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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,213 @@ | ||
| /* | ||
| This file is part of Etripator, | ||
| copyright (c) 2009--2023 Vincent Cruz. | ||
| Etripator is free software: you can redistribute it and/or modify | ||
| it under the terms of the GNU General Public License as published by | ||
| the Free Software Foundation, either version 3 of the License, or | ||
| (at your option) any later version. | ||
| Etripator is distributed in the hope that it will be useful, | ||
| but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
| GNU General Public License for more details. | ||
| You should have received a copy of the GNU General Public License | ||
| along with Etripator. If not, see <http://www.gnu.org/licenses/>. | ||
| */ | ||
| #include "comment.h" | ||
| #include "message.h" | ||
|
|
||
| #include <jansson.h> | ||
| #include "jsonhelpers.h" | ||
|
|
||
| #define COMMENT_ARRAY_INC 16 | ||
|
|
||
| /** | ||
| * Comment repository. | ||
| */ | ||
| struct comment_repository_impl { | ||
| size_t size; /**< Size of comment repository */ | ||
| size_t last; /**< Last element in the repository */ | ||
| comment_t *comments; /**< Comments */ | ||
| }; | ||
|
|
||
| /** | ||
| * Get comment index by its address. | ||
| * \param [in] repository Coment repository. | ||
| * \param [in] logical Logical address. | ||
| * \param [in] page Memory page. | ||
| * \return comment index or -1 if the label was not found. | ||
| */ | ||
| static int comment_repository_index(comment_repository_t* repository, uint16_t logical, uint8_t page) { | ||
| size_t i; | ||
| for(i=0; i<repository->last; i++) { | ||
| if( (repository->comments[i].page == page) && | ||
| (repository->comments[i].logical == logical) ) { | ||
| return (int)i; | ||
| } | ||
| } | ||
| return -1; | ||
| } | ||
|
|
||
| /* Create comment repository. */ | ||
| comment_repository_t* comment_repository_create() { | ||
| comment_repository_t *repository; | ||
| repository = (comment_repository_t*)malloc(sizeof(comment_repository_t)); | ||
| if(repository == NULL) { | ||
| ERROR_MSG("Failed to create comment repository: %s", strerror(errno)); | ||
| } else { | ||
| repository->last = 0; | ||
| repository->comments = NULL; | ||
|
|
||
| repository->size = COMMENT_ARRAY_INC; | ||
| repository->comments = (comment_t*)malloc(repository->size * sizeof(comment_t)); | ||
| if(repository->comments == NULL) { | ||
| ERROR_MSG("Failed to create comments: %s", strerror(errno)); | ||
| comment_repository_destroy(repository); | ||
| free(repository); | ||
| repository = NULL; | ||
| } | ||
| } | ||
| return repository; | ||
| } | ||
|
|
||
| /* Release comment repository resources. */ | ||
| void comment_repository_destroy(comment_repository_t* repository) { | ||
| repository->size = 0; | ||
| repository->last = 0; | ||
|
|
||
| if(repository->comments != NULL) { | ||
| for(int i=0; i<repository->last; i++) { | ||
| if(repository->comments[i].text) { | ||
| free(repository->comments[i].text); | ||
| } | ||
| } | ||
| free(repository->comments); | ||
| repository->comments = NULL; | ||
| } | ||
| } | ||
|
|
||
| /* Add comment to repository. */ | ||
| int comment_repository_add(comment_repository_t* repository, uint16_t logical, uint8_t page, const char *text) { | ||
| int ret = 1; | ||
| int index = comment_repository_index(repository, logical, page); | ||
| if(index >= 0) { | ||
| WARNING_MSG("Duplicate comment for logical address $%04x in page $%02x", logical, page); | ||
| } else { | ||
| /* Expand arrays if necessary */ | ||
| if(repository->last >= repository->size) { | ||
| comment_t *ptr; | ||
| repository->size += COMMENT_ARRAY_INC; | ||
| ptr = (comment_t*)realloc(repository->comments, repository->size * sizeof(comment_t)); | ||
| if(ptr == NULL) { | ||
| comment_repository_destroy(repository); | ||
| ret = 0; | ||
| } else { | ||
| repository->comments = ptr; | ||
| } | ||
| } | ||
| if(ret != 0) { | ||
| /* Push addresses & text */ | ||
| repository->comments[repository->last].logical = logical; | ||
| repository->comments[repository->last].page = page; | ||
| repository->comments[repository->last].text = strdup(text); | ||
|
|
||
| ++repository->last; | ||
| } | ||
| } | ||
| return ret; | ||
| } | ||
|
|
||
| /* Find a comment by its address. */ | ||
| int comment_repository_find(comment_repository_t* repository, uint16_t logical, uint8_t page, comment_t *out) { | ||
| int index = comment_repository_index(repository, logical, page); | ||
| if(index < 0) { | ||
| memset(out, 0, sizeof(comment_t)); | ||
| return 0; | ||
| } | ||
| memcpy(out, &repository->comments[index], sizeof(comment_t)); | ||
| return 1; | ||
| } | ||
|
|
||
| /* Get the number of comments stored in the repository. */ | ||
| int comment_repository_size(comment_repository_t* repository) { | ||
| return repository ? (int)repository->last : 0; | ||
| } | ||
|
|
||
| /* Retrieve the comment at the specified index. */ | ||
| int comment_repository_get(comment_repository_t* repository, int index, comment_t *out) { | ||
| if((repository != NULL) && ((index >= 0) && (index < (int)repository->last))) { | ||
| memcpy(out, &repository->comments[index], sizeof(comment_t)); | ||
| return 1; | ||
| } else { | ||
| memset(out, 0, sizeof(comment_t)); | ||
| return 0; | ||
| } | ||
| } | ||
|
|
||
| /* Delete comments. */ | ||
| int comment_repository_delete(comment_repository_t* repository, uint16_t first, uint16_t end, uint8_t page) { | ||
| size_t i; | ||
| for(i=0; i<repository->last; i++) { | ||
| if( (repository->comments[i].page == page) && | ||
| (repository->comments[i].logical >= first) && | ||
| (repository->comments[i].logical < end) ) { | ||
| if(repository->last) { | ||
| repository->last--; | ||
| if(repository->comments[i].text) { | ||
| free(repository->comments[i].text); | ||
| } | ||
| memcpy(&repository->comments[i], &repository->comments[repository->last], sizeof(comment_t)); | ||
| i--; | ||
| } | ||
| } | ||
| } | ||
| return 1;} | ||
|
|
||
| /* Load comments from file. */ | ||
| int comment_repository_load(const char* filename, comment_repository_t* repository) { | ||
| json_t* root; | ||
| json_error_t err; | ||
| json_t* value; | ||
| int ret = 0, index = 0; | ||
| root = json_load_file(filename, 0, &err); | ||
| if(!root) { | ||
| ERROR_MSG("Failed to parse %s: %s", filename, err.text); | ||
| } else { | ||
| if(!json_is_array(root)) { | ||
| ERROR_MSG("Array expected."); | ||
| } else for (index = 0, ret = 1; ret && (index < json_array_size(root)) && (value = json_array_get(root, index)); index++) { | ||
| ret = 0; | ||
| if(!json_is_object(value)) { | ||
| ERROR_MSG("Expected object."); | ||
| } else { | ||
| int num; | ||
| // logical | ||
| json_t *tmp = json_object_get(value, "logical"); | ||
| if(!json_validate_int(tmp, &num)) { | ||
| ERROR_MSG("Invalid or missing logical address."); | ||
| } else if((num < 0) || (num > 0xffff)) { | ||
| ERROR_MSG("Logical address out of range."); | ||
| } else { | ||
| uint16_t logical = (uint16_t)num; | ||
| // page | ||
| tmp = json_object_get(value, "page"); | ||
| if(!json_validate_int(tmp, &num)) { | ||
| ERROR_MSG("Invalid or missing page."); | ||
| } else { | ||
| // text (same format as section/label description) | ||
| const char* text = json_load_description(value, "text"); | ||
| if((num < 0) || (num > 0xff)) { | ||
| ERROR_MSG("Page value out of range."); | ||
| } else if(comment_repository_add(repository, logical, (uint8_t)num, text)) { | ||
| ret = 1; | ||
| } | ||
| } | ||
| } | ||
| } | ||
| } | ||
| json_decref(root); | ||
| } | ||
| return ret; | ||
| } |
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