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[HttpClient][Curl] Use poll api to avoid select 1024 FD hard limit #1426

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[HttpClient][Curl] Use poll api to avoid select 1024 FD hard limit #1426

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25 changes: 8 additions & 17 deletions lib/http/HttpClient_Curl.hpp
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Original file line number Diff line number Diff line change
Expand Up @@ -23,6 +23,7 @@
#include <future>
#include <atomic>

#include <poll.h>
#include <curl/curl.h>

#include <unistd.h>
Expand Down Expand Up @@ -462,28 +463,18 @@ class CurlHttpOperation {
*/
static int WaitOnSocket(curl_socket_t sockfd, int for_recv, long timeout_ms)
{
struct timeval tv;
fd_set infd, outfd, errfd;
int res;

tv.tv_sec = timeout_ms / 1000;
tv.tv_usec = (timeout_ms % 1000) * 1000;

FD_ZERO(&infd);
FD_ZERO(&outfd);
FD_ZERO(&errfd);

FD_SET(sockfd, &errfd); /* always check for error */
struct pollfd pfd;

pfd.fd = sockfd;
pfd.revents = 0;

if(for_recv) {
FD_SET(sockfd, &infd);
pfd.events = POLLIN | POLLERR;
} else {
FD_SET(sockfd, &outfd);
pfd.events = POLLOUT | POLLERR;
}

/* select() returns the number of signalled sockets or -1 */
res = select((int)sockfd + 1, &infd, &outfd, &errfd, &tv);
return res;
return poll(&pfd, 1, timeout_ms);
}

// Raw response buffer
Expand Down
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