Split project over multiple files

src/file_tree.h

@@ -0,0 +1,62 @@
+#ifndef FILE_TREE_INCLUDED
+#define FILE_TREE_INCLUDED
+
+#include "basic.h"
+
+enum {
+    FILETREE_NOMEM   = -1,
+    FILETREE_NOENT   = -2,
+    FILETREE_NOTDIR  = -3,
+    FILETREE_ISDIR   = -4,
+    FILETREE_EXISTS  = -5,
+    FILETREE_BADPATH = -6,
+    FILETREE_BADOP   = -7,
+};
+
+typedef struct Entity Entity;
+
+typedef struct {
+    uint64_t chunk_size;
+    uint64_t num_chunks;
+    SHA256 *chunks;
+} File;
+
+typedef struct {
+    uint64_t max_children;
+    uint64_t num_children;
+    Entity *children;
+} Dir;
+
+struct Entity {
+    char name[1<<8];
+    uint16_t name_len;
+    bool is_dir;
+    union {
+        Dir  d;
+        File f;
+    };
+};
+
+typedef struct {
+    Entity root;
+} FileTree;
+
+typedef struct {
+    char name[1<<8];
+    int  name_len;
+    bool is_dir;
+} ListItem;
+
+#define MAX_COMPS 32
+
+int    file_tree_init(FileTree *ft);
+void   file_tree_free(FileTree *ft);
+bool   file_tree_uses_hash(FileTree *ft, SHA256 hash);
+int    file_tree_list(FileTree *ft, string path, ListItem *items, int max_items);
+int    file_tree_create_entity(FileTree *ft, string path, bool is_dir, uint64_t chunk_size);
+int    file_tree_delete_entity(FileTree *ft, string path);
+int    file_tree_write(FileTree *ft, string path, uint64_t off, uint64_t len, SHA256 *prev_hashes, SHA256 *hashes, SHA256 *removed_hashes, int *num_removed);
+int    file_tree_read(FileTree *ft, string path, uint64_t off, uint64_t len, uint64_t *chunk_size, SHA256 *hashes, int max_hashes);
+string file_tree_strerror(int code);
+
+#endif // FILE_TREE_INCLUDED