Changeset 4762 for trunk/Ohana/src/opihi/pcontrol/GetJobOutput.c

Timestamp:

Aug 13, 2005, 10:30:13 AM (21 years ago)

Author:

eugene

Message:

working on speed issues

File:

• trunk/Ohana/src/opihi/pcontrol/GetJobOutput.c (modified) (4 diffs)

trunk/Ohana/src/opihi/pcontrol/GetJobOutput.c

@@ -1 +1 @@
 # include "pcontrol.h"
-# define PCLIENT_TIMEOUT 20
+# define PCLIENT_TIMEOUT 500
 
 /* we read Nbytes from the host, then watch for the prompt */ 
@@ -7 +7 @@
   int i, status, Nstart;
   char *line;
+  struct timespec request, remain;
 
   /* flush any earlier messages */
@@ -12 +13 @@
   FlushIOBuffer (buffer);
   Nstart = buffer[0].Nbuffer;
+
+  /* avoid blocking on waitpid, test every 100 usec, up to 50 msec */
+  request.tv_sec = 0;
+  request.tv_nsec = 100000;
 
   /* send cmd (stdout / stderr) */
@@ -27 +32 @@
       line = memstr (buffer[0].buffer, PCLIENT_PROMPT, buffer[0].Nbuffer);
     }
-    if (status == -1) usleep (10000);
+    if (status == -1) nanosleep (&request, &remain);
   }
   if (status ==  0) return (PCLIENT_DOWN);