[hackers] [sbase] Use getpriority()/setpriority() instead of deprecated nice() || sin

From: <git_AT_suckless.org>
Date: Tue, 28 Jan 2014 18:20:44 +0100

commit 203b52c38a447e6e1cadcab4cd366cd5bd86be94
Author: sin <sin_AT_2f30.org>
Date: Tue Jan 28 17:10:09 2014 +0000

    Use getpriority()/setpriority() instead of deprecated nice()
    
    This is now similar to how renice(1) is implemented.

diff --git a/nice.c b/nice.c
index 7755b90..0ef6256 100644
--- a/nice.c
+++ b/nice.c
_AT_@ -3,6 +3,8 @@
 #include <limits.h>
 #include <stdio.h>
 #include <stdlib.h>
+#include <sys/resource.h>
+#include <sys/time.h>
 #include <unistd.h>
 #include "util.h"
 
_AT_@ -12,6 +14,7 @@ int
 main(int argc, char **argv)
 {
         long val = 10;
+ int savederrno;
 
         ARGBEGIN {
         case 'n':
_AT_@ -26,15 +29,18 @@ main(int argc, char **argv)
                 usage();
 
         errno = 0;
- nice((int)MAX(INT_MIN, MIN(val, INT_MAX)));
- if(errno != 0)
- perror("can't adjust niceness");
+ val += getpriority(PRIO_PROCESS, 0);
+ if (errno != 0)
+ weprintf("getpriority:");
+ val = MAX(PRIO_MIN, MIN(val, PRIO_MAX));
+ if (setpriority(PRIO_PROCESS, 0, val) != 0)
+ weprintf("setpriority:");
 
         /* POSIX specifies the nice failure still invokes the command */
         execvp(argv[0], argv);
- /* reached only on failure */
- perror(argv[0]);
- return (errno == ENOENT)? 127 : 126;
+ savederrno = errno;
+ weprintf("execvp %s:", argv[0]);
+ return (savederrno == ENOENT)? 127 : 126;
 }
 
 static void
Received on Tue Jan 28 2014 - 18:20:44 CET