Added logger plugin

src/plugins/logger/logger-buffer.c

@@ -0,0 +1,143 @@
+/*
+ * Copyright (c) 2003-2007 by FlashCode <flashcode@flashtux.org>
+ * See README for License detail, AUTHORS for developers list.
+ *
+ * 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 3 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, see <http://www.gnu.org/licenses/>.
+ */
+
+/* logger-buffer.c: manages logger buffer list */
+
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <stdlib.h>
+#include <string.h>
+#include <stdio.h>
+
+#include "logger-buffer.h"
+
+
+struct t_logger_buffer *logger_buffers = NULL;
+struct t_logger_buffer *last_logger_buffer = NULL;
+
+
+/*
+ * logger_buffer_add: add a new buffer for logging
+ */
+
+struct t_logger_buffer *
+logger_buffer_add (void *buffer, char *log_filename)
+{
+    struct t_logger_buffer *new_logger_buffer;
+    
+    if (!buffer || !log_filename)
+        return NULL;
+    
+    new_logger_buffer = (struct t_logger_buffer *)malloc (sizeof (struct t_logger_buffer));
+    if (new_logger_buffer)
+    {
+        new_logger_buffer->buffer = buffer;
+        new_logger_buffer->log_filename = strdup (log_filename);
+        new_logger_buffer->log_file = NULL;
+        
+        new_logger_buffer->prev_buffer = last_logger_buffer;
+        new_logger_buffer->next_buffer = NULL;
+        if (logger_buffers)
+            last_logger_buffer->next_buffer = new_logger_buffer;
+        else
+            logger_buffers = new_logger_buffer;
+        last_logger_buffer = new_logger_buffer;
+    }
+    
+    return new_logger_buffer;
+}
+
+/*
+ * logger_buffer_search: search a logger buffer by buffer pointer
+ */
+
+struct t_logger_buffer *
+logger_buffer_search (void *buffer)
+{
+    struct t_logger_buffer *ptr_logger_buffer;
+    
+    for (ptr_logger_buffer = logger_buffers; ptr_logger_buffer;
+         ptr_logger_buffer = ptr_logger_buffer->next_buffer)
+    {
+        if (ptr_logger_buffer->buffer == (struct t_gui_buffer *)buffer)
+            return ptr_logger_buffer;
+    }
+    
+    /* logger buffer not found */
+    return NULL;
+}
+
+/*
+ * logger_buffer_free: remove a logger buffer from list
+ */
+
+void
+logger_buffer_free (struct t_logger_buffer *logger_buffer)
+{
+    struct t_logger_buffer *new_logger_buffers;
+    
+    /* remove logger buffer */
+    if (last_logger_buffer == logger_buffer)
+        last_logger_buffer = logger_buffer->prev_buffer;
+    if (logger_buffer->prev_buffer)
+    {
+        (logger_buffer->prev_buffer)->next_buffer = logger_buffer->next_buffer;
+        new_logger_buffers = logger_buffers;
+    }
+    else
+        new_logger_buffers = logger_buffer->next_buffer;
+    
+    if (logger_buffer->next_buffer)
+        (logger_buffer->next_buffer)->prev_buffer = logger_buffer->prev_buffer;
+    
+    /* free data */
+    if (logger_buffer->log_filename)
+        free (logger_buffer->log_filename);
+    
+    logger_buffers = new_logger_buffers;
+}
+
+/*
+ * logger_buffer_remove: remove a buffer from list
+ */
+
+void
+logger_buffer_remove (void *buffer)
+{
+    struct t_logger_buffer *ptr_logger_buffer;
+    
+    ptr_logger_buffer = logger_buffer_search (buffer);
+    if (ptr_logger_buffer)
+        logger_buffer_free (ptr_logger_buffer);
+}
+
+/*
+ * logger_buffer_remove_all: remove all buffers from list
+ */
+
+void
+logger_buffer_remove_all ()
+{
+    while (logger_buffers)
+    {
+        logger_buffer_free (logger_buffers);
+    }
+}