+// Cytore Definitions {{{
+struct PackageValue :
+ Cytore::Block
+{
+ Cytore::Offset<void> reserved_;
+ Cytore::Offset<PackageValue> next_;
+
+ uint32_t index_ : 23;
+ uint32_t subscribed_ : 1;
+ uint32_t : 8;
+
+ int32_t first_;
+ int32_t last_;
+
+ uint16_t vhash_;
+ uint16_t nhash_;
+
+ char version_[8];
+ char name_[];
+};
+
+struct MetaValue :
+ Cytore::Block
+{
+ Cytore::Offset<void> reserved_;
+ Cytore::Offset<PackageValue> packages_[1 << 16];
+};
+
+static Cytore::File<MetaValue> MetaFile_;
+// }}}
+// Cytore Helper Functions {{{
+static PackageValue *PackageFind(const char *name, size_t length, Cytore::Offset<PackageValue> *cache = NULL) {
+ SplitHash nhash = { hashlittle(name, length) };
+
+ PackageValue *metadata;
+
+ Cytore::Offset<PackageValue> *offset(&MetaFile_->packages_[nhash.u16[0]]);
+ offset: if (offset->IsNull()) {
+ *offset = MetaFile_.New<PackageValue>(length + 1);
+ metadata = &MetaFile_.Get(*offset);
+
+ memcpy(metadata->name_, name, length + 1);
+ metadata->nhash_ = nhash.u16[1];
+ } else {
+ metadata = &MetaFile_.Get(*offset);
+
+ if (metadata->nhash_ != nhash.u16[1] || strncmp(metadata->name_, name, length + 1) != 0) {
+ offset = &metadata->next_;
+ goto offset;
+ }
+ }
+
+ if (cache != NULL)
+ *cache = *offset;
+
+ return metadata;
+}
+
+static void PackageImport(const void *key, const void *value, void *context) {
+ char buffer[1024];
+ if (!CFStringGetCString((CFStringRef) key, buffer, sizeof(buffer), kCFStringEncodingUTF8)) {
+ NSLog(@"failed to import package %@", key);
+ return;
+ }
+
+ PackageValue *metadata(PackageFind(buffer, strlen(buffer)));
+ NSDictionary *package((NSDictionary *) value);
+
+ if (NSNumber *subscribed = [package objectForKey:@"IsSubscribed"])
+ if ([subscribed boolValue])
+ metadata->subscribed_ = true;
+
+ if (NSDate *date = [package objectForKey:@"FirstSeen"]) {
+ time_t time([date timeIntervalSince1970]);
+ if (metadata->first_ > time || metadata->first_ == 0)
+ metadata->first_ = time;
+ }
+
+ if (NSDate *date = [package objectForKey:@"LastSeen"]) {
+ time_t time([date timeIntervalSince1970]);
+ if (metadata->last_ < time || metadata->last_ == 0) {
+ metadata->last_ = time;
+ goto last;
+ }
+ } else if (metadata->last_ == 0) last: {
+ NSString *version([package objectForKey:@"LastVersion"]);
+ if (CFStringGetCString((CFStringRef) version, buffer, sizeof(buffer), kCFStringEncodingUTF8)) {
+ size_t length(strlen(buffer));
+ uint16_t vhash(hashlittle(buffer, length));
+
+ size_t capped(std::min<size_t>(8, length));
+ char *latest(buffer + length - capped);
+
+ strncpy(metadata->version_, latest, sizeof(metadata->version_));
+ metadata->vhash_ = vhash;
+ }
+ }
+}
+// }}}
+
projects / cydia.git / blobdiff