accidentally delet'd the wrong file

exec/init.lua

@@ -0,0 +1,8 @@
+xpcall(function()
+io.input("/dev/tty0")
+io.output("/dev/tty0") 
+os.setenv("PWD","/boot")
+io.write("PsychOS v2.0a1 - ")
+print(tostring(math.floor(computer.totalMemory()/1024)).."K RAM")
+os.spawnfile("/boot/exec/shell.lua")
+end,function(e) dprint(e) end,"init test")

exec/ps.lua

@@ -1,4 +1,5 @@
-print("PID# VTY# Name")
+print("PID# Parent Name")
-for k,v in pairs(tTasks) do
+for k,v in pairs(os.tasks()) do
- print(string.format("%4d %4d %s",k,v.e.t or 0,v.n))
+ local t = os.taskInfo(v)
+ print(string.format("%4d %4d %s",k,v.parent,v.name))
 end

module/buffer.lua

@@ -0,0 +1,171 @@
+buffer = {}
+local metatable = {
+ __index = buffer,
+ __metatable = "file",
+ __close = buffer.close
+}
+
+function buffer.new(mode, stream)
+ local result = {
+  closed = false,
+  tty = false,
+  mode = {},
+  stream = stream,
+  bufferRead = "",
+  bufferWrite = "",
+  bufferSize = math.max(512, math.min(8 * 1024, computer.freeMemory() / 8)),
+  bufferMode = "full",
+  readTimeout = math.huge,
+ }
+ mode = mode or "r"
+ for i = 1, mode:len() do
+  result.mode[mode:sub(i, i)] = true
+ end
+ -- when stream closes, result should close first
+ -- when result closes, stream should close after
+ -- when stream closes, it is removed from the proc
+ stream.close = setmetatable({close = stream.close,parent = result},{__call = buffer.close})
+ return setmetatable(result, metatable)
+end
+
+function buffer:close()
+ -- self is either the buffer, or the stream.close callable
+ local meta = getmetatable(self)
+ if meta == metatable.__metatable then
+  return self.stream:close()
+ end
+ local parent = self.parent
+
+ if parent.mode.w or parent.mode.a then
+  parent:flush()
+ end
+ parent.closed = true
+ return self.close(parent.stream)
+end
+
+function buffer:flush()
+ if #self.bufferWrite > 0 then
+  local tmp = self.bufferWrite
+  self.bufferWrite = ""
+  local result, reason = self.stream:write(tmp)
+  if not result then
+   return nil, reason or "bad file descriptor"
+  end
+ end
+
+ return self
+end
+
+function buffer:lines(...)
+ local args = table.pack(...)
+ return function()
+  local result = table.pack(self:read(table.unpack(args, 1, args.n)))
+  if not result[1] and result[2] then
+   error(result[2])
+  end
+  return table.unpack(result, 1, result.n)
+ end
+end
+
+local function readChunk(self)
+ if computer.uptime() > self.timeout then
+  error("timeout")
+ end
+ local result, reason = self.stream:read(math.max(1,self.bufferSize))
+ if result then
+  self.bufferRead = self.bufferRead .. result
+  return self
+ else -- error or eof
+  return result, reason
+ end
+end
+
+function buffer:readLine(chop, timeout)
+ self.timeout = timeout or (computer.uptime() + self.readTimeout)
+ local start = 1
+ while true do
+  local buf = self.bufferRead
+  local i = buf:find("[\r\n]", start)
+  local c = i and buf:sub(i,i)
+  local is_cr = c == "\r"
+  if i and (not is_cr or i < #buf) then
+   local n = buf:sub(i+1,i+1)
+   if is_cr and n == "\n" then
+    c = c .. n
+   end
+   local result = buf:sub(1, i - 1) .. (chop and "" or c)
+   self.bufferRead = buf:sub(i + #c)
+   return result
+  else
+   start = #self.bufferRead - (is_cr and 1 or 0)
+   local result, reason = readChunk(self)
+   if not result then
+    if reason then
+     return result, reason
+    else -- eof
+     result = #self.bufferRead > 0 and self.bufferRead or nil
+     self.bufferRead = ""
+     return result
+    end
+   end
+  end
+  coroutine.yield()
+ end
+end
+
+function buffer:read(...)
+ if not self.mode.r then
+  return nil, "read mode was not enabled for this stream"
+ end
+
+ if self.mode.w or self.mode.a then
+  self:flush()
+ end
+
+ if select("#", ...) == 0 then
+  return self:readLine(true)
+ end
+ return self:formatted_read(readChunk, ...)
+end
+
+function buffer:setvbuf(mode, size)
+ mode = mode or self.bufferMode
+ size = size or self.bufferSize
+
+ assert(mode == "no" or mode == "full" or mode == "line",
+  "bad argument #1 (no, full or line expected, got " .. tostring(mode) .. ")")
+ assert(mode == "no" or type(size) == "number",
+  "bad argument #2 (number expected, got " .. type(size) .. ")")
+
+ self.bufferMode = mode
+ self.bufferSize = size
+
+ return self.bufferMode, self.bufferSize
+end
+
+function buffer:write(...)
+ if self.closed then
+  return nil, "bad file descriptor"
+ end
+ if not self.mode.w and not self.mode.a then
+  return nil, "write mode was not enabled for this stream"
+ end
+ local args = table.pack(...)
+ for i = 1, args.n do
+  if type(args[i]) == "number" then
+   args[i] = tostring(args[i])
+  end
+  checkArg(i, args[i], "string")
+ end
+
+ for i = 1, args.n do
+  local arg = args[i]
+  local result, reason
+  result, reason = self.stream:write(arg)
+  if not result then
+   return nil, reason
+  end
+ end
+
+ return self
+end

