diff options
| author | Christopher Faylor <me@cgf.cx> | 2003-04-04 05:58:06 +0000 |
|---|---|---|
| committer | Christopher Faylor <me@cgf.cx> | 2003-04-04 05:58:06 +0000 |
| commit | b410f1680ffb26c9c3f972a2f33acc0d4e2fe30c (patch) | |
| tree | 61761d463831462085e49ea3deaf304972547571 /winsup/cygwin/cygthread.cc | |
| parent | a61bf8c3693d99f90ec7e64860e8ba8c666b912c (diff) | |
| download | newlib-b410f1680ffb26c9c3f972a2f33acc0d4e2fe30c.zip newlib-b410f1680ffb26c9c3f972a2f33acc0d4e2fe30c.tar.gz newlib-b410f1680ffb26c9c3f972a2f33acc0d4e2fe30c.tar.bz2 | |
* cygthread.cc (operator new): Be more defensive when messing with threads that
are marked "unavailable".
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 251fe5e..4ed0d52 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; } |