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eventfd: allow for all CPUs

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After fixing support for x32, unlock eventfd support for all CPUs.
Before this patch, it was explicitly limited to 64-bit ones.

You can disable eventfs manually on systems where it's auto-detected:
- cmake: `-DHAVE_EVENTFD=0`
- configure: `export ac_cv_func_eventfd=0`

Ref: c2aa504ab9 #16239
Closes #16277
This commit is contained in:
Viktor Szakats 2025-02-08 02:34:48 +01:00
parent bf823397ba
commit 4d01de3529
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GPG key ID: B5ABD165E2AEF201
4 changed files with 8 additions and 25 deletions
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4
lib/multi.c
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@ -1552,7 +1552,7 @@ CURLMcode curl_multi_wakeup(CURLM *m)
and before cleanup */
if(multi->wakeup_pair[1] != CURL_SOCKET_BAD) {
while(1) {
#ifdef USE_EVENTFD
#ifdef HAVE_EVENTFD
/* eventfd has a stringent rule of requiring the 8-byte buffer when
calling write(2) on it */
const uint64_t buf[1] = { 1 };
@ -2873,7 +2873,7 @@ CURLMcode curl_multi_cleanup(CURLM *m)
#else
#ifdef ENABLE_WAKEUP
wakeup_close(multi->wakeup_pair[0]);
#ifndef USE_EVENTFD
#ifndef HAVE_EVENTFD
wakeup_close(multi->wakeup_pair[1]);
#endif
#endif