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Some tests have been disabled and will need further review.
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A little easier to read
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The libc_bitflags! macro was replaced with a non-recursive one supporting
only public structs. I could not figure out how to make the old macro work
with the upgrade, so I reworked part of the bitflags! macro directly to suit
our needs, much as the original recursive macro was made. There are no uses
of this macro for non-public structs, so this is not a problem for internal code.
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These are assumed to be QEMU issues, as they also fail on mips.
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It isn't necessary, and can cause deadlocks in Rust's test harness
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They have four problems:
* The chdir tests change the process's cwd, which is global. Protect them
all with a mutex.
* The wait tests will reap any subprocess, and several tests create
subprocesses. Protect them all with a mutex so only one
subprocess-creating test will run at a time.
* When a multithreaded test forks, the child process can sometimes block in
the stack unwinding code. It blocks on a mutex that was held by a
different thread in the parent, but that thread doesn't exist in the
child, so a deadlock results. Fix this by immediately calling
std::process:exit in the child processes.
* My previous attempt at thread safety in the aio tests didn't work, because
anonymous MutexGuards drop immediately. Fix this by naming the
SIGUSR2_MTX MutexGuards.
Fixes #251
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This commit changes the name of the enum returned by `fork()` to
`ForkResult`, and changes the `Parent` variant to be struct-like.
The result can be matched like
use nix::unistd::ForkResult::*;
match fork().unwrap() {
Parent { child } => { ... }
Child => { ... }
}
using the shorthand matching syntax for struct-like enum variants.
This is a breaking change.
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