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use "systypes.use"
pkg sys =
type pid = int64 /* process id */
type scno = int64 /* syscall */
type fdopt = int64 /* fd options */
type fd = int32 /* fd */
type rflags = int32 /* rfork flags */
const Ordonly : fdopt = 0
const Owronly : fdopt = 1
const Ordwr : fdopt = 2
const Oexec : fdopt = 3
const Otrunc : fdopt = 16
const Ocexec : fdopt = 32
const Orclose : fdopt = 64
const Oexcl : fdopt = 0x1000
const Syssysr1 : scno = 0
const Sys_errstr : scno = 1
const Sysbind : scno = 2
const Syschdir : scno = 3
const Sysclose : scno = 4
const Sysdup : scno = 5
const Sysalarm : scno = 6
const Sysexec : scno = 7
const Sysexits : scno = 8
const Sys_fsession : scno = 9
const Sysfauth : scno = 10
const Sys_fstat : scno = 11
const Syssegbrk : scno = 12
const Sys_mount : scno = 13
const Sysopen : scno = 14
const Sys_read : scno = 15
const Sysoseek : scno = 16
const Syssleep : scno = 17
const Sys_stat : scno = 18
const Sysrfork : scno = 19
const Sys_write : scno = 20
const Syspipe : scno = 21
const Syscreate : scno = 22
const Sysfd2path : scno = 23
const Sysbrk_ : scno = 24
const Sysremove : scno = 25
const Sys_wstat : scno = 26
const Sys_fwstat : scno = 27
const Sysnotify : scno = 28
const Sysnoted : scno = 29
const Syssegattach : scno = 30
const Syssegdetach : scno = 31
const Syssegfree : scno = 32
const Syssegflush : scno = 33
const Sysrendezvous : scno = 34
const Sysunmount : scno = 35
const Sys_wait : scno = 36
const Syssemacquire : scno = 37
const Syssemrelease : scno = 38
const Sysseek : scno = 39
const Sysfversion : scno = 40
const Syserrstr : scno = 41
const Sysstat : scno = 42
const Sysfstat : scno = 43
const Syswstat : scno = 44
const Sysfwstat : scno = 45
const Sysmount : scno = 46
const Sysawait : scno = 47
const Syspread : scno = 50
const Syspwrite : scno = 51
const Systsemacquire : scno = 52
const Sys_nsec : scno = 53
const sysr1 : (->int)
const bind : (nm : byte[:], old : byte[:] -> int)
const chdir : (dir : byte[:] -> int)
const close : (fd : fd -> int)
const dup : (old : fd, new : fd -> fd)
const alarm : (msec : uint32 -> int)
const exits : (msg : byte[:] -> int)
const fauth : (fd : fd, name : byte[:] -> int)
const segbrk : (saddr : void#, addr : void# -> int)
const open : (path : byte[:], opt : fdopt -> fd)
const sleep : (msec : uint32 -> int)
const rfork : (rflags : rflags -> pid)
const pipe : (fds : fd[:] -> int)
const create : (path : byte[:], opt : fdopt, perm : int -> fd)
const fd2path : (fd : fd, path : byte[:] -> int)
const remove : (path : byte[:] -> int)
const notify : (fn : (a : void#, c : char# -> int) -> int)
const noted : (v : int32 -> int)
const segattach : (attr : int32, class : byte[:], va : void#, len : uint32 -> int)
const segdetach : (va : void# -> int)
const segfree : (va : void#, len : uint32 -> int)
const segflush : (va : void#, len : uint32 -> int)
const unmount : (name : byte[:], old : byte[:] -> int)
const errstr : (buf : byte[:] -> int)
const stat : (name : byte[:], edir : byte[:] -> int)
const fstat : (fd : fd, edir : byte[:] -> int)
const wstat : (name : byte[:], edir : byte[:] -> int)
const fwstat : (fd : byte[:], edir : byte[:] -> int)
const seek : (fd : fd, len : off, ty : int -> off)
const mount : (fd : fd, afd : fd, old : byte[:], flag : int32, aname : byte[:] -> int)
const await : (buf : byte[:] -> int)
