#ifndef FMT_OS_H_
#define FMT_OS_H_
-#if defined(__MINGW32__) || defined(__CYGWIN__)
-// Workaround MinGW bug https://sourceforge.net/p/mingw/bugs/2024/.
-# undef __STRICT_ANSI__
-#endif
-
#include <cerrno>
-#include <clocale> // for locale_t
+#include <clocale> // locale_t
#include <cstddef>
#include <cstdio>
-#include <cstdlib> // for strtod_l
+#include <cstdlib> // strtod_l
+#include <system_error> // std::system_error
#if defined __APPLE__ || defined(__FreeBSD__)
# include <xlocale.h> // for LC_NUMERIC_MASK on OS X
#if FMT_HAS_INCLUDE("winapifamily.h")
# include <winapifamily.h>
#endif
-#if FMT_HAS_INCLUDE("fcntl.h") && \
+#if (FMT_HAS_INCLUDE(<fcntl.h>) || defined(__APPLE__) || \
+ defined(__linux__)) && \
(!defined(WINAPI_FAMILY) || (WINAPI_FAMILY == WINAPI_FAMILY_DESKTOP_APP))
# include <fcntl.h> // for O_RDONLY
# define FMT_USE_FCNTL 1
#define FMT_RETRY(result, expression) FMT_RETRY_VAL(result, expression, -1)
FMT_BEGIN_NAMESPACE
+FMT_MODULE_EXPORT_BEGIN
/**
\rst
using cstring_view = basic_cstring_view<char>;
using wcstring_view = basic_cstring_view<wchar_t>;
-// An error code.
-class error_code {
- private:
- int value_;
-
- public:
- explicit error_code(int value = 0) FMT_NOEXCEPT : value_(value) {}
+template <typename Char> struct formatter<std::error_code, Char> {
+ template <typename ParseContext>
+ FMT_CONSTEXPR auto parse(ParseContext& ctx) -> decltype(ctx.begin()) {
+ return ctx.begin();
+ }
- int get() const FMT_NOEXCEPT { return value_; }
+ template <typename FormatContext>
+ FMT_CONSTEXPR auto format(const std::error_code& ec, FormatContext& ctx) const
+ -> decltype(ctx.out()) {
+ auto out = ctx.out();
+ out = detail::write_bytes(out, ec.category().name(),
+ basic_format_specs<Char>());
+ out = detail::write<Char>(out, Char(':'));
+ out = detail::write<Char>(out, ec.value());
+ return out;
+ }
};
#ifdef _WIN32
-namespace detail {
+FMT_API const std::error_category& system_category() FMT_NOEXCEPT;
+
+FMT_BEGIN_DETAIL_NAMESPACE
// A converter from UTF-16 to UTF-8.
// It is only provided for Windows since other systems support UTF-8 natively.
class utf16_to_utf8 {
public:
utf16_to_utf8() {}
- FMT_API explicit utf16_to_utf8(wstring_view s);
+ FMT_API explicit utf16_to_utf8(basic_string_view<wchar_t> s);
operator string_view() const { return string_view(&buffer_[0], size()); }
size_t size() const { return buffer_.size() - 1; }
const char* c_str() const { return &buffer_[0]; }
// Performs conversion returning a system error code instead of
// throwing exception on conversion error. This method may still throw
// in case of memory allocation error.
- FMT_API int convert(wstring_view s);
+ FMT_API int convert(basic_string_view<wchar_t> s);
};
FMT_API void format_windows_error(buffer<char>& out, int error_code,
- string_view message) FMT_NOEXCEPT;
-} // namespace detail
+ const char* message) FMT_NOEXCEPT;
+FMT_END_DETAIL_NAMESPACE
-/** A Windows error. */
-class windows_error : public system_error {
- private:
- FMT_API void init(int error_code, string_view format_str, format_args args);
+FMT_API std::system_error vwindows_error(int error_code, string_view format_str,
+ format_args args);
- public:
- /**
- \rst
- Constructs a :class:`fmt::windows_error` object with the description
- of the form
-
- .. parsed-literal::
- *<message>*: *<system-message>*
-
- where *<message>* is the formatted message and *<system-message>* is the
- system message corresponding to the error code.
