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ukui-search
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Use select to not block process and child process whill exit per 30 secs.

This commit is contained in:
zhangzihao 2021-01-23 09:52:44 +08:00
parent fc283322b7
commit 0dda5b97e5
2 changed files with 54 additions and 14 deletions
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2
libsearch/index/first-index.cpp
View File

@ -112,7 +112,7 @@ void FirstIndex::run(){
pid = fork();
if(pid == 0)
{
prctl(PR_SET_PDEATHSIG, SIGKILL);
prctl(PR_SET_PDEATHSIG, SIGTERM);
prctl(PR_SET_NAME,"first-index");
QSemaphore sem(5);
QMutex mutex1, mutex2, mutex3;

66
libsearch/index/inotify-index.cpp
View File

@ -296,6 +296,12 @@ void InotifyIndex::run(){
read:
numRead = read(m_fd, buf, BUF_LEN);
if (numRead == -1){
printf("\033[1;31;40mread event error\033[0m\n");
fflush(stdout);
assert(false);
}
char * tmp = const_cast<char*>(buf);
@ -317,7 +323,7 @@ fork:
pid = fork();
if(pid == 0)
{
prctl(PR_SET_PDEATHSIG, SIGKILL);
prctl(PR_SET_PDEATHSIG, SIGTERM);
prctl(PR_SET_NAME,"inotify-index");
if (numRead == 0) {
qDebug() << "read() from inotify fd returned 0!";
@ -326,10 +332,44 @@ fork:
qDebug() << "read";
}
eventProcess(buf, numRead);
QTimer* liveTime = new QTimer();
//restart inotify-index proccess per minute
liveTime->setInterval(60000);
liveTime->start();
fd_set read_fds;
int rc;
timeval* read_timeout = (timeval*)malloc(sizeof(timeval));
for(;;)
{
FD_ZERO(&read_fds);
FD_SET(m_fd, &read_fds);
read_timeout->tv_sec = 30;
read_timeout->tv_usec = 0;
rc = select(m_fd + 1, &read_fds, NULL, NULL, read_timeout);
if ( rc < 0 ) {
// error
qDebug() << "rc < 0";
assert(false);
}
else if ( rc == 0 ) {
qDebug() << "timeout";
_exit(0);
}else{
numRead = read(m_fd, buf, BUF_LEN);
if (numRead == -1){
printf("\033[1;31;40mread event error\033[0m\n");
fflush(stdout);
assert(false);
}
this->eventProcess(buf, numRead);
}
}
// QTimer* liveTime = new QTimer();
// //restart inotify-index proccess per minute
// liveTime->setInterval(60000);
// liveTime->start();
//I don't know how to use QTimer, wish someone can fix it!
//MouseZhangZh
@ -338,15 +378,15 @@ fork:
//// _exit(0);
// *b_timeout = 1;
// });
for (;;){
// for (;;){
// qDebug() << "liveTime->remainingTime():" << liveTime->remainingTime();
numRead = read(m_fd, buf, BUF_LEN);
this->eventProcess(buf, numRead);
if (liveTime->remainingTime() < 1){
qDebug() << "liveTime->remainingTime():" << liveTime->remainingTime();
_exit(0);
}
}
// numRead = read(m_fd, buf, BUF_LEN);
// this->eventProcess(buf, numRead);
// if (liveTime->remainingTime() < 1){
// qDebug() << "liveTime->remainingTime():" << liveTime->remainingTime();
// _exit(0);
// }
// }
}
else if (pid > 0){
memset(buf, 0x00, BUF_LEN);