Added more files, mainly beginning of filesystem sources implementation.

Makefile.am

@@ -10,9 +10,12 @@ lib_LTLIBRARIES = src/libisofs.la
 src_libisofs_la_LDFLAGS = \
 	-version-info $(LT_CURRENT):$(LT_REVISION):$(LT_AGE)
 src_libisofs_la_SOURCES = \
-	src/tree.h \
-	src/tree.c \
-	src/image.h 
+	src/node.h \
+	src/node.c \
+	src/image.h \
+	src/fsource.h \
+	src/fs_local.c \
+	src/stream.h 
 libinclude_HEADERS = \
 	src/libisofs.h
 

TODO

@@ -6,6 +6,8 @@ TODO
 ====
 
 #00001 (tree.h) -> consider adding new timestamps to IsoTreeNode
+#00002 (tree.h) -> handle deletion of each kind of node 
+#00003 make error.h header public
 
 FIXME
 =====

src/error.h

@@ -0,0 +1,21 @@
+/*
+ * Copyright (c) 2007 Vreixo Formoso
+ * 
+ * This file is part of the libisofs project; you can redistribute it and/or 
+ * modify it under the terms of the GNU General Public License version 2 as 
+ * published by the Free Software Foundation. See COPYING file for details.
+ */
+#ifndef LIBISO_ERROR_H_
+#define LIBISO_ERROR_H_
+
+/*
+ * Return values for libisofs functions, mainly error codes
+ * TODO #00003 make this header public
+ */
+
+#define ISO_SUCCESS				1
+#define ISO_NULL_POINTER		-1
+
+
+
+#endif /*LIBISO_ERROR_H_*/

src/tree.c → src/fs_local.c

@@ -6,13 +6,10 @@
  * published by the Free Software Foundation. See COPYING file for details.
  */
 
-#include "tree.h"
-#include "libisofs.h"
+ 
+/*
+ * Filesystem/FileSource implementation to access the local filesystem.
+ */
 
+#include "fsource.h"
 
-/**
- * Increments the reference counting of the given node.
- */
-void iso_node_ref(IsoTreeNode *node) {
-	node->refcount++;
-}

src/fsource.h

@@ -0,0 +1,97 @@
+/*
+ * Copyright (c) 2007 Vreixo Formoso
+ * 
+ * This file is part of the libisofs project; you can redistribute it and/or 
+ * modify it under the terms of the GNU General Public License version 2 as 
+ * published by the Free Software Foundation. See COPYING file for details.
+ */
+
+#ifndef LIBISO_FSOURCE_H_
+#define LIBISO_FSOURCE_H_
+
+/*
+ * Definitions for the file sources.
+ */
+
+/*
+ * Some functions here will be moved to libisofs.h when we expose 
+ * Sources.
+ */
+
+#include <sys/stat.h>
+
+typedef struct Iso_File_Source IsoFileSource;
+typedef struct Iso_Filesystem IsoFilesystem;
+
+struct Iso_Filesystem
+{
+
+    /**
+     * 
+     * @return
+     *    1 on success, < 0 on error
+     */
+    int (*get_root)(IsoFilesystem *fs, IsoFileSource *root);
+
+
+};
+
+struct Iso_File_Source
+{
+
+    /**
+     * 
+     * @return
+     * 		1 success, < 0 error
+     */
+    int (*lstat)(IsoFileSource *src, struct stat *info);
+
+    //stat?
+
+    /**
+     * Opens the source.
+     * @return 1 on success, < 0 on error
+     */
+    int (*open)(IsoFileSource *src);
+
+
+    void (*close)(IsoFileSource *src);
+
+    /**
+     * Attempts to read up to count bytes from the given source into
+     * the buffer starting at buf.
+     * 
+     * The file src must be open() before calling this, and close() when no 
+     * more needed. Not valid for dirs. On symlinks it reads the destination
+     * file.
+     * 
+     * @return 
+     *     number of bytes read, 0 if EOF, < 0 on error
+     */
+    int (*read)(IsoFileSource *src, void *buf, size_t count);
+
+    /**
+     * Read a directory. 
+     * 
+     * Each call to this function will return a new children, until we reach
+     * the end of file (i.e, no more children), in that case it returns 0.
+     * 
+     * The dir must be open() before calling this, and close() when no more
+     * needed. Only valid for dirs. 
+     * 
+     * @param child
+     *     pointer to be filled with the given child. Undefined on error or OEF
+     * @return 
+     *     1 on success, 0 if EOF (no more children), < 0 on error
+     */
+    int (*readdir)(IsoFileSource *src, IsoFileSource **child);
+
+    /**
+     * 
+     */
+    int (*readlink)(IsoFileSource *src, char *buf, size_t bufsiz);
+
+};
+
+
+#endif /*LIBISO_FSOURCE_H_*/

src/libisofs.h

@@ -8,12 +8,33 @@
 #ifndef LIBISO_LIBISOFS_H_
 #define LIBISO_LIBISOFS_H_
 
-typedef struct Iso_Tree_Node IsoTreeNode;
+typedef struct Iso_Node IsoNode;
+typedef struct Iso_Dir IsoDir;
 
 /**
  * Increments the reference counting of the given node.
  */
-void iso_node_ref(IsoTreeNode *node);
+void iso_node_ref(IsoNode *node);
 
+/**
+ * Decrements the reference couting of the given node.
+ * If it reach 0, the node is free, and, if the node is a directory,
+ * its children will be unref() too.
+ */
+void iso_node_unref(IsoNode *node);
+
+/**
+ * Set the name of a node.
+ * 
+ * @param name  The name in UTF-8 encoding
+ */
+void iso_node_set_name(IsoNode *node, const char *name);
+
+/**
+ * Get the name of a node (in UTF-8).
+ * The returned string belongs to the node and should not be modified nor
+ * freed. Use strdup if you really need your own copy.
+ */
+const char *iso_node_get_name(IsoNode *node);
 
