118 lines
2.9 KiB
Rust
118 lines
2.9 KiB
Rust
use std::path::Path;
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use shared_memory::ShmemConf;
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#[test]
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fn create_new() {
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let mut s = ShmemConf::new().size(4090).create().unwrap();
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assert!(s.is_owner());
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assert!(!s.get_os_id().is_empty());
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assert!(s.len() >= 4090);
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assert!(!s.as_ptr().is_null());
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unsafe {
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assert_eq!(s.as_slice().len(), s.len());
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assert_eq!(s.as_slice_mut().len(), s.len());
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}
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}
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#[test]
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fn create_with_flink() {
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let flink = Path::new("create_new1");
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let mut s = ShmemConf::new().flink(flink).size(4090).create().unwrap();
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assert!(s.is_owner());
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assert!(!s.get_os_id().is_empty());
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assert!(flink.is_file());
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assert!(s.len() >= 4090);
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assert!(!s.as_ptr().is_null());
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unsafe {
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assert_eq!(s.as_slice().len(), s.len());
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assert_eq!(s.as_slice_mut().len(), s.len());
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}
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drop(s);
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assert!(!flink.is_file());
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}
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#[test]
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fn open_os_id() {
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let s1 = ShmemConf::new().size(4090).create().unwrap();
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// Open with the unique os id
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let os_id = s1.get_os_id().to_string();
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let mut s2 = ShmemConf::new().os_id(&os_id).open().unwrap();
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assert!(!s2.is_owner());
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assert!(!s2.get_os_id().is_empty());
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assert!(s2.len() >= 4090);
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assert!(!s2.as_ptr().is_null());
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unsafe {
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assert_eq!(s2.as_slice().len(), s2.len());
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assert_eq!(s2.as_slice_mut().len(), s2.len());
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}
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// Drop the owner of the mapping
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drop(s1);
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// Make sure it can be openned again
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assert!(ShmemConf::new().os_id(&os_id).open().is_err());
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drop(s2);
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}
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#[test]
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fn open_flink() {
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let flink = Path::new("create_new2");
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let s1 = ShmemConf::new().flink(flink).size(4090).create().unwrap();
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// Open with file base link
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let mut s2 = ShmemConf::new().flink(&flink).open().unwrap();
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assert!(!s2.is_owner());
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assert!(!s2.get_os_id().is_empty());
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assert!(flink.is_file());
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assert!(s2.len() >= 4090);
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assert!(!s2.as_ptr().is_null());
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unsafe {
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assert_eq!(s2.as_slice().len(), s2.len());
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assert_eq!(s2.as_slice_mut().len(), s2.len());
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}
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// Drop the owner of the mapping
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drop(s1);
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// Make sure it can be openned again
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assert!(ShmemConf::new().flink(&flink).open().is_err());
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drop(s2);
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}
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#[test]
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fn share_data() {
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let s1 = ShmemConf::new()
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.size(core::mem::size_of::<u32>())
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.create()
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.unwrap();
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// Open with the unique os id
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let os_id = s1.get_os_id().to_string();
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let s2 = ShmemConf::new().os_id(&os_id).open().unwrap();
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let ptr1 = s1.as_ptr() as *mut u32;
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let ptr2 = s2.as_ptr() as *mut u32;
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// Confirm that the two pointers are different
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assert_ne!(ptr1, ptr2);
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// Write a value from s1 and read it from s2
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unsafe {
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let shared_val = 0xBADC0FEE;
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ptr1.write_volatile(shared_val);
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let read_val = ptr2.read_volatile();
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assert_eq!(read_val, shared_val);
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}
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}
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