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Diffstat (limited to 'Master/tlpkg/tlperl/lib/CORE/scope.h')
| -rwxr-xr-x | Master/tlpkg/tlperl/lib/CORE/scope.h | 240 |
1 files changed, 240 insertions, 0 deletions
diff --git a/Master/tlpkg/tlperl/lib/CORE/scope.h b/Master/tlpkg/tlperl/lib/CORE/scope.h new file mode 100755 index 00000000000..b6976764e7d --- /dev/null +++ b/Master/tlpkg/tlperl/lib/CORE/scope.h @@ -0,0 +1,240 @@ +/* scope.h + * + * Copyright (C) 1993, 1994, 1996, 1997, 1998, 1999, 2000, 2001, + * 2002, 2004, 2005, 2006, 2007, 2008 by Larry Wall and others + * + * You may distribute under the terms of either the GNU General Public + * License or the Artistic License, as specified in the README file. + * + */ + +#define SAVEt_ITEM 0 +#define SAVEt_SV 1 +#define SAVEt_AV 2 +#define SAVEt_HV 3 +#define SAVEt_INT 4 +#define SAVEt_LONG 5 +#define SAVEt_I32 6 +#define SAVEt_IV 7 +#define SAVEt_SPTR 8 +#define SAVEt_APTR 9 +#define SAVEt_HPTR 10 +#define SAVEt_PPTR 11 +#define SAVEt_NSTAB 12 +#define SAVEt_SVREF 13 +#define SAVEt_GP 14 +#define SAVEt_FREESV 15 +#define SAVEt_FREEOP 16 +#define SAVEt_FREEPV 17 +#define SAVEt_CLEARSV 18 +#define SAVEt_DELETE 19 +#define SAVEt_DESTRUCTOR 20 +#define SAVEt_REGCONTEXT 21 +#define SAVEt_STACK_POS 22 +#define SAVEt_I16 23 +#define SAVEt_AELEM 24 +#define SAVEt_HELEM 25 +#define SAVEt_OP 26 +#define SAVEt_HINTS 27 +#define SAVEt_ALLOC 28 +#define SAVEt_GENERIC_SVREF 29 +#define SAVEt_DESTRUCTOR_X 30 +#define SAVEt_VPTR 31 +#define SAVEt_I8 32 +#define SAVEt_COMPPAD 33 +#define SAVEt_GENERIC_PVREF 34 +#define SAVEt_PADSV 35 +#define SAVEt_MORTALIZESV 36 +#define SAVEt_SHARED_PVREF 37 +#define SAVEt_BOOL 38 +#define SAVEt_SET_SVFLAGS 39 +#define SAVEt_SAVESWITCHSTACK 40 +#define SAVEt_COP_ARYBASE 41 +#define SAVEt_RE_STATE 42 +#define SAVEt_COMPILE_WARNINGS 43 +#define SAVEt_STACK_CXPOS 44 +#define SAVEt_PARSER 45 +#define SAVEt_PADSV_AND_MORTALIZE 46 + +#ifndef SCOPE_SAVES_SIGNAL_MASK +#define SCOPE_SAVES_SIGNAL_MASK 0 +#endif + +#define SSCHECK(need) if (PL_savestack_ix + (I32)(need) > PL_savestack_max) savestack_grow() +#define SSGROW(need) if (PL_savestack_ix + (I32)(need) > PL_savestack_max) savestack_grow_cnt(need) +#define SSPUSHINT(i) (PL_savestack[PL_savestack_ix++].any_i32 = (I32)(i)) +#define SSPUSHLONG(i) (PL_savestack[PL_savestack_ix++].any_long = (long)(i)) +#define SSPUSHBOOL(p) (PL_savestack[PL_savestack_ix++].any_bool = (p)) +#define SSPUSHIV(i) (PL_savestack[PL_savestack_ix++].any_iv = (IV)(i)) +#define SSPUSHPTR(p) (PL_savestack[PL_savestack_ix++].any_ptr = (void*)(p)) +#define SSPUSHDPTR(p) (PL_savestack[PL_savestack_ix++].any_dptr = (p)) +#define SSPUSHDXPTR(p) (PL_savestack[PL_savestack_ix++].any_dxptr = (p)) +#define SSPOPINT (PL_savestack[--PL_savestack_ix].any_i32) +#define SSPOPLONG (PL_savestack[--PL_savestack_ix].any_long) +#define SSPOPBOOL (PL_savestack[--PL_savestack_ix].any_bool) +#define SSPOPIV (PL_savestack[--PL_savestack_ix].any_iv) +#define SSPOPPTR (PL_savestack[--PL_savestack_ix].any_ptr) +#define SSPOPDPTR (PL_savestack[--PL_savestack_ix].any_dptr) +#define SSPOPDXPTR (PL_savestack[--PL_savestack_ix].any_dxptr) + +/* +=head1 Callback Functions + +=for apidoc Ams||SAVETMPS +Opening bracket for temporaries on a callback. See C<FREETMPS> and +L<perlcall>. + +=for apidoc Ams||FREETMPS +Closing bracket for temporaries on a callback. See C<SAVETMPS> and +L<perlcall>. + +=for apidoc Ams||ENTER +Opening bracket on a callback. See C<LEAVE> and L<perlcall>. + +=for apidoc Ams||LEAVE +Closing bracket on a callback. See C<ENTER> and L<perlcall>. + +=cut +*/ + +#define SAVETMPS save_int((int*)&PL_tmps_floor), PL_tmps_floor = PL_tmps_ix +#define FREETMPS if (PL_tmps_ix > PL_tmps_floor) free_tmps() + +#ifdef DEBUGGING +#define ENTER \ + STMT_START { \ + push_scope(); \ + DEBUG_SCOPE("ENTER") \ + } STMT_END +#define LEAVE \ + STMT_START { \ + DEBUG_SCOPE("LEAVE") \ + pop_scope(); \ + } STMT_END +#else +#define ENTER push_scope() +#define LEAVE pop_scope() +#endif +#define LEAVE_SCOPE(old) if (PL_savestack_ix > old) leave_scope(old) + +#define SAVEI8(i) save_I8((I8*)&(i)) +#define SAVEI16(i) save_I16((I16*)&(i)) +#define SAVEI32(i) save_I32((I32*)&(i)) +#define SAVEINT(i) save_int((int*)&(i)) +#define SAVEIV(i) save_iv((IV*)&(i)) +#define SAVELONG(l) save_long((long*)&(l)) +#define SAVEBOOL(b) save_bool((bool*)&(b)) +#define SAVESPTR(s) save_sptr((SV**)&(s)) +#define SAVEPPTR(s) save_pptr((char**)&(s)) +#define SAVEVPTR(s) save_vptr((void*)&(s)) +#define SAVEPADSV(s) save_padsv(s) +#define SAVEPADSVANDMORTALIZE(s) save_padsv_and_mortalize(s) +#define SAVEFREESV(s) save_freesv(MUTABLE_SV(s)) +#define SAVEMORTALIZESV(s) save_mortalizesv(MUTABLE_SV(s)) +#define SAVEFREEOP(o) save_freeop((OP*)(o)) +#define SAVEFREEPV(p) save_freepv((char*)(p)) +#define SAVECLEARSV(sv) save_clearsv((SV**)&(sv)) +#define SAVEGENERICSV(s) save_generic_svref((SV**)&(s)) +#define SAVEGENERICPV(s) save_generic_pvref((char**)&(s)) +#define SAVESHAREDPV(s) save_shared_pvref((char**)&(s)) +#define SAVESETSVFLAGS(sv,mask,val) save_set_svflags(sv,mask,val) +#define SAVEDELETE(h,k,l) \ + save_delete(MUTABLE_HV(h), (char*)(k), (I32)(l)) +#define SAVEDESTRUCTOR(f,p) \ + save_destructor((DESTRUCTORFUNC_NOCONTEXT_t)(f), (void*)(p)) + +#define SAVEDESTRUCTOR_X(f,p) \ + save_destructor_x((DESTRUCTORFUNC_t)(f), (void*)(p)) + +#define SAVESTACK_POS() \ + STMT_START { \ + SSCHECK(2); \ + SSPUSHINT(PL_stack_sp - PL_stack_base); \ + SSPUSHINT(SAVEt_STACK_POS); \ + } STMT_END + +#define SAVEOP() save_op() + +#define SAVEHINTS() save_hints() + +#define SAVECOMPPAD() save_pushptr(MUTABLE_SV(PL_comppad), SAVEt_COMPPAD) + +#define SAVESWITCHSTACK(f,t) \ + STMT_START { \ + save_pushptrptr(MUTABLE_SV(f), MUTABLE_SV(t), SAVEt_SAVESWITCHSTACK); \ + SWITCHSTACK((f),(t)); \ + PL_curstackinfo->si_stack = (t); \ + } STMT_END + +#define