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-rw-r--r--source/cEvent.cpp112
1 files changed, 112 insertions, 0 deletions
diff --git a/source/cEvent.cpp b/source/cEvent.cpp
new file mode 100644
index 000000000..f3a0a3570
--- /dev/null
+++ b/source/cEvent.cpp
@@ -0,0 +1,112 @@
+#include "cEvent.h"
+#include "cMCLogger.h"
+
+#ifdef _WIN32
+#include <Windows.h>
+#else
+#include <semaphore.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <stdio.h>
+#endif
+
+cEvent::cEvent( unsigned int a_NumEvents /* = 1 */ )
+ : m_NumEvents( a_NumEvents )
+#ifndef _WIN32
+ , m_bNamed( false )
+#endif
+{
+ if( m_NumEvents < 1 ) m_NumEvents = 1;
+
+#ifdef _WIN32
+ m_Handle = new HANDLE[ m_NumEvents ];
+ for( unsigned int i = 0; i < m_NumEvents; i++)
+ {
+ ((HANDLE*)m_Handle)[i] = CreateEvent( 0, FALSE, FALSE, 0 );
+ }
+#else
+ m_Handle = new sem_t*[ m_NumEvents ];
+ for( unsigned int i = 0; i < m_NumEvents; i++)
+ {
+
+ sem_t* & HandlePtr = ((sem_t**)m_Handle)[i];
+ HandlePtr = new sem_t;
+
+ if( sem_init( HandlePtr, 0, 0 ) )
+ {
+ LOG("WARNING cEvent: Could not create unnamed semaphore, fallback to named.");
+ m_bNamed = true;
+ delete HandlePtr; // named semaphores return their own address
+
+ char c_Str[32];
+ sprintf( c_Str, "cEvent%p", &HandlePtr );
+ HandlePtr = sem_open( c_Str, O_CREAT, 777, 0 );
+ if( HandlePtr == SEM_FAILED )
+ LOG("ERROR: Could not create Event. (%i)", errno);
+ else
+ if( sem_unlink( c_Str ) != 0 )
+ LOG("ERROR: Could not unlink cEvent. (%i)", errno);
+ }
+ }
+#endif
+}
+
+cEvent::~cEvent()
+{
+#ifdef _WIN32
+ for( unsigned int i = 0; i < m_NumEvents; i++ )
+ {
+ CloseHandle( ((HANDLE*)m_Handle)[i] );
+ }
+ delete [] (HANDLE*)m_Handle;
+#else
+ for( unsigned int i = 0; i < m_NumEvents; i++ )
+ {
+ if( m_bNamed )
+ {
+ sem_t* & HandlePtr = ((sem_t**)m_Handle)[i];
+ char c_Str[32];
+ sprintf( c_Str, "cEvent%p", &HandlePtr );
+ // LOG("Closing event: %s", c_Str );
+ // LOG("Sem ptr: %p", HandlePtr );
+ if( sem_close( HandlePtr ) != 0 )
+ {
+ LOG("ERROR: Could not close cEvent. (%i)", errno);
+ }
+ }
+ else
+ {
+ sem_destroy( ((sem_t**)m_Handle)[i] );
+ delete ((sem_t**)m_Handle)[i];
+ }
+ }
+ delete [] (sem_t**)m_Handle; m_Handle = 0;
+#endif
+}
+
+void cEvent::Wait()
+{
+#ifdef _WIN32
+ WaitForMultipleObjects( m_NumEvents, (HANDLE*)m_Handle, true, INFINITE );
+#else
+ for(unsigned int i = 0; i < m_NumEvents; i++)
+ {
+ if( sem_wait( ((sem_t**)m_Handle)[i] ) != 0 )
+ {
+ LOG("ERROR: Could not wait for cEvent. (%i)", errno);
+ }
+ }
+#endif
+}
+
+void cEvent::Set(unsigned int a_EventNum /* = 0 */)
+{
+#ifdef _WIN32
+ SetEvent( ((HANDLE*)m_Handle)[a_EventNum] );
+#else
+ if( sem_post( ((sem_t**)m_Handle)[a_EventNum] ) != 0 )
+ {
+ LOG("ERROR: Could not set cEvent. (%i)", errno);
+ }
+#endif
+}