This commit is contained in:
gabime 2017-11-06 12:39:04 +02:00
parent 6ab2f0e099
commit 93be7713e0
11 changed files with 4457 additions and 3587 deletions

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@ -50,119 +50,127 @@ Distributed under the MIT License (http://opensource.org/licenses/MIT)
namespace spdlog namespace spdlog
{ {
namespace details namespace details
{ {
template<typename T> template<typename T>
class mpmc_bounded_queue class mpmc_bounded_queue
{ {
public: public:
using item_type = T; using item_type = T;
mpmc_bounded_queue(size_t buffer_size) mpmc_bounded_queue(size_t buffer_size)
:max_size_(buffer_size), :max_size_(buffer_size),
buffer_(new cell_t[buffer_size]), buffer_(new cell_t[buffer_size]),
buffer_mask_(buffer_size - 1) buffer_mask_(buffer_size - 1)
{ {
//queue size must be power of two //queue size must be power of two
if (!((buffer_size >= 2) && ((buffer_size & (buffer_size - 1)) == 0))) if (!((buffer_size >= 2) && ((buffer_size & (buffer_size - 1)) == 0)))
throw spdlog_ex("async logger queue size must be power of two"); throw spdlog_ex("async logger queue size must be power of two");
for (size_t i = 0; i != buffer_size; i += 1) for (size_t i = 0; i != buffer_size; i += 1)
buffer_[i].sequence_.store(i, std::memory_order_relaxed); buffer_[i].sequence_.store(i, std::memory_order_relaxed);
enqueue_pos_.store(0, std::memory_order_relaxed); enqueue_pos_.store(0, std::memory_order_relaxed);
dequeue_pos_.store(0, std::memory_order_relaxed); dequeue_pos_.store(0, std::memory_order_relaxed);
} }
~mpmc_bounded_queue() ~mpmc_bounded_queue()
{ {
delete[] buffer_; delete[] buffer_;
} }
bool enqueue(T&& data) bool enqueue(T&& data)
{ {
cell_t* cell; cell_t* cell;
size_t pos = enqueue_pos_.load(std::memory_order_relaxed); size_t pos = enqueue_pos_.load(std::memory_order_relaxed);
for (;;) { for (;;)
cell = &buffer_[pos & buffer_mask_]; {
size_t seq = cell->sequence_.load(std::memory_order_acquire); cell = &buffer_[pos & buffer_mask_];
intptr_t dif = static_cast<intptr_t>(seq) - static_cast<intptr_t>(pos); size_t seq = cell->sequence_.load(std::memory_order_acquire);
if (dif == 0) { intptr_t dif = static_cast<intptr_t>(seq) - static_cast<intptr_t>(pos);
if (enqueue_pos_.compare_exchange_weak(pos, pos + 1, std::memory_order_relaxed)) if (dif == 0)
break; {
} if (enqueue_pos_.compare_exchange_weak(pos, pos + 1, std::memory_order_relaxed))
else if (dif < 0) { break;
return false; }
} else if (dif < 0)
else { {
pos = enqueue_pos_.load(std::memory_order_relaxed); return false;
} }
} else
cell->data_ = std::move(data); {
cell->sequence_.store(pos + 1, std::memory_order_release); pos = enqueue_pos_.load(std::memory_order_relaxed);
return true; }
} }
cell->data_ = std::move(data);
cell->sequence_.store(pos + 1, std::memory_order_release);
return true;
}
bool dequeue(T& data) bool dequeue(T& data)
{ {
cell_t* cell; cell_t* cell;
size_t pos = dequeue_pos_.load(std::memory_order_relaxed); size_t pos = dequeue_pos_.load(std::memory_order_relaxed);
for (;;) { for (;;)
cell = &buffer_[pos & buffer_mask_]; {
size_t seq = cell = &buffer_[pos & buffer_mask_];
cell->sequence_.load(std::memory_order_acquire); size_t seq =
intptr_t dif = static_cast<intptr_t>(seq) - static_cast<intptr_t>(pos + 1); cell->sequence_.load(std::memory_order_acquire);
if (dif == 0) { intptr_t dif = static_cast<intptr_t>(seq) - static_cast<intptr_t>(pos + 1);
if (dequeue_pos_.compare_exchange_weak(pos, pos + 1, std::memory_order_relaxed)) if (dif == 0)
break; {
} if (dequeue_pos_.compare_exchange_weak(pos, pos + 1, std::memory_order_relaxed))
else if (dif < 0) break;
return false; }
else else if (dif < 0)
pos = dequeue_pos_.load(std::memory_order_relaxed); return false;
} else
data = std::move(cell->data_); pos = dequeue_pos_.load(std::memory_order_relaxed);
cell->sequence_.store(pos + buffer_mask_ + 1, std::memory_order_release); }
return true; data = std::move(cell->data_);
} cell->sequence_.store(pos + buffer_mask_ + 1, std::memory_order_release);
return true;
}
bool is_empty() bool is_empty()
{ {
size_t front, front1, back; size_t front, front1, back;
// try to take a consistent snapshot of front/tail. // try to take a consistent snapshot of front/tail.
