From: Michael Tremer <michael.tremer@ipfire.org>
Date: Tue, 12 Dec 2017 13:29:10 +0000 (+0000)
Subject: database: Save time when the database was created
X-Git-Tag: 0.9.0~171
X-Git-Url: http://git.ipfire.org/?p=people%2Fms%2Flibloc.git;a=commitdiff_plain;h=96ea74a5181ddef4b3509fedb143f9be945296ef

database: Save time when the database was created

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

diff --git a/src/database.c b/src/database.c
index a263d02..f51931a 100644
--- a/src/database.c
+++ b/src/database.c
@@ -22,6 +22,7 @@
 #include <stdlib.h>
 #include <string.h>
 #include <sys/types.h>
+#include <time.h>
 #include <unistd.h>
 
 #include <loc/libloc.h>
@@ -38,6 +39,7 @@ struct loc_database {
 
 	FILE* file;
 	unsigned int version;
+	time_t created_at;
 	off_t vendor;
 	off_t description;
 
@@ -57,6 +59,9 @@ LOC_EXPORT int loc_database_new(struct loc_ctx* ctx, struct loc_database** datab
 	db->ctx = loc_ref(ctx);
 	db->refcount = 1;
 
+	// Save creation time
+	db->created_at = time(NULL);
+
 	DEBUG(db->ctx, "Database allocated at %p\n", db);
 
 	// Create string pool
@@ -114,6 +119,10 @@ LOC_EXPORT struct loc_database* loc_database_unref(struct loc_database* db) {
 	return NULL;
 }
 
+LOC_EXPORT time_t loc_database_created_at(struct loc_database* db) {
+	return db->created_at;
+}
+
 LOC_EXPORT const char* loc_database_get_vendor(struct loc_database* db) {
 	return loc_stringpool_get(db->pool, db->vendor);
 }
@@ -274,6 +283,7 @@ static int loc_database_read_header_v0(struct loc_database* db) {
 	}
 
 	// Copy over data
+	db->created_at  = be64toh(header.created_at);
 	db->vendor      = ntohl(header.vendor);
 	db->description = ntohl(header.description);
 
@@ -396,6 +406,7 @@ LOC_EXPORT int loc_database_write(struct loc_database* db, FILE* f) {
 
 	// Make the header
 	struct loc_database_header_v0 header;
+	header.created_at  = htobe64(db->created_at);
 	header.vendor      = htonl(db->vendor);
 	header.description = htonl(db->description);
 
diff --git a/src/database.h b/src/database.h
index 41142ab..407abcb 100644
--- a/src/database.h
+++ b/src/database.h
@@ -30,6 +30,7 @@ int loc_database_open(struct loc_ctx* ctx, struct loc_database** database, FILE*
 struct loc_database* loc_database_ref(struct loc_database* db);
 struct loc_database* loc_database_unref(struct loc_database* db);
 
+time_t loc_database_created_at(struct loc_database* db);
 const char* loc_database_get_vendor(struct loc_database* db);
 int loc_database_set_vendor(struct loc_database* db, const char* vendor);
 const char* loc_database_get_description(struct loc_database* db);
diff --git a/src/libloc.sym b/src/libloc.sym
index 175c3fa..3469290 100644
--- a/src/libloc.sym
+++ b/src/libloc.sym
@@ -11,6 +11,7 @@ global:
 	# Database
 	loc_database_add_as;
 	loc_database_count_as;
+	loc_database_created_at;
 	loc_database_get_description;
 	loc_database_get_vendor;
 	loc_database_new;
diff --git a/src/loc/format.h b/src/loc/format.h
index e6f6dba..4a49628 100644
--- a/src/loc/format.h
+++ b/src/loc/format.h
@@ -32,6 +32,9 @@ struct loc_database_magic {
 };
 
 struct loc_database_header_v0 {
+	// UNIX timestamp when the database was created
+	uint64_t created_at;
+
 	// Vendor who created the database
 	uint32_t vendor;