810 lines
25 KiB
C
810 lines
25 KiB
C
/* Jim - A small embeddable Tcl interpreter
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*
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* Copyright 2005 Salvatore Sanfilippo <antirez@invece.org>
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* Copyright 2005 Clemens Hintze <c.hintze@gmx.net>
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* Copyright 2005 patthoyts - Pat Thoyts <patthoyts@users.sf.net>
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* Copyright 2008 oharboe - Øyvind Harboe - oyvind.harboe@zylin.com
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* Copyright 2008 Andrew Lunn <andrew@lunn.ch>
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* Copyright 2008 Duane Ellis <openocd@duaneellis.com>
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* Copyright 2008 Uwe Klein <uklein@klein-messgeraete.de>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials
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* provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE JIM TCL PROJECT ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
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* PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* JIM TCL PROJECT OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
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* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* The views and conclusions contained in the software and documentation
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* are those of the authors and should not be interpreted as representing
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* official policies, either expressed or implied, of the Jim Tcl Project.
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**/
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#include "jimautoconf.h"
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#include <jim.h>
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#include <jim-eventloop.h>
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#include <time.h>
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#include <string.h>
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#include <errno.h>
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#ifdef HAVE_UNISTD_H
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#include <unistd.h>
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#endif
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#ifdef HAVE_SYS_TIME_H
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#include <sys/time.h>
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#endif
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#if defined(__MINGW32__)
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#include <windows.h>
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#include <winsock.h>
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#ifndef HAVE_USLEEP
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#define usleep(US) Sleep((US) / 1000)
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#define HAVE_USLEEP
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#endif
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#else
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#include <sys/types.h>
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#ifdef HAVE_SYS_SELECT_H
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#include <sys/select.h>
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#endif
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#endif
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#ifndef HAVE_USLEEP
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/* XXX: Implement this in terms of select() or nanosleep() */
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#define usleep(US) sleep((US) / 1000000)
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#warning "sub-second sleep not supported"
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#endif
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/* --- */
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/* File event structure */
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typedef struct Jim_FileEvent
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{
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int fd;
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int mask; /* one of JIM_EVENT_(READABLE|WRITABLE|EXCEPTION) */
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Jim_FileProc *fileProc;
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Jim_EventFinalizerProc *finalizerProc;
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void *clientData;
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struct Jim_FileEvent *next;
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} Jim_FileEvent;
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/* Time event structure */
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typedef struct Jim_TimeEvent
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{
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jim_wide id; /* time event identifier. */
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jim_wide initialus; /* initial relative timer value in microseconds */
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jim_wide when; /* microseconds */
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Jim_TimeProc *timeProc;
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Jim_EventFinalizerProc *finalizerProc;
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void *clientData;
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struct Jim_TimeEvent *next;
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} Jim_TimeEvent;
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/* Per-interp stucture containing the state of the event loop */
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typedef struct Jim_EventLoop
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{
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Jim_FileEvent *fileEventHead;
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Jim_TimeEvent *timeEventHead;
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jim_wide timeEventNextId; /* highest event id created, starting at 1 */
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time_t timeBase;
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int suppress_bgerror; /* bgerror returned break, so don't call it again */
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} Jim_EventLoop;
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static void JimAfterTimeHandler(Jim_Interp *interp, void *clientData);
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static void JimAfterTimeEventFinalizer(Jim_Interp *interp, void *clientData);
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int Jim_EvalObjBackground(Jim_Interp *interp, Jim_Obj *scriptObjPtr)
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{
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Jim_EventLoop *eventLoop = Jim_GetAssocData(interp, "eventloop");
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Jim_CallFrame *savedFramePtr;
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int retval;
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savedFramePtr = interp->framePtr;
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interp->framePtr = interp->topFramePtr;
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retval = Jim_EvalObj(interp, scriptObjPtr);
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interp->framePtr = savedFramePtr;
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/* Try to report the error (if any) via the bgerror proc */
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if (retval != JIM_OK && retval != JIM_RETURN && !eventLoop->suppress_bgerror) {
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Jim_Obj *objv[2];
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int rc = JIM_ERR;
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objv[0] = Jim_NewStringObj(interp, "bgerror", -1);
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objv[1] = Jim_GetResult(interp);
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Jim_IncrRefCount(objv[0]);
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Jim_IncrRefCount(objv[1]);
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if (Jim_GetCommand(interp, objv[0], JIM_NONE) == NULL || (rc = Jim_EvalObjVector(interp, 2, objv)) != JIM_OK) {
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if (rc == JIM_BREAK) {
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/* No more bgerror calls */
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eventLoop->suppress_bgerror++;
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}
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else {
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/* Report the error to stderr. */
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Jim_MakeErrorMessage(interp);
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fprintf(stderr, "%s\n", Jim_String(Jim_GetResult(interp)));
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/* And reset the result */
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Jim_SetResultString(interp, "", -1);
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}
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}
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Jim_DecrRefCount(interp, objv[0]);
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Jim_DecrRefCount(interp, objv[1]);
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}
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return retval;
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}
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/**
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* Register a file event handler on the given file descriptor with the given mask
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* (may be 1 or more of JIM_EVENT_xxx)
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*
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* When the event occurs, proc is called with clientData and the mask of events that occurred.
