diff options
Diffstat (limited to 'winsup/cygwin/cygthread.cc')
| -rw-r--r-- | winsup/cygwin/cygthread.cc | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/winsup/cygwin/cygthread.cc b/winsup/cygwin/cygthread.cc index 251fe5e3c..4ed0d52cf 100644 --- a/winsup/cygwin/cygthread.cc +++ b/winsup/cygwin/cygthread.cc @@ -136,7 +136,9 @@ new (size_t) /* Search the threads array for an empty slot to use */ for (info = threads; info < threads + NTHREADS; info++) - if ((id = (DWORD) InterlockedExchange ((LPLONG) &info->avail, 0))) + if ((LONG) (id = (DWORD) InterlockedExchange ((LPLONG) &info->avail, -1)) < 0) + /* being considered */; + else if (id > 0) { #ifdef DEBUGGING if (info->__name) @@ -146,7 +148,9 @@ new (size_t) #endif goto out; } - else if (!info->id) + else if (info->id) + InterlockedExchange ((LPLONG) &info->avail, 0); + else { info->h = CreateThread (&sec_none_nih, 0, cygthread::stub, info, CREATE_SUSPENDED, &info->id); @@ -162,6 +166,7 @@ new (size_t) info = freerange (); /* exhausted thread pool */ out: + InterlockedExchange ((LPLONG) &info->avail, 0); cygthread_protect->release (); return info; } |