mDNSResponder-1096.100.3.tar.gz

[apple/mdnsresponder.git] / mDNSPosix / ExampleClientApp.c

diff --git a/mDNSPosix/ExampleClientApp.c b/mDNSPosix/ExampleClientApp.c
index e05b541331947665f3573bc49c7f3da6feea05f2..503751dfbf8bda43f52ec383fcfa3156227def50 100644 (file)
--- a/mDNSPosix/ExampleClientApp.c
+++ b/mDNSPosix/ExampleClientApp.c
@@ -5,9 +5,9 @@
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
- * 
+ *
  *     http://www.apache.org/licenses/LICENSE-2.0
- * 
+ *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
@@ -15,15 +15,15 @@
  * limitations under the License.
  */
 
-#include <stdio.h>                     // For printf()
-#include <stdlib.h>                    // For exit() etc.
-#include <string.h>                    // For strlen() etc.
-#include <unistd.h>                    // For select()
-#include <errno.h>                     // For errno, EINTR
-#include <netinet/in.h>                // For INADDR_NONE
-#include <arpa/inet.h>         // For inet_addr()
-#include <netdb.h>                     // For gethostbyname()
-#include <signal.h>                    // For SIGINT, etc.
+#include <stdio.h>          // For printf()
+#include <stdlib.h>         // For exit() etc.
+#include <string.h>         // For strlen() etc.
+#include <unistd.h>         // For select()
+#include <errno.h>          // For errno, EINTR
+#include <netinet/in.h>     // For INADDR_NONE
+#include <arpa/inet.h>      // For inet_addr()
+#include <netdb.h>          // For gethostbyname()
+#include <signal.h>         // For SIGINT, etc.
 
 #include "mDNSEmbeddedAPI.h"  // Defines the interface to the client layer above
 #include "mDNSPosix.h"      // Defines the specific types needed to run mDNS on this platform
@@ -34,58 +34,60 @@
 static volatile mDNSBool StopNow;
 
 mDNSlocal void HandleSIG(int signal)
-       {
-       (void)signal;   // Unused
-       debugf("%s","");
-       debugf("HandleSIG");
-       StopNow = mDNStrue;
-       }
+{
+    (void)signal;   // Unused
+    debugf("%s","");
+    debugf("HandleSIG");
+    StopNow = mDNStrue;
+}
 
 mDNSexport void ExampleClientEventLoop(mDNS *const m)
-       {
-       signal(SIGINT, HandleSIG);      // SIGINT is what you get for a Ctrl-C
-       signal(SIGTERM, HandleSIG);
+{
+    signal(SIGINT, HandleSIG);  // SIGINT is what you get for a Ctrl-C
+    signal(SIGTERM, HandleSIG);
+
+    while (!StopNow)
+    {
+        int nfds = 0;
+        fd_set readfds;
+        fd_set writefds;
+        struct timeval timeout;
+        int result;
+
+        // 1. Set up the fd_set as usual here.
+        // This example client has no file descriptors of its own,
+        // but a real application would call FD_SET to add them to the set here
+        FD_ZERO(&readfds);
+        FD_ZERO(&writefds);
+
+        // 2. Set up the timeout.
+        // This example client has no other work it needs to be doing,
+        // so we set an effectively infinite timeout
+        timeout.tv_sec = FutureTime;
+        timeout.tv_usec = 0;
+
+        // 3. Give the mDNSPosix layer a chance to add its information to the fd_set and timeout
+        mDNSPosixGetFDSet(m, &nfds, &readfds, &writefds, &timeout);
+
+        // 4. Call select as normal
+        verbosedebugf("select(%d, %d.%06d)", nfds, timeout.tv_sec, timeout.tv_usec);
+        result = select(nfds, &readfds, &writefds, NULL, &timeout);
+
+        if (result < 0)
+        {
+            verbosedebugf("select() returned %d errno %d", result, errno);
+            if (errno != EINTR) StopNow = mDNStrue;
+        }
+        else
+        {
+            // 5. Call mDNSPosixProcessFDSet to let the mDNSPosix layer do its work
+            mDNSPosixProcessFDSet(m, &readfds, &writefds);
 
-       while (!StopNow)
-               {
-               int nfds = 0;
-               fd_set readfds;
-               struct timeval timeout;
-               int result;
-               
-               // 1. Set up the fd_set as usual here.
-               // This example client has no file descriptors of its own,
-               // but a real application would call FD_SET to add them to the set here
-               FD_ZERO(&readfds);
-               
-               // 2. Set up the timeout.
-               // This example client has no other work it needs to be doing,
-               // so we set an effectively infinite timeout
-               timeout.tv_sec = 0x3FFFFFFF;
-               timeout.tv_usec = 0;
-               
-               // 3. Give the mDNSPosix layer a chance to add its information to the fd_set and timeout
-               mDNSPosixGetFDSet(m, &nfds, &readfds, &timeout);
-               
-               // 4. Call select as normal
-               verbosedebugf("select(%d, %d.%06d)", nfds, timeout.tv_sec, timeout.tv_usec);
-               result = select(nfds, &readfds, NULL, NULL, &timeout);
-               
-               if (result < 0)
-                       {
-                       verbosedebugf("select() returned %d errno %d", result, errno);
-                       if (errno != EINTR) StopNow = mDNStrue;
-                       }
-               else
-                       {
-                       // 5. Call mDNSPosixProcessFDSet to let the mDNSPosix layer do its work
-                       mDNSPosixProcessFDSet(m, &readfds);
-                       
-                       // 6. This example client has no other work it needs to be doing,
-                       // but a real client would do its work here
-                       // ... (do work) ...
-                       }
-               }
+            // 6. This example client has no other work it needs to be doing,
+            // but a real client would do its work here
+            // ... (do work) ...
+        }
+    }
 
-       debugf("Exiting");
-       }
+    debugf("Exiting");
+}