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ircd:🆑 Improve event wait related.

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This commit is contained in:
Jason Volk 2021-03-18 11:15:49 -07:00
parent 519d2e3f45
commit e403565029
1 changed files with 27 additions and 6 deletions
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33
ircd/cl.cc
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@ -493,6 +493,11 @@ try
assert(this->handle);
assert(ptr);
// Perform the unmapping on unwind. This is after the mapping event
// completed and the closure was called below. The unmapping event will
// replace the event handle for this exec instance until its actual dtor;
// thus the lifetime of the exec we are constructing actually represents
// the unmapping event.
const unwind unmap{[this, &data, &q, &ptr]
{
assert(!this->handle);
@ -508,6 +513,16 @@ try
);
}};
// After the closure is called below, or throws, or if wait() throws,
// we free the completed map event here to allow for the unmap event.
const unwind rehandle{[this]
{
assert(this->handle);
call(clReleaseEvent, cl_event(this->handle));
this->handle = nullptr;
}};
// Wait for the mapping to complete before presenting the buffer.
wait();
closure(const_buffer
{
@ -587,6 +602,13 @@ try
);
}};
const unwind rehandle{[this]
{
assert(this->handle);
call(clReleaseEvent, cl_event(this->handle));
this->handle = nullptr;
}};
wait();
closure(mutable_buffer
{
@ -1089,6 +1111,11 @@ ircd::cl::work::work(void *const &handle)
ircd::cl::work::~work()
noexcept try
{
const unwind free{[this]
{
call(clReleaseEvent, cl_event(handle));
}};
wait();
}
catch(const std::exception &e)
@ -1108,12 +1135,6 @@ ircd::cl::work::wait()
if(!handle)
return false;
const unwind free{[this]
{
call(clReleaseEvent, cl_event(handle));
handle = nullptr;
}};
char buf[4] {0};
const int status
{