1 files changed, 429 insertions, 0 deletions

diff --git a/test/src/test-c-machine.cpp b/test/src/test-c-machine.cpp
new file mode 100644
index 0000000..a9e5ecb
--- /dev/null
+++ b/test/src/test-c-machine.cpp
@@ -0,0 +1,429 @@
+#include <string.h>
+#include <stdlib.h> // malloc
+#include <assert.h> // assert
+#include <stdio.h>  // printf
+#include <sstream> // stringstream
+#include <deque> // deque
+#include <boost/algorithm/string.hpp> // trim
+
+#define SCXML_VERBOSE 1
+
+#ifndef AUTOINCLUDE_TEST
+#include "test-c-machine.machine.c"
+#endif
+
+#include "uscxml/Convenience.h"
+//#include "uscxml/DOMUtils.h"
+#include "uscxml/Factory.h"
+#include "uscxml/InterpreterInfo.h"
+#include "uscxml/UUID.h"
+
+#include "uscxml/concurrency/DelayedEventQueue.h"
+#include "uscxml/concurrency/tinythread.h"
+
+#define USER_DATA(ctx) ((GenCInterpreterInfo*)(((scxml_ctx*)ctx)->user_data))
+
+using namespace uscxml;
+
+typedef struct scxml_foreach_info scxml_foreach_info;
+struct scxml_foreach_info {
+    size_t iterations;
+    size_t currIteration;
+};
+
+class GenCInterpreterInfo : public InterpreterInfo {
+public:
+    NameSpaceInfo getNameSpaceInfo() const {
+        return nsInfo;
+    }
+    const std::string& getName() {
+        return name;
+    }
+    const std::string& getSessionId() {
+        return sessionId;
+    }
+    const std::map<std::string, IOProcessor>& getIOProcessors() {
+        return ioProcs;
+    }
+    bool isInState(const std::string& stateId) {
+        for (int i = 0 ; i < SCXML_NUMBER_STATES; i++) {
+            if (scxml_states[i].name != NULL && IS_SET(i, ctx->config) && stateId == scxml_states[i].name)
+                return true;
+        }
+        return false;
+    }
+    Arabica::DOM::Document<std::string> getDocument() const {
+        return document;
+    }
+    const std::map<std::string, Invoker>& getInvokers() {
+        return invokers;
+    }
+    
+    NameSpaceInfo nsInfo;
+    std::string name;
+    std::string sessionId;
+    std::map<std::string, IOProcessor> ioProcs;
+    std::map<std::string, Invoker> invokers;
+    Arabica::DOM::Document<std::string> document;
+    scxml_ctx* ctx;
+    boost::shared_ptr<DataModelImpl> datamodel;
+    
+    std::map<const scxml_elem_foreach*, scxml_foreach_info*> foreachInfo;
+    std::deque<Event*> iq;
+    std::deque<Event*> eq;
+    
+    DelayedEventQueue delayQueue;
+    std::map<std::string, SendRequest*> sendIds;
+
+    tthread::condition_variable monitor;
+    tthread::mutex mutex;
+};
+
+int matches(const char* desc, const char* event) {
+    const char* dPtr = desc;
+    const char* ePtr = event;
+    while(true) {
+
+        // next event descriptor
+        if (*dPtr == ' ') {
+            dPtr++;
+            ePtr = event;
+            continue;
+        }
+        
+        // descriptor is done, return match
+        if (*dPtr == 0 || *dPtr == '*')
+            return true;
+        
+        // descriptor differs from event name
+        if (*dPtr != *ePtr)
+            return false;
+
+        // move both pointers one character
+        dPtr++;
+        ePtr++;
+    }
+}
+
+int exec_content_raise(const scxml_ctx* ctx, const char* event) {
+    Event* e = new Event();
+    e->name = strdup(event);
+    printf("Raising Internal Event: %s\n", e->name.c_str());
+    USER_DATA(ctx)->iq.push_back(e);
+    return SCXML_ERR_OK;
+}
+
+int is_true(const scxml_ctx* ctx, const char* expr) {
+    try {
+        return USER_DATA(ctx)->datamodel->evalAsBool(expr);
+    } catch (Event e) {
+        exec_content_raise(ctx, e.name.c_str());
