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Change support vector to Windows 8+

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Doing this makes binaries tinier, since we don't need to have all the
extra code for supporting a 32-bit address space. It also benefits us
because we're able to use WIN32 futexes, which makes locking simpler.

b69f3d2488 is what officially ended our
Windows 7 support. This change is merely a formalization. You can use
old versions of Cosmo now and forevermore if you need Windows 7 since
our repository is hermetic and vendors all its dependencies.

Won't fix #617
This commit is contained in:
Justine Tunney 2022-09-15 03:49:34 -07:00
parent 6c90f830d9
commit 134ffee519
No known key found for this signature in database
GPG key ID: BE714B4575D6E328
25 changed files with 296 additions and 167 deletions
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8
third_party/nsync/mu_semaphore.c vendored
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@ -23,7 +23,7 @@
/* Initialize *s; the initial value is 0. */
void nsync_mu_semaphore_init (nsync_semaphore *s) {
if (!IsWindows ())
if (NSYNC_FUTEX_WIN32 || !IsWindows ())
nsync_mu_semaphore_init_futex (s);
else
nsync_mu_semaphore_init_win32 (s);
@ -31,7 +31,7 @@ void nsync_mu_semaphore_init (nsync_semaphore *s) {
/* Wait until the count of *s exceeds 0, and decrement it. */
void nsync_mu_semaphore_p (nsync_semaphore *s) {
if (!IsWindows ())
if (NSYNC_FUTEX_WIN32 || !IsWindows ())
nsync_mu_semaphore_p_futex (s);
else
nsync_mu_semaphore_p_win32 (s);
@ -41,7 +41,7 @@ void nsync_mu_semaphore_p (nsync_semaphore *s) {
the count of *s is non-zero, in which case decrement *s and return 0;
or abs_deadline expires, in which case return ETIMEDOUT. */
int nsync_mu_semaphore_p_with_deadline (nsync_semaphore *s, nsync_time abs_deadline) {
if (!IsWindows ())
if (NSYNC_FUTEX_WIN32 || !IsWindows ())
return nsync_mu_semaphore_p_with_deadline_futex (s, abs_deadline);
else
return nsync_mu_semaphore_p_with_deadline_win32 (s, abs_deadline);
@ -49,7 +49,7 @@ int nsync_mu_semaphore_p_with_deadline (nsync_semaphore *s, nsync_time abs_deadl
/* Ensure that the count of *s is at least 1. */
void nsync_mu_semaphore_v (nsync_semaphore *s) {
if (!IsWindows ())
if (NSYNC_FUTEX_WIN32 || !IsWindows ())
nsync_mu_semaphore_v_futex (s);
else
nsync_mu_semaphore_v_win32 (s);