From 4abab5ad6c8465a7528ccdd5f49367da05f78bbd Mon Sep 17 00:00:00 2001 From: Vladimir Azarov Date: Tue, 1 Oct 2024 15:47:05 +0200 Subject: Initial version --- src/linux/eventfd.c | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+) create mode 100644 src/linux/eventfd.c (limited to 'src/linux/eventfd.c') diff --git a/src/linux/eventfd.c b/src/linux/eventfd.c new file mode 100644 index 0000000..68e489c --- /dev/null +++ b/src/linux/eventfd.c @@ -0,0 +1,23 @@ +#include +#include +#include +#include "syscall.h" + +int eventfd(unsigned int count, int flags) +{ + int r = __syscall(SYS_eventfd2, count, flags); +#ifdef SYS_eventfd + if (r==-ENOSYS && !flags) r = __syscall(SYS_eventfd, count); +#endif + return __syscall_ret(r); +} + +int eventfd_read(int fd, eventfd_t *value) +{ + return (sizeof(*value) == read(fd, value, sizeof(*value))) ? 0 : -1; +} + +int eventfd_write(int fd, eventfd_t value) +{ + return (sizeof(value) == write(fd, &value, sizeof(value))) ? 0 : -1; +} -- cgit v1.2.3