+    }
+    return false;
+}
+
+int is_enabled(const scxml_ctx* ctx, const scxml_transition* t, const void* e) {
+    Event* event = (Event*)e;
+    if (event == NULL) {
+        if (t->event == NULL) {
+            // spontaneous transition, null event
+            if (t->condition != NULL)
+                return is_true(ctx, t->condition);
+            return true;
+        } else {
+            // spontaneous transition, but real event
+            return false;
+        }
+    }
+
+    // real transition, real event
+    if (matches(t->event, event->name.c_str())) {
+        if (t->condition != NULL)
+            return is_true(ctx, t->condition);
+        return true;
+    }
+    return false;
+}
+
+int raise_done_event(const scxml_ctx* ctx, const scxml_state* state) {
+    std::string doneName = "done.state.";
+    exec_content_raise(ctx, (doneName + state->name).c_str());
+    return SCXML_ERR_OK;
+}
+
+void delayedSend(void* ctx, std::string eventName) {
+    tthread::lock_guard<tthread::mutex> lock(USER_DATA(ctx)->mutex);
+
+    SendRequest* e = USER_DATA(ctx)->sendIds[eventName];
+    if (e->target == "#_internal") {
+        printf("Pushing Internal Event: %s\n", e->name.c_str());
+        USER_DATA(ctx)->iq.push_back(e);
+    } else {
+        printf("Pushing External Event: %s\n", e->name.c_str());
+        USER_DATA(ctx)->eq.push_back(e);
+    }
+    USER_DATA(ctx)->monitor.notify_all();
+}
+
+int exec_content_cancel(const scxml_ctx* ctx, const char* sendid, const char* sendidexpr) {
+    std::string eventId;
+    if (sendid != NULL) {
+        eventId = sendid;
+    } else if (sendidexpr != NULL) {
+        eventId = USER_DATA(ctx)->datamodel->evalAsString(sendidexpr);
+    }
+    
+    if (eventId.length() > 0) {
+        USER_DATA(ctx)->delayQueue.cancelEvent(eventId);
+    } else {
+        exec_content_raise(ctx, "error.execution");
+        return SCXML_ERR_EXEC_CONTENT;
+    }
+    return SCXML_ERR_OK;
+}
+
+int exec_content_send(const scxml_ctx* ctx, const scxml_elem_send* send) {
+    SendRequest* e = new SendRequest();
+    
+    std::string target;
+    if (send->target != NULL) {
+        e->target = send->target;
+    } else if (send->targetexpr != NULL) {
+        e->target = USER_DATA(ctx)->datamodel->evalAsString(send->targetexpr);
+    }
+    
+    if (e->target.size() > 0 && (e->target[0] != '#' || e->target[1] != '_')) {
+        delete e;
+        exec_content_raise(ctx, "error.execution");
+        return SCXML_ERR_INVALID_TARGET;
+    }
+    
+    if (send->type != NULL) {
+        e->type = send->type;
+    } else if (send->typeexpr != NULL) {
+        e->type = USER_DATA(ctx)->datamodel->evalAsString(send->typeexpr);
+    } else {
+        e->type = "http://www.w3.org/TR/scxml/#SCXMLEventProcessor";
+    }
+    
+    // only one somewhat supported
+    if (e->type != "http://www.w3.org/TR/scxml/#SCXMLEventProcessor") {
+        delete e;
+        exec_content_raise(ctx, "error.execution");
+        return SCXML_ERR_INVALID_TARGET;
+    }
+    
+    e->origintype = e->type;
+    
+    if (send->eventexpr != NULL) {
+        e->name = USER_DATA(ctx)->datamodel->evalAsString(send->eventexpr);
+    } else {
+        e->name = strdup(send->event);
+    }
+    
+    const scxml_elem_param* param = send->params;
+    while (param && ELEM_PARAM_IS_SET(param)) {
+        Data paramValue;
+        if (param->expr != NULL) {
+            paramValue = USER_DATA(ctx)->datamodel->getStringAsData(param->expr);
+        } else if(param->location) {
+            paramValue = USER_DATA(ctx)->datamodel->getStringAsData(param->location);
