pike.git/src/svalue.h:45637c689342fbdb8ee30cb1f6dbe5e587f2f303

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528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 /*\ ||| This file a part of Pike, and is copyright by Fredrik Hubinette ||| Pike is distributed as GPL (General Public License) ||| See the files COPYING and DISCLAIMER for more information. \*/ /* * $Id: svalue.h,v 1.87 2001/04/07 07:38:25 hubbe Exp $ */ #ifndef SVALUE_H #define SVALUE_H #include "global.h" #ifndef STRUCT_ARRAY_DECLARED #define STRUCT_ARRAY_DECLARED struct array; #endif #ifndef STRUCT_MAPPING_DECLARED #define STRUCT_MAPPING_DECLARED struct mapping; #endif #ifndef STRUCT_MULTISET_DECLARED #define STRUCT_MULTISET_DECLARED struct multiset; #endif #ifndef STRUCT_OBJECT_DECLARED #define STRUCT_OBJECT_DECLARED struct object; #endif #ifndef STRUCT_PROGRAM_DECLARED #define STRUCT_PROGRAM_DECLARED struct program; #endif #ifndef STRUCT_PIKE_STRING_DECLARED #define STRUCT_PIKE_STRING_DECLARED struct pike_string; #endif #ifndef STRUCT_CALLABLE_DECLARED #define STRUCT_CALLABLE_DECLARED struct callable; #endif struct processing { struct processing *next; void *pointer_a, *pointer_b; }; struct ref_dummy; union anything { struct callable *efun; struct array *array; struct mapping *mapping; struct multiset *multiset; struct object *object; struct program *program; struct pike_string *string; struct pike_type *type; INT32 *refs; struct ref_dummy *dummy; INT_TYPE integer; FLOAT_TYPE float_number; struct svalue *lval; /* only used on stack */ union anything *short_lval; /* only used on stack */ }; #ifndef STRUCT_SVALUE_DECLARED #define STRUCT_SVALUE_DECLARED #endif struct svalue { unsigned INT16 type; unsigned INT16 subtype; union anything u; }; #define PIKE_T_ARRAY 0 #define PIKE_T_MAPPING 1 #define PIKE_T_MULTISET 2 #define PIKE_T_OBJECT 3 #define PIKE_T_FUNCTION 4 #define PIKE_T_PROGRAM 5 #define PIKE_T_STRING 6 #define PIKE_T_TYPE 7 #define PIKE_T_INT 8 #define PIKE_T_FLOAT 9 #define PIKE_T_ZERO 14 /* Can return 0, but nothing else */ #define T_UNFINISHED 15 /* Reserved for the garbage-collector */ #define T_VOID 16 /* Can't return any value */ #define T_MANY 17 #define PIKE_T_RING 240 #define PIKE_T_NAME 241 /* Only supported in USE_PIKE_TYPE-mode. */ #define T_MAPPING_DATA 242 #define PIKE_T_SCOPE 243 /* Not supported yet */ #define PIKE_T_TUPLE 244 /* Not supported yet */ #define T_ASSIGN 245 #define T_DELETED 246 #define PIKE_T_UNKNOWN 247 #define T_SHORT_LVALUE 248 #define T_LVALUE 249 #define T_ARRAY_LVALUE 250 #define PIKE_T_MIXED 251 #define T_NOT 253 #define T_AND 254 #define T_OR 255 #define tArr(VAL) "\000" VAL #define tArray tArr(tMix) #define tMap(IND,VAL) "\001" IND VAL #define tMapping tMap(tMix,tMix) #define tSet(IND) "\002" IND #define tMultiset tSet(tMix) #define tObj "\003\000\000\000\000\000" #define