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
eventfd(unsigned int count,int flags)9 int 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
eventfd_read(int fd,eventfd_t * value)18 int eventfd_read(int fd, eventfd_t *value)
19 {
20 return (sizeof(*value) == read(fd, value, sizeof(*value))) ? 0 : -1;
21 }
22
eventfd_write(int fd,eventfd_t value)23 int eventfd_write(int fd, eventfd_t value)
24 {
25 return (sizeof(value) == write(fd, &value, sizeof(value))) ? 0 : -1;
26 }
27