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* When the filehandler is removed, finalizerProc is called.
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*
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* Note that no check is made that only one handler is registered for the given
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* event(s).
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*/
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void Jim_CreateFileHandler(Jim_Interp *interp, int fd, int mask,
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Jim_FileProc * proc, void *clientData, Jim_EventFinalizerProc * finalizerProc)
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{
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Jim_FileEvent *fe;
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Jim_EventLoop *eventLoop = Jim_GetAssocData(interp, "eventloop");
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fe = Jim_Alloc(sizeof(*fe));
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fe->fd = fd;
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fe->mask = mask;
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fe->fileProc = proc;
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fe->finalizerProc = finalizerProc;
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fe->clientData = clientData;
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fe->next = eventLoop->fileEventHead;
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eventLoop->fileEventHead = fe;
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}
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static int JimEventHandlerScript(Jim_Interp *interp, void *clientData, int mask)
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{
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return Jim_EvalObjBackground(interp, (Jim_Obj *)clientData);
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}
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static void JimEventHandlerScriptFinalize(Jim_Interp *interp, void *clientData)
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{
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Jim_DecrRefCount(interp, (Jim_Obj *)clientData);
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}
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/**
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* A convenience version of Jim_CreateFileHandler() which evaluates
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* scriptObj with Jim_EvalObjBackground() when the event occurs.
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*/
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void Jim_CreateScriptFileHandler(Jim_Interp *interp, int fd, int mask,
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Jim_Obj *scriptObj)
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{
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Jim_IncrRefCount(scriptObj);
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Jim_CreateFileHandler(interp, fd, mask, JimEventHandlerScript, scriptObj, JimEventHandlerScriptFinalize);
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}
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/**
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* If there is a file handler registered with the given mask, return the clientData
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* for the (first) handler.
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* Otherwise return NULL.
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*/
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void *Jim_FindFileHandler(Jim_Interp *interp, int fd, int mask)
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{
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Jim_FileEvent *fe;
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Jim_EventLoop *eventLoop = Jim_GetAssocData(interp, "eventloop");
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for (fe = eventLoop->fileEventHead; fe; fe = fe->next) {
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if (fe->fd == fd && (fe->mask & mask)) {
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return fe->clientData;
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}
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}
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return NULL;
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}
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/**
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* Removes all event handlers for 'handle' that match 'mask'.
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*/
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void Jim_DeleteFileHandler(Jim_Interp *interp, int fd, int mask)
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{
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Jim_FileEvent *fe, *next, *prev = NULL;
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Jim_EventLoop *eventLoop = Jim_GetAssocData(interp, "eventloop");
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for (fe = eventLoop->fileEventHead; fe; fe = next) {
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next = fe->next;
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if (fe->fd == fd && (fe->mask & mask)) {
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/* Remove this entry from the list */
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if (prev == NULL)
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eventLoop->fileEventHead = next;
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else
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prev->next = next;
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if (fe->finalizerProc)
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fe->finalizerProc(interp, fe->clientData);
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Jim_Free(fe);
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continue;
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}
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prev = fe;
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}
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}
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/**
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* Returns the time since interp creation in microseconds.
