晋太元中，武陵人捕鱼为业。缘溪行，忘路之远近。忽逢桃花林，夹岸数百步，中无杂树，芳草鲜美，落英缤纷。渔人甚异之，复前行，欲穷其林。 　　林尽水源，便得一山，山有小口，仿佛若有光。便舍船，从口入。初极狭，才通人。复行数十步，豁然开朗。土地平旷，屋舍俨然，有良田、美池、桑竹之属。阡陌交通，鸡犬相闻。其中往来种作，男女衣着，悉如外人。黄发垂髫，并怡然自乐。 　　见渔人，乃大惊，问所从来。具答之。便要还家，设酒杀鸡作食。村中闻有此人，咸来问讯。自云先世避秦时乱，率妻子邑人来此绝境，不复出焉，遂与外人间隔。问今是何世，乃不知有汉，无论魏晋。此人一一为具言所闻，皆叹惋。余人各复延至其家，皆出酒食。停数日，辞去。此中人语云：“不足为外人道也。”(间隔 一作：隔绝) 　　既出，得其船，便扶向路，处处志之。及郡下，诣太守，说如此。太守即遣人随其往，寻向所志，遂迷，不复得路。 　　南阳刘子骥，高尚士也，闻之，欣然规往。未果，寻病终。后遂无问津者。 .
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Current File : //usr/share/tcl8.6/tclDTrace.d
/*
 * tclDTrace.d --
 *
 *	Tcl DTrace provider.
 *
 * Copyright (c) 2007-2008 Daniel A. Steffen <das@users.sourceforge.net>
 *
 * See the file "license.terms" for information on usage and redistribution of
 * this file, and for a DISCLAIMER OF ALL WARRANTIES.
 */

typedef struct Tcl_Obj Tcl_Obj;
typedef const char* TclDTraceStr;

/*
 * Tcl DTrace probes
 */

provider tcl {
    /***************************** proc probes *****************************/
    /*
     *	tcl*:::proc-entry probe
     *	    triggered immediately before proc bytecode execution
     *		arg0: proc name				(string)
     *		arg1: number of arguments		(int)
     *		arg2: array of proc argument objects	(Tcl_Obj**)
     */
    probe proc__entry(TclDTraceStr name, int objc, struct Tcl_Obj **objv);
    /*
     *	tcl*:::proc-return probe
     *	    triggered immediately after proc bytecode execution
     *		arg0: proc name				(string)
     *		arg1: return code			(int)
     */
    probe proc__return(TclDTraceStr name, int code);
    /*
     *	tcl*:::proc-result probe
     *	    triggered after proc-return probe and result processing
     *		arg0: proc name				(string)
     *		arg1: return code			(int)
     *		arg2: proc result			(string)
     *		arg3: proc result object		(Tcl_Obj*)
     */
    probe proc__result(TclDTraceStr name, int code, TclDTraceStr result,
	    struct Tcl_Obj *resultobj);
    /*
     *	tcl*:::proc-args probe
     *	    triggered before proc-entry probe, gives access to string
     *	    representation of proc arguments
     *		arg0: proc name				(string)
     *		arg1-arg9: proc arguments or NULL	(strings)
     */
    probe proc__args(TclDTraceStr name, TclDTraceStr arg1, TclDTraceStr arg2,
	    TclDTraceStr arg3, TclDTraceStr arg4, TclDTraceStr arg5,
	    TclDTraceStr arg6, TclDTraceStr arg7, TclDTraceStr arg8,
	    TclDTraceStr arg9);
    /*
     *	tcl*:::proc-info probe
     *	    triggered before proc-entry probe, gives access to TIP 280
     *	    information for the proc invocation (i.e. [info frame 0])
     *		arg0: TIP 280 cmd			(string)
     *		arg1: TIP 280 type			(string)
     *		arg2: TIP 280 proc			(string)
     *		arg3: TIP 280 file			(string)
     *		arg4: TIP 280 line			(int)
     *		arg5: TIP 280 level			(int)
     *		arg6: TclOO method			(string)
     *		arg7: TclOO class/object		(string)
     */
    probe proc__info(TclDTraceStr cmd, TclDTraceStr type, TclDTraceStr proc,
	    TclDTraceStr file, int line, int level, TclDTraceStr method,
	    TclDTraceStr class);