do { do
front = enqueue_pos_.load(std::memory_order_acquire); {
back = dequeue_pos_.load(std::memory_order_acquire); front = enqueue_pos_.load(std::memory_order_acquire);
front1 = enqueue_pos_.load(std::memory_order_relaxed); back = dequeue_pos_.load(std::memory_order_acquire);
} while (front != front1); front1 = enqueue_pos_.load(std::memory_order_relaxed);
return back == front; }
} while (front != front1);
return back == front;
}
private: private:
struct cell_t struct cell_t
{ {
std::atomic<size_t> sequence_; std::atomic<size_t> sequence_;
T data_; T data_;
}; };
size_t const max_size_; size_t const max_size_;
static size_t const cacheline_size = 64; static size_t const cacheline_size = 64;
typedef char cacheline_pad_t[cacheline_size]; typedef char cacheline_pad_t[cacheline_size];
cacheline_pad_t pad0_; cacheline_pad_t pad0_;
cell_t* const buffer_; cell_t* const buffer_;
size_t const buffer_mask_; size_t const buffer_mask_;
cacheline_pad_t pad1_; cacheline_pad_t pad1_;
std::atomic<size_t> enqueue_pos_; std::atomic<size_t> enqueue_pos_;
cacheline_pad_t pad2_; cacheline_pad_t pad2_;
std::atomic<size_t> dequeue_pos_; std::atomic<size_t> dequeue_pos_;
cacheline_pad_t pad3_; cacheline_pad_t pad3_;
mpmc_bounded_queue(mpmc_bounded_queue const&) = delete; mpmc_bounded_queue(mpmc_bounded_queue const&) = delete;
void operator= (mpmc_bounded_queue const&) = delete; void operator= (mpmc_bounded_queue const&) = delete;
}; };
} // ns details } // ns details
} // ns spdlog } // ns spdlog

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@ -13,57 +13,65 @@
#include "format.h" #include "format.h"
#include <ostream> #include <ostream>
namespace fmt { namespace fmt
{
namespace internal { namespace internal
{
template <class Char> template <class Char>
class FormatBuf : public std::basic_streambuf<Char> { class FormatBuf : public std::basic_streambuf<Char>
private: {
typedef typename std::basic_streambuf<Char>::int_type int_type; private:
typedef typename std::basic_streambuf<Char>::traits_type traits_type; typedef typename std::basic_streambuf<Char>::int_type int_type;
typedef typename std::basic_streambuf<Char>::traits_type traits_type;
Buffer<Char> &buffer_; Buffer<Char> &buffer_;
public: public:
FormatBuf(Buffer<Char> &buffer) : buffer_(buffer) {} FormatBuf(Buffer<Char> &buffer) : buffer_(buffer) {}
protected: protected:
// The put-area is actually always empty. This makes the implementation // The put-area is actually always empty. This makes the implementation
// simpler and has the advantage that the streambuf and the buffer are always // simpler and has the advantage that the streambuf and the buffer are always
// in sync and sputc never writes into uninitialized memory. The obvious // in sync and sputc never writes into uninitialized memory. The obvious
// disadvantage is that each call to sputc always results in a (virtual) call // disadvantage is that each call to sputc always results in a (virtual) call
// to overflow. There is no disadvantage here for sputn since this always // to overflow. There is no disadvantage here for sputn since this always
// results in a call to xsputn. // results in a call to xsputn.
int_type overflow(int_type ch = traits_type::eof()) FMT_OVERRIDE { int_type overflow(int_type ch = traits_type::eof()) FMT_OVERRIDE
if (!traits_type::eq_int_type(ch, traits_type::eof())) {
buffer_.push_back(static_cast<Char>(ch)); if (!traits_type::eq_int_type(ch, traits_type::eof()))
return ch; buffer_.push_back(static_cast<Char>(ch));
} return ch;
}
std::streamsize xsputn(const Char *s, std::streamsize count) FMT_OVERRIDE { std::streamsize xsputn(const Char *s, std::streamsize count) FMT_OVERRIDE
buffer_.append(s, s + count); {
return count; buffer_.append(s, s + count);
} return count;
}
}; };
Yes &convert(std::ostream &); Yes &convert(std::ostream &);
struct DummyStream : std::ostream { struct DummyStream : std::ostream
DummyStream(); // Suppress a bogus warning in MSVC. {
// Hide all operator<< overloads from std::ostream. DummyStream(); // Suppress a bogus warning in MSVC.
void operator<<(Null<>); // Hide all operator<< overloads from std::ostream.
void operator<<(Null<>);
}; };
No &operator<<(std::ostream &, int); No &operator<<(std::ostream &, int);
template<typename T> template<typename T>
struct ConvertToIntImpl<T, true> { struct ConvertToIntImpl<T, true>
// Convert to int only if T doesn't have an overloaded operator<<. {
enum { // Convert to int only if T doesn't have an overloaded operator<<.
value = sizeof(convert(get<DummyStream>() << get<T>())) == sizeof(No) enum
}; {
value = sizeof(convert(get<DummyStream>() << get<T>())) == sizeof(No)
};
}; };
// Write the content of w to os. // Write the content of w to os.
