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Last change on this file since dab09ad was 97c3159, checked in by Andrew Beach <ajbeach@…>, 5 years ago
Fixed some tab/space confusion.
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1	//
2	// Cforall Version 1.0.0 Copyright (C) 2020 University of Waterloo
3	//
4	// The contents of this file are covered under the licence agreement in the
5	// file "LICENCE" distributed with Cforall.
6	//
7	// iocall.cfa --
8	//
9	// Author : Thierry Delisle
10	// Created On : Wed Jul 1 14:51:00 2020
11	// Last Modified By :
12	// Last Modified On :
13	// Update Count :
14	//
15
16	#define __cforall_thread__
17
18	#include "bits/defs.hfa"
19	#include "kernel.hfa"
20
21	//=============================================================================================
22	// I/O uring backend
23	//=============================================================================================
24
25	#if defined(CFA_HAVE_LINUX_IO_URING_H)
26	#include <assert.h>
27	#include <stdint.h>
28	#include <errno.h>
29	#include <linux/io_uring.h>
30
31	#include "kernel/fwd.hfa"
32	#include "io/types.hfa"
33
34	extern [* struct io_uring_sqe, uint32_t] __submit_alloc( struct __io_data & ring, uint64_t data );
35	extern void __submit( struct io_context * ctx, uint32_t idx ) __attribute__((nonnull (1)));
36
37	static inline void ?{}(struct io_uring_sqe & this, uint8_t opcode, int fd) {
38	this.opcode = opcode;
39	#if !defined(IOSQE_ASYNC)
40	this.flags = 0;
41	#else
42	this.flags = IOSQE_ASYNC;
43	#endif
44	this.ioprio = 0;
45	this.fd = fd;
46	this.off = 0;
47	this.addr = 0;
48	this.len = 0;
49	this.rw_flags = 0;
50	this.__pad2[0] = this.__pad2[1] = this.__pad2[2] = 0;
51	}
52
53	static inline void ?{}(struct io_uring_sqe & this, uint8_t opcode, int fd, void * addr, uint32_t len, uint64_t off ) {
54	(this){ opcode, fd };
55	this.off = off;
56	this.addr = (uint64_t)(uintptr_t)addr;
57	this.len = len;
58	}
59
60	static inline io_context * __get_io_context( void ) {
61	cluster * cltr = active_cluster();
62	/* paranoid */ verifyf( cltr, "No active cluster for io operation\n");
63	assertf( cltr->io.cnt > 0, "Cluster %p has no default io contexts and no context was specified\n", cltr );
64	/* paranoid */ verifyf( cltr->io.ctxs, "default io contexts for cluster %p are missing\n", cltr);
65	return &cltr->io.ctxs[ __tls_rand() % cltr->io.cnt ];
66	}
67
68
69	#if defined(CFA_HAVE_IOSQE_FIXED_FILE) && defined(CFA_HAVE_IOSQE_IO_DRAIN) && defined(CFA_HAVE_IOSQE_ASYNC)
70	#define REGULAR_FLAGS (IOSQE_FIXED_FILE \| IOSQE_IO_DRAIN \| IOSQE_ASYNC)
71	#elif defined(CFA_HAVE_IOSQE_FIXED_FILE) && defined(CFA_HAVE_IOSQE_ASYNC)
72	#define REGULAR_FLAGS (IOSQE_FIXED_FILE \| IOSQE_ASYNC)
73	#elif defined(CFA_HAVE_IOSQE_FIXED_FILE) && defined(CFA_HAVE_IOSQE_IO_DRAIN)
74	#define REGULAR_FLAGS (IOSQE_FIXED_FILE \| IOSQE_IO_DRAIN)
75	#elif defined(CFA_HAVE_IOSQE_IO_DRAIN) && defined(CFA_HAVE_IOSQE_ASYNC)
76	#define REGULAR_FLAGS (IOSQE_IO_DRAIN \| IOSQE_ASYNC)
77	#elif defined(CFA_HAVE_IOSQE_FIXED_FILE)
78	#define REGULAR_FLAGS (IOSQE_FIXED_FILE)
79	#elif defined(CFA_HAVE_IOSQE_IO_DRAIN)
80	#define REGULAR_FLAGS (IOSQE_IO_DRAIN)
81	#elif defined(CFA_HAVE_IOSQE_ASYNC)
82	#define REGULAR_FLAGS (IOSQE_ASYNC)
83	#else
84	#define REGULAR_FLAGS (0)
85	#endif
