread, 0p );
     237        free( this.stack );
    234238}
    235239
     
    260264//Main of the processor contexts
    261265void main(processorCtx_t & runner) {
     266        // Because of a bug, we couldn't initialized the seed on construction
     267        // Do it here
     268        kernelTLS.rand_seed ^= rdtscl();
     269
    262270        processor * this = runner.proc;
    263271        verify(this);
     
    273281                __cfaabi_dbg_print_safe("Kernel : core %p started\n", this);
    274282
    275                 thread_desc * readyThread = NULL;
    276                 for( unsigned int spin_count = 0; ! __atomic_load_n(&this->do_terminate, __ATOMIC_SEQ_CST); spin_count++ )
    277                 {
     283                thread_desc * readyThread = 0p;
     284                for( unsigned int spin_count = 0; ! __atomic_load_n(&this->do_terminate, __ATOMIC_SEQ_CST); spin_count++ ) {
    278285                        readyThread = nextThread( this->cltr );
    279286
    280                         if(readyThread)
    281                         {
     287                        if(readyThread) {
    282288                                verify( ! kernelTLS.preemption_state.enabled );
    283289
     
    290296
    291297                                spin_count = 0;
    292                         }
    293                         else
    294                         {
     298                        } else {
    295299                                // spin(this, &spin_count);
    296300                                halt(this);
     
    405409        processor * proc = (processor *) arg;
    406410        kernelTLS.this_processor = proc;
    407         kernelTLS.this_thread    = NULL;
     411        kernelTLS.this_thread    = 0p;
    408412        kernelTLS.preemption_state.[enabled, disable_count] = [false, 1];
    409413        // SKULLDUGGERY: We want to create a context for the processor coroutine
     
    418422
    419423        //Set global state
    420         kernelTLS.this_thread    = NULL;
     424        kernelTLS.this_thread = 0p;
    421425
    422426        //We now have a proper context from which to schedule threads
     
    434438        __cfaabi_dbg_print_safe("Kernel : core %p main ended (%p)\n", proc, &proc->runner);
    435439
    436         return NULL;
     440        return 0p;
     441}
     442
     443static void Abort( int ret, const char * func ) {
     444        if ( ret ) {                                                                            // pthread routines return errno values
     445                abort( "%s : internal error, error(%d) %s.", func, ret, strerror( ret ) );
     446        } // if
     447} // Abort
     448
     449void * create_pthread( pthread_t * pthread, void * (*start)(void *), void * arg ) {
     450        pthread_attr_t attr;
     451
     452        Abort( pthread_attr_init( &attr ), "pthread_attr_init" ); // initialize attribute
     453
     454        size_t stacksize;
     455        // default stack size, normally defined by shell limit
     456        Abort( pthread_attr_getstacksize( &attr, &stacksize ), "pthread_attr_getstacksize" );
     457        assert( stacksize >= PTHREAD_STACK_MIN );
     458
     459        void * stack;
     460        __cfaabi_dbg_debug_do(
     461                stack = memalign( __page_size, stacksize + __page_size );
     462                // pthread has no mechanism to create the guard page in user supplied stack.
     463                if ( mprotect( stack, __page_size, PROT_NONE ) == -1 ) {
     464                        abort( "mprotect : internal error, mprotect failure, error(%d) %s.", errno, strerror( errno ) );
     465                } // if
     466        );
     467        __cfaabi_dbg_no_debug_do(
     468                stack = malloc( stacksize );
     469        );
     470
     471        Abort( pthread_attr_setstack( &attr, stack, stacksize ), "pthread_attr_setstack" );
     472
     473        Abort( pthread_create( pthread, &attr, start, arg ), "pthread_create" );
     474        return stack;
    437475}
    438476
     
    440478        __cfaabi_dbg_print_safe("Kernel : Starting core %p\n", this);
    441479
    442         pthread_create( &this->kernel_thread, NULL, CtxInvokeProcessor, (void*)this );
     480        this->stack = create_pthread( &this->kernel_thread, CtxInvokeProcessor, (void *)this );
    443481
    444482        __cfaabi_dbg_print_safe("Kernel : core %p started\n", this);
     
    497535        verify( ! kernelTLS.preemption_state.enabled );
    498536
    499         verifyf( thrd->next == NULL, "Expected null got %p", thrd->next );
     537        verifyf( thrd->next == 0p, "Expected null got %p", thrd->next );
    500538
    501539        with( *thrd->curr_cluster ) {
     
