| /* |
| * YASM associated data storage (libyasm internal use) |
| * |
| * Copyright (C) 2003-2007 Peter Johnson |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND OTHER CONTRIBUTORS ``AS IS'' |
| * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR OTHER CONTRIBUTORS BE |
| * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
| * POSSIBILITY OF SUCH DAMAGE. |
| */ |
| #include "util.h" |
| |
| #include "coretype.h" |
| #include "assocdat.h" |
| |
| |
| typedef struct assoc_data_item { |
| const yasm_assoc_data_callback *callback; |
| void *data; |
| } assoc_data_item; |
| |
| struct yasm__assoc_data { |
| assoc_data_item *vector; |
| size_t size; |
| size_t alloc; |
| }; |
| |
| |
| yasm__assoc_data * |
| yasm__assoc_data_create(void) |
| { |
| yasm__assoc_data *assoc_data = yasm_xmalloc(sizeof(yasm__assoc_data)); |
| |
| assoc_data->size = 0; |
| assoc_data->alloc = 2; |
| assoc_data->vector = yasm_xmalloc(assoc_data->alloc * |
| sizeof(assoc_data_item)); |
| |
| return assoc_data; |
| } |
| |
| void * |
| yasm__assoc_data_get(yasm__assoc_data *assoc_data, |
| const yasm_assoc_data_callback *callback) |
| { |
| size_t i; |
| |
| if (!assoc_data) |
| return NULL; |
| |
| for (i=0; i<assoc_data->size; i++) { |
| if (assoc_data->vector[i].callback == callback) |
| return assoc_data->vector[i].data; |
| } |
| return NULL; |
| } |
| |
| yasm__assoc_data * |
| yasm__assoc_data_add(yasm__assoc_data *assoc_data_arg, |
| const yasm_assoc_data_callback *callback, void *data) |
| { |
| yasm__assoc_data *assoc_data; |
| assoc_data_item *item = NULL; |
| size_t i; |
| |
| /* Create a new assoc_data if necessary */ |
| if (assoc_data_arg) |
| assoc_data = assoc_data_arg; |
| else |
| assoc_data = yasm__assoc_data_create(); |
| |
| /* See if there's already assocated data for this callback */ |
| for (i=0; i<assoc_data->size; i++) { |
| if (assoc_data->vector[i].callback == callback) |
| item = &assoc_data->vector[i]; |
| } |
| |
| /* No? Then append a new one */ |
| if (!item) { |
| assoc_data->size++; |
| if (assoc_data->size > assoc_data->alloc) { |
| assoc_data->alloc *= 2; |
| assoc_data->vector = |
| yasm_xrealloc(assoc_data->vector, |
| assoc_data->alloc * sizeof(assoc_data_item)); |
| } |
| item = &assoc_data->vector[assoc_data->size-1]; |
| item->callback = callback; |
| item->data = NULL; |
| } |
| |
| /* Delete existing data (if any) */ |
| if (item->data && item->data != data) |
| item->callback->destroy(item->data); |
| |
| item->data = data; |
| |
| return assoc_data; |
| } |
| |
| void |
| yasm__assoc_data_destroy(yasm__assoc_data *assoc_data) |
| { |
| size_t i; |
| |
| if (!assoc_data) |
| return; |
| |
| for (i=0; i<assoc_data->size; i++) |
| assoc_data->vector[i].callback->destroy(assoc_data->vector[i].data); |
| yasm_xfree(assoc_data->vector); |
| yasm_xfree(assoc_data); |
| } |
| |
| void |
| yasm__assoc_data_print(const yasm__assoc_data *assoc_data, FILE *f, |
| int indent_level) |
| { |
| /*TODO*/ |
| } |