86
87	#if defined(CFA_HAVE_IOSQE_IO_LINK) && defined(CFA_HAVE_IOSQE_IO_HARDLINK)
88	#define LINK_FLAGS (IOSQE_IO_LINK \| IOSQE_IO_HARDLINK)
89	#elif defined(CFA_HAVE_IOSQE_IO_LINK)
90	#define LINK_FLAGS (IOSQE_IO_LINK)
91	#elif defined(CFA_HAVE_IOSQE_IO_HARDLINK)
92	#define LINK_FLAGS (IOSQE_IO_HARDLINK)
93	#else
94	#define LINK_FLAGS (0)
95	#endif
96
97	#if defined(CFA_HAVE_SPLICE_F_FD_IN_FIXED)
98	#define SPLICE_FLAGS (SPLICE_F_FD_IN_FIXED)
99	#else
100	#define SPLICE_FLAGS (0)
101	#endif
102
103
104	#define __submit_prelude \
105	if( 0 != (submit_flags & LINK_FLAGS) ) { errno = ENOTSUP; return -1; } \
106	(void)timeout; (void)cancellation; \
107	if( !context ) context = __get_io_context(); \
108	__io_user_data_t data = { 0, active_thread() }; \
109	struct __io_data & ring = *context->thrd.ring; \
110	struct io_uring_sqe * sqe; \
111	uint32_t idx; \
112	[sqe, idx] = __submit_alloc( ring, (uint64_t)(uintptr_t)&data ); \
113	sqe->flags = REGULAR_FLAGS & submit_flags;
114
115	#define __submit_wait \
116	/__cfaabi_bits_print_safe( STDERR_FILENO, "Preparing user data %p for %p\n", &data, data.thrd );/ \
117	verify( sqe->user_data == (uint64_t)(uintptr_t)&data ); \
118	__submit( context, idx ); \
119	park( __cfaabi_dbg_ctx ); \
120	if( data.result < 0 ) { \
121	errno = -data.result; \
122	return -1; \
123	} \
124	return data.result;
125	#endif
126
127	//=============================================================================================
128	// I/O Forwards
129	//=============================================================================================
130	#include <time.hfa>
131
132	// Some forward declarations
133	#include <errno.h>
134	#include <unistd.h>
135
136	extern "C" {
137	#include <sys/types.h>
138	#include <sys/socket.h>
139	#include <sys/syscall.h>
140
141	#if defined(HAVE_PREADV2)
142	struct iovec;
143	extern ssize_t preadv2 (int fd, const struct iovec *iov, int iovcnt, off_t offset, int flags);
144	#endif
145	#if defined(HAVE_PWRITEV2)
146	struct iovec;
147	extern ssize_t pwritev2(int fd, const struct iovec *iov, int iovcnt, off_t offset, int flags);
148	#endif
149
150	extern int fsync(int fd);
151	extern int sync_file_range(int fd, int64_t offset, int64_t nbytes, unsigned int flags);
152
153	struct msghdr;
154	struct sockaddr;
155	extern ssize_t sendmsg(int sockfd, const struct msghdr *msg, int flags);
156	extern ssize_t recvmsg(int sockfd, struct msghdr *msg, int flags);
157	extern ssize_t send(int sockfd, const void *buf, size_t len, int flags);
158	extern ssize_t recv(int sockfd, void *buf, size_t len, int flags);
159	extern int accept4(int sockfd, struct sockaddr addr, socklen_t addrlen, int flags);
160	extern int connect(int sockfd, const struct sockaddr *addr, socklen_t addrlen);
161
162	extern int fallocate(int fd, int mode, uint64_t offset, uint64_t len);
163	extern int posix_fadvise(int fd, uint64_t offset, uint64_t len, int advice);
164	extern int madvise(void *addr, size_t length, int advice);
165
166	extern int openat(int dirfd, const char *pathname, int flags, mode_t mode);
167	extern int close(int fd);
168
169	extern ssize_t read (int fd, void *buf, size_t count);
170
171	extern ssize_t splice(int fd_in, loff_t off_in, int fd_out, loff_t off_out, size_t len, unsigned int flags);
