--- /dev/null
+/* Jim - A small embeddable Tcl interpreter\r
+ *\r
+ * Copyright 2005 Salvatore Sanfilippo <antirez@invece.org>\r
+ * Copyright 2005 Clemens Hintze <c.hintze@gmx.net>\r
+ * Copyright 2005 patthoyts - Pat Thoyts <patthoyts@users.sf.net> \r
+ * Copyright 2008 oharboe - Øyvind Harboe - oyvind.harboe@zylin.com\r
+ * Copyright 2008 Andrew Lunn <andrew@lunn.ch>\r
+ * Copyright 2008 Duane Ellis <openocd@duaneellis.com>\r
+ * Copyright 2008 Uwe Klein <uklein@klein-messgeraete.de>\r
+ * \r
+ * The FreeBSD license\r
+ * \r
+ * Redistribution and use in source and binary forms, with or without\r
+ * modification, are permitted provided that the following conditions\r
+ * are met:\r
+ * \r
+ * 1. Redistributions of source code must retain the above copyright\r
+ * notice, this list of conditions and the following disclaimer.\r
+ * 2. Redistributions in binary form must reproduce the above\r
+ * copyright notice, this list of conditions and the following\r
+ * disclaimer in the documentation and/or other materials\r
+ * provided with the distribution.\r
+ * \r
+ * THIS SOFTWARE IS PROVIDED BY THE JIM TCL PROJECT ``AS IS'' AND ANY\r
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,\r
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A\r
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE\r
+ * JIM TCL PROJECT OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\r
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES\r
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS\r
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)\r
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,\r
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\r
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF\r
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.\r
+ * \r
+ * The views and conclusions contained in the software and documentation\r
+ * are those of the authors and should not be interpreted as representing\r
+ * official policies, either expressed or implied, of the Jim Tcl Project.\r
+ **/\r
+/* TODO:\r
+ *\r
+ * - to really use flags in Jim_ProcessEvents()\r
+ * - more complete [after] command with [after info] and other subcommands.\r
+ * - Win32 port\r
+ */\r
+\r
+#define JIM_EXTENSION\r
+#define __JIM_EVENTLOOP_CORE__\r
+#ifdef __ECOS\r
+#include <pkgconf/jimtcl.h>\r
+#endif\r
+#ifdef __ECOS\r
+#include <cyg/jimtcl/jim.h>\r
+#include <cyg/jimtcl/jim-eventloop.h>\r
+#else\r
+#include "jim.h"\r
+#include "jim-eventloop.h"\r
+#endif\r
+\r
+/* POSIX includes */\r
+#include <sys/time.h>\r
+#include <sys/types.h>\r
+#include <unistd.h>\r
+#include <sys/select.h>\r
+#include <errno.h>\r
+ extern int errno;\r
+/* --- */\r
+\r
+/* File event structure */\r
+typedef struct Jim_FileEvent {\r
+ void *handle;\r
+ int mask; /* one of JIM_EVENT_(READABLE|WRITABLE|EXCEPTION) */\r
+ Jim_FileProc *fileProc;\r
+ Jim_EventFinalizerProc *finalizerProc;\r
+ void *clientData;\r
+ struct Jim_FileEvent *next;\r
+} Jim_FileEvent;\r
+\r
+/* Time event structure */\r
+typedef struct Jim_TimeEvent {\r
+ jim_wide id; /* time event identifier. */\r
+ int mode; /* restart, repetitive .. UK */\r