tFuncV(ARGS,REST,RET) MagictFuncV(RET,REST,ARGS) #define tFunc(ARGS,RET) MagictFunc(RET,ARGS) #define tTuple(T1,T2) "\364" T1 T2 #define tTriple(T1,T2,T3) tTuple(T1, tTuple(T2, T3)) #define tQuad(T1,T2,T3,T4) tTriple(tTuple(T1, T2), T3, T4) /* These two magic funcions are used to make MSVC++ work * even if 'ARGS' is empty. */ #define MagictFuncV(RET,REST,ARGS) "\004" ARGS "\021" REST RET #define MagictFunc(RET,ARGS) tFuncV(ARGS "", tVoid, RET) #define tFunction tFuncV("" ,tOr(tZero,tVoid),tOr(tMix,tVoid)) #define tNone "" #define tPrg(X) "\005" X #define tProgram(X) "\005" X #define tStr "\006" #define tString "\006" #define tType(T) "\007" T #define tInt "\010\200\000\000\000\177\377\377\377" #define tInt0 "\010\000\000\000\000\000\000\000\000" #define tInt1 "\010\000\000\000\001\000\000\000\001" #define tInt2 "\010\000\000\000\002\000\000\000\002" #define tInt01 "\010\000\000\000\000\000\000\000\001" #define tInt02 "\010\000\000\000\000\000\000\000\002" #define tInt03 "\010\000\000\000\000\000\000\000\003" #define tInt04 "\010\000\000\000\000\000\000\000\004" #define tInt05 "\010\000\000\000\000\000\000\000\005" #define tInt06 "\010\000\000\000\000\000\000\000\006" #define tIntPos "\010\000\000\000\000\177\377\377\377" #define tInt1Plus "\010\000\000\000\001\177\377\377\377" #define tInt2Plus "\010\000\000\000\002\177\377\377\377" #define tByte "\010\000\000\000\000\000\000\000\377" #define tFlt "\011" #define tFloat "\011" #define tZero "\016" #define tVoid "\020" #define tVar(X) #X #define tSetvar(X,Y) "\365" #X Y #define tScope(X,T) "\363" #X Y #define tNot(X) "\375" X #define tAnd(X,Y) "\376" X Y #define tOr(X,Y) "\377" X Y #define tOr3(X,Y,Z) tOr(X,tOr(Y,Z)) #define tOr4(X,Y,Z,A) tOr(X,tOr(Y,tOr(Z,A))) #define tOr5(X,Y,Z,A,B) tOr(X,tOr(Y,tOr(Z,tOr(A,B)))) #define tOr6(X,Y,Z,A,B,C) tOr(X,tOr(Y,tOr(Z,tOr(A,tOr(B,C))))) #define tOr7(X,Y,Z,A,B,C,D) tOr(X,tOr(Y,tOr(Z,tOr(A,tOr(B,tOr(C,D)))))) #define tOr8(A,B,C,D,E,F,G,H) tOr(A,tOr7(B,C,D,E,F,G,H)) #define tOr9(A,B,C,D,E,F,G,H,I) tOr(A,tOr8(B,C,D,E,F,G,H,I)) #define tMix "\373" #define tMixed "\373" #define tComplex tOr6(tArray,tMapping,tMultiset,tObj,tFunction,tPrg(tObj)) #define tStringIndicable tOr5(tMapping,tObj,tFunction,tPrg(tObj),tMultiset) #define tRef tOr(tString,tComplex) #define tIfnot(X,Y) tAnd(tNot(X),Y) #define tAny tOr(tVoid,tMix) #define tSimpleCallable tOr3(tArray,tFunction,tObj) #define tCallable tOr3(tArr(tSimpleCallable),tFunction,tObj) #define BIT_ARRAY (1<<PIKE_T_ARRAY) #define BIT_MAPPING (1<<PIKE_T_MAPPING) #define BIT_MULTISET (1<<PIKE_T_MULTISET) #define BIT_OBJECT (1<<PIKE_T_OBJECT) #define BIT_FUNCTION (1<<PIKE_T_FUNCTION) #define BIT_PROGRAM (1<<PIKE_T_PROGRAM) #define BIT_STRING (1<<PIKE_T_STRING) #define BIT_TYPE (1<<PIKE_T_TYPE) #define BIT_INT (1<<PIKE_T_INT) #define BIT_FLOAT (1<<PIKE_T_FLOAT) #define BIT_ZERO (1<<PIKE_T_ZERO) /* Used to signify that this array might not be finished yet */ /* garbage collect uses this */ #define BIT_UNFINISHED (1 << T_UNFINISHED) /* This is only used in typechecking to signify that this * argument may be omitted. */ #define BIT_VOID (1 << T_VOID) /* This is used in typechecking to signify that the rest of the * arguments has to be of this type. */ #define BIT_MANY (1 << T_MANY) #define BIT_NOTHING 0 #define BIT_MIXED 0x7fff #define BIT_BASIC (BIT_INT|BIT_FLOAT|BIT_STRING|BIT_TYPE) #define BIT_COMPLEX (BIT_ARRAY|BIT_MULTISET|BIT_OBJECT|BIT_PROGRAM|BIT_MAPPING|BIT_FUNCTION) #define BIT_CALLABLE (BIT_FUNCTION|BIT_PROGRAM|BIT_ARRAY|BIT_OBJECT) /* Max type which contains svalues */ #define MAX_COMPLEX PIKE_T_PROGRAM /* Max type with ref count */ #define MAX_REF_TYPE PIKE_T_TYPE /* Max type handled by svalue primitives */ #define MAX_TYPE PIKE_T_FLOAT #define NUMBER_NUMBER 0 #define NUMBER_UNDEFINED 1 #define NUMBER_DESTRUCTED 2 #define FUNCTION_BUILTIN USHRT_MAX #define is_gt(a,b) is_lt(b,a) #define IS_ZERO(X) ((X)->type==PIKE_T_INT?(X)->u.integer==0:(1<<(X)->type)&(BIT_OBJECT|BIT_FUNCTION)?!svalue_is_true(X):0) #define IS_UNDEFINED(X) ((X)->type==PIKE_T_INT&&!(X)->u.integer&&(X)->subtype==1) #define IS_DESTRUCTED(X) \ (((X)->type == PIKE_T_OBJECT || (X)->type==PIKE_T_FUNCTION) && !(X)->u.object->prog) #define check_destructed(S) \ do{ \ struct svalue *_s=(S); \ if(IS_DESTRUCTED(_s)) { \ free_object(_s->u.object); \ _s->type = PIKE_T_INT; \ _s->subtype = NUMBER_DESTRUCTED ; \ _s->u.integer = 0; \ } \ }while(0) /* var MUST be a variable!!! */ #define safe_check_destructed(var) do{ \ if((var->type == PIKE_T_OBJECT || var->type==PIKE_T_FUNCTION) && !var->u.object->prog) \ var=&dest_ob_zero; \ }while(0) #define check_short_destructed(U,T) \ do{ \ union anything *_u=(U); \ if(( (1<<(T)) & (BIT_OBJECT | BIT_FUNCTION) ) && \ _u->object && !_u->object->prog) { \ free_object(_u->object); \ _u->object = 0; \ } \ }while(0) #ifdef PIKE_RUN_UNLOCKED #define add_ref(X) pike_atomic_inc32(&(X)->refs) #define sub_ref(X) pike_atomic_dec_and_test32(&(X)->refs) #if 0 #define IF_LOCAL_MUTEX(X) X #define USE_LOCAL_MUTEX #define pike_lock_data(X) mt_lock(&(X)->mutex) #define pike_unlock_data(X) mt_unlock(&(X)->mutex) #else #define IF_LOCAL_MUTEX(X) #define pike_lock_data(X) pike_lockmem((X)) #define pike_unlock_data(X) pike_unlockmem((X)) #endif #else #define IF_LOCAL_MUTEX(X) #define add_ref(X) (void)((X)->refs++) #define sub_ref(X) (--(X)->refs) #define pike_lock_data(X) (void)(X) #define pike_unlock_data(X) (void)(X) #endif #ifdef PIKE_DEBUG PMOD_EXPORT extern void describe(void *); /* defined in gc.c */ #define check_type(T) if(T > MAX_TYPE && T!=T_LVALUE && T!=T_SHORT_LVALUE && T!=T_VOID && T!=T_DELETED && T!