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first pass at more comprehensive async layer, for replacing task system & providing single mechanism for async work, which is currently done ad-hoc in various layers

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This commit is contained in:
Ryan Fleury
2024-10-29 16:27:21 -07:00
parent 1b5321ad8e
commit d0b97a3010
9 changed files with 366 additions and 64 deletions
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src/task_system/task_system.c
+21 -13
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@@ -11,6 +11,13 @@ ts_ticket_zero(void)
return ticket;
}
internal B32
ts_ticket_match(TS_Ticket a, TS_Ticket b)
{
B32 result = MemoryMatchStruct(&a, &b);
return result;
}
internal void
ts_ticket_list_push(Arena *arena, TS_TicketList *list, TS_Ticket ticket)
{
@@ -65,7 +72,7 @@ ts_thread_count(void)
//~ rjf: High-Level Task Kickoff / Joining
internal TS_Ticket
ts_kickoff(TS_TaskFunctionType *entry_point, Arena **optional_arena_ptr, void *p)
ts_kickoff_(TS_TaskFunctionType *entry_point, TS_KickoffParams *params)
{
ProfBeginFunction();
@@ -93,7 +100,7 @@ ts_kickoff(TS_TaskFunctionType *entry_point, Arena **optional_arena_ptr, void *p
}
artifact->num = artifact_num;
artifact->task_is_done = 0;
artifact->result = 0;
artifact->out = 0;
}
}
@@ -107,20 +114,20 @@ ts_kickoff(TS_TaskFunctionType *entry_point, Arena **optional_arena_ptr, void *p
{
U64 unconsumed_size = ts_shared->u2t_ring_write_pos - ts_shared->u2t_ring_read_pos;
U64 available_size = ts_shared->u2t_ring_size-unconsumed_size;
if(available_size >= sizeof(entry_point) + sizeof(p) + sizeof(ticket))
if(available_size >= sizeof(entry_point) + sizeof(Arena *) + sizeof(params->in) + sizeof(ticket))
{
Arena *task_arena = 0;
if(optional_arena_ptr != 0)
if(params->optional_arena_ptr != 0)
{
task_arena = *optional_arena_ptr;
task_arena = *params->optional_arena_ptr;
}
ts_shared->u2t_ring_write_pos += ring_write_struct(ts_shared->u2t_ring_base, ts_shared->u2t_ring_size, ts_shared->u2t_ring_write_pos, &entry_point);
ts_shared->u2t_ring_write_pos += ring_write_struct(ts_shared->u2t_ring_base, ts_shared->u2t_ring_size, ts_shared->u2t_ring_write_pos, &task_arena);
ts_shared->u2t_ring_write_pos += ring_write_struct(ts_shared->u2t_ring_base, ts_shared->u2t_ring_size, ts_shared->u2t_ring_write_pos, &p);
ts_shared->u2t_ring_write_pos += ring_write_struct(ts_shared->u2t_ring_base, ts_shared->u2t_ring_size, ts_shared->u2t_ring_write_pos, &params->in);
ts_shared->u2t_ring_write_pos += ring_write_struct(ts_shared->u2t_ring_base, ts_shared->u2t_ring_size, ts_shared->u2t_ring_write_pos, &ticket);
if(optional_arena_ptr != 0)
if(params->optional_arena_ptr != 0)
{
*optional_arena_ptr = 0;
*params->optional_arena_ptr = 0;
}
break;
}
@@ -133,10 +140,10 @@ ts_kickoff(TS_TaskFunctionType *entry_point, Arena **optional_arena_ptr, void *p
return ticket;
}
internal void *
internal TS_JoinResult
ts_join(TS_Ticket ticket, U64 endt_us)
{
void *result = 0;
TS_JoinResult result = {0};
U64 artifact_num = ticket.u64[0];
U64 slot_idx = artifact_num%ts_shared->artifact_slots_count;
U64 stripe_idx = slot_idx%ts_shared->artifact_stripes_count;
@@ -152,7 +159,8 @@ ts_join(TS_Ticket ticket, U64 endt_us)
{
OS_MutexScopeRWPromote(stripe->rw_mutex)
{
result = artifact->result;
result.good = 1;
result.out = artifact->out;
SLLStackPush(stripe->free_artifact, artifact);
}
break;
@@ -211,7 +219,7 @@ ts_task_thread__entry_point(void *p)
}
//- rjf: run task
void *task_result = task_function(task_arena, thread_idx, task_params);
void *task_out = task_function(task_arena, thread_idx, task_params);
//- rjf: store into artifact
U64 artifact_num = task_ticket.u64[0];
@@ -223,7 +231,7 @@ ts_task_thread__entry_point(void *p)
OS_MutexScopeW(stripe->rw_mutex)
{
artifact->task_is_done = 1;
artifact->result = task_result;
artifact->out = task_out;
}
os_condition_variable_broadcast(stripe->cv);
}