+ long initialms; /* initial relativ timer value UK */\r
+ long when_sec; /* seconds */\r
+ long when_ms; /* milliseconds */\r
+ Jim_TimeProc *timeProc;\r
+ Jim_EventFinalizerProc *finalizerProc;\r
+ void *clientData;\r
+ struct Jim_TimeEvent *next;\r
+} Jim_TimeEvent;\r
+\r
+/* Per-interp stucture containing the state of the event loop */\r
+typedef struct Jim_EventLoop {\r
+ jim_wide timeEventNextId;\r
+ Jim_FileEvent *fileEventHead;\r
+ Jim_TimeEvent *timeEventHead;\r
+} Jim_EventLoop;\r
+\r
+void Jim_CreateFileHandler(Jim_Interp *interp, void *handle, int mask,\r
+ Jim_FileProc *proc, void *clientData,\r
+ Jim_EventFinalizerProc *finalizerProc)\r
+{\r
+ Jim_FileEvent *fe;\r
+ Jim_EventLoop *eventLoop = Jim_GetAssocData(interp, "eventloop");\r
+\r
+ // fprintf(stderr,"rein\n");\r
+ fe = Jim_Alloc(sizeof(*fe));\r
+ fe->handle = handle;\r
+ fe->mask = mask;\r
+ fe->fileProc = proc;\r
+ fe->finalizerProc = finalizerProc;\r
+ fe->clientData = clientData;\r
+ fe->next = eventLoop->fileEventHead;\r
+ eventLoop->fileEventHead = fe;\r
+ // fprintf(stderr,"raus\n");\r
+}\r
+\r
+void Jim_DeleteFileHandler(Jim_Interp *interp, void *handle)\r
+{\r
+ Jim_FileEvent *fe, *prev = NULL;\r
+ Jim_EventLoop *eventLoop = Jim_GetAssocData(interp, "eventloop");\r
+\r
+ fe = eventLoop->fileEventHead;\r
+ while(fe) {\r
+ if (fe->handle == handle) {\r
+ if (prev == NULL)\r
+ eventLoop->fileEventHead = fe->next;\r
+ else\r
+ prev->next = fe->next;\r
+ if (fe->finalizerProc)\r
+ fe->finalizerProc(interp, fe->clientData);\r
+ Jim_Free(fe);\r
+ return;\r
+ }\r
+ prev = fe;\r
+ fe = fe->next;\r
+ }\r
+}\r
+\r
+// The same for signals.\r
+void Jim_CreateSignalHandler(Jim_Interp *interp, int signum, \r
+ Jim_FileProc *proc, void *clientData,\r
+ Jim_EventFinalizerProc *finalizerProc)\r
+{\r
+}\r
+void Jim_DeleteSignalHandler(Jim_Interp *interp, int signum) \r
+{\r
+}\r
+\r
+/* That's another part of this extension that needs to be ported\r
+ * to WIN32. */\r
+static void JimGetTime(long *seconds, long *milliseconds)\r
+{\r
+ struct timeval tv;\r
+\r
+ gettimeofday(&tv, NULL);\r
+ *seconds = tv.tv_sec;\r
+ *milliseconds = tv.tv_usec/1000;\r
+}\r
+\r
+jim_wide Jim_CreateTimeHandler(Jim_Interp *interp, jim_wide milliseconds,\r
+ Jim_TimeProc *proc, void *clientData,\r
+ Jim_EventFinalizerProc *finalizerProc)\r
+{\r
+ Jim_EventLoop *eventLoop = Jim_GetAssocData(interp, "eventloop");\r
+ jim_wide id = eventLoop->timeEventNextId++;\r
+ Jim_TimeEvent *te;\r
+ long cur_sec, cur_ms;\r
+\r
+ JimGetTime(&cur_sec, &cur_ms);\r
+\r
+ te = Jim_Alloc(sizeof(*te));\r
+ te->id = id;\r
+ te->mode = 0;\r
+ te->initialms = milliseconds;\r
+ te->when_sec = cur_sec + milliseconds/1000;\r
+ te->when_ms = cur_ms + milliseconds%1000;\r
+ if (te->when_ms >= 1000) {\r
+ te->when_sec ++;\r
+ te->when_ms -= 1000;\r
+ }\r
+ te->timeProc = proc;\r
+ te->finalizerProc = finalizerProc;\r
+ te->clientData = clientData;\r
+ te->next = eventLoop->timeEventHead;\r
+ eventLoop->timeEventHead = te;\r
+ return id;\r
+}\r
+\r
+jim_wide Jim_DeleteTimeHandler(Jim_Interp *interp, jim_wide id)\r
+{\r