@ -73,16 +81,17 @@ FMT_API void write(std::ostream &os, Writer &w);
// Formats a value. // Formats a value.
template <typename Char, typename ArgFormatter_, typename T> template <typename Char, typename ArgFormatter_, typename T>
void format_arg(BasicFormatter<Char, ArgFormatter_> &f, void format_arg(BasicFormatter<Char, ArgFormatter_> &f,
const Char *&format_str, const T &value) { const Char *&format_str, const T &value)
internal::MemoryBuffer<Char, internal::INLINE_BUFFER_SIZE> buffer; {
internal::MemoryBuffer<Char, internal::INLINE_BUFFER_SIZE> buffer;
internal::FormatBuf<Char> format_buf(buffer); internal::FormatBuf<Char> format_buf(buffer);
std::basic_ostream<Char> output(&format_buf); std::basic_ostream<Char> output(&format_buf);
output << value; output << value;
BasicStringRef<Char> str(&buffer[0], buffer.size()); BasicStringRef<Char> str(&buffer[0], buffer.size());
typedef internal::MakeArg< BasicFormatter<Char> > MakeArg; typedef internal::MakeArg< BasicFormatter<Char> > MakeArg;
format_str = f.format(format_str, MakeArg(str)); format_str = f.format(format_str, MakeArg(str));
} }
/** /**

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@ -64,112 +64,134 @@
#define FMT_RETRY(result, expression) FMT_RETRY_VAL(result, expression, -1) #define FMT_RETRY(result, expression) FMT_RETRY_VAL(result, expression, -1)
namespace fmt { namespace fmt
{
// An error code. // An error code.
class ErrorCode { class ErrorCode
private: {
int value_; private:
int value_;
public: public:
explicit ErrorCode(int value = 0) FMT_NOEXCEPT : value_(value) {} explicit ErrorCode(int value = 0) FMT_NOEXCEPT :
value_(value) {}
int get() const FMT_NOEXCEPT { return value_; } int get() const FMT_NOEXCEPT
{
return value_;
}
}; };
// A buffered file. // A buffered file.
class BufferedFile { class BufferedFile
private: {
FILE *file_; private:
FILE *file_;
friend class File; friend class File;
explicit BufferedFile(FILE *f) : file_(f) {} explicit BufferedFile(FILE *f) : file_(f) {}
public:
// Constructs a BufferedFile object which doesn't represent any file.
BufferedFile() FMT_NOEXCEPT : file_(FMT_NULL) {}
// Destroys the object closing the file it represents if any.
FMT_API ~BufferedFile() FMT_NOEXCEPT;
#if !FMT_USE_RVALUE_REFERENCES
// Emulate a move constructor and a move assignment operator if rvalue
// references are not supported.
private:
// A proxy object to emulate a move constructor.
// It is private to make it impossible call operator Proxy directly.
struct Proxy {
FILE *file;
};
public: public:
// A "move constructor" for moving from a temporary. // Constructs a BufferedFile object which doesn't represent any file.
BufferedFile(Proxy p) FMT_NOEXCEPT : file_(p.file) {} BufferedFile() FMT_NOEXCEPT :
file_(FMT_NULL) {}
// A "move constructor" for moving from an lvalue. // Destroys the object closing the file it represents if any.
BufferedFile(BufferedFile &f) FMT_NOEXCEPT : file_(f.file_) { FMT_API ~BufferedFile() FMT_NOEXCEPT;
f.file_ = FMT_NULL;
}
// A "move assignment operator" for moving from a temporary. #if !FMT_USE_RVALUE_REFERENCES
BufferedFile &operator=(Proxy p) { // Emulate a move constructor and a move assignment operator if rvalue
close(); // references are not supported.
file_ = p.file;
return *this;
}
// A "move assignment operator" for moving from an lvalue. private:
BufferedFile &operator=(BufferedFile &other) { // A proxy object to emulate a move constructor.
close(); // It is private to make it impossible call operator Proxy directly.
file_ = other.file_; struct Proxy
other.file_ = FMT_NULL; {
return *this; FILE *file;
} };
// Returns a proxy object for moving from a temporary: public:
// BufferedFile file = BufferedFile(...); // A "move constructor" for moving from a temporary.
operator Proxy() FMT_NOEXCEPT { BufferedFile(Proxy p) FMT_NOEXCEPT :
Proxy p = {file_}; file_(p.file) {}
file_ = FMT_NULL;
return p; // A "move constructor" for moving from an lvalue.
} BufferedFile(BufferedFile &f) FMT_NOEXCEPT :
file_(f.file_)
{
f.file_ = FMT_NULL;
}
// A "move assignment operator" for moving from a temporary.
BufferedFile &operator=(Proxy p)
{
close();
file_ = p.file;
return *this;
}
// A "move assignment operator" for moving from an lvalue.