    676714        void ?{}(processorCtx_t & this, processor * proc) {
    677715                (this.__cor){ "Processor" };
    678                 this.__cor.starter = NULL;
     716                this.__cor.starter = 0p;
    679717                this.proc = proc;
    680718        }
     
    685723                terminated{ 0 };
    686724                do_terminate = false;
    687                 preemption_alarm = NULL;
     725                preemption_alarm = 0p;
    688726                pending_preemption = false;
    689727                kernel_thread = pthread_self();
     
    819857        if(thrd) {
    820858                int len = snprintf( abort_text, abort_text_size, "Error occurred while executing thread %.256s (%p)", thrd->self_cor.name, thrd );
    821                 __cfaabi_dbg_bits_write( abort_text, len );
     859                __cfaabi_bits_write( STDERR_FILENO, abort_text, len );
    822860
    823861                if ( &thrd->self_cor != thrd->curr_cor ) {
    824862                        len = snprintf( abort_text, abort_text_size, " in coroutine %.256s (%p).\n", thrd->curr_cor->name, thrd->curr_cor );
    825                         __cfaabi_dbg_bits_write( abort_text, len );
     863                        __cfaabi_bits_write( STDERR_FILENO, abort_text, len );
    826864                }
    827865                else {
    828                         __cfaabi_dbg_bits_write( ".\n", 2 );
     866                        __cfaabi_bits_write( STDERR_FILENO, ".\n", 2 );
    829867                }
    830868        }
    831869        else {
    832870                int len = snprintf( abort_text, abort_text_size, "Error occurred outside of any thread.\n" );
    833                 __cfaabi_dbg_bits_write( abort_text, len );
     871                __cfaabi_bits_write( STDERR_FILENO, abort_text, len );
    834872        }
    835873}
     
    842880
    843881extern "C" {
    844         void __cfaabi_dbg_bits_acquire() {
     882        void __cfaabi_bits_acquire() {
    845883                lock( kernel_debug_lock __cfaabi_dbg_ctx2 );
    846884        }
    847885
    848         void __cfaabi_dbg_bits_release() {
     886        void __cfaabi_bits_release() {
    849887                unlock( kernel_debug_lock );
    850888        }
     
    879917
    880918void V(semaphore & this) with( this ) {
    881         thread_desc * thrd = NULL;
     919        thread_desc * thrd = 0p;
    882920        lock( lock __cfaabi_dbg_ctx2 );
    883921        count += 1;
  • libcfa/src/concurrency/kernel.hfa

    raca6a54c r2fa5bd2  
    1010// Created On       : Tue Jan 17 12:27:26 2017
    1111// Last Modified By : Peter A. Buhr
    12 // Last Modified On : Sat Jun 22 11:39:17 2019
    13 // Update Count     : 16
     12// Last Modified On : Wed Dec  4 07:54:51 2019
     13// Update Count     : 18
    1414//
    1515
     
    2020#include "invoke.h"
    2121#include "time_t.hfa"
     22#include "coroutine.hfa"
    2223
    2324extern "C" {
     
    8889static inline void ?{}(FinishAction & this) {
    8990        this.action_code = No_Action;
    90         this.thrd = NULL;
    91         this.lock = NULL;
     91        this.thrd = 0p;
     92        this.lock = 0p;
    9293}
    9394static inline void ^?{}(FinishAction &) {}
     
    134135        semaphore terminated;
    135136
     137        // pthread Stack
     138        void * stack;
     139
    136140        // Link lists fields
    137141        struct __dbg_node_proc {
  • libcfa/src/concurrency/kernel_private.hfa

    raca6a54c r2fa5bd2  
    1010// Created On       : Mon Feb 13 12:27:26 2017
    1111// Last Modified By : Peter A. Buhr
    12 // Last Modified On : Thu Mar 29 14:06:40 2018
    13 // Update Count     : 3
     12// Last Modified On : Sat Nov 30 19:25:02 2019
     13// Update Count     : 8
    1414//
    1515
     
    5757void main(processorCtx_t *);
    5858
     59void * create_pthread( pthread_t *, void * (*)(void *), void * );
     60
    5961static inline void wake_fast(processor * this) {
    6062        __cfaabi_dbg_print_safe("Kernel : Waking up processor %p\n", this);
     