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*/
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static jim_wide JimGetTimeUsec(Jim_EventLoop *eventLoop)
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{
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long long now;
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struct timeval tv;
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#if defined(HAVE_CLOCK_GETTIME) && defined(CLOCK_MONOTONIC_RAW)
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struct timespec ts;
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if (clock_gettime(CLOCK_MONOTONIC_RAW, &ts) == 0) {
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now = ts.tv_sec * 1000000LL + ts.tv_nsec / 1000;
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}
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else
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#endif
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{
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gettimeofday(&tv, NULL);
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now = tv.tv_sec * 1000000LL + tv.tv_usec;
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}
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return now - eventLoop->timeBase;
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}
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jim_wide Jim_CreateTimeHandler(Jim_Interp *interp, jim_wide us,
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Jim_TimeProc * proc, void *clientData, Jim_EventFinalizerProc * finalizerProc)
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{
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Jim_EventLoop *eventLoop = Jim_GetAssocData(interp, "eventloop");
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jim_wide id = ++eventLoop->timeEventNextId;
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Jim_TimeEvent *te, *e, *prev;
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te = Jim_Alloc(sizeof(*te));
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te->id = id;
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te->initialus = us;
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te->when = JimGetTimeUsec(eventLoop) + us;
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te->timeProc = proc;
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te->finalizerProc = finalizerProc;
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te->clientData = clientData;
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/* Add to the appropriate place in the list */
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prev = NULL;
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for (e = eventLoop->timeEventHead; e; e = e->next) {
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if (te->when < e->when) {
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break;
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}
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prev = e;
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}
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if (prev) {
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te->next = prev->next;
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prev->next = te;
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}
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else {
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te->next = eventLoop->timeEventHead;
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eventLoop->timeEventHead = te;
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}
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return id;
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}
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static jim_wide JimParseAfterId(Jim_Obj *idObj)
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{
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const char *tok = Jim_String(idObj);
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jim_wide id;
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if (strncmp(tok, "after#", 6) == 0 && Jim_StringToWide(tok + 6, &id, 10) == JIM_OK) {
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/* Got an event by id */
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return id;
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}
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return -1;
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}
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static jim_wide JimFindAfterByScript(Jim_EventLoop *eventLoop, Jim_Obj *scriptObj)
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{
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Jim_TimeEvent *te;
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for (te = eventLoop->timeEventHead; te; te = te->next) {
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/* Is this an 'after' event? */
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if (te->timeProc == JimAfterTimeHandler) {
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if (Jim_StringEqObj(scriptObj, te->clientData)) {
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return te->id;
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}
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}
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}
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return -1; /* NO event with the specified ID found */
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}
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static Jim_TimeEvent *JimFindTimeHandlerById(Jim_EventLoop *eventLoop, jim_wide id)
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{
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Jim_TimeEvent *te;
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for (te = eventLoop->timeEventHead; te; te = te->next) {
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if (te->id == id) {
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return te;
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}
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}
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return NULL;
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}
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static Jim_TimeEvent *Jim_RemoveTimeHandler(Jim_EventLoop *eventLoop, jim_wide id)
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{
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Jim_TimeEvent *te, *prev = NULL;
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for (te = eventLoop->timeEventHead; te; te = te->next) {
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if (te->id == id) {
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if (prev == NULL)
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eventLoop->timeEventHead = te->next;
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else
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prev->next = te->next;
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return te;
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}
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prev = te;
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}
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return NULL;
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}
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static void Jim_FreeTimeHandler(Jim_Interp *interp, Jim_TimeEvent *te)
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{
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if (te->finalizerProc)
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te->finalizerProc(interp, te->clientData);
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Jim_Free(te);
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}
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jim_wide Jim_DeleteTimeHandler(Jim_Interp *interp, jim_wide id)
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{
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Jim_TimeEvent *te;
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Jim_EventLoop *eventLoop = Jim_GetAssocData(interp, "eventloop");
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if (id > eventLoop->timeEventNextId) {
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return -2; /* wrong event ID */
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}
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te = Jim_RemoveTimeHandler(eventLoop, id);
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if (te) {
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jim_wide remain;
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remain = te->when - JimGetTimeUsec(eventLoop);
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remain = (remain < 0) ? 0 : remain;
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Jim_FreeTimeHandler(interp, te);
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return remain;
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}
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return -1; /* NO event with the specified ID found */
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}
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/* --- POSIX version of Jim_ProcessEvents, for now the only available --- */
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/* Process every pending time event, then every pending file event
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* (that may be registered by time event callbacks just processed).
