Increases or decreases process priority relative to the process
current priority by the amount of the argument. This function is
nonreentrant.
Format
#include <unistd.h>
int nice (int increment);
Argument
- increment
- As a positive argument, decreases priority; as a negative
argument, increases priority. Issuing nice(0) restores the base
priority. The resulting priority cannot be less than 1, or greater
than the process's base priority. If it is, the nice function
quietly does nothing.
Description
When a process calls the vfork function, the resulting child
inherits the parent's priority.
See also vfork in this section.
Return Values
| 0 | Indicates success. |
| -1 | Indicates failure. |
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