    101103#define KERNEL_STORAGE(T,X) static char storage_##X[sizeof(T)]
    102104
     105static inline uint32_t tls_rand() {
     106        kernelTLS.rand_seed ^= kernelTLS.rand_seed << 6;
     107        kernelTLS.rand_seed ^= kernelTLS.rand_seed >> 21;
     108        kernelTLS.rand_seed ^= kernelTLS.rand_seed << 7;
     109        return kernelTLS.rand_seed;
     110}
     111
    103112
    104113void doregister( struct cluster & cltr );
  • libcfa/src/concurrency/monitor.cfa

    raca6a54c r2fa5bd2  
    1010// Created On       : Thd Feb 23 12:27:26 2017
    1111// Last Modified By : Peter A. Buhr
    12 // Last Modified On : Fri Mar 30 14:30:26 2018
    13 // Update Count     : 9
     12// Last Modified On : Wed Dec  4 07:55:14 2019
     13// Update Count     : 10
    1414//
    1515
     
    363363        this.waiting_thread = waiting_thread;
    364364        this.count = count;
    365         this.next = NULL;
     365        this.next = 0p;
    366366        this.user_info = user_info;
    367367}
     
    369369void ?{}(__condition_criterion_t & this ) with( this ) {
    370370        ready  = false;
    371         target = NULL;
    372         owner  = NULL;
    373         next   = NULL;
     371        target = 0p;
     372        owner  = 0p;
     373        next   = 0p;
    374374}
    375375
     
    378378        this.target = target;
    379379        this.owner  = &owner;
    380         this.next   = NULL;
     380        this.next   = 0p;
    381381}
    382382
     
    387387
    388388        // Check that everything is as expected
    389         assertf( this.monitors != NULL, "Waiting with no monitors (%p)", this.monitors );
     389        assertf( this.monitors != 0p, "Waiting with no monitors (%p)", this.monitors );
    390390        verifyf( this.monitor_count != 0, "Waiting with 0 monitors (%"PRIiFAST16")", this.monitor_count );
    391391        verifyf( this.monitor_count < 32u, "Excessive monitor count (%"PRIiFAST16")", this.monitor_count );
     
    449449
    450450        // Lock all monitors
    451         lock_all( this.monitors, NULL, count );
     451        lock_all( this.monitors, 0p, count );
    452452
    453453        //Pop the head of the waiting queue
     
    471471
    472472        //Check that everything is as expected
    473         verifyf( this.monitors != NULL, "Waiting with no monitors (%p)", this.monitors );
     473        verifyf( this.monitors != 0p, "Waiting with no monitors (%p)", this.monitors );
    474474        verifyf( this.monitor_count != 0, "Waiting with 0 monitors (%"PRIiFAST16")", this.monitor_count );
    475475
     
    674674
    675675static inline void reset_mask( monitor_desc * this ) {
    676         this->mask.accepted = NULL;
    677         this->mask.data = NULL;
     676        this->mask.accepted = 0p;
     677        this->mask.data = 0p;
    678678        this->mask.size = 0;
    679679}
     
    816816        }
    817817
    818         __cfaabi_dbg_print_safe( "Kernel :  Runing %i (%p)\n", ready2run, ready2run ? node->waiting_thread : NULL );
    819         return ready2run ? node->waiting_thread : NULL;
     818        __cfaabi_dbg_print_safe( "Kernel :  Runing %i (%p)\n", ready2run, ready2run ? node->waiting_thread : 0p );
     819        return ready2run ? node->waiting_thread : 0p;
    820820}
    821821
     
    824824        if( !this.monitors ) {
    825825                // __cfaabi_dbg_print_safe( "Branding\n" );
    826                 assertf( thrd->monitors.data != NULL, "No current monitor to brand condition %p", thrd->monitors.data );
     826                assertf( thrd->monitors.data != 0p, "No current monitor to brand condition %p", thrd->monitors.data );
    827827                this.monitor_count = thrd->monitors.size;
    828828
  • libcfa/src/concurrency/monitor.hfa

    raca6a54c r2fa5bd2  
    1010// Created On       : Thd Feb 23 12:27:26 2017
    1111// Last Modified By : Peter A. Buhr
    12 // Last Modified On : Sat Oct  7 18:06:45 2017
    13 // Update Count     : 10
     12// Last Modified On : Wed Dec  4 07:55:32 2019
     13// Update Count     : 11
    1414//
    1515
     
