mirror of
https://github.com/ziglang/zig.git
synced 2025-12-06 06:13:07 +00:00
0e37ff0d59
added adapter to AnyWriter and GenericWriter to help bridge the gap
between old and new API
make std.testing.expectFmt work at compile-time
std.fmt no longer has a dependency on std.unicode. Formatted printing
was never properly unicode-aware. Now it no longer pretends to be.
Breakage/deprecations:
* std.fs.File.reader -> std.fs.File.deprecatedReader
* std.fs.File.writer -> std.fs.File.deprecatedWriter
* std.io.GenericReader -> std.io.Reader
* std.io.GenericWriter -> std.io.Writer
* std.io.AnyReader -> std.io.Reader
* std.io.AnyWriter -> std.io.Writer
* std.fmt.format -> std.fmt.deprecatedFormat
* std.fmt.fmtSliceEscapeLower -> std.ascii.hexEscape
* std.fmt.fmtSliceEscapeUpper -> std.ascii.hexEscape
* std.fmt.fmtSliceHexLower -> {x}
* std.fmt.fmtSliceHexUpper -> {X}
* std.fmt.fmtIntSizeDec -> {B}
* std.fmt.fmtIntSizeBin -> {Bi}
* std.fmt.fmtDuration -> {D}
* std.fmt.fmtDurationSigned -> {D}
* {} -> {f} when there is a format method
* format method signature
- anytype -> *std.io.Writer
- inferred error set -> error{WriteFailed}
- options -> (deleted)
* std.fmt.Formatted
- now takes context type explicitly
- no fmt string
50 lines
2.0 KiB
Zig
50 lines
2.0 KiB
Zig
const std = @import("../std.zig");
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const fd_t = std.c.fd_t;
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const off_t = std.c.off_t;
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const unexpectedErrno = std.posix.unexpectedErrno;
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const errno = std.posix.errno;
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pub const CopyFileRangeError = error{
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/// If infd is not open for reading or outfd is not open for writing, or
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/// opened for writing with O_APPEND, or if infd and outfd refer to the
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/// same file.
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BadFileFlags,
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/// If the copy exceeds the process's file size limit or the maximum
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/// file size for the file system outfd re- sides on.
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FileTooBig,
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/// A signal interrupted the system call before it could be completed.
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/// This may happen for files on some NFS mounts. When this happens,
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/// the values pointed to by inoffp and outoffp are reset to the
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/// initial values for the system call.
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Interrupted,
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/// One of:
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/// * infd and outfd refer to the same file and the byte ranges overlap.
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/// * The flags argument is not zero.
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/// * Either infd or outfd refers to a file object that is not a regular file.
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InvalidArguments,
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/// An I/O error occurred while reading/writing the files.
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InputOutput,
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/// Corrupted data was detected while reading from a file system.
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CorruptedData,
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/// Either infd or outfd refers to a directory.
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IsDir,
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/// File system that stores outfd is full.
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NoSpaceLeft,
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};
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pub fn copy_file_range(fd_in: fd_t, off_in: ?*i64, fd_out: fd_t, off_out: ?*i64, len: usize, flags: u32) CopyFileRangeError!usize {
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const rc = std.c.copy_file_range(fd_in, off_in, fd_out, off_out, len, flags);
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switch (errno(rc)) {
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.SUCCESS => return @intCast(rc),
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.BADF => return error.BadFileFlags,
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.FBIG => return error.FileTooBig,
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.INTR => return error.Interrupted,
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.INVAL => return error.InvalidArguments,
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.IO => return error.InputOutput,
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.INTEGRITY => return error.CorruptedData,
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.ISDIR => return error.IsDir,
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.NOSPC => return error.NoSpaceLeft,
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else => |err| return unexpectedErrno(err),
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}
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}
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