BufferedFile &operator=(BufferedFile &other)
{
close();
file_ = other.file_;
other.file_ = FMT_NULL;
return *this;
}
// Returns a proxy object for moving from a temporary:
// BufferedFile file = BufferedFile(...);
operator Proxy() FMT_NOEXCEPT
{
Proxy p = {file_};
file_ = FMT_NULL;
return p;
}
#else #else
private: private:
FMT_DISALLOW_COPY_AND_ASSIGN(BufferedFile); FMT_DISALLOW_COPY_AND_ASSIGN(BufferedFile);
public: public:
BufferedFile(BufferedFile &&other) FMT_NOEXCEPT : file_(other.file_) { BufferedFile(BufferedFile &&other) FMT_NOEXCEPT :
other.file_ = FMT_NULL; file_(other.file_)
} {
other.file_ = FMT_NULL;
}
BufferedFile& operator=(BufferedFile &&other) { BufferedFile& operator=(BufferedFile &&other)
close(); {
file_ = other.file_; close();
other.file_ = FMT_NULL; file_ = other.file_;
return *this; other.file_ = FMT_NULL;
} return *this;
}
#endif #endif
// Opens a file. // Opens a file.
FMT_API BufferedFile(CStringRef filename, CStringRef mode); FMT_API BufferedFile(CStringRef filename, CStringRef mode);
// Closes the file. // Closes the file.
FMT_API void close(); FMT_API void close();
// Returns the pointer to a FILE object representing this file. // Returns the pointer to a FILE object representing this file.
FILE *get() const FMT_NOEXCEPT { return file_; } FILE *get() const FMT_NOEXCEPT
{
return file_;
}
// We place parentheses around fileno to workaround a bug in some versions // We place parentheses around fileno to workaround a bug in some versions
// of MinGW that define fileno as a macro. // of MinGW that define fileno as a macro.
FMT_API int (fileno)() const; FMT_API int (fileno)() const;
void print(CStringRef format_str, const ArgList &args) { void print(CStringRef format_str, const ArgList &args)
fmt::print(file_, format_str, args); {
} fmt::print(file_, format_str, args);
FMT_VARIADIC(void, print, CStringRef) }
FMT_VARIADIC(void, print, CStringRef)
}; };
// A file. Closed file is represented by a File object with descriptor -1. // A file. Closed file is represented by a File object with descriptor -1.
@ -178,125 +200,141 @@ public:
// closing the file multiple times will cause a crash on Windows rather // closing the file multiple times will cause a crash on Windows rather
// than an exception. You can get standard behavior by overriding the // than an exception. You can get standard behavior by overriding the
// invalid parameter handler with _set_invalid_parameter_handler. // invalid parameter handler with _set_invalid_parameter_handler.
class File { class File
private: {
int fd_; // File descriptor. private:
int fd_; // File descriptor.
// Constructs a File object with a given descriptor. // Constructs a File object with a given descriptor.
explicit File(int fd) : fd_(fd) {} explicit File(int fd) : fd_(fd) {}
public: public:
// Possible values for the oflag argument to the constructor. // Possible values for the oflag argument to the constructor.
enum { enum
RDONLY = FMT_POSIX(O_RDONLY), // Open for reading only. {
WRONLY = FMT_POSIX(O_WRONLY), // Open for writing only. RDONLY = FMT_POSIX(O_RDONLY), // Open for reading only.
RDWR = FMT_POSIX(O_RDWR) // Open for reading and writing. WRONLY = FMT_POSIX(O_WRONLY), // Open for writing only.
}; RDWR = FMT_POSIX(O_RDWR) // Open for reading and writing.
};
// Constructs a File object which doesn't represent any file. // Constructs a File object which doesn't represent any file.
File() FMT_NOEXCEPT : fd_(-1) {} File() FMT_NOEXCEPT :
fd_(-1) {}
// Opens a file and constructs a File object representing this file. // Opens a file and constructs a File object representing this file.
FMT_API File(CStringRef path, int oflag); FMT_API File(CStringRef path, int oflag);
#if !FMT_USE_RVALUE_REFERENCES #if !FMT_USE_RVALUE_REFERENCES
// Emulate a move constructor and a move assignment operator if rvalue // Emulate a move constructor and a move assignment operator if rvalue
// references are not supported. // references are not supported.
private: private:
// A proxy object to emulate a move constructor. // A proxy object to emulate a move constructor.
// It is private to make it impossible call operator Proxy directly. // It is private to make it impossible call operator Proxy directly.
struct Proxy { struct Proxy
int fd; {
}; int fd;
};
public: public:
// A "move constructor" for moving from a temporary. // A "move constructor" for moving from a temporary.
File(Proxy p) FMT_NOEXCEPT : fd_(p.fd) {} File(Proxy p) FMT_NOEXCEPT :
fd_(p.fd) {}
// A "move constructor" for moving from an lvalue. // A "move constructor" for moving from an lvalue.
