feat: Initial commit

Lab06/sort.c

@@ -0,0 +1,85 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <pthread.h>
+#include <string.h>
+#define BUF_SIZE 2048 
+
+int **matrix;
+int lines[100];
+char filenames[2][10] = {"foo", "bar"};
+
+int cmpfunc (const void * a, const void * b) {
+   return ( *(int*)a - *(int*)b );
+}
+
+int count_lines(FILE* file)
+{
+    char buf[BUF_SIZE];
+    int counter = 0;
+    for(;;)
+    {
+        size_t res = fread(buf, 1, BUF_SIZE, file);
+        if (ferror(file))
+            return -1;
+
+        int i;
+        for(i = 0; i < res; i++)
+            if (buf[i] == '\n')
+                counter++;
+
+        if (feof(file))
+            break;
+    }
+
+    return counter;
+}
+
+
+void *sort(void * vargs) {
+	int num = (int) vargs;
+
+	FILE * fin = fopen(filenames[num], "r");
+	lines[num] = count_lines(fin);
+	fseek(fin,0L,SEEK_SET);
+	matrix[num] = malloc(lines[num]*sizeof(int));
+	for (int i = 0; i < lines[num]; i++) fscanf(fin, "%d", &matrix[num][i]);
+	fclose(fin);
+
+	qsort(matrix[num], lines[num], sizeof(int), cmpfunc);
+	return NULL;
+}
+
+int main(int argc, char ** argv) {
+	pthread_t tids[2];
+	int tmp[1000], res[1000], cur_len;
+	matrix = malloc(2*sizeof(int *));
+
+	pthread_create(&tids[0], NULL, sort, (void *)0);
+	pthread_create(&tids[1], NULL, sort, (void *)1);
+
+	for (int i = 0; i<2; i++) {
+		pthread_join(tids[i], NULL);
+		
+		if (i == 0) {
+			memcpy(res, matrix[i], sizeof(int)*lines[i]);
+			cur_len = lines[i];
+			continue;
+		}
+
+		int a = 0, b = 0, j = 0;
+		while (a<cur_len && b<lines[i]) {
+			tmp[j++] = (res[a] > matrix[i][b]) ? matrix[i][b++] : res[a++];
+		}
+		while (a<cur_len) tmp[j++] = res[a++];
+		while (b<lines[i]) tmp[j++] = matrix[i][b++];
+		cur_len += lines[i];
+		memcpy(res, tmp, sizeof(int)*cur_len);
+	}
+
+	for (int i = 0; i<cur_len;i++) {
+		printf("%d ",res[i]);
+	}
+
+	return 0;
+}
+