From 8c1ab65c0f548d20b7f177bdb736daaf603340e1 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Wed, 17 Apr 2024 15:54:38 +0200
Subject: Adding upstream version 0.0~git20221206.8b7148f.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 libc-bottom-half/headers/public/__fd_set.h | 76 ++++++++++++++++++++++++++++++
 1 file changed, 76 insertions(+)
 create mode 100644 libc-bottom-half/headers/public/__fd_set.h

(limited to 'libc-bottom-half/headers/public/__fd_set.h')

diff --git a/libc-bottom-half/headers/public/__fd_set.h b/libc-bottom-half/headers/public/__fd_set.h
new file mode 100644
index 0000000..7be0b9f
--- /dev/null
+++ b/libc-bottom-half/headers/public/__fd_set.h
@@ -0,0 +1,76 @@
+#ifndef __wasilibc___fd_set_h
+#define __wasilibc___fd_set_h
+
+#include <__typedef_fd_set.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+static __inline void FD_CLR(int __fd, fd_set *__set) {
+    size_t __n = __set->__nfds;
+    for (int *__p = __set->__fds, *__e = __p + __n;
+         __p < __e; ++__p)
+    {
+        if (*__p == __fd) {
+            *__p = __e[-1];
+            __set->__nfds = __n - 1;
+            return;
+        }
+    }
+}
+
+static __inline
+#ifdef __cplusplus
+bool
+#else
+_Bool
+#endif
+FD_ISSET(int __fd, const fd_set *__set)
+{
+    size_t __n = __set->__nfds;
+    for (const int *__p = __set->__fds, *__e = __p + __n;
+         __p < __e; ++__p)
+    {
+        if (*__p == __fd) {
+            return 1;
+        }
+    }
+    return 0;
+}
+
+static __inline void FD_SET(int __fd, fd_set *__set) {
+    size_t __n = __set->__nfds;
+    for (const int *__p = __set->__fds, *__e = __p + __n;
+         __p < __e; ++__p)
+    {
+        if (*__p == __fd) {
+            return;
+        }
+    }
+    __set->__nfds = __n + 1;
+    __set->__fds[__n] = __fd;
+}
+
+static __inline void FD_ZERO(fd_set *__set) {
+    __set->__nfds = 0;
+}
+
+static __inline void FD_COPY(const fd_set *__restrict __from,
+                             fd_set *__restrict __to) {
+    size_t __n = __from->__nfds;
+    __to->__nfds = __n;
+    __builtin_memcpy(__to->__fds, __from->__fds, __n * sizeof(int));
+}
+
+#define FD_CLR(fd, set)   (FD_CLR((fd), (set)))
+#define FD_ISSET(fd, set) (FD_ISSET((fd), (set)))
+#define FD_SET(fd, set)   (FD_SET((fd), (set)))
+#define FD_ZERO(set)      (FD_ZERO((set)))
+#define FD_COPY(from, to) (FD_COPY((from), (to)))
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
-- 
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