-/* Copyright (c) 2010, 2012-2015. The SimGrid Team.
+/* Copyright (c) 2010, 2012-2015, 2017. 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 <xbt/ex.hpp>
-#include "src/internal_config.h"
-#include "xbt/sysdep.h"
+#include "xbt/ex.hpp"
#include "xbt/log.h"
-#include "xbt/str.h"
-#include "xbt/file.h"
-#include "xbt/replay.h"
+#include "xbt/replay.hpp"
-#include <errno.h>
-#include <ctype.h>
-#include <wchar.h>
+#include <boost/algorithm/string.hpp>
XBT_LOG_NEW_DEFAULT_SUBCATEGORY(replay,xbt,"Replay trace reader");
-typedef struct s_replay_reader {
- FILE *fp;
- char *line;
- size_t line_len;
- char *position; /* stable storage */
- char *filename;
- int linenum;
-} s_xbt_replay_reader_t;
+namespace simgrid {
+namespace xbt {
-FILE *xbt_action_fp;
+std::ifstream* action_fs = nullptr;
+std::unordered_map<std::string, action_fun> action_funs;
-xbt_dict_t xbt_action_funs = nullptr;
-xbt_dict_t xbt_action_queues = nullptr;
-
-static char *action_line = nullptr;
-static size_t action_len = 0;
-
-int is_replay_active = 0 ;
-
-static char **action_get_action(char *name);
-
-static char *str_tolower (const char *str)
+static void read_and_trim_line(std::ifstream* fs, std::string* line)
{
- char *ret = xbt_strdup (str);
- int i, n = strlen (ret);
- for (i = 0; i < n; i++)
- ret[i] = tolower (str[i]);
- return ret;
-}
-
-int _xbt_replay_is_active(){
- return is_replay_active;
+ do {
+ std::getline(*fs, *line);
+ boost::trim(*line);
+ } while (!fs->eof() && (line->length() == 0 || line->front() == '#'));
+ XBT_DEBUG("got from trace: %s", line->c_str());
}
-xbt_replay_reader_t xbt_replay_reader_new(const char *filename)
-{
- xbt_replay_reader_t res = xbt_new0(s_xbt_replay_reader_t,1);
- res->fp = fopen(filename, "r");
- xbt_assert(res->fp != nullptr, "Cannot open %s: %s", filename, strerror(errno));
- res->filename = xbt_strdup(filename);
- return res;
-}
+class ReplayReader {
+ std::ifstream* fs;
+ std::string line;
-const char **xbt_replay_reader_get(xbt_replay_reader_t reader)
-{
- ssize_t read;
- xbt_dynar_t d;
- read = xbt_getline(&reader->line, &reader->line_len, reader->fp);
- //XBT_INFO("got from trace: %s",reader->line);
- reader->linenum++;
- if (read==-1)
- return nullptr; /* end of file */
- char *comment = strchr(reader->line, '#');
- if (comment != nullptr)
- *comment = '\0';
- xbt_str_trim(reader->line, nullptr);
- if (reader->line[0] == '\0')
- return xbt_replay_reader_get(reader); /* Get next line */
-
- d=xbt_str_split_quoted_in_place(reader->line);
- if (xbt_dynar_is_empty(d)) {
- xbt_dynar_free(&d);
- return xbt_replay_reader_get(reader); /* Get next line */
+public:
+ explicit ReplayReader(const char* filename)
+ {
+ fs = new std::ifstream(filename, std::ifstream::in);
}
- return (const char**) xbt_dynar_to_array(d);
-}
+ ~ReplayReader()
+ {
+ delete fs;
+ }
+ bool get(ReplayAction* action);
+};
-void xbt_replay_reader_free(xbt_replay_reader_t *reader)
+bool ReplayReader::get(ReplayAction* action)
{
- free((*reader)->filename);
- free((*reader)->position);
- fclose((*reader)->fp);
- free((*reader)->line);
- free(*reader);
- *reader=nullptr;
-}
+ read_and_trim_line(fs, &line);
-/**
- * \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
- *
- * The argument of the function is the line describing the action, splitted on spaces with xbt_str_split_quoted()
- *
- * \param action_name the reference name of the action.
- * \param function prototype given by the type: void...(xbt_dynar_t action)
- */
-void xbt_replay_action_register(const char *action_name, action_fun function)
-{
- char* lowername = str_tolower (action_name);
- xbt_dict_set(xbt_action_funs, lowername, (void*) function, nullptr);
- xbt_free(lowername);
+ boost::split(*action, line, boost::is_any_of(" \t"), boost::token_compress_on);
+ return !fs->eof();
}
-/** @brief Initializes the replay mechanism, and returns true if (and only if) it was necessary
- *
- * It returns false if it was already done by another process.
