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Index: add call to get rid of filter subprocesses at end of indexing (for the GUI thread)

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This commit is contained in:
Jean-Francois Dockes
2010-11-23 19:35:44 +01:00
parent 0accf76b5c
commit 34151006fe
4 changed files with 60 additions and 24 deletions
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src/utils/execmd.cpp
+42 -23
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@@ -128,27 +128,8 @@ public:
if (!m_active || !m_parent)
return;
LOGDEB1(("~ExecCmdRsrc: working. mypid: %d\n", (int)getpid()));
int status;
if (m_parent->m_pid > 0) {
LOGDEB(("ExecCmd: killing cmd\n"));
pid_t grp = getpgid(m_parent->m_pid);
int ret = killpg(grp, SIGTERM);
if (ret == 0) {
for (int i = 0; i < 3; i++) {
(void)waitpid(m_parent->m_pid, &status, WNOHANG);
if (kill(m_parent->m_pid, 0) != 0)
break;
sleep(1);
if (i == 2) {
LOGDEB(("ExecCmd: killing (KILL) cmd\n"));
killpg(grp, SIGKILL);
}
}
} else {
LOGERR(("ExecCmd: error killing process group %d: %d\n",
grp, errno));
}
}
// Better to close the descs first in case the child is waiting in read
if (m_parent->m_pipein[0] >= 0)
close(m_parent->m_pipein[0]);
if (m_parent->m_pipein[1] >= 0)
@@ -157,6 +138,28 @@ public:
close(m_parent->m_pipeout[0]);
if (m_parent->m_pipeout[1] >= 0)
close(m_parent->m_pipeout[1]);
int status;
if (m_parent->m_pid > 0) {
pid_t grp = getpgid(m_parent->m_pid);
LOGDEB2(("ExecCmd: killpg(%d, SIGTERM)\n", grp));
int ret = killpg(grp, SIGTERM);
if (ret == 0) {
for (int i = 0; i < 3; i++) {
(void)waitpid(m_parent->m_pid, &status, WNOHANG);
if (kill(m_parent->m_pid, 0) != 0)
break;
sleep(1);
if (i == 2) {
LOGDEB(("ExecCmd: killpg(%d, SIGKILL)\n", grp));
killpg(grp, SIGKILL);
(void)waitpid(m_parent->m_pid, &status, WNOHANG);
}
}
} else {
LOGERR(("ExecCmd: error killing process group %d: %d\n",
grp, errno));
}
}
m_parent->m_tocmd.release();
m_parent->m_fromcmd.release();
pthread_sigmask(SIG_UNBLOCK, &m_parent->m_blkcld, 0);
@@ -474,8 +477,24 @@ void ExecCmd::dochild(const string &cmd, const list<string>& args,
bool has_input, bool has_output)
{
// Start our own process group
setpgid(0, getpid());
if (setpgid(0, getpid())) {
LOGINFO(("ExecCmd::dochild: setpgid(0, %d) failed: errno %d\n",
getpid(), errno));
}
// Restore SIGTERM to default. Really, signal handling should be
// specified when creating the execmd. Help Recoll get rid of its
// filter children though. To be fixed one day... Not sure that
// all of this is needed. But an ignored sigterm and the masks are
// normally inherited.
if (signal(SIGTERM, SIG_DFL) == SIG_ERR) {
LOGERR(("ExecCmd::dochild: signal() failed, errno %d\n", errno));
}
sigset_t sset;
sigfillset(&sset);
pthread_sigmask(SIG_UNBLOCK, &sset, 0);
sigprocmask(SIG_UNBLOCK, &sset, 0);
if (has_input) {
close(m_pipein[1]);
m_pipein[1] = -1;