From: Michael Tremer <michael.tremer@ipfire.org>
Date: Sun, 7 Jan 2018 20:21:16 +0000 (+0000)
Subject: database: Load networks from database
X-Git-Tag: 0.9.0~120
X-Git-Url: http://git.ipfire.org/?p=people%2Fms%2Flibloc.git;a=commitdiff_plain;h=a735a563386d03ce8cb82b7af10bc5aa21543d8b;hp=edb4ba7c17b1d0f09240626effb2476bc78f36b2

database: Load networks from database

Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>
---

diff --git a/src/database.c b/src/database.c
index 6d39937..f789c69 100644
--- a/src/database.c
+++ b/src/database.c
@@ -50,6 +50,10 @@ struct loc_database {
 	struct loc_database_network_node_v0* network_nodes_v0;
 	size_t network_nodes_count;
 
+	// Networks
+	struct loc_database_network_v0* networks_v0;
+	size_t networks_count;
+
 	struct loc_stringpool* pool;
 };
 
@@ -128,6 +132,29 @@ static int loc_database_read_network_nodes_section_v0(struct loc_database* db,
 	return 0;
 }
 
+static int loc_database_read_networks_section_v0(struct loc_database* db,
+		FILE* f, const struct loc_database_header_v0* header) {
+	off_t networks_offset  = be32toh(header->network_data_offset);
+	size_t networks_length = be32toh(header->network_data_length);
+
+	DEBUG(db->ctx, "Reading networks section from %jd (%zu bytes)\n",
+		networks_offset, networks_length);
+
+	if (networks_length > 0) {
+		db->networks_v0 = mmap(NULL, networks_length, PROT_READ,
+			MAP_SHARED, fileno(f), networks_offset);
+
+		if (db->networks_v0 == MAP_FAILED)
+			return -errno;
+	}
+
+	db->networks_count = networks_length / sizeof(*db->networks_v0);
+
+	INFO(db->ctx, "Read %zu networks from the database\n", db->networks_count);
+
+	return 0;
+}
+
 static int loc_database_read_header_v0(struct loc_database* db, FILE* f) {
 	struct loc_database_header_v0 header;
 
@@ -163,6 +190,11 @@ static int loc_database_read_header_v0(struct loc_database* db, FILE* f) {
 	if (r)
 		return r;
 
+	// Networks
+	r = loc_database_read_networks_section_v0(db, f, &header);
+	if (r)
+		return r;
+
 	return 0;
 }