X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/9371d0958b1cb03eb1ad4ccc8d2ba04416b4fd28..a7dc4456f42a853a6294c774ccc9397304732c6e:/src/instr/instr_interface.c diff --git a/src/instr/instr_interface.c b/src/instr/instr_interface.c index 6c547ee6b1..5b2140216a 100644 --- a/src/instr/instr_interface.c +++ b/src/instr/instr_interface.c @@ -7,30 +7,94 @@ #include "simgrid_config.h" #ifdef HAVE_TRACING - #include "instr/instr_private.h" +#include "surf/network_private.h" + +typedef enum { + INSTR_US_DECLARE, + INSTR_US_SET, + INSTR_US_ADD, + INSTR_US_SUB +} InstrUserVariable; XBT_LOG_NEW_DEFAULT_SUBCATEGORY (instr_api, instr, "API"); -xbt_dict_t created_categories; +xbt_dict_t created_categories = NULL; +xbt_dict_t declared_marks = NULL; +xbt_dict_t user_host_variables = NULL; +xbt_dict_t user_link_variables = NULL; + +static xbt_dynar_t instr_dict_to_dynar (xbt_dict_t filter) +{ + if (!TRACE_is_enabled()) return NULL; + if (!TRACE_needs_platform()) return NULL; + + xbt_dynar_t ret = xbt_dynar_new (sizeof(char*), &xbt_free_ref); + xbt_dict_cursor_t cursor = NULL; + char *name, *value; + xbt_dict_foreach(filter, cursor, name, value) { + xbt_dynar_push_as (ret, char*, xbt_strdup(name)); + } + return ret; +} +/** \ingroup TRACE_category + * \brief Declare a new category with a random color. + * + * This function should be used to define a user category. The + * category can be used to differentiate the tasks that are created + * during the simulation (for example, tasks from server1, server2, + * or request tasks, computation tasks, communication tasks). All + * resource utilization (host power and link bandwidth) will be + * classified according to the task category. Tasks that do not + * belong to a category are not traced. The color for the category + * that is being declared is random. This function has no effect + * if a category with the same name has been already declared. + * + * See \ref tracing_tracing for details on how to trace + * the (categorized) resource utilization. + * + * \param category The name of the new tracing category to be created. + * + * \see TRACE_category_with_color, MSG_task_set_category, SD_task_set_category + */ void TRACE_category(const char *category) { TRACE_category_with_color (category, NULL); } +/** \ingroup TRACE_category + * \brief Declare a new category with a color. + * + * Same as #TRACE_category, but let user specify a color encoded as a + * RGB-like string with three floats from 0 to 1. So, to specify a + * red color, pass "1 0 0" as color parameter. A light-gray color + * can be specified using "0.7 0.7 0.7" as color. This function has + * no effect if a category with the same name has been already declared. + * + * See \ref tracing_tracing for details on how to trace + * the (categorized) resource utilization. + * + * \param category The name of the new tracing category to be created. + * \param color The color of the category (see \ref tracing_tracing to + * know how to correctly specify the color) + * + * \see MSG_task_set_category, SD_task_set_category + */ void TRACE_category_with_color (const char *category, const char *color) { - if (!TRACE_is_active()) - return; + /* safe switch */ + if (!TRACE_is_enabled()) return; + + if (!(TRACE_categorized() && category != NULL)) return; - xbt_assert1 (instr_platform_traced(), - "%s must be called after environment creation", __FUNCTION__); + /* if platform is not traced, we can't deal with categories */ + if (!TRACE_needs_platform()) return; //check if category is already created char *created = xbt_dict_get_or_null(created_categories, category); if (created) return; - xbt_dict_set (created_categories, category, xbt_strdup("1"), xbt_free); + xbt_dict_set (created_categories, category, xbt_strdup("1"), NULL); //define final_color char final_color[INSTR_DEFAULT_STR_SIZE]; @@ -44,48 +108,683 @@ void TRACE_category_with_color (const char *category, const char *color) snprintf (final_color, INSTR_DEFAULT_STR_SIZE, "%s", color); } - DEBUG2("CAT,declare %s, %s", category, final_color); - -//FIXME -// - if (final) { -// - //for m_process_t -// - if (TRACE_msg_process_is_enabled()) -// - pajeDefineContainerType("process", type, "process"); -// - if (TRACE_msg_process_is_enabled()) -// - pajeDefineStateType("process-state", "process", "process-state"); -// - -// - if (TRACE_msg_task_is_enabled()) -// - pajeDefineContainerType("task", type, "task"); -// - if (TRACE_msg_task_is_enabled()) -// - pajeDefineStateType("task-state", "task", "task-state"); -// - } + XBT_DEBUG("CAT,declare %s, %s", category, final_color); //define