--- /dev/null
+/* Copyright (c) 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 "simgrid/msg.h"
+#include <xbt/replay.hpp>
+
+XBT_LOG_NEW_DEFAULT_CATEGORY(storage_actions, "Messages specific for this example");
+
+static xbt_dict_t opened_files = NULL;
+
+#define ACT_DEBUG(...) \
+ if (XBT_LOG_ISENABLED(storage_actions, xbt_log_priority_verbose)) { \
+ char* NAME = xbt_str_join_array(action, " "); \
+ XBT_DEBUG(__VA_ARGS__); \
+ xbt_free(NAME); \
+ } else \
+ ((void)0)
+
+static void log_action(const char* const* action, double date)
+{
+ if (XBT_LOG_ISENABLED(storage_actions, xbt_log_priority_verbose)) {
+ char* name = xbt_str_join_array(action, " ");
+ XBT_VERB("%s %f", name, date);
+ xbt_free(name);
+ }
+}
+
+static msg_file_t get_file_descriptor(const char* file_name)
+{
+ char full_name[1024];
+
+ snprintf(full_name, 1023, "%s:%s", MSG_process_get_name(MSG_process_self()), file_name);
+
+ msg_file_t file = (msg_file_t)xbt_dict_get_or_null(opened_files, full_name);
+ return file;
+}
+
+static sg_size_t parse_size(const char* string)
+{
+ sg_size_t size;
+ char* endptr;
+
+ size = strtoul(string, &endptr, 10);
+ if (*endptr != '\0')
+ THROWF(unknown_error, 0, "%s is not a long unsigned int (a.k.a. sg_size_t)", string);
+ return size;
+}
+
+static void action_open(const char* const* action)
+{
+ const char* file_name = action[2];
+ char full_name[1024];
+ msg_file_t file = NULL;
+ double clock = MSG_get_clock();
+
+ snprintf(full_name, 1023, "%s:%s", MSG_process_get_name(MSG_process_self()), file_name);
+
+ ACT_DEBUG("Entering Open: %s (filename: %s)", NAME, file_name);
+ file = MSG_file_open(file_name, NULL);
+
+ xbt_dict_set(opened_files, full_name, file, NULL);
+
+ log_action(action, MSG_get_clock() - clock);
+}
+
+static void action_read(const char* const* action)
+{
+ const char* file_name = action[2];
+ const char* size_str = action[3];
+ sg_size_t size = parse_size(size_str);
+
+ double clock = MSG_get_clock();
+
+ msg_file_t file = get_file_descriptor(file_name);
+
+ ACT_DEBUG("Entering Read: %s (size: %llu)", NAME, size);
+ MSG_file_read(file, size);
+
+ log_action(action, MSG_get_clock() - clock);
+}
+
+static void action_close(const char* const* action)
+{
+ const char* file_name = action[2];
+ msg_file_t file;
+ double clock = MSG_get_clock();
+
+ file = get_file_descriptor(file_name);
+
+ ACT_DEBUG("Entering Close: %s (filename: %s)", NAME, file_name);
+ MSG_file_close(file);
+
+ log_action(action, MSG_get_clock() - clock);
+}
+
+int main(int argc, char* argv[])
+{
+ MSG_init(&argc, argv);
+ /* Explicit initialization of the action module is required */
+ MSG_action_init();
+
+ xbt_assert(argc > 3,
+ "Usage: %s platform_file deployment_file [action_files]\n"
+ "\texample: %s platform.xml deployment.xml actions # if all actions are in the same file\n"
+ "\texample: %s platform.xml deployment.xml # if actions are in separate files, specified in deployment\n",
+ argv[0], argv[0], argv[0]);
+
+ MSG_create_environment(argv[1]);
+ MSG_launch_application(argv[2]);
+
+ /* Action registration */
+ xbt_replay_action_register("open", action_open);
+ xbt_replay_action_register("read", action_read);
+ xbt_replay_action_register("close", action_close);
+
+ if (opened_files == NULL)
+ opened_files = xbt_dict_new_homogeneous(NULL);
+ /* Actually do the simulation using MSG_action_trace_run */
+ msg_error_t res = MSG_action_trace_run(argv[3]); // it's ok to pass a NULL argument here
+
+ XBT_INFO("Simulation time %g", MSG_get_clock());
+
+ if (opened_files)
+ xbt_dict_free(&opened_files);
+
+ /* Explicit finalization of the action module is required now*/
+ MSG_action_exit();
+
+ return res != MSG_OK;
+}
