Changeset 440 for trunk/user/ksh

Timestamp:

May 3, 2018, 5:51:22 PM (7 years ago)

Author:

alain

Message:

1/ Fix a bug in the Multithreaded "sort" applicationr:
The pthread_create() arguments must be declared as global variables.
2/ The exit syscall can be called by any thread of a process..

Location:

trunk/user/ksh

Files:

• Makefile (modified) (1 diff)
• ksh.c (modified) (5 diffs)

trunk/user/ksh/Makefile

@@ -25 +25 @@
 
 clean:
-        rm -rf build/*.o build/*.elf build/*.o.txt
+        rm -rf build/*.o build/*.elf build/*.txt
 
 .PHONY: dirs clean

trunk/user/ksh/ksh.c

@@ -380 +380 @@
     if( pid == 0 )
     {
-                printf("  error: ilegal pid format\n" );
+                printf("  error: kernel process 0 cannot be killed\n" );
         }
 
         if( kill( pid , SIGKILL ) )
     {
-                printf("  error: unable to kill process %x\n", pid );
+                printf("  error: process %x cannot be killed\n", pid );
         }
 }   // end cmd_kill()
@@ -421 +421 @@
     {
         printf("  error: ksh process unable to fork\n");
+        return;
     }
     else if (ret_fork == 0)      // it is the CHILD process 
@@ -433 +434 @@
         {
             printf("  error: new process unable to exec <%s>\n", pathname );
-            exit(0);
+            return;
         }   
         } 
@@ -445 +446 @@
         if( rcv_pid == new_pid )
         {
-            printf("\n\n   exit %s / status = %x\n\n", pathname, (status &0xFF) );
+            printf("\n\n   %s normal termination / status = %x\n\n",
+            pathname , (status &0xFF) );
+            return;
         }
         else
         {
-            printf("\n\n   abnormal termination for %s \n\n", pathname );
+            printf("\n\n   %s abnormal termination / status = %x\n\n",
+            pathname , (status &0xFF) );
+            return;
         }
     }
-                 
 }   // end cmd_load
 
@@ -689 +693 @@
         ptr   = 0;
 
-        printf( "~~~ shell ~~~\n\n" );
+        printf( "\n\n~~~ shell ~~~\n\n" );
 
         // command buffer initialisation