sens: fix server crash after stopping the poll client

If the poll client is stopped (killed) the server will crash due to
SIGPIPE. Fix this by intercepting SIGPIPE and clearing the client file
to avoid further prints to it.

Change-Id: I588b9c098634e2eb5cec9dd003e4f9a3be188c3f
Signed-off-by: Octavian Purdila <octavian.purdila@intel.com>

diff --git a/sens.c b/sens.c
index efb5811..5be4cc0 100644 (file)
--- a/sens.c
+++ b/sens.c
@@ -9,6 +9,7 @@
 #include <dlfcn.h>
 #include <pthread.h>
 #include <errno.h>
+#include <signal.h>
 
 #include <hardware/sensors.h>
 #include <utils/Log.h>
@@ -176,8 +177,16 @@ static void run_sensors_poll_v0(void)
        }
 }
 
+static void sig_pipe(int sig)
+{
+       client = NULL;
+}
+
 static void *run_sensors_thread(void *arg __attribute((unused)))
 {
+
+       signal(SIGPIPE, sig_pipe);
+
        switch (dev->version) {
        case SENSORS_DEVICE_API_VERSION_0_1:
        default:
@@ -408,7 +417,6 @@ static int start_server(void)
                        fclose(f);
                }
 
-
                close(conn);
        }
 }