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XS_INIT(3) Crossroads I/O Manual XS_INIT(3)

xs_init - initialise Crossroads context

void *xs_init ();

The xs_init() function initialises a Crossroads context.
Thread safety. A context is thread safe and may be shared among as many application threads as necessary, without any additional locking required on the part of the caller.
The individual sockets within a context are not thread safe — applications may not use a single socket concurrently from multiple threads.
A socket may be migrated from one thread to another, by issuing a full memory barrier between individual calls on the socket. For example, this means applications can create a socket in one thread with xs_socket() and then pass it to a newly created thread as part of thread initialization via a structure passed as an argument to pthread_create().
Context options. Context options may be set prior to creating the first socket within a context, using the xs_setctxopt() function. See xs_setctxopt(3) for details on the available context options.
Multiple contexts. Multiple contexts may coexist within a single application. Thus, an application can use Crossroads directly and at the same time make use of any number of additional libraries or components which themselves make use of Crossroads.

The xs_init() function shall return an opaque handle to the initialised context if successful. Otherwise it shall return NULL and set errno to one of the values defined below.

No error values are defined.

xs(7) xs_term(3) xs_setctxopt(3)

The Crossroads documentation was written by Martin Sustrik <[1]> and Martin Lucina <[2]>.

12/20/2018 Crossroads I/O 1.2.0

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