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Add _localtimeand _time functions

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This commit is contained in:
Steve Akinyemi 2018-11-26 22:01:15 +01:00
parent 5911ac58c0
commit b1ba24e99d
1 changed files with 2 additions and 28 deletions
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30
src/apis/emscripten/env.rs
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@ -6,6 +6,7 @@ use std::os::raw::c_char;
use std::{slice, mem};
use crate::webassembly::Instance;
use super::utils::{copy_cstr_into_wasm, copy_terminated_array_of_cstrs};
/// emscripten: _getenv
pub extern "C" fn _getenv(name_ptr: c_int, instance: &mut Instance) -> c_int {
@ -22,33 +23,6 @@ pub extern "C" fn _getenv(name_ptr: c_int, instance: &mut Instance) -> c_int {
}
}
unsafe fn copy_cstr_into_wasm(instance: &mut Instance, cstr: *const c_char) -> u32 {
let s = CStr::from_ptr(cstr).to_str().unwrap();
let space_offset = (instance.emscripten_data.malloc)(s.len() as _, instance);
let raw_memory = instance.memory_offset_addr(0, space_offset as _) as *mut u8;
let mut slice = slice::from_raw_parts_mut(raw_memory, s.len());
for (byte, loc) in s.bytes().zip(slice.iter_mut()) {
*loc = byte;
}
space_offset
}
unsafe fn copy_terminated_array_of_cstrs(instance: &mut Instance, cstrs: *mut *mut c_char) -> u32 {
let total_num = {
let mut ptr = cstrs;
let mut counter = 0;
while !(*ptr).is_null() {
counter += 1;
ptr = ptr.add(1);
}
counter
};
println!("total_num: {}", total_num);
0
}
pub extern "C" fn _getpwnam(name_ptr: c_int, instance: &mut Instance) -> c_int {
#[repr(C)]
struct GuestPasswd {
@ -111,4 +85,4 @@ pub extern "C" fn _getgrnam(name_ptr: c_int, instance: &mut Instance) -> c_int {
group_struct_offset as c_int
}
}
}