Changeset 22516 in vbox

Timestamp:

Aug 27, 2009 12:42:16 PM (15 years ago)

Author:

vboxsync

Message:

IPRT: Added RTFileExists

Location:

trunk

Files:

• include/iprt/file.h (modified) (1 diff)
• src/VBox/Runtime/r3/posix/fileio-posix.cpp (modified) (1 diff)
• src/VBox/Runtime/r3/win/fileio-win.cpp (modified) (2 diffs)

trunk/include/iprt/file.h

@@ -54 +54 @@
 
 #ifdef IN_RING3
+
+/**
+ * Checks if the specified file name exists and is a regular file.
+ *
+ * Symbolic links will be resolved.
+ *
+ * @returns true if it's a regular file, false if it isn't.
+ * @param   pszPath         The path to the file.
+ *
+ * @sa      RTDirExists, RTPathExists, RTSymlinkExists.
+ */
+RTDECL(bool) RTFileExists(const char *pszPath);
+
 
 /** @name Open flags

trunk/src/VBox/Runtime/r3/posix/fileio-posix.cpp

@@ -90 +90 @@
 
 
+RTDECL(bool) RTFileExists(const char *pszPath)
+{
+    bool fRc = false;
+    char *pszNativePath;
+    int rc = rtPathToNative(&pszNativePath, pszPath);
+    if (RT_SUCCESS(rc))
+    {
+        struct stat s;
+        fRc = !stat(pszNativePath, &s)
+            && S_ISREG(s.st_mode);
+
+        rtPathFreeNative(pszNativePath);
+    }
+
+    LogFlow(("RTFileExists(%p={%s}): returns %RTbool\n", pszPath, pszPath, fRc));
+    return fRc;
+}
+
+
 RTR3DECL(int)  RTFileOpen(PRTFILE pFile, const char *pszFilename, unsigned fOpen)
 {

trunk/src/VBox/Runtime/r3/win/fileio-win.cpp

@@ -69 +69 @@
  * @param   uMethod     Seek method. (The windows one!)
  */
-inline bool MySetFilePointer(RTFILE File, uint64_t offSeek, uint64_t *poffNew, unsigned uMethod)
+DECLINLINE(bool) MySetFilePointer(RTFILE File, uint64_t offSeek, uint64_t *poffNew, unsigned uMethod)
 {
     bool            fRc;
@@ -126 +126 @@
 
     return fIsBeyondLimit;
+}
+
+
+RTDECL(bool) RTFileExists(const char *pszPath)
+{
+    bool fRc = false;
+
+    /*
+     * Convert to UTF-16.
+     */
+    PRTUTF16 pwszString;
+    int rc = RTStrToUtf16(pszPath, &pwszString);
+    AssertRC(rc);
+    if (RT_SUCCESS(rc))
+    {
+        /*
+         * Query and check attributes.
+         */
+        DWORD dwAttr = GetFileAttributesW((LPCWSTR)pwszString);
+        fRc = dwAttr != INVALID_FILE_ATTRIBUTES
+            && !(dwAttr & (  FILE_ATTRIBUTE_DIRECTORY
+                           | FILE_ATTRIBUTE_DEVICE
+                           | FILE_ATTRIBUTE_REPARSE_POINT));
+        RTUtf16Free(pwszString);
+    }
+
+    LogFlow(("RTFileExists(%p:{%s}): returns %RTbool\n", pszPath, pszPath, fRc));
+    return fRc;
 }