diff options
Diffstat (limited to 'lib/system/systhread.nim')
| -rwxr-xr-x | lib/system/systhread.nim | 21 |
1 files changed, 11 insertions, 10 deletions
diff --git a/lib/system/systhread.nim b/lib/system/systhread.nim index 583cd2a43..af001985e 100755 --- a/lib/system/systhread.nim +++ b/lib/system/systhread.nim @@ -7,12 +7,17 @@ # distribution, for details about the copyright. # -when defined(gcc) or defined(llvm_gcc): +const + hasThreadSupport = false # deactivate for now: thread stack walking + # is missing! + maxThreads = 256 + +when (defined(gcc) or defined(llvm_gcc)) and hasThreadSupport: proc sync_add_and_fetch(p: var int, val: int): int {. importc: "__sync_add_and_fetch", nodecl.} proc sync_sub_and_fetch(p: var int, val: int): int {. importc: "__sync_sub_and_fetch", nodecl.} -elif defined(vcc): +elif defined(vcc) and hasThreadSupport: proc sync_add_and_fetch(p: var int, val: int): int {. importc: "NimXadd", nodecl.} else: @@ -20,19 +25,18 @@ else: inc(p, val) result = p -const - isMultiThreaded* = true - maxThreads = 256 +var + isMultiThreaded: bool # true when prog created at least 1 thread proc atomicInc(memLoc: var int, x: int): int = - when isMultiThreaded: + when hasThreadSupport: result = sync_add_and_fetch(memLoc, x) else: inc(memLoc, x) result = memLoc proc atomicDec(memLoc: var int, x: int): int = - when isMultiThreaded: + when hasThreadSupport: when defined(sync_sub_and_fetch): result = sync_sub_and_fetch(memLoc, x) else: @@ -85,11 +89,8 @@ type TThreadFunc* = proc (closure: pointer) {.cdecl.} proc createThread*(t: var TThread, fn: TThreadFunc) = - nil proc destroyThread*(t: var TThread) = nil - - |