Previously, POSIX function names were aliased to zsock_ function
names using, for example:
#define connect zsock_connect
This caused the C preprocessor to replace any symbol named 'connect',
whether a function or not, in all source code which included socket.h,
with 'zsock_connect'. This generated unintended code where the symbol
'connect' was used as the name of a structure field (as in mqtt.h).
This new inline definition is applied to all the POSIX function symbols,
with the exception of fcntl, a redefinition of which would conflict
with the definiton in the toolchain's fcntl.h.
Fixes#5817
Signed-off-by: Gil Pitney <gil.pitney@linaro.org>
sendto() and recvfrom() are often used with datagram socket.
sendto() is based on net_context_sendto() and recvfrom() is based on
zsock_recv() with parsing source address from the packet header.
Signed-off-by: Aska Wu <aska.wu@linaro.org>
Includes updates to Zephyr networking API feature list (also minor
tweaks to it not dorectly related to sockets), overview of BSD
Sockets compatible API, and basic API reference section.
Signed-off-by: Paul Sokolovsky <paul.sokolovsky@linaro.org>
poll() allows to (efficiently) wait for available data on sockets,
and is essential operation for working with non-blocking sockets.
This is initial, very basic implementation, effectively supporting
just POLLIN operation. (POLLOUT implementation is dummy - it's
assumed that socket is always writable, as there's currently no
reasonable way to test that.)
Signed-off-by: Paul Sokolovsky <paul.sokolovsky@linaro.org>
With CONFIG_NET_SOCKETS_POSIX_NAMES=y, "raw" POSIX names like
socket(), recv(), close() will be exposed (using macro defines).
The close() is the biggest culprit here, because in POSIX it
applies to any file descriptor, but in this implementation -
only to sockets.
Signed-off-by: Paul Sokolovsky <paul.sokolovsky@linaro.org>
This adds Kconfig and build infrastructure and implements
zsock_socket() and zsock_close() functions.
Signed-off-by: Paul Sokolovsky <paul.sokolovsky@linaro.org>