=T_ARRAY_LVALUE) fatal("Type error: %d\n",T) #define check_svalue(S) debug_check_svalue(dmalloc_check_svalue(S,DMALLOC_LOCATION())) #define check_refs(S) do {\ if((S)->type <= MAX_REF_TYPE && (!(S)->u.refs || (S)->u.refs[0] < 0)) { \ describe((S)->u.refs); \ fatal("Svalue to object without references.\n"); \ } }while(0) #define check_refs2(S,T) do { \ if((T) <= MAX_REF_TYPE && (S)->refs && (S)->refs[0] <= 0) {\ describe((S)->refs); \ fatal("(short) Svalue to object without references.\n"); \ } }while(0) #ifdef DEBUG_MALLOC static inline struct svalue *dmalloc_check_svalue(struct svalue *s, char *l) { debug_malloc_update_location(s,l); #if 0 if(s->type <= MAX_REF_TYPE) debug_malloc_update_location(s->u.refs,l); #endif return s; } static inline union anything *dmalloc_check_union(union anything *u,int type, char * l) { debug_malloc_update_location(u,l); #if 0 if(type <= MAX_REF_TYPE) debug_malloc_update_location(u->refs,l); #endif return u; } #undef add_ref #undef sub_ref #ifdef PIKE_RUN_UNLOCKED #define add_ref(X) pike_atomic_inc32((INT32 *)debug_malloc_pass( &((X)->refs))) #define sub_ref(X) pike_atomic_dec_and_test32((INT32 *)debug_malloc_pass( &((X)->refs))) #else #define add_ref(X) (((INT32 *)debug_malloc_pass( &((X)->refs)))[0]++) #define sub_ref(X) (--((INT32 *)debug_malloc_pass( &((X)->refs)))[0]) #endif #else #define dmalloc_check_svalue(S,L) (S) #define dmalloc_check_union(U,T,L) (U) #endif #else #define check_svalue(S) #define check_type(T) #define check_refs(S) #define check_refs2(S,T) #define dmalloc_check_svalue(S,L) (S) #define dmalloc_check_union(U,T,L) (U) #endif /* This define * should check that the svalue address (X) is on the local stack, * the processor stack or in a locked memory object * * Or, it could just try to make sure it's not in an unlocked memory * object... */ #define assert_svalue_locked(X) #define swap_svalues_unlocked(X,Y) do { \ struct svalue *_a=(X),*_b=(Y),_tmp; \ assert_svalue_locked(_a); assert_svalue_locked(_b); \ _tmp=*_a; *_a=*_b; *_b=_tmp; \ }while(0) #define free_svalue_unlocked(X) do { \ struct svalue *_s=(X); \ assert_svalue_locked(_s); \ check_type(_s->type); check_refs(_s); \ if(_s->type<=MAX_REF_TYPE) { \ debug_malloc_touch(_s->u.refs); \ if(sub_ref(_s->u.dummy) <=0) { really_free_svalue(_s); } \ DO_IF_DMALLOC(_s->u.refs=(void *)-1;) \ } \ }while(0) #define free_short_svalue_unlocked(X,T) do { \ union anything *_s=(X); TYPE_T _t=(T); \ check_type(_t); check_refs2(_s,_t); \ assert_svalue_locked(_s); \ if(_t<=MAX_REF_TYPE && _s->refs) { \ if(sub_ref(_s->dummy) <= 0) really_free_short_svalue(_s,_t); \ DO_IF_DMALLOC(_s->refs=(void *)-1;) \ } \ }while(0) #define add_ref_svalue_unlocked(X) do { \ struct svalue *_tmp=(X); \ check_type(_tmp->type); check_refs(_tmp); \ if(_tmp->type <= MAX_REF_TYPE) add_ref(_tmp->u.dummy); \ }while(0) #define assign_svalue_no_free_unlocked(X,Y) do { \ struct svalue _tmp, *_to=(X), *_from=(Y); \ check_type(_from->type); check_refs(_from); \ *_to=_tmp=*_from; \ if(_tmp.type <= MAX_REF_TYPE) add_ref(_tmp.u.dummy); \ }while(0) #define assign_svalue_unlocked(X,Y) do { \ struct svalue *_to2=(X), *_from2=(Y); \ if (_to2 != _from2) { \ free_svalue(_to2); \ assign_svalue_no_free(_to2, _from2); \ } \ }while(0) extern struct svalue dest_ob_zero; #ifdef DEBUG_MALLOC #define free_svalues(X,Y,Z) debug_free_svalues((X),(Y),(Z), DMALLOC_LOCATION()) #else #define free_svalues(X,Y,Z) debug_free_svalues((X),(Y),(Z)) #endif /* Prototypes begin here */ PMOD_EXPORT void really_free_short_svalue(union anything *s, TYPE_T type); PMOD_EXPORT void really_free_svalue(struct svalue *s); PMOD_EXPORT void do_free_svalue(struct svalue *s); PMOD_EXPORT void debug_free_svalues(struct svalue *s, size_t num, INT32 type_hint DMALLOC_LINE_ARGS); PMOD_EXPORT void assign_svalues_no_free(struct svalue *to, struct svalue *from, size_t num, INT32 type_hint); PMOD_EXPORT void assign_svalues(struct svalue *to, struct svalue *from, size_t num, TYPE_FIELD types); PMOD_EXPORT void assign_to_short_svalue(union anything *u, TYPE_T type, struct svalue *s); PMOD_EXPORT void assign_to_short_svalue_no_free(union anything *u, TYPE_T type, struct svalue *s); PMOD_EXPORT void assign_from_short_svalue_no_free(struct svalue *s, union anything *u, TYPE_T type); PMOD_EXPORT void assign_short_svalue_no_free(union anything *to, union anything *from, TYPE_T type); PMOD_EXPORT void assign_short_svalue(union anything *to, union anything *from, TYPE_T type); PMOD_EXPORT unsigned INT32 hash_svalue(struct svalue *s); PMOD_EXPORT int svalue_is_true(struct svalue *s); PMOD_EXPORT int is_identical(struct svalue *a, struct svalue *b); PMOD_EXPORT int is_eq(struct svalue *a, struct svalue *b); PMOD_EXPORT int low_is_equal(struct svalue *a, struct svalue *b, struct processing *p); PMOD_EXPORT int low_short_is_equal(const union anything *a, const union anything *b, TYPE_T type, struct processing *p); PMOD_EXPORT int is_equal(struct svalue *a,struct svalue *b); PMOD_EXPORT int is_lt(struct svalue *a,struct svalue *b); PMOD_EXPORT void describe_svalue(struct svalue *s,int indent,struct processing *p); PMOD_EXPORT void print_svalue (FILE *out, struct svalue *s); PMOD_EXPORT void clear_svalues(struct svalue *s, ptrdiff_t num); PMOD_EXPORT void clear_svalues_undefined(struct svalue *s, ptrdiff_t num); PMOD_EXPORT void copy_svalues_recursively_no_free(struct svalue *to, struct svalue *from, size_t num, struct processing *p); void check_short_svalue(union anything *u, TYPE_T type); void debug_check_svalue(struct svalue *s); PMOD_EXPORT void real_gc_xmark_svalues(struct svalue *s, ptrdiff_t num); PMOD_EXPORT void real_gc_check_svalues(struct svalue *s, size_t num); void gc_check_weak_svalues(struct svalue *s, size_t num); PMOD_EXPORT void real_gc_check_short_svalue(union