With TCP it's desirable that SIGIO wakes up the application to check
if there is buffer space space available on the mode. With UDP the
behavior is not acceptable as we don't know if the other endpoint is
there as connection establishment is missing. Hence buffers might
stay full forever.
Driver must return NSAPI_ERROR_WOULD_BLOCK if a server won't accept
data from the modem and the modem's buffers are full. In case that
socket is closed driver returns NSAPI_ERROR_CONNECTION_LOST.
The DEVICE_FOO macros are always defined (either 0 or 1).
This patch replaces any instances of a define check on a DEVICE_FOO
macro with value test instead.
Signed-off-by: Alastair D'Silva <alastair@d-silva.org>
As part of the ESP8266 connect sequence, ESP8266Interface::connect,
a software reset is performed. If the ESP8266 had been connected
previously then the ESP8266 will sometimes send a "WIFI DISCONNECT" OOB
message before performing the software reset. This causes the
ESP8266::_oob_connection_status to change its state (_conn_status) from
NSAPI_STATUS_DISCONNECTED to NSAPI_STATUS_CONNECTING. This causes
ESP8266Interface::_startup, called later in the boot seqeunce, to skip
ESP8266::startup. Without this call socket mux mode (CIPMUX=1) is never
enabled and all send commands using this format fail with a "Link Type"
error.
This patch fixes that problem by unconditionally calling
ESP8266::startup as part of the ESP8266 connect sequence.
UDP packets are always received as OOB data. Without checking for
new OOB data with a call to "_process_oob" then recv_udp never blocks.
If a UDP packet is not available then NSAPI_ERROR_WOULD_BLOCK is
returned. This causes mbed-os's DNS handling to always fail when
flow control is enabled.
This patch fixes recv_udp by always calling "_process_oob" regardless
of if flow control is enabled. This ensures that recv_udp follows the
timeout parameter and waits for new data to arrive.
Currently there are two issues which prevent building Mbed OS with
-std=gnu++11 when using Arm Compiler 6:
* NanostackRfPhys2lp.cpp contains a narrowing conversion in a braced
initializer list
* ns_types.h includes <stdalign.h> which Arm Compiler 6 currently
does not provide
This patch fixes both issues. The first one is fixed by changing the
underlying type of the corresponding enumeration when the code is
compiled as C++11. The second issue is worked around by avoiding the
use of <stdalign.h> header for Arm Compiler versions prior to 6.12.
"ns_types.h" results in build failure when networking feature is ignored with
.mbedignored. ESP8266 component should be enabled only when NSAPI is present.
Philipp Steiner
Veijo Pesonen
Mel W
Juha Ylinen
Seppo Takalo
offirko
Yossi Levy
Antti Kauppila
Michal Paszta
Deepika
David Saada
Alastair D'Silva
Russ Butler
Fred.Li
jeromecoutant
Russ Butler
Mikhail Maltsev
Oren Cohen