Ruby 3.1.3p185 (2022-11-24 revision 1a6b16756e0ba6b95ab71a441357ed5484e33498)
win32.h
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1#ifndef RBIMPL_INTERN_SELECT_WIN32_H /*-*-C++-*-vi:se ft=cpp:*/
2#define RBIMPL_INTERN_SELECT_WIN32_H
23#include "ruby/internal/dosish.h" /* for rb_w32_select */
28#include "ruby/assert.h"
29
31#define rb_fd_zero rb_fd_zero
32#define rb_fd_clr rb_fd_clr
33#define rb_fd_isset rb_fd_isset
34#define rb_fd_copy rb_fd_copy
35#define rb_fd_dup rb_fd_dup
36#define rb_fd_ptr rb_fd_ptr
37#define rb_fd_max rb_fd_max
41
42struct timeval;
43
49typedef struct {
50 int capa;
51 fd_set *fdset;
53
67
78
87void rb_fd_set(int fd, rb_fdset_t *f);
88
98void rb_w32_fd_copy(rb_fdset_t *dst, const fd_set *src, int max);
99
109void rb_w32_fd_dup(rb_fdset_t *dst, const rb_fdset_t *src);
110
112
121static inline void
123{
124 f->fdset->fd_count = 0;
125}
126
135static inline void
137{
138 rb_w32_fdclr(n, f->fdset);
139}
140
150static inline int
152{
153 return rb_w32_fdisset(n, f->fdset);
154}
155
165static inline void
166rb_fd_copy(rb_fdset_t *dst, const fd_set *src, int n)
167{
168 rb_w32_fd_copy(dst, src, n);
169}
170
180static inline void
182{
183 rb_w32_fd_dup(dst, src);
184}
185
211static inline int
212rb_fd_select(int n, rb_fdset_t *rfds, rb_fdset_t *wfds, rb_fdset_t *efds, struct timeval *timeout)
213{
214 return rb_w32_select(
215 n,
216 rfds ? rfds->fdset : NULL,
217 wfds ? wfds->fdset : NULL,
218 efds ? efds->fdset : NULL,
219 timeout);
220}
221
236static inline fd_set *
238{
239 return f->fdset;
240}
241
250static inline int
252{
253 const fd_set *p = f->fdset;
254
256 return p->fd_count;
257}
258
259#endif /* RBIMPL_INTERN_SELECT_WIN32_H */
#define RBIMPL_ASSERT_OR_ASSUME(expr)
This is either RUBY_ASSERT or RBIMPL_ASSUME, depending on RUBY_DEBUG.
Definition: assert.h:229
Tweaking visibility of C variables/functions.
#define RBIMPL_SYMBOL_EXPORT_END()
Counterpart of RBIMPL_SYMBOL_EXPORT_BEGIN.
Definition: dllexport.h:106
#define RBIMPL_SYMBOL_EXPORT_BEGIN()
Shortcut macro equivalent to RUBY_SYMBOL_EXPORT_BEGIN extern "C" {.
Definition: dllexport.h:97
Support for so-called dosish systems.
RBIMPL_ATTR_PURE() int rb_io_read_pending(rb_io_t *fptr)
Queries if the passed IO has any pending reads.
void rb_fd_set(int fd, rb_fdset_t *f)
Sets an fd to a fdset.
static int rb_fd_isset(int n, rb_fdset_t *f)
Queries if the given FD is in the given set.
Definition: win32.h:151
static int rb_fd_max(const rb_fdset_t *f)
It seems this function has no use.
Definition: win32.h:251
void rb_w32_fd_dup(rb_fdset_t *dst, const rb_fdset_t *src)
Identical to rb_w32_fd_copy(), except it copies unlimited number of file descriptors.
Definition: win32.c:2956
static void rb_fd_zero(rb_fdset_t *f)
Wipes out the current set of FDs.
Definition: win32.h:122
static void rb_fd_clr(int n, rb_fdset_t *f)
Releases a specific FD from the given fdset.
Definition: win32.h:136
void rb_fd_init(rb_fdset_t *f)
(Re-)initialises a fdset.
void rb_w32_fd_copy(rb_fdset_t *dst, const fd_set *src, int max)
Destructively overwrites an fdset with another.
Definition: win32.c:2941
static void rb_fd_dup(rb_fdset_t *dst, const rb_fdset_t *src)
Identical to rb_fd_copy(), except it copies unlimited number of file descriptors.
Definition: win32.h:181
void rb_fd_term(rb_fdset_t *f)
Destroys the rb_fdset_t, releasing any memory and resources it used.
static int rb_fd_select(int n, rb_fdset_t *rfds, rb_fdset_t *wfds, rb_fdset_t *efds, struct timeval *timeout)
Waits for multiple file descriptors at once.
Definition: win32.h:212
static fd_set * rb_fd_ptr(const rb_fdset_t *f)
Raw pointer to fd_set.
Definition: win32.h:237
static void rb_fd_copy(rb_fdset_t *dst, const fd_set *src, int n)
Destructively overwrites an fdset with another.
Definition: win32.h:166
Defines RBIMPL_ATTR_NOALIAS.
#define RBIMPL_ATTR_NOALIAS()
Wraps (or simulates) __declspec((noalias))
Definition: noalias.h:62
Defines RBIMPL_ATTR_NONNULL.
#define RBIMPL_ATTR_NONNULL(list)
Wraps (or simulates) __attribute__((nonnull))
Definition: nonnull.h:27
fd_set rb_fdset_t
The data structure which wraps the fd_set bitmap used by select(2).
Definition: posix.h:48
Defines RBIMPL_ATTR_PURE.
#define RBIMPL_ATTR_PURE_UNLESS_DEBUG()
Enables RBIMPL_ATTR_PURE if and only if.
Definition: pure.h:38
The data structure which wraps the fd_set bitmap used by select(2).
fd_set * fdset
File descriptors buffer.
int capa
Maximum allowed number of FDs.
Definition: win32.h:50