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Matt Witherspoon fixed a problem case when the CPU load went to 100% when a

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HTTP upload was disconnected:

"What appears to be happening is that my system (Linux 2.6.17 and 2.6.13) is
setting *only* POLLHUP on poll() when the conditions in my previous mail
occur. As you can see, select.c:Curl_select() does not check for POLLHUP. So
basically what was happening, is poll() was returning immediately (with
POLLHUP set), but when Curl_select() looked at the bits, neither POLLERR or
POLLOUT was set. This still caused Curl_readwrite() to be called, which
quickly returned. Then the transfer() loop kept continuing at full speed
forever."
This commit is contained in:
Daniel Stenberg 2006-12-05 13:37:05 +00:00
parent b555c60e49
commit 3ce43764be
3 changed files with 17 additions and 2 deletions
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2
lib/select.c
View file

@ -124,7 +124,7 @@ int Curl_select(curl_socket_t readfd, curl_socket_t writefd, int timeout_ms)
if (writefd != CURL_SOCKET_BAD) {
if (pfd[num].revents & POLLOUT)
ret |= CSELECT_OUT;
if (pfd[num].revents & POLLERR)
if (pfd[num].revents & (POLLERR|POLLHUP))
ret |= CSELECT_ERR;
}