+ Jim_TimeEvent *te, *prev = NULL;\r
+ Jim_EventLoop *eventLoop = Jim_GetAssocData(interp, "eventloop");\r
+ long cur_sec, cur_ms;\r
+ jim_wide remain ;\r
+\r
+ JimGetTime(&cur_sec, &cur_ms);\r
+\r
+ te = eventLoop->timeEventHead;\r
+ if (id >= eventLoop->timeEventNextId) \r
+ return -2; /* wrong event ID */\r
+ while(te) {\r
+ if (te->id == id) {\r
+ remain = (te->when_sec - cur_sec) * 1000;\r
+ remain += (te->when_ms - cur_ms) ;\r
+ remain = (remain < 0) ? 0 : remain ;\r
+\r
+ if (prev == NULL)\r
+ eventLoop->timeEventHead = te->next;\r
+ else\r
+ prev->next = te->next;\r
+ if (te->finalizerProc)\r
+ te->finalizerProc(interp, te->clientData);\r
+ Jim_Free(te);\r
+ return remain;\r
+ }\r
+ prev = te;\r
+ te = te->next;\r
+ }\r
+ return -1; /* NO event with the specified ID found */\r
+}\r
+\r
+/* Search the first timer to fire.\r
+ * This operation is useful to know how many time the select can be\r
+ * put in sleep without to delay any event.\r
+ * If there are no timers NULL is returned. */\r
+static Jim_TimeEvent *JimSearchNearestTimer(Jim_EventLoop *eventLoop)\r
+{\r
+ Jim_TimeEvent *te = eventLoop->timeEventHead;\r
+ Jim_TimeEvent *nearest = NULL;\r
+\r
+ while(te) {\r
+ if (!nearest || te->when_sec < nearest->when_sec ||\r
+ (te->when_sec == nearest->when_sec &&\r
+ te->when_ms < nearest->when_ms))\r
+ nearest = te;\r
+ te = te->next;\r
+ }\r
+ return nearest;\r
+}\r
+\r
+/* Process every pending time event, then every pending file event\r
+ * (that may be registered by time event callbacks just processed).\r
+ * Without special flags the function sleeps until some file event\r
+ * fires, or when the next time event occurrs (if any).\r
+ *\r
+ * If flags is 0, the function does nothing and returns.\r
+ * if flags has JIM_ALL_EVENTS set, all the kind of events are processed.\r
+ * if flags has JIM_FILE_EVENTS set, file events are processed.\r
+ * if flags has JIM_TIME_EVENTS set, time events are processed.\r
+ * if flags has JIM_DONT_WAIT set the function returns ASAP until all\r
+ * the events that's possible to process without to wait are processed.\r
+ *\r
+ * The function returns the number of events processed. */\r
+int Jim_ProcessEvents(Jim_Interp *interp, int flags)\r
+{\r
+ int maxfd = 0, numfd = 0, processed = 0;\r
+ fd_set rfds, wfds, efds;\r
+ Jim_EventLoop *eventLoop = Jim_GetAssocData(interp, "eventloop");\r
+ Jim_FileEvent *fe = eventLoop->fileEventHead;\r
+ Jim_TimeEvent *te;\r
+ jim_wide maxId;\r
+ JIM_NOTUSED(flags);\r
+\r
+ FD_ZERO(&rfds);\r
+ FD_ZERO(&wfds);\r
+ FD_ZERO(&efds);\r
+\r
+ /* Check file events */\r
+ while (fe != NULL) {\r
+ int fd = fileno(fe->handle);\r
+\r
+ if (fe->mask & JIM_EVENT_READABLE) \r
+ FD_SET(fd, &rfds);\r
+ if (fe->mask & JIM_EVENT_WRITABLE) FD_SET(fd, &wfds);\r
+ if (fe->mask & JIM_EVENT_EXCEPTION) FD_SET(fd, &efds);\r
+ if (maxfd < fd) maxfd = fd;\r
+ numfd++;\r
+ fe = fe->next;\r
+ }\r
+ /* Note that we want call select() even if there are no\r
+ * file events to process as long as we want to process time\r
+ * events, in order to sleep until the next time event is ready\r
+ * to fire. */\r