the type of this category on top of hosts and links - if (TRACE_categorized ()){ - instr_new_user_variable_type (category, final_color); - } + instr_new_variable_type (category, final_color); +} + + +/** \ingroup TRACE_category + * \brief Get declared categories + * + * This function should be used to get categories that were already + * declared with #TRACE_category or with #TRACE_category_with_color. + * + * See \ref tracing_tracing for details on how to trace + * the (categorized) resource utilization. + * + * \return A dynar with the declared categories, must be freed with xbt_dynar_free. + * + * \see MSG_task_set_category, SD_task_set_category + */ +xbt_dynar_t TRACE_get_categories (void) +{ + if (!TRACE_is_enabled()) return NULL; + if (!TRACE_categorized()) return NULL; + + return instr_dict_to_dynar (created_categories); } +/** \ingroup TRACE_mark + * \brief Declare a new type for tracing mark. + * + * This function declares a new Paje event + * type in the trace file that can be used by + * simulators to declare application-level + * marks. This function is independent of + * which API is used in SimGrid. + * + * \param mark_type The name of the new type. + * + * \see TRACE_mark + */ void TRACE_declare_mark(const char *mark_type) { - if (!TRACE_is_active()) - return; - if (!mark_type) - return; + /* safe switch */ + if (!TRACE_is_enabled()) return; - DEBUG1("MARK,declare %s", mark_type); - pajeDefineEventType(mark_type, "0", mark_type); + if (!mark_type) return; + + //check if mark_type is already declared + char *created = xbt_dict_get_or_null(declared_marks, mark_type); + if (created) return; + xbt_dict_set (declared_marks, mark_type, xbt_strdup("1"), NULL); + + XBT_DEBUG("MARK,declare %s", mark_type); + PJ_type_event_new(mark_type, NULL, PJ_type_get_root()); } +/** + * \ingroup TRACE_mark + * \brief Create a new instance of a tracing mark type. + * + * This function creates a mark in the trace file. The + * first parameter had to be previously declared using + * #TRACE_declare_mark, the second is the identifier + * for this mark instance. We recommend that the + * mark_value is a unique value for the whole simulation. + * Nevertheless, this is not a strong requirement: the + * trace will be valid even if there are multiple mark + * identifiers for the same trace. + * + * \param mark_type The name of the type for which the new instance will belong. + * \param mark_value The name of the new instance mark. + * + * \see TRACE_declare_mark + */ void TRACE_mark(const char *mark_type, const char *mark_value) { - if (!TRACE_is_active()) - return; - if (!mark_type || !mark_value) - return; + /* safe switch */ + if (!TRACE_is_enabled()) return; + + if (!mark_type || !mark_value) return; + + //check if mark_type is already declared + char *created = xbt_dict_get_or_null(declared_marks, mark_type); + if (created) return; + + XBT_DEBUG("MARK %s %s", mark_type, mark_value); + type_t type = PJ_type_get (mark_type, PJ_type_get_root()); + if (type == NULL){ + THROWF (tracing_error, 1, "mark_type with name (%s) not declared before", mark_type); + } + val_t value = PJ_value_get (mark_value, type); + if (value == NULL){ + value = PJ_value_new (mark_value, NULL, type); + } + new_pajeNewEvent (MSG_get_clock(), PJ_container_get_root(), type, value); +} + +/** \ingroup TRACE_mark + * \brief Get declared marks + * + * This function should be used to get marks that were already + * declared with #TRACE_declare_mark. + * + * \return A dynar with the declared marks, must be freed with xbt_dynar_free. + * + */ +xbt_dynar_t TRACE_get_marks (void) +{ + if (!TRACE_is_enabled()) return NULL; + + return instr_dict_to_dynar (declared_marks); +} + +static void instr_user_variable(double time, + const char *resource, + const char *variable, + const char *father_type, + double value, + InstrUserVariable what, + const char *color, + xbt_dict_t filter) +{ + /* safe switch */ + if (!TRACE_is_enabled()) return; + + /* if platform is not traced, we don't allow user variables */ + if (!TRACE_needs_platform()) return; - DEBUG2("MARK %s %s", mark_type, mark_value); - pajeNewEvent(MSG_get_clock(), mark_type, "0", mark_value); + //check if variable is already declared + char *created = xbt_dict_get_or_null(declared_marks, variable); + if (what == INSTR_US_DECLARE){ + if (created){ + //already declared + return; + }else{ + xbt_dict_set (filter, variable, xbt_strdup("1"), NULL); + } + }else{ + if (!created){ + //not declared, ignore + return; + } + } + + char valuestr[100]; + snprintf(valuestr, 