tposix.nim « stdlib « tests - Nim - This repository contains the Nim compiler, Nim's stdlib, tools, and documentation. (mirror)

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path: root/tests/stdlib/tposix.nim

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# Test Posix interface

when not defined(windows):

  import posix

  var
    u: Tutsname

  discard uname(u)

  writeLine(stdout, u.sysname)
  writeLine(stdout, u.nodename)
  writeLine(stdout, u.release)
  writeLine(stdout, u.machine)

n>emulatedThreadVars(): bool = result = {optThreads, optTlsEmulation} <= gGlobalOptions proc accessThreadLocalVar(p: BProc, s: PSym) = if emulatedThreadVars() and not p.threadVarAccessed: p.threadVarAccessed = true incl p.module.flags, usesThreadVars addf(p.procSec(cpsLocals), "\tNimThreadVars* NimTV_;$n", []) add(p.procSec(cpsInit), ropecg(p.module, "\tNimTV_ = (NimThreadVars*) #GetThreadLocalVars();$n")) var nimtv: Rope # Nim thread vars; the struct body nimtvDeps: seq[PType] = @[] # type deps: every module needs whole struct nimtvDeclared = initIntSet() # so that every var/field exists only once # in the struct # 'nimtv' is incredibly hard to modularize! Best effort is to store all thread # vars in a ROD section and with their type deps and load them # unconditionally... # nimtvDeps is VERY hard to cache because it's not a list of IDs nor can it be # made to be one. proc declareThreadVar(m: BModule, s: PSym, isExtern: bool) = if emulatedThreadVars(): # we gather all thread locals var into a struct; we need to allocate # storage for that somehow, can't use the thread local storage # allocator for it :-( if not containsOrIncl(nimtvDeclared, s.id): nimtvDeps.add(s.loc.t) addf(nimtv, "$1 $2;$n", [getTypeDesc(m, s.loc.t), s.loc.r]) else: if isExtern: add(m.s[cfsVars], "extern ") if optThreads in gGlobalOptions: add(m.s[cfsVars], "NIM_THREADVAR ") add(m.s[cfsVars], getTypeDesc(m, s.loc.t)) addf(m.s[cfsVars], " $1;$n", [s.loc.r]) proc generateThreadLocalStorage(m: BModule) = if nimtv != nil and (usesThreadVars in m.flags or sfMainModule in m.module.flags): for t in items(nimtvDeps): discard getTypeDesc(m, t) addf(m.s[cfsSeqTypes], "typedef struct {$1} NimThreadVars;$n", [nimtv]) proc generateThreadVarsSize(m: BModule) = if nimtv != nil: let externc = if gCmd == cmdCompileToCpp or sfCompileToCpp in m.module.flags: "extern \"C\" " else: "" addf(m.s[cfsProcs], "$#NI NimThreadVarsSize(){return (NI)sizeof(NimThreadVars);}$n", [externc.rope])