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premiere-libtorrent
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This commit is contained in:
Magnus Jonsson 2004-01-22 23:49:48 +00:00
parent 90681c67a6
commit 60d04d29d7
1 changed files with 23 additions and 5 deletions
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28
src/file_win.cpp
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@ -39,15 +39,33 @@ POSSIBILITY OF SUCH DAMAGE.
namespace
{
// must be used to not leak memory in case something would throw
class auto_LocalFree
{
public:
auto_LocalFree(HLOCAL memory)
: m_memory(memory)
{
}
~auto_LocalFree()
{
if(m_memory)
LocalFree(m_memory);
}
private:
HLOCAL m_memory;
};
void throw_exception(const char* thrower)
{
char buffer[1024];
char *buffer=0;
int err = GetLastError();
// TODO: can this be done in an exception safe AND
// buffer overrun-safe way?
FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM, 0, err, 0, buffer, 0, 0);
FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM|FORMAT_MESSAGE_ALLOCATE_BUFFER, 0, err, 0, (LPSTR)&buffer, 0, 0);
auto_LocalFree auto_free(buffer); // needed for exception safety
std::stringstream s;
s << thrower << ": " << buffer;
s << (thrower ? thrower : "NULL") << ": " << (buffer ? buffer : "NULL");
throw libtorrent::file_error(s.str());
}
}