100, "%g", value); + + switch (what){ + case INSTR_US_DECLARE: + instr_new_user_variable_type (father_type, variable, color); + break; + case INSTR_US_SET: + { + container_t container = PJ_container_get(resource); + type_t type = PJ_type_get (variable, container->type); + new_pajeSetVariable(time, container, type, value); + break; + } + case INSTR_US_ADD: + { + container_t container = PJ_container_get(resource); + type_t type = PJ_type_get (variable, container->type); + new_pajeAddVariable(time, container, type, value); + break; + } + case INSTR_US_SUB: + { + container_t container = PJ_container_get(resource); + type_t type = PJ_type_get (variable, container->type); + new_pajeSubVariable(time, container, type, value); + break; + } + default: + //TODO: launch exception + break; + } +} + +static void instr_user_srcdst_variable(double time, + const char *src, + const char *dst, + const char *variable, + const char *father_type, + double value, + InstrUserVariable what) +{ + xbt_dynar_t route=NULL; + network_element_t src_elm = xbt_lib_get_or_null(host_lib,src,ROUTING_HOST_LEVEL); + if(!src_elm) src_elm = xbt_lib_get_or_null(as_router_lib,src,ROUTING_ASR_LEVEL); + if(!src_elm) xbt_die("Element '%s' not found!",src); + + network_element_t dst_elm = xbt_lib_get_or_null(host_lib,dst,ROUTING_HOST_LEVEL); + if(!dst_elm) dst_elm = xbt_lib_get_or_null(as_router_lib,dst,ROUTING_ASR_LEVEL); + if(!dst_elm) xbt_die("Element '%s' not found!",dst); + + routing_get_route_and_latency (src_elm, dst_elm, &route,NULL); + unsigned int i; + void *link; + xbt_dynar_foreach (route, i, link) { + char *link_name = ((link_CM02_t)link)->lmm_resource.generic_resource.name; + instr_user_variable (time, link_name, variable, father_type, value, what, NULL, user_link_variables); + } +} + +/** \ingroup TRACE_API + * \brief Creates a file with the topology of the platform file used for the simulator. + * + * The graph topology will have the following properties: all hosts, links and routers + * of the platform file are mapped to graph nodes; routes are mapped to edges. + * The platform's AS are not represented in the output. + * + * \param filename The name of the file that will hold the graph. + * + * \return 1 of successful, 0 otherwise. + */ +int TRACE_platform_graph_export_graphviz (const char *filename) +{ + /* returns 1 if successful, 0 otherwise */ + if (!TRACE_is_enabled()) return 0; + xbt_graph_t g = instr_routing_platform_graph(); + if (g == NULL) return 0; + instr_routing_platform_graph_export_graphviz (g, filename); + xbt_graph_free_graph (g, xbt_free, xbt_free, NULL); + return 1; +} + +/* + * Derived functions that use instr_user_variable and TRACE_user_srcdst_variable. + * They were previously defined as pre-processors directives, but were transformed + * into functions so the user can track them using gdb. + */ + +/* for host variables */ +/** \ingroup TRACE_user_variables + * \brief Declare a new user variable associated to hosts. + * + * Declare a user variable that will be associated to hosts. + * A user host variable can be used to trace user variables + * such as the number of tasks in a server, the number of + * clients in an application (for hosts), and so on. The color + * associated to this new variable will be random. + * + * \param variable The name of the new variable to be declared. + * + * \see TRACE_host_variable_declare_with_color + */ +void TRACE_host_variable_declare (const char *variable) +{ + instr_user_variable(0, NULL, variable, "HOST", 0, INSTR_US_DECLARE, NULL, user_host_variables); +} + +/** \ingroup TRACE_user_variables + * \brief Declare a new user variable associated to hosts with a color. + * + * Same as #TRACE_host_variable_declare, but associated a color + * to the newly created user host variable. The color needs to be + * a string with three numbers separated by spaces in the range [0,1]. + * A light-gray color can be specified using "0.7 0.7 0.7" as color. + * + * \param variable The name of the new variable to be declared. + * \param color The color for the new variable. + * + */ +void TRACE_host_variable_declare_with_color (const char *variable, const char *color) +{ + instr_user_variable(0, NULL, variable, "HOST", 0, INSTR_US_DECLARE, color, user_host_variables); +} + +/** \ingroup TRACE_user_variables + * \brief Set the value of a variable of a host. + * + * \param host The name of the host to be considered. + * \param variable The name of the variable to be considered. + * \param value The new value of the variable. + * + * \see TRACE_host_variable_declare, TRACE_host_variable_add, TRACE_host_variable_sub + */ +void TRACE_host_variable_set (const char *host, const char *variable, double value) +{ + TRACE_host_variable_set_with_time (MSG_get_clock(), host, variable, value); +} + +/** \ingroup TRACE_user_variables + * \brief Add a value to a variable of a host. + * + * \param host The name of the host to be considered. + * \param variable The name of the variable to be considered. + * \param value The value to be added to the variable. + * + * \see TRACE_host_variable_declare, TRACE_host_variable_set, TRACE_host_variable_sub + */ +void TRACE_host_variable_add (const char *host, const char *variable, double value) +{ + TRACE_host_variable_add_with_time (MSG_get_clock(), host, variable, value); +} + +/** \ingroup TRACE_user_variables + * \brief Subtract a value from a variable of a host. + * + * \param host The name of the host to be considered. + * \param variable The name of the variable to be considered. + * \param value The value to be subtracted from the variable. + * + * \see TRACE_host_variable_declare, TRACE_host_variable_set, TRACE_host_variable_add + */ +void TRACE_host_variable_sub (const char *host, const char *variable, double value) +{ + TRACE_host_variable_sub_with_time (MSG_get_clock(), host, variable, value); +} + +/** \ingroup TRACE_user_variables + * \brief Set the value of a variable of a host at a given timestamp. + * + * Same as #TRACE_host_variable_set, but let user specify + * the time used to trace it. Users can specify a time that + * is not the simulated clock time as defined by the core + * simulator. This allows a fine-grain control of time + * definition, but should be used with caution since the trace + * can be inconsistent if resource utilization traces are also traced. + * + * \param time The timestamp to be used to tag this change of value. + * \param host The name of the host to be considered. + * \param variable The name of the variable to be considered. + * \param value The new value of the variable. + * + * \see TRACE_host_variable_declare, TRACE_host_variable_add_with_time, TRACE_host_variable_sub_with_time + */ +void TRACE_host_variable_set_with_time (double time, const char *host, const char *variable, double value) +{ + instr_user_variable(time, host, variable, "HOST", value, INSTR_US_SET, NULL, user_host_variables); +} + +/** \ingroup TRACE_user_variables + * \brief Add a value to a variable of a host at a given timestamp. + * + * Same as #TRACE_host_variable_add, but let user specify + * the time used to trace it. Users can specify a time that + * is not the simulated clock time as defined by the core + * simulator. This allows a fine-grain control of time + * definition, but should be used with caution since the trace + * can be inconsistent if resource utilization traces are also traced. + * + * \param time The timestamp to be used to tag this change of value. + * \param host The name of the host to be considered. + * \param variable The name of the variable to be considered. + * \param value The value to be added to the variable. + * + * \see TRACE_host_variable_declare, TRACE_host_variable_set_with_time, TRACE_host_variable_sub_with_time + */ +void TRACE_host_variable_add_with_time (double time, const char *host, const char *variable, double value) +{ + instr_user_variable(time, host, variable, "HOST", value, INSTR_US_ADD, NULL, user_host_variables); +} + +/** \ingroup TRACE_user_variables + * \brief Subtract a value from a variable of a host at a given timestamp. + * + * Same as #TRACE_host_variable_sub, but let user specify + * the time used to trace it. Users can specify a time that + * is not the simulated clock time as defined by the core + * simulator. This allows a fine-grain control of time + * definition, but should be used with caution since the trace + * can be inconsistent if resource utilization traces are also traced. + * + * \param time The timestamp to be used to tag this change of value. + * \param host The name of the host to be considered. + * \param variable The name of the variable to be considered. + * \param value The value to be subtracted from the variable. + * + * \see TRACE_host_variable_declare, TRACE_host_variable_set_with_time, TRACE_host_variable_add_with_time + */ +void TRACE_host_variable_sub_with_time (double time, const char *host, const char *variable, double value) +{ + instr_user_variable(time, host, variable, "HOST", value, INSTR_US_SUB, NULL, user_host_variables); +} + +/** \ingroup TRACE_user_variables + * \brief Get declared user host variables + * + * This function should be