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Make thread utilities unsafe

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This commit is contained in:
Yota Toyama
2019-04-15 15:30:14 +00:00
parent 1acd4e325e
commit 8f96257594
8 changed files with 16 additions and 16 deletions
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2
Cargo.lock generated
View File

@@ -2,7 +2,7 @@
# It is not intended for manual editing.
[[package]]
name = "bdwgc-alloc"
version = "0.1.1"
version = "0.2.0"
dependencies = [
"libc 0.2.51 (registry+https://github.com/rust-lang/crates.io-index)",
]

2
Cargo.toml
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@@ -1,7 +1,7 @@
[package]
name = "bdwgc-alloc"
description = "impl GlobalAlloc for bdwgc"
version = "0.1.1"
version = "0.2.0"
authors = ["swgillespie <sean.william.g@gmail.com>", "Yota Toyama <raviqqe@gmail.com>"]
repository = "https://github.com/raviqqe/bdwgc-rs"
edition = "2018"

4
examples/allocation_loop/Cargo.lock generated
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@@ -4,12 +4,12 @@
name = "allocation_loop"
version = "0.1.0"
dependencies = [
"bdwgc-alloc 0.1.1",
"bdwgc-alloc 0.2.0",
]
[[package]]
name = "bdwgc-alloc"
version = "0.1.1"
version = "0.2.0"
dependencies = [
"libc 0.2.51 (registry+https://github.com/rust-lang/crates.io-index)",
]

4
examples/dynamic_threads/Cargo.lock generated
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@@ -2,7 +2,7 @@
# It is not intended for manual editing.
[[package]]
name = "bdwgc-alloc"
version = "0.1.1"
version = "0.2.0"
dependencies = [
"libc 0.2.51 (registry+https://github.com/rust-lang/crates.io-index)",
]
@@ -11,7 +11,7 @@ dependencies = [
name = "dynamic_threads"
version = "0.1.0"
dependencies = [
"bdwgc-alloc 0.1.1",
"bdwgc-alloc 0.2.0",
]
[[package]]

4
examples/dynamic_threads/src/main.rs
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@@ -11,7 +11,7 @@ fn main() {
loop {
let handle = std::thread::spawn(move || {
Allocator::register_current_thread().unwrap();
unsafe { Allocator::register_current_thread().unwrap() }
let mut _n =
unsafe { GLOBAL_ALLOCATOR.alloc(Layout::from_size_align(2 ^ 8, 8).unwrap()) };
@@ -20,7 +20,7 @@ fn main() {
_n = unsafe { GLOBAL_ALLOCATOR.alloc(Layout::from_size_align(2 ^ 8, 8).unwrap()) }
}
Allocator::unregister_current_thread();
unsafe { Allocator::unregister_current_thread() }
});
handle.join().unwrap();

4
examples/static_threads/Cargo.lock generated
View File

@@ -2,7 +2,7 @@
# It is not intended for manual editing.
[[package]]
name = "bdwgc-alloc"
version = "0.1.1"
version = "0.2.0"
dependencies = [
"libc 0.2.51 (registry+https://github.com/rust-lang/crates.io-index)",
]
@@ -16,7 +16,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
name = "static_threads"
version = "0.1.0"
dependencies = [
"bdwgc-alloc 0.1.1",
"bdwgc-alloc 0.2.0",
]
[metadata]

2
examples/static_threads/src/main.rs
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@@ -10,7 +10,7 @@ fn main() {
unsafe { Allocator::initialize() }
let handle = std::thread::spawn(move || {
Allocator::register_current_thread().unwrap();
unsafe { Allocator::register_current_thread().unwrap() }
let mut _n = unsafe { GLOBAL_ALLOCATOR.alloc(Layout::from_size_align(2 ^ 8, 8).unwrap()) };

10
src/lib.rs
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@@ -32,23 +32,23 @@ impl Allocator {
GC_allow_register_threads();
}
pub fn register_current_thread() -> Result<(), error::Error> {
pub unsafe fn register_current_thread() -> Result<(), error::Error> {
let mut base = GcStackBase {
mem_base: std::ptr::null(),
reg_base: std::ptr::null(),
};
if unsafe { GC_get_stack_base(&mut base) } != GC_SUCCESS {
if GC_get_stack_base(&mut base) != GC_SUCCESS {
return Err(error::Error::new("failed to get stack base"));
} else if unsafe { GC_register_my_thread(&base) } != GC_SUCCESS {
} else if GC_register_my_thread(&base) != GC_SUCCESS {
return Err(error::Error::new("failed to register a thread for GC"));
}
Ok(())
}
pub fn unregister_current_thread() {
unsafe { GC_unregister_my_thread() }
pub unsafe fn unregister_current_thread() {
GC_unregister_my_thread()
}
}