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Fix xlog docs
[folly.git]
/
folly
/
File.cpp
diff --git
a/folly/File.cpp
b/folly/File.cpp
index c60dfbced7fcf7406aa5df50cac1e2a9d6f8964d..9fb755a8468e37a2c212f18f8369ef3faa211803 100644
(file)
--- a/
folly/File.cpp
+++ b/
folly/File.cpp
@@
-1,5
+1,5
@@
/*
/*
- * Copyright 201
4
Facebook, Inc.
+ * Copyright 201
7
Facebook, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
@@
-14,15
+14,16
@@
* limitations under the License.
*/
* limitations under the License.
*/
-#include
"folly/File.h"
+#include
<folly/File.h>
-#include <fcntl.h>
-#include <unistd.h>
-#include "folly/Exception.h"
-#include "folly/FileUtil.h"
-#include "folly/Format.h"
-#include "folly/ScopeGuard.h"
+#include <folly/Exception.h>
+#include <folly/FileUtil.h>
+#include <folly/Format.h>
+#include <folly/ScopeGuard.h>
+#include <folly/portability/Fcntl.h>
+#include <folly/portability/SysFile.h>
+#include <folly/portability/Unistd.h>
#include <system_error>
#include <system_error>
@@
-30,14
+31,9
@@
namespace folly {
namespace folly {
-File::File()
- : fd_(-1)
- , ownsFd_(false)
-{}
+File::File() noexcept : fd_(-1), ownsFd_(false) {}
-File::File(int fd, bool ownsFd)
- : fd_(fd)
- , ownsFd_(ownsFd) {
+File::File(int fd, bool ownsFd) noexcept : fd_(fd), ownsFd_(ownsFd) {
CHECK_GE(fd, -1) << "fd must be -1 or non-negative";
CHECK(fd != -1 || !ownsFd) << "cannot own -1";
}
CHECK_GE(fd, -1) << "fd must be -1 or non-negative";
CHECK(fd != -1 || !ownsFd) << "cannot own -1";
}
@@
-52,7
+48,13
@@
File::File(const char* name, int flags, mode_t mode)
ownsFd_ = true;
}
ownsFd_ = true;
}
-File::File(File&& other)
+File::File(const std::string& name, int flags, mode_t mode)
+ : File(name.c_str(), flags, mode) {}
+
+File::File(StringPiece name, int flags, mode_t mode)
+ : File(name.str(), flags, mode) {}
+
+File::File(File&& other) noexcept
: fd_(other.fd_)
, ownsFd_(other.ownsFd_) {
other.release();
: fd_(other.fd_)
, ownsFd_(other.ownsFd_) {
other.release();
@@
-65,7
+67,11
@@
File& File::operator=(File&& other) {
}
File::~File() {
}
File::~File() {
- closeNoThrow(); // ignore error
+ auto fd = fd_;
+ if (!closeNoThrow()) { // ignore most errors
+ DCHECK_NE(errno, EBADF) << "closing fd " << fd << ", it may already "
+ << "have been closed. Another time, this might close the wrong FD.";
+ }
}
/* static */ File File::temporary() {
}
/* static */ File File::temporary() {
@@
-80,7
+86,7
@@
File::~File() {
return File(fd, true);
}
return File(fd, true);
}
-int File::release() {
+int File::release()
noexcept
{
int released = fd_;
fd_ = -1;
ownsFd_ = false;
int released = fd_;
fd_ = -1;
ownsFd_ = false;
@@
-132,7
+138,9
@@
void File::doLock(int op) {
bool File::doTryLock(int op) {
int r = flockNoInt(fd_, op | LOCK_NB);
// flock returns EWOULDBLOCK if already locked
bool File::doTryLock(int op) {
int r = flockNoInt(fd_, op | LOCK_NB);
// flock returns EWOULDBLOCK if already locked
- if (r == -1 && errno == EWOULDBLOCK) return false;
+ if (r == -1 && errno == EWOULDBLOCK) {
+ return false;
+ }
checkUnixError(r, "flock() failed (try_lock)");
return true;
}
checkUnixError(r, "flock() failed (try_lock)");
return true;
}
@@
-142,4
+150,4
@@
void File::unlock() {
}
void File::unlock_shared() { unlock(); }
}
void File::unlock_shared() { unlock(); }
-}
// namespace folly
+} // namespace folly