- *error_code* is a Windows error code as given by ``GetLastError``.
- If *error_code* is not a valid error code such as -1, the system message
- will look like "error -1".
-
- **Example**::
-
- // This throws a windows_error with the description
- // cannot open file 'madeup': The system cannot find the file specified.
- // or similar (system message may vary).
- const char *filename = "madeup";
- LPOFSTRUCT of = LPOFSTRUCT();
- HFILE file = OpenFile(filename, &of, OF_READ);
- if (file == HFILE_ERROR) {
- throw fmt::windows_error(GetLastError(),
- "cannot open file '{}'", filename);
- }
- \endrst
- */
- template <typename... Args>
- windows_error(int error_code, string_view message, const Args&... args) {
- init(error_code, message, make_format_args(args...));
- }
-};
+/**
+ \rst
+ Constructs a :class:`std::system_error` object with the description
+ of the form
+
+ .. parsed-literal::
+ *<message>*: *<system-message>*
+
+ where *<message>* is the formatted message and *<system-message>* is the
+ system message corresponding to the error code.
+ *error_code* is a Windows error code as given by ``GetLastError``.
+ If *error_code* is not a valid error code such as -1, the system message
+ will look like "error -1".
+
+ **Example**::
+
+ // This throws a system_error with the description
+ // cannot open file 'madeup': The system cannot find the file specified.
+ // or similar (system message may vary).
+ const char *filename = "madeup";
+ LPOFSTRUCT of = LPOFSTRUCT();
+ HFILE file = OpenFile(filename, &of, OF_READ);
+ if (file == HFILE_ERROR) {
+ throw fmt::windows_error(GetLastError(),
+ "cannot open file '{}'", filename);
+ }
+ \endrst
+*/
+template <typename... Args>
+std::system_error windows_error(int error_code, string_view message,
+ const Args&... args) {
+ return vwindows_error(error_code, message, fmt::make_format_args(args...));
+}
// Reports a Windows error without throwing an exception.
// Can be used to report errors from destructors.
FMT_API void report_windows_error(int error_code,
- string_view message) FMT_NOEXCEPT;
+ const char* message) FMT_NOEXCEPT;
+#else
+inline const std::error_category& system_category() FMT_NOEXCEPT {
+ return std::system_category();
+}
#endif // _WIN32
+// std::system is not available on some platforms such as iOS (#2248).
+#ifdef __OSX__
+template <typename S, typename... Args, typename Char = char_t<S>>
+void say(const S& format_str, Args&&... args) {
+ std::system(format("say \"{}\"", format(format_str, args...)).c_str());
+}
+#endif
+
// A buffered file.
class buffered_file {
private:
template <typename... Args>
inline void print(string_view format_str, const Args&... args) {
- vprint(format_str, make_format_args(args...));
+ vprint(format_str, fmt::make_format_args(args...));
}
};
enum {
RDONLY = FMT_POSIX(O_RDONLY), // Open for reading only.
WRONLY = FMT_POSIX(O_WRONLY), // Open for writing only.
- RDWR = FMT_POSIX(O_RDWR) // Open for reading and writing.
+ RDWR = FMT_POSIX(O_RDWR), // Open for reading and writing.
+ CREATE = FMT_POSIX(O_CREAT), // Create if the file doesn't exist.
+ APPEND = FMT_POSIX(O_APPEND), // Open in append mode.
+ TRUNC = FMT_POSIX(O_TRUNC) // Truncate the content of the file.
};
// Constructs a file object which doesn't represent any file.
file(file&& other) FMT_NOEXCEPT : fd_(other.fd_) { other.fd_ = -1; }
- file& operator=(file&& other) FMT_NOEXCEPT {
+ // Move assignment is not noexcept because close may throw.