module/createterms.lua

@@ -1,19 +0,0 @@
-local ts = {}
-for a,_ in component.list("screen") do
- ts[#ts+1] = a
-end
-local ttyn = 0
-for a,_ in component.list("gpu") do
- local r,w = vtemu(a,table.remove(ts,1))
--- fd[#fd+1] = {["read"]=r,["write"]=w,["close"]=function() w("\27[2J\27[H") end,["t"]="t"}
- iofs.register("tty"..tostring(ttyn),function() return r,w,function() w("\27[2J\27[H") end end)
- local f = io.open("/iofs/tty"..tostring(ttyn),"rw")
- fd[f.fd].t = "t"
- ttyn = ttyn + 1
-end
-do
- iofs.register("syslog",function() return function() return "" end, function(msg) syslog(msg,nil,tTasks[cPid].n) end, function() return true end end)
-end
-if #fd < 1 then
- io.open("/iofs/syslog","rw")
-end

module/devfs.lua

@@ -0,0 +1,68 @@
+devfs = {}
+devfs.files = {}
+devfs.fds = {}
+devfs.nextfd = 0
+devfs.component = {}
+
+local function rfalse()
+ return false
+end
+function devfs.component.getLabel()
+ return "devfs"
+end
+devfs.component.spaceUsed, devfs.component.spaceTotal, devfs.component.isReadOnly, devfs.component.isDirectory,devfs.component.size, devfs.component.setLabel = function() return computer.totalMemory()-computer.freeMemory() end, computer.totalMemory, rfalse, rfalse, rfalse, rfalse
+
+function devfs.component.exists(fname)
+ return devfs.files[fname] ~= nil
+end
+
+function devfs.component.list()
+ local t = {}
+ for k,v in pairs(devfs.files) do
+  t[#t+1] = k
+ end
+ return t
+end
+
+function devfs.component.open(fname, mode)
+ fname=fname:gsub("/","")
+ if devfs.files[fname] then
+  local r,w,c,s = devfs.files[fname](mode)
+  devfs.fds[devfs.nextfd] = {["read"]=r or rfalse,["write"]=w or rfalse,["seek"]=s or rfalse,["close"]=c or rfalse}
+  devfs.nextfd = devfs.nextfd + 1
+  return devfs.nextfd - 1
+ end
+ return false
+end
+
+function devfs.component.read(fd,count)
+ if devfs.fds[fd] then
+  return devfs.fds[fd].read(count)
+ end
+end
+function devfs.component.write(fd,data)
+ if devfs.fds[fd] then
+  return devfs.fds[fd].write(data)
+ end
+end
+function devfs.component.close(fd)
+ if devfs.fds[fd] then
+  devfs.fds[fd].close()
+ end
+ devfs.fds[fd] = nil
+end
+function devfs.component.seek(fd,...)
+ if devfs.fds[fd] then
+  return devfs.fds[fd].seek(...)
+ end
+end
+function devfs.component.remove(fname)
+end
+
+function devfs.register(fname,fopen) -- Register a new devfs node with the name *fname* that will run the function *fopen* when opened. This function should return a function for read, a function for write, function for close, and optionally, a function for seek, in that order.
+ devfs.files[fname] = fopen
+end
+
+fs.mounts.dev = devfs.component
+
+--#include "module/devfs/null.lua"

