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GETRLIMITUSAGE(2) System Calls Manual GETRLIMITUSAGE(2) NAME getrlimitusage -- Query usage of the current process' limited resources LIBRARY Standard C Library (libc, -lc) SYNOPSIS #include <sys/resource.h> int getrlimitusage(unsigned which, int flags, rlim_t *res); DESCRIPTION The getrlimitusage system call allows the process to query current con- sumption of the resources limited by the setrlimit(2) call. The which argument specifies the resource, same as for getrlimit(2) and setrlimit(2) calls, see their man page for the list of enforced re- source types. The flags argument modifies the behavior of the call in the following ways: GETRLIMITUSAGE_EUID Query the resource usage for user identified by effective UID of the process, instead of the real UID (which is default for accounting). RETURN VALUES Upon successful completion, the value 0 is returned; otherwise the value -1 is returned and the global variable errno is set to indicate the error. ERRORS The getrlimitusage() system call will fail if: [EFAULT] The address specified for res is invalid. [EINVAL] The resource specified to getrlimitusage() in the which argument is unknown. [ENXIO] The resource specified to getrlimitusage() in the which argument is not accounted, but only enforced in specific situations. Examples of such resources are RLIMIT_FSIZE and RLIMIT_CORE. SEE ALSO procstat(1), getrlimit(2), setrlimit(2) HISTORY The getrlimitusage() system call appeared in FreeBSD 14.2. FreeBSD 15.0 October 24, 2025 GETRLIMITUSAGE(2)
NAME | LIBRARY | SYNOPSIS | DESCRIPTION | RETURN VALUES | ERRORS | SEE ALSO | HISTORY
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