diff options
author | Eric Andersen <andersen@codepoet.org> | 2004-01-21 23:27:48 +0000 |
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committer | Eric Andersen <andersen@codepoet.org> | 2004-01-21 23:27:48 +0000 |
commit | 6334e558ab33ee1e54ed33740881a2798c5915c2 (patch) | |
tree | 5d3253d5928343d2a37cc55be7a9c35244b4ab42 /libc/sysdeps/linux/common/nice.c | |
parent | 9bafaa6fe7ded400aac87526ce615f1875ce2673 (diff) |
Split up syscalls.c, since it had grown to be quite large and ugly.
-Erik
Diffstat (limited to 'libc/sysdeps/linux/common/nice.c')
-rw-r--r-- | libc/sysdeps/linux/common/nice.c | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/libc/sysdeps/linux/common/nice.c b/libc/sysdeps/linux/common/nice.c new file mode 100644 index 000000000..087463b8c --- /dev/null +++ b/libc/sysdeps/linux/common/nice.c @@ -0,0 +1,37 @@ +/* vi: set sw=4 ts=4: */ +/* + * nice() for uClibc + * + * Copyright (C) 2000-2004 by Erik Andersen <andersen@codpoet.org> + * + * GNU Library General Public License (LGPL) version 2 or later. + */ + +#include "syscalls.h" +#include <unistd.h> +#ifdef __NR_nice +_syscall1(int, nice, int, inc); +#else +#include <sys/resource.h> +int nice(int incr) +{ + int save, prio, result; + + save = errno; + __set_errno(0); + prio = getpriority(PRIO_PROCESS, 0); + if (prio == -1) { + if (errno != 0) { + return -1; + } else { + __set_errno(save); + } + } + result = setpriority(PRIO_PROCESS, 0, prio + incr); + if (result != -1) { + return prio + incr; + } else { + return -1; + } +} +#endif |