preliminary implementation of projCtx API

git-svn-id: http://svn.osgeo.org/metacrs/proj/trunk@1854 4e78687f-474d-0410-85f9-8d5e500ac6b2

1 files changed, 73 insertions, 0 deletions

diff --git a/src/pj_log.c b/src/pj_log.c
new file mode 100644
index 00000000..630a3cfe
--- /dev/null
+++ b/src/pj_log.c
@@ -0,0 +1,73 @@
+/******************************************************************************
+ * $Id$
+ *
+ * Project:  PROJ.4
+ * Purpose:  Implementation of pj_log() function.
+ * Author:   Frank Warmerdam, warmerdam@pobox.com
+ *
+ ******************************************************************************
+ * Copyright (c) 2010, Frank Warmerdam
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ *****************************************************************************/
+
+#include <projects.h>
+#include <string.h>
+#include <stdarg.h>
+
+PJ_CVSID("$Id$");
+
+/************************************************************************/
+/*                          pj_stderr_logger()                          */
+/************************************************************************/
+
+void pj_stderr_logger( void *app_data, int level, const char *msg )
+
+{
+    fprintf( stderr, "%s\n", msg );
+}
+
+/************************************************************************/
+/*                               pj_log()                               */
+/************************************************************************/
+
+void pj_log( projCtx ctx, int level, const char *fmt, ... )
+
+{
+    va_list args;
+    char *msg_buf;
+
+    if( level > ctx->debug_level )
+        return;
+
+    msg_buf = (char *) malloc(100000);
+    if( msg_buf == NULL )
+        return;
+
+    va_start( args, fmt );
+
+    /* we should use vsnprintf where available once we add configure detect.*/
+    vsprintf( msg_buf, fmt, args );
+
+    va_end( args );
+
+    ctx->logger( ctx->app_data, level, msg_buf );
+    
+    free( msg_buf );
+}