 #endif /*LIBISO_LIBISOFS_H_*/

src/node.c

@@ -0,0 +1,56 @@
+/*
+ * Copyright (c) 2007 Vreixo Formoso
+ * 
+ * This file is part of the libisofs project; you can redistribute it and/or 
+ * modify it under the terms of the GNU General Public License version 2 as 
+ * published by the Free Software Foundation. See COPYING file for details.
+ */
+
+#include "node.h"
+#include "libisofs.h"
+
+#include <stdlib.h>
+#include <string.h>
+
+/**
+ * Increments the reference counting of the given node.
+ */
+void iso_node_ref(IsoNode *node)
+{
+    ++node->refcount;
+}
+
+/**
+ * Decrements the reference couting of the given node.
+ * If it reach 0, the node is free, and, if the node is a directory,
+ * its children will be unref() too.
+ */
+void iso_node_unref(IsoNode *node)
+{
+    if (--node->refcount == 0) {
+        /* TODO #00002 handle deletion of each kind of node */
+        free(node->name);
+        free(node);
+    }
+}
+
+/**
+ * Set the name of a node.
+ * 
+ * @param name  The name in UTF-8 encoding
+ */
+void iso_node_set_name(IsoNode *node, const char *name)
+{
+    free(node->name);
+    node->name = strdup(name);
+}
+
+/**
+ * Get the name of a node (in UTF-8).
+ * The returned string belongs to the node and should not be modified nor
+ * freed. Use strdup if you really need your own copy.
+ */
+const char *iso_node_get_name(IsoNode *node)
+{
+    return node->name;
+}

src/tree.h → src/node.h

@@ -5,8 +5,8 @@
  * modify it under the terms of the GNU General Public License version 2 as 
  * published by the Free Software Foundation. See COPYING file for details.
  */
-#ifndef LIBISO_TREE_H_
-#define LIBISO_TREE_H_
+#ifndef LIBISO_NODE_H_
+#define LIBISO_NODE_H_
 
 /*
  * Definitions for the public iso tree
@@ -19,9 +19,9 @@
 #include <unistd.h>
 
 /**
- * The type of an IsoTreeNode.
+ * The type of an IsoNode.
  */
-enum IsoTreeNodeType {
+enum IsoNodeType {
     LIBISO_DIR,
     LIBISO_FILE,
     LIBISO_SYMLINK,
@@ -32,18 +32,19 @@ enum IsoTreeNodeType {
 /**
  * 
  */
-struct Iso_Tree_Node {
+struct Iso_Node
+{
     /*
      * Initilized to 1, originally owned by user, until added to another node.
      * Then it is owned by the parent node, so the user must take his own ref 
      * if needed. With the exception of the creation functions, none of the
-     * other libisofs functions that return an IsoTreeNode increment its 
+     * other libisofs functions that return an IsoNode increment its 
      * refcount. This is responsablity of the client, if (s)he needs it.
      */
     int refcount;
 
-    /**< Type of the IsoTreeNode, do not confuse with mode */
-    enum IsoTreeNodeType type;
+    /**< Type of the IsoNode, do not confuse with mode */
+    enum IsoNodeType type;
 
     char *name; /**< Real name, supossed to be in UTF-8 */
 
@@ -63,18 +64,29 @@ struct Iso_Tree_Node {
      * It is a circular list where the last child points to the first
      * and viceversa.
      */
-    IsoTreeNode *prev;
-    IsoTreeNode *next;
+    IsoNode *prev;
+    IsoNode *next;
 };
 
-struct IsoDir {
-    IsoTreeNode node;
+struct Iso_Dir
+{
+    IsoNode node;
 
     size_t nchildren; /**< The number of children of this directory. */
-    struct IsoTreeNode *children; /**< list of children. ptr to first child */
+    struct IsoNode *children; /**< list of children. ptr to first child */
 };
 
-//void iso_node_unref(IsoTreeNode *node);
+struct Iso_File
+{
+    IsoNode node;
+
+	/** 
+	 * It sorts the order in which the file data is written to the CD image.
+	 * Higher weighting filesare written at the beginning of image 
+	 */
+    int sort_weight;
+    
+};
 
 
-#endif /*TREE_H_*/
+#endif /*LIBISO_NODE_H_*/

src/stream.h

@@ -0,0 +1,44 @@
+/*
+ * Copyright (c) 2007 Vreixo Formoso
+ * 
+ * This file is part of the libisofs project; you can redistribute it and/or 
+ * modify it under the terms of the GNU General Public License version 2 as 
+ * published by the Free Software Foundation. See COPYING file for details.
+ */
+#ifndef LIBISO_STREAM_H_
+#define LIBISO_STREAM_H_
+
+/*
+ * Definitions of streams.
+ */
+ 
+/*
+ * Some functions here will be moved to libisofs.h when we expose 
+ * Streams.
+ */
+
+typedef struct Iso_Stream IsoStream;
+
+struct Iso_Stream 
+{
+	/**
+	 * Opens the stream.
+	 * @return 1 on success, < 0 on error
+	 */
+	int (*open)(IsoStream *stream);
+	
+	/**
+	 * Close the Stream.
+	 */
+	void (*close)(IsoStream *stream);
+	
+	// Stream should read in 2k blocks!
+	//...
+	
+	int refcount;
+	
+	
+	
+}
+
+#endif /*STREAM_H_*/

test/iso.c

@@ -11,6 +11,6 @@
 
 int main(int argc, char **argv)
 {
-	IsoTreeNode *node;
+	IsoNode *node;
 	
 }