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-rw-r--r--src/fs/io/FileReader.cxx78
1 files changed, 61 insertions, 17 deletions
diff --git a/src/fs/io/FileReader.cxx b/src/fs/io/FileReader.cxx
index d63cd8ab0..e54f6f3a8 100644
--- a/src/fs/io/FileReader.cxx
+++ b/src/fs/io/FileReader.cxx
@@ -1,5 +1,5 @@
/*
- * Copyright (C) 2003-2014 The Music Player Daemon Project
+ * Copyright (C) 2003-2015 The Music Player Daemon Project
* http://www.musicpd.org
*
* This program is free software; you can redistribute it and/or modify
@@ -19,7 +19,7 @@
#include "config.h"
#include "FileReader.hxx"
-#include "system/fd_util.h"
+#include "fs/FileInfo.hxx"
#include "util/Error.hxx"
#ifdef WIN32
@@ -30,8 +30,18 @@ FileReader::FileReader(Path _path, Error &error)
nullptr, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL,
nullptr))
{
- if (handle == INVALID_HANDLE_VALUE)
- error.FormatLastError("Failed to open %s", path.c_str());
+ if (handle == INVALID_HANDLE_VALUE) {
+ const auto path_utf8 = path.ToUTF8();
+ error.FormatLastError("Failed to open %s", path_utf8.c_str());
+ }
+}
+
+bool
+FileReader::GetFileInfo(FileInfo &info, Error &error) const
+{
+ assert(IsDefined());
+
+ return ::GetFileInfo(path, info, error);
}
size_t
@@ -41,13 +51,28 @@ FileReader::Read(void *data, size_t size, Error &error)
DWORD nbytes;
if (!ReadFile(handle, data, size, &nbytes, nullptr)) {
- error.FormatLastError("Failed to read from %s", path.c_str());
+ const auto path_utf8 = path.ToUTF8();
+ error.FormatLastError("Failed to read from %s",
+ path_utf8.c_str());
nbytes = 0;
}
return nbytes;
}
+bool
+FileReader::Seek(off_t offset, Error &error)
+{
+ assert(IsDefined());
+
+ auto result = SetFilePointer(handle, offset, nullptr, FILE_BEGIN);
+ const bool success = result != INVALID_SET_FILE_POINTER;
+ if (!success)
+ error.SetLastError("Failed to seek");
+
+ return success;
+}
+
void
FileReader::Close()
{
@@ -58,26 +83,33 @@ FileReader::Close()
#else
-#include <fcntl.h>
-#include <unistd.h>
-#include <errno.h>
-
FileReader::FileReader(Path _path, Error &error)
- :path(_path),
- fd(open_cloexec(path.c_str(),
- O_RDONLY,
- 0))
+ :path(_path)
{
- if (fd < 0)
+ fd.OpenReadOnly(path.c_str());
+ if (!fd.IsDefined())
error.FormatErrno("Failed to open %s", path.c_str());
}
+bool
+FileReader::GetFileInfo(FileInfo &info, Error &error) const
+{
+ assert(IsDefined());
+
+ const bool success = fstat(fd.Get(), &info.st) == 0;
+ if (!success)
+ error.FormatErrno("Failed to access %s",
+ path.ToUTF8().c_str());
+
+ return success;
+}
+
size_t
FileReader::Read(void *data, size_t size, Error &error)
{
assert(IsDefined());
- ssize_t nbytes = read(fd, data, size);
+ ssize_t nbytes = fd.Read(data, size);
if (nbytes < 0) {
error.FormatErrno("Failed to read from %s", path.c_str());
nbytes = 0;
@@ -86,13 +118,25 @@ FileReader::Read(void *data, size_t size, Error &error)
return nbytes;
}
+bool
+FileReader::Seek(off_t offset, Error &error)
+{
+ assert(IsDefined());
+
+ auto result = fd.Seek(offset);
+ const bool success = result >= 0;
+ if (!success)
+ error.SetErrno("Failed to seek");
+
+ return success;
+}
+
void
FileReader::Close()
{
assert(IsDefined());
- close(fd);
- fd = -1;
+ fd.Close();
}
#endif