X-Git-Url: http://git.vrable.net/?a=blobdiff_plain;f=bluesky%2Fbluesky.h;h=21fd8551b95c9cc25c5567a548931f3b048f094a;hb=b7e08dcf6552eb8977ccef56f00e775da8133cf8;hp=7419cd439daa2082fa6db0fca37db09b2fa590ee;hpb=03476a3d39444ff2a09174e945ab645508c2224c;p=bluesky.git

diff --git a/bluesky/bluesky.h b/bluesky/bluesky.h
index 7419cd4..21fd855 100644
--- a/bluesky/bluesky.h
+++ b/bluesky/bluesky.h
@@ -10,12 +10,21 @@
 #define _BLUESKY_H
 
 #include <stdint.h>
+#include <inttypes.h>
 #include <glib.h>
 
 #ifdef __cplusplus
 extern "C" {
 #endif
 
+/* BlueSky status and error codes.  Various frontends should translate these to
+ * the appropriate error code for whatever protocol they implement. */
+typedef enum {
+    BSTATUS_OK = 0,             /* No error */
+    BSTATUS_IOERR,              /* I/O error of some form */
+    BSTATUS_NOENT,              /* File does not exist */
+} BlueSkyStatus;
+
 void bluesky_init(void);
 
 gchar *bluesky_lowercase(const gchar *s);
@@ -29,15 +38,18 @@ typedef struct {
 } BlueSkyRCStr;
 
 BlueSkyRCStr *bluesky_string_new(gpointer data, gsize len);
+BlueSkyRCStr *bluesky_string_new_from_gstring(GString *s);
 void bluesky_string_ref(BlueSkyRCStr *string);
 void bluesky_string_unref(BlueSkyRCStr *string);
 BlueSkyRCStr *bluesky_string_dup(BlueSkyRCStr *string);
+void bluesky_string_resize(BlueSkyRCStr *string, gsize len);
 
 /* Cryptographic operations. */
 #define CRYPTO_BLOCK_SIZE 16        /* 128-bit AES */
 #define CRYPTO_KEY_SIZE   16
 
 void bluesky_crypt_init();
+void bluesky_crypt_hash_key(const char *keystr, uint8_t *out);
 void bluesky_crypt_random_bytes(guchar *buf, gint len);
 BlueSkyRCStr *bluesky_crypt_encrypt(BlueSkyRCStr *in, const uint8_t *key);
 BlueSkyRCStr *bluesky_crypt_decrypt(BlueSkyRCStr *in, const uint8_t *key);
@@ -93,8 +105,6 @@ typedef struct {
     uint64_t next_inum;         /* Next available inode for allocation */
 
     BlueSkyStore *store;
-
-    uint8_t *encryption_key;
 } BlueSkyFS;
 
 /* Inode number of the root directory. */
@@ -103,6 +113,10 @@ typedef struct {
 /* Timestamp, measured in microseconds since the Unix epoch. */
 typedef int64_t bluesky_time;
 
+/* High-resolution timer, measured in nanoseconds. */
+typedef int64_t bluesky_time_hires;
+bluesky_time_hires bluesky_now_hires();
+
 /* In-memory representation of an inode within a Blue Sky server.  This
  * corresponds roughly with information that is committed to persistent
  * storage.  Locking/refcounting rules:
@@ -148,6 +162,7 @@ typedef struct {
     /* Directory-specific fields */
     GSequence *dirents;         /* List of entries for READDIR */
     GHashTable *dirhash;        /* Hash table by name for LOOKUP */
+    GHashTable *dirhash_folded; /* As above, but case-folded */
     uint64_t parent_inum;       /* inode for ".."; 0 if the root directory */
 } BlueSkyInode;
 
@@ -158,6 +173,7 @@ typedef struct {
  * is used to provide a stable key for restarting a READDIR call. */
 typedef struct {
     gchar *name;
+    gchar *name_folded;         /* Name, folded for case-insensitive lookup */
     uint32_t cookie;
     uint64_t inum;
 } BlueSkyDirent;
@@ -181,7 +197,9 @@ typedef struct {
     BlueSkyRCStr *data;         /* Pointer to data in memory if cached */
 } BlueSkyBlock;
 
-BlueSkyFS *bluesky_new_fs(gchar *name);
+BlueSkyFS *bluesky_init_fs(gchar *name, BlueSkyStore *store);
+void bluesky_superblock_flush(BlueSkyFS *fs);
+
 int64_t bluesky_get_current_time();
 void bluesky_inode_update_ctime(BlueSkyInode *inode, gboolean update_mtime);
 uint64_t bluesky_fs_alloc_inode(BlueSkyFS *fs);
@@ -191,9 +209,10 @@ BlueSkyInode *bluesky_get_inode(BlueSkyFS *fs, uint64_t inum);
 void bluesky_insert_inode(BlueSkyFS *fs, BlueSkyInode *inode);
 
 void bluesky_dirent_destroy(gpointer dirent);
-uint64_t bluesky_directory_hash(gchar *name);
 uint64_t bluesky_directory_lookup(BlueSkyInode *inode, gchar *name);
-gboolean bluesky_directory_insert(BlueSkyInode *dir, gchar *name,
+uint64_t bluesky_directory_ilookup(BlueSkyInode *inode, gchar *name);
+BlueSkyDirent *bluesky_directory_read(BlueSkyInode *dir, uint32_t cookie);
+gboolean bluesky_directory_insert(BlueSkyInode *dir, const gchar *name,
                                   uint64_t inum);
 void bluesky_directory_dump(BlueSkyInode *dir);
 
@@ -208,8 +227,6 @@ void bluesky_file_read(BlueSkyInode *inode, uint64_t offset,
 
 void bluesky_inode_flush(BlueSkyFS *fs, BlueSkyInode *inode);
 void bluesky_inode_fetch(BlueSkyFS *fs, uint64_t inum);
-void bluesky_serialize_inode(GString *out, BlueSkyInode *inode);
-BlueSkyInode *bluesky_deserialize_inode(BlueSkyFS *fs, const gchar *buf);
 
 gint bluesky_dirent_compare(gconstpointer a, gconstpointer b,
                             gpointer unused);