bc77d7bdb0
Adding this back to the library as a stopgap measure to recover some benchmark performance. See #1527.
132 lines
2.9 KiB
Rust
132 lines
2.9 KiB
Rust
/*
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Module: sys
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Misc low level stuff
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*/
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tag type_desc = {
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first_param: **ctypes::c_int,
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size: ctypes::size_t,
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align: ctypes::size_t
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// Remaining fields not listed
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};
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#[abi = "cdecl"]
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native mod rustrt {
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// Explicitly re-export native stuff we want to be made
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// available outside this crate. Otherwise it's
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// visible-in-crate, but not re-exported.
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fn last_os_error() -> str;
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fn refcount<T>(t: @T) -> uint;
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fn do_gc();
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fn unsupervise();
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fn shape_log_str<T>(t: *sys::type_desc, data: T) -> str;
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fn rust_set_exit_status(code: int);
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fn set_min_stack(size: uint);
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}
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#[abi = "rust-intrinsic"]
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native mod rusti {
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fn get_type_desc<T>() -> *type_desc;
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}
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/*
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Function: get_type_desc
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Returns a pointer to a type descriptor. Useful for calling certain
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function in the Rust runtime or otherwise performing dark magick.
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*/
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fn get_type_desc<T>() -> *type_desc {
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ret rusti::get_type_desc::<T>();
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}
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/*
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Function: last_os_error
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Get a string representing the platform-dependent last error
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*/
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fn last_os_error() -> str {
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rustrt::last_os_error()
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}
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/*
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Function: size_of
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Returns the size of a type
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*/
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fn size_of<T>() -> uint unsafe {
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ret (*get_type_desc::<T>()).size;
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}
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/*
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Function: align_of
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Returns the alignment of a type
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*/
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fn align_of<T>() -> uint unsafe {
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ret (*get_type_desc::<T>()).align;
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}
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/*
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Function: refcount
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Returns the refcount of a shared box
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*/
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fn refcount<T>(t: @T) -> uint {
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ret rustrt::refcount::<T>(t);
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}
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/*
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Function: do_gc
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Force a garbage collection
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*/
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fn do_gc() -> () {
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ret rustrt::do_gc();
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}
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// FIXME: There's a wrapper for this in the task module and this really
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// just belongs there
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fn unsupervise() -> () {
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ret rustrt::unsupervise();
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}
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fn log_str<T>(t: T) -> str {
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rustrt::shape_log_str(get_type_desc::<T>(), t)
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}
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#[doc(
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brief = "Sets the process exit code",
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desc = "Sets the exit code returned by the process if all supervised \
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tasks terminate successfully (without failing). If the current \
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root task fails and is supervised by the scheduler then any \
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user-specified exit status is ignored and the process exits \
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with the default failure status."
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)]
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fn set_exit_status(code: int) {
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rustrt::rust_set_exit_status(code);
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}
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// FIXME: #1495 - This shouldn't exist
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#[doc(
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brief =
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"Globally set the minimum size, in bytes, of a stack segment",
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desc =
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"Rust tasks have segmented stacks that are connected in a linked list \
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allowing them to start very small and grow very large. In some \
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situations this can result in poor performance. Calling this function \
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will set the minimum size of all stack segments allocated in the \
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future, for all tasks."
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)]
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#[deprecated]
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fn set_min_stack(size: uint) {
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rustrt::set_min_stack(size);
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}
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// Local Variables:
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// mode: rust;
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// fill-column: 78;
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// indent-tabs-mode: nil
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// c-basic-offset: 4
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// buffer-file-coding-system: utf-8-unix
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// End:
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