From fc00c656c96528112d05cf0edf8631bd5eaea446 Mon Sep 17 00:00:00 2001 From: Kacper Date: Sun, 7 Dec 2025 20:10:31 +0100 Subject: Add build system scaffolding and libc headers --- include/bits/select.h | 41 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 41 insertions(+) create mode 100644 include/bits/select.h (limited to 'include/bits/select.h') diff --git a/include/bits/select.h b/include/bits/select.h new file mode 100644 index 00000000..f1f952ab --- /dev/null +++ b/include/bits/select.h @@ -0,0 +1,41 @@ +#ifndef __BITS_SELECT_H +#define __BITS_SELECT_H + +#ifndef __BITS_SELECT_H_ +#error "Internal header — include the public API header instead." +#endif + +#define FD_SETSIZE 1024 + +#define FD_ZERO(set) \ + do { \ + for (size_t i = 0; \ + i < sizeof((set)->fds_bits) / sizeof(fd_mask); i++) \ + (set)->fds_bits[i] = 0; \ + } while (0) + +#define FD_SET(fd, set) \ + ((set)->fds_bits[(fd) / (8 * sizeof(fd_mask))] |= \ + (1UL << ((fd) % (8 * sizeof(fd_mask))))) + +#define FD_CLR(fd, set) \ + ((set)->fds_bits[(fd) / (8 * sizeof(fd_mask))] &= \ + ~(1UL << ((fd) % (8 * sizeof(fd_mask))))) + +#define FD_ISSET(fd, set) \ + (((set)->fds_bits[(fd) / (8 * sizeof(fd_mask))] & \ + (1UL << ((fd) % (8 * sizeof(fd_mask))))) != 0) + +typedef __INT64_TYPE__ time_t; +typedef __INT64_TYPE__ suseconds_t; + +typedef struct { + unsigned long fds_bits[1024 / (8 * sizeof(unsigned long))]; +} fd_set; + +struct timeval { + time_t tv_sec; + suseconds_t tv_usec; +}; + +#endif -- cgit v1.2.3