Tizen Sockets Extension API References

Important

Thehttp://tizen.org/privilege/internet privilege is needed when using this extension.

More information regarding the "config.xml" file format and how to add privileges there can be found on Tizen Developers

When possible, the semantics of these functions conform to the POSIX.1-2017 standard. The most notable differences are:

• Lack of signals support in Emscripten and in a web environment.

• Tizen Sockets Extension APIs cannot be called from the main thread, which is usually the one running the main function unless -s PROXY_TO_PTHREAD or --proxy-to-worker flags are provided to Emscripten during link time. See Additional flags in the Emscripten documentation.

• Socket functions that accept multiple descriptors can accept only one descriptor type at a time. Descriptor types cannot be mixed (meaning that a method can be called with either socket descriptors or file descriptors, but not both). In particular, this applies to poll() and select() methods.

• select() method can be slow due to its internal implementation in Emscripten. It is recommended to use poll() method instead.

The following extensions to sockets are provided:

• SOCK_NONBLOCK and SOCK_CLOEXEC flags when creating socket()
• accept4() method
• IPv4 multicast options in getsockopt() and setsockopt() methods.
• gethostbyaddr() method
• gethostbyname() method