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std.process.Child: fix failing test

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Vojtech Antosik 2024-08-01 03:36:53 +02:00
parent 7f9bb47430
commit bb8776dd69
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1 changed files with 19 additions and 11 deletions
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30
test/standalone/detached_child/main.zig
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@ -21,24 +21,32 @@ pub fn main() !void {
_ = child.kill() catch {};
}
// Give the process some time to actually start doing something before
// checking if it properly detached.
var read_buffer: [1]u8 = undefined;
if (try child.stdout.?.read(&read_buffer) != 1) {
return error.OutputReadFailed;
}
switch (builtin.os.tag) {
.windows => {
const windows = std.os.windows;
const child_pid = try windows.GetProcessId(child.id);
// Give the process some time to actually start doing something.
// If we check the process list immediately, we might be done before
// the new process attaches to the console.
var read_buffer: [1]u8 = undefined;
try std.testing.expectEqual(1, try child.stdout.?.read(&read_buffer));
var proc_buffer: []windows.DWORD = undefined;
var proc_count: windows.DWORD = 16;
while (true) {
proc_buffer = try gpa.alloc(windows.DWORD, proc_count);
defer gpa.free(proc_buffer);
var proc_buffer: [16]windows.DWORD = undefined;
const proc_count = try windows.GetConsoleProcessList(&proc_buffer);
if (proc_count > 16) @panic("process buffer is too small");
proc_count = try windows.GetConsoleProcessList(proc_buffer);
if (proc_count == 0) return error.ConsoleProcessListFailed;
for (proc_buffer[0..proc_count]) |proc| {
if (proc == child_pid) {
return error.ProcessAttachedToConsole;
if (proc_count <= proc_buffer.len) {
for (proc_buffer[0..proc_count]) |proc| {
if (proc == child_pid) return error.ProcessAttachedToConsole;
}
break;
}
}
},