[PATCH v4 4/5] mingw: add fallback for rmdir in case directory is in use

From

Heiko Voigt <hvoigt@hvoigt.net>

Date

Feb 7, 2011, 20:52 UTC

Message-ID

<20110207205233.GE63976@book.hvoigt.net>

In-Reply-To

<20110207204818.GA63976@book.hvoigt.net>

Signed-off-by: Heiko Voigt <heiko.voigt@mahr.de>
---
 compat/mingw.c |   25 +++++++++++++++++++++++++
 compat/mingw.h |    3 +++
 2 files changed, 28 insertions(+), 0 deletions(-)

diff --git a/compat/mingw.c b/compat/mingw.c
index 1354b8e..68cc79f 100644
--- a/compat/mingw.c
+++ b/compat/mingw.c
@@ -225,6 +225,31 @@ int mingw_unlink(const char *pathname)
 	return ret;
 }
 
+#undef rmdir
+int mingw_rmdir(const char *pathname)
+{
+	int ret, tries = 0;
+
+	while ((ret = rmdir(pathname)) == -1 && tries < ARRAY_SIZE(delay)) {
+		if (!is_file_in_use_error(GetLastError()))
+			break;
+		/*
+		 * We assume that some other process had the source or
+		 * destination file open at the wrong moment and retry.
+		 * In order to give the other process a higher chance to
+		 * complete its operation, we give up our time slice now.
+		 * If we have to retry again, we do sleep a bit.
+		 */
+		Sleep(delay[tries]);
+		tries++;
+	}
+	while (ret == -1 && is_file_in_use_error(GetLastError()) &&
+	       ask_yes_no_if_possible("Deletion of directory '%s' failed. "
+			"Should I try again?", pathname))
+	       ret = rmdir(pathname);
+	return ret;
+}
+
 #undef open
 int mingw_open (const char *filename, int oflags, ...)
 {
diff --git a/compat/mingw.h b/compat/mingw.h
index 970d743..fe6ba34 100644
--- a/compat/mingw.h
+++ b/compat/mingw.h
@@ -169,6 +169,9 @@ int link(const char *oldpath, const char *newpath);
 int mingw_unlink(const char *pathname);
 #define unlink mingw_unlink
 
+int mingw_rmdir(const char *path);
+#define rmdir mingw_rmdir
+
 int mingw_open (const char *filename, int oflags, ...);
 #define open mingw_open
 

-- 
1.7.4.34.gd2cb1