-/* Copyright (c) 2010, 2012-2015, 2017. The SimGrid Team.
- * All rights reserved. */
+/* Copyright (c) 2010-2019. The SimGrid Team. All rights reserved. */
/* This program is free software; you can redistribute it and/or modify it
* under the terms of the license (GNU LGPL) which comes with this package. */
-#include "src/internal_config.h"
-#include "xbt/ex.hpp"
+#include "simgrid/Exception.hpp"
#include "xbt/log.h"
#include "xbt/replay.hpp"
-#include "xbt/str.h"
-#include "xbt/sysdep.h"
#include <boost/algorithm/string.hpp>
-#include <ctype.h>
-#include <errno.h>
-#include <fstream>
-#include <queue>
-#include <unordered_map>
-#include <wchar.h>
XBT_LOG_NEW_DEFAULT_SUBCATEGORY(replay,xbt,"Replay trace reader");
-xbt_dict_t xbt_action_queues = nullptr;
-bool is_replay_active = false;
-
namespace simgrid {
namespace xbt {
std::ifstream* action_fs = nullptr;
std::unordered_map<std::string, action_fun> action_funs;
-typedef std::vector<std::string> ReplayAction;
+static std::unordered_map<std::string, std::queue<ReplayAction*>*> action_queues;
-static void read_and_trim_line(std::ifstream* fs, std::string* line)
+static void read_and_trim_line(std::ifstream& fs, std::string* line)
{
- std::getline(*fs, *line);
- boost::trim(*line);
+ do {
+ std::getline(fs, *line);
+ boost::trim(*line);
+ } while (not fs.eof() && (line->length() == 0 || line->front() == '#'));
XBT_DEBUG("got from trace: %s", line->c_str());
}
class ReplayReader {
- std::ifstream* fs;
+ std::ifstream fs;
std::string line;
public:
- char* filename_;
- int linenum = 0;
-
- explicit ReplayReader(const char* filename)
- {
- filename_ = xbt_strdup(filename);
- fs = new std::ifstream(filename, std::ifstream::in);
- }
- ~ReplayReader()
+ explicit ReplayReader(const char* filename) : fs(filename, std::ifstream::in)
{
- free(filename_);
- delete fs;
+ XBT_VERB("Prepare to replay file '%s'", filename);
+ xbt_assert(fs.is_open(), "Cannot read replay file '%s'", filename);
}
+ ReplayReader(const ReplayReader&) = delete;
+ ReplayReader& operator=(const ReplayReader&) = delete;
bool get(ReplayAction* action);
};
bool ReplayReader::get(ReplayAction* action)
{
read_and_trim_line(fs, &line);
- linenum++;
-
- if (line.length() > 0 && line.find("#") == std::string::npos) {
- boost::split(*action, line, boost::is_any_of(" \t"), boost::token_compress_on);
- return !fs->eof();
- } else {
- if (fs->eof())
- return false;
- else
- return this->get(action);
- }
-}
-
-void replay_init()
-{
- if (!is_replay_active) {
- xbt_action_queues = xbt_dict_new_homogeneous(nullptr);
- is_replay_active = true;
- }
-}
-
-void replay_exit()
-{
- xbt_dict_free(&xbt_action_queues);
- xbt_action_queues = nullptr;
-}
-bool replay_is_active()
-{
- return is_replay_active;
+ boost::split(*action, line, boost::is_any_of(" \t"), boost::token_compress_on);
+ return not fs.eof();
}
-static ReplayAction* get_action(char* name)
+static ReplayAction* get_action(const char* name)
{
ReplayAction* action;
- std::queue<ReplayAction*>* myqueue =
- static_cast<std::queue<ReplayAction*>*>(xbt_dict_get_or_null(xbt_action_queues, name));
+ std::queue<ReplayAction*>* myqueue = nullptr;
+ if (action_queues.find(std::string(name)) != action_queues.end())
+ myqueue = action_queues.at(std::string(name));
if (myqueue == nullptr || myqueue->empty()) { // Nothing stored for me. Read the file further
- if (action_fs == nullptr) { // File closed now. There's nothing more to read. I'm out of here
- goto todo_done;
- }
// Read lines until I reach something for me (which breaks in loop body) or end of file reached
- while (!action_fs->eof()) {
+ while (true) {
std::string action_line;
- read_and_trim_line(action_fs, &action_line);
- if (action_line.length() > 0 && action_line.find("#") == std::string::npos) {
- /* we cannot split in place here because we parse&store several lines for the colleagues... */
- action = new ReplayAction();
- boost::split(*action, action_line, boost::is_any_of(" \t"), boost::token_compress_on);
-
- // if it's for me, I'm done
- std::string evtname = action->front();
- if (evtname.compare(name) == 0) {
- return action;
- } else {
- // Else, I have to store it for the relevant colleague
- std::queue<ReplayAction*>* otherqueue =
- static_cast<std::queue<ReplayAction*>*>(xbt_dict_get_or_null(xbt_action_queues, evtname.c_str()));
- if (otherqueue == nullptr) { // Damn. Create the queue of that guy
- otherqueue = new std::queue<ReplayAction*>();
- xbt_dict_set(xbt_action_queues, evtname.c_str(), otherqueue, nullptr);
- }
- otherqueue->push(action);
+ read_and_trim_line(*action_fs, &action_line);
+ if (action_fs->eof())
+ break;
+ /* we cannot split in place here because we parse&store several lines for the colleagues... */
+ action = new ReplayAction();
+ boost::split(*action, action_line, boost::is_any_of(" \t"), boost::token_compress_on);
+
+ // if it's for me, I'm done
+ std::string evtname = action->front();
+ if (evtname.compare(name) == 0) {
+ return action;
+ } else {
+ // Else, I have to store it for the relevant colleague
+ std::queue<ReplayAction*>* otherqueue = nullptr;
+ auto act = action_queues.find(evtname);
+ if (act != action_queues.end()) {
+ otherqueue = act->second;
+ } else { // Damn. Create the queue of that guy
+ otherqueue = new std::queue<ReplayAction*>();
+ action_queues.insert({evtname, otherqueue});
}
+ otherqueue->push(action);
}
}
// end of file reached while searching in vain for more work
return action;
}
-// All my actions in the file are done and either I or a colleague closed the file. Let's cleanup before leaving.
