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util/compatfd.c: use libc signalfd wrapper instead of raw syscall

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This allows the use of native signalfd instead of the sigtimedwait
based emulation on systems other than Linux.

Signed-off-by: Kacper Słomiński <kacper.slominski72@gmail.com>
Message-Id: <20210905011621.200785-1-kacper.slominski72@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Kacper Słomiński 2021-09-05 03:16:22 +02:00 • committed by Paolo Bonzini
parent ecc00666a0
commit 6bd17dccb6
2 changed files with 5 additions and 7 deletions
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7
meson.build
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@ -1420,10 +1420,9 @@ config_host_data.set('CONFIG_POSIX_MADVISE', cc.links(gnu_source_prefix + '''
#include <stddef.h>
int main(void) { return posix_madvise(NULL, 0, POSIX_MADV_DONTNEED); }'''))
config_host_data.set('CONFIG_SIGNALFD', cc.links(gnu_source_prefix + '''
#include <unistd.h>
#include <sys/syscall.h>
#include <signal.h>
int main(void) { return syscall(SYS_signalfd, -1, NULL, _NSIG / 8); }'''))
#include <sys/signalfd.h>
#include <stddef.h>
int main(void) { return signalfd(-1, NULL, SFD_CLOEXEC); }'''))
config_host_data.set('CONFIG_SPLICE', cc.links(gnu_source_prefix + '''
#include <unistd.h>
#include <fcntl.h>