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* The behaviour depends upon the setting of flags:
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*
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* If flags is 0, the function does nothing and returns.
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* if flags has JIM_ALL_EVENTS set, all event types are processed.
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* if flags has JIM_FILE_EVENTS set, file events are processed.
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* if flags has JIM_TIME_EVENTS set, time events are processed.
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* if flags has JIM_DONT_WAIT set, the function returns as soon as all
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* the events that are possible to process without waiting are processed.
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*
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* Returns the number of events processed or -1 if
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* there are no matching handlers, or -2 on error.
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*/
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int Jim_ProcessEvents(Jim_Interp *interp, int flags)
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{
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jim_wide sleep_us = -1;
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int processed = 0;
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Jim_EventLoop *eventLoop = Jim_GetAssocData(interp, "eventloop");
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Jim_FileEvent *fe = eventLoop->fileEventHead;
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Jim_TimeEvent *te;
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jim_wide maxId;
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if ((flags & JIM_FILE_EVENTS) == 0 || fe == NULL) {
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/* No file events */
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if ((flags & JIM_TIME_EVENTS) == 0 || eventLoop->timeEventHead == NULL) {
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/* No time events */
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return -1;
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}
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}
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/* Note that we want call select() even if there are no
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* file events to process as long as we want to process time
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* events, in order to sleep until the next time event is ready
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* to fire. */
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if (flags & JIM_DONT_WAIT) {
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/* Wait no time */
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sleep_us = 0;
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}
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else if (flags & JIM_TIME_EVENTS) {
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/* The nearest timer is always at the head of the list */
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if (eventLoop->timeEventHead) {
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Jim_TimeEvent *shortest = eventLoop->timeEventHead;
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/* Calculate the time missing for the nearest
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* timer to fire. */
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sleep_us = shortest->when - JimGetTimeUsec(eventLoop);
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if (sleep_us < 0) {
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sleep_us = 0;
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}
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}
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else {
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/* Wait forever */
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sleep_us = -1;
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}
