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/**
* Copyright (C) ARM Limited 2013-2015. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include "EventsXML.h"
#include "CapturedXML.h"
#include "Logging.h"
#include "OlyUtility.h"
#include "SessionData.h"
class XMLList {
public:
XMLList(XMLList *const prev, mxml_node_t *const node) : mPrev(prev), mNode(node) {}
XMLList *getPrev() { return mPrev; }
mxml_node_t *getNode() const { return mNode; }
void setNode(mxml_node_t *const node) { mNode = node; }
static void free(XMLList *list) {
while (list != NULL) {
XMLList *prev = list->getPrev();
delete list;
list = prev;
}
}
private:
XMLList *const mPrev;
mxml_node_t *mNode;
// Intentionally unimplemented
XMLList(const XMLList &);
XMLList &operator=(const XMLList &);
};
mxml_node_t *EventsXML::getTree() {
#include "events_xml.h" // defines and initializes char events_xml[] and int events_xml_len
char path[PATH_MAX];
mxml_node_t *xml = NULL;
FILE *fl;
// Avoid unused variable warning
(void)events_xml_len;
// Load the provided or default events xml
if (gSessionData->mEventsXMLPath) {
strncpy(path, gSessionData->mEventsXMLPath, PATH_MAX);
fl = fopen(path, "r");
if (fl) {
xml = mxmlLoadFile(NULL, fl, MXML_NO_CALLBACK);
fclose(fl);
}
}
if (xml == NULL) {
logg->logMessage("Unable to locate events.xml, using default");
xml = mxmlLoadString(NULL, (const char *)events_xml, MXML_NO_CALLBACK);
}
// Append additional events XML
if (gSessionData->mEventsXMLAppend) {
fl = fopen(gSessionData->mEventsXMLAppend, "r");
if (fl == NULL) {
logg->logError("Unable to open additional events XML %s", gSessionData->mEventsXMLAppend);
handleException();
}
mxml_node_t *append = mxmlLoadFile(NULL, fl, MXML_NO_CALLBACK);
fclose(fl);
mxml_node_t *events = mxmlFindElement(xml, xml, "events", NULL, NULL, MXML_DESCEND);
if (!events) {
logg->logError("Unable to find <events> node in the events.xml, please ensure the first two lines of events XML starts with:\n"
"<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n"
"<events>");
handleException();
}
XMLList *categoryList = NULL;
XMLList *eventList = NULL;
{
// Make list of all categories in xml
mxml_node_t *node = xml;
while (true) {
node = mxmlFindElement(node, xml, "category", NULL, NULL, MXML_DESCEND);
if (node == NULL) {
break;
}
categoryList = new XMLList(categoryList, node);
}
// Make list of all events in xml
node = xml;
while (true) {
node = mxmlFindElement(node, xml, "event", NULL, NULL, MXML_DESCEND);
if (node == NULL) {
break;
}
eventList = new XMLList(eventList, node);
}
}
// Handle events
for (mxml_node_t *node = mxmlFindElement(append, append, "event", NULL, NULL, MXML_DESCEND),
*next = mxmlFindElement(node, append, "event", NULL, NULL, MXML_DESCEND);
node != NULL;
node = next, next = mxmlFindElement(node, append, "event", NULL, NULL, MXML_DESCEND)) {
const char *const category = mxmlElementGetAttr(mxmlGetParent(node), "name");
const char *const title = mxmlElementGetAttr(node, "title");
const char *const name = mxmlElementGetAttr(node, "name");
if (category == NULL || title == NULL || name == NULL) {
logg->logError("Not all event XML nodes have the required title and name and parent name attributes");
handleException();
}
// Replace any duplicate events
for (XMLList *event = eventList; event != NULL; event = event->getPrev()) {
const char *const category2 = mxmlElementGetAttr(mxmlGetParent(event->getNode()), "name");
const char *const title2 = mxmlElementGetAttr(event->getNode(), "title");
const char *const name2 = mxmlElementGetAttr(event->getNode(), "name");
if (category2 == NULL || title2 == NULL || name2 == NULL) {
logg->logError("Not all event XML nodes have the required title and name and parent name attributes");
handleException();
}
if (strcmp(category, category2) == 0 && strcmp(title, title2) == 0 && strcmp(name, name2) == 0) {
logg->logMessage("Replacing counter %s %s: %s", category, title, name);
mxml_node_t *parent = mxmlGetParent(event->getNode());
mxmlDelete(event->getNode());
mxmlAdd(parent, MXML_ADD_AFTER, MXML_ADD_TO_PARENT, node);
event->setNode(node);
break;
}
}
}
// Handle categories
for (mxml_node_t *node = strcmp(mxmlGetElement(append), "category") == 0 ? append : mxmlFindElement(append, append, "category", NULL, NULL, MXML_DESCEND),
*next = mxmlFindElement(node, append, "category", NULL, NULL, MXML_DESCEND);
node != NULL;
node = next, next = mxmlFindElement(node, append, "category", NULL, NULL, MXML_DESCEND)) {
// After replacing duplicate events, a category may be empty
if (mxmlGetFirstChild(node) == NULL) {
continue;
}
const char *const name = mxmlElementGetAttr(node, "name");
if (name == NULL) {
logg->logError("Not all event XML categories have the required name attribute");
handleException();
}
// Merge identically named categories
bool merged = false;
for (XMLList *category = categoryList; category != NULL; category = category->getPrev()) {
const char *const name2 = mxmlElementGetAttr(category->getNode(), "name");
if (name2 == NULL) {
logg->logError("Not all event XML categories have the required name attribute");
handleException();
}
if (strcmp(name, name2) == 0) {
logg->logMessage("Merging category %s", name);
while (true) {
mxml_node_t *child = mxmlGetFirstChild(node);
if (child == NULL) {
break;
}
mxmlAdd(category->getNode(), MXML_ADD_AFTER, mxmlGetLastChild(category->getNode()), child);
}
merged = true;
break;
}
}
if (merged) {
continue;
}
// Add new categories
logg->logMessage("Appending category %s", name);
mxmlAdd(events, MXML_ADD_AFTER, mxmlGetLastChild(events), node);
}
XMLList::free(eventList);
XMLList::free(categoryList);
mxmlDelete(append);
}
return xml;
}
char *EventsXML::getXML() {
mxml_node_t *xml = getTree();
// Add dynamic events from the drivers
mxml_node_t *events = mxmlFindElement(xml, xml, "events", NULL, NULL, MXML_DESCEND);
if (!events) {
logg->logError("Unable to find <events> node in the events.xml, please ensure the first two lines of events XML are:\n"
"<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n"
"<events>");
handleException();
}
for (Driver *driver = Driver::getHead(); driver != NULL; driver = driver->getNext()) {
driver->writeEvents(events);
}
char *string = mxmlSaveAllocString(xml, mxmlWhitespaceCB);
mxmlDelete(xml);
return string;
}
void EventsXML::write(const char *path) {
char file[PATH_MAX];
// Set full path
snprintf(file, PATH_MAX, "%s/events.xml", path);
char *buf = getXML();
if (util->writeToDisk(file, buf) < 0) {
logg->logError("Error writing %s\nPlease verify the path.", file);
handleException();
}
free(buf);
}
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