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bootstrap: pass correct struct size to winapi #127270

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merged 1 commit into from
Jul 3, 2024
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bootstrap: pass correct struct size to winapi #127270

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17 changes: 5 additions & 12 deletions src/bootstrap/src/bin/rustc.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -317,9 +317,7 @@ fn format_rusage_data(child: Child) -> Option<String> {

use windows::{
Win32::Foundation::HANDLE,
Win32::System::ProcessStatus::{
K32GetProcessMemoryInfo, PROCESS_MEMORY_COUNTERS, PROCESS_MEMORY_COUNTERS_EX,
},
Win32::System::ProcessStatus::{K32GetProcessMemoryInfo, PROCESS_MEMORY_COUNTERS},
Win32::System::Threading::GetProcessTimes,
Win32::System::Time::FileTimeToSystemTime,
};
Expand All @@ -331,6 +329,7 @@ fn format_rusage_data(child: Child) -> Option<String> {
let mut kernel_filetime = Default::default();
let mut kernel_time = Default::default();
let mut memory_counters = PROCESS_MEMORY_COUNTERS::default();
let memory_counters_size = std::mem::size_of_val(&memory_counters);

unsafe {
GetProcessTimes(
Expand All @@ -347,15 +346,9 @@ fn format_rusage_data(child: Child) -> Option<String> {

// Unlike on Linux with RUSAGE_CHILDREN, this will only return memory information for the process
// with the given handle and none of that process's children.
unsafe {
K32GetProcessMemoryInfo(
handle,
&mut memory_counters,
std::mem::size_of::<PROCESS_MEMORY_COUNTERS_EX>() as u32,
)
}
.ok()
.ok()?;
unsafe { K32GetProcessMemoryInfo(handle, &mut memory_counters, memory_counters_size as u32) }
.ok()
.ok()?;

// Guide on interpreting these numbers:
// https://docs.microsoft.com/en-us/windows/win32/psapi/process-memory-usage-information
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