diff src/loadso/os2/SDL_sysloadso.c @ 1361:19418e4422cb

New configure-based build system. Still work in progress, but much improved
author Sam Lantinga <slouken@libsdl.org>
date Thu, 16 Feb 2006 10:11:48 +0000
parents
children d910939febfa
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/loadso/os2/SDL_sysloadso.c	Thu Feb 16 10:11:48 2006 +0000
@@ -0,0 +1,67 @@
+/*
+    SDL - Simple DirectMedia Layer
+    Copyright (C) 1997-2006 Sam Lantinga
+
+    This library is free software; you can redistribute it and/or
+    modify it under the terms of the GNU Lesser General Public
+    License as published by the Free Software Foundation; either
+    version 2.1 of the License, or (at your option) any later version.
+
+    This library 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
+    Lesser General Public License for more details.
+
+    You should have received a copy of the GNU Lesser General Public
+    License along with this library; if not, write to the Free Software
+    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+
+    Sam Lantinga
+    slouken@libsdl.org
+*/
+
+/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
+/* System dependent library loading routines                           */
+
+#include <stdio.h>
+#define INCL_DOSERRORS
+#define INCL_DOSMODULEMGR
+#include <os2.h>
+
+#include "SDL_loadso.h"
+
+void *SDL_LoadObject(const char *sofile)
+{
+    HMODULE handle = NULL;
+    char buf[512];
+    APIRET ulrc = DosLoadModule(buf, sizeof (buf), (char *) sofile, &handle);
+
+    /* Generate an error message if all loads failed */
+    if ((ulrc != NO_ERROR) || (handle == NULL))
+        SDL_SetError("Failed loading %s: %s", sofile, buf);
+
+    return((void *) handle);
+}
+
+void *SDL_LoadFunction(void *handle, const char *name)
+{
+    const char *loaderror = "Unknown error";
+    void *symbol = NULL;
+    APIRET ulrc = DosQueryProcAddr((HMODULE)handle, 0, (char *)name, &symbol);
+    if (ulrc == ERROR_INVALID_HANDLE)
+        loaderror = "Invalid module handle";
+    else if (ulrc == ERROR_INVALID_NAME)
+        loaderror = "Symbol not found";
+
+    if (symbol == NULL)
+        SDL_SetError("Failed loading %s: %s", name, loaderror);
+
+    return(symbol);
+}
+
+void SDL_UnloadObject(void *handle)
+{
+    if ( handle != NULL )
+        DosFreeModule((HMODULE) handle);
+}
+