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Added _clock_gettime emscripten implementation

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This commit is contained in:
Syrus Akbary 2018-11-26 12:28:20 -08:00
parent cb7c7fd475
commit 5911ac58c0
2 changed files with 38 additions and 1 deletions
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7
src/apis/emscripten/mod.rs
View File

@ -290,6 +290,11 @@ pub fn generate_emscripten_env<'a, 'b>() -> ImportObject<&'a str, &'b str> {
"_gettimeofday",
ImportValue::Func(time::_gettimeofday as _),
);
import_object.set(
"env",
"_clock_gettime",
ImportValue::Func(time::_clock_gettime as _),
);
mock_external!(import_object, _waitpid);
mock_external!(import_object, _utimes);
mock_external!(import_object, _usleep);
@ -324,7 +329,7 @@ pub fn generate_emscripten_env<'a, 'b>() -> ImportObject<&'a str, &'b str> {
mock_external!(import_object, _exit);
mock_external!(import_object, _execve);
mock_external!(import_object, _endgrent);
mock_external!(import_object, _clock_gettime);
// mock_external!(import_object, _clock_gettime);
mock_external!(import_object, ___syscall97);
mock_external!(import_object, ___syscall91);
mock_external!(import_object, ___syscall85);

32
src/apis/emscripten/time.rs Normal file
View File

@ -0,0 +1,32 @@
use libc::{gettimeofday, timeval, c_int, clock_gettime, clockid_t, timespec};
use std::ptr;
use crate::webassembly::Instance;
/// emscripten: _gettimeofday
pub extern "C" fn _gettimeofday(timeval_ptr_offset: c_int, tz_offset: c_int, instance: &mut Instance) -> c_int {
debug!("emscripten::_gettimeofday {}", timeval_ptr_offset);
unsafe {
let mut timeval_value = *(instance.memory_offset_addr(0, timeval_ptr_offset as _) as *mut timeval);
// We skip the timezone for now
let mut tz = ptr::null_mut();
debug!("emscripten::_gettimeofday(initial) {} {}", (timeval_value).tv_sec, (timeval_value).tv_usec);
let returned = gettimeofday(&mut timeval_value, tz);
debug!("emscripten::_gettimeofday(filled) {} {}", (timeval_value).tv_sec, (timeval_value).tv_usec);
returned
}
}
/// emscripten: _clock_gettime
pub extern "C" fn _clock_gettime(clk_id: clockid_t, tp_offset: c_int, instance: &mut Instance) -> c_int {
debug!("emscripten::_clock_gettime {} {}", clk_id, tp_offset);
unsafe {
let mut tp = instance.memory_offset_addr(0, tp_offset as _) as *mut timespec;
let returned = clock_gettime(clk_id, tp);
debug!("emscripten::clock_gettime(filled) {} {}", (*tp).tv_sec, (*tp).tv_nsec);
returned
}
}