+        }
+        e->params.insert(std::make_pair(param->name, paramValue));
+        param++;
+    }
+    
+    if (send->content != NULL) {
+        e->data = Data(send->content, Data::VERBATIM);
+    }
+    
+    const char* sendid = NULL;
+    if (send->id != NULL) {
+        sendid = send->id;
+    } else {
+        sendid = strdup(UUID::getUUID().c_str());
+        if (send->idlocation != NULL)
+            USER_DATA(ctx)->datamodel->assign(send->idlocation, Data(sendid, Data::VERBATIM));
+    }
+    
+    size_t delayMs = 0;
+    std::string delay;
+    if (send->delayexpr != NULL) {
+        delay = USER_DATA(ctx)->datamodel->evalAsString(send->delayexpr);
+    } else if (send->delay != NULL) {
+        delay = send->delay;
+    }
+    if (delay.size() > 0) {
+        boost::trim(delay);
+        
+        NumAttr delayAttr(delay);
+        if (iequals(delayAttr.unit, "ms")) {
+            delayMs = strTo<uint32_t>(delayAttr.value);
+        } else if (iequals(delayAttr.unit, "s")) {
+            delayMs = strTo<double>(delayAttr.value) * 1000;
+        } else if (delayAttr.unit.length() == 0) { // unit less delay is interpreted as milliseconds
+            delayMs = strTo<uint32_t>(delayAttr.value);
+        } else {
+            std::cerr << "Cannot make sense of delay value " << delay << ": does not end in 's' or 'ms'";
+        }
+    }
+    
+    USER_DATA(ctx)->sendIds[sendid] = e;
+    if (delayMs > 0) {
+        USER_DATA(ctx)->delayQueue.addEvent(sendid, delayedSend, delayMs, (void*)ctx);
+    } else {
+        delayedSend((void*)ctx, sendid);
+    }
+    
+    return SCXML_ERR_OK;
+}
+
+int exec_content_init(const scxml_ctx* ctx, const scxml_elem_data* data) {
+    while(ELEM_DATA_IS_SET(data)) {
+        Data d;
+        if (data->expr != NULL) {
+            d = Data(data->expr, Data::INTERPRETED);
+        } else if (data->content != NULL) {
+            d = Data(data->content, Data::INTERPRETED);
+        } else {
+            d = Data("undefined", Data::INTERPRETED);
+        }
+        try {
+            USER_DATA(ctx)->datamodel->init(data->id, d);
+        } catch (Event e) {
+            exec_content_raise(ctx, e.name.c_str());
+        }
+        data++;
+    }
+    return SCXML_ERR_OK;
+}
+
+int exec_content_assign(const scxml_ctx* ctx, const char* location, const char* expr) {
+    try {
+        Data d(expr, Data::INTERPRETED);
+        USER_DATA(ctx)->datamodel->assign(location, d);
+    } catch (Event e) {
+        exec_content_raise(ctx, e.name.c_str());
+        return SCXML_ERR_EXEC_CONTENT;
+    }
+    return SCXML_ERR_OK;
+}
+
+int exec_content_foreach_init(const scxml_ctx* ctx, const scxml_elem_foreach* foreach) {
+    try {
+        scxml_foreach_info* feInfo = (scxml_foreach_info*)malloc(sizeof(scxml_foreach_info));
+        USER_DATA(ctx)->foreachInfo[foreach] = feInfo;
+        
+        feInfo->iterations = USER_DATA(ctx)->datamodel->getLength(foreach->array);
+        feInfo->currIteration = 0;
+    } catch (Event e) {
+        exec_content_raise(ctx, e.name.c_str());
+        return SCXML_ERR_EXEC_CONTENT;
+    }
+    return SCXML_ERR_OK;
+}
+
+int exec_content_foreach_next(const scxml_ctx* ctx, const scxml_elem_foreach* foreach) {
+    try {
+        scxml_foreach_info* feInfo = USER_DATA(ctx)->foreachInfo[foreach];
+        if (feInfo->currIteration < feInfo->iterations) {
+            USER_DATA(ctx)->datamodel->setForeach((foreach->item != NULL ? foreach->item : ""),
+                                                  (foreach->array != NULL ? foreach->array : ""),