used to get host variables that were already + * declared with #TRACE_host_variable_declare or with #TRACE_host_variable_declare_with_color. + * + * \return A dynar with the declared host variables, must be freed with xbt_dynar_free. + */ +xbt_dynar_t TRACE_get_host_variables (void) +{ + return instr_dict_to_dynar (user_host_variables); +} + +/* for link variables */ +/** \ingroup TRACE_user_variables + * \brief Declare a new user variable associated to links. + * + * Declare a user variable that will be associated to links. + * A user link variable can be used, for example, to trace + * user variables such as the number of messages being + * transferred through network links. The color + * associated to this new variable will be random. + * + * \param variable The name of the new variable to be declared. + * + * \see TRACE_link_variable_declare_with_color + */ +void TRACE_link_variable_declare (const char *variable) +{ + instr_user_variable (0, NULL, variable, "LINK", 0, INSTR_US_DECLARE, NULL, user_link_variables); +} + +/** \ingroup TRACE_user_variables + * \brief Declare a new user variable associated to links with a color. + * + * Same as #TRACE_link_variable_declare, but associated a color + * to the newly created user link variable. The color needs to be + * a string with three numbers separated by spaces in the range [0,1]. + * A light-gray color can be specified using "0.7 0.7 0.7" as color. + * + * \param variable The name of the new variable to be declared. + * \param color The color for the new variable. + * + */ +void TRACE_link_variable_declare_with_color (const char *variable, const char *color) +{ + instr_user_variable (0, NULL, variable, "LINK", 0, INSTR_US_DECLARE, color, user_link_variables); +} + +/** \ingroup TRACE_user_variables + * \brief Set the value of a variable of a link. + * + * \param link The name of the link to be considered. + * \param variable The name of the variable to be considered. + * \param value The new value of the variable. + * + * \see TRACE_link_variable_declare, TRACE_link_variable_add, TRACE_link_variable_sub + */ +void TRACE_link_variable_set (const char *link, const char *variable, double value) +{ + TRACE_link_variable_set_with_time (MSG_get_clock(), link, variable, value); +} + +/** \ingroup TRACE_user_variables + * \brief Add a value to a variable of a link. + * + * \param link The name of the link to be considered. + * \param variable The name of the variable to be considered. + * \param value The value to be added to the variable. + * + * \see TRACE_link_variable_declare, TRACE_link_variable_set, TRACE_link_variable_sub + */ +void TRACE_link_variable_add (const char *link, const char *variable, double value) +{ + TRACE_link_variable_add_with_time (MSG_get_clock(), link, variable, value); +} + +/** \ingroup TRACE_user_variables + * \brief Subtract a value from a variable of a link. + * + * \param link The name of the link to be considered. + * \param variable The name of the variable to be considered. + * \param value The value to be subtracted from the variable. + * + * \see TRACE_link_variable_declare, TRACE_link_variable_set, TRACE_link_variable_add + */ +void TRACE_link_variable_sub (const char *link, const char *variable, double value) +{ + TRACE_link_variable_sub_with_time (MSG_get_clock(), link, variable, value); +} + +/** \ingroup TRACE_user_variables + * \brief Set the value of a variable of a link at a given timestamp. + * + * Same as #TRACE_link_variable_set, but let user specify + * the time used to trace it. Users can specify a time that + * is not the simulated clock time as defined by the core + * simulator. This allows a fine-grain control of time + * definition, but should be used with caution since the trace + * can be inconsistent if resource utilization traces are also traced. + * + * \param time The timestamp to be used to tag this change of value. + * \param link The name of the link to be considered. + * \param variable The name of the variable to be considered. + * \param value The new value of the variable. + * + * \see TRACE_link_variable_declare, TRACE_link_variable_add_with_time, TRACE_link_variable_sub_with_time + */ +void TRACE_link_variable_set_with_time (double time, const char *link, const char *variable, double value) +{ + instr_user_variable (time, link, variable, "LINK", value, INSTR_US_SET, NULL, user_link_variables); +} + +/** \ingroup TRACE_user_variables + * \brief Add a value to a variable of a link at a given timestamp. + * + * Same as #TRACE_link_variable_add, but let user specify + * the