    3131        entry_queue{};
    3232        signal_stack{};
    33         owner         = NULL;
     33        owner         = 0p;
    3434        recursion     = 0;
    35         mask.accepted = NULL;
    36         mask.data     = NULL;
     35        mask.accepted = 0p;
     36        mask.data     = 0p;
    3737        mask.size     = 0;
    38         dtor_node     = NULL;
     38        dtor_node     = 0p;
    3939}
     40
     41static inline void ^?{}(monitor_desc & ) {}
    4042
    4143struct monitor_guard_t {
     
    120122
    121123static inline void ?{}( condition & this ) {
    122         this.monitors = NULL;
     124        this.monitors = 0p;
    123125        this.monitor_count = 0;
    124126}
  • libcfa/src/concurrency/mutex.cfa

    raca6a54c r2fa5bd2  
    1111// Author           : Thierry Delisle
    1212// Created On       : Fri May 25 01:37:11 2018
    13 // Last Modified By : Thierry Delisle
    14 // Last Modified On : Fri May 25 01:37:51 2018
    15 // Update Count     : 0
     13// Last Modified By : Peter A. Buhr
     14// Last Modified On : Wed Dec  4 09:16:39 2019
     15// Update Count     : 1
    1616//
    1717
     
    7373        this.lock{};
    7474        this.blocked_threads{};
    75         this.owner = NULL;
     75        this.owner = 0p;
    7676        this.recursion_count = 0;
    7777}
     
    8383void lock(recursive_mutex_lock & this) with(this) {
    8484        lock( lock __cfaabi_dbg_ctx2 );
    85         if( owner == NULL ) {
     85        if( owner == 0p ) {
    8686                owner = kernelTLS.this_thread;
    8787                recursion_count = 1;
     
    101101        bool ret = false;
    102102        lock( lock __cfaabi_dbg_ctx2 );
    103         if( owner == NULL ) {
     103        if( owner == 0p ) {
    104104                owner = kernelTLS.this_thread;
    105105                recursion_count = 1;
  • libcfa/src/concurrency/mutex.hfa

    raca6a54c r2fa5bd2  
    1111// Author           : Thierry Delisle
    1212// Created On       : Fri May 25 01:24:09 2018
    13 // Last Modified By : Thierry Delisle
    14 // Last Modified On : Fri May 25 01:24:12 2018
    15 // Update Count     : 0
     13// Last Modified By : Peter A. Buhr
     14// Last Modified On : Wed Dec  4 09:16:53 2019
     15// Update Count     : 1
    1616//
    1717
     
    110110
    111111        static inline void ?{}(lock_scope(L) & this) {
    112                 this.locks = NULL;
     112                this.locks = 0p;
    113113                this.count = 0;
    114114        }
  • libcfa/src/concurrency/preemption.cfa

    raca6a54c r2fa5bd2  
    1010// Created On       : Mon Jun 5 14:20:42 2017
    1111// Last Modified By : Peter A. Buhr
    12 // Last Modified On : Tue Jun  5 17:35:49 2018
    13 // Update Count     : 37
     12// Last Modified On : Thu Dec  5 16:34:05 2019
     13// Update Count     : 43
    1414//
    1515
     
    2424#include <string.h>
    2525#include <unistd.h>
     26#include <limits.h>                                                                             // PTHREAD_STACK_MIN
    2627}
    2728
     
    6465event_kernel_t * event_kernel;                        // kernel public handle to even kernel
    6566static pthread_t alarm_thread;                        // pthread handle to alarm thread
     67static void * alarm_stack;                                                        // pthread stack for alarm thread
    6668
    6769static void ?{}(event_kernel_t & this) with( this ) {
     
