diff options
| author | Mate Barany <mate.barany@qt.io> | 2025-11-10 17:44:18 +0100 |
|---|---|---|
| committer | Mate Barany <mate.barany@qt.io> | 2025-11-25 17:02:22 +0100 |
| commit | f216d13b67b9fb73c50593d7ab0047dc3b50805e (patch) | |
| tree | caed4e6f8318902d26c44fc7a36e83d0d178aacf /src/network/socket/qnativesocketengine_unix.cpp | |
| parent | 5c7b5d151894c39af07234563edd101da33bafde (diff) | |
Add TCP Keepalive options to QAbstractSocket
TCP Keepalive is turned on for QNAM but it is using the default system
values. On Linux this means that it takes 131 minutes to tear down the
connection. This can be customized with the values of
TCP_KEEPIDLE - how long do we wait before we send probes
TCP_KEEPINTVL - the time interval between two probes
TCP_KEEPCNT - the number of probes sent
So extend Qabstractsocket with the following socketoptions:
KeepAliveIdleOption (TCP_KEEPIDLE)
KeepAliveIntervalOption (TCP_KEEPINTVL)
KeepAliveCountOption (TCP_KEEPCNT)
Not all platforms provide the same support for these parameters. What
we know:
On Linux, all of the above is supported.
On Windows, these are supported since Windows 10, 1709.
On Mac all of the above is supported but TCP_KEEPIDLE is called
TCP_KEEPALIVE.
On QNX 7.1 only TCP_KEEPIDLE is supported and it is called as
TCP_KEEPALIVE.
On QNX 8.0 all of the above is supported and TCP_KEEPIDLE is called
TCP_KEEPIDLE.
MinGW also supports all of the above from version 12, but it seems
that we have an older version in the CI so we need some ifdefs.
VxWorks also supports TCP_KEEPIDLE, TCP_KEEPCNT and TCP_KEEPINTVL.
[ChangeLog][QtNetwork][QAbstractSocket] Added new socketoptions
to QAbstractSocket: KeepAliveIdleOption, KeepAliveIntervalOption and
KeepAliveCountOption.
Task-number: QTBUG-136625
Change-Id: I89d1788a19719da10ce740b52b2a6570680e0f5d
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Diffstat (limited to 'src/network/socket/qnativesocketengine_unix.cpp')
| -rw-r--r-- | src/network/socket/qnativesocketengine_unix.cpp | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/src/network/socket/qnativesocketengine_unix.cpp b/src/network/socket/qnativesocketengine_unix.cpp index a19223e2348..e920de11c13 100644 --- a/src/network/socket/qnativesocketengine_unix.cpp +++ b/src/network/socket/qnativesocketengine_unix.cpp @@ -170,6 +170,26 @@ static void convertToLevelAndOption(QNativeSocketEngine::SocketOption opt, #endif } break; + case QNativeSocketEngine::KeepAliveIdleOption: + level = IPPROTO_TCP; +#ifdef TCP_KEEPALIVE + n = TCP_KEEPALIVE; +#else + n = TCP_KEEPIDLE; +#endif + break; + case QNativeSocketEngine::KeepAliveIntervalOption: +#ifdef TCP_KEEPINTVL + level = IPPROTO_TCP; + n = TCP_KEEPINTVL; +#endif + break; + case QNativeSocketEngine::KeepAliveCountOption: +#ifdef TCP_KEEPCNT + level = IPPROTO_TCP; + n = TCP_KEEPCNT; +#endif + break; } } |