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fix(runtime-c-api) Fix imports, and check for null pointer.

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This commit is contained in:
Ivan Enderlin
2020-01-20 14:36:45 +01:00
parent 77ba77446d
commit 585f5615cf
2 changed files with 14 additions and 10 deletions
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18
lib/runtime-c-api/src/instance.rs
View File

@ -3,15 +3,14 @@
use crate::{ use crate::{
error::{update_last_error, CApiError}, error::{update_last_error, CApiError},
export::{wasmer_exports_t, wasmer_import_export_kind, NamedExport, NamedExports}, export::{wasmer_exports_t, wasmer_import_export_kind, NamedExport, NamedExports},
import::{wasmer_import_object_t, wasmer_import_t}, import::wasmer_import_t,
memory::wasmer_memory_t, memory::wasmer_memory_t,
module::wasmer_module_t,
value::{wasmer_value, wasmer_value_t, wasmer_value_tag}, value::{wasmer_value, wasmer_value_t, wasmer_value_tag},
wasmer_result_t, wasmer_result_t,
}; };
use libc::{c_char, c_int, c_void}; use libc::{c_char, c_int, c_void};
use std::{collections::HashMap, ffi::CStr, slice}; use std::{collections::HashMap, ffi::CStr, ptr, slice};
use wasmer_runtime::{Ctx, Global, Instance, Memory, Module, Table, Value}; use wasmer_runtime::{Ctx, Global, Instance, Memory, Table, Value};
use wasmer_runtime_core::{ use wasmer_runtime_core::{
export::Export, export::Export,
import::{ImportObject, Namespace}, import::{ImportObject, Namespace},
@ -187,14 +186,17 @@ pub unsafe extern "C" fn wasmer_instantiate(
/// It is often useful with `wasmer_instance_context_data_set()`. /// It is often useful with `wasmer_instance_context_data_set()`.
#[allow(clippy::cast_ptr_alignment)] #[allow(clippy::cast_ptr_alignment)]
#[no_mangle] #[no_mangle]
pub unsafe extern "C" fn wasmer_instance_context_get( pub extern "C" fn wasmer_instance_context_get(
instance: *mut wasmer_instance_t, instance: *mut wasmer_instance_t,
) -> *const wasmer_instance_context_t { ) -> *const wasmer_instance_context_t {
let instance_ref = &*(instance as *const Instance); if instance.is_null() {
return ptr::null() as _;
}
let ctx: *const Ctx = instance_ref.context() as *const _; let instance = unsafe { &*(instance as *const Instance) };
let context: *const Ctx = instance.context() as *const _;
ctx as *const wasmer_instance_context_t context as *const wasmer_instance_context_t
} }
/// Calls an instances exported function by `name` with the provided parameters. /// Calls an instances exported function by `name` with the provided parameters.

6
lib/runtime-c-api/src/module.rs
View File

@ -3,13 +3,15 @@
use crate::{ use crate::{
error::{update_last_error, CApiError}, error::{update_last_error, CApiError},
export::wasmer_import_export_kind, export::wasmer_import_export_kind,
import::wasmer_import_t, import::{wasmer_import_object_t, wasmer_import_t},
instance::wasmer_instance_t, instance::wasmer_instance_t,
wasmer_byte_array, wasmer_result_t, wasmer_byte_array, wasmer_result_t,
}; };
use libc::c_int; use libc::c_int;
use std::{collections::HashMap, slice}; use std::{collections::HashMap, slice};
use wasmer_runtime::{compile, default_compiler, Global, ImportObject, Memory, Module, Table}; use wasmer_runtime::{
compile, default_compiler, Global, ImportObject, Instance, Memory, Module, Table,
};
use wasmer_runtime_core::{cache::Artifact, export::Export, import::Namespace, load_cache_with}; use wasmer_runtime_core::{cache::Artifact, export::Export, import::Namespace, load_cache_with};
#[repr(C)] #[repr(C)]