eventfd_read.c « linux « src - grovel - Unnamed repository; edit this file 'description' to name the repository.

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#include <sys/eventfd.h>
#include <unistd.h>

int eventfd_read(int fd, eventfd_t *value)
{
	return (sizeof(*value) == read(fd, value, sizeof(*value))) ? 0 : -1;
}