diff options
author | Boris Kolpackov <boris@codesynthesis.com> | 2010-08-26 14:52:12 +0200 |
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committer | Boris Kolpackov <boris@codesynthesis.com> | 2010-08-26 14:52:12 +0200 |
commit | 6fb470a39ef8900b71634333b0a2227dc8b62799 (patch) | |
tree | 6d782be7a2b25c3f21e9d25f7c7251bde2699994 /odb/details/win32/condition.cxx | |
parent | c883d0ba2f4450f35de6767355555fa83e6262ea (diff) |
Add support for creating other build systems (meta-building)
Add support for automake, VC++ 9, and VC++ 10. Also add the Win32 and
'NULL' threading model implementations.
Diffstat (limited to 'odb/details/win32/condition.cxx')
-rw-r--r-- | odb/details/win32/condition.cxx | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/odb/details/win32/condition.cxx b/odb/details/win32/condition.cxx new file mode 100644 index 0000000..93c396b --- /dev/null +++ b/odb/details/win32/condition.cxx @@ -0,0 +1,57 @@ +// file : odb/details/win32/condition.cxx +// author : Boris Kolpackov <boris@codesynthesis.com> +// copyright : Copyright (c) 2009-2010 Code Synthesis Tools CC +// license : GNU GPL v2; see accompanying LICENSE file + +#include <windows.h> + +#include <odb/details/win32/condition.hxx> +#include <odb/details/win32/exceptions.hxx> + +namespace odb +{ + namespace details + { + void condition:: + signal () + { + mutex_.lock (); + + if (waiters_ > signals_) + { + if (signals_++ == 0) + { + if (SetEvent (event_) == 0) + throw win32_exception (); + } + } + + mutex_.unlock (); + } + + void condition:: + wait () + { + // When we enter this functions the mutex is locked. When we + // return from this function the mutex must be locked. + // + waiters_++; + mutex_.unlock (); + + if (WaitForSingleObject (event_, INFINITE) != 0) + throw win32_exception (); + + mutex_.lock (); + waiters_--; + signals_--; + + if (signals_ > 0) + { + // Wake up the next thread. + // + if (SetEvent (event_) == 0) + throw win32_exception (); + } + } + } +} |