Changeset 3688

Timestamp:

Mar 15, 2011, 11:59:30 PM (14 years ago)

Author:

bird

Message:

libc: Reimplemented pathconf and fpathconf. References #44.

Location:

trunk/libc/include/klibc

Files:

• backend.h (modified) (2 diffs)
• io.h (modified) (1 diff)

trunk/libc/include/klibc/backend.h

@@ -234 +234 @@
 
 /**
+ * Query filesystem configuration information by path.
+ *
+ * @returns 0 on success.
+ * @returns Negative error code (errno.h) on failure.
+ * @param   pszPath     Path to query info about.
+ * @param   iName       Which path config variable to query.
+ * @param   plValue     Where to return the value.
+ * @sa      __libc_Back_ioPathConf, fpathconf, pathconf, sysconf.
+ */
+int __libc_Back_fsPathConf(const char *pszPath, int iName, long *plValue);
+
+/**
  * Resolves the path into an canonicalized absolute path.
  *
@@ -689 +701 @@
  */
 int __libc_Back_ioFHToPath(int fh, char *pszPath, size_t cchPath);
+
+/**
+ * Query filesystem configuration information by file handle.
+ *
+ * @returns 0 on success.
+ * @returns Negative error code (errno.h) on failure.
+ * @param   fh          The handle to query config info about.
+ * @param   iName       Which path config variable to query.
+ * @param   plValue     Where to return the configuration value.
+ * @sa      __libc_Back_fsPathConf, fpathconf, pathconf, sysconf.
+ */
+int __libc_Back_ioPathConf(int fh, int iName, long *plValue);
 
 /** @} */

trunk/libc/include/klibc/io.h

@@ -51 +51 @@
     /** Does the file system provide sufficient EA support for UNIX attributes? */
     unsigned            fUnixEAs : 1;
+    /** _PC_CHOWN_RESTRICTED - Is chown and chgrp restricted the typical unix way. */
+    unsigned            fChOwnRestricted : 1;
+    /** _PC_NO_TRUNC - Indicates whether too long names will cause errors or be truncated. */
+    unsigned            fNoNameTrunc : 1;
+    /** _PC_FILESIZEBITS - The bitsize of the type required to store the max file size. */
+    unsigned            cFileSizeBits : 7;
+    /** _PC_PATH_MAX - The maximum path length. */
+    unsigned short      cchMaxPath;
+    /** _PC_NAME_MAX - The maximum path length. */
+    unsigned short      cchMaxName;
+    /** _PC_SYMLINK_MAX - The maximum symlink length. */
+    unsigned short      cchMaxSymlink;
+    /** _PC_LINK_MAX - The maximum number of hard links per file. */
+    unsigned short      cMaxLinks;
+    /** _PC_MAX_CANON - The maximum number of bytes in a terminal canonical input queue. */
+    unsigned short      cchMaxTermCanon;
+    /** _PC_MAX_INPUT - The maximum number of bytes in a canonical input queue. */
+    unsigned short      cchMaxTermInput;
+    /** _PC_PIPE_BUF  - The maximum number of bytes that is guaranteed to be atomic when writing to a pipe. */
+    unsigned            cbPipeBuf;
+    /** _PC_ALLOC_SIZE_MIN - The (smallest) block allocation size of the file system.  */
+    unsigned            cbBlock;
+    /** _PC_REC_INCR_XFER_SIZE - The increments to walk between the min and max transfer sizes. */
+    unsigned short      cbXferIncr;
+    /** _PC_REC_MAX_XFER_SIZE  - The maximum recommended transfer size. */
+    unsigned long       cbXferMax;
+    /** _PC_REC_MIN_XFER_SIZE  - The minimum recommended transfer size. */
+    unsigned long       cbXferMin;
+    /** _PC_REC_XFER_ALIGN - The recommended buffer alignment for transfers. */
+    unsigned short      uXferAlign;
+
     /** Device number of the device the filesystem resides on.
      * On OS/2 the device number is derived from the driveletter. */