1 files changed, 92 insertions, 0 deletions
diff --git a/src/links-outgoing-to-incoming.c b/src/links-outgoing-to-incoming.c
new file mode 100644
index 0000000..2fd853a
--- /dev/null
+++ b/src/links-outgoing-to-incoming.c
@@ -0,0 +1,92 @@
+#include <assert.h>
+#include <ctype.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/types.h>
+
+
+typedef __uint32_t art_id;
+
+
+int main()
+{
+	FILE *in_file;
+	FILE *out_file;
+
+	art_id titles;
+
+	art_id **linko;
+	art_id *linkos;
+
+	art_id **linki;
+	art_id *linkis;
+
+	art_id link_titles_done = 0;
+
+	art_id i;
+
+
+	/*
+	 * Read all outgoing links into memory
+	 */
+
+	in_file = fopen("links-outgoing.bin", "rb");
+
+	fread(&titles, sizeof(titles), 1, in_file);
+
+	linko = malloc(titles * sizeof(art_id*));
+	linkos = malloc(titles * sizeof(art_id));
+
+	for (i = 0; i < titles; i++) {
+		art_id j;
+
+		fread(&linkos[i], sizeof(linkos[i]), 1, in_file);
+
+		linko[i] = malloc(linkos[i] * sizeof(linko[i][0]));
+
+		for (j = 0; j < linkos[i]; j++) {
+			fread(&linko[i][j], sizeof(linko[i][j]), 1, in_file);
+		}
+	}
+	fclose(in_file);
+
+	printf("Outgoing links read.\n");
+
+
+
+	linki = malloc(titles * sizeof(art_id*));
+	linkis = malloc(titles * sizeof(art_id));
+
+	for (i = 0; i < titles; i++) {
+		art_id j;
+
+		for (j = 0; j < linkos[i]; j++) {
+			art_id x = linko[i][j];
+
+			linkis[x]++;
+			linki[x] = realloc(linki[x], linkis[x] * sizeof(linki[x][0]));
+
+			linki[x][linkis[x] - 1] = i;
+		}
+	}
+
+	printf("Links turned upside down.\n");
+
+
+
+	out_file = fopen("links-incoming.bin", "wb");
+	fwrite(&titles, sizeof(titles), 1, out_file);
+	for (i = 0; i < titles; i++) {
+		art_id j;
+
+		fwrite(&linkis[i], sizeof(linkis[i]), 1, out_file);
+
+		for (j = 0; j < linkis[i]; j++) {
+			fwrite(&linki[i][j], sizeof(linki[i][j]), 1, out_file);
+		}
+	}
+	fclose(out_file);
+
+	printf("Incoming links written.\n");
+}