Query: curlopt_tcp_nodelay
OS: mojave
Section: 3
Format: Original Unix Latex Style Formatted with HTML and a Horizontal Scroll Bar
CURLOPT_TCP_NODELAY(3) curl_easy_setopt options CURLOPT_TCP_NODELAY(3)NAMECURLOPT_TCP_NODELAY - set the TCP_NODELAY optionSYNOPSIS#include <curl/curl.h> CURLcode curl_easy_setopt(CURL *handle, CURLOPT_TCP_NODELAY, long nodelay);DESCRIPTIONPass a long specifying whether the TCP_NODELAY option is to be set or cleared (1 = set, 0 = clear). The option is set by default. This will have no effect after the connection has been established. Setting this option will disable TCP's Nagle algorithm. The purpose of this algorithm is to try to minimize the number of small packets on the network (where "small packets" means TCP segments less than the Maximum Segment Size (MSS) for the network). Maximizing the amount of data sent per TCP segment is good because it amortizes the overhead of the send. However, in some cases small seg- ments may need to be sent without delay. This is less efficient than sending larger amounts of data at a time, and can contribute to con- gestion on the network if overdone.DEFAULT1PROTOCOLSAllEXAMPLETODOAVAILABILITYAlways. The default was changed to 1 from 0 in 7.50.2.RETURN VALUEReturns CURLE_OKSEE ALSOCURLOPT_SOCKOPTFUNCTION(3), CURLOPT_TCP_KEEPALIVE(3), libcurl 7.54.0 June 30, 2016 CURLOPT_TCP_NODELAY(3)
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