diff options
Diffstat (limited to 'include/ruby/internal/intern/select/win32.h')
| -rw-r--r-- | include/ruby/internal/intern/select/win32.h | 124 |
1 files changed, 124 insertions, 0 deletions
diff --git a/include/ruby/internal/intern/select/win32.h b/include/ruby/internal/intern/select/win32.h new file mode 100644 index 0000000000..0a1da61e63 --- /dev/null +++ b/include/ruby/internal/intern/select/win32.h @@ -0,0 +1,124 @@ +#ifndef RBIMPL_INTERN_SELECT_WIN32_H /*-*-C++-*-vi:se ft=cpp:*/ +#define RBIMPL_INTERN_SELECT_WIN32_H +/** + * @file + * @author Ruby developers <ruby-core@ruby-lang.org> + * @copyright This file is a part of the programming language Ruby. + * Permission is hereby granted, to either redistribute and/or + * modify this file, provided that the conditions mentioned in the + * file COPYING are met. Consult the file for details. + * @warning Symbols prefixed with either `RBIMPL` or `rbimpl` are + * implementation details. Don't take them as canon. They could + * rapidly appear then vanish. The name (path) of this header file + * is also an implementation detail. Do not expect it to persist + * at the place it is now. Developers are free to move it anywhere + * anytime at will. + * @note To ruby-core: remember that this header can be possibly + * recursively included from extension libraries written in C++. + * Do not expect for instance `__VA_ARGS__` is always available. + * We assume C99 for ruby itself but we don't assume languages of + * extension libraries. They could be written in C++98. + * @brief Public APIs to provide ::rb_fd_select(). + */ +#include "ruby/impl/dosish.h" /* for rb_w32_select */ +#include "ruby/impl/attr/nonnull.h" +#include "ruby/impl/attr/pure.h" +#include "ruby/impl/attr/noalias.h" +#include "ruby/impl/dllexport.h" +#include "ruby/assert.h" + +/**@cond INTERNAL_MACRO */ +#define rb_fd_zero rb_fd_zero +#define rb_fd_clr rb_fd_clr +#define rb_fd_isset rb_fd_isset +#define rb_fd_copy rb_fd_copy +#define rb_fd_dup rb_fd_dup +#define rb_fd_ptr rb_fd_ptr +#define rb_fd_max rb_fd_max +/** @endcond */ + +RBIMPL_SYMBOL_EXPORT_BEGIN() + +struct timeval; + +typedef struct { + int capa; + fd_set *fdset; +} rb_fdset_t; + +void rb_fd_init(rb_fdset_t *); +void rb_fd_term(rb_fdset_t *); +void rb_fd_set(int, rb_fdset_t *); +void rb_w32_fd_copy(rb_fdset_t *, const fd_set *, int); +void rb_w32_fd_dup(rb_fdset_t *dst, const rb_fdset_t *src); + +RBIMPL_SYMBOL_EXPORT_END() + +RBIMPL_ATTR_NONNULL(()) +RBIMPL_ATTR_NOALIAS() +static inline void +rb_fd_zero(rb_fdset_t *f) +{ + f->fdset->fd_count = 0; +} + +RBIMPL_ATTR_NONNULL(()) +static inline void +rb_fd_clr(int n, rb_fdset_t *f) +{ + rb_w32_fdclr(n, f->fdset); +} + +RBIMPL_ATTR_NONNULL(()) +static inline int +rb_fd_isset(int n, rb_fdset_t *f) +{ + return rb_w32_fdisset(n, f->fdset); +} + +RBIMPL_ATTR_NONNULL(()) +static inline void +rb_fd_copy(rb_fdset_t *dst, const fd_set *src, int n) +{ + rb_w32_fd_copy(dst, src, n); +} + +RBIMPL_ATTR_NONNULL(()) +static inline void +rb_fd_dup(rb_fdset_t *dst, const rb_fdset_t *src) +{ + rb_w32_fd_dup(dst, src); +} + +static inline int +rb_fd_select(int n, rb_fdset_t *rfds, rb_fdset_t *wfds, rb_fdset_t *efds, struct timeval *timeout) +{ + return rb_w32_select( + n, + rfds ? rfds->fdset : NULL, + wfds ? wfds->fdset : NULL, + efds ? efds->fdset : NULL, + timeout); +} + +RBIMPL_ATTR_NONNULL(()) +RBIMPL_ATTR_PURE() +/* :TODO: can this function be __attribute__((returns_nonnull)) or not? */ +static inline fd_set * +rb_fd_ptr(const rb_fdset_t *f) +{ + return f->fdset; +} + +RBIMPL_ATTR_NONNULL(()) +RBIMPL_ATTR_PURE() +static inline int +rb_fd_max(const rb_fdset_t *f) +{ + const fd_set *p = f->fdset; + + RBIMPL_ASSERT_OR_ASSUME(p); + return p->fd_count; +} + +#endif /* RBIMPL_INTERN_SELECT_WIN32_H */ |