const pread : (fd : fd, buf : byte[:], off : off -> size)
const pwrite : (fd : fd, buf : byte[:], off : off -> size)
const exec : (bin : byte[:], args : byte[:][:] -> int)
;;
/* asm stub from syscall.s */
extern const syscall : (scno : scno, args : ... -> int)
/* asm stubs from util+plan9.s */
extern const cstring : (str : byte[:] -> byte#)
extern const alloca : (sz : size -> byte#)
generic ptr = {x : @t; -> x castto(byte#)}
generic len32 = {a : @t[:]; -> a.len castto(uint32)}
const sysr1 = {; -> syscall(Syssysr1)}
const bind = {name, old; -> syscall(Sysbind, cstring(name), cstring(old))}
const chdir = {dir; -> syscall(Syschdir, cstring(dir)) }
const close = {fd; -> syscall(Sysclose, fd)}
const dup = {ofd, nfd; -> syscall(Sysdup, ofd, nfd) castto(fd)}
const alarm = {msec; -> syscall(Sysalarm, msec)}
const exits = {msg; -> syscall(Sysexits, cstring(msg))}
const fauth = {fd, aname; -> syscall(Sysfauth, fd, cstring(aname))}
const segbrk = {saddr, addr; -> syscall(Syssegbrk, saddr, addr)}
const open = {path, opt; -> syscall(Sysopen, cstring(path), opt) castto(fd)}
const sleep = {msec; -> syscall(Syssleep, msec)}
const rfork = {rflags; -> syscall(Sysrfork, rflags) castto(pid)}
const pipe = {fds; -> syscall(Syspipe, ptr(fds))}
const create = {path, mode, perm; -> syscall(Syscreate, cstring(path), mode, perm) castto(fd)}
const fd2path = {fd, buf; -> syscall(Sysfd2path, fd, ptr(buf), len32(buf))}
const remove = {path; -> syscall(Sysremove, cstring(path))}
const notify = {fn; -> syscall(Sysnotify, fn)} /* FIXME: this is likely to break... */
const noted = {v; -> syscall(Sysnoted, v)}
const segattach = {attr, class, va, len; -> syscall(Syssegattach, attr, cstring(class), va, len)}
const segdetach = {va; -> syscall(Syssegdetach, va)}
const segfree = {va, len; -> syscall(Syssegfree, va, len)}
const segflush = {va, len; -> syscall(Syssegfree, va, len)}
const unmount = {name, old; -> syscall(Sysunmount, cstring(name), cstring(old))}
const errstr = {buf; -> syscall(Syserrstr, ptr(buf), len32(buf))}
const stat = {name, edir; -> syscall(Sysstat, cstring(name), ptr(edir), len32(edir))}
const fstat = {fd, edir; -> syscall(Sysstat, fd, ptr(edir), len32(edir))}
const wstat = {name, edir; -> syscall(Syswstat, cstring(name), ptr(edir), len32(edir))}
const fwstat = {fd, edir; -> syscall(Sysfwstat, fd, ptr(edir), len32(edir))}
const mount = {fd, afd, old, flag, aname; -> syscall(Sysmount, fd, afd, cstring(old), flag, cstring(aname))}
const await = {buf; -> syscall(Sysawait, ptr(buf), len32(buf))}
const pread = {fd, buf, off; -> syscall(Syspread, fd, ptr(buf), len32(buf), off) castto(size)}
const pwrite = {fd, buf, off; -> syscall(Syspwrite, fd, ptr(buf), len32(buf), off) castto(size)}
const seek = {fd, n, ty
var ret : off
syscall(Sysseek, &ret, fd, n, ty)
-> ret
}
const exec = {bin, args
var p, cargs, i
/* we need an array of C strings. */
p = alloca((args.len + 1)*sizeof(byte#))
cargs = (ptr(p) castto(byte##))[:args.len + 1]
for i = 0; i < args.len; i++
cargs[i] = cstring(args[i])
;;
cargs[args.len] = ptr(0)
-> syscall(Sysexec, cstring(bin), cargs)
}
/* ??? do I care for now?
const brk_ = { }
const fversion = {fd, bufsz, vers, nvers; -> syscall(Sysfversion, fd, bufsz, }
const await = {;}
const rendezvous = {;}
const semacquire = {;}
const semrelease = {;}
const tsemacquire = {;}
*/
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