+ if (numfd || ((flags & JIM_TIME_EVENTS) && !(flags & JIM_DONT_WAIT))) {\r
+ int retval;\r
+ Jim_TimeEvent *shortest;\r
+ struct timeval tv, *tvp;\r
+ jim_wide dt;\r
+\r
+ shortest = JimSearchNearestTimer(eventLoop);\r
+ if (shortest) {\r
+ long now_sec, now_ms;\r
+\r
+ /* Calculate the time missing for the nearest\r
+ * timer to fire. */\r
+ JimGetTime(&now_sec, &now_ms);\r
+ tvp = &tv;\r
+ dt = 1000 * (shortest->when_sec - now_sec);\r
+ dt += ( shortest->when_ms - now_ms);\r
+ if (dt < 0) {\r
+ dt = 1;\r
+ }\r
+ tvp->tv_sec = dt / 1000;\r
+ tvp->tv_usec = dt % 1000;\r
+ // fprintf(stderr,"Next %d.% 8d\n",(int)tvp->tv_sec,(int)tvp->tv_usec);\r
+ } else {\r
+ tvp = NULL; /* wait forever */\r
+ // fprintf(stderr,"No Event\n");\r
+ }\r
+\r
+ retval = select(maxfd+1, &rfds, &wfds, &efds, tvp);\r
+ if (retval < 0) {\r
+ switch (errno) {\r
+ case EINTR: fprintf(stderr,"select EINTR\n"); break;\r
+ case EINVAL: fprintf(stderr,"select EINVAL\n"); break;\r
+ case ENOMEM: fprintf(stderr,"select ENOMEM\n"); break;\r
+ }\r
+ } else if (retval > 0) {\r
+ fe = eventLoop->fileEventHead;\r
+ while(fe != NULL) {\r
+ int fd = fileno(fe->handle);\r
+\r
+ // fprintf(stderr,"fd: %d mask: %02x \n",fd,fe->mask);\r
+\r
+ if ((fe->mask & JIM_EVENT_READABLE && FD_ISSET(fd, &rfds)) ||\r
+ (fe->mask & JIM_EVENT_WRITABLE && FD_ISSET(fd, &wfds)) ||\r
+ (fe->mask & JIM_EVENT_EXCEPTION && FD_ISSET(fd, &efds)))\r
+ {\r
+ int mask = 0;\r
+\r
+ if (fe->mask & JIM_EVENT_READABLE && FD_ISSET(fd, &rfds)) {\r
+ mask |= JIM_EVENT_READABLE;\r
+ if ((fe->mask & JIM_EVENT_FEOF) && feof((FILE *)fe->handle))\r
+ mask |= JIM_EVENT_FEOF;\r
+ }\r
+ if (fe->mask & JIM_EVENT_WRITABLE && FD_ISSET(fd, &wfds))\r
+ mask |= JIM_EVENT_WRITABLE;\r
+ if (fe->mask & JIM_EVENT_EXCEPTION && FD_ISSET(fd, &efds))\r
+ mask |= JIM_EVENT_EXCEPTION;\r
+ if (fe->fileProc(interp, fe->clientData, mask) == JIM_ERR) {\r
+ /* Remove the element on handler error */\r
+ Jim_DeleteFileHandler(interp, fe->handle);\r
+ }\r
+ processed++;\r
+ /* After an event is processed our file event list\r
+ * may no longer be the same, so what we do\r
+ * is to clear the bit for this file descriptor and\r
+ * restart again from the head. */\r
+ fe = eventLoop->fileEventHead;\r
+ FD_CLR(fd, &rfds);\r
+ FD_CLR(fd, &wfds);\r
+ FD_CLR(fd, &efds);\r
+ } else {\r
+ fe = fe->next;\r
+ }\r
+ }\r
+ }\r
+ }\r
+ /* Check time events */\r
+ te = eventLoop->timeEventHead;\r
+ maxId = eventLoop->timeEventNextId-1;\r
+ while(te) {\r
+ long now_sec, now_ms;\r
+ jim_wide id;\r
+\r
+ if (te->id > maxId) {\r
+ te = te->next;\r
+ continue;\r
+ }\r
+ JimGetTime(&now_sec, &now_ms);\r
+ if (now_sec > te->when_sec ||\r
+ (now_sec == te->when_sec && now_ms >= te->when_ms))\r
+ {\r
+ id = te->id;\r
+ te->timeProc(interp, te->clientData);\r
+ /* After an event is processed our time event list may\r
+ * no longer be the same, so we restart from head.\r
+ * Still we make sure to don't process events registered\r
+ * by event handlers itself in order to don't loop forever\r
+ * even in case an [after 0] that continuously register\r
+ * itself. To do so we saved the max ID we want to handle. */\r
+ Jim_DeleteTimeHandler(interp, id);\r
+ te = eventLoop->timeEventHead;\r
+ } else {\r
+ te = te->next;\r
+ }\r
+ }\r
+\r
+ return processed;\r
+}\r
+/* ---------------------------------------------------------------------- */\r
+\r
+void JimELAssocDataDeleProc(Jim_Interp *interp, void *data)\r
+{\r
+ void *next;\r
+ Jim_FileEvent *fe;\r
+ Jim_TimeEvent *te;\r
+ Jim_EventLoop *eventLoop = data;\r
+\r
+ fe = eventLoop->fileEventHead;\r
+ while(fe) {\r
+ next = fe->next;\r
+ if (fe->finalizerProc)\r
+ fe->finalizerProc(interp, fe->clientData);\r
+ Jim_Free(fe);\r
+ fe = next;\r
+ }\r
+\r
+ te = eventLoop->timeEventHead;\r
+ while(te) {\r
+ next = te->next;\r
+ if (te->finalizerProc)\r
+ te->finalizerProc(interp, te->clientData);\r
+ Jim_Free(te);\r
+ te = next;\r
+ }\r
+ Jim_Free(data);\r
+}\r
+\r
+static int JimELVwaitCommand(Jim_Interp *interp, int argc, \r
+ Jim_Obj *const *argv)\r
+{\r
+ Jim_Obj *oldValue;\r
+\r
+ if (argc != 2) {\r
+ Jim_WrongNumArgs(interp, 1, argv, "name");\r
+ return JIM_ERR;\r
+ }\r
+ oldValue = Jim_GetGlobalVariable(interp, argv[1], JIM_NONE);\r
+ if (oldValue) Jim_IncrRefCount(oldValue);\r
+ while (1) {\r
+ Jim_Obj *currValue;\r
+\r
+ Jim_ProcessEvents(interp, JIM_ALL_EVENTS);\r
+ currValue = Jim_GetGlobalVariable(interp, argv[1], JIM_NONE);\r
+ /* Stop the loop if the vwait-ed variable changed value,\r
+ * or if was unset and now is set (or the contrary). */\r
+ if ((oldValue && !currValue) ||\r
+ (!oldValue && currValue) ||\r
+ (oldValue && currValue &&\r
+ !Jim_StringEqObj(oldValue, currValue, JIM_CASESENS)))\r
+ break;\r
+ }\r
+ if (oldValue) Jim_DecrRefCount(interp, oldValue);\r
+ return JIM_OK;\r
+}\r
+\r
+void JimAfterTimeHandler(Jim_Interp *interp, void *clientData)\r
+{\r
+ Jim_Obj *objPtr = clientData;\r
+\r
+ Jim_EvalObjBackground(interp, objPtr);\r
+}\r
+\r
+void JimAfterTimeEventFinalizer(Jim_Interp *interp, void *clientData)\r
+{\r
+ Jim_Obj *objPtr = clientData;\r
+\r
+ Jim_DecrRefCount(interp, objPtr);\r
+}\r
+\r
+static int JimELAfterCommand(Jim_Interp *interp, int argc, \r
+ Jim_Obj *const *argv)\r
+{\r
+ jim_wide ms, id;\r
+ Jim_Obj *objPtr, *idObjPtr;\r
+ const char *options[] = {\r
+ "info", "cancel", "restart", "expire", NULL\r
+ };\r
+ enum {INFO, CANCEL, RESTART, EXPIRE, CREATE };\r
+ int option = CREATE ;\r
+\r
+ if (argc < 3) {\r
+ Jim_WrongNumArgs(interp, 1, argv, "<after milliseconds> script");\r
+ return JIM_ERR;\r
+ }\r
+ if (Jim_GetWide(interp, argv[1], &ms) != JIM_OK)\r
+ if (Jim_GetEnum(interp, argv[1], options, &option, "after options",\r
+ JIM_ERRMSG) != JIM_OK)\r
+ return JIM_ERR;\r
+ switch (option) {\r
+ case CREATE:\r
+ Jim_IncrRefCount(argv[2]);\r
+ id = Jim_CreateTimeHandler(interp, ms, JimAfterTimeHandler, argv[2],\r
+ JimAfterTimeEventFinalizer);\r
+ objPtr = Jim_NewStringObj(interp, NULL, 0);\r
+ Jim_AppendString(interp, objPtr, "after#", -1);\r
+ idObjPtr = Jim_NewIntObj(interp, id);\r
+ Jim_IncrRefCount(idObjPtr);\r
+ Jim_AppendObj(interp, objPtr, idObjPtr);\r
+ Jim_DecrRefCount(interp, idObjPtr);\r
+ Jim_SetResult(interp, objPtr);\r
+ return JIM_OK;\r
+ case CANCEL:\r
+ {\r
+ int tlen ;\r
+ jim_wide remain = 0;\r
