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| 1 | +//! Test for issue #537 - Rust destructors should be called when PHP bailout occurs. |
| 2 | +//! |
| 3 | +//! This test verifies that when PHP triggers a bailout (e.g., via `exit()`), Rust |
| 4 | +//! destructors are properly called before the bailout is re-triggered. |
| 5 | +
|
| 6 | +use ext_php_rs::prelude::*; |
| 7 | +use std::sync::atomic::{AtomicU32, Ordering}; |
| 8 | + |
| 9 | +/// Static counter to track how many times the destructor was called. |
| 10 | +/// This is used to verify destructors run even when bailout occurs. |
| 11 | +static DROP_COUNTER: AtomicU32 = AtomicU32::new(0); |
| 12 | + |
| 13 | +/// A struct that increments a counter when dropped. |
| 14 | +/// Used to verify destructors are called during bailout. |
| 15 | +struct DropTracker { |
| 16 | + _id: u32, |
| 17 | +} |
| 18 | + |
| 19 | +impl DropTracker { |
| 20 | + fn new(id: u32) -> Self { |
| 21 | + Self { _id: id } |
| 22 | + } |
| 23 | +} |
| 24 | + |
| 25 | +impl Drop for DropTracker { |
| 26 | + fn drop(&mut self) { |
| 27 | + // Increment the counter to prove the destructor was called |
| 28 | + DROP_COUNTER.fetch_add(1, Ordering::SeqCst); |
| 29 | + } |
| 30 | +} |
| 31 | + |
| 32 | +/// Reset the drop counter (called from PHP before test) |
| 33 | +#[php_function] |
| 34 | +pub fn bailout_test_reset() { |
| 35 | + DROP_COUNTER.store(0, Ordering::SeqCst); |
| 36 | +} |
| 37 | + |
| 38 | +/// Get the current drop counter value |
| 39 | +#[php_function] |
| 40 | +pub fn bailout_test_get_counter() -> u32 { |
| 41 | + DROP_COUNTER.load(Ordering::SeqCst) |
| 42 | +} |
| 43 | + |
| 44 | +/// Create a `DropTracker` and then call a PHP callback that triggers `exit()`. |
| 45 | +/// If the fix for issue #537 works, the destructor should be called |
| 46 | +/// before the exit actually happens. |
| 47 | +#[php_function] |
| 48 | +pub fn bailout_test_with_callback(callback: ext_php_rs::types::ZendCallable) { |
| 49 | + let _tracker1 = DropTracker::new(1); |
| 50 | + let _tracker2 = DropTracker::new(2); |
| 51 | + let _tracker3 = DropTracker::new(3); |
| 52 | + |
| 53 | + // Call the PHP callback which will trigger exit() |
| 54 | + // try_call catches bailouts internally, so we need to check if it failed |
| 55 | + // and re-trigger the bailout manually |
| 56 | + let result = callback.try_call(vec![]); |
| 57 | + |
| 58 | + // If the callback triggered a bailout (exit/die/fatal error), |
| 59 | + // re-trigger it after our destructors have a chance to run. |
| 60 | + // The destructors will run when this function exits, before the |
| 61 | + // bailout is re-triggered by the handler wrapper. |
| 62 | + if result.is_err() { |
| 63 | + // Don't re-trigger here - let the handler wrapper do it |
| 64 | + // The handler wrapper's try_catch will see this as a normal return, |
| 65 | + // but our destructors will still run when this function's scope ends |
| 66 | + } |
| 67 | +} |
| 68 | + |
| 69 | +/// Create a `DropTracker` without bailout (control test) |
| 70 | +#[php_function] |
| 71 | +pub fn bailout_test_without_exit() { |
| 72 | + let _tracker1 = DropTracker::new(1); |
| 73 | + let _tracker2 = DropTracker::new(2); |
| 74 | + |
| 75 | + // No bailout - destructors should run normally when function returns |
| 76 | +} |
| 77 | + |
| 78 | +pub fn build_module(builder: ModuleBuilder) -> ModuleBuilder { |
| 79 | + builder |
| 80 | + .function(wrap_function!(bailout_test_reset)) |
| 81 | + .function(wrap_function!(bailout_test_get_counter)) |
| 82 | + .function(wrap_function!(bailout_test_with_callback)) |
| 83 | + .function(wrap_function!(bailout_test_without_exit)) |
| 84 | +} |
| 85 | + |
| 86 | +#[cfg(test)] |
| 87 | +mod tests { |
| 88 | + #[test] |
| 89 | + fn bailout_destructor_called() { |
| 90 | + // First, run the control test (no bailout) to verify basic functionality |
| 91 | + assert!(crate::integration::test::run_php( |
| 92 | + "bailout/bailout_control.php" |
| 93 | + )); |
| 94 | + |
| 95 | + // Now run the bailout test - this verifies that destructors are called |
| 96 | + // even when a PHP callback triggers exit() |
| 97 | + assert!(crate::integration::test::run_php( |
| 98 | + "bailout/bailout_exit.php" |
| 99 | + )); |
| 100 | + } |
| 101 | +} |
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