172	extern ssize_t tee(int fd_in, int fd_out, size_t len, unsigned int flags);
173	}
174
175	//=============================================================================================
176	// I/O Interface
177	//=============================================================================================
178
179	//-----------------------------------------------------------------------------
180	// Asynchronous operations
181	#if defined(HAVE_PREADV2)
182	ssize_t cfa_preadv2(int fd, const struct iovec iov, int iovcnt, off_t offset, int flags, int submit_flags, Duration timeout, io_cancellation cancellation, io_context * context) {
183	#if !defined(CFA_HAVE_LINUX_IO_URING_H) \|\| !defined(CFA_HAVE_IORING_OP_READV)
184	return preadv2(fd, iov, iovcnt, offset, flags);
185	#else
186	__submit_prelude
187
188	(*sqe){ IORING_OP_READV, fd, iov, iovcnt, offset };
189
190	__submit_wait
191	#endif
192	}
193	#endif
194
195	#if defined(HAVE_PWRITEV2)
196	ssize_t cfa_pwritev2(int fd, const struct iovec iov, int iovcnt, off_t offset, int flags, int submit_flags, Duration timeout, io_cancellation cancellation, io_context * context) {
197	#if !defined(CFA_HAVE_LINUX_IO_URING_H) \|\| !defined(CFA_HAVE_IORING_OP_WRITEV)
198	return pwritev2(fd, iov, iovcnt, offset, flags);
199	#else
200	__submit_prelude
201
202	(*sqe){ IORING_OP_WRITEV, fd, iov, iovcnt, offset };
203
204	__submit_wait
205	#endif
206	}
207	#endif
208
209	int cfa_fsync(int fd, int submit_flags, Duration timeout, io_cancellation * cancellation, io_context * context) {
210	#if !defined(CFA_HAVE_LINUX_IO_URING_H) \|\| !defined(CFA_HAVE_IORING_OP_FSYNC)
211	return fsync(fd);
212	#else
213	__submit_prelude
214
215	(*sqe){ IORING_OP_FSYNC, fd };
216
217	__submit_wait
218	#endif
219	}
220
221	int cfa_sync_file_range(int fd, int64_t offset, int64_t nbytes, unsigned int flags, int submit_flags, Duration timeout, io_cancellation * cancellation, io_context * context) {
222	#if !defined(CFA_HAVE_LINUX_IO_URING_H) \|\| !defined(CFA_HAVE_IORING_OP_SYNC_FILE_RANGE)
223	return sync_file_range(fd, offset, nbytes, flags);
224	#else
225	__submit_prelude
226
227	(*sqe){ IORING_OP_SYNC_FILE_RANGE, fd };
228	sqe->off = offset;
229	sqe->len = nbytes;
230	sqe->sync_range_flags = flags;
231
232	__submit_wait
233	#endif
234	}
235
236
237	ssize_t cfa_sendmsg(int sockfd, const struct msghdr msg, int flags, int submit_flags, Duration timeout, io_cancellation cancellation, io_context * context) {
238	#if !defined(CFA_HAVE_LINUX_IO_URING_H) \|\| !defined(CFA_HAVE_IORING_OP_SENDMSG)
239	return sendmsg(sockfd, msg, flags);
240	#else
241	__submit_prelude
242
243	(*sqe){ IORING_OP_SENDMSG, sockfd, msg, 1, 0 };
244	sqe->msg_flags = flags;
245
246	__submit_wait
247	#endif
248	}
249
250	ssize_t cfa_recvmsg(int sockfd, struct msghdr msg, int flags, int submit_flags, Duration timeout, io_cancellation cancellation, io_context * context) {
251	#if !defined(CFA_HAVE_LINUX_IO_URING_H) \|\| !defined(CFA_HAVE_IORING_OP_RECVMSG)
252	return recvmsg(sockfd, msg, flags);
253	#else
254	__submit_prelude
255
256	(*sqe){ IORING_OP_RECVMSG, sockfd, msg, 1, 0 };
257	sqe->msg_flags = flags;
258
259	__submit_wait
260	#endif
261	}
262
263	ssize_t cfa_send(int sockfd, const void buf, size_t len, int flags, int submit_flags, Duration timeout, io_cancellation cancellation, io_context * context) {
