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tcltklib.c
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tcltklib.c
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/*
* tcltklib.c
* Aug. 27, 1997 Y. Shigehiro
* Oct. 24, 1997 Y. Matsumoto
*/
#define TCLTKLIB_RELEASE_DATE "2006-12-01"
#include "ruby.h"
#include "rubysig.h"
#include "version.h"
#undef EXTERN /* avoid conflict with tcl.h of tcl8.2 or before */
#include <stdio.h>
#ifdef HAVE_STDARG_PROTOTYPES
#include <stdarg.h>
#define va_init_list(a,b) va_start(a,b)
#else
#include <varargs.h>
#define va_init_list(a,b) va_start(a)
#endif
#include <string.h>
#include <tcl.h>
#include <tk.h>
#include "stubs.h"
#ifndef TCL_ALPHA_RELEASE
#define TCL_ALPHA_RELEASE 0
#define TCL_BETA_RELEASE 1
#define TCL_FINAL_RELEASE 2
#endif
#if TCL_MAJOR_VERSION >= 8
# ifndef CONST84
# if TCL_MAJOR_VERSION == 8 && TCL_MINOR_VERSION <= 4 /* Tcl8.0.x -- 8.4b1 */
# define CONST84
# else /* unknown (maybe TCL_VERSION >= 8.5) */
# ifdef CONST
# define CONST84 CONST
# else
# define CONST84
# endif
# endif
# endif
#else /* TCL_MAJOR_VERSION < 8 */
# ifdef CONST
# define CONST84 CONST
# else
# define CONST
# define CONST84
# endif
#endif
/* copied from eval.c */
#define TAG_RETURN 0x1
#define TAG_BREAK 0x2
#define TAG_NEXT 0x3
#define TAG_RETRY 0x4
#define TAG_REDO 0x5
#define TAG_RAISE 0x6
#define TAG_THROW 0x7
#define TAG_FATAL 0x8
/* for ruby_debug */
#define DUMP1(ARG1) if (ruby_debug) { fprintf(stderr, "tcltklib: %s\n", ARG1); fflush(stderr); }
#define DUMP2(ARG1, ARG2) if (ruby_debug) { fprintf(stderr, "tcltklib: ");\
fprintf(stderr, ARG1, ARG2); fprintf(stderr, "\n"); fflush(stderr); }
#define DUMP3(ARG1, ARG2, ARG3) if (ruby_debug) { fprintf(stderr, "tcltklib: ");\
fprintf(stderr, ARG1, ARG2, ARG3); fprintf(stderr, "\n"); fflush(stderr); }
/*
#define DUMP1(ARG1)
#define DUMP2(ARG1, ARG2)
#define DUMP3(ARG1, ARG2, ARG3)
*/
/* release date */
const char tcltklib_release_date[] = TCLTKLIB_RELEASE_DATE;
/* finalize_proc_name */
static char *finalize_hook_name = "INTERP_FINALIZE_HOOK";
static void ip_finalize _((Tcl_Interp*));
static int at_exit = 0;
/* for callback break & continue */
static VALUE eTkCallbackReturn;
static VALUE eTkCallbackBreak;
static VALUE eTkCallbackContinue;
static VALUE eLocalJumpError;
static VALUE eTkLocalJumpError;
static VALUE eTkCallbackRetry;
static VALUE eTkCallbackRedo;
static VALUE eTkCallbackThrow;
static VALUE tcltkip_class;
static ID ID_at_enc;
static ID ID_at_interp;
static ID ID_stop_p;
static ID ID_alive_p;
static ID ID_kill;
static ID ID_join;
static ID ID_value;
static ID ID_call;
