mcpplibs.os 0.2.0

Co-authored-by: speak-agent <248744407+speak-agent@users.noreply.github.com>

Author: Sunrisepeak

CHANGELOG.md

@@ -38,6 +38,12 @@
   openkal-macos 0.15.1 与 openkal-windows 0.13.3,以 `KAL_SPAWN_ONE_STRING` 启动命令解释器的 image 在 okrun
   下得到该标志的语义;三个包仍为同一版本、同一归档。openkal-musl 随 openkal-windows 0.13.3 与 openkal-ld 0.1.1
   移动,openkal-llvm-runtime 随 openkal-musl 移动。测试成员 `openkal`、`openkal-musl`、`openkal-tools` 随之移动。
+- **mcpplibs.os 0.2.0。** mcpp 的操作系统层所承载的内容进入 os:`exec`(本进程成为另一个程序)、
+  一个管道按写入顺序承载输出与错误输出、追加写与持久化、卷的容量、`place` 与 `exchange`、属主、
+  处理器数与可用内存、有界读取输入、发往错误流的输出、保留中断的原始模式,以及 Windows 的事实。
+  基于 openkal 0.17.1(openkal-linux 0.18.2、openkal-macos 0.15.1、openkal-windows 0.13.3);ok image
+  形态基于 openkal-llvm-runtime 0.16.3 与 openkal-tools 0.1.1。测试成员 `os` 移到 0.2.0,并观察两个输出
+  经一个管道按序到达。
 
 ### Changed
 

pkgs/o/os.lua

@@ -26,6 +26,10 @@ package = {
 
     xpm = {
         linux = {
+            ["0.2.0"] = {
+                url    = "https://github.com/mcpplibs/os/archive/refs/tags/0.2.0.tar.gz",
+                sha256 = "9dc147ad8dca0216549c40dc4dfabaed7394cdf7a7f253c58613ccc226abd04e",
+            },
             ["0.1.2"] = {
                 url    = "https://github.com/mcpplibs/os/archive/refs/tags/0.1.2.tar.gz",
                 sha256 = "bf6f5cfb1518b045b693e246ee39306746074586434419d4052e648be111ea34",
@@ -43,6 +47,10 @@ package = {
             },
         },
         macosx = {
+            ["0.2.0"] = {
+                url    = "https://github.com/mcpplibs/os/archive/refs/tags/0.2.0.tar.gz",
+                sha256 = "9dc147ad8dca0216549c40dc4dfabaed7394cdf7a7f253c58613ccc226abd04e",
+            },
             ["0.1.2"] = {
                 url    = "https://github.com/mcpplibs/os/archive/refs/tags/0.1.2.tar.gz",
                 sha256 = "bf6f5cfb1518b045b693e246ee39306746074586434419d4052e648be111ea34",
@@ -60,6 +68,10 @@ package = {
             },
         },
         windows = {
+            ["0.2.0"] = {
+                url    = "https://github.com/mcpplibs/os/archive/refs/tags/0.2.0.tar.gz",
+                sha256 = "9dc147ad8dca0216549c40dc4dfabaed7394cdf7a7f253c58613ccc226abd04e",
+            },
             ["0.1.2"] = {
                 url    = "https://github.com/mcpplibs/os/archive/refs/tags/0.1.2.tar.gz",
                 sha256 = "bf6f5cfb1518b045b693e246ee39306746074586434419d4052e648be111ea34",

tests/examples/os/mcpp.toml

@@ -1,12 +1,13 @@
 # mcpplibs.os test project: the library over this system's openkal
 # implementation, on every runner --- a program started and read, a file
-# published, a list of directories split, and the platform the build is for.
+# published, a list of directories split, the platform the build is for, and a
+# program's two outputs on one pipe.
 [package]
 name    = "os-tests"
 version = "0.1.0"
 
 [dependencies.mcpplibs]
-os = "0.1.2"
+os = "0.2.0"
 
 [indices]
 mcpplibs = { path = "../../.." }

tests/examples/os/tests/os.cpp

@@ -10,6 +10,11 @@ int main(int argc, char** argv) {
         (void)os::stdio::write_output("echoed");
         return 0;
     }
+    if (argc > 1 && std::string_view(argv[1]) == "--both") {
+        (void)os::stdio::write_output("out ");
+        (void)os::stdio::write_error("err");
+        return 0;
+    }
     int failures = 0;
     auto check = [&](bool ok, std::string_view what) { if (!ok) { ++failures; std::println(std::cerr, "FAIL: {}", what); } };
 
@@ -39,6 +44,20 @@ int main(int argc, char** argv) {
         o.args.push_back("--echo");
         auto r = os::process::run(o);
         check(r && r->status.success() && r->out == "echoed", "a started program's output is read");
+
+        // 0.2.0: one pipe carries the output and the error output in the order written.
+        o.args.back() = "--both";
+        o.out = os::process::stdio::pipe;
+        o.err = os::process::stdio::output;
+        std::string merged;
+        auto p = os::process::process::spawn(o);
+        if (p) {
+            for (;;) { auto c = p->read_output(); if (!c || c->empty()) break; merged += *c; }
+            auto st = p->wait();
+            check(st && st->success() && merged == "out err", "both outputs arrive on one pipe in order");
+        } else {
+            check(false, "a program with both outputs on one pipe starts");
+        }
     }
     // 0.1.2: a symbol of the program resolves as the loader resolves it.
     if (os::library::supported())