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Code Issues Releases Wiki Activity

pause: return early for calls that don't change pause state

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Reviewed-by: Patrick Monnerat
Ref: #4833
Closes #5026
This commit is contained in:
Daniel Stenberg 2020-03-03 08:10:09 +01:00
parent 485d4470d3
commit 64258bd0aa
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GPG Key ID: 5CC908FDB71E12C2
1 changed files with 7 additions and 0 deletions
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7
lib/easy.c
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@ -975,6 +975,7 @@ CURLcode curl_easy_pause(struct Curl_easy *data, int action)
{
struct SingleRequest *k = &data->req;
CURLcode result = CURLE_OK;
int oldstate = k->keepon & (KEEP_RECV_PAUSE| KEEP_SEND_PAUSE);
/* first switch off both pause bits */
int newstate = k->keepon &~ (KEEP_RECV_PAUSE| KEEP_SEND_PAUSE);
@ -983,6 +984,12 @@ CURLcode curl_easy_pause(struct Curl_easy *data, int action)
newstate |= ((action & CURLPAUSE_RECV)?KEEP_RECV_PAUSE:0) |
((action & CURLPAUSE_SEND)?KEEP_SEND_PAUSE:0);
if((newstate & (KEEP_RECV_PAUSE| KEEP_SEND_PAUSE)) == oldstate) {
/* Not changing any pause state, return */
DEBUGF(infof(data, "pause: no change, early return\n"));
return CURLE_OK;
}
/* put it back in the keepon */
k->keepon = newstate;