    8183// Get next expired node
    8284static inline alarm_node_t * get_expired( alarm_list_t * alarms, Time currtime ) {
    83         if( !alarms->head ) return NULL;                          // If no alarms return null
    84         if( alarms->head->alarm >= currtime ) return NULL;        // If alarms head not expired return null
    85         return pop(alarms);                                       // Otherwise just pop head
     85        if( !alarms->head ) return 0p;                                          // If no alarms return null
     86        if( alarms->head->alarm >= currtime ) return 0p;        // If alarms head not expired return null
     87        return pop(alarms);                                                                     // Otherwise just pop head
    8688}
    8789
    8890// Tick one frame of the Discrete Event Simulation for alarms
    8991static void tick_preemption() {
    90         alarm_node_t * node = NULL;                     // Used in the while loop but cannot be declared in the while condition
    91         alarm_list_t * alarms = &event_kernel->alarms;  // Local copy for ease of reading
    92         Time currtime = __kernel_get_time();                    // Check current time once so we everything "happens at once"
     92        alarm_node_t * node = 0p;                                                       // Used in the while loop but cannot be declared in the while condition
     93        alarm_list_t * alarms = &event_kernel->alarms;          // Local copy for ease of reading
     94        Time currtime = __kernel_get_time();                            // Check current time once so everything "happens at once"
    9395
    9496        //Loop throught every thing expired
     
    243245        sigaddset( &mask, sig );
    244246
    245         if ( pthread_sigmask( SIG_UNBLOCK, &mask, NULL ) == -1 ) {
     247        if ( pthread_sigmask( SIG_UNBLOCK, &mask, 0p ) == -1 ) {
    246248            abort( "internal error, pthread_sigmask" );
    247249        }
     
    254256        sigaddset( &mask, sig );
    255257
    256         if ( pthread_sigmask( SIG_BLOCK, &mask, NULL ) == -1 ) {
     258        if ( pthread_sigmask( SIG_BLOCK, &mask, 0p ) == -1 ) {
    257259            abort( "internal error, pthread_sigmask" );
    258260        }
     
    301303
    302304        // Setup proper signal handlers
    303         __cfaabi_sigaction( SIGUSR1, sigHandler_ctxSwitch, SA_SIGINFO | SA_RESTART );         // CtxSwitch handler
     305        __cfaabi_sigaction( SIGUSR1, sigHandler_ctxSwitch, SA_SIGINFO | SA_RESTART ); // CtxSwitch handler
    304306
    305307        signal_block( SIGALRM );
    306308
    307         pthread_create( &alarm_thread, NULL, alarm_loop, NULL );
     309        alarm_stack = create_pthread( &alarm_thread, alarm_loop, 0p );
    308310}
    309311
     
    316318        sigset_t mask;
    317319        sigfillset( &mask );
    318         sigprocmask( SIG_BLOCK, &mask, NULL );
     320        sigprocmask( SIG_BLOCK, &mask, 0p );
    319321
    320322        // Notify the alarm thread of the shutdown
     
    323325
    324326        // Wait for the preemption thread to finish
    325         pthread_join( alarm_thread, NULL );
     327
     328        pthread_join( alarm_thread, 0p );
     329        free( alarm_stack );
    326330
    327331        // Preemption is now fully stopped
     
    380384        static_assert( sizeof( sigset_t ) == sizeof( cxt->uc_sigmask ), "Expected cxt->uc_sigmask to be of sigset_t" );
    381385        #endif
    382         if ( pthread_sigmask( SIG_SETMASK, (sigset_t *)&(cxt->uc_sigmask), NULL ) == -1 ) {
     386        if ( pthread_sigmask( SIG_SETMASK, (sigset_t *)&(cxt->uc_sigmask), 0p ) == -1 ) {
    383387                abort( "internal error, sigprocmask" );
    384388        }
     
    399403        sigset_t mask;
    400404        sigfillset(&mask);
    401         if ( pthread_sigmask( SIG_BLOCK, &mask, NULL ) == -1 ) {
     405        if ( pthread_sigmask( SIG_BLOCK, &mask, 0p ) == -1 ) {
    402406            abort( "internal error, pthread_sigmask" );
    403407        }
     
    420424                                        {__cfaabi_dbg_print_buffer_decl( " KERNEL: Spurious wakeup %d.\n", err );}
    421425                                        continue;
    422                         case EINVAL :
     426                                case EINVAL :
    423427                                        abort( "Timeout was invalid." );
    424428                                default:
     
    453457EXIT:
    454458        __cfaabi_dbg_print_safe( "Kernel : Preemption thread stopping\n" );
    455         return NULL;
     459        return 0p;
    456460}
    457461
     