static ID ID_backtrace;
static ID ID_message;
static ID ID_at_reason;
static ID ID_return;
static ID ID_break;
static ID ID_next;
static ID ID_to_s;
static ID ID_inspect;
static VALUE ip_invoke_real _((int, VALUE*, VALUE));
static VALUE ip_invoke _((int, VALUE*, VALUE));
static VALUE tk_funcall _((VALUE(), int, VALUE*, VALUE));
/* safe Tcl_Eval and Tcl_GlobalEval */
static int
tcl_eval(interp, cmd)
Tcl_Interp *interp;
const char *cmd; /* don't have to be writable */
{
char *buf = strdup(cmd);
int ret;
Tcl_AllowExceptions(interp);
ret = Tcl_Eval(interp, buf);
free(buf);
return ret;
}
#undef Tcl_Eval
#define Tcl_Eval tcl_eval
static int
tcl_global_eval(interp, cmd)
Tcl_Interp *interp;
const char *cmd; /* don't have to be writable */
{
char *buf = strdup(cmd);
int ret;
Tcl_AllowExceptions(interp);
ret = Tcl_GlobalEval(interp, buf);
free(buf);
return ret;
}
#undef Tcl_GlobalEval
#define Tcl_GlobalEval tcl_global_eval
/* Tcl_{Incr|Decr}RefCount for tcl7.x or earlier */
#if TCL_MAJOR_VERSION < 8
#define Tcl_IncrRefCount(obj) (1)
#define Tcl_DecrRefCount(obj) (1)
#endif
/* Tcl_GetStringResult for tcl7.x or earlier */
#if TCL_MAJOR_VERSION < 8
#define Tcl_GetStringResult(interp) ((interp)->result)
#endif
/* Tcl_[GS]etVar2Ex for tcl8.0 */
#if TCL_MAJOR_VERSION == 8 && TCL_MINOR_VERSION == 0
static Tcl_Obj *
Tcl_GetVar2Ex(interp, name1, name2, flags)
Tcl_Interp *interp;
CONST char *name1;
CONST char *name2;
int flags;
{
Tcl_Obj *nameObj1, *nameObj2 = NULL, *retObj;
nameObj1 = Tcl_NewStringObj((char*)name1, -1);
Tcl_IncrRefCount(nameObj1);
if (name2) {
nameObj2 = Tcl_NewStringObj((char*)name2, -1);
Tcl_IncrRefCount(nameObj2);
}
retObj = Tcl_ObjGetVar2(interp, nameObj1, nameObj2, flags);
if (name2) {
Tcl_DecrRefCount(nameObj2);
}
Tcl_DecrRefCount(nameObj1);
return retObj;
}
static Tcl_Obj *
Tcl_SetVar2Ex(interp, name1, name2, newValObj, flags)
Tcl_Interp *interp;
CONST char *name1;
CONST char *name2;
Tcl_Obj *newValObj;
int flags;
{
Tcl_Obj *nameObj1, *nameObj2 = NULL, *retObj;
nameObj1 = Tcl_NewStringObj((char*)name1, -1);
Tcl_IncrRefCount(nameObj1);
if (name2) {
nameObj2 = Tcl_NewStringObj((char*)name2, -1);
Tcl_IncrRefCount(nameObj2);
}
retObj = Tcl_ObjSetVar2(interp, nameObj1, nameObj2, newValObj, flags);
if (name2) {
Tcl_DecrRefCount(nameObj2);
}
Tcl_DecrRefCount(nameObj1);
return retObj;
}
#endif
/* from tkAppInit.c */
#if TCL_MAJOR_VERSION < 8 || (TCL_MAJOR_VERSION == 8 && TCL_MINOR_VERSION < 4)
# if !defined __MINGW32__ && !defined __BORLANDC__
/*
* The following variable is a special hack that is needed in order for
* Sun shared libraries to be used for Tcl.
