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use runtime check for thread support

This commit is contained in:
David Rose 2007-07-16 17:23:49 +00:00
parent 4c3bbe70c8
commit 0510edc734
1 changed files with 10 additions and 13 deletions
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23
panda/src/net/connectionWriter.cxx
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@ -61,21 +61,18 @@ ConnectionWriter::
ConnectionWriter(ConnectionManager *manager, int num_threads) :
_manager(manager)
{
#if !defined(HAVE_THREADS) || defined(SIMPLE_THREADS)
// Although this code is written to use thread-locking primitives
// regardless of the definition of HAVE_THREADS, it is not safe to
// spawn multiple threads when HAVE_THREADS is not true, since we
// might be using a non-thread-safe malloc scheme. Also, there is
// no point in using threads for this kind of I/O if SIMPLE_THREADS
// is defined.
if (!Thread::is_true_threads()) {
// There is no point in using threads for this kind of I/O unless
// we actually have real threads available (i.e. HAVE_THREADS is
// defined, and SIMPLE_THREADS is not).
#ifndef NDEBUG
if (num_threads != 0) {
net_cat.error()
<< "Threading support is not available.\n";
}
if (num_threads != 0) {
net_cat.error()
<< "Threading support is not available.\n";
}
#endif // NDEBUG
num_threads = 0;
#endif // HAVE_THREADS
num_threads = 0;
}
_raw_mode = false;
_tcp_header_size = datagram_tcp16_header_size;