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Improve error handling in coroutines.

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This commit is contained in:
James Roseborough
2010-04-19 16:11:55 +00:00
parent fdea0828fc
commit 4f3cd304a1
1 changed files with 12 additions and 2 deletions
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14
src/core/org/luaj/vm2/LuaThread.java
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@@ -36,6 +36,7 @@ public class LuaThread extends LuaValue implements Runnable {
private static final int STATUS_RUNNING = 1;
private static final int STATUS_NORMAL = 2;
private static final int STATUS_DEAD = 3;
private static final int STATUS_ERROR = 4;
private static final String[] STATUS_NAMES = {
"suspended",
"running",
@@ -158,8 +159,12 @@ public class LuaThread extends LuaValue implements Runnable {
synchronized ( this ) {
try {
this.args = func.invoke(this.args);
} finally {
status = STATUS_DEAD;
} catch ( Throwable t ) {
String msg = t.getMessage();
this.args = valueOf(msg!=null? msg: t.toString());
status = STATUS_ERROR;
} finally {
this.notify();
}
}
@@ -214,7 +219,12 @@ public class LuaThread extends LuaValue implements Runnable {
this.wait();
// copy return values from yielding stack state
return varargsOf(LuaValue.TRUE, this.args);
if ( status == STATUS_ERROR ) {
status = STATUS_DEAD;
return varargsOf(FALSE, this.args);
} else {
return varargsOf(TRUE, this.args);
}
} catch ( Throwable t ) {
status = STATUS_DEAD;