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}
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#ifdef HAVE_SELECT
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if (flags & JIM_FILE_EVENTS) {
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int retval;
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struct timeval tv, *tvp = NULL;
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fd_set rfds, wfds, efds;
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int maxfd = -1;
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FD_ZERO(&rfds);
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FD_ZERO(&wfds);
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FD_ZERO(&efds);
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/* Check file events */
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while (fe != NULL) {
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if (fe->mask & JIM_EVENT_READABLE)
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FD_SET(fe->fd, &rfds);
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if (fe->mask & JIM_EVENT_WRITABLE)
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FD_SET(fe->fd, &wfds);
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if (fe->mask & JIM_EVENT_EXCEPTION)
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FD_SET(fe->fd, &efds);
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if (maxfd < fe->fd)
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maxfd = fe->fd;
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fe = fe->next;
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}
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if (sleep_us >= 0) {
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tvp = &tv;
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tvp->tv_sec = sleep_us / 1000000;
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tvp->tv_usec = sleep_us % 1000000;
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}
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retval = select(maxfd + 1, &rfds, &wfds, &efds, tvp);
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if (retval < 0) {
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if (errno == EINVAL) {
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/* This can happen on mingw32 if a non-socket filehandle is passed */
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Jim_SetResultString(interp, "non-waitable filehandle", -1);
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return -2;
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}
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}
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else if (retval > 0) {
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fe = eventLoop->fileEventHead;
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while (fe != NULL) {
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int mask = 0;
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int fd = fe->fd;
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if ((fe->mask & JIM_EVENT_READABLE) && FD_ISSET(fd, &rfds))
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mask |= JIM_EVENT_READABLE;
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if (fe->mask & JIM_EVENT_WRITABLE && FD_ISSET(fd, &wfds))
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mask |= JIM_EVENT_WRITABLE;
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if (fe->mask & JIM_EVENT_EXCEPTION && FD_ISSET(fd, &efds))
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mask |= JIM_EVENT_EXCEPTION;
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if (mask) {
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int ret = fe->fileProc(interp, fe->clientData, mask);
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if (ret != JIM_OK && ret != JIM_RETURN) {
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/* Remove the element on handler error */
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Jim_DeleteFileHandler(interp, fd, mask);
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/* At this point fe is no longer valid - it will be assigned below */
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}
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processed++;
