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//+private
//+build windows
package testing
import win32 "core:sys/windows"
import "core:runtime"
import "core:intrinsics"
Sema :: struct {
count: i32,
}
sema_reset :: proc "contextless" (s: ^Sema) {
intrinsics.atomic_store(&s.count, 0)
}
sema_wait :: proc "contextless" (s: ^Sema) {
for {
original_count := s.count
for original_count == 0 {
win32.WaitOnAddress(
&s.count,
&original_count,
size_of(original_count),
win32.INFINITE,
)
original_count = s.count
}
if original_count == intrinsics.atomic_cxchg(&s.count, original_count-1, original_count) {
return
}
}
}
sema_post :: proc "contextless" (s: ^Sema, count := 1) {
intrinsics.atomic_add(&s.count, i32(count))
if count == 1 {
win32.WakeByAddressSingle(&s.count)
} else {
win32.WakeByAddressAll(&s.count)
}
}
Thread_Proc :: #type proc(^Thread)
MAX_USER_ARGUMENTS :: 8
Thread :: struct {
using specific: Thread_Os_Specific,
procedure: Thread_Proc,
t: ^T,
it: Internal_Test,
success: bool,
init_context: Maybe(runtime.Context),
creation_allocator: runtime.Allocator,
}
Thread_Os_Specific :: struct {
win32_thread: win32.HANDLE,
win32_thread_id: win32.DWORD,
done: bool, // see note in `is_done`
}
thread_create :: proc(procedure: Thread_Proc) -> ^Thread {
__windows_thread_entry_proc :: proc "stdcall" (t_: rawptr) -> win32.DWORD {
t := (^Thread)(t_)
context = t.init_context.? or_else runtime.default_context()
t.procedure(t)
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)
}
}
intrinsics.atomic_store(&t.done, true)
return 0
}
thread := new(Thread)
if thread == nil {
return nil
}
thread.creation_allocator = context.allocator
win32_thread_id: win32.DWORD
win32_thread := win32.CreateThread(nil, 0, __windows_thread_entry_proc, thread, win32.CREATE_SUSPENDED, &win32_thread_id)
if win32_thread == nil {
free(thread, thread.creation_allocator)
return nil
}
thread.procedure = procedure
thread.win32_thread = win32_thread
thread.win32_thread_id = win32_thread_id
thread.init_context = context
return thread
}
thread_start :: proc "contextless" (thread: ^Thread) {
win32.ResumeThread(thread.win32_thread)
}
thread_join_and_destroy :: proc(thread: ^Thread) {
if thread.win32_thread != win32.INVALID_HANDLE {
win32.WaitForSingleObject(thread.win32_thread, win32.INFINITE)
win32.CloseHandle(thread.win32_thread)
thread.win32_thread = win32.INVALID_HANDLE
}
free(thread, thread.creation_allocator)
}
thread_terminate :: proc "contextless" (thread: ^Thread, exit_code: int) {
win32.TerminateThread(thread.win32_thread, u32(exit_code))
}
global_threaded_runner_semaphore: Sema
global_exception_handler: rawptr
global_current_thread: ^Thread
global_current_t: ^T
run_internal_test :: proc(t: ^T, it: Internal_Test) {
thread := thread_create(proc(thread: ^Thread) {
exception_handler_proc :: proc "stdcall" (ExceptionInfo: ^win32.EXCEPTION_POINTERS) -> win32.LONG {
switch ExceptionInfo.ExceptionRecord.ExceptionCode {
case
win32.EXCEPTION_DATATYPE_MISALIGNMENT,
win32.EXCEPTION_BREAKPOINT,
win32.EXCEPTION_ACCESS_VIOLATION,
win32.EXCEPTION_ILLEGAL_INSTRUCTION,
win32.EXCEPTION_ARRAY_BOUNDS_EXCEEDED,
win32.EXCEPTION_STACK_OVERFLOW:
sema_post(&global_threaded_runner_semaphore)
return win32.EXCEPTION_EXECUTE_HANDLER
}
return win32.EXCEPTION_CONTINUE_SEARCH
}
global_exception_handler = win32.AddVectoredExceptionHandler(0, exception_handler_proc)
context.assertion_failure_proc = proc(prefix, message: string, loc: runtime.Source_Code_Location) -> ! {
errorf(t=global_current_t, format="%s %s", args={prefix, message}, loc=loc)
intrinsics.trap()
}
thread.it.p(thread.t)
thread.success = true
sema_post(&global_threaded_runner_semaphore)
})
sema_reset(&global_threaded_runner_semaphore)
global_current_t = t
t._fail_now = proc() -> ! {
intrinsics.trap()
}
thread.t = t
thread.it = it
thread.success = false
thread_start(thread)
sema_wait(&global_threaded_runner_semaphore)
thread_terminate(thread, int(!thread.success))
thread_join_and_destroy(thread)
win32.RemoveVectoredExceptionHandler(global_exception_handler)
if !thread.success && t.error_count == 0 {
t.error_count += 1
}
return
}
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