module/devfs/cons.lua

@@ -0,0 +1,8 @@
+devfs.register("cons",function()
+ return function()
+ end,
+ function()
+ end,
+ function()
+ end
+end)

module/devfs/null.lua

@@ -0,0 +1,3 @@
+devfs.register("null",function()
+ return function() end, function() end, function() end
+end)

module/devfs/syslog.lua

@@ -0,0 +1,2 @@
+devfs.register("syslog",function()
+ return function() end, syslog, function() end end)

module/dispmanager.lua

@@ -1,51 +0,0 @@
-do
-local tG,ttyn = {}, 0
-
-local function checkUnused(addr) -- returns false if a screen *addr* is already allocated to a GPU
- for k,v in pairs(tG) do
-  if v == addr then
-   return false
-  end
- end
- return true
-end
-local function findNextDisplay() -- finds the next available screen, or nil if there are no available screens
- for a,_ in component.list("screen") do
-  if checkUnused(a) then
-   return a
-  end
- end
- return nil
-end
-
-for file in ipairs(fs.list("/boot/cfg/disp/") or {}) do -- allows files in /boot/cfg/disp with filenames as GPU addresses to bind to specific screens
- if component.proxy(file) then
-  local f = io.open("/boot/cfg/disp/"..file)
-  if f then
-   local sA = file:read()
-   if checkUnused(sA) then
-    tG[file] = sA
-   end
-   f:close()
-  end
- end
-end
-
-for a,_ in component.list("gpu") do -- allocate a screen to every unused GPU
- tG[a] = findNextDisplay()
-end
-
-for gpu,screen in pairs(tG) do
- local r,w = vtemu(gpu,screen)
- iofs.register("tty"..tostring(ttyn),function() return r,w,function() w("\27[2J\27[H") end end)
- local f = io.open("/iofs/tty"..tostring(ttyn),"rw")
- fd[f.fd].t = "t"
- ttyn = ttyn + 1
-end
-do
- iofs.register("syslog",function() return function() return "" end, function(msg) syslog(msg,nil,tTasks[cPid].n) end, function() return true end end)
-end
-if #fd < 1 then
- io.open("/iofs/syslog","rw")
-end
-end

module/init.lua

@@ -1,20 +1,12 @@
-os.spawn(function() print(pcall(function()
+--#include "module/syslog.lua"
-print(_OSVERSION,tostring(math.floor(computer.totalMemory()/1024)).."K memory")
+--#include "module/sched.lua"
-os.setenv("PWD","/boot")
+--#include "module/buffer.lua"
-local f = fs.open("/boot/init.txt","rb")
+--#include "module/fs.lua"
-if f then
+--#include "module/io.lua"
- local fc = f:read("*a")
+--#include "module/devfs.lua"
- f:close()
+--#include "module/devfs/syslog.lua"
- for line in fc:gmatch("[^\n]+") do
+--#include "module/loadfile.lua"
-  print("Starting service "..line)
+--#include "module/term.lua"
-  spawnfile("/boot/service/"..line,line)
+os.spawnfile("/boot/exec/init.lua","init")
- end
+
-end
+os.sched()
-for k,v in pairs(fd) do
- if v.t == "t" then
-  os.setenv("t",k)
-  print("Spawning a shell for terminal #"..tostring(k))
-  spawnfile("/boot/exec/shell.lua","shell [local:"..tostring(k).."]")
- end
-end
-end)) end,"init")

