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Commit 5768ce2

Browse files
start of a logging implementation
1 parent 08a6c77 commit 5768ce2

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3 files changed

+92
-7
lines changed

3 files changed

+92
-7
lines changed

‎pirt/Cargo.toml‎

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@@ -4,5 +4,8 @@ version = "0.1.0"
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edition = "2021"
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# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
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[lib]
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crate-type = ["cdylib"]
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[dependencies]
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log = "0.4"

‎pirt/src/lib.rs‎

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@@ -1,8 +1,28 @@
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#[cfg(test)]
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mod tests {
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#[test]
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fn it_works() {
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let result = 2 + 2;
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assert_eq!(result, 4);
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}
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mod logging;
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use std::fs;
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use std::io::Result;
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use std::sync::Once;
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use log;
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use log::LevelFilter;
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static LOGGING_SETUP: Once = Once::new();
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/*
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fn index_ship() -> Result<()> {
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let dir = fs::read_dir("C:\\kptnhook\\ship")?
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Ok(())
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} */
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fn logging_setup() {
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}
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#[no_mangle]
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extern "system" fn DllMain(_: *const u8, _: u32, _: *const u8) -> u32 {
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// load the other pirts from the ship
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LOGGING_SETUP.call_once(logging_setup);
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1
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}

‎pirt/src/logging.rs‎

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@@ -0,0 +1,62 @@
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use std::os::windows::ffi::OsStrExt;
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use std::ffi::OsStr;
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use std::sync::{ Arc, Mutex };
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use std::process;
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use std::env;
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use log::{ Log, Level, LevelFilter };
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#[cfg(windows)]
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extern "stdcall" {
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fn OutputDebugStringW(chars: *const u16);
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}
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pub fn output_debug_string(msg: impl AsRef<OsStr>) {
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let msg_wide = msg
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.as_ref()
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.encode_wide()
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.chain(Some(0)) // null terminator
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.collect::<Vec<_>>();
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unsafe { OutputDebugStringW(msg_wide.as_ptr()); }
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}
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static EARLY_LOGGER: EarlyLogger = EarlyLogger {};
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static LOGGER: PirtLogger = PirtLogger {};
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fn init() {
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log::set_logger(&EarlyLogger);
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}
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struct PirtLogger;
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struct EarlyLogger;
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impl Log for PirtLogger {
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fn enabled(&self, metadata: &log::Metadata) -> bool {
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todo!()
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}
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fn log(&self, record: &log::Record) {
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todo!()
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}
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fn flush(&self) {
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todo!()
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}
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}
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impl Log for EarlyLogger {
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fn flush(&self) { }
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fn enabled(&self, _: &log::Metadata) -> bool { true }
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fn log(&self, record: &log::Record) {
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let procname = match env::current_exe() {
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Ok(p) => p.file_name()
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.map(|f| f.to_string_lossy().into_owned())
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.unwrap_or("{no filename}".to_string()),
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Err(c) => format!("{{filename err {}}}", c)
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};
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output_debug_string(
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format!("kptnhook<{}@{}> {}: {}", procname, process::id(), record.args(), record.level()));
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}
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}

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