File(File &other) FMT_NOEXCEPT : fd_(other.fd_) { File(File &other) FMT_NOEXCEPT :
other.fd_ = -1; fd_(other.fd_)
} {
other.fd_ = -1;
}
// A "move assignment operator" for moving from a temporary. // A "move assignment operator" for moving from a temporary.
File &operator=(Proxy p) { File &operator=(Proxy p)
close(); {
fd_ = p.fd; close();
return *this; fd_ = p.fd;
} return *this;
}
// A "move assignment operator" for moving from an lvalue. // A "move assignment operator" for moving from an lvalue.
File &operator=(File &other) { File &operator=(File &other)
close(); {
fd_ = other.fd_; close();
other.fd_ = -1; fd_ = other.fd_;
return *this; other.fd_ = -1;
} return *this;
}
// Returns a proxy object for moving from a temporary: // Returns a proxy object for moving from a temporary:
// File file = File(...); // File file = File(...);
operator Proxy() FMT_NOEXCEPT { operator Proxy() FMT_NOEXCEPT
Proxy p = {fd_}; {
fd_ = -1; Proxy p = {fd_};
return p; fd_ = -1;
} return p;
}
#else #else
private: private:
FMT_DISALLOW_COPY_AND_ASSIGN(File); FMT_DISALLOW_COPY_AND_ASSIGN(File);
public: public:
File(File &&other) FMT_NOEXCEPT : fd_(other.fd_) { File(File &&other) FMT_NOEXCEPT :
other.fd_ = -1; fd_(other.fd_)
} {
other.fd_ = -1;
}
File& operator=(File &&other) { File& operator=(File &&other)
close(); {
fd_ = other.fd_; close();
other.fd_ = -1; fd_ = other.fd_;
return *this; other.fd_ = -1;
} return *this;
}
#endif #endif
// Destroys the object closing the file it represents if any. // Destroys the object closing the file it represents if any.
FMT_API ~File() FMT_NOEXCEPT; FMT_API ~File() FMT_NOEXCEPT;
// Returns the file descriptor. // Returns the file descriptor.
int descriptor() const FMT_NOEXCEPT { return fd_; } int descriptor() const FMT_NOEXCEPT
{
return fd_;
}
// Closes the file. // Closes the file.
FMT_API void close(); FMT_API void close();
// Returns the file size. The size has signed type for consistency with // Returns the file size. The size has signed type for consistency with
// stat::st_size. // stat::st_size.
FMT_API LongLong size() const; FMT_API LongLong size() const;
// Attempts to read count bytes from the file into the specified buffer. // Attempts to read count bytes from the file into the specified buffer.
FMT_API std::size_t read(void *buffer, std::size_t count); FMT_API std::size_t read(void *buffer, std::size_t count);
// Attempts to write count bytes from the specified buffer to the file. // Attempts to write count bytes from the specified buffer to the file.
FMT_API std::size_t write(const void *buffer, std::size_t count); FMT_API std::size_t write(const void *buffer, std::size_t count);
// Duplicates a file descriptor with the dup function and returns // Duplicates a file descriptor with the dup function and returns
// the duplicate as a file object. // the duplicate as a file object.
FMT_API static File dup(int fd); FMT_API static File dup(int fd);
// Makes fd be the copy of this file descriptor, closing fd first if // Makes fd be the copy of this file descriptor, closing fd first if
// necessary. // necessary.
FMT_API void dup2(int fd); FMT_API void dup2(int fd);
// Makes fd be the copy of this file descriptor, closing fd first if // Makes fd be the copy of this file descriptor, closing fd first if
// necessary. // necessary.
FMT_API void dup2(int fd, ErrorCode &ec) FMT_NOEXCEPT; FMT_API void dup2(int fd, ErrorCode &ec) FMT_NOEXCEPT;
// Creates a pipe setting up read_end and write_end file objects for reading // Creates a pipe setting up read_end and write_end file objects for reading
// and writing respectively. // and writing respectively.
FMT_API static void pipe(File &read_end, File &write_end); FMT_API static void pipe(File &read_end, File &write_end);
// Creates a BufferedFile object associated with this file and detaches // Creates a BufferedFile object associated with this file and detaches
// this File object from the file. // this File object from the file.
FMT_API BufferedFile fdopen(const char *mode); FMT_API BufferedFile fdopen(const char *mode);
}; };
// Returns the memory page size. // Returns the memory page size.
@ -309,58 +347,77 @@ long getpagesize();
#ifdef FMT_LOCALE #ifdef FMT_LOCALE
// A "C" numeric locale. // A "C" numeric locale.