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/* After an event is processed our file event list
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* may no longer be the same, so what we do
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* is to clear the bit for this file descriptor and
|
|
* restart again from the head. */
|
|
FD_CLR(fd, &rfds);
|
|
FD_CLR(fd, &wfds);
|
|
FD_CLR(fd, &efds);
|
|
fe = eventLoop->fileEventHead;
|
|
}
|
|
else {
|
|
fe = fe->next;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
#else
|
|
if (sleep_us > 0) {
|
|
usleep(sleep_us);
|
|
}
|
|
#endif
|
|
|
|
/* Check time events */
|
|
te = eventLoop->timeEventHead;
|
|
maxId = eventLoop->timeEventNextId;
|
|
while (te) {
|
|
jim_wide id;
|
|
|
|
if (te->id > maxId) {
|
|
te = te->next;
|
|
continue;
|
|
}
|
|
if (JimGetTimeUsec(eventLoop) >= te->when) {
|
|
id = te->id;
|
|
/* Remove from the list before executing */
|
|
Jim_RemoveTimeHandler(eventLoop, id);
|
|
te->timeProc(interp, te->clientData);
|
|
/* After an event is processed our time event list may
|
|
* no longer be the same, so we restart from head.
|
|
* Still we make sure to don't process events registered
|
|
* by event handlers itself in order to don't loop forever
|
|
* even in case an [after 0] that continuously register
|
|
* itself. To do so we saved the max ID we want to handle. */
|
|
Jim_FreeTimeHandler(interp, te);
|
|
|
|
te = eventLoop->timeEventHead;
|
|
processed++;
|
|
}
|
|
else {
|
|
te = te->next;
|
|
}
|
|
}
|
|
|
|
return processed;
|
|
}
|
|
|
|
/* ---------------------------------------------------------------------- */
|
|
|
|
static void JimELAssocDataDeleProc(Jim_Interp *interp, void *data)
|
|
{
|
|
void *next;
|
|
Jim_FileEvent *fe;
|
|
Jim_TimeEvent *te;
|
|
Jim_EventLoop *eventLoop = data;
|
|
|
|
fe = eventLoop->fileEventHead;
|
|
while (fe) {
|
|
next = fe->next;
|
|
if (fe->finalizerProc)
|
|
fe->finalizerProc(interp, fe->clientData);
|
|
Jim_Free(fe);
|
|
fe = next;
|
|
}
|
|
|
|
te = eventLoop->timeEventHead;
|
|
while (te) {
|
|
next = te->next;
|
|
if (te->finalizerProc)
|
|
te->finalizerProc(interp, te->clientData);
|
|
Jim_Free(te);
|
|
te = next;
|
|
}
|
|
Jim_Free(data);
|
|
}
|
|
|
|
static int JimELVwaitCommand(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
|
|
{
|
|
Jim_EventLoop *eventLoop = Jim_CmdPrivData(interp);
|
|
Jim_Obj *oldValue;
|
|
int rc;
|
|
|
|
if (argc != 2) {
|
|
Jim_WrongNumArgs(interp, 1, argv, "name");
|
|
return JIM_ERR;
|
|
}
|
|
|
|
oldValue = Jim_GetGlobalVariable(interp, argv[1], JIM_NONE);
|
|
if (oldValue) {
|
|
Jim_IncrRefCount(oldValue);
|
|
}
|
|
else {
|
|
/* If a result was left, it is an error */
|
|
if (Jim_Length(Jim_GetResult(interp))) {
|
|
return JIM_ERR;
|
|
}
|
|
}
|
|
|
|
eventLoop->suppress_bgerror = 0;
|
|
|
|
while ((rc = Jim_ProcessEvents(interp, JIM_ALL_EVENTS)) >= 0) {
|
|
Jim_Obj *currValue;
|
|
currValue = Jim_GetGlobalVariable(interp, argv[1], JIM_NONE);
|
|
/* Stop the loop if the vwait-ed variable changed value,
|
|
* or if was unset and now is set (or the contrary)
|
|
* or if a signal was caught
|
|
*/
|
|
if ((oldValue && !currValue) ||
|
|
(!oldValue && currValue) ||
|
|
(oldValue && currValue && !Jim_StringEqObj(oldValue, currValue)) ||
|
|
Jim_CheckSignal(interp)) {
|
|
break;
|
|
}
|
|
}
|
|
if (oldValue)
|
|
Jim_DecrRefCount(interp, oldValue);
|
|
|
|
if (rc == -2) {
|
|
return JIM_ERR;
|
|
}
|
|
|
|
Jim_SetEmptyResult(interp);
|
|
return JIM_OK;
|
|
}
|
|
|
|
static int JimELUpdateCommand(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
|
|
{
|
|
Jim_EventLoop *eventLoop = Jim_CmdPrivData(interp);
|
|
static const char * const options[] = {
|
|
"idletasks", NULL
|
|
};
|
|
enum { UPDATE_IDLE, UPDATE_NONE };
|
|
int option = UPDATE_NONE;
|
|
int flags = JIM_TIME_EVENTS;
|
|
|
|
if (argc == 1) {
|
|
flags = JIM_ALL_EVENTS;
|
|
}
|
|
else if (argc > 2 || Jim_GetEnum(interp, argv[1], options, &option, NULL, JIM_ERRMSG | JIM_ENUM_ABBREV) != JIM_OK) {
|
|
Jim_WrongNumArgs(interp, 1, argv, "?idletasks?");
|
|
return JIM_ERR;
|
|
}
|
|
|
|
eventLoop->suppress_bgerror = 0;
|
|
|
|
while (Jim_ProcessEvents(interp, flags | JIM_DONT_WAIT) > 0) {
|
|
}
|
|
|
|
return JIM_OK;
|
|
}
|
|
|
|
