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[thread] Refactor handling of 'init_context' + add doc comments for it

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This commit is contained in:
Tetralux
2023-06-03 08:08:18 +00:00
parent 788f3c22bf
commit 5d6b923244
3 changed files with 88 additions and 22 deletions
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core/thread/thread_windows.odin
+13 -10
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@@ -2,7 +2,6 @@
//+private
package thread
import "core:runtime"
import "core:intrinsics"
import "core:sync"
import win32 "core:sys/windows"
@@ -26,24 +25,28 @@ _thread_priority_map := [Thread_Priority]i32{
.High = +2,
}
_create :: proc(procedure: Thread_Proc, priority := Thread_Priority.Normal) -> ^Thread {
_create :: proc(procedure: Thread_Proc, priority: Thread_Priority) -> ^Thread {
win32_thread_id: win32.DWORD
__windows_thread_entry_proc :: proc "stdcall" (t_: rawptr) -> win32.DWORD {
t := (^Thread)(t_)
context = t.init_context.? or_else runtime.default_context()
t.id = sync.current_thread_id()
t.procedure(t)
{
init_context := t.init_context
// NOTE(tetra, 2023-05-31): Must do this AFTER thread.start() is called, so that the user can set the init_context, etc!
// Here on Windows, the thread is created in a suspended state, and so we can select the context anywhere before the call
// to t.procedure().
context = _select_context_for_thread(init_context)
defer _maybe_destroy_default_temp_allocator(init_context)
t.procedure(t)
}
intrinsics.atomic_store(&t.flags, t.flags + {.Done})
if t.init_context == nil {
if context.temp_allocator.data == &runtime.global_default_temp_allocator_data {
runtime.default_temp_allocator_destroy(auto_cast context.temp_allocator.data)
}
}
return 0
}