module/io.lua

@@ -1,65 +1,116 @@
 do
-_G.fd,_G.io = {},{}
+io = {}
-function io.write(d) -- writes *d* to stdout
+
- fd[os.getenv("t") or 1].write(d)
+function io.close(file)
+ return (file or io.output()):close()
 end
-function io.read(d,b) -- reads *d* from stdin, until something is returned, or b is true
+
- local r = ""
+function io.flush()
- repeat
+ return io.output():flush()
-  r=fd[os.getenv("t") or 1].read(d)
-  coroutine.yield()
- until r or b
- return r
 end
-function print(...) -- outputs its arguments to stdout, separated by newlines
+
- for k,v in pairs({...}) do
+function io.lines(filename, ...)
+ if filename then
+  local file, reason = io.open(filename)
+  if not file then
+   error(reason, 2)
+  end
+  local args = table.pack(...)
+  return function()
+   local result = table.pack(file:read(table.unpack(args, 1, args.n)))
+   if not result[1] then
+    if result[2] then
+     error(result[2], 2)
+    else -- eof
+     file:close()
+     return nil
+    end
+   end
+   return table.unpack(result, 1, result.n)
+  end
+ else
+ return io.input():lines()
+ end
+end
+
+function io.open(path, mode)
+ local stream, result = fs.open(path, mode)
+ if stream then
+  return buffer.new(mode, stream)
+ else
+  return nil, result
+ end
+end
+
+local fdt = {[0]="STDIN","STDOUT","STDERR"}
+local function getfh(fd)
+ return os.getenv(fdt[fd] or "FILE"..tostring(fd))
+end
+local function setfh(fd,fh)
+ os.setenv(fdt[fd] or "FILE"..tostring(fd),fh)
+end
+
+function io.stream(fd,file,mode)
+ checkArg(1,fd,'number')
+ assert(fd>=0,'fd must be >= 0. 0 is input, 1 is stdout, 2 is stderr')
+ if file then
+  if type(file) == "string" then
+   local result, reason = io.open(file, mode)
+   if not result then
+    error(reason, 2)
+   end
+   file = result
+  elseif not io.type(file) then
+   error("bad argument #1 (string or file expected, got " .. type(file) .. ")", 2)
+  end
+  setfh(fd,file)
+ end
+ return getfh(fd)
+end
+
+function io.input(file)
+ return io.stream(0, file, 'r')
+end
+
+function io.output(file)
+ return io.stream(1, file,'w')
+end
+
+function io.error(file)
+ return io.stream(2, file,'w')
+end
+
+function io.read(...)
+ return io.input():read(...)
+end
+
+function io.tmpfile()
+ local name = os.tmpname()
+ if name then
+  return io.open(name, "a")
+ end
+end
+
+function io.type(object)
+ if type(object) == "table" then
+  if getmetatable(object) == "file" then
+   if object.stream.handle then
+    return "file"
+   else
+    return "closed file"
+   end
+  end
+ end
+ return nil
+end
+
+function io.write(...)
+  return io.output():write(...)
+end
+
+function print(...)
+ for k,v in ipairs({...}) do
   io.write(tostring(v).."\n")
  end
 end
-local function fdw(f,d)
- fd[f.fd].write(d)
-end
-local function fdr(f,d)
- return fd[f.fd].read(d)
-end
-local function fdc(f)
- fd[f.fd].close()
- fd[f.fd] = nil
-end
-function io.newfd() -- creates a new file descriptor and returns it plus its ID
- local nfd=#fd+1
- fd[nfd] = {}
- return nfd,fd[nfd]
-end
-local function fdfile(f,m) -- create a fd from a file
- local e,fobj = pcall(fs.open,f,m)
- if e and fobj then
-  local fdi, fdo =io.newfd()
-  if fobj.read then
-   function fdo.read(d)
-    return fobj:read(d)
-   end
-  end
-  if fobj.write then
-   function fdo.write(d)
-    return fobj:write(d)
-   end
-  end
-  function fdo.close()
-   fobj:close()
-  end
-  return fdi
- end
- return false
-end
-function io.open(f,m) -- opens file or file descriptor *f* with mode *m*
- if type(f) == "string" then
-  f = fdfile(f,m)
- end
- if fd[f] then
-  local t = {["close"]=fdc,["read"]=fdr,["write"]=fdw,["fd"]=f,["mode"]=m}
-  return t
- end
- return false
-end
 end

