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rt: Refactor task failure to go through rust_task_fail

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This is the place to but a breakpoint. We will raise SIGINT here
to break into the debugger.
This commit is contained in:
Brian Anderson
2012-05-31 23:25:13 -07:00
parent e47962f6a9
commit 4c8bc19ad2
3 changed files with 45 additions and 3 deletions
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29
src/rt/rust_task.cpp
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@@ -75,6 +75,16 @@ rust_task::delete_this()
sched_loop->release_task(this);
}
// All failure goes through me. Put your breakpoints here!
extern "C" void
rust_task_fail(rust_task *task,
char const *expr,
char const *file,
size_t line) {
assert(task != NULL);
task->begin_failure(expr, file, line);
}
struct spawn_args {
rust_task *task;
spawn_fn f;
@@ -264,6 +274,25 @@ bool rust_task_is_unwinding(rust_task *rt) {
void
rust_task::fail() {
// See note in ::kill() regarding who should call this.
fail(NULL, NULL, 0);
}
void
rust_task::fail(char const *expr, char const *file, size_t line) {
rust_task_fail(this, expr, file, line);
}
// Called only by rust_task_fail
void
rust_task::begin_failure(char const *expr, char const *file, size_t line) {
if (expr) {
// FIXME: Change this message to be
// 'task failed at ...'
LOG_ERR(this, task, "upcall fail '%s', %s:%" PRIdPTR,
expr, file, line);
}
DLOG(sched_loop, task, "task %s @0x%" PRIxPTR " failing", name, this);
backtrace();
unwinding = true;