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lib/std/io: let the bring-your-own OS package handle stdio (#3887)

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This commit is contained in:
Christine Dodrill 2019-12-11 18:37:52 -05:00 committed by Andrew Kelley
parent 7c1dbfab72
commit b375f6e027
1 changed files with 36 additions and 9 deletions
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45
lib/std/io.zig
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@ -34,25 +34,52 @@ else
Mode.blocking;
pub const is_async = mode != .blocking;
pub fn getStdOut() File {
fn getStdOutHandle() os.fd_t {
if (builtin.os == .windows) {
return File.openHandle(os.windows.peb().ProcessParameters.hStdOutput);
return os.windows.peb().ProcessParameters.hStdOutput;
}
return File.openHandle(os.STDOUT_FILENO);
if (@hasDecl(root, "os") and @hasDecl(root.os, "io") and @hasDecl(root.os.io, "getStdOutHandle")) {
return root.os.io.getStdOutHandle();
}
return os.STDOUT_FILENO;
}
pub fn getStdOut() File {
return File.openHandle(getStdOutHandle());
}
fn getStdErrHandle() os.fd_t {
if (builtin.os == .windows) {
return os.windows.peb().ProcessParameters.hStdError;
}
if (@hasDecl(root, "os") and @hasDecl(root.os, "io") and @hasDecl(root.os.io, "getStdErrHandle")) {
return root.os.io.getStdErrHandle();
}
return os.STDERR_FILENO;
}
pub fn getStdErr() File {
return File.openHandle(getStdErrHandle());
}
fn getStdInHandle() os.fd_t {
if (builtin.os == .windows) {
return File.openHandle(os.windows.peb().ProcessParameters.hStdError);
return os.windows.peb().ProcessParameters.hStdInput;
}
return File.openHandle(os.STDERR_FILENO);
if (@hasDecl(root, "os") and @hasDecl(root.os, "io") and @hasDecl(root.os.io, "getStdInHandle")) {
return root.os.io.getStdInHandle();
}
return os.STDIN_FILENO;
}
pub fn getStdIn() File {
if (builtin.os == .windows) {
return File.openHandle(os.windows.peb().ProcessParameters.hStdInput);
}
return File.openHandle(os.STDIN_FILENO);
return File.openHandle(getStdInHandle());
}
pub const SeekableStream = @import("io/seekable_stream.zig").SeekableStream;