module/iofs.lua

@@ -1,64 +0,0 @@
-iofs = {}
-iofs.files = {}
-iofs.fds = {}
-iofs.nextfd = 0
-iofs.component = {}
-
-local function rfalse()
- return false
-end
-function iofs.component.getLabel()
- return "iofs"
-end
-iofs.component.spaceUsed, iofs.component.spaceTotal, iofs.component.isReadOnly, iofs.component.isDirectory,iofs.component.size, iofs.component.setLabel = function() return computer.totalMemory()-computer.freeMemory() end, computer.totalMemory, rfalse, rfalse, rfalse, rfalse
-
-function iofs.component.exists(fname)
- return iofs.files[fname] ~= nil
-end
-
-function iofs.component.list()
- local t = {}
- for k,v in pairs(iofs.files) do
-  t[#t+1] = k
- end
- return t
-end
-
-function iofs.component.open(fname, mode)
- fname=fname:gsub("/","")
- if iofs.files[fname] then
-  local r,w,c,s = iofs.files[fname](mode)
-  iofs.fds[iofs.nextfd] = {["read"]=r or rfalse,["write"]=w or rfalse,["seek"]=s or rfalse,["close"]=c or rfalse}
-  iofs.nextfd = iofs.nextfd + 1
-  return iofs.nextfd - 1
- end
- return false
-end
-
-function iofs.component.read(fd,count)
- if iofs.fds[fd] then
-  return iofs.fds[fd].read(count)
- end
-end
-function iofs.component.write(fd,data)
- if iofs.fds[fd] then
-  return iofs.fds[fd].write(data)
- end
-end
-function iofs.component.close(fd)
- if iofs.fds[fd] then
-  iofs.fds[fd].close()
- end
- iofs.fds[fd] = nil
-end
-function iofs.component.seek(fd,...)
- if iofs.fds[fd] then
-  return iofs.fds[fd].seek(...)
- end
-end
-
-function iofs.register(fname,fopen) -- Register a new iofs node with the name *fname* that will run the function *fopen* when opened. This function should return a function for read, a function for write, function for close, and optionally, a function for seek, in that order.
- iofs.files[fname] = fopen
-end
-
-fs.mounts.iofs = iofs.component

module/loadfile.lua

@@ -7,8 +7,8 @@ end
 function runfile(p,...) -- runs file *p* with arbitrary arguments in the current thread
  return loadfile(p)(...)
 end
-function spawnfile(p,n) -- spawns a new process from file *p* with name *n*
+function os.spawnfile(p,n) -- spawns a new process from file *p* with name *n*
- return os.spawn(function() print(pcall(loadfile(p))) end,n)
+ return os.spawn(function() xpcall(loadfile(p),function(e) dprint(e.."\n"..debug.traceback) end) end,n)
 end
 function require(f) -- searches for a library with name *f* and returns what the library returns, if possible
  local lib = os.getenv("LIB") or "/boot/lib"

module/sched.lua

@@ -1,7 +1,13 @@
 do
-tTasks,nPid,nTimeout,cPid = {},1,0,0 -- table of tasks, next process ID, event timeout, current PID
+local tTasks,nPid,nTimeout,cPid = {},1,0,0 -- table of tasks, next process ID, event timeout, current PID
 function os.spawn(f,n) -- creates a process from function *f* with name *n*
- tTasks[nPid] = {["c"]=coroutine.create(f),["n"]=n,["p"]=nPid,e={}}
+ tTasks[nPid] = {
+  c=coroutine.create(f), -- actual coroutine
+  n=n, -- process name
+  p=nPid, -- process PID
+  P=cPid, -- parent PID
+  e={} -- environment variables
+ }
  if tTasks[cPid] then
   for k,v in pairs(tTasks[cPid].e) do
    tTasks[nPid].e[k] = tTasks[nPid].e[k] or v
@@ -13,7 +19,21 @@ end
 function os.kill(pid) -- removes process *pid* from the task list
  tTasks[pid] = nil
 end
-function sched() -- the actual scheduler function
+function os.pid()
+ return cPid
+end
+function os.tasks()
+ local rt = {}
+ for k,v in pairs(tTasks) do
+  rt[#rt+1] = k
+ end
+ return rt
+end
+function os.taskInfo(pid)
+ return {name=tTasks[pid].n,parent=tTasks[pid].P}
+end
+function os.sched() -- the actual scheduler function
+ os.sched = nil
  while #tTasks > 0 do
   local tEv = {computer.pullSignal(nTimeout)}
   for k,v in pairs(tTasks) do