+ file& operator=(file&& other) {
close();
fd_ = other.fd_;
other.fd_ = -1;
// Makes fd be the copy of this file descriptor, closing fd first if
// necessary.
- FMT_API void dup2(int fd, error_code& ec) FMT_NOEXCEPT;
+ FMT_API void dup2(int fd, std::error_code& ec) FMT_NOEXCEPT;
// Creates a pipe setting up read_end and write_end file objects for reading
// and writing respectively.
// Returns the memory page size.
long getpagesize();
+
+FMT_BEGIN_DETAIL_NAMESPACE
+
+struct buffer_size {
+ buffer_size() = default;
+ size_t value = 0;
+ buffer_size operator=(size_t val) const {
+ auto bs = buffer_size();
+ bs.value = val;
+ return bs;
+ }
+};
+
+struct ostream_params {
+ int oflag = file::WRONLY | file::CREATE | file::TRUNC;
+ size_t buffer_size = BUFSIZ > 32768 ? BUFSIZ : 32768;
+
+ ostream_params() {}
+
+ template <typename... T>
+ ostream_params(T... params, int new_oflag) : ostream_params(params...) {
+ oflag = new_oflag;
+ }
+
+ template <typename... T>
+ ostream_params(T... params, detail::buffer_size bs)
+ : ostream_params(params...) {
+ this->buffer_size = bs.value;
+ }
+};
+
+FMT_END_DETAIL_NAMESPACE
+
+static constexpr detail::buffer_size buffer_size;
+
+/** A fast output stream which is not thread-safe. */
+class FMT_API ostream final : private detail::buffer<char> {
+ private:
+ file file_;
+
+ void flush() {
+ if (size() == 0) return;
+ file_.write(data(), size());
+ clear();
+ }
+
+ void grow(size_t) override;
+
+ ostream(cstring_view path, const detail::ostream_params& params)
+ : file_(path, params.oflag) {
+ set(new char[params.buffer_size], params.buffer_size);
+ }
+
+ public:
+ ostream(ostream&& other)
+ : detail::buffer<char>(other.data(), other.size(), other.capacity()),
+ file_(std::move(other.file_)) {
+ other.clear();
+ other.set(nullptr, 0);
+ }
+ ~ostream() {
+ flush();
+ delete[] data();
+ }
+
+ template <typename... T>
+ friend ostream output_file(cstring_view path, T... params);
+
+ void close() {
+ flush();
+ file_.close();
+ }
+
+ /**
+ Formats ``args`` according to specifications in ``fmt`` and writes the
+ output to the file.
+ */
+ template <typename... T> void print(format_string<T...> fmt, T&&... args) {
+ vformat_to(detail::buffer_appender<char>(*this), fmt,
+ fmt::make_format_args(args...));
+ }
+};
+
+/**
+ \rst
+ Opens a file for writing. Supported parameters passed in *params*:
+
+ * ``<integer>``: Flags passed to `open
+ <https://pubs.opengroup.org/onlinepubs/007904875/functions/open.html>`_
+ (``file::WRONLY | file::CREATE`` by default)
+ * ``buffer_size=<integer>``: Output buffer size
+
+ **Example**::
+
+ auto out = fmt::output_file("guide.txt");
+ out.print("Don't {}", "Panic");
+ \endrst
+ */
+template <typename... T>
+inline ostream output_file(cstring_view path, T... params) {
+ return {path, detail::ostream_params(params...)};
+}
#endif // FMT_USE_FCNTL
#ifdef FMT_LOCALE
};
using Locale FMT_DEPRECATED_ALIAS = locale;
#endif // FMT_LOCALE
+FMT_MODULE_EXPORT_END
FMT_END_NAMESPACE
#endif // FMT_OS_H_
projects / ceph.git / blobdiff