*/
extern int matherr();
int *tclDummyMathPtr = (int *) matherr;
# endif
#endif
/*---- module TclTkLib ----*/
struct invoke_queue {
Tcl_Event ev;
int argc;
#if TCL_MAJOR_VERSION >= 8
Tcl_Obj **argv;
#else /* TCL_MAJOR_VERSION < 8 */
char **argv;
#endif
VALUE interp;
int *done;
int safe_level;
VALUE result;
VALUE thread;
};
struct eval_queue {
Tcl_Event ev;
char *str;
int len;
VALUE interp;
int *done;
int safe_level;
VALUE result;
VALUE thread;
};
struct call_queue {
Tcl_Event ev;
VALUE (*func)();
int argc;
VALUE *argv;
VALUE interp;
int *done;
int safe_level;
VALUE result;
VALUE thread;
};
void
invoke_queue_mark(struct invoke_queue *q)
{
rb_gc_mark(q->interp);
rb_gc_mark(q->result);
rb_gc_mark(q->thread);
}
void
eval_queue_mark(struct eval_queue *q)
{
rb_gc_mark(q->interp);
rb_gc_mark(q->result);
rb_gc_mark(q->thread);
}
void
call_queue_mark(struct call_queue *q)
{
int i;
for(i = 0; i < q->argc; i++) {
rb_gc_mark(q->argv[i]);
}
rb_gc_mark(q->interp);
rb_gc_mark(q->result);
rb_gc_mark(q->thread);
}
static VALUE eventloop_thread;
static VALUE eventloop_stack;
static VALUE watchdog_thread;
Tcl_Interp *current_interp;
/*
* 'event_loop_max' is a maximum events which the eventloop processes in one
* term of thread scheduling. 'no_event_tick' is the count-up value when
* there are no event for processing.
* 'timer_tick' is a limit of one term of thread scheduling.
* If 'timer_tick' == 0, then not use the timer for thread scheduling.
*/
#define DEFAULT_EVENT_LOOP_MAX 800/*counts*/
#define DEFAULT_NO_EVENT_TICK 10/*counts*/
#define DEFAULT_NO_EVENT_WAIT 20/*milliseconds ( 1 -- 999 ) */
#define WATCHDOG_INTERVAL 10/*milliseconds ( 1 -- 999 ) */
#define DEFAULT_TIMER_TICK 0/*milliseconds ( 0 -- 999 ) */
#define NO_THREAD_INTERRUPT_TIME 100/*milliseconds ( 1 -- 999 ) */
static int event_loop_max = DEFAULT_EVENT_LOOP_MAX;
static int no_event_tick = DEFAULT_NO_EVENT_TICK;
static int no_event_wait = DEFAULT_NO_EVENT_WAIT;
static int timer_tick = DEFAULT_TIMER_TICK;
static int req_timer_tick = DEFAULT_TIMER_TICK;
static int run_timer_flag = 0;
static int event_loop_wait_event = 0;
static int event_loop_abort_on_exc = 1;
static int loop_counter = 0;
static int check_rootwidget_flag = 0;
/* call ruby interpreter */
#if TCL_MAJOR_VERSION >= 8
static int ip_ruby_eval _((ClientData, Tcl_Interp *, int, Tcl_Obj *CONST*));
static int ip_ruby_cmd _((ClientData, Tcl_Interp *, int, Tcl_Obj *CONST*));
#else /* TCL_MAJOR_VERSION < 8 */
static int ip_ruby_eval _((ClientData, Tcl_Interp *, int, char **));
static int ip_ruby_cmd _((ClientData, Tcl_Interp *, int, char **));
#endif
struct cmd_body_arg {
VALUE receiver;
ID method;
VALUE args;
};
/*----------------------------*/
/* use Tcl internal functions */
/*----------------------------*/
#ifndef TCL_NAMESPACE_DEBUG
#define TCL_NAMESPACE_DEBUG 0
#endif
#if TCL_NAMESPACE_DEBUG
#if TCL_MAJOR_VERSION >= 8
EXTERN struct TclIntStubs *tclIntStubsPtr;
#endif
/*-- Tcl_GetCurrentNamespace --*/
#if TCL_MAJOR_VERSION == 8 && TCL_MINOR_VERSION < 5
/* Tcl7.x doesn't have namespace support. */
/* Tcl8.5+ has definition of Tcl_GetCurrentNamespace() in tclDecls.h */