+ const char *tok = Jim_GetString(argv[2], &tlen);\r
+ if ( sscanf(tok,"after#%lld",&id) == 1) {\r
+ remain = Jim_DeleteTimeHandler(interp, id);\r
+ if (remain > -2) {\r
+ Jim_SetResult(interp, Jim_NewIntObj(interp, remain));\r
+ return JIM_OK;\r
+ }\r
+ }\r
+ Jim_SetResultString(interp, "invalid event" , -1);\r
+ return JIM_ERR;\r
+ }\r
+ default:\r
+ fprintf(stderr,"unserviced option to after %d\n",option);\r
+ } \r
+ return JIM_OK;\r
+}\r
+\r
+/* This extension is not dynamically loaded, instead it's linked statically,\r
+ which is why we shouldn't use the unspecific 'Jim_OnLoad' name */\r
+#define Jim_OnLoad Jim_EventLoopOnLoad\r
+\r
+int Jim_OnLoad(Jim_Interp *interp)\r
+{\r
+ Jim_EventLoop *eventLoop;\r
+\r
+ Jim_InitExtension(interp);\r
+ if (Jim_PackageProvide(interp, "eventloop", "1.0", JIM_ERRMSG) != JIM_OK)\r
+ return JIM_ERR;\r
+\r
+ eventLoop = Jim_Alloc(sizeof(*eventLoop));\r
+ eventLoop->fileEventHead = NULL;\r
+ eventLoop->timeEventHead = NULL;\r
+ eventLoop->timeEventNextId = 1;\r
+ Jim_SetAssocData(interp, "eventloop", JimELAssocDataDeleProc, eventLoop);\r
+\r
+ Jim_CreateCommand(interp, "vwait", JimELVwaitCommand, NULL, NULL);\r
+ Jim_CreateCommand(interp, "after", JimELAfterCommand, NULL, NULL);\r
+\r
+ /* Export events API */\r
+ Jim_RegisterApi(interp, "Jim_CreateFileHandler", Jim_CreateFileHandler);\r
+ Jim_RegisterApi(interp, "Jim_DeleteFileHandler", Jim_DeleteFileHandler);\r
+ Jim_RegisterApi(interp, "Jim_CreateTimeHandler", Jim_CreateTimeHandler);\r
+ Jim_RegisterApi(interp, "Jim_DeleteTimeHandler", Jim_DeleteTimeHandler);\r
+ Jim_RegisterApi(interp, "Jim_ProcessEvents", Jim_ProcessEvents);\r
+ return JIM_OK;\r
+}\r
--- /dev/null
+/* Jim - A small embeddable Tcl interpreter\r
+ *\r
+ * Copyright 2005 Salvatore Sanfilippo <antirez@invece.org>\r
+ * Copyright 2005 Clemens Hintze <c.hintze@gmx.net>\r
+ * Copyright 2005 patthoyts - Pat Thoyts <patthoyts@users.sf.net> \r
+ * Copyright 2008 oharboe - Øyvind Harboe - oyvind.harboe@zylin.com\r
+ * Copyright 2008 Andrew Lunn <andrew@lunn.ch>\r
+ * Copyright 2008 Duane Ellis <openocd@duaneellis.com>\r
+ * Copyright 2008 Uwe Klein <uklein@klein-messgeraete.de>\r
+ * \r
+ * The FreeBSD license\r
+ * \r
+ * Redistribution and use in source and binary forms, with or without\r
+ * modification, are permitted provided that the following conditions\r
+ * are met:\r
+ * \r
+ * 1. Redistributions of source code must retain the above copyright\r
+ * notice, this list of conditions and the following disclaimer.\r
+ * 2. Redistributions in binary form must reproduce the above\r
+ * copyright notice, this list of conditions and the following\r
+ * disclaimer in the documentation and/or other materials\r
+ * provided with the distribution.\r
+ * \r
+ * THIS SOFTWARE IS PROVIDED BY THE JIM TCL PROJECT ``AS IS'' AND ANY\r
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,\r
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A\r
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE\r
+ * JIM TCL PROJECT OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\r
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES\r