- */
-int _xbt_replay_action_init()
+static ReplayAction* get_action(char* name)
{
- if (xbt_action_funs)
- return 0;
- is_replay_active = 1;
- xbt_action_funs = xbt_dict_new_homogeneous(nullptr);
- xbt_action_queues = xbt_dict_new_homogeneous(nullptr);
- return 1;
+ ReplayAction* action;
+
+ 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
+ // Read lines until I reach something for me (which breaks in loop body) or end of file reached
+ while (true) {
+ std::string action_line;
+ 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;
+ if (action_queues.find(evtname) != action_queues.end())
+ otherqueue = action_queues.at(evtname);
+ 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
+ } else {
+ // Get something from my queue and return it
+ action = myqueue->front();
+ myqueue->pop();
+ return action;
+ }
+ return nullptr;
}
-void _xbt_replay_action_exit()
+static void handle_action(ReplayAction* action)
{
- xbt_dict_free(&xbt_action_queues);
- xbt_dict_free(&xbt_action_funs);
- free(action_line);
- xbt_action_queues = nullptr;
- xbt_action_funs = nullptr;
- action_line = nullptr;
+ 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;
+ 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();
+ 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;
}
/**
* \param argc argc .
* \param argv argv
*/
-int xbt_replay_action_runner(int argc, char *argv[])
+int replay_runner(int argc, char* argv[])
{
- if (xbt_action_fp) { // A unique trace file
+ if (simgrid::xbt::action_fs) { // A unique trace file
while (true) {
- char **evt = action_get_action(argv[0]);
+ simgrid::xbt::ReplayAction* evt = simgrid::xbt::get_action(argv[0]);
if (evt == nullptr)
break;
-
- char* lowername = str_tolower (evt[1]);
- action_fun function = (action_fun)xbt_dict_get(xbt_action_funs, lowername);
- xbt_free(lowername);
- try {
- function((const char **)evt);
- }
- catch(xbt_ex& e) {
- xbt_die("Replay error :\n %s", e.what());
- }
- for (int i=0;evt[i]!= nullptr;i++)
- free(evt[i]);
- free(evt);
+ simgrid::xbt::handle_action(evt);
+ delete evt;
}
- } else { // Should have got my trace file in argument
- const char **evt;
- 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]
- );
- xbt_replay_reader_t reader = xbt_replay_reader_new(argv[1]);
- while ((evt=xbt_replay_reader_get(reader))) {
- if (!strcmp(argv[0],evt[0])) {
- char* lowername = str_tolower (evt[1]);
- action_fun function = (action_fun)xbt_dict_get(xbt_action_funs, lowername);
- xbt_free(lowername);
- try {
- function(evt);
- } catch(xbt_ex& e) {
- free(evt);
- xbt_die("Replay error on line %d of file %s :\n %s" , reader->linenum,reader->filename, e.what());
- }
+ if (action_queues.find(std::string(argv[0])) != action_queues.end()) {
+ std::queue<ReplayAction*>* myqueue = action_queues.at(std::string(argv[0]));
+ delete myqueue;
+ action_queues.erase(std::string(argv[0]));
+ }
+ } 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->front().compare(argv[0]) == 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");
}
- free(evt);
+ evt->clear();
}
- xbt_replay_reader_free(&reader);
+ delete evt;
+ delete reader;
}
return 0;
}
+}
+}
-static char **action_get_action(char *name)
+/**
+ * \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
+ *
+ * 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)
+ */
+void xbt_replay_action_register(const char* action_name, action_fun function)
{
- xbt_dynar_t evt = nullptr;
- char *evtname = nullptr;
-
- xbt_dynar_t myqueue = (xbt_dynar_t) xbt_dict_get_or_null(xbt_action_queues, name);
- if (myqueue == nullptr || xbt_dynar_is_empty(myqueue)) { // nothing stored for me. Read the file further
- if (xbt_action_fp == 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 (xbt_getline(&action_line, &action_len, xbt_action_fp) != -1) {
- // cleanup and split the string I just read
- char *comment = strchr(action_line, '#');
- if (comment != nullptr)
- *comment = '\0';
- xbt_str_trim(action_line, nullptr);
- if (action_line[0] == '\0')
- continue;
- /* we cannot split in place here because we parse&store several lines for
- * the colleagues... */
- evt = xbt_str_split_quoted(action_line);
-
- // if it's for me, I'm done
- evtname = xbt_dynar_get_as(evt, 0, char *);
- if (!strcasecmp(name, evtname)) {
- return (char**) xbt_dynar_to_array(evt);
- } else {
- // Else, I have to store it for the relevant colleague
- xbt_dynar_t otherqueue =
- (xbt_dynar_t) xbt_dict_get_or_null(xbt_action_queues, evtname);
- if (otherqueue == nullptr) { // Damn. Create the queue of that guy
- otherqueue = xbt_dynar_new(sizeof(xbt_dynar_t), xbt_dynar_free_voidp);
- xbt_dict_set(xbt_action_queues, evtname, otherqueue, nullptr);
- }
- xbt_dynar_push(otherqueue, &evt);
- }
- }
- goto todo_done; // end of file reached while searching in vain for more work
- } else {
- // Get something from my queue and return it
- xbt_dynar_shift(myqueue, &evt);
- return (char**) xbt_dynar_to_array(evt);
- }
+ simgrid::xbt::action_funs.insert({std::string(action_name), function});
+}
- // I did all my actions for me in the file (either I closed the file, or a colleague did)
- // Let's cleanup before leaving
-todo_done:
- if (myqueue != nullptr) {
- xbt_dynar_free(&myqueue);
- xbt_dict_remove(xbt_action_queues, name);
- }
- return nullptr;
+/**
+ * \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.
+ */
+action_fun xbt_replay_action_get(const char* action_name)
+{
+ return simgrid::xbt::action_funs.at(std::string(action_name));
}