# ifndef Tcl_GetCurrentNamespace
EXTERN Tcl_Namespace * Tcl_GetCurrentNamespace _((Tcl_Interp *));
# endif
# if defined(USE_TCL_STUBS) && !defined(USE_TCL_STUB_PROCS)
# ifndef Tcl_GetCurrentNamespace
# ifndef FunctionNum_of_GetCurrentNamespace
#define FunctionNum_of_GetCurrentNamespace 124
# endif
struct DummyTclIntStubs_for_GetCurrentNamespace {
int magic;
struct TclIntStubHooks *hooks;
void (*func[FunctionNum_of_GetCurrentNamespace])();
Tcl_Namespace * (*tcl_GetCurrentNamespace) _((Tcl_Interp *));
};
#define Tcl_GetCurrentNamespace \
(((struct DummyTclIntStubs_for_GetCurrentNamespace *)tclIntStubsPtr)->tcl_GetCurrentNamespace)
# endif
# endif
#endif
/* namespace check */
/* ip_null_namespace(Tcl_Interp *interp) */
#if TCL_MAJOR_VERSION < 8
#define ip_null_namespace(interp) (0)
#else /* support namespace */
#define ip_null_namespace(interp) \
(Tcl_GetCurrentNamespace(interp) == (Tcl_Namespace *)NULL)
#endif
/* rbtk_invalid_namespace(tcltkip *ptr) */
#if TCL_MAJOR_VERSION < 8
#define rbtk_invalid_namespace(ptr) (0)
#else /* support namespace */
#define rbtk_invalid_namespace(ptr) \
((ptr)->default_ns == (Tcl_Namespace*)NULL || Tcl_GetCurrentNamespace((ptr)->ip) != (ptr)->default_ns)
#endif
/*-- Tcl_PopCallFrame & Tcl_PushCallFrame --*/
#if TCL_MAJOR_VERSION >= 8
# ifndef CallFrame
typedef struct CallFrame {
Tcl_Namespace *nsPtr;
int dummy1;
int dummy2;
char *dummy3;
struct CallFrame *callerPtr;
struct CallFrame *callerVarPtr;
int level;
char *dummy7;
char *dummy8;
int dummy9;
char* dummy10;
} CallFrame;
# endif
# if !defined(TclGetFrame) && !defined(TclGetFrame_TCL_DECLARED)
EXTERN int TclGetFrame _((Tcl_Interp *, CONST char *, CallFrame **));
# endif
# if defined(USE_TCL_STUBS) && !defined(USE_TCL_STUB_PROCS)
# ifndef TclGetFrame
# ifndef FunctionNum_of_GetFrame
#define FunctionNum_of_GetFrame 32
# endif
struct DummyTclIntStubs_for_GetFrame {
int magic;
struct TclIntStubHooks *hooks;
void (*func[FunctionNum_of_GetFrame])();
int (*tclGetFrame) _((Tcl_Interp *, CONST char *, CallFrame **));
};
#define TclGetFrame \
(((struct DummyTclIntStubs_for_GetFrame *)tclIntStubsPtr)->tclGetFrame)
# endif
# endif
# if !defined(Tcl_PopCallFrame) && !defined(Tcl_PopCallFrame_TCL_DECLARED)
EXTERN void Tcl_PopCallFrame _((Tcl_Interp *));
EXTERN int Tcl_PushCallFrame _((Tcl_Interp *, Tcl_CallFrame *, Tcl_Namespace *, int));
# endif
# if defined(USE_TCL_STUBS) && !defined(USE_TCL_STUB_PROCS)
# ifndef Tcl_PopCallFrame
# ifndef FunctionNum_of_PopCallFrame
#define FunctionNum_of_PopCallFrame 128
# endif
struct DummyTclIntStubs_for_PopCallFrame {
int magic;
struct TclIntStubHooks *hooks;
void (*func[FunctionNum_of_PopCallFrame])();
void (*tcl_PopCallFrame) _((Tcl_Interp *));
int (*tcl_PushCallFrame) _((Tcl_Interp *, Tcl_CallFrame *, Tcl_Namespace *, int));
};
#define Tcl_PopCallFrame \
(((struct DummyTclIntStubs_for_PopCallFrame *)tclIntStubsPtr)->tcl_PopCallFrame)
#define Tcl_PushCallFrame \
(((struct DummyTclIntStubs_for_PopCallFrame *)tclIntStubsPtr)->tcl_PushCallFrame)
# endif
# endif
#else /* Tcl7.x */
# ifndef CallFrame
typedef struct CallFrame {
Tcl_HashTable varTable;
int level;
int argc;
char **argv;
struct CallFrame *callerPtr;
