X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/6760cb07d6b57be16928d95339d71e57c4e24f36..2d16ebcee6bde01575b4cd88a853e1ac1c2532bf:/src/gras/DataDesc/cbps.c diff --git a/src/gras/DataDesc/cbps.c b/src/gras/DataDesc/cbps.c deleted file mode 100644 index b4867fa90a..0000000000 --- a/src/gras/DataDesc/cbps.c +++ /dev/null @@ -1,404 +0,0 @@ -/* cbps - persistant states for callbacks */ - -/* Copyright (c) 2004, 2005, 2006, 2007, 2008, 2009, 2010. 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.h" -#include "gras/DataDesc/datadesc_private.h" -XBT_LOG_NEW_DEFAULT_SUBCATEGORY(gras_ddt_cbps, gras_ddt, - "callback persistant state"); - -typedef struct { - gras_datadesc_type_t type; - void *data; -} s_gras_cbps_elm_t, *gras_cbps_elm_t; - -typedef struct s_gras_cbps { - xbt_dynar_t lints; /* simple stack of long integers (easy interface) */ - - xbt_dict_t space; /* varname x dynar of gras_cbps_elm_t */ - xbt_dynar_t frames; /* of dynar of names defined within this frame - (and to pop when we leave it) */ - xbt_dynar_t globals; -} s_gras_cbps_t; - -gras_cbps_t gras_cbps_new(void) -{ - gras_cbps_t res; - - res = xbt_new(s_gras_cbps_t, 1); - - res->lints = xbt_dynar_new(sizeof(int), NULL); - res->space = xbt_dict_new(); - /* no leak, the content is freed manually on block_end */ - res->frames = xbt_dynar_new(sizeof(xbt_dynar_t), NULL); - res->globals = xbt_dynar_new(sizeof(char *), NULL); - - gras_cbps_block_begin(res); - - return res; -} - -void gras_cbps_free(gras_cbps_t * state) -{ - - xbt_dynar_free(&((*state)->lints)); - - gras_cbps_block_end(*state); - xbt_dict_free(&((*state)->space)); - xbt_dynar_free(&((*state)->frames)); - xbt_dynar_free(&((*state)->globals)); - - free(*state); - *state = NULL; -} - -void gras_cbps_reset(gras_cbps_t state) -{ - - xbt_dynar_reset(state->lints); - - xbt_dict_reset(state->space); - - xbt_dynar_reset(state->frames); - xbt_dynar_reset(state->globals); -} - -/** \brief Declare a new element in the PS, and give it a value. - * - * If an element of that - * name already exists, it is masked by the one given here, and will be - * seeable again only after a pop to remove the value this push adds. - */ -void -gras_cbps_v_push(gras_cbps_t ps, - const char *name, void *data, gras_datadesc_type_t ddt) -{ - - xbt_dynar_t varstack = NULL, frame; - gras_cbps_elm_t var; - char *varname = (char *) xbt_strdup(name); - xbt_ex_t e; - - DEBUG2("push(%s,%p)", name, (void *) data); - - TRY { - varstack = xbt_dict_get(ps->space, name); - } CATCH(e) { - if (e.category != mismatch_error) - RETHROW; - - DEBUG1("Create a new variable stack for '%s' into the space", name); - varstack = xbt_dynar_new(sizeof(gras_cbps_elm_t *), NULL); - xbt_dict_set(ps->space, varname, (void **) varstack, NULL); - xbt_ex_free(e); - /* leaking, you think? only if you do not close all the openned blocks ;) */ - } - - var = xbt_new0(s_gras_cbps_elm_t, 1); - var->type = ddt; - var->data = data; - - xbt_dynar_push(varstack, &var); - - xbt_dynar_pop(ps->frames, &frame); - DEBUG4("Push %s (%p @%p) into frame %p", varname, (void *) varname, - (void *) &varname, (void *) frame); - xbt_dynar_push(frame, &varname); - xbt_dynar_push(ps->frames, &frame); -} - -/** \brief Retrieve an element from the PS, and remove it from the PS. - * - * If it's not present in the current block, it will fail (throwing not_found) - * and not search in upper blocks since this denotes a programmation error. - */ -void -gras_cbps_v_pop(gras_cbps_t ps, - const char *name, gras_datadesc_type_t * ddt, void **res) -{ - xbt_dynar_t varstack=NULL, frame=NULL; - gras_cbps_elm_t var = NULL; - void *data = NULL; - xbt_ex_t e; - - DEBUG1("pop(%s)", name); - TRY { - varstack = xbt_dict_get(ps->space, name); - } CATCH(e) { - if (e.category != mismatch_error) - RETHROW; - - xbt_ex_free(e); - THROW1(not_found_error, 1, "Asked to pop the non-existant %s", name); - } - xbt_dynar_pop(varstack, &var); - - if (!xbt_dynar_length(varstack)) { - DEBUG1("Last incarnation of %s poped. Kill it", name); - xbt_dict_remove(ps->space, name); - xbt_dynar_free(&varstack); - } - - if (ddt) - *ddt = var->type; - data = var->data; - - free(var); - - xbt_dynar_pop(ps->frames, &frame); - { - int l = xbt_dynar_length(frame); - - while (l--) { - char *_name = NULL; - - _name = xbt_dynar_get_as(frame, l, char *); - if (!strcmp(name, _name)) { - xbt_dynar_remove_at(frame, l, &_name); - free(_name); - break; - } - } - } - xbt_dynar_push(ps->frames, &frame); - - *res = data; -} - -/** \brief Change the value of an element in the PS. - * - * If it's not present in the current block, look in the upper ones. - * If it's not present in any of them, modify in the globals - * If not present there neither, the code may segfault (Oli?). - * - * Once a reference to an element of that name is found somewhere in the PS, - * its value is changed. - */ -void -gras_cbps_v_set(gras_cbps_t ps, - const char *name, void *data, gras_datadesc_type_t ddt) -{ - - xbt_dynar_t dynar = NULL; - gras_cbps_elm_t elm = NULL; - - DEBUG1("set(%s)", name); - dynar = xbt_dict_get_or_null(ps->space, name); - - if (dynar == NULL) { - dynar = xbt_dynar_new(sizeof(gras_cbps_elm_t), NULL); - xbt_dict_set(ps->space, name, (void **) dynar, NULL); - - elm = xbt_new0(s_gras_cbps_elm_t, 1); - xbt_dynar_push(ps->globals, &name); - } else { - xbt_dynar_pop(dynar, &elm); - } - - elm->type = ddt; - elm->data = data; - - xbt_dynar_push(dynar, &elm); - -} - -/** \brief Get the value of an element in the PS without modifying it. - * - * (note that you get the content of the data struct and not a copy to it) - * If it's not present in the current block, look in the upper ones. - * If it's not present in any of them, look in the globals - * If not present there neither, the code may segfault (Oli?). - */ -void *gras_cbps_v_get(gras_cbps_t ps, const char *name, - /* OUT */ gras_datadesc_type_t * ddt) -{ - - xbt_dynar_t dynar = NULL; - gras_cbps_elm_t elm = NULL; - - DEBUG1("get(%s)", name); - dynar = xbt_dict_get(ps->space, name); - xbt_dynar_pop(dynar, &elm); - xbt_dynar_push(dynar, &elm); - - if (ddt) { - *ddt = elm->type; - } - - return elm->data; - -} - -/** \brief Begins a new block. - * - * Blocks are usefull to remove a whole set of declarations you don't even know - * - * E.g., they constitute an elegent solution to recursive data structures. - * - * push/pop may be used in some cases for that, but if your recursive data - * struct contains other structs needing themselves callbacks, you have to - * use block_{begin,end} to do the trick. - */ - -void gras_cbps_block_begin(gras_cbps_t ps) -{ - - xbt_dynar_t dynar = NULL; - - DEBUG0(">>> Block begin"); - dynar = xbt_dynar_new(sizeof(char *), NULL); - xbt_dynar_push(ps->frames, &dynar); -} - -/** \brief End the current block, and go back to the upper one. */ -void gras_cbps_block_end(gras_cbps_t ps) -{ - - xbt_dynar_t frame = NULL; - unsigned int cursor = 0; - char *name = NULL; - - xbt_assert0(xbt_dynar_length(ps->frames), - "More block_end than block_begin"); - xbt_dynar_pop(ps->frames, &frame); - - xbt_dynar_foreach(frame, cursor, name) { - - xbt_dynar_t varstack = NULL; - gras_cbps_elm_t var = NULL; - - DEBUG2("Get ride of %s (%p)", name, (void *) name); - varstack = xbt_dict_get(ps->space, name); - xbt_dynar_pop(varstack, &var); - - if (!xbt_dynar_length(varstack)) { - xbt_dict_remove(ps->space, name); - xbt_dynar_free_container(&varstack); /*already empty, save