// ============================================================================
// C servlet sample for the G-WAN Web Application Server (http://trustleap.ch/)
// ----------------------------------------------------------------------------
// json_bench.c: just parsing json
//
// output:
// On 1 single CPU Core, parsing this JSON tree 100,000 times took 624 ms
// ============================================================================
#include "gwan.h" // G-WAN definitions
static char s_json[] = {
"{"
"\"bid_request\":{"
"\"members\":["
"{"
"\"id\":5"
"}"
"],"
"\"allow_exclusive\":false,"
"\"debug_requested\":false,"
"\"tags\":["
"{"
"\"id\":13,"
"\"sizes\":[\"728x90\"],"
"\"position\":\"unknown\","
"\"inventory_source_id\": 476,"
"\"auction_id_64\":8984480746668973511,"
"\"reserve_price\":1.250,"
"\"tag_format\":\"javascript\","
"\"ad_profile_id\":382,"
"\"default_creative_id\":29,"
"\"tag_data\":\"page_id=242\","
"\"querystring\":\"age=21&gender=male\""
"},"
"{"
"\"id\":17,"
"\"sizes\":[\"300x250\"],"
"\"position\":\"unknown\","
"\"inventory_source_id\": 300,"
"\"auction_id_64\":8984480746668973512,"
"\"reserve_price\":1.500,"
"\"tag_format\":\"javascript\","
"\"ad_profile_id\":389,"
"\"default_creative_id\":32,"
"\"tag_data\":\"page_id=242\","
"\"querystring\":\"age=21&gender=male\""
"}"
"],"
"\"bid_info\":{"
"\"user_id_64\":2987961585469200312,"
"\"selling_member_id\":3,"
"\"no_cookies\":false,"
"\"ip_address\":\"96.246.152.18\","
"\"user_agent\":\"Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.5; en-US;rv:1.9.0.3) Gecko/2008092414 Firefox/3.0.3\","
"\"country\":\"US\","
"\"region\":\"NY\","
"\"city\": \"New York\","
"\"postal_code\": 10014,"
"\"dma\":501,"
"\"time_zone\":\"America/New_York\","
"\"url\":\"http://www.yahoo.com/\","
"\"domain\":\"yahoo.com\","
"\"inventory_class\":\"class_1\","
"\"within_iframe\":false,"
"\"total_clicks\":0"
"}"
"}"
"}"
};
int main(int argc, char *argv[])
{
static char top[]=
""
"Benchmarking JSON"
""
"
Benchmarking JSON
\r\n";
xbuf_t *reply = get_reply(argv);
xbuf_ncat(reply, top, sizeof(top) - 1);
// -------------------------------------------------------------------------
// build JSON tree from text, and parse the new JSON tree
// -------------------------------------------------------------------------
xbuf_cat(reply, "Build JSON tree from text: ");
jsn_t *import = jsn_frtext(s_json, "import"); // import from text
xbuf_xcat(reply, "Parsing %s.
", import ? "worked" : "failed");
// -------------------------------------------------------------------------
// re-display all in compact and formatted form (to check it works)
// -------------------------------------------------------------------------
xbuf_cat(reply, "JSON compact output: ");
xbuf_t xbuf;
xbuf_init(&xbuf);
char *text = jsn_totext(&xbuf, import, 0); // 0:compact form
xbuf_xcat(reply, "
", text);
xbuf_free(&xbuf); // free the xbuffer supplying memory for the 'text' ptr
// -------------------------------------------------------------------------
// free the JSON tree
// -------------------------------------------------------------------------
xbuf_cat(reply, " Freeing the JSON tree: ");
jsn_free(import);
xbuf_cat(reply, "Done.
");
// =========================================================================
// now do the same thing repeatedly amd time it
// -------------------------------------------------------------------------
{
#define NBR_ROUNDS 100000
u64 start = getms();
int rounds = NBR_ROUNDS;
while(rounds--)
{
import = jsn_frtext(s_json, "import"); // import from text
jsn_free(import);
}
start = getms() - start;
xbuf_xcat(reply, "Benchmarking JSON "
"On 1 single CPU Core, parsing this JSON tree %U times took"
" %llU ms
", NBR_ROUNDS, start);
}
return HTTP_200_OK; // return an HTTP code
}
// ============================================================================
// End of Source Code
// ============================================================================