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS\r
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)\r
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,\r
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\r
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF\r
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.\r
+ * \r
+ * The views and conclusions contained in the software and documentation\r
+ * are those of the authors and should not be interpreted as representing\r
+ * official policies, either expressed or implied, of the Jim Tcl Project.\r
+ **/\r
+/* ------ USAGE -------\r
+ *\r
+ * In order to use this file from other extensions include it in every\r
+ * file where you need to call the eventloop API, also in the init\r
+ * function of your extension call Jim_ImportEventloopAPI(interp)\r
+ * after the Jim_InitExtension() call.\r
+ *\r
+ * See the UDP extension as example.\r
+ */\r
+\r
+\r
+#ifndef __JIM_EVENTLOOP_H__\r
+#define __JIM_EVENTLOOP_H__\r
+\r
+typedef int Jim_FileProc(Jim_Interp *interp, void *clientData, int mask);\r
+typedef int Jim_SignalProc(Jim_Interp *interp, void *clientData, void *msg);\r
+typedef void Jim_TimeProc(Jim_Interp *interp, void *clientData);\r
+typedef void Jim_EventFinalizerProc(Jim_Interp *interp, void *clientData);\r
+\r
+/* File event structure */\r
+#define JIM_EVENT_READABLE 1\r
+#define JIM_EVENT_WRITABLE 2\r
+#define JIM_EVENT_EXCEPTION 4\r
+#define JIM_EVENT_FEOF 8\r
+\r
+#define JIM_API(x) x\r
+#define JIM_STATIC \r
+\r
+/* --- POSIX version of Jim_ProcessEvents, for now the only available --- */\r
+#define JIM_FILE_EVENTS 1\r
+#define JIM_TIME_EVENTS 2\r
+#define JIM_ALL_EVENTS (JIM_FILE_EVENTS|JIM_TIME_EVENTS)\r
+#define JIM_DONT_WAIT 4\r
+\r
+JIM_STATIC void JIM_API(Jim_CreateFileHandler) (Jim_Interp *interp,\r
+ void *handle, int mask,\r
+ Jim_FileProc *proc, void *clientData,\r
+ Jim_EventFinalizerProc *finalizerProc);\r
+JIM_STATIC void JIM_API(Jim_DeleteFileHandler) (Jim_Interp *interp,\r
+ void *handle);\r
+JIM_STATIC jim_wide JIM_API(Jim_CreateTimeHandler) (Jim_Interp *interp,\r
+ jim_wide milliseconds,\r
+ Jim_TimeProc *proc, void *clientData,\r
+ Jim_EventFinalizerProc *finalizerProc);\r
+JIM_STATIC jim_wide JIM_API(Jim_DeleteTimeHandler) (Jim_Interp *interp, jim_wide id);\r
+JIM_STATIC int JIM_API(Jim_ProcessEvents) (Jim_Interp *interp, int flags);\r
+\r
+#undef JIM_STATIC\r
+#undef JIM_API\r
+\r
+#ifndef __JIM_EVENTLOOP_CORE__\r
+\r
+#define JIM_GET_API(name) \\r
+ Jim_GetApi(interp, "Jim_" #name, ((void *)&Jim_ ## name))\r
+\r
+#if defined(JIM_EXTENSION) || defined(JIM_EMBEDDED)\r
+/* This must be included "inline" inside the extension */\r
+static void Jim_ImportEventloopAPI(Jim_Interp *interp)\r
+{\r
+ JIM_GET_API(CreateFileHandler);\r
+ JIM_GET_API(DeleteFileHandler);\r
+ JIM_GET_API(CreateTimeHandler);\r
+ JIM_GET_API(DeleteTimeHandler);\r
+ JIM_GET_API(ProcessEvents);\r
+}\r
+#endif /* defined JIM_EXTENSION || defined JIM_EMBEDDED */\r
+#undef JIM_GET_API\r
+#endif /* __JIM_EVENTLOOP_CORE__ */\r
+\r
+#endif /* __JIM_EVENTLOOP_H__ */\r
projects / openocd / commitdiff