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| author | shess@chromium.org <shess@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98> | 2011-03-08 19:10:05 +0000 |
|---|---|---|
| committer | shess@chromium.org <shess@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98> | 2011-03-08 19:10:05 +0000 |
| commit | eeb0af285a61c37c0fbcb046174bf29741324a08 (patch) | |
| tree | 2dc7dc0ca940cd7d86bd934626ed8123017e196e /chrome/browser/safe_browsing/prefix_set.h | |
| parent | 11901ef2cd6ef17b08116d3dc19d03e9be87dd25 (diff) | |
| download | chromium_src-eeb0af285a61c37c0fbcb046174bf29741324a08.zip chromium_src-eeb0af285a61c37c0fbcb046174bf29741324a08.tar.gz chromium_src-eeb0af285a61c37c0fbcb046174bf29741324a08.tar.bz2 | |
safe_browsing::PrefixSet persistence code.
Just the ability to read/write the data structure to a file. File
format is a simple header, the contents of the vectors, and a
checksum.
BUG=71832
TEST=none
Review URL: http://codereview.chromium.org/6625002
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@77314 0039d316-1c4b-4281-b951-d872f2087c98
Diffstat (limited to 'chrome/browser/safe_browsing/prefix_set.h')
| -rw-r--r-- | chrome/browser/safe_browsing/prefix_set.h | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/chrome/browser/safe_browsing/prefix_set.h b/chrome/browser/safe_browsing/prefix_set.h index cb2cd9f..246beea 100644 --- a/chrome/browser/safe_browsing/prefix_set.h +++ b/chrome/browser/safe_browsing/prefix_set.h @@ -37,8 +37,7 @@ // 2^16 apart, which would need 512k (versus 256k to store the raw // data). // -// TODO(shess): Write serialization code. Something like this should -// work: +// The on-disk format looks like: // 4 byte magic number // 4 byte version number // 4 byte |index_.size()| @@ -55,6 +54,8 @@ #include "chrome/browser/safe_browsing/safe_browsing_util.h" +class FilePath; + namespace safe_browsing { class PrefixSet { @@ -65,6 +66,10 @@ class PrefixSet { // |true| if |prefix| was in |prefixes| passed to the constructor. bool Exists(SBPrefix prefix) const; + // Persist the set on disk. + static PrefixSet* LoadFile(const FilePath& filter_name); + bool WriteFile(const FilePath& filter_name) const; + // Regenerate the vector of prefixes passed to the constructor into // |prefixes|. Prefixes will be added in sorted order. void GetPrefixes(std::vector<SBPrefix>* prefixes); @@ -78,6 +83,11 @@ class PrefixSet { // for |Exists()| under control. static const size_t kMaxRun = 100; + // Helper for |LoadFile()|. Steals the contents of |index| and + // |deltas| using |swap()|. + PrefixSet(std::vector<std::pair<SBPrefix,size_t> > *index, + std::vector<uint16> *deltas); + // Top-level index of prefix to offset in |deltas_|. Each pair // indicates a base prefix and where the deltas from that prefix // begin in |deltas_|. The deltas for a pair end at the next pair's |