-todo_done:
- if (myqueue != nullptr) {
- delete myqueue;
- xbt_dict_remove(xbt_action_queues, name);
- }
return nullptr;
}
-static void handle_action(ReplayAction* action)
+static void handle_action(ReplayAction& action)
{
- XBT_DEBUG("%s replays a %s action", action->at(0).c_str(), action->at(1).c_str());
- char** c_action = new char*[action->size() + 1];
- action_fun function = action_funs.at(action->at(1));
- int i = 0;
- for (auto arg : *action) {
- c_action[i] = xbt_strdup(arg.c_str());
- i++;
- }
- c_action[i] = nullptr;
+ XBT_DEBUG("%s replays a %s action", action.at(0).c_str(), action.at(1).c_str());
+ action_fun function = action_funs.at(action.at(1));
try {
- function(c_action);
- } catch (xbt_ex& e) {
- for (unsigned int j = 0; j < action->size(); j++)
- xbt_free(c_action[j]);
- delete[] c_action;
- action->clear();
+ function(action);
+ } catch (const Exception& e) {
+ action.clear();
xbt_die("Replay error:\n %s", e.what());
}
- for (unsigned int j = 0; j < action->size(); j++)
- xbt_free(c_action[j]);
- delete[] c_action;
}
/**
- * \ingroup XBT_replay
- * \brief function used internally to actually run the replay
-
- * \param argc argc .
- * \param argv argv
+ * @ingroup XBT_replay
+ * @brief function used internally to actually run the replay
*/
-int replay_runner(int argc, char* argv[])
+int replay_runner(const char* actor_name, const char* trace_filename)
{
- if (simgrid::xbt::action_fs) { // A unique trace file
+ std::string actor_name_string(actor_name);
+ if (simgrid::xbt::action_fs) { // <A unique trace file
while (true) {
- simgrid::xbt::ReplayAction* evt = simgrid::xbt::get_action(argv[0]);
- if (evt == nullptr)
+ simgrid::xbt::ReplayAction* evt = simgrid::xbt::get_action(actor_name);
+ if (!evt)
break;
- simgrid::xbt::handle_action(evt);
+ simgrid::xbt::handle_action(*evt);
delete evt;
}
+ if (action_queues.find(actor_name_string) != action_queues.end()) {
+ delete action_queues.at(actor_name_string);
+ action_queues.erase(actor_name_string);
+ }
} else { // Should have got my trace file in argument
- simgrid::xbt::ReplayAction* evt = new simgrid::xbt::ReplayAction();
- xbt_assert(argc >= 2, "No '%s' agent function provided, no simulation-wide trace file provided, "
- "and no process-wide trace file provided in deployment file. Aborting.",
- argv[0]);
- simgrid::xbt::ReplayReader* reader = new simgrid::xbt::ReplayReader(argv[1]);
- while (reader->get(evt)) {
- if (evt->at(0).compare(argv[0]) == 0) {
+ xbt_assert(trace_filename != nullptr);
+ simgrid::xbt::ReplayAction evt;
+ simgrid::xbt::ReplayReader reader(trace_filename);
+ while (reader.get(&evt)) {
+ if (evt.front().compare(actor_name) == 0) {
simgrid::xbt::handle_action(evt);
} else {
- XBT_WARN("%s:%d: Ignore trace element not for me", reader->filename_, reader->linenum);
+ XBT_WARN("Ignore trace element not for me (target='%s', I am '%s')", evt.front().c_str(), actor_name);
}
- evt->clear();
+ evt.clear();
}
- delete evt;
- delete reader;
}
return 0;
}
}
/**
- * \ingroup XBT_replay
- * \brief Registers a function to handle a kind of action
+ * @ingroup XBT_replay
+ * @brief Registers a function to handle a kind of action
*
* Registers a function to handle a kind of action
- * This table is then used by \ref xbt_replay_action_runner
+ * This table is then used by @ref simgrid::xbt::replay_runner
*
* The argument of the function is the line describing the action, fields separated by spaces.
*
- * \param action_name the reference name of the action.
- * \param function prototype given by the type: void...(const char** action)
+ * @param action_name the reference name of the action.
+ * @param function prototype given by the type: void...(const char** action)
+ */
+void xbt_replay_action_register(const char* action_name, const action_fun& function)
+{
+ simgrid::xbt::action_funs[std::string(action_name)] = function;
+}
+
+/**
+ * @ingroup XBT_replay
+ * @brief Get the function that was previously registered to handle a kind of action
+ *
+ * This can be useful if you want to override and extend an existing action.
*/
-void xbt_replay_action_register(const char* action_name, action_fun function)
+action_fun xbt_replay_action_get(const char* action_name)
{
- if (!is_replay_active) // If the user registers a function before the start
- simgrid::xbt::replay_init();
- simgrid::xbt::action_funs.insert({std::string(action_name), function});
+ return simgrid::xbt::action_funs.at(std::string(action_name));
}