struct CallFrame *callerVarPtr;
} CallFrame;
# endif
# ifndef Tcl_CallFrame
#define Tcl_CallFrame CallFrame
# endif
# if !defined(TclGetFrame) && !defined(TclGetFrame_TCL_DECLARED)
EXTERN int TclGetFrame _((Tcl_Interp *, CONST char *, CallFrame **));
# endif
# if !defined(Tcl_PopCallFrame) && !defined(Tcl_PopCallFrame_TCL_DECLARED)
typedef struct DummyInterp {
char *dummy1;
char *dummy2;
int dummy3;
Tcl_HashTable dummy4;
Tcl_HashTable dummy5;
Tcl_HashTable dummy6;
int numLevels;
int maxNestingDepth;
CallFrame *framePtr;
CallFrame *varFramePtr;
} DummyInterp;
static void
Tcl_PopCallFrame(interp)
Tcl_Interp *interp;
{
DummyInterp *iPtr = (DummyInterp*)interp;
CallFrame *frame = iPtr->varFramePtr;
/* **** DUMMY **** */
iPtr->framePtr = frame.callerPtr;
iPtr->varFramePtr = frame.callerVarPtr;
return TCL_OK;
}
/* dummy */
#define Tcl_Namespace char
static int
Tcl_PushCallFrame(interp, framePtr, nsPtr, isProcCallFrame)
Tcl_Interp *interp;
Tcl_CallFrame *framePtr;
Tcl_Namespace *nsPtr;
int isProcCallFrame;
{
DummyInterp *iPtr = (DummyInterp*)interp;
CallFrame *frame = (CallFrame *)framePtr;
/* **** DUMMY **** */
Tcl_InitHashTable(&frame.varTable, TCL_STRING_KEYS);
if (iPtr->varFramePtr != NULL) {
frame.level = iPtr->varFramePtr->level + 1;
} else {
frame.level = 1;
}
frame.callerPtr = iPtr->framePtr;
frame.callerVarPtr = iPtr->varFramePtr;
iPtr->framePtr = &frame;
iPtr->varFramePtr = &frame;
return TCL_OK;
}
# endif
#endif
#endif /* TCL_NAMESPACE_DEBUG */
/*---- class TclTkIp ----*/
struct tcltkip {
Tcl_Interp *ip; /* the interpreter */
#if TCL_NAMESPACE_DEBUG
Tcl_Namespace *default_ns; /* default namespace */
#endif
int has_orig_exit; /* has original 'exit' command ? */
Tcl_CmdInfo orig_exit_info; /* command info of original 'exit' command */
int ref_count; /* reference count of rbtk_preserve_ip call */
int allow_ruby_exit; /* allow exiting ruby by 'exit' function */
int return_value; /* return value */
};
static struct tcltkip *
get_ip(self)
VALUE self;
{
struct tcltkip *ptr;
Data_Get_Struct(self, struct tcltkip, ptr);
if (ptr == 0) {
/* rb_raise(rb_eTypeError, "uninitialized TclTkIp"); */
return((struct tcltkip *)NULL);
}
if (ptr->ip == (Tcl_Interp*)NULL) {
/* rb_raise(rb_eRuntimeError, "deleted IP"); */
return((struct tcltkip *)NULL);
}
return ptr;
}
static int
deleted_ip(ptr)
struct tcltkip *ptr;
{
if (!ptr || !ptr->ip || Tcl_InterpDeleted(ptr->ip)
#if TCL_NAMESPACE_DEBUG
|| rbtk_invalid_namespace(ptr)
#endif
) {
DUMP1("ip is deleted");
return Qtrue;
}
return Qfalse;
}
/* increment/decrement reference count of tcltkip */
static int
rbtk_preserve_ip(ptr)
struct tcltkip *ptr;
{
ptr->ref_count++;
if (ptr->ip == (Tcl_Interp*)NULL) {
/* deleted IP */
ptr->ref_count = 0;
} else {
Tcl_Preserve((ClientData)ptr->ip);
}
return(ptr->ref_count);
}
static int
rbtk_release_ip(ptr)
struct tcltkip *ptr;
{
ptr->ref_count--;
if (ptr->ref_count < 0) {
ptr->ref_count = 0;
} else if (ptr->ip == (Tcl_Interp*)NULL) {
/* deleted IP */
ptr->ref_count = 0;
} else {
Tcl_Release((ClientData)ptr->ip);
}
return(ptr->ref_count);
}
static VALUE
#ifdef HAVE_STDARG_PROTOTYPES
create_ip_exc(VALUE interp, VALUE exc, const char *fmt, ...)
