//--------------------------------------------------------------------------------------------------
le_result_t fwDaemons_SigChildHandler
(
pid_t pid, ///< [IN] Pid of the process that produced the SIGCHLD.
int status ///< [IN] Status of the process.
)
{
// See which daemon produced this signal.
DaemonObj_t* daemonObjPtr = NULL;
int i;
for (i = 0; i < NUM_ARRAY_MEMBERS(FrameworkDaemons); i++)
{
if (FrameworkDaemons[i].pid == pid)
{
daemonObjPtr = &(FrameworkDaemons[i]);
// Check status of process and handle SIGCONT and SIGSTOP signals.
if ( WIFSTOPPED(status) || WIFCONTINUED(status) )
{
// The framework dameon was either stopped or continued which should not happen kill
// the process now.
kill_Hard(pid);
// Return LE_OK here, when the process actually dies we'll get another SIGCHLD.
return LE_OK;
}
// Mark this daemon as dead.
daemonObjPtr->pid = -1;
kill_Died(pid);
break;
}
}
if (daemonObjPtr == NULL)
{
return LE_NOT_FOUND;
}
if (ShutdownIndex >= 0)
{
// We are in the midst of a shutdown sequence, continue the shutdown sequence.
ShutdownIndex = ShutdownNextDaemon(ShutdownIndex);
return LE_OK;
}
else
{
// This was an unexpected error from one of the framework daemons.
LE_EMERG("The framework daemon '%s' has experienced a problem.",
le_path_GetBasenamePtr(daemonObjPtr->path, "/"));
return LE_FAULT;
}
}
//--------------------------------------------------------------------------------------------------
void fwDaemons_Shutdown
(
void
)
{
// Set the Shutdown index to the last daemon in the list.
ShutdownIndex = NUM_ARRAY_MEMBERS(FrameworkDaemons) - 1;
// Start the shutdown sequence. After the first framework daemon is shutdown the shutdown
// sequence will be continued by the fwDaemons_SigChildHandler().
ShutdownIndex = ShutdownNextDaemon(ShutdownIndex);
}
//--------------------------------------------------------------------------------------------------
le_result_t fwDaemons_SigChildHandler
(
pid_t pid ///< [IN] Pid of the process that produced the SIGCHLD.
)
{
// See which daemon produced this signal.
DaemonObj_t* daemonObjPtr = NULL;
int i;
for (i = 0; i < NUM_ARRAY_MEMBERS(FrameworkDaemons); i++)
{
if (FrameworkDaemons[i].pid == pid)
{
daemonObjPtr = &(FrameworkDaemons[i]);
// Mark this daemon as dead.
daemonObjPtr->pid = -1;
kill_Died(pid);
break;
}
}
if (daemonObjPtr == NULL)
{
return LE_NOT_FOUND;
}
// This child process is a framework daemon.
// Reap the child now.
int status = wait_ReapChild(pid);
if (ShutdownIndex >= 0)
{
// We are in the midst of a shutdown sequence, continue the shutdown sequence.
ShutdownIndex = ShutdownNextDaemon(ShutdownIndex);
return LE_OK;
}
else
{
const char* daemonName = le_path_GetBasenamePtr(daemonObjPtr->path, "/");
if (WIFEXITED(status))
{
// This was an unexpected error from one of the framework daemons.
LE_EMERG("Framework daemon '%s' has exited with code %d.",
daemonName,
WEXITSTATUS(status));
}
else if (WIFSIGNALED(status))
{
// This was an unexpected error from one of the framework daemons.
LE_EMERG("Framework daemon '%s' has been killed by a signal: %d.",
daemonName,
WTERMSIG(status));
}
else
{
// This was an unexpected error from one of the framework daemons.
LE_EMERG("Framework daemon '%s' has died for an unknown reason (status = 0x%x).",
daemonName,
status);
}
return LE_FAULT;
}
}