Replaced 12 second locking system with a slighly more complex one inv…

…olving random numbers

HEN_HOUSE/cutils/egs_c_utils.c

@@ -35,6 +35,7 @@
 
 
 #include "egs_c_utils.h"
+#include <stdlib.h>
 
 #ifdef WIN32
 #include <io.h>
@@ -226,6 +227,31 @@ void egsLockControlFile(int *status) {
 #endif
   if( __is_locked == 1 ) { *status = 0; return; }
   if( __my_fd < 0 ) { *status = -1; return; }
+
+/**
+*	Random lock control introduced to ensure a large number of threads won't lock up and cause a failure. 
+*/
+
+
+
+  int elapsedTime = 0;
+  int cycleTime = 0;
+
+  while (elapsedTime < 1200){
+  	/* for the first tries < 120 seconds a randomizer is used to protect against multiple threads continuing to collide. 
+  	 * Following the first 2 minutes of this, 30 second intervals are used, this should only triggered if the storage system 
+  	 * is incredibly slow
+  	*/
+  	if (elapsedTime < 120) { cycleTime = 2 + (rand() % 20); } 
+  	else {cycleTime = 30;}
+  	*status = fcntl(__my_fd,F_SETLK,&fl_write);
+    if( *status == 0 ) { __is_locked = 1; return; }
+  	elapsedTime += cycleTime;
+  	sleep(cycleTime);
+  }
+  printf("egsLockControlFile: failed to lock file for 1200 seconds...\n");
+
+/*
   for(i1=0; i1<5; i1++) {
       for(i2=0; i2<12; i2++) {
           *status = fcntl(__my_fd,F_SETLK,&fl_write);
@@ -234,6 +260,7 @@ void egsLockControlFile(int *status) {
       }
       printf("egsLockControlFile: failed to lock file for 12 seconds...\n");
   }
+  */
   /*
    *status = fcntl(__my_fd,F_SETLKW,&fl_write);
   if( *status == 0 ) __is_locked = 1;