+                                                  (foreach->index != NULL ? foreach->index : ""),
+                                                  feInfo->currIteration);
+            feInfo->currIteration++;
+            return SCXML_ERR_OK;
+        }
+    } catch (Event e) {
+        exec_content_raise(ctx, e.name.c_str());
+        free(USER_DATA(ctx)->foreachInfo[foreach]);
+        USER_DATA(ctx)->foreachInfo.erase(foreach);
+        return SCXML_ERR_EXEC_CONTENT;
+    }
+    return SCXML_ERR_FOREACH_DONE;
+}
+
+int exec_content_foreach_done(const scxml_ctx* ctx, const scxml_elem_foreach* foreach) {
+    free(USER_DATA(ctx)->foreachInfo[foreach]);
+    USER_DATA(ctx)->foreachInfo.erase(foreach);
+    return SCXML_ERR_OK;
+}
+
+int exec_content_log(const scxml_ctx* ctx, const char* label, const char* expr) {
+    if (label != 0) {
+        printf("%s: %s\n", label, expr);
+    } else {
+        printf("%s\n", USER_DATA(ctx)->datamodel->evalAsString(expr).c_str());
+    }
+    return SCXML_ERR_OK;
+}
+
+void* dequeue_external(const scxml_ctx* ctx) {
+    tthread::lock_guard<tthread::mutex> lock(USER_DATA(ctx)->mutex);
+    while (USER_DATA(ctx)->eq.size() == 0) {
+        USER_DATA(ctx)->monitor.wait(USER_DATA(ctx)->mutex);
+    }
+    Event* e = USER_DATA(ctx)->eq.front();
+    USER_DATA(ctx)->eq.pop_front();
+    USER_DATA(ctx)->datamodel->setEvent(*e);
+    printf("Popping External Event: %s\n", e->name.c_str());
+    return e;
+}
+
+void* dequeue_internal(const scxml_ctx* ctx) {
+    if (USER_DATA(ctx)->iq.size() == 0)
+        return NULL;
+    Event* e = USER_DATA(ctx)->iq.front();
+    USER_DATA(ctx)->iq.pop_front();
+    USER_DATA(ctx)->datamodel->setEvent(*e);
+    printf("Popping Internal Event: %s\n", e->name.c_str());
+    return e;
+}
+
+int main(int argc, char** argv) {
+    int err;
+    
+    // setup info object required for datamodel
+    GenCInterpreterInfo interpreterInfo;
+    interpreterInfo.name = "adsf";
+    interpreterInfo.sessionId = "rfwef";
+    interpreterInfo.datamodel = Factory::getInstance()->createDataModel("ecmascript", &interpreterInfo);
+    interpreterInfo.delayQueue.start();
+    
+    scxml_ctx ctx;
+    memset(&ctx, 0, sizeof(scxml_ctx));
+    interpreterInfo.ctx = &ctx;
+    
+    // set info object as user data
+    ctx.user_data = (void*)&interpreterInfo;
+    
+    // register callbacks with scxml context
+    ctx.is_enabled = &is_enabled;
+    ctx.is_true = &is_true;
+    ctx.raise_done_event = &raise_done_event;
+    
+    ctx.exec_content_send = &exec_content_send;
+    ctx.exec_content_raise = &exec_content_raise;
+    ctx.exec_content_cancel = &exec_content_cancel;
+    ctx.exec_content_log = &exec_content_log;
+    ctx.exec_content_assign = &exec_content_assign;
+    ctx.exec_content_foreach_init = &exec_content_foreach_init;
+    ctx.exec_content_foreach_next = &exec_content_foreach_next;
+    ctx.exec_content_foreach_done = &exec_content_foreach_done;
+    ctx.dequeue_external = &dequeue_external;
+    ctx.dequeue_internal = &dequeue_internal;
+    ctx.exec_content_init = &exec_content_init;
+    
+    while((err = scxml_step(&ctx)) == SCXML_ERR_OK);
+    assert(ctx.flags & SCXML_CTX_TOP_LEVEL_FINAL);
+    
+    size_t passIdx = 0;
+    for (int i = 0; i < SCXML_NUMBER_STATES; i++) {
+        if (scxml_states[i].name && strcmp(scxml_states[i].name, "pass") == 0) {
+            passIdx = i;
+            break;
+        }
+    }
+    assert(IS_SET(passIdx, ctx.config));
+    return EXIT_SUCCESS;
+}
\ No newline at end of file