time used to trace it. Users can specify a time that + * is not the simulated clock time as defined by the core + * simulator. This allows a fine-grain control of time + * definition, but should be used with caution since the trace + * can be inconsistent if resource utilization traces are also traced. + * + * \param time The timestamp to be used to tag this change of value. + * \param link The name of the link to be considered. + * \param variable The name of the variable to be considered. + * \param value The value to be added to the variable. + * + * \see TRACE_link_variable_declare, TRACE_link_variable_set_with_time, TRACE_link_variable_sub_with_time + */ +void TRACE_link_variable_add_with_time (double time, const char *link, const char *variable, double value) +{ + instr_user_variable (time, link, variable, "LINK", value, INSTR_US_ADD, NULL, user_link_variables); +} + +/** \ingroup TRACE_user_variables + * \brief Subtract a value from a variable of a link at a given timestamp. + * + * Same as #TRACE_link_variable_sub, but let user specify + * the time used to trace it. Users can specify a time that + * is not the simulated clock time as defined by the core + * simulator. This allows a fine-grain control of time + * definition, but should be used with caution since the trace + * can be inconsistent if resource utilization traces are also traced. + * + * \param time The timestamp to be used to tag this change of value. + * \param link The name of the link to be considered. + * \param variable The name of the variable to be considered. + * \param value The value to be subtracted from the variable. + * + * \see TRACE_link_variable_declare, TRACE_link_variable_set_with_time, TRACE_link_variable_add_with_time + */ +void TRACE_link_variable_sub_with_time (double time, const char *link, const char *variable, double value) +{ + instr_user_variable (time, link, variable, "LINK", value, INSTR_US_SUB, NULL, user_link_variables); +} + +/* for link variables, but with src and dst used for get_route */ +/** \ingroup TRACE_user_variables + * \brief Set the value of the variable present in the links connecting source and destination. + * + * Same as #TRACE_link_variable_set, but instead of providing the + * name of link to be considered, provide the source and destination + * hosts. All links that are part of the route between source and + * destination will have the variable set to the provided value. + * + * \param src The name of the source host for get route. + * \param dst The name of the destination host for get route. + * \param variable The name of the variable to be considered. + * \param value The new value of the variable. + * + * \see TRACE_link_variable_declare, TRACE_link_srcdst_variable_add, TRACE_link_srcdst_variable_sub + */ +void TRACE_link_srcdst_variable_set (const char *src, const char *dst, const char *variable, double value) +{ + TRACE_link_srcdst_variable_set_with_time (MSG_get_clock(), src, dst, variable, value); +} + +/** \ingroup TRACE_user_variables + * \brief Add a value to the variable present in the links connecting source and destination. + * + * Same as #TRACE_link_variable_add, but instead of providing the + * name of link to be considered, provide the source and destination + * hosts. All links that are part of the route between source and + * destination will have the value passed as parameter added to + * the current value of the variable name to be considered. + * + * \param src The name of the source host for get route. + * \param dst The name of the destination host for get route. + * \param variable The name of the variable to be considered. + * \param value The value to be added to the variable. + * + * \see TRACE_link_variable_declare, TRACE_link_srcdst_variable_set, TRACE_link_srcdst_variable_sub + */ +void TRACE_link_srcdst_variable_add (const char *src, const char *dst, const char *variable, double value) +{ + TRACE_link_srcdst_variable_add_with_time (MSG_get_clock(), src, dst, variable, value); +} + +/** \ingroup TRACE_user_variables + * \brief Subtract a value from the variable present in the links connecting source and destination. + * + * Same as #TRACE_link_variable_sub, but instead of providing the + * name of link to be considered, provide the source and destination + * hosts. All links that are part of the route between source and + * destination will have the value passed as parameter subtracted from + * the current value of the variable name to be considered. + * + * \param src The name of the source host for get route. + * \param dst The name