264	#if !defined(CFA_HAVE_LINUX_IO_URING_H) \|\| !defined(CFA_HAVE_IORING_OP_SEND)
265	return send( sockfd, buf, len, flags );
266	#else
267	__submit_prelude
268
269	(*sqe){ IORING_OP_SEND, sockfd };
270	sqe->addr = (uint64_t)buf;
271	sqe->len = len;
272	sqe->msg_flags = flags;
273
274	__submit_wait
275	#endif
276	}
277
278	ssize_t cfa_recv(int sockfd, void buf, size_t len, int flags, int submit_flags, Duration timeout, io_cancellation cancellation, io_context * context) {
279	#if !defined(CFA_HAVE_LINUX_IO_URING_H) \|\| !defined(CFA_HAVE_IORING_OP_RECV)
280	return recv( sockfd, buf, len, flags );
281	#else
282	__submit_prelude
283
284	(*sqe){ IORING_OP_RECV, sockfd };
285	sqe->addr = (uint64_t)buf;
286	sqe->len = len;
287	sqe->msg_flags = flags;
288
289	__submit_wait
290	#endif
291	}
292
293	int cfa_accept4(int sockfd, struct sockaddr addr, socklen_t addrlen, int flags, int submit_flags, Duration timeout, io_cancellation * cancellation, io_context * context) {
294	#if !defined(CFA_HAVE_LINUX_IO_URING_H) \|\| !defined(CFA_HAVE_IORING_OP_ACCEPT)
295	return accept4( sockfd, addr, addrlen, flags );
296	#else
297	__submit_prelude
298
299	(*sqe){ IORING_OP_ACCEPT, sockfd };
300	sqe->addr = (uint64_t)(uintptr_t)addr;
301	sqe->addr2 = (uint64_t)(uintptr_t)addrlen;
302	sqe->accept_flags = flags;
303
304	__submit_wait
305	#endif
306	}
307
308	int cfa_connect(int sockfd, const struct sockaddr addr, socklen_t addrlen, int submit_flags, Duration timeout, io_cancellation cancellation, io_context * context) {
309	#if !defined(CFA_HAVE_LINUX_IO_URING_H) \|\| !defined(CFA_HAVE_IORING_OP_CONNECT)
310	return connect( sockfd, addr, addrlen );
311	#else
312	__submit_prelude
313
314	(*sqe){ IORING_OP_CONNECT, sockfd };
315	sqe->addr = (uint64_t)(uintptr_t)addr;
316	sqe->off = (uint64_t)(uintptr_t)addrlen;
317
318	__submit_wait
319	#endif
320	}
321
322	int cfa_fallocate(int fd, int mode, uint64_t offset, uint64_t len, int submit_flags, Duration timeout, io_cancellation * cancellation, io_context * context) {
323	#if !defined(CFA_HAVE_LINUX_IO_URING_H) \|\| !defined(CFA_HAVE_IORING_OP_FALLOCATE)
324	return fallocate( fd, mode, offset, len );
325	#else
326	__submit_prelude
327
328	#warning FALLOCATE documentation for linux 5.7 is incorrect, and does not handle mode
329
330	(*sqe){ IORING_OP_FALLOCATE, fd };
331	sqe->off = offset;
332	sqe->len = mode;
333	sqe->addr = len;
334
335	__submit_wait
336	#endif
337	}
338
339	int cfa_fadvise(int fd, uint64_t offset, uint64_t len, int advice, int submit_flags, Duration timeout, io_cancellation * cancellation, io_context * context) {
340	#if !defined(CFA_HAVE_LINUX_IO_URING_H) \|\| !defined(CFA_HAVE_IORING_OP_FADVISE)
341	return posix_fadvise( fd, offset, len, advice );
342	#else
343	__submit_prelude
344
345	(*sqe){ IORING_OP_FADVISE, fd };
346	sqe->off = (uint64_t)offset;
347	sqe->len = len;
348	sqe->fadvise_advice = advice;
349
350	__submit_wait
351	#endif
352	}
353
354	int cfa_madvise(void addr, size_t length, int advice, int submit_flags, Duration timeout, io_cancellation cancellation, io_context * context) {
355	#if !defined(CFA_HAVE_LINUX_IO_URING_H) \|\| !defined(CFA_HAVE_IORING_OP_MADVISE)
356	return madvise( addr, length, advice );
357	#else
358	__submit_prelude
359
360	(*sqe){ IORING_OