summaryrefslogtreecommitdiff
path: root/file-handler.c
diff options
context:
space:
mode:
Diffstat (limited to 'file-handler.c')
-rw-r--r--file-handler.c112
1 files changed, 0 insertions, 112 deletions
diff --git a/file-handler.c b/file-handler.c
deleted file mode 100644
index 760595c..0000000
--- a/file-handler.c
+++ /dev/null
@@ -1,112 +0,0 @@
-/* file-handler.c
- * Created: 2023-08-25
- * Author: Aryadev Chavali
- * Description: Implementations of writing and loading state from files
- */
-
-#include <stdio.h>
-#include <string.h>
-
-#include "./lib.h"
-
-#define CHUNK_SIZE 1024
-
-typedef struct Buffer
-{
- char *data;
- size_t used, available;
-} buffer_t;
-
-void buffer_init(buffer_t *buffer)
-{
- *buffer =
- (buffer_t){calloc(CHUNK_SIZE, sizeof(*buffer->data)), 0, CHUNK_SIZE};
-}
-
-void buffer_realloc(buffer_t *buffer, size_t new_size)
-{
- buffer->data = realloc(buffer->data, new_size);
- buffer->available = new_size;
-}
-
-void buffer_tighten(buffer_t *buffer)
-{
- buffer->data = realloc(buffer->data, buffer->used + 1);
- buffer->data[buffer->used] = '\0';
- buffer->available = buffer->used;
-}
-
-#define IS_DIGIT(c) (c <= '9' && c >= '0')
-
-bool load_from_file(state_t *state, const char *filepath)
-{
- // Read file completely
- FILE *fp = fopen(filepath, "r");
- if (!fp)
- return false;
-
- buffer_t buffer;
- buffer_init(&buffer);
- size_t acc = 0;
- size_t bytes_read = 0;
- while ((bytes_read = fread(buffer.data + acc, sizeof(*buffer.data),
- CHUNK_SIZE, fp)) != 0)
- {
- buffer.used += bytes_read;
- acc += bytes_read;
- buffer_realloc(&buffer, buffer.available + CHUNK_SIZE);
- }
- fclose(fp);
- buffer_tighten(&buffer);
-
- // first line is width
- state->dwidth = atoi(buffer.data);
- state->data = calloc(state->dwidth * state->dwidth, sizeof(*state->data));
- state->multiplier = state->window_len / state->dwidth;
-
- size_t line_size = strcspn(buffer.data, "\n");
- char *ptr = buffer.data + line_size + 1;
- size_t i = 0;
- for (ptr = strpbrk(ptr, "\n"); ptr && i < state->dwidth;
- ptr = strpbrk(ptr, "\n"), ++i)
- {
- if (ptr[1] == '\0')
- break;
- ++ptr;
- size_t j = 0;
- size_t line_size = strcspn(ptr, "\n");
- for (size_t lptr = 0; lptr < line_size;)
- {
- size_t end_of_digit = lptr;
- for (; IS_DIGIT(ptr[end_of_digit]); ++end_of_digit)
- continue;
-
- state->data[(i * state->dwidth) + j] = atoi(ptr + lptr);
-
- lptr = end_of_digit + 1;
- ++j;
- }
- ++ptr;
- }
-
- free(buffer.data);
- return true;
-}
-
-bool write_to_file(state_t *state, const char *filepath)
-{
- FILE *fp = fopen(filepath, "w");
- fprintf(fp, "%lu\n", state->dwidth);
- for (size_t i = 0; i < state->dwidth; ++i)
- {
- for (size_t j = 0; j < state->dwidth; ++j)
- {
- fprintf(fp, "%d", state->data[(i * state->dwidth) + j]);
- if (j != state->dwidth - 1)
- fprintf(fp, ",");
- }
- fprintf(fp, "\n");
- }
- fclose(fp);
- return true;
-}