Function hcache_init

src/engine/hcache.cpp:182–352

void hcache_init()
{
    FILE       * f;
    OBJECT     * version = 0;
    int          header_count = 0;
    const char * hcachename;

    if ( hcachehash )
        return;

    hcachehash = hashinit( sizeof( HCACHEDATA ), "hcache" );

    if ( !( hcachename = cache_name() ) )
        return;

    if ( !( f = fopen( hcachename, "rb" ) ) )
    {
        if ( errno != ENOENT )
            err_printf( "[errno %d] failed to read hcache file '%s': %s",
                errno, hcachename, strerror(errno) );
        return;
    }

    version = read_netstring( f );

    if ( !version || strcmp( object_str( version ), CACHE_FILE_VERSION ) )
        goto bail;

    while ( 1 )
    {
        HCACHEDATA   cachedata;
        HCACHEDATA * c;
        OBJECT * record_type = 0;
        OBJECT * time_secs_str = 0;
        OBJECT * time_nsecs_str = 0;
        OBJECT * age_str = 0;
        OBJECT * includes_count_str = 0;
        OBJECT * hdrscan_count_str = 0;
        int      i;
        int      count;
        LIST   * l;
        int      found;

        cachedata.boundname = 0;
        cachedata.includes = 0;
        cachedata.hdrscan = 0;

        record_type = read_netstring( f );
        if ( !record_type )
        {
            err_printf( "invalid %s\n", hcachename );
            goto cleanup;
        }
        if ( !strcmp( object_str( record_type ), CACHE_RECORD_END ) )
        {
            object_free( record_type );
            break;
        }