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Prevent swapping of process

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Nanosonde 2019-10-28 20:42:51 +01:00
parent 15b318992d
commit 5f36196e78
1 changed files with 10 additions and 0 deletions
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10
knx-linux/main.cpp
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@ -11,7 +11,10 @@
#include <time.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <signal.h>
#include <sched.h>
#include <sys/mman.h>
volatile sig_atomic_t loopActive = 1;
void signalHandler(int sig)
@ -109,6 +112,13 @@ int main(int argc, char **argv)
{
printf("main() start.\n");
// Prevent swapping of this process
struct sched_param sp;
memset(&sp, 0, sizeof(sp));
sp.sched_priority = sched_get_priority_max(SCHED_FIFO);
sched_setscheduler(0, SCHED_FIFO, &sp);
mlockall(MCL_CURRENT | MCL_FUTURE);
// Register signals
signal(SIGINT, signalHandler);
signal(SIGTERM, signalHandler);