a test ;) */ - } - - if (var->data) - free(var->data); - free(var); - free(name); - } - xbt_dynar_free_container(&frame); /* we just emptied it */ - DEBUG0("<<< Block end"); -} - - -/** \brief Push a new integer value into the cbps. */ -void gras_cbps_i_push(gras_cbps_t ps, int val) -{ - DEBUG1("push %d as a size", val); - xbt_dynar_push_as(ps->lints, int, val); -} - -/** \brief Pop the lastly pushed integer value from the cbps. */ -int gras_cbps_i_pop(gras_cbps_t ps) -{ - int ret; - - xbt_assert0(xbt_dynar_length(ps->lints) > 0, - "gras_cbps_i_pop: no value to pop"); - ret = xbt_dynar_pop_as(ps->lints, int); - DEBUG1("pop %d as a size", ret); - return ret; -} - -/** \brief Generic cb returning the lastly pushed value - * - * Used by \ref gras_datadesc_ref_pop_arr - */ -int gras_datadesc_cb_pop(gras_datadesc_type_t ignored, gras_cbps_t vars, - void *data) -{ - return gras_cbps_i_pop(vars); -} - -/* ************************* */ -/* **** PUSHy callbacks **** */ -/* ************************* */ - -/** \brief Cb to push an integer. Must be attached to the field you want to push */ -void gras_datadesc_cb_push_int(gras_datadesc_type_t ignored, gras_cbps_t vars, - void *data) -{ - int *i = (int *) data; - gras_cbps_i_push(vars, (int) *i); -} - -/** \brief Cb to push an unsigned integer. Must be attached to the field you want to push */ -void gras_datadesc_cb_push_uint(gras_datadesc_type_t ignored, - gras_cbps_t vars, void *data) -{ - unsigned int *i = (unsigned int *) data; - gras_cbps_i_push(vars, (int) *i); -} - -/** \brief Cb to push an long integer. Must be attached to the field you want to push - */ -void gras_datadesc_cb_push_lint(gras_datadesc_type_t ignored, - gras_cbps_t vars, void *data) -{ - long int *i = (long int *) data; - gras_cbps_i_push(vars, (int) *i); -} - -/** \brief Cb to push an unsigned long integer. Must be attached to the field you want to push - */ -void gras_datadesc_cb_push_ulint(gras_datadesc_type_t ignored, - gras_cbps_t vars, void *data) -{ - unsigned long int *i = (unsigned long int *) data; - gras_cbps_i_push(vars, (int) *i); -} - -/* ************************************ */ -/* **** PUSHy multiplier callbacks **** */ -/* ************************************ */ -/** \brief Cb to push an integer as multiplier. Must be attached to the field you want to push */ -void gras_datadesc_cb_push_int_mult(gras_datadesc_type_t ignored, - gras_cbps_t vars, void *data) -{ - int old = *(int *) data; - int new = gras_cbps_i_pop(vars); - DEBUG2("push %d x %d as a size", old, new); - gras_cbps_i_push(vars, old * new); -} - -/** \brief Cb to push an unsigned integer as multiplier. Must be attached to the field you want to push */ -void gras_datadesc_cb_push_uint_mult(gras_datadesc_type_t ignored, - gras_cbps_t vars, void *data) -{ - unsigned int old = *(unsigned int *) data; - unsigned int new = gras_cbps_i_pop(vars); - - DEBUG2("push %d x %d as a size", old, new); - gras_cbps_i_push(vars, (int) (old * new)); -} - -/** \brief Cb to push an long integer as multiplier. Must be attached to the field you want to push - */ -void gras_datadesc_cb_push_lint_mult(gras_datadesc_type_t ignored, - gras_cbps_t vars, void *data) -{ - long int i = *(long int *) data; - i *= gras_cbps_i_pop(vars); - gras_cbps_i_push(vars, (int) i); -} - -/** \brief Cb to push an unsigned long integer as multiplier. Must be attached to the field you want to push - */ -void gras_datadesc_cb_push_ulint_mult(gras_datadesc_type_t ignored, - gras_cbps_t vars, void *data) -{ - unsigned long int old = *(unsigned long int *) data; - unsigned long int new = gras_cbps_i_pop(vars); - - DEBUG2("push %ld x %ld as a size", old, new); - gras_cbps_i_push(vars, (int) (old * new)); -}