#else
create_ip_exc(interp, exc, fmt, va_alist)
VALUE interp:
VALUE exc;
const char *fmt;
va_dcl
#endif
{
va_list args;
char buf[BUFSIZ];
VALUE einfo;
struct tcltkip *ptr = get_ip(interp);
va_init_list(args,fmt);
vsnprintf(buf, BUFSIZ, fmt, args);
buf[BUFSIZ - 1] = '\0';
va_end(args);
einfo = rb_exc_new2(exc, buf);
rb_ivar_set(einfo, ID_at_interp, interp);
if (ptr) {
Tcl_ResetResult(ptr->ip);
}
return einfo;
}
/* stub status */
static void
tcl_stubs_check()
{
if (!tcl_stubs_init_p()) {
int st = ruby_tcl_stubs_init();
switch(st) {
case TCLTK_STUBS_OK:
break;
case NO_TCL_DLL:
rb_raise(rb_eLoadError, "tcltklib: fail to open tcl_dll");
case NO_FindExecutable:
rb_raise(rb_eLoadError, "tcltklib: can't find Tcl_FindExecutable");
case NO_CreateInterp:
rb_raise(rb_eLoadError, "tcltklib: can't find Tcl_CreateInterp()");
case NO_DeleteInterp:
rb_raise(rb_eLoadError, "tcltklib: can't find Tcl_DeleteInterp()");
case FAIL_CreateInterp:
rb_raise(rb_eRuntimeError, "tcltklib: fail to create a new IP to call Tcl_InitStubs()");
case FAIL_Tcl_InitStubs:
rb_raise(rb_eRuntimeError, "tcltklib: fail to Tcl_InitStubs()");
default:
rb_raise(rb_eRuntimeError, "tcltklib: unknown error(%d) on ruby_tcl_stubs_init()", st);
}
}
}
static VALUE
tcltkip_init_tk(interp)
VALUE interp;
{
struct tcltkip *ptr = get_ip(interp);
#if TCL_MAJOR_VERSION >= 8
int st;
if (Tcl_IsSafe(ptr->ip)) {
DUMP1("Tk_SafeInit");
st = ruby_tk_stubs_safeinit(ptr->ip);
switch(st) {
case TCLTK_STUBS_OK:
break;
case NO_Tk_Init:
return rb_exc_new2(rb_eLoadError,
"tcltklib: can't find Tk_SafeInit()");
case FAIL_Tk_Init:
return create_ip_exc(interp, rb_eRuntimeError,
"tcltklib: fail to Tk_SafeInit(). %s",
Tcl_GetStringResult(ptr->ip));
case FAIL_Tk_InitStubs:
return create_ip_exc(interp, rb_eRuntimeError,
"tcltklib: fail to Tk_InitStubs(). %s",
Tcl_GetStringResult(ptr->ip));
default:
return create_ip_exc(interp, rb_eRuntimeError,
"tcltklib: unknown error(%d) on ruby_tk_stubs_safeinit", st);
}
} else {
DUMP1("Tk_Init");
st = ruby_tk_stubs_init(ptr->ip);
switch(st) {
case TCLTK_STUBS_OK:
break;
case NO_Tk_Init:
return rb_exc_new2(rb_eLoadError,
"tcltklib: can't find Tk_Init()");
case FAIL_Tk_Init:
return create_ip_exc(interp, rb_eRuntimeError,
"tcltklib: fail to Tk_Init(). %s",
Tcl_GetStringResult(ptr->ip));
case FAIL_Tk_InitStubs:
return create_ip_exc(interp, rb_eRuntimeError,
"tcltklib: fail to Tk_InitStubs(). %s",
Tcl_GetStringResult(ptr->ip));
default:
return create_ip_exc(interp, rb_eRuntimeError,
