Changeset d9fae235 in mainline for uspace/app/redir/redir.c

Timestamp:

2010-04-17T01:28:38Z (15 years ago)

Author:

Martin Decky <martin@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

9d6bfa5

Parents:

9256ad29

Message:

sysinfo overhaul

• cleanup (nicer data structures, use of SLAB allocator)
• add support for storing arbitrary binary data
• properly reimplement non-constant values (generated by functions)
• add support for non-constant subtrees (generated by functions)
• syscall ABI change, libc API change
• reflect changes in user code

libc: task_spawn() can now return error code

• reflect change in user code, print error strings after failed task_spawn()

uspace cleanup

• more use of string and other constants
• more use of str_error()
• unify error reporting in init

File:

• uspace/app/redir/redir.c (modified) (2 diffs)

uspace/app/redir/redir.c

@@ -42 +42 @@
 #include <stdio.h>
 #include <task.h>
+#include <str_error.h>
+
+#define NAME  "redir"
 
 static void usage(void)
 {
-        printf("Usage: redir [-i <stdin>] [-o <stdout>] [-e <stderr>] -- <cmd> [args ...]\n");
+        printf("Usage: %s [-i <stdin>] [-o <stdout>] [-e <stderr>] -- <cmd> [args ...]\n",
+            NAME);
 }
 
@@ -84 +88 @@
         args[argc] = NULL;
         
-        task_id_t id = task_spawn(argv[0], args);
+        int err;
+        task_id_t id = task_spawn(argv[0], args, &err);
         
         free(args);
         
         if (id == 0)
-                printf("Error spawning %s\n", argv[0]);
+                printf("%s: Error spawning %s (%s)\n", NAME, argv[0],
+                    str_error(err));
         
         return id;