1 files changed, 70 insertions, 0 deletions
diff --git a/src/ProcCheckTime.c b/src/ProcCheckTime.c
new file mode 100644
index 0000000..9efbe05
--- /dev/null
+++ b/src/ProcCheckTime.c
@@ -0,0 +1,70 @@
+#ifdef HAVE_CONFIG_H
+# include "SctConfig.h"
+#endif
+
+#include "SctConst.h"
+#include "SctCommon.h"
+#include "ProcCommon.h"
+
+#include <string.h>
+#include <unistd.h>
+#include <signal.h>
+
+#include <pthread.h>
+#include <semaphore.h>
+
+volatile sig_atomic_t sctproc_abort;
+
+static void break_handler(int signo){
+	sctproc_abort = 1;
+	sem_post(&checktime_sem);
+}
+
+void* sctproc_checktime(void* arg){
+	PROCINFO* procinfo = arg;
+	struct sigaction break_catch;
+	struct timespec timelimit, timeinit, timecur, timeexpire;
+	long long sleeptime = (long long)(procinfo->i_limit_time) * 1000000;
+
+	pthread_mutex_lock(&checktime_mutex);
+	checktime_exist = 1;
+	pthread_mutex_unlock(&checktime_mutex);
+
+	clock_gettime(CLOCK_REALTIME, &timeinit);
+
+#ifndef HAVE_CONF_CAP
+	enable_setuid();
+#endif
+
+	sctproc_abort = 0;
+	memset(&break_catch, 0, sizeof(break_catch));
+	break_catch.sa_handler = &break_handler;
+	sigaction(SIGINT, &break_catch, NULL);
+	sigaction(SIGTERM, &break_catch, NULL);
+
+	timelimit.tv_sec = timeinit.tv_sec + sleeptime / 1000000000;
+	timelimit.tv_nsec = timeinit.tv_nsec + sleeptime % 1000000000;
+	checktimespec(&timelimit);
+
+	do{
+		clock_gettime(CLOCK_REALTIME, &timecur);
+		timeexpire.tv_sec = timecur.tv_sec;
+		timeexpire.tv_nsec = timecur.tv_nsec + SCTJUDGE_PROC_CHECKTIME_INTERVAL;
+		checktimespec(&timeexpire);
+	}while(comparetimespec(&timecur, &timelimit) < 0 && 
+		sem_timedwait(&checktime_sem, &timeexpire));
+
+	if(!sctproc_abort){
+		pthread_mutex_lock(&sctproc_tle_mutex);
+		sctproc_tle = 1;
+		pthread_mutex_unlock(&sctproc_tle_mutex);
+	}
+
+	kill(child_pid, SIGKILL);
+
+	pthread_mutex_lock(&checktime_mutex);
+	checktime_exist = 0;
+	pthread_mutex_unlock(&checktime_mutex);
+	return NULL;
+}
+