    466470        sigset_t oldset;
    467471        int ret;
    468         ret = pthread_sigmask(0, NULL, &oldset);
     472        ret = pthread_sigmask(0, 0p, &oldset);
    469473        if(ret != 0) { abort("ERROR sigprocmask returned %d", ret); }
    470474
  • libcfa/src/concurrency/thread.cfa

    raca6a54c r2fa5bd2  
    1010// Created On       : Tue Jan 17 12:27:26 2017
    1111// Last Modified By : Peter A. Buhr
    12 // Last Modified On : Fri Mar 30 17:19:52 2018
    13 // Update Count     : 8
     12// Last Modified On : Wed Dec  4 09:17:49 2019
     13// Update Count     : 9
    1414//
    1515
     
    3333// Thread ctors and dtors
    3434void ?{}(thread_desc & this, const char * const name, cluster & cl, void * storage, size_t storageSize ) with( this ) {
    35         context{ NULL, NULL };
     35        context{ 0p, 0p };
    3636        self_cor{ name, storage, storageSize };
    3737        state = Start;
     
    4141        self_mon_p = &self_mon;
    4242        curr_cluster = &cl;
    43         next = NULL;
     43        next = 0p;
    4444
    45         node.next = NULL;
    46         node.prev = NULL;
     45        node.next = 0p;
     46        node.prev = 0p;
    4747        doregister(curr_cluster, this);
    4848
  • libcfa/src/concurrency/thread.hfa

    raca6a54c r2fa5bd2  
    1010// Created On       : Tue Jan 17 12:27:26 2017
    1111// Last Modified By : Peter A. Buhr
    12 // Last Modified On : Fri Jun 21 17:51:33 2019
    13 // Update Count     : 5
     12// Last Modified On : Wed Dec  4 09:18:14 2019
     13// Update Count     : 6
    1414//
    1515
     
    6161void ^?{}(thread_desc & this);
    6262
    63 static inline void ?{}(thread_desc & this)                                                                  { this{ "Anonymous Thread", *mainCluster, NULL, 65000 }; }
    64 static inline void ?{}(thread_desc & this, size_t stackSize )                                               { this{ "Anonymous Thread", *mainCluster, NULL, stackSize }; }
     63static inline void ?{}(thread_desc & this)                                                                  { this{ "Anonymous Thread", *mainCluster, 0p, 65000 }; }
     64static inline void ?{}(thread_desc & this, size_t stackSize )                                               { this{ "Anonymous Thread", *mainCluster, 0p, stackSize }; }
    6565static inline void ?{}(thread_desc & this, void * storage, size_t storageSize )                             { this{ "Anonymous Thread", *mainCluster, storage, storageSize }; }
    66 static inline void ?{}(thread_desc & this, struct cluster & cl )                                            { this{ "Anonymous Thread", cl, NULL, 65000 }; }
    67 static inline void ?{}(thread_desc & this, struct cluster & cl, size_t stackSize )                          { this{ "Anonymous Thread", cl, NULL, stackSize }; }
     66static inline void ?{}(thread_desc & this, struct cluster & cl )                                            { this{ "Anonymous Thread", cl, 0p, 65000 }; }
     67static inline void ?{}(thread_desc & this, struct cluster & cl, size_t stackSize )                          { this{ "Anonymous Thread", cl, 0p, stackSize }; }
    6868static inline void ?{}(thread_desc & this, struct cluster & cl, void * storage, size_t storageSize )        { this{ "Anonymous Thread", cl, storage, storageSize }; }
    69 static inline void ?{}(thread_desc & this, const char * const name)                                         { this{ name, *mainCluster, NULL, 65000 }; }
    70 static inline void ?{}(thread_desc & this, const char * const name, struct cluster & cl )                   { this{ name, cl, NULL, 65000 }; }
    71 static inline void ?{}(thread_desc & this, const char * const name, struct cluster & cl, size_t stackSize ) { this{ name, cl, NULL, stackSize }; }
     69static inline void ?{}(thread_desc & this, const char * const name)                                         { this{ name, *mainCluster, 0p, 65000 }; }
     70static inline void ?{}(thread_desc & this, const char * const name, struct cluster & cl )                   { this{ name, cl, 0p, 65000 }; }
     71static inline void ?{}(thread_desc & this, const char * const name, struct cluster & cl, size_t stackSize ) { this{ name, cl, 0p, stackSize }; }
    7272
    7373//-----------------------------------------------------------------------------
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