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Diffstat (limited to 'src/h/rexterns.h')
| -rw-r--r-- | src/h/rexterns.h | 223 |
1 files changed, 223 insertions, 0 deletions
diff --git a/src/h/rexterns.h b/src/h/rexterns.h new file mode 100644 index 0000000..804424c --- /dev/null +++ b/src/h/rexterns.h @@ -0,0 +1,223 @@ +/* + * External declarations for the run-time system. + */ + +/* + * External declarations common to the compiler and interpreter. + */ + +extern struct b_proc *op_tbl; /* operators available for string invocation */ +extern int op_tbl_sz; /* number of operators in op_tbl */ +extern int debug_info; /* flag: debugging information is available */ +extern int err_conv; /* flag: error conversion is supported */ +extern int dodump; /* termination dump */ +extern int line_info; /* flag: line information is available */ +extern char *file_name; /* source file for current execution point */ +extern int line_num; /* line number for current execution point */ + +extern unsigned char allchars[];/* array for making one-character strings */ +extern char *blkname[]; /* print names for block types. */ +extern char *currend; /* current end of memory region */ +extern dptr *quallist; /* start of qualifier list */ +extern int bsizes[]; /* sizes of blocks */ +extern int firstd[]; /* offset (words) of first descrip. */ +extern uword segsize[]; /* size of hash bucket segment */ +extern int k_level; /* value of &level */ + +extern struct b_coexpr *stklist;/* base of co-expression stack list */ +extern struct b_cset blankcs; /* ' ' */ +extern struct b_cset lparcs; /* '(' */ +extern struct b_cset rparcs; /* ')' */ +extern struct b_cset fullcs; /* cset containing all characters */ +extern struct descrip blank; /* blank */ +extern struct descrip emptystr; /* empty string */ + +extern struct descrip kywd_dmp; /* descriptor for &dump */ +extern struct descrip nullptr; /* descriptor with null block pointer */ +extern struct descrip lcase; /* lowercase string */ +extern struct descrip letr; /* letter "r" */ +extern struct descrip maps2; /* second argument to map() */ +extern struct descrip maps3; /* third argument to map() */ +extern struct descrip nulldesc; /* null value */ +extern struct descrip onedesc; /* one */ +extern struct descrip ucase; /* uppercase string */ +extern struct descrip zerodesc; /* zero */ + +extern word mstksize; /* size of main stack in words */ +extern word stksize; /* size of co-expression stacks in words */ +extern word qualsize; /* size of string qualifier list */ +extern word memcushion; /* memory region cushion factor */ +extern word memgrowth; /* memory region growth factor */ +extern uword stattotal; /* cumulative total of all static allocations */ + /* N.B. not currently set */ + +extern struct tend_desc *tend; /* chain of tended descriptors */ + +/* + * Externals that are conditional on features. + */ +#ifdef FncTrace + extern struct descrip kywd_ftrc; /* descriptor for &ftrace */ +#endif /* FncTrace */ + +#ifdef Polling + extern int pollctr; +#endif /* Polling */ + +#ifdef EventMon + extern char typech[]; + extern word oldsum; + extern struct descrip csetdesc; /* cset descriptor */ + extern struct descrip eventdesc; /* event descriptor */ + extern struct b_iproc mt_llist; + extern struct descrip rzerodesc; /* real descriptor */ + extern struct b_real realzero; /* real zero block */ +#endif /* EventMon */ + +/* + * Externals conditional on multithreading. + */ + extern struct region rootstring; + extern struct region rootblock; +#ifndef MultiThread + extern dptr glbl_argp; /* argument pointer */ + extern struct region *curstring; + extern struct region *curblock; + extern struct descrip k_current; /* ¤t */ + extern char *k_errortext; /* value of &errortext */ + extern int have_errval; /* &errorvalue has a legal value */ + extern int k_errornumber; /* value of &errornumber */ + extern int t_errornumber; /* tentative k_errornumber value */ + extern int t_have_val; /* tentative have_errval flag */ + extern struct b_file k_errout; /* value of &errout */ + extern struct b_file k_input; /* value of &input */ + extern struct b_file k_output; /* value of &output */ + extern struct descrip k_errorvalue; /* value of &errorvalue */ + extern struct descrip kywd_err; /* &error */ + extern struct descrip kywd_pos; /* descriptor for &pos */ + extern struct descrip kywd_prog; /* descriptor for &prog */ + extern struct descrip kywd_ran; /* descriptor for &random */ + extern struct descrip k_subject; /* &subject */ + extern struct descrip kywd_trc; /* descriptor for &trace */ + extern struct descrip k_eventcode; /* &eventcode */ + extern struct descrip k_eventsource; /* &eventsource */ + extern struct descrip k_eventvalue; /* &eventvalue */ + extern struct descrip k_main; /* value of &main */ + extern struct descrip t_errorvalue; /* tentative k_errorvalue value */ + extern uword blktotal; /* cumul total of all block allocs */ + extern uword strtotal; /* cumul total of all string allocs */ + extern word coll_tot; /* total number of collections */ + extern word coll_stat; /* collections from static reqests */ + extern word coll_str; /* collections from string requests */ + extern word coll_blk; /* collections from block requests */ + extern dptr globals; /* start of global variables */ + extern dptr eglobals; /* end of global variables */ + extern dptr gnames; /* start of global variable names */ + extern dptr egnames; /* end of global variable names */ + extern dptr estatics; /* end of static variables */ + extern int n_globals; /* number of global variables */ + extern int n_statics; /* number of static variables */ + extern struct b_coexpr *mainhead; /* &main */ +#endif /* MultiThread */ + +/* + * Externals that differ between compiler and interpreter. + */ +#if !COMPILER + /* + * External declarations for the interpreter. + */ + + extern int ixinited; /* iconx has initialized */ + extern inst ipc; /* interpreter program counter */ + extern int ilevel; /* interpreter level */ + extern int ntended; /* number of active tended descriptors*/ + extern struct b_cset k_ascii; /* value of &ascii */ + extern struct b_cset k_cset; /* value of &cset */ + extern struct b_cset k_digits; /* value of &lcase */ + extern struct b_cset k_lcase; /* value of &lcase */ + extern struct b_cset k_letters; /* value of &letters */ + extern struct b_cset k_ucase; /* value of &ucase */ + extern struct descrip tended[]; /* tended descriptors */ + extern struct ef_marker *efp; /* expression frame pointer */ + extern struct gf_marker *gfp; /* generator frame pointer */ + extern struct pf_marker *pfp; /* procedure frame pointer */ + extern word *sp; /* interpreter stack pointer */ + extern word *stack; /* interpreter stack base */ + extern word *stackend; /* end of evaluation stack */ + + extern struct pstrnm pntab[]; + extern int pnsize; + + #ifdef MultiThread + extern struct progstate *curpstate; + extern struct progstate rootpstate; + extern int noMTevents; /* no MT events during GC */ + #else /* MultiThread */ + extern char *code; /* start of icode */ + extern char *ecode; /* end of icode */ + extern dptr statics; /* start of static variables */ + extern char *strcons; /* start of the string constants */ + extern dptr fnames; /* field names */ + extern dptr efnames; /* end of field names */ + extern word *records; + extern int *ftabp; /* field table pointer */ + #ifdef FieldTableCompression + extern word ftabwidth, foffwidth; + extern unsigned char *ftabcp; + extern short *ftabsp; + #endif /* FieldTableCompression */ + extern dptr xargp; + extern word xnargs; + + extern word lastop; + #endif /* MultiThread */ + +#else /* COMPILER */ + + extern struct descrip statics[]; /* array of static variables */ + extern struct b_proc *builtins[]; /* pointers to builtin functions */ + extern int noerrbuf; /* error buffering */ + extern struct p_frame *pfp; /* procedure frame pointer */ + extern struct descrip trashcan; /* dummy descriptor, never read */ + extern int largeints; /* flag: large integers supported */ + +#endif /* COMPILER */ + +/* + * graphics + */ +#ifdef Graphics + + extern stringint attribs[], drawops[]; + extern wbp wbndngs; + extern wcp wcntxts; + extern wsp wstates; + extern int GraphicsLeft, GraphicsUp, GraphicsRight, GraphicsDown; + extern int GraphicsHome, GraphicsPrior, GraphicsNext, GraphicsEnd; + extern int win_highwater, canvas_serial, context_serial; + extern clock_t starttime; /* start time in milliseconds */ + + #ifndef MultiThread + extern struct descrip kywd_xwin[]; + extern struct descrip lastEventWin; + extern int lastEvFWidth, lastEvLeading, lastEvAscent; + extern struct descrip amperCol; + extern struct descrip amperRow; + extern struct descrip amperX; + extern struct descrip amperY; + extern struct descrip amperInterval; + extern uword xmod_control, xmod_shift, xmod_meta; + #endif /* MultiThread */ + + #ifdef XWindows + extern struct _wdisplay * wdsplys; + extern stringint cursorsyms[]; + #endif /* XWindows */ + + #ifdef WinGraphics + extern HINSTANCE mswinInstance; + extern int ncmdShow; + #endif /* WinGraphics */ + +#endif /* Graphics */ |