fdo-mirrors/mesa
1
0
Fork 0
mirror of https://gitlab.freedesktop.org/mesa/mesa.git synced 2026-05-01 21:08:11 +02:00
Code Issues Projects Releases Packages Wiki Activity Actions 1

c11: Remove the code for Windows XP

Browse source 
We already require Windows Vista or later before this commit;
So the code for Windows XP can be removed.

Signed-off-by: Yonggang Luo <luoyonggang@gmail.com>
Reviewed-by: Jesse Natalie <jenatali@microsoft.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/18425>
This commit is contained in:
Yonggang Luo 2022-09-03 18:40:26 +08:00 • committed by Marge Bot
parent ea3dd4179d
commit 2f140c564f
1 changed files with 0 additions and 35 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

35
src/c11/impl/threads_win32.c
View file

@ -44,29 +44,12 @@
/*
Configuration macro:
EMULATED_THREADS_USE_NATIVE_CALL_ONCE
Use native WindowsAPI one-time initialization function.
(requires WinVista or later)
Otherwise emulate by mtx_trylock() + *busy loop* for WinXP.
EMULATED_THREADS_TSS_DTOR_SLOTNUM
Max registerable TSS dtor number.
*/
#if _WIN32_WINNT >= 0x0600
// Prefer native WindowsAPI on newer environment.
#if !defined(__MINGW32__)
#define EMULATED_THREADS_USE_NATIVE_CALL_ONCE
#endif
#endif
#define EMULATED_THREADS_TSS_DTOR_SLOTNUM 64 // see TLS_MINIMUM_AVAILABLE
// check configuration
#if defined(EMULATED_THREADS_USE_NATIVE_CALL_ONCE) && (_WIN32_WINNT < 0x0600)
#error EMULATED_THREADS_USE_NATIVE_CALL_ONCE requires _WIN32_WINNT>=0x0600
#endif
static_assert(sizeof(cnd_t) == sizeof(CONDITION_VARIABLE), "The size of cnd_t must equal to CONDITION_VARIABLE");
static_assert(sizeof(thrd_t) == sizeof(HANDLE), "The size of thrd_t must equal to HANDLE");
@ -76,8 +59,6 @@ static_assert(sizeof(once_flag) == sizeof(INIT_ONCE), "The size of once_flag mus
/*
Implementation limits:
- Conditionally emulation for "Initialization functions"
(see EMULATED_THREADS_USE_NATIVE_CALL_ONCE macro)
- Emulated `mtx_timelock()' with mtx_trylock() + *busy loop*
*/
@ -122,7 +103,6 @@ static DWORD impl_abs2relmsec(const struct timespec *abs_time)
return rel_ms;
}
#ifdef EMULATED_THREADS_USE_NATIVE_CALL_ONCE
struct impl_call_once_param { void (*func)(void); };
static BOOL CALLBACK impl_call_once_callback(PINIT_ONCE InitOnce, PVOID Parameter, PVOID *Context)
{
@ -131,7 +111,6 @@ static BOOL CALLBACK impl_call_once_callback(PINIT_ONCE InitOnce, PVOID Paramete
((void)InitOnce); ((void)Context); // suppress warning
return TRUE;
}
#endif // ifdef EMULATED_THREADS_USE_NATIVE_CALL_ONCE
static struct impl_tss_dtor_entry {
tss_t key;
@ -171,23 +150,9 @@ void
call_once(once_flag *flag, void (*func)(void))
{
assert(flag && func);
#ifdef EMULATED_THREADS_USE_NATIVE_CALL_ONCE
{
struct impl_call_once_param param;
param.func = func;
InitOnceExecuteOnce((PINIT_ONCE)flag, impl_call_once_callback, (PVOID)&param, NULL);
}
#else
if (InterlockedCompareExchangePointer((PVOID volatile *)&flag->status, (PVOID)1, (PVOID)0) == 0) {
(func)();
InterlockedExchangePointer((PVOID volatile *)&flag->status, (PVOID)2);
} else {
while (flag->status == 1) {
// busy loop!
thrd_yield();
}
}
#endif
}