Add a "fork" of musl as //fusl.

fusl/include/sys/resource.h

+#ifndef _SYS_RESOURCE_H
+#define _SYS_RESOURCE_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <features.h>
+#include <sys/time.h>
+
+#define __NEED_id_t
+
+#ifdef _GNU_SOURCE
+#define __NEED_pid_t
+#endif
+
+#include <bits/alltypes.h>
+#include <bits/resource.h>
+
+typedef unsigned long long rlim_t;
+
+struct rlimit
+{
+        rlim_t rlim_cur;
+        rlim_t rlim_max;
+};
+
+struct rusage
+{
+        struct timeval ru_utime;
+        struct timeval ru_stime;
+        /* linux extentions, but useful */
+        long    ru_maxrss;
+        long    ru_ixrss;
+        long    ru_idrss;
+        long    ru_isrss;
+        long    ru_minflt;
+        long    ru_majflt;
+        long    ru_nswap;
+        long    ru_inblock;
+        long    ru_oublock;
+        long    ru_msgsnd;
+        long    ru_msgrcv;
+        long    ru_nsignals;
+        long    ru_nvcsw;
+        long    ru_nivcsw;
+        /* room for more... */
+        long    __reserved[16];
+};
+
+int getrlimit (int, struct rlimit *);
+int setrlimit (int, const struct rlimit *);
+int getrusage (int, struct rusage *);
+
+int getpriority (int, id_t);
+int setpriority (int, id_t, int);
+
+#ifdef _GNU_SOURCE
+int prlimit(pid_t, int, const struct rlimit *, struct rlimit *);
+#define prlimit64 prlimit
+#endif
+
+#define PRIO_MIN (-20)
+#define PRIO_MAX 20
+
+#define PRIO_PROCESS 0
+#define PRIO_PGRP    1
+#define PRIO_USER    2
+
+#define RUSAGE_SELF     0
+#define RUSAGE_CHILDREN 1
+
+#define RLIM_INFINITY (~0ULL)
+#define RLIM_SAVED_CUR RLIM_INFINITY
+#define RLIM_SAVED_MAX RLIM_INFINITY
+
+#define RLIMIT_CPU     0
+#define RLIMIT_FSIZE   1
+#define RLIMIT_DATA    2
+#define RLIMIT_STACK   3
+#define RLIMIT_CORE    4
+#ifndef RLIMIT_RSS
+#define RLIMIT_RSS     5
+#define RLIMIT_NPROC   6
+#define RLIMIT_NOFILE  7
+#define RLIMIT_MEMLOCK 8
+#define RLIMIT_AS      9
+#endif
+#define RLIMIT_LOCKS   10
+#define RLIMIT_SIGPENDING 11
+#define RLIMIT_MSGQUEUE 12
+#define RLIMIT_NICE    13
+#define RLIMIT_RTPRIO  14
+#define RLIMIT_NLIMITS 15
+
+#define RLIM_NLIMITS RLIMIT_NLIMITS
+
+#if defined(_LARGEFILE64_SOURCE) || defined(_GNU_SOURCE)
+#define RLIM64_INFINITY RLIM_INFINITY
+#define RLIM64_SAVED_CUR RLIM_SAVED_CUR
+#define RLIM64_SAVED_MAX RLIM_SAVED_MAX
+#define getrlimit64 getrlimit
+#define setrlimit64 setrlimit
+#define rlimit64 rlimit
+#define rlim64_t rlim_t
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif