1#include <sys/eventfd.h> 2#include <unistd.h> 3#include <errno.h> 4#include "syscall.h" 5#ifdef OHOS_FDTRACK_HOOK_ENABLE 6#include "musl_fdtrack_hook.h" 7#endif 8 9int eventfd(unsigned int count, int flags) 10{ 11 int r = __syscall(SYS_eventfd2, count, flags); 12#ifdef SYS_eventfd 13 if (r==-ENOSYS && !flags) r = __syscall(SYS_eventfd, count); 14#endif 15 return __syscall_ret(r); 16} 17 18int eventfd_read(int fd, eventfd_t *value) 19{ 20 return (sizeof(*value) == read(fd, value, sizeof(*value))) ? 0 : -1; 21} 22 23int eventfd_write(int fd, eventfd_t value) 24{ 25 return (sizeof(value) == write(fd, &value, sizeof(value))) ? 0 : -1; 26} 27