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osproc: Define and select spawn/fork same way

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Previously startProcessAuxFork was defined even when it was unused, also the
compile time condition to select spawn vs fork was not always the same for
definitions and calls.

This change just defines the condition in one place as constant, then in other
places we just check for `when useProcessAuxSpawn`.
This commit is contained in:
Adam Strzelecki 2015-09-03 18:00:15 +02:00
commit a9f114cf13
1 changed files with 38 additions and 37 deletions
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13
lib/pure/osproc.nim
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@ -614,9 +614,12 @@ elif not defined(useNimRtl):
optionPoStdErrToStdOut: bool optionPoStdErrToStdOut: bool
{.deprecated: [TStartProcessData: StartProcessData].} {.deprecated: [TStartProcessData: StartProcessData].}
when not defined(useFork): const useProcessAuxSpawn = declared(posix_spawn) and not defined(useFork) and
not defined(useClone) and not defined(linux)
when useProcessAuxSpawn:
proc startProcessAuxSpawn(data: StartProcessData): Pid {. proc startProcessAuxSpawn(data: StartProcessData): Pid {.
tags: [ExecIOEffect, ReadEnvEffect], gcsafe.} tags: [ExecIOEffect, ReadEnvEffect], gcsafe.}
else:
proc startProcessAuxFork(data: StartProcessData): Pid {. proc startProcessAuxFork(data: StartProcessData): Pid {.
tags: [ExecIOEffect, ReadEnvEffect], gcsafe.} tags: [ExecIOEffect, ReadEnvEffect], gcsafe.}
{.push stacktrace: off, profiler: off.} {.push stacktrace: off, profiler: off.}
@ -674,9 +677,7 @@ elif not defined(useNimRtl):
data.optionPoStdErrToStdOut = poStdErrToStdOut in options data.optionPoStdErrToStdOut = poStdErrToStdOut in options
data.workingDir = workingDir data.workingDir = workingDir
when useProcessAuxSpawn:
when declared(posix_spawn) and not defined(useFork) and
not defined(useClone) and not defined(linux):
pid = startProcessAuxSpawn(data) pid = startProcessAuxSpawn(data)
else: else:
pid = startProcessAuxFork(data) pid = startProcessAuxFork(data)
@ -706,7 +707,7 @@ elif not defined(useNimRtl):
discard close(pStdin[readIdx]) discard close(pStdin[readIdx])
discard close(pStdout[writeIdx]) discard close(pStdout[writeIdx])
when not defined(useFork): when useProcessAuxSpawn:
proc startProcessAuxSpawn(data: StartProcessData): Pid = proc startProcessAuxSpawn(data: StartProcessData): Pid =
var attr: Tposix_spawnattr var attr: Tposix_spawnattr
var fops: Tposix_spawn_file_actions var fops: Tposix_spawn_file_actions
@ -752,7 +753,7 @@ elif not defined(useNimRtl):
discard posix_spawnattr_destroy(attr) discard posix_spawnattr_destroy(attr)
chck res chck res
return pid return pid
else:
proc startProcessAuxFork(data: StartProcessData): Pid = proc startProcessAuxFork(data: StartProcessData): Pid =
if pipe(data.pErrorPipe) != 0: if pipe(data.pErrorPipe) != 0:
raiseOSError(osLastError()) raiseOSError(osLastError())