static void JimAfterTimeHandler(Jim_Interp *interp, void *clientData)
|
|
{
|
|
Jim_Obj *objPtr = clientData;
|
|
|
|
Jim_EvalObjBackground(interp, objPtr);
|
|
}
|
|
|
|
static void JimAfterTimeEventFinalizer(Jim_Interp *interp, void *clientData)
|
|
{
|
|
Jim_Obj *objPtr = clientData;
|
|
|
|
Jim_DecrRefCount(interp, objPtr);
|
|
}
|
|
|
|
static int JimELAfterCommand(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
|
|
{
|
|
Jim_EventLoop *eventLoop = Jim_CmdPrivData(interp);
|
|
double ms = 0;
|
|
jim_wide id;
|
|
Jim_Obj *objPtr, *idObjPtr;
|
|
static const char * const options[] = {
|
|
"cancel", "info", "idle", NULL
|
|
};
|
|
enum
|
|
{ AFTER_CANCEL, AFTER_INFO, AFTER_IDLE, AFTER_RESTART, AFTER_EXPIRE, AFTER_CREATE };
|
|
int option = AFTER_CREATE;
|
|
|
|
if (argc < 2) {
|
|
Jim_WrongNumArgs(interp, 1, argv, "option ?arg ...?");
|
|
return JIM_ERR;
|
|
}
|
|
if (Jim_GetDouble(interp, argv[1], &ms) != JIM_OK) {
|
|
if (Jim_GetEnum(interp, argv[1], options, &option, "argument", JIM_ERRMSG) != JIM_OK) {
|
|
return JIM_ERR;
|
|
}
|
|
Jim_SetEmptyResult(interp);
|
|
}
|
|
else if (argc == 2) {
|
|
/* Simply a sleep */
|
|
usleep(ms * 1000);
|
|
return JIM_OK;
|
|
}
|
|
|
|
switch (option) {
|
|
case AFTER_IDLE:
|
|
if (argc < 3) {
|
|
Jim_WrongNumArgs(interp, 2, argv, "script ?script ...?");
|
|
return JIM_ERR;
|
|
}
|
|
/* fall through */
|
|
case AFTER_CREATE: {
|
|
Jim_Obj *scriptObj = Jim_ConcatObj(interp, argc - 2, argv + 2);
|
|
Jim_IncrRefCount(scriptObj);
|
|
id = Jim_CreateTimeHandler(interp, (jim_wide)(ms * 1000), JimAfterTimeHandler, scriptObj,
|
|
JimAfterTimeEventFinalizer);
|
|
objPtr = Jim_NewStringObj(interp, NULL, 0);
|
|
Jim_AppendString(interp, objPtr, "after#", -1);
|
|
idObjPtr = Jim_NewIntObj(interp, id);
|
|
Jim_IncrRefCount(idObjPtr);
|
|
Jim_AppendObj(interp, objPtr, idObjPtr);
|
|
Jim_DecrRefCount(interp, idObjPtr);
|
|
Jim_SetResult(interp, objPtr);
|
|
return JIM_OK;
|
|
}
|
|
case AFTER_CANCEL:
|
|
if (argc < 3) {
|
|
Jim_WrongNumArgs(interp, 2, argv, "id|command");
|
|
return JIM_ERR;
|
|
}
|
|
else {
|
|
jim_wide remain = 0;
|
|
|
|
id = JimParseAfterId(argv[2]);
|
|
if (id <= 0) {
|
|
/* Not an event id, so search by script */
|
|
Jim_Obj *scriptObj = Jim_ConcatObj(interp, argc - 2, argv + 2);
|
|
id = JimFindAfterByScript(eventLoop, scriptObj);
|
|
Jim_FreeNewObj(interp, scriptObj);
|
|
if (id <= 0) {
|
|
/* Not found */
|
|
break;
|
|
}
|
|
}
|
|
remain = Jim_DeleteTimeHandler(interp, id);
|
|
if (remain >= 0) {
|
|
Jim_SetResultInt(interp, remain);
|
|
}
|
|
}
|
|
break;
|
|
|
|
case AFTER_INFO:
|
|
if (argc == 2) {
|
|
Jim_TimeEvent *te = eventLoop->timeEventHead;
|
|
Jim_Obj *listObj = Jim_NewListObj(interp, NULL, 0);
|
|
char buf[30];
|
|
const char *fmt = "after#%" JIM_WIDE_MODIFIER;
|
|
|
|
while (te) {
|
|
snprintf(buf, sizeof(buf), fmt, te->id);
|
|
Jim_ListAppendElement(interp, listObj, Jim_NewStringObj(interp, buf, -1));
|
|
te = te->next;
|
|
}
|
|
Jim_SetResult(interp, listObj);
|
|
}
|
|
else if (argc == 3) {
|
|
id = JimParseAfterId(argv[2]);
|
|
if (id >= 0) {
|
|
Jim_TimeEvent *e = JimFindTimeHandlerById(eventLoop, id);
|
|
if (e && e->timeProc == JimAfterTimeHandler) {
|
|
Jim_Obj *listObj = Jim_NewListObj(interp, NULL, 0);
|
|
Jim_ListAppendElement(interp, listObj, e->clientData);
|
|
Jim_ListAppendElement(interp, listObj, Jim_NewStringObj(interp, e->initialus ? "timer" : "idle", -1));
|
|
Jim_SetResult(interp, listObj);
|
|
return JIM_OK;
|
|
}
|
|
}
|
|
Jim_SetResultFormatted(interp, "event \"%#s\" doesn't exist", argv[2]);
|
|
return JIM_ERR;
|
|
}
|
|
else {
|
|
Jim_WrongNumArgs(interp, 2, argv, "?id?");
|
|
return JIM_ERR;
|
|
}
|
|
break;
|
|
}
|
|
return JIM_OK;
|
|
}
|
|
|
|
int Jim_eventloopInit(Jim_Interp *interp)
|
|
{
|
|
Jim_EventLoop *eventLoop;
|
|
|
|
Jim_PackageProvideCheck(interp, "eventloop");
|
|
|
|
eventLoop = Jim_Alloc(sizeof(*eventLoop));
|
|
memset(eventLoop, 0, sizeof(*eventLoop));
|
|
|
|
Jim_SetAssocData(interp, "eventloop", JimELAssocDataDeleProc, eventLoop);
|
|
|
|
Jim_CreateCommand(interp, "vwait", JimELVwaitCommand, eventLoop, NULL);
|
|
Jim_CreateCommand(interp, "update", JimELUpdateCommand, eventLoop, NULL);
|
|
Jim_CreateCommand(interp, "after", JimELAfterCommand, eventLoop, NULL);
|
|
|
|
return JIM_OK;
|
|
}
|