add get_host_info_all function and example

signed off: tangliangliang@oppo.com

Author: 80333521

examples/disp_host.py

@@ -0,0 +1,16 @@
+from pythonlsf import lsf
+import inspect
+
+if __name__ == '__main__':
+    if lsf.lsb_init("test") > 0:
+        exit - 1;
+
+    for hostInfoEnt in lsf.get_host_info_all():
+        attributes = [d for d in dir(hostInfoEnt)
+                      if not d.startswith('__')]
+        item = {}
+        for a in attributes:
+            v = getattr(hostInfoEnt, a)
+            if not inspect.ismethod(v) and isinstance(v, (int, str, float)):
+                item[a] = v
+        print(item)

pythonlsf/lsf.i

@@ -707,6 +707,25 @@ PyObject * get_pids_from_stream(struct jRusage * jrusage) {
         PyList_SetItem(result, i, o);
     }
     return result;
-}      
+}
+
+PyObject * get_host_info_all() {
+    struct hostInfoEnt *hostinfo;
+    char **hosts = NULL;
+    int numhosts = 0;
+
+    // Return queries as C hostInfoEnt*
+    hostinfo = lsb_hostinfo(hosts, &numhosts);
+
+    PyObject *result = PyList_New(numhosts);     // Create PyObject * to get C returns
+    int i;
+    for (i = 0; i < numhosts; i++) {             // Save queries in a loop to result
+        PyObject *o = SWIG_NewPointerObj(SWIG_as_voidptr(&hostinfo[i]),
+                                         SWIGTYPE_p_hostInfoEnt, 0 | 0 );
+        PyList_SetItem(result,i,o);
+    }
+
+    return result;
+}
 
 %}