In z/OS® V2R1 Communications
Server, an application can issue a synchronous or an asynchronous
receive socket API call that completes only when a TCP connection
is ended.
This support is available on the recv(), recvfrom(),
and recvmsg() functions in the z/OS XL
C/C++ Runtime Library. The support is also available on the recv(BPX1RCV,
BPX4RCV), recvfrom(BPX1RFM, BPX4RFM), recvmsg(BPX2RMS, BPX4RMS), and
asyncio(BPX1AIO, BPX4AIO) assembler callable services.
Restriction: This enhancement is supported for TCP sockets,
but not for UDP or RAW sockets.
Receiving notification of the termination of a socket
connection
To receive a notification when a socket connection
is terminated, perform the task in
Table 1.
Table 1. Connection termination notification
for sockets| Task |
Reference |
|---|
| Issue the receive socket call with the flag
value MSG_CONNTERM. |
- Recv(), recvfrom(), and recvmsg() in z/OS XL C/C++ Runtime Library Reference
- Recv(BPX1RCV, BPX4RCV), recvfrom(BPX1RFM, BPX4RFM), and recvmsg(BPX2RMS,
BPX4RMS) in z/OS UNIX System Services Programming: Assembler
Callable Services Reference
- Asyncio(BPX1AIO, BPX4AIO), AioCmd=Aio#Recv, AioCmd=Aio#RecvFrom,
and AioCmd=Aio#RecvMsg in z/OS UNIX System Services Programming: Assembler
Callable Services Reference
|