    /***************************** cmd probes ******************************/
    /*
     *	tcl*:::cmd-entry probe
     *	    triggered immediately before commmand execution
     *		arg0: command name			(string)
     *		arg1: number of arguments		(int)
     *		arg2: array of command argument objects	(Tcl_Obj**)
     */
    probe cmd__entry(TclDTraceStr name, int objc, struct Tcl_Obj **objv);
    /*
     *	tcl*:::cmd-return probe
     *	    triggered immediately after commmand execution
     *		arg0: command name			(string)
     *		arg1: return code			(int)
     */
    probe cmd__return(TclDTraceStr name, int code);
    /*
     *	tcl*:::cmd-result probe
     *	    triggered after cmd-return probe and result processing
     *		arg0: command name			(string)
     *		arg1: return code			(int)
     *		arg2: command result			(string)
     *		arg3: command result object		(Tcl_Obj*)
     */
    probe cmd__result(TclDTraceStr name, int code, TclDTraceStr result,
	    struct Tcl_Obj *resultobj);
    /*
     *	tcl*:::cmd-args probe
     *	    triggered before cmd-entry probe, gives access to string
     *	    representation of command arguments
     *		arg0: command name			(string)
     *		arg1-arg9: command arguments or NULL	(strings)
     */
    probe cmd__args(TclDTraceStr name, TclDTraceStr arg1, TclDTraceStr arg2,
	    TclDTraceStr arg3, TclDTraceStr arg4, TclDTraceStr arg5,
	    TclDTraceStr arg6, TclDTraceStr arg7, TclDTraceStr arg8,
	    TclDTraceStr arg9);
    /*
     *	tcl*:::cmd-info probe
     *	    triggered before cmd-entry probe, gives access to TIP 280
     *	    information for the command invocation (i.e. [info frame 0])
     *		arg0: TIP 280 cmd			(string)
     *		arg1: TIP 280 type			(string)
     *		arg2: TIP 280 proc			(string)
     *		arg3: TIP 280 file			(string)
     *		arg4: TIP 280 line			(int)
     *		arg5: TIP 280 level			(int)
     *		arg6: TclOO method			(string)
     *		arg7: TclOO class/object		(string)
     */
    probe cmd__info(TclDTraceStr cmd, TclDTraceStr type, TclDTraceStr proc,
	    TclDTraceStr file, int line, int level, TclDTraceStr method,
	    TclDTraceStr class);

    /***************************** inst probes *****************************/
    /*
     *	tcl*:::inst-start probe
     *	    triggered immediately before execution of a bytecode
     *		arg0: bytecode name			(string)
     *		arg1: depth of stack			(int)
     *		arg2: top of stack			(Tcl_Obj**)
     */
    probe inst__start(TclDTraceStr name, int depth, struct Tcl_Obj **stack);
    /*
     *	tcl*:::inst-done probe
     *	    triggered immediately after execution of a bytecode
     *		arg0: bytecode name			(string)
     *		arg1: depth of stack			(int)
     *		arg2: top of stack			(Tcl_Obj**)
     */
    probe inst__done(TclDTraceStr name, int depth, struct Tcl_Obj **stack);

    /***************************** obj probes ******************************/
    /*
     *	tcl*:::obj-create probe
     *	    triggered immediately after a new Tcl_Obj has been created
     *		arg0: object created			(Tcl_Obj*)
     */
    probe obj__create(struct Tcl_Obj* obj);
    /*
     *	tcl*:::obj-free probe
     *	    triggered immediately before a Tcl_Obj is freed
     *		arg0: object to be freed		(Tcl_Obj*)
     */
    probe obj__free(struct Tcl_Obj* obj);

    /***************************** tcl probes ******************************/
    /*
     *	tcl*:::tcl-probe probe
     *	    triggered when the ::tcl::dtrace command is called
     *		arg0-arg9: command arguments		(strings)
     */
    probe tcl__probe(TclDTraceStr arg0, TclDTraceStr arg1, TclDTraceStr arg2,
	    TclDTraceStr arg3, TclDTraceStr arg4, TclDTraceStr arg5,
	    TclDTraceStr arg6, TclDTraceStr arg7, TclDTraceStr arg8,
	    TclDTraceStr arg9);
};

/*
 * Tcl types and constants for use in DTrace scripts
 */

typedef struct Tcl_ObjType {
    char *name;
    void *freeIntRepProc;
    void *dupIntRepProc;
    void *updateStringProc;
    void *setFromAnyProc;
} Tcl_ObjType;

struct Tcl_Obj {
    int refCount;
    char *bytes;
    int length;
    Tcl_ObjType *typePtr;
    union {
	long longValue;
	double doubleValue;
	void *otherValuePtr;
	int64_t wideValue;
	struct {
	    void *ptr1;
	    void *ptr2;
	} twoPtrValue;
	struct {
	    void *ptr;
	    unsigned long value;
	} ptrAndLongRep;
    } internalRep;
};

enum return_codes {
    TCL_OK = 0,
    TCL_ERROR,
    TCL_RETURN,
    TCL_BREAK,
    TCL_CONTINUE
};

#pragma D attributes Evolving/Evolving/Common provider tcl provider
#pragma D attributes Private/Private/Common provider tcl module
#pragma D attributes Private/Private/Common provider tcl function
#pragma D attributes Evolving/Evolving/Common provider tcl name
#pragma D attributes Evolving/Evolving/Common provider tcl args

/*
 * Local Variables:
 * mode: c
 * c-basic-offset: 4
 * fill-column: 78
 * End:
 */

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