modify: ueventd poll a moment by itself

Signed-off-by: Nxionglei6 <xionglei6@huawei.com>

ueventd/ueventd_main.c

@@ -21,11 +21,32 @@
 #include "init_log.h"
 #include "init_socket.h"
 
+static void PollUeventdSocket(int ueventSockFd)
+{
+    struct pollfd pfd = {};
+    pfd.events = POLLIN;
+    pfd.fd = ueventSockFd;
+    int ret = -1;
+
+    while (1) {
+        pfd.revents = 0;
+        ret = poll(&pfd, 1, UEVENTD_POLL_TIME);
+        if (ret == 0) {
+            break;
+        } else if (ret < 0) {
+            INIT_LOGE("Failed to poll ueventd socket!");
+            return;
+        }
+        if (pfd.revents & POLLIN) {
+            ProcessUevent(ueventSockFd, NULL, 0); // Not require boot devices
+        }
+    }
+}
+
 int main(int argc, char **argv)
 {
     char *ueventdConfigs[] = {"/etc/ueventd.config", NULL};
     int i = 0;
-    int ret = -1;
     while (ueventdConfigs[i] != NULL) {
         ParseUeventdConfigFile(ueventdConfigs[i++]);
     }
@@ -51,22 +72,6 @@ int main(int argc, char **argv)
         INIT_LOGI("ueventd start to process uevent message");
         ProcessUevent(ueventSockFd, NULL, 0); // Not require boot devices
     }
-    struct pollfd pfd = {};
-    pfd.events = POLLIN;
-    pfd.fd = ueventSockFd;
-
-    while (1) {
-        pfd.revents = 0;
-        ret = poll(&pfd, 1, UEVENTD_POLL_TIME);
-        if (ret == 0) {
-            break;
-        } else if (ret < 0) {
-            INIT_LOGE("Failed to poll ueventd socket!");
-            return -1;
-        }
-        if (pfd.revents & POLLIN) {
-            ProcessUevent(ueventSockFd, NULL, 0); // Not require boot devices
-        }
-    }
+    PollUeventdSocket(ueventSockFd);
     return 0;
 }