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| author | Daniel Stenberg <daniel@haxx.se> | 2020-03-03 08:10:09 +0100 |
|---|---|---|
| committer | Daniel Stenberg <daniel@haxx.se> | 2020-03-06 10:25:40 +0100 |
| commit | 64258bd0aa6ad23195f6be32e6febf7439ab7984 (patch) | |
| tree | 5113a007f5203515768f1d64c4d51c48d3dcb4fd | |
| parent | 485d4470d3b9c09a14e0853c0a00099c3229cbaf (diff) | |
| download | curl-64258bd0aa6ad23195f6be32e6febf7439ab7984.tar.gz | |
pause: return early for calls that don't change pause state
Reviewed-by: Patrick Monnerat
Ref: #4833
Closes #5026
| -rw-r--r-- | lib/easy.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/lib/easy.c b/lib/easy.c index 454621076..2446557f4 100644 --- a/lib/easy.c +++ b/lib/easy.c @@ -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; |