SAVECOPARYBASE(c) save_pushi32ptr(CopARYBASE_get(c), c, SAVEt_COP_ARYBASE); + +/* Need to do the cop warnings like this, rather than a "SAVEFREESHAREDPV", + because realloc() means that the value can actually change. Possibly + could have done savefreesharedpvREF, but this way actually seems cleaner, + as it simplifies the code that does the saves, and reduces the load on the + save stack. */ +#define SAVECOMPILEWARNINGS() save_pushptr(PL_compiling.cop_warnings, SAVEt_COMPILE_WARNINGS) + +#define SAVESTACK_CXPOS() \ + STMT_START { \ + SSCHECK(3); \ + SSPUSHINT(cxstack[cxstack_ix].blk_oldsp); \ + SSPUSHINT(cxstack_ix); \ + SSPUSHINT(SAVEt_STACK_CXPOS); \ + } STMT_END + +#define SAVEPARSER(p) save_pushptr((p), SAVEt_PARSER) + +#ifdef USE_ITHREADS +# define SAVECOPSTASH(c) SAVEPPTR(CopSTASHPV(c)) +# define SAVECOPSTASH_FREE(c) SAVESHAREDPV(CopSTASHPV(c)) +# define SAVECOPFILE(c) SAVEPPTR(CopFILE(c)) +# define SAVECOPFILE_FREE(c) SAVESHAREDPV(CopFILE(c)) +# define SAVECOPLABEL(c) SAVEPPTR(CopLABEL(c)) +# define SAVECOPLABEL_FREE(c) SAVESHAREDPV(CopLABEL(c)) +#else +# define SAVECOPSTASH(c) SAVESPTR(CopSTASH(c)) +# define SAVECOPSTASH_FREE(c) SAVECOPSTASH(c) /* XXX not refcounted */ +# define SAVECOPFILE(c) SAVESPTR(CopFILEGV(c)) +# define SAVECOPFILE_FREE(c) SAVEGENERICSV(CopFILEGV(c)) +# define SAVECOPLABEL(c) SAVEPPTR(CopLABEL(c)) +# define SAVECOPLABEL_FREE(c) SAVEPPTR(CopLABEL(c)) +#endif + +#define SAVECOPLINE(c) SAVEI32(CopLINE(c)) + +/* SSNEW() temporarily allocates a specified number of bytes of data on the + * savestack. It returns an integer index into the savestack, because a + * pointer would get broken if the savestack is moved on reallocation. + * SSNEWa() works like SSNEW(), but also aligns the data to the specified + * number of bytes. MEM_ALIGNBYTES is perhaps the most useful. The + * alignment will be preserved therough savestack reallocation *only* if + * realloc returns data aligned to a size divisible by "align"! + * + * SSPTR() converts the index returned by SSNEW/SSNEWa() into a pointer. + */ + +#define SSNEW(size) Perl_save_alloc(aTHX_ (size), 0) +#define SSNEWt(n,t) SSNEW((n)*sizeof(t)) +#define SSNEWa(size,align) Perl_save_alloc(aTHX_ (size), \ + (I32)(align - ((size_t)((caddr_t)&PL_savestack[PL_savestack_ix]) % align)) % align) +#define SSNEWat(n,t,align) SSNEWa((n)*sizeof(t), align) + +#define SSPTR(off,type) ((type) ((char*)PL_savestack + off)) +#define SSPTRt(off,type) ((type*) ((char*)PL_savestack + off)) + +#define save_freesv(op) save_pushptr((void *)(op), SAVEt_FREESV) +#define save_mortalizesv(op) save_pushptr((void *)(op), SAVEt_MORTALIZESV) +#define save_freeop(op) save_pushptr((void *)(op), SAVEt_FREEOP) +#define save_freepv(pv) save_pushptr((void *)(pv), SAVEt_FREEPV) +#define save_op() save_pushptr((void *)(PL_op), SAVEt_OP) + +/* + * Local variables: + * c-indentation-style: bsd + * c-basic-offset: 4 + * indent-tabs-mode: t + * End: + * + * ex: set ts=8 sts=4 sw=4 noet: + */ |