anything *u, TYPE_T type); void gc_check_weak_short_svalue(union anything *u, TYPE_T type); PMOD_EXPORT TYPE_FIELD real_gc_mark_svalues(struct svalue *s, size_t num); TYPE_FIELD gc_mark_weak_svalues(struct svalue *s, size_t num); int real_gc_mark_short_svalue(union anything *u, TYPE_T type); int gc_mark_weak_short_svalue(union anything *u, TYPE_T type); PMOD_EXPORT TYPE_FIELD real_gc_cycle_check_svalues(struct svalue *s, size_t num); TYPE_FIELD gc_cycle_check_weak_svalues(struct svalue *s, size_t num); PMOD_EXPORT int real_gc_cycle_check_short_svalue(union anything *u, TYPE_T type); int gc_cycle_check_weak_short_svalue(union anything *u, TYPE_T type); void real_gc_free_svalue(struct svalue *s); void real_gc_free_short_svalue(union anything *u, TYPE_T type); PMOD_EXPORT INT32 pike_sizeof(struct svalue *s); /* Prototypes end here */ #define gc_xmark_svalues(S,N) real_gc_xmark_svalues(dmalloc_check_svalue(S,DMALLOC_LOCATION()),N) #define gc_check_svalues(S,N) real_gc_check_svalues(dmalloc_check_svalue(S,DMALLOC_LOCATION()),N) #define gc_check_short_svalue(U,T) real_gc_check_short_svalue(dmalloc_check_union((U),(T),DMALLOC_LOCATION()),T) #define gc_mark_svalues(S,N) real_gc_mark_svalues(dmalloc_check_svalue((S),DMALLOC_LOCATION()),N) #define gc_mark_short_svalue(U,T) real_gc_mark_short_svalue(dmalloc_check_union((U),(T),DMALLOC_LOCATION()),T) #define gc_cycle_check_svalues(S,N) real_gc_cycle_check_svalues(dmalloc_check_svalue(S,DMALLOC_LOCATION()),N) #define gc_cycle_check_short_svalue(U,T) real_gc_cycle_check_short_svalue(dmalloc_check_union((U),(T),DMALLOC_LOCATION()),(T)) #define gc_free_svalue(S) real_gc_free_svalue(dmalloc_check_svalue(S,DMALLOC_LOCATION())) #define gc_free_short_svalue(U,T) real_gc_free_short_svalue(dmalloc_check_union((U),(T),DMALLOC_LOCATION()),(T)) #ifndef NO_PIKE_SHORTHAND #define T_ARRAY PIKE_T_ARRAY #define T_MAPPING PIKE_T_MAPPING #define T_MULTISET PIKE_T_MULTISET #define T_OBJECT PIKE_T_OBJECT #define T_FUNCTION PIKE_T_FUNCTION #define T_PROGRAM PIKE_T_PROGRAM #define T_STRING PIKE_T_STRING #define T_TYPE PIKE_T_TYPE #define T_FLOAT PIKE_T_FLOAT #define T_INT PIKE_T_INT #define T_ZERO PIKE_T_ZERO #define T_TUPLE PIKE_T_TUPLE #define T_SCOPE PIKE_T_SCOPE #define T_MIXED PIKE_T_MIXED #endif /* !NO_PIKE_SHORTHAND */ #if 0 /* PIKE_RUN_UNLOCKED */ #include "pike_error.h" /*#define swap_svalues swap_svalues*/ /*#define free_svalue free_svalue_unlocked*/ /*#define free_short_svalue free_short_svalue_unlocked */ /*#define add_ref_svalue add_ref_svalue_unlocked*/ /* * These don't work right now - Hubbe */ #define assign_svalue_no_free assign_svalue_no_free_unlocked #define assign_svalue assign_svalue_unlocked /* FIXME: * These routines assumes that pointers are 32 bit * and svalues 64 bit!!!!! - Hubbe */ #ifndef swap_svalues #define swap_svalues swap_svalues_unlocked #endif #ifndef free_svalue static inline void free_svalue(struct svalue *s) { INT64 tmp; struct svalue zero; zero.type=PIKE_T_INT; tmp=pike_atomic_swap64((INT64 *)s, *(INT64 *)&zero); free_svalue_unlocked((struct svalue *)&tmp); } #endif #ifndef free_short_svalue static inline void free_short_svalue(union anything *s, INT16 t) { if(t <= MAX_REF_TYPE) { INT32 tmp; tmp=pike_atomic_swap32((INT32 *)s, 0); free_short_svalue_unlocked((union anything *)&tmp, t); } } #endif #ifndef add_ref_svalue static inline void add_ref_svalue(struct svalue *s) { INT64 sv; sv=pike_atomic_get64((INT64 *)s); add_ref_svalue_unlocked((struct svalue *)&sv); } #endif #ifndef assign_svalue_no_free void assign_svalue_no_free(struct svalue *to, struct svalue *from) { INT64 tmp, sv; sv=pike_atomic_get64((INT64 *)from); #ifdef PIKE_DEBUG if(sv != *(INT64*)from) { fprintf(stderr,"pike_atomic_get64() is broken %llx != %llx (%08x%08x)!\n", sv, *(INT64*)from, ((INT32*)from)[1], ((INT32*)from)[0]); abort(); } #endif add_ref_svalue_unlocked((struct svalue *)&sv); pike_atomic_set64((INT64 *)to, sv); #ifdef PIKE_DEBUG if(*(INT64*)to != *(INT64*)from) { fprintf(stderr,"pike_atomic_set64() is broken!\n"); abort(); } #endif } #endif #ifndef assign_svalue static inline void assign_svalue(struct svalue *to, struct svalue *from) { INT64 tmp, sv; if(to != from) { sv=pike_atomic_get64((INT64 *)from); add_ref_svalue_unlocked((struct svalue *)&sv); tmp=pike_atomic_swap64((INT64 *)to, sv); free_svalue_unlocked((struct svalue *)&tmp); } } #endif #else /* FOO_PIKE_RUN_UNLOCKED */ #define swap_svalues swap_svalues #define free_svalue free_svalue_unlocked #define free_short_svalue free_short_svalue_unlocked #define add_ref_svalue add_ref_svalue_unlocked #define assign_svalue_no_free assign_svalue_no_free_unlocked #define assign_svalue assign_svalue_unlocked #endif /* FOO_PIKE_RUN_UNLOCKED */ #ifdef PIKE_RUN_UNLOCKED #include "pike_threadlib.h" #endif /* * Note to self: * It might be better to use a static array of mutexes instead * and just lock mutex ptr % array_size instead. * That way I wouldn't need a mutex in each memory object, * but it would cost a couple of cycles in every lock/unlock * operation instead. */ #define PIKE_MEMORY_OBJECT_MEMBERS \ INT32 refs \ DO_IF_SECURITY(; struct object *prot) \ IF_LOCAL_MUTEX(; PIKE_MUTEX_T mutex) #define INIT_PIKE_MEMOBJ(X) do { \ struct ref_dummy *v_=(struct ref_dummy *)(X); \ v_->refs=1; \ DO_IF_SECURITY( INITIALIZE_PROT(v_) ); \ IF_LOCAL_MUTEX(mt_init_recursive(&(v_->mutex))); \ }while(0) #define EXIT_PIKE_MEMOBJ(X) do { \ struct ref_dummy *v_=(struct ref_dummy *)(X); \ DO_IF_SECURITY( FREE_PROT(v_) ); \ IF_LOCAL_MUTEX(mt_destroy(&(v_->mutex))); \ }while(0) struct ref_dummy { PIKE_MEMORY_OBJECT_MEMBERS; }; #endif /* !SVALUE_H */

pike.git/ src/ svalue.h > 45637c689342fbdb8ee30cb1f6dbe5e587f2f303 [Annotate]