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authorAshod Nakashian <ashod.nakashian@collabora.co.uk>2017-01-01 15:42:22 -0500
committerThorsten Behrens <Thorsten.Behrens@CIB.de>2017-03-27 01:26:27 +0000
commitd32178652df26b9607101319eae0d9d9bf5e7b9e (patch)
tree8c14d053acd3cb1a9f8124ae55ce3e7fb1f3dfc7
parent082678adb24003dc1128923a470cec1f9203c713 (diff)
wsd: flag for shutdown when we fail to create forkit
And say 'forkit' in the logs where we recognize it instead of the generic 'child'. Change-Id: I7628b064bb6330db145a948640e48b727def3270 Reviewed-on: https://gerrit.libreoffice.org/35578 Reviewed-by: Thorsten Behrens <Thorsten.Behrens@CIB.de> Tested-by: Thorsten Behrens <Thorsten.Behrens@CIB.de>
-rw-r--r--wsd/LOOLWSD.cpp26
1 files changed, 17 insertions, 9 deletions
diff --git a/wsd/LOOLWSD.cpp b/wsd/LOOLWSD.cpp
index 9ea9d4971..866ad79f8 100644
--- a/wsd/LOOLWSD.cpp
+++ b/wsd/LOOLWSD.cpp
@@ -431,7 +431,7 @@ static std::shared_ptr<ChildProcess> getNewChild()
}
}
- LOG_DBG("getNewChild: No live child, forking more.");
+ LOG_WRN("getNewChild: No available child. Sending spawn request to forkit and failing.");
}
while (chrono::duration_cast<chrono::milliseconds>(chrono::steady_clock::now() - startTime).count() <
CHILD_TIMEOUT_MS * 4);
@@ -2038,12 +2038,12 @@ int LOOLWSD::main(const std::vector<std::string>& /*args*/)
{
if (WIFEXITED(status))
{
- LOG_INF("Child process [" << pid << "] exited with code: " <<
+ LOG_INF("Forkit process [" << pid << "] exited with code: " <<
WEXITSTATUS(status) << ".");
}
else
{
- LOG_ERR("Child process [" << pid << "] " <<
+ LOG_ERR("Forkit process [" << pid << "] " <<
(WCOREDUMP(status) ? "core-dumped" : "died") <<
" with " << SigUtil::signalName(WTERMSIG(status)));
}
@@ -2054,17 +2054,18 @@ int LOOLWSD::main(const std::vector<std::string>& /*args*/)
if (forKitPid < 0)
{
LOG_FTL("Failed to spawn forkit instance. Shutting down.");
+ SigUtil::requestShutdown();
break;
}
}
else if (WIFSTOPPED(status) == true)
{
- LOG_INF("Child process [" << pid << "] stopped with " <<
+ LOG_INF("Forkit process [" << pid << "] stopped with " <<
SigUtil::signalName(WSTOPSIG(status)));
}
else if (WIFCONTINUED(status) == true)
{
- LOG_INF("Child process [" << pid << "] resumed with SIGCONT.");
+ LOG_INF("Forkit process [" << pid << "] resumed with SIGCONT.");
}
else
{
@@ -2073,17 +2074,24 @@ int LOOLWSD::main(const std::vector<std::string>& /*args*/)
}
else
{
- LOG_ERR("An unknown child process died, pid: " << pid);
+ LOG_ERR("An unknown child process [" << pid << "] died.");
}
}
else if (pid < 0)
{
- LOG_SYS("waitpid failed.");
+ LOG_SYS("Forkit waitpid failed.");
if (errno == ECHILD)
{
// No child processes.
- LOG_FTL("No Forkit instance. Terminating.");
- break;
+ // Spawn a new forkit and try to dust it off and resume.
+ close(ForKitWritePipe);
+ forKitPid = createForKit();
+ if (forKitPid < 0)
+ {
+ LOG_FTL("Failed to spawn forkit instance. Shutting down.");
+ SigUtil::requestShutdown();
+ break;
+ }
}
}
else // pid == 0, no children have died