of the destination host for get route. + * \param variable The name of the variable to be considered. + * \param value The value to be subtracted from the variable. + * + * \see TRACE_link_variable_declare, TRACE_link_srcdst_variable_set, TRACE_link_srcdst_variable_add + */ +void TRACE_link_srcdst_variable_sub (const char *src, const char *dst, const char *variable, double value) +{ + TRACE_link_srcdst_variable_sub_with_time (MSG_get_clock(), src, dst, variable, value); +} + +/** \ingroup TRACE_user_variables + * \brief Set the value of the variable present in the links connecting source and destination at a given timestamp. + * + * Same as #TRACE_link_srcdst_variable_set, but let user specify + * the time used to trace it. Users can specify a time that + * is not the simulated clock time as defined by the core + * simulator. This allows a fine-grain control of time + * definition, but should be used with caution since the trace + * can be inconsistent if resource utilization traces are also traced. + * + * \param time The timestamp to be used to tag this change of value. + * \param src The name of the source host for get route. + * \param dst The name of the destination host for get route. + * \param variable The name of the variable to be considered. + * \param value The new value of the variable. + * + * \see TRACE_link_variable_declare, TRACE_link_srcdst_variable_add_with_time, TRACE_link_srcdst_variable_sub_with_time + */ +void TRACE_link_srcdst_variable_set_with_time (double time, const char *src, const char *dst, const char *variable, double value) +{ + instr_user_srcdst_variable (time, src, dst, variable, "LINK", value, INSTR_US_SET); +} + +/** \ingroup TRACE_user_variables + * \brief Add a value to the variable present in the links connecting source and destination at a given timestamp. + * + * Same as #TRACE_link_srcdst_variable_add, but let user specify + * the time used to trace it. Users can specify a time that + * is not the simulated clock time as defined by the core + * simulator. This allows a fine-grain control of time + * definition, but should be used with caution since the trace + * can be inconsistent if resource utilization traces are also traced. + * + * \param time The timestamp to be used to tag this change of value. + * \param src The name of the source host for get route. + * \param dst The name of the destination host for get route. + * \param variable The name of the variable to be considered. + * \param value The value to be added to the variable. + * + * \see TRACE_link_variable_declare, TRACE_link_srcdst_variable_set_with_time, TRACE_link_srcdst_variable_sub_with_time + */ +void TRACE_link_srcdst_variable_add_with_time (double time, const char *src, const char *dst, const char *variable, double value) +{ + instr_user_srcdst_variable (time, src, dst, variable, "LINK", value, INSTR_US_ADD); +} + +/** \ingroup TRACE_user_variables + * \brief Subtract a value from the variable present in the links connecting source and destination at a given timestamp. + * + * Same as #TRACE_link_srcdst_variable_sub, but let user specify + * the time used to trace it. Users can specify a time that + * is not the simulated clock time as defined by the core + * simulator. This allows a fine-grain control of time + * definition, but should be used with caution since the trace + * can be inconsistent if resource utilization traces are also traced. + * + * \param time The timestamp to be used to tag this change of value. + * \param src The name of the source host for get route. + * \param dst The name of the destination host for get route. + * \param variable The name of the variable to be considered. + * \param value The value to be subtracted from the variable. + * + * \see TRACE_link_variable_declare, TRACE_link_srcdst_variable_set_with_time, TRACE_link_srcdst_variable_add_with_time + */ +void TRACE_link_srcdst_variable_sub_with_time (double time, const char *src, const char *dst, const char *variable, double value) +{ + instr_user_srcdst_variable (time, src, dst, variable, "LINK", value, INSTR_US_SUB); +} + +/** \ingroup TRACE_user_variables + * \brief Get declared user link variables + * + * This function should be used to get link variables that were already + * declared with #TRACE_link_variable_declare or with #TRACE_link_variable_declare_with_color. + * + * \return A dynar with the declared link variables, must be freed with xbt_dynar_free. + */ +xbt_dynar_t TRACE_get_link_variables (void) +{ + return instr_dict_to_dynar (user_link_variables); } #endif /* HAVE_TRACING */