From 386d58b5862d8b76925c6523721594887606e82a Mon Sep 17 00:00:00 2001
From: faketruth <faketruth@0a769ca7-a7f5-676a-18bf-c427514a06d6>
Date: Mon, 3 Oct 2011 18:41:19 +0000
Subject: MCServer c++ source files

git-svn-id: http://mc-server.googlecode.com/svn/trunk@3 0a769ca7-a7f5-676a-18bf-c427514a06d6
---
 source/cEvent.cpp | 112 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 112 insertions(+)
 create mode 100644 source/cEvent.cpp

(limited to 'source/cEvent.cpp')

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
+}
-- 
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