[powersave-devel] [PATCH} powersave-0.9.25: powersaved use 100% cpu

[Anton Farygin]

Hi !

I'm build powersave-0.9.25 for ALT Linux and resolve bug into
powersaved polling code (incorrect timespec calclualtion for poll interval).

With this patch powersaved works fine.

Rgds,
Anton Farygin
ALT Linux Team

diff -urN powersave-0.9.25.orig/daemon/powersaved.cpp 
powersave-0.9.25/daemon/powersaved.cpp
--- powersave-0.9.25.orig/daemon/powersaved.cpp 2005-03-19 18:36:52 +0300
+++ powersave-0.9.25/daemon/powersaved.cpp      2005-07-05 20:10:28 +0400
@@ -504,12 +504,13 @@
                        req.tv_usec = 0;
                }
                else {
-                       req.tv_sec  = config->current_scheme->POLL_INTERVAL / 
1000
-                               - process_time / (1000*1000);
-                       req.tv_usec = (config->current_scheme->POLL_INTERVAL * 
1000 % 1000000)
-                               - process_time % (1000*1000);
+                       struct timeval timedec;
+                       req.tv_sec  = config->current_scheme->POLL_INTERVAL / 
1000;
+                       req.tv_usec = (config->current_scheme->POLL_INTERVAL * 
1000 % 1000000);
+                       timersub(&tv_stop,&tv_start,&timedec);
+                       timersub(&req, &timedec, &req);
                        pDebug (DBG_DEBUG, "Needed %lu sec and %lu usec time to 
process functions after select\n",
-                       process_time / (1000*1000), process_time % (1000*1000));
+                       timedec.tv_sec,timedec.tv_usec);
                }
        }
 }


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