"tcltklib: unknown error(%d) on ruby_tk_stubs_init", st);
}
}
#else /* TCL_MAJOR_VERSION < 8 */
DUMP1("Tk_Init");
if (ruby_tk_stubs_init(ptr->ip) != TCLTK_STUBS_OK) {
return rb_exc_new2(rb_eRuntimeError, ptr->ip->result);
}
#endif
return Qnil;
}
/* treat excetiopn on Tcl side */
static VALUE rbtk_pending_exception;
static int rbtk_eventloop_depth = 0;
static int
pending_exception_check0()
{
volatile VALUE exc = rbtk_pending_exception;
if (!NIL_P(exc) && rb_obj_is_kind_of(exc, rb_eException)) {
DUMP1("find a pending exception");
if (rbtk_eventloop_depth > 0) {
return 1; /* pending */
} else {
rbtk_pending_exception = Qnil;
if (rb_obj_is_kind_of(exc, eTkCallbackRetry)) {
DUMP1("pending_exception_check0: call rb_jump_tag(retry)");
rb_jump_tag(TAG_RETRY);
} else if (rb_obj_is_kind_of(exc, eTkCallbackRedo)) {
DUMP1("pending_exception_check0: call rb_jump_tag(redo)");
rb_jump_tag(TAG_REDO);
} else if (rb_obj_is_kind_of(exc, eTkCallbackThrow)) {
DUMP1("pending_exception_check0: call rb_jump_tag(throw)");
rb_jump_tag(TAG_THROW);
}
rb_exc_raise(exc);
}
} else {
return 0;
}
}
static int
pending_exception_check1(thr_crit_bup, ptr)
int thr_crit_bup;
struct tcltkip *ptr;
{
volatile VALUE exc = rbtk_pending_exception;
if (!NIL_P(exc) && rb_obj_is_kind_of(exc, rb_eException)) {
DUMP1("find a pending exception");
if (rbtk_eventloop_depth > 0) {
return 1; /* pending */
} else {
rbtk_pending_exception = Qnil;
if (ptr != (struct tcltkip *)NULL) {
/* Tcl_Release(ptr->ip); */
rbtk_release_ip(ptr);
}
rb_thread_critical = thr_crit_bup;
if (rb_obj_is_kind_of(exc, eTkCallbackRetry)) {
DUMP1("pending_exception_check1: call rb_jump_tag(retry)");
rb_jump_tag(TAG_RETRY);
} else if (rb_obj_is_kind_of(exc, eTkCallbackRedo)) {
DUMP1("pending_exception_check1: call rb_jump_tag(redo)");
rb_jump_tag(TAG_REDO);
} else if (rb_obj_is_kind_of(exc, eTkCallbackThrow)) {
DUMP1("pending_exception_check1: call rb_jump_tag(throw)");
rb_jump_tag(TAG_THROW);
}
rb_exc_raise(exc);
}
} else {
return 0;
}
}
/* call original 'exit' command */
static void
call_original_exit(ptr, state)
struct tcltkip *ptr;
int state;
{
int thr_crit_bup;
Tcl_CmdInfo *info;
#if TCL_MAJOR_VERSION >= 8
Tcl_Obj *state_obj;
#endif
if (!(ptr->has_orig_exit)) return;
thr_crit_bup = rb_thread_critical;
rb_thread_critical = Qtrue;
Tcl_ResetResult(ptr->ip);
info = &(ptr->orig_exit_info);
/* memory allocation for arguments of this command */
#if TCL_MAJOR_VERSION >= 8
state_obj = Tcl_NewIntObj(state);
