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feat(runtime-c-api) Extract the global module.

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This commit is contained in:
Ivan Enderlin 2019-03-29 15:05:17 +01:00
parent 8bdb458ea7
commit d06d6b7ac8
2 changed files with 72 additions and 66 deletions
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70
lib/runtime-c-api/src/global.rs Normal file
View File

@ -0,0 +1,70 @@
//! Wasm global.
use crate::value::{wasmer_value_t, wasmer_value_tag};
use wasmer_runtime::Global;
#[repr(C)]
#[derive(Clone)]
pub struct wasmer_global_descriptor_t {
mutable: bool,
kind: wasmer_value_tag,
}
#[repr(C)]
#[derive(Clone)]
pub struct wasmer_global_t;
/// Creates a new Global and returns a pointer to it.
/// The caller owns the object and should call `wasmer_global_destroy` to free it.
#[no_mangle]
pub unsafe extern "C" fn wasmer_global_new(
value: wasmer_value_t,
mutable: bool,
) -> *mut wasmer_global_t {
let global = if mutable {
Global::new_mutable(value.into())
} else {
Global::new(value.into())
};
Box::into_raw(Box::new(global)) as *mut wasmer_global_t
}
/// Gets the value stored by the given Global
#[allow(clippy::cast_ptr_alignment)]
#[no_mangle]
pub extern "C" fn wasmer_global_get(global: *mut wasmer_global_t) -> wasmer_value_t {
let global = unsafe { &*(global as *mut Global) };
let value: wasmer_value_t = global.get().into();
value
}
/// Sets the value stored by the given Global
#[allow(clippy::cast_ptr_alignment)]
#[no_mangle]
pub extern "C" fn wasmer_global_set(global: *mut wasmer_global_t, value: wasmer_value_t) {
let global = unsafe { &*(global as *mut Global) };
global.set(value.into());
}
/// Returns a descriptor (type, mutability) of the given Global
#[allow(clippy::cast_ptr_alignment)]
#[no_mangle]
pub extern "C" fn wasmer_global_get_descriptor(
global: *mut wasmer_global_t,
) -> wasmer_global_descriptor_t {
let global = unsafe { &*(global as *mut Global) };
let descriptor = global.descriptor();
wasmer_global_descriptor_t {
mutable: descriptor.mutable,
kind: descriptor.ty.into(),
}
}
/// Frees memory for the given Global
#[allow(clippy::cast_ptr_alignment)]
#[no_mangle]
pub extern "C" fn wasmer_global_destroy(global: *mut wasmer_global_t) {
if !global.is_null() {
unsafe { Box::from_raw(global as *mut Global) };
}
}

68
lib/runtime-c-api/src/lib.rs
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@ -14,12 +14,14 @@ use wasmer_runtime_core::module::{ExportIndex, ImportName};
use wasmer_runtime_core::types::{FuncSig, Type};
pub mod error;
pub mod global;
pub mod memory;
pub mod module;
pub mod table;
pub mod value;
use error::{update_last_error, CApiError};
use global::wasmer_global_t;
use memory::wasmer_memory_t;
use module::wasmer_module_t;
use table::wasmer_table_t;
@ -38,13 +40,6 @@ pub enum wasmer_result_t {
WASMER_ERROR = 2,
}
#[repr(C)]
#[derive(Clone)]
pub struct wasmer_global_descriptor_t {
mutable: bool,
kind: wasmer_value_tag,
}
#[repr(C)]
#[derive(Clone)]
pub struct wasmer_import_func_t;
@ -53,10 +48,6 @@ pub struct wasmer_import_func_t;
#[derive(Clone)]
pub struct wasmer_export_func_t;
#[repr(C)]
#[derive(Clone)]
pub struct wasmer_global_t;
#[repr(C)]
pub struct wasmer_limits_t {
pub min: uint32_t,
@ -126,61 +117,6 @@ pub struct wasmer_byte_array {
bytes_len: uint32_t,
}
/// Creates a new Global and returns a pointer to it.
/// The caller owns the object and should call `wasmer_global_destroy` to free it.
#[no_mangle]
pub unsafe extern "C" fn wasmer_global_new(
value: wasmer_value_t,
mutable: bool,
) -> *mut wasmer_global_t {
let global = if mutable {
Global::new_mutable(value.into())
} else {
Global::new(value.into())
};
Box::into_raw(Box::new(global)) as *mut wasmer_global_t
}
/// Gets the value stored by the given Global
#[allow(clippy::cast_ptr_alignment)]
#[no_mangle]
pub extern "C" fn wasmer_global_get(global: *mut wasmer_global_t) -> wasmer_value_t {
let global = unsafe { &*(global as *mut Global) };
let value: wasmer_value_t = global.get().into();
value
}
/// Sets the value stored by the given Global
#[allow(clippy::cast_ptr_alignment)]
#[no_mangle]
pub extern "C" fn wasmer_global_set(global: *mut wasmer_global_t, value: wasmer_value_t) {
let global = unsafe { &*(global as *mut Global) };
global.set(value.into());
}
/// Returns a descriptor (type, mutability) of the given Global
#[allow(clippy::cast_ptr_alignment)]
#[no_mangle]
pub extern "C" fn wasmer_global_get_descriptor(
global: *mut wasmer_global_t,
) -> wasmer_global_descriptor_t {
let global = unsafe { &*(global as *mut Global) };
let descriptor = global.descriptor();
wasmer_global_descriptor_t {
mutable: descriptor.mutable,
kind: descriptor.ty.into(),
}
}
/// Frees memory for the given Global
#[allow(clippy::cast_ptr_alignment)]
#[no_mangle]
pub extern "C" fn wasmer_global_destroy(global: *mut wasmer_global_t) {
if !global.is_null() {
unsafe { Box::from_raw(global as *mut Global) };
}
}
/// Gets export descriptors for the given module
///
/// The caller owns the object and should call `wasmer_export_descriptors_destroy` to free it.