DLL symbols importing added (Eugene)

git-svn-id: svn://svn.zabbix.com/trunk@3054 97f52cf1-0a1b-0410-bd0e-c28be96e8082

1 files changed, 73 insertions, 0 deletions

diff --git a/src/libs/zbxsys/symbols.c b/src/libs/zbxsys/symbols.c
new file mode 100755
index 00000000..f6b2c204
--- /dev/null
+++ b/src/libs/zbxsys/symbols.c
@@ -0,0 +1,73 @@
+/* 
+** ZABBIX
+** Copyright (C) 2000-2005 SIA Zabbix
+**
+** This program is free software; you can redistribute it and/or modify
+** it under the terms of the GNU General Public License as published by
+** the Free Software Foundation; either version 2 of the License, or
+** (at your option) any later version.
+**
+** This program is distributed in the hope that it will be useful,
+** but WITHOUT ANY WARRANTY; without even the implied warranty of
+** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+** GNU General Public License for more details.
+**
+** You should have received a copy of the GNU General Public License
+** along with this program; if not, write to the Free Software
+** Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+**/
+
+#include "common.h"
+#include "symbols.h"
+
+#include "log.h"
+
+DWORD	(__stdcall *zbx_GetGuiResources)(HANDLE,DWORD)				= NULL;
+BOOL	(__stdcall *zbx_GetProcessIoCounters)(HANDLE,PIO_COUNTERS)		= NULL;
+BOOL	(__stdcall *zbx_GetPerformanceInfo)(PPERFORMANCE_INFORMATION,DWORD)	= NULL;
+BOOL	(__stdcall *zbx_GlobalMemoryStatusEx)(LPMEMORYSTATUSEX)			= NULL;
+
+
+static FARPROC GetProcAddressAndLog(HMODULE hModule,LPCSTR procName)
+{
+	FARPROC ptr;
+
+	ptr=GetProcAddress(hModule,procName);
+	if ( NULL == ptr )
+		zbx_error("Unable to resolve symbol '%s'", procName);
+
+	return ptr;
+}
+
+void import_symbols(void)
+{
+	HMODULE hModule;
+
+	if(NULL != (hModule = GetModuleHandle("USER32.DLL")) )
+	{
+		zbx_GetGuiResources = (DWORD (__stdcall *)(HANDLE,DWORD))GetProcAddressAndLog(hModule,"GetGuiResources");
+	}
+	else
+	{
+		zbx_error("Unable to get handle to USER32.DLL");
+	}
+
+	if(NULL != (hModule=GetModuleHandle("KERNEL32.DLL")) )
+	{
+		zbx_GetProcessIoCounters = (BOOL (__stdcall *)(HANDLE,PIO_COUNTERS))GetProcAddressAndLog(hModule,"GetProcessIoCounters");
+		zbx_GlobalMemoryStatusEx = (BOOL (__stdcall *)(LPMEMORYSTATUSEX))GetProcAddressAndLog(hModule,"GlobalMemoryStatusEx");
+	}
+	else
+	{
+		zbx_error("Unable to get handle to KERNEL32.DLL");
+	}
+
+	if(NULL != (hModule=GetModuleHandle("PSAPI.DLL")) )
+	{
+		zbx_GetPerformanceInfo = (BOOL (__stdcall *)(PPERFORMANCE_INFORMATION,DWORD))GetProcAddressAndLog(hModule,"GetPerformanceInfo");
+	}
+	else
+	{
+		zbx_error("Unable to get handle to PSAPI.DLL");
+	}
+}