module/spawnprompt.lua

@@ -1,16 +0,0 @@
-os.spawn(function()
-print(_OSVERSION,tostring(computer.totalMemory()/1024).."K memory")
-for k,v in pairs(fd) do
- if v.t == "t" then
-  os.setenv("t") = k
-  print("Spawning Lua prompt for "..tostring(k))
-  os.setenv("PWD","/boot")
-  os.spawn(function() print(pcall(function() while true do
-   io.write(_VERSION.."> ")
-   tResult = {pcall(load(io.read()))}
-   for k,v in pairs(tResult) do
-    print(v)
-   end
-  end end)) end,"lua prompt")
- end
-end end,"init")

module/syslog.lua

@@ -1,3 +1,5 @@
+dprint=dprint or function() end
+
 syslog = {}
 syslog.emergency = 0
 syslog.alert = 1
@@ -9,6 +11,7 @@ syslog.info = 6
 syslog.debug = 7
 
 setmetatable(syslog,{__call = function(_,msg, level, service)
- level, service = level or syslog.info, service or process.info().path
+ level, service = level or syslog.info, service or os.taskInfo(os.pid()).name or "unknown"
+ dprint(string.format("syslog: [%s:%d/%d] %s",service,os.pid(),level,msg))
  computer.pushSignal("syslog",msg, level, service)
 end})

module/term.lua

@@ -0,0 +1,5 @@
+--#include "module/vt-task.lua"
+do
+local r,w = vtemu(component.list("gpu")(),component.list("screen")())
+devfs.register("tty0", function() return r,w,function() end end)
+end

module/vt-task.lua

@@ -1,13 +1,15 @@
+do
+--#include "module/vt100.lua"
 function vtemu(gpua,scra)
- local gpu,scr = component.proxy(gpua),component.proxy(scra)
+ local gpu = component.proxy(gpua)
  gpu.bind(scra)
  local write = vt100emu(gpu)
  local kba = {}
- for k,v in ipairs(scr.getKeyboards()) do
+ for k,v in ipairs(component.invoke(scra,"getKeyboards")) do
   kba[v]=true
  end
  local buf = ""
- os.spawn(function()
+ os.spawn(function() dprint(pcall(function()
   while true do
    local ty,ka,ch = coroutine.yield()
    if ty == "key_down" and kba[ka] then
@@ -19,27 +21,17 @@ function vtemu(gpua,scra)
      end
     elseif ch > 0 then
      write(string.char(ch))
-     buf = buf .. string.char(ch)
+     buf=buf..string.char(ch)
     end
    end
   end
- end,"keyboard daemon for "..gpua:sub(1,8)..":"..scra:sub(1,8))
+ end)) end,string.format("ttyd[%s:%s]",gpua:sub(1,8),scra:sub(1,8)))
- local function read(n)
+ local function bread()
-  n = n or "\n"
+  local n = buf:find("\n")
-  local rdata = ""
+  if not n then return nil end
-  if type(n) == "number" then
+  r, buf = buf:sub(1,n), buf:sub(n+1)
-   rdata = buf:sub(1,n)
+  return r
-   return rdata
-  else
-   if n == "*a" then
-    rdata = buf
-    buf = ""
-    return rdata
-   end
-   local pr,po = buf:match("(.-)"..n.."(.*)")
-   buf = po or buf
-   return pr
-  end
  end
- return read,write
+ return bread, write, function() io.write("\27[2J\27[H") end
+end
 end

module/vt100.lua

@@ -58,9 +58,9 @@ function vt100emu(gpu) -- takes GPU component proxy *gpu* and returns a function
      cx, cy = sx, sy
      mode = "n"
     elseif cc == "H" then -- cursor home or to
-     local tx, ty = cs:match("(.);(.)")
+     local tx, ty = cs:match("(.-);(.-)")
-     tx, ty = tx or "\1", ty or "\1"
+     tx, ty = tx or "1", ty or "1"
-     cx, cy = string.byte(tx), string.byte(ty)
+     cx, cy = tonumber(tx), tonumber(ty)
      mode = "n"
     elseif cc == "A" then -- cursor up
      cy = cy - string.byte(n)