Allow ib_acm to run as a daemon.
Signed-off-by: Sean Hefty <[email protected]>
---
src/acm.c | 45 ++++++++++++++++++++++++++++++++++++++++++++-
1 files changed, 44 insertions(+), 1 deletions(-)
diff --git a/src/acm.c b/src/acm.c
index 7cd60a4..8b09453 100644
--- a/src/acm.c
+++ b/src/acm.c
@@ -32,6 +32,7 @@
#include <string.h>
#include <osd.h>
#include <arpa/inet.h>
+#include <sys/stat.h>
#include <infiniband/acm.h>
#include <infiniband/umad.h>
#include <infiniband/verbs.h>
@@ -2611,11 +2612,53 @@ static FILE *acm_open_log(void)
return f;
}
+static void daemonize(void)
+{
+ pid_t pid, sid;
+
+ pid = fork();
+ if (pid)
+ exit(pid < 0);
+
+ umask(0);
+
+ sid = setsid();
+ if (sid < 0)
+ exit(1);
+
+ if (chdir("/"))
+ exit(1);
+
+ freopen("/dev/null", "r", stdin);
+ freopen("/dev/null", "w", stdout);
+ freopen("/dev/null", "w", stderr);
+}
+
+static void show_usage(char *program)
+{
+ printf("usage: %s\n", program);
+ printf(" [-D] - run as a daemon\n");
+}
+
int CDECL_FUNC main(int argc, char **argv)
{
struct ibv_device **ibdev;
int dev_cnt;
- int i;
+ int op, i, daemon = 0;
+
+ while ((op = getopt(argc, argv, "D")) != -1) {
+ switch (op) {
+ case 'D':
+ daemon = 1;
+ break;
+ default:
+ show_usage(argv[0]);
+ exit(1);
+ }
+ }
+
+ if (daemon)
+ daemonize();
if (osd_init())
return -1;
--
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