Hello,

I have written the below piece of code to send http post request using curl
apis.

In the failure case, same post request is sent again. Three retries are
done, being considering server as not responsive.

Once I call curl_easy_perform(), it will wait for the response from server
for about http_timeout secs and FIN is sent from the client.

Later again I call curl apis to prepare handle and doing curl_easy_perform.

Now a new tcp connection is opened.

Is it possible that I can reuse the same tcp connection to perform Http
post once it is failed ?

Below is the code snippet.

void function()

{

static int init = 0;

if (init == 0)

{

init = 1;

curl_global_init(CURL_GLOBAL_ALL);

}

CURL *curl = curl_easy_init();

struct curl_slist *slist=NULL;

slist = curl_slist_append(slist, "Content-Type: application/text");

slist = curl_slist_append(slist, "Cache-control: no-cache");

slist = curl_slist_append(slist, "Expect:");

curl_easy_setopt(curl, CURLOPT_HTTPHEADER, slist);

curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, write_data);

if (ctx->sourceAddress != NULL)

curl_easy_setopt(curl, CURLOPT_INTERFACE, ctx->sourceAddress);

curl_easy_setopt(curl, CURLOPT_URL, ctx->serverName);

curl_easy_setopt(curl, CURLOPT_PORT, ctx->serverPort);

curl_easy_setopt(curl, CURLOPT_PROTOCOLS, CURLPROTO_HTTP | CURLPROTO_HTTPS);

curl_easy_setopt(curl, CURLOPT_URL, url);

curl_easy_setopt(curl, CURLOPT_TIMEOUT, ctx->HttpTimeOut);

curl_easy_setopt(curl, CURLOPT_FORBID_REUSE, 0);

res = curl_easy_perform(curl);

if(res != CURL_OK)

{

/* retry the above code for three times before considering the server as
unresponsive*/

}

} /* End of void function() */

Please let me know if I am missing anything.

Your help in this regard is appreciated.

Regards,
Sriram

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Received on 2014-11-26