Tcl_IncrRefCount(state_obj);
if (info->isNativeObjectProc) {
Tcl_Obj **argv;
argv = (Tcl_Obj **)ALLOC_N(Tcl_Obj *, 3);
argv[0] = Tcl_NewStringObj("exit", 4);
argv[1] = state_obj;
argv[2] = (Tcl_Obj *)NULL;
ptr->return_value
= (*(info->objProc))(info->objClientData, ptr->ip, 2, argv);
free(argv);
} else {
/* string interface */
char **argv;
argv = (char **)ALLOC_N(char *, 3);
argv[0] = "exit";
/* argv[1] = Tcl_GetString(state_obj); */
argv[1] = Tcl_GetStringFromObj(state_obj, (int*)NULL);
argv[2] = (char *)NULL;
ptr->return_value = (*(info->proc))(info->clientData, ptr->ip,
2, (CONST84 char **)argv);
free(argv);
}
Tcl_DecrRefCount(state_obj);
#else /* TCL_MAJOR_VERSION < 8 */
{
/* string interface */
char **argv;
argv = (char **)ALLOC_N(char *, 3);
argv[0] = "exit";
argv[1] = RSTRING(rb_fix2str(INT2NUM(state), 10))->ptr;
argv[2] = (char *)NULL;
ptr->return_value = (*(info->proc))(info->clientData, ptr->ip,
2, argv);
free(argv);
}
#endif
rb_thread_critical = thr_crit_bup;
}
/* Tk_ThreadTimer */
static Tcl_TimerToken timer_token = (Tcl_TimerToken)NULL;
/* timer callback */
static void _timer_for_tcl _((ClientData));
static void
_timer_for_tcl(clientData)
ClientData clientData;
{
int thr_crit_bup;
/* struct invoke_queue *q, *tmp; */
/* VALUE thread; */
DUMP1("call _timer_for_tcl");
thr_crit_bup = rb_thread_critical;
rb_thread_critical = Qtrue;
Tcl_DeleteTimerHandler(timer_token);
run_timer_flag = 1;
if (timer_tick > 0) {
timer_token = Tcl_CreateTimerHandler(timer_tick, _timer_for_tcl,
(ClientData)0);
} else {
timer_token = (Tcl_TimerToken)NULL;
}
rb_thread_critical = thr_crit_bup;
/* rb_thread_schedule(); */
/* tick_counter += event_loop_max; */
}
static VALUE
set_eventloop_tick(self, tick)
VALUE self;
VALUE tick;
{
int ttick = NUM2INT(tick);
int thr_crit_bup;
rb_secure(4);
if (ttick < 0) {
rb_raise(rb_eArgError,
"timer-tick parameter must be 0 or positive number");
}
thr_crit_bup = rb_thread_critical;
rb_thread_critical = Qtrue;
/* delete old timer callback */
Tcl_DeleteTimerHandler(timer_token);
timer_tick = req_timer_tick = ttick;
if (timer_tick > 0) {
/* start timer callback */
timer_token = Tcl_CreateTimerHandler(timer_tick, _timer_for_tcl,
(ClientData)0);
} else {
timer_token = (Tcl_TimerToken)NULL;
}
rb_thread_critical = thr_crit_bup;
return tick;
}
static VALUE
get_eventloop_tick(self)
VALUE self;
{
return INT2NUM(timer_tick);
}
static VALUE
ip_set_eventloop_tick(self, tick)
VALUE self;
VALUE tick;
{
struct tcltkip *ptr = get_ip(self);