class Locale { class Locale
private: {
private:
# ifdef _MSC_VER # ifdef _MSC_VER
typedef _locale_t locale_t; typedef _locale_t locale_t;
enum { LC_NUMERIC_MASK = LC_NUMERIC }; enum { LC_NUMERIC_MASK = LC_NUMERIC };
static locale_t newlocale(int category_mask, const char *locale, locale_t) { static locale_t newlocale(int category_mask, const char *locale, locale_t)
return _create_locale(category_mask, locale); {
} return _create_locale(category_mask, locale);
}
static void freelocale(locale_t locale) { static void freelocale(locale_t locale)
_free_locale(locale); {
} _free_locale(locale);
}
static double strtod_l(const char *nptr, char **endptr, _locale_t locale) { static double strtod_l(const char *nptr, char **endptr, _locale_t locale)
return _strtod_l(nptr, endptr, locale); {
} return _strtod_l(nptr, endptr, locale);
}
# endif # endif
locale_t locale_; locale_t locale_;
FMT_DISALLOW_COPY_AND_ASSIGN(Locale); FMT_DISALLOW_COPY_AND_ASSIGN(Locale);
public: public:
typedef locale_t Type; typedef locale_t Type;
Locale() : locale_(newlocale(LC_NUMERIC_MASK, "C", FMT_NULL)) { Locale() : locale_(newlocale(LC_NUMERIC_MASK, "C", FMT_NULL))
if (!locale_) {
FMT_THROW(fmt::SystemError(errno, "cannot create locale")); if (!locale_)
} FMT_THROW(fmt::SystemError(errno, "cannot create locale"));
~Locale() { freelocale(locale_); } }
~Locale()
{
freelocale(locale_);
}
Type get() const { return locale_; } Type get() const
{
return locale_;
}
// Converts string to floating-point number and advances str past the end // Converts string to floating-point number and advances str past the end
// of the parsed input. // of the parsed input.
double strtod(const char *&str) const { double strtod(const char *&str) const
char *end = FMT_NULL; {
double result = strtod_l(str, &end, locale_); char *end = FMT_NULL;
str = end; double result = strtod_l(str, &end, locale_);
return result; str = end;
} return result;
}
}; };
#endif // FMT_LOCALE #endif // FMT_LOCALE
} // namespace fmt } // namespace fmt
#if !FMT_USE_RVALUE_REFERENCES #if !FMT_USE_RVALUE_REFERENCES
namespace std { namespace std
{
// For compatibility with C++98. // For compatibility with C++98.
inline fmt::BufferedFile &move(fmt::BufferedFile &f) { return f; } inline fmt::BufferedFile &move(fmt::BufferedFile &f)
inline fmt::File &move(fmt::File &f) { return f; } {
return f;
}
inline fmt::File &move(fmt::File &f)
{
return f;
}
} }
#endif #endif

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@ -19,120 +19,160 @@
# pragma warning(disable: 4996) // "deprecated" functions # pragma warning(disable: 4996) // "deprecated" functions
#endif #endif
namespace fmt { namespace fmt
{
template <typename ArgFormatter> template <typename ArgFormatter>
void format_arg(BasicFormatter<char, ArgFormatter> &f, void format_arg(BasicFormatter<char, ArgFormatter> &f,
const char *&format_str, const std::tm &tm) { const char *&format_str, const std::tm &tm)
if (*format_str == ':') {
++format_str; if (*format_str == ':')
const char *end = format_str; ++format_str;
while (*end && *end != '}') const char *end = format_str;
++end; while (*end && *end != '}')
if (*end != '}') ++end;
FMT_THROW(FormatError("missing '}' in format string")); if (*end != '}')
internal::MemoryBuffer<char, internal::INLINE_BUFFER_SIZE> format; FMT_THROW(FormatError("missing '}' in format string"));
format.append(format_str, end + 1); internal::MemoryBuffer<char, internal::INLINE_BUFFER_SIZE> format;
format[format.size() - 1] = '\0'; format.append(format_str, end + 1);
Buffer<char> &buffer = f.writer().buffer(); format[format.size() - 1] = '\0';
std::size_t start = buffer.size(); Buffer<char> &buffer = f.writer().buffer();
for (;;) { std::size_t start = buffer.size();
std::size_t size = buffer.capacity() - start; for (;;)
std::size_t count = std::strftime(&buffer[start], size, &format[0], &tm); {
if (count != 0) { std::size_t size = buffer.capacity() - start;
buffer.resize(start + count); std::size_t count = std::strftime(&buffer[start], size, &format[0], &tm);
break; if (count != 0)
{
buffer.resize(start + count);
break;
}
if (size >= format.size() * 256)
{
// If the buffer is 256 times larger than the format string, assume
// that `strftime` gives an empty result. There doesn't seem to be a
// better way to distinguish the two cases:
// https://github.com/fmtlib/fmt/issues/367
break;
}
const std::size_t MIN_GROWTH = 10;
buffer.reserve(buffer.capacity() + (size > MIN_GROWTH ? size : MIN_GROWTH));
} }
if (size >= format.size() * 256) { format_str = end + 1;
// If the buffer is 256 times larger than the format string, assume
// that `strftime` gives an empty result. There doesn't seem to be a
// better way to distinguish the two cases:
// https://github.com/fmtlib/fmt/issues/367
break;
}
const std::size_t MIN_GROWTH = 10;
buffer.reserve(buffer.capacity() + (size > MIN_GROWTH ? size : MIN_GROWTH));
}
format_str = end + 1;
} }
namespace internal{ namespace internal
inline Null<> localtime_r(...) { return Null<>(); } {
inline Null<> localtime_s(...) { return Null<>(); } inline Null<> localtime_r(...)
inline Null<> gmtime_r(...) { return Null<>(); } {
inline Null<> gmtime_s(...) { return Null<>(); } return Null<>();
}
inline Null<> localtime_s(...)
{
return Null<>();
}
inline Null<> gmtime_r(...)
{
return Null<>();
}
inline Null<> gmtime_s(...)
{
return Null<>();
}
} }
// Thread-safe replacement for std::localtime // Thread-safe replacement for std::localtime
inline std::tm localtime(std::time_t time) { inline std::tm localtime(std::time_t time)
struct LocalTime { {
std::time_t time_; struct LocalTime
std::tm tm_; {
std::time_t time_;
std::tm tm_;
LocalTime(std::time_t t): time_(t) {} LocalTime(std::time_t t): time_(t) {}
bool run() { bool run()
using namespace fmt::internal; {
return handle(localtime_r(&time_, &tm_)); using namespace fmt::internal;
} return handle(localtime_r(&time_, &tm_));
}
bool handle(std::tm *tm) { return tm != FMT_NULL; } bool handle(std::tm *tm)
{
return tm != FMT_NULL;
}
bool handle(internal::Null<>) { bool handle(internal::Null<>)
using namespace fmt::internal; {
return fallback(localtime_s(&tm_, &time_)); using namespace fmt::internal;
} return fallback(localtime_s(&tm_, &time_));
}
bool fallback(int res) { return res == 0; } bool fallback(int res)
{
return res == 0;
}
bool fallback(internal::Null<>) { bool fallback(internal::Null<>)
using namespace fmt::internal; {
std::tm *tm = std::localtime(&time_); using namespace fmt::internal;
if (tm) tm_ = *tm; std::tm *tm = std::localtime(&time_);
return tm != FMT_NULL; if (tm) tm_ = *tm;
} return tm != FMT_NULL;
}; }
LocalTime lt(time); };
if (lt.run()) LocalTime lt(time);
return lt.tm_; if (lt.run())
// Too big time values may be unsupported. return lt.tm_;
FMT_THROW(fmt::FormatError("time_t value out of range")); // Too big time values may be unsupported.
return std::tm(); FMT_THROW(fmt::FormatError("time_t value out of range"));
return std::tm();
} }
// Thread-safe replacement for std::gmtime // Thread-safe replacement for std::gmtime
inline std::tm gmtime(std::time_t time) { inline std::tm gmtime(std::time_t time)
struct GMTime { {
std::time_t time_; struct GMTime
std::tm tm_; {
std::time_t time_;
std::tm tm_;
GMTime(std::time_t t): time_(t) {} GMTime(std::time_t t): time_(t) {}
bool run() { bool run()
using namespace fmt::internal; {
return handle(gmtime_r(&time_, &tm_)); using namespace fmt::internal;
} return handle(gmtime_r(&time_, &tm_));
}
bool handle(std::tm *tm) { return tm != FMT_NULL; } bool handle(std::tm *tm)
{
return tm != FMT_NULL;
}
bool handle(internal::Null<>) { bool handle(internal::Null<>)
using namespace fmt::internal; {
return fallback(gmtime_s(&tm_, &time_)); using namespace fmt::internal;
} return fallback(gmtime_s(&tm_, &time_));
}
bool fallback(int res) { return res == 0; } bool fallback(int res)
{
return res == 0;
}
bool fallback(internal::Null<>) { bool fallback(internal::Null<>)
std::tm *tm = std::gmtime(&time_); {
if (tm != FMT_NULL) tm_ = *tm; std::tm *tm = std::gmtime(&time_);
return tm != FMT_NULL; if (tm != FMT_NULL) tm_ = *tm;
} return tm != FMT_NULL;
}; }
GMTime gt(time); };
if (gt.run()) GMTime gt(time);
return gt.tm_; if (gt.run())
// Too big time values may be unsupported. return gt.tm_;
FMT_THROW(fmt::FormatError("time_t value out of range")); // Too big time values may be unsupported.
return std::tm(); FMT_THROW(fmt::FormatError("time_t value out of range"));
return std::tm();
} }
} //namespace fmt } //namespace fmt

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@ -169,11 +169,11 @@ void drop_all();
#define SPDLOG_STR_H(x) #x #define SPDLOG_STR_H(x) #x
#define SPDLOG_STR_HELPER(x) SPDLOG_STR_H(x) #define SPDLOG_STR_HELPER(x) SPDLOG_STR_H(x)
#ifdef _MSC_VER #ifdef _MSC_VER
#define SPDLOG_TRACE(logger, ...) logger->trace("[ " __FILE__ "(" SPDLOG_STR_HELPER(__LINE__) ") ] " __VA_ARGS__) #define SPDLOG_TRACE(logger, ...) logger->trace("[ " __FILE__ "(" SPDLOG_STR_HELPER(__LINE__) ") ] " __VA_ARGS__)
#define SPDLOG_TRACE_IF(logger, flag, ...) logger->trace_if(flag, "[ " __FILE__ "(" SPDLOG_STR_HELPER(__LINE__) ") ] " __VA_ARGS__) #define SPDLOG_TRACE_IF(logger, flag, ...) logger->trace_if(flag, "[ " __FILE__ "(" SPDLOG_STR_HELPER(__LINE__) ") ] " __VA_ARGS__)
#else #else
#define SPDLOG_TRACE(logger, ...) logger->trace("[ " __FILE__ ":" SPDLOG_STR_HELPER(__LINE__) " ] " __VA_ARGS__) #define SPDLOG_TRACE(logger, ...) logger->trace("[ " __FILE__ ":" SPDLOG_STR_HELPER(__LINE__) " ] " __VA_ARGS__)
#define SPDLOG_TRACE_IF(logger, flag, ...) logger->trace_if(flag, "[ " __FILE__ ":" SPDLOG_STR_HELPER(__LINE__) " ] " __VA_ARGS__) #define SPDLOG_TRACE_IF(logger, flag, ...) logger->trace_if(flag, "[ " __FILE__ ":" SPDLOG_STR_HELPER(__LINE__) " ] " __VA_ARGS__)
#endif #endif
#else #else
#define SPDLOG_TRACE(logger, ...) #define SPDLOG_TRACE(logger, ...)

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@ -6,45 +6,45 @@
TEST_CASE("debug and trace w/o format string", "[macros]]") TEST_CASE("debug and trace w/o format string", "[macros]]")
{ {
prepare_logdir(); prepare_logdir();
std::string filename = "logs/simple_log"; std::string filename = "logs/simple_log";
auto logger = spdlog::create<spdlog::sinks::simple_file_sink_mt>("logger", filename); auto logger = spdlog::create<spdlog::sinks::simple_file_sink_mt>("logger", filename);
logger->set_pattern("%v"); logger->set_pattern("%v");
logger->set_level(spdlog::level::trace); logger->set_level(spdlog::level::trace);
SPDLOG_TRACE(logger, "Test message 1"); SPDLOG_TRACE(logger, "Test message 1");
//SPDLOG_DEBUG(logger, "Test message 2"); //SPDLOG_DEBUG(logger, "Test message 2");
SPDLOG_DEBUG(logger, "Test message 2"); SPDLOG_DEBUG(logger, "Test message 2");
logger->flush(); logger->flush();
REQUIRE(ends_with(file_contents(filename), "Test message 2\n")); REQUIRE(ends_with(file_contents(filename), "Test message 2\n"));
REQUIRE(count_lines(filename) == 2); REQUIRE(count_lines(filename) == 2);
} }
TEST_CASE("debug and trace with format strings", "[macros]]") TEST_CASE("debug and trace with format strings", "[macros]]")
{ {
prepare_logdir(); prepare_logdir();
std::string filename = "logs/simple_log"; std::string filename = "logs/simple_log";
auto logger = spdlog::create<spdlog::sinks::simple_file_sink_mt>("logger", filename); auto logger = spdlog::create<spdlog::sinks::simple_file_sink_mt>("logger", filename);
logger->set_pattern("%v"); logger->set_pattern("%v");
logger->set_level(spdlog::level::trace); logger->set_level(spdlog::level::trace);
#if !defined(SPDLOG_FMT_PRINTF) #if !defined(SPDLOG_FMT_PRINTF)
SPDLOG_TRACE(logger, "Test message {}", 1); SPDLOG_TRACE(logger, "Test message {}", 1);
//SPDLOG_DEBUG(logger, "Test message 2"); //SPDLOG_DEBUG(logger, "Test message 2");
SPDLOG_DEBUG(logger, "Test message {}", 222); SPDLOG_DEBUG(logger, "Test message {}", 222);
#else #else
SPDLOG_TRACE(logger, "Test message %d", 1); SPDLOG_TRACE(logger, "Test message %d", 1);
//SPDLOG_DEBUG(logger, "Test message 2"); //SPDLOG_DEBUG(logger, "Test message 2");
SPDLOG_DEBUG(logger, "Test message %d", 222); SPDLOG_DEBUG(logger, "Test message %d", 222);
#endif #endif
logger->flush(); logger->flush();
REQUIRE(ends_with(file_contents(filename), "Test message 222\n")); REQUIRE(ends_with(file_contents(filename), "Test message 222\n"));
REQUIRE(count_lines(filename) == 2); REQUIRE(count_lines(filename) == 2);
} }

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@ -51,6 +51,6 @@ std::size_t get_filesize(const std::string& filename)
// source: https://stackoverflow.com/a/2072890/192001 // source: https://stackoverflow.com/a/2072890/192001
bool ends_with(std::string const & value, std::string const & ending) bool ends_with(std::string const & value, std::string const & ending)
{ {
if (ending.size() > value.size()) return false; if (ending.size() > value.size()) return false;
return std::equal(ending.rbegin(), ending.rend(), value.rbegin()); return std::equal(ending.rbegin(), ending.rend(), value.rbegin());
} }