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authorDeterminant <[email protected]>2020-06-10 02:09:22 -0400
committerDeterminant <[email protected]>2020-06-10 02:09:22 -0400
commit811146c489ddd1494ff083609c10daed0c2c5023 (patch)
tree8ddfa75ab3c0fd9b87179896987a1232ab269f08 /examples
parent895c761cc46f48907dc8442297f84c8959692b49 (diff)
get `peel()` working
Diffstat (limited to 'examples')
-rw-r--r--examples/demo1.rs38
1 files changed, 30 insertions, 8 deletions
diff --git a/examples/demo1.rs b/examples/demo1.rs
index d1d488c..4c4f955 100644
--- a/examples/demo1.rs
+++ b/examples/demo1.rs
@@ -2,9 +2,10 @@ use std::os::unix::io::RawFd;
use nix::unistd::{close, mkdir, unlinkat, UnlinkatFlags, ftruncate};
use nix::fcntl::{open, openat, OFlag, fallocate, FallocateFlags};
use nix::sys::{stat::Mode, uio::{pwrite, pread}};
+use rand::{Rng, seq::SliceRandom};
use libc::off_t;
-use growthring::{WALFile, WALStore, WALPos, WALBytes, WALLoader, WALWriter};
+use growthring::{WALFile, WALStore, WALPos, WALBytes, WALLoader, WALWriter, WALRingId};
struct WALFileTest {
filename: String,
@@ -92,9 +93,9 @@ impl WALStore for WALStoreTest {
Some(Box::new(WALFileTest::new(self.rootfd, &filename)))
}
- fn remove_file(&self, filename: &str) -> bool {
+ fn remove_file(&self, filename: &str) -> Result<(), ()> {
println!("remove_file(filename={})", filename);
- unlinkat(Some(self.rootfd), filename, UnlinkatFlags::NoRemoveDir).is_ok()
+ unlinkat(Some(self.rootfd), filename, UnlinkatFlags::NoRemoveDir).or_else(|_| Err(()))
}
fn enumerate_files(&self) -> Box<[String]> {
@@ -111,28 +112,49 @@ impl WALStore for WALStoreTest {
}
}
-fn test(records: Vec<String>, wal: &mut WALWriter<WALStoreTest>) {
+fn test(records: Vec<String>, wal: &mut WALWriter<WALStoreTest>) -> Box<[WALRingId]> {
let records: Vec<WALBytes> = records.into_iter().map(|s| s.into_bytes().into_boxed_slice()).collect();
let ret = wal.grow(&records);
for ring_id in ret.iter() {
println!("got ring id: {:?}", ring_id);
}
+ ret
}
fn main() {
+ let mut rng = rand::thread_rng();
let store = WALStoreTest::new("./wal_demo1", true);
let mut wal = WALLoader::new(store, 9, 8, 1000).recover();
for _ in 0..3 {
- test(["hi", "hello", "lol"].iter().map(|s| s.to_string()).collect::<Vec<String>>(), &mut wal)
+ test(["hi", "hello", "lol"].iter().map(|s| s.to_string()).collect::<Vec<String>>(), &mut wal);
}
for _ in 0..3 {
- test(["a".repeat(10), "b".repeat(100), "c".repeat(1000)].iter().map(|s| s.to_string()).collect::<Vec<String>>(), &mut wal)
+ test(vec!["a".repeat(10), "b".repeat(100), "c".repeat(1000)], &mut wal);
}
+
let store = WALStoreTest::new("./wal_demo1", false);
let mut wal = WALLoader::new(store, 9, 8, 1000).recover();
for _ in 0..3 {
- test(["a".repeat(10), "b".repeat(100), "c".repeat(300), "d".repeat(400)].iter().map(|s| s.to_string()).collect::<Vec<String>>(), &mut wal)
+ test(vec!["a".repeat(10), "b".repeat(100), "c".repeat(300), "d".repeat(400)], &mut wal);
}
+
let store = WALStoreTest::new("./wal_demo1", false);
- let wal = WALLoader::new(store, 9, 8, 1000).recover();
+ let mut wal = WALLoader::new(store, 9, 8, 1000).recover();
+ for _ in 0..3 {
+ let mut ids = Vec::new();
+ for _ in 0..3 {
+ let mut records = Vec::new();
+ for _ in 0..100 {
+ records.push("a".repeat(rng.gen_range(1, 10)))
+ }
+ for id in test(records, &mut wal).iter() {
+ ids.push(*id)
+ }
+ }
+ ids.shuffle(&mut rng);
+ for e in ids.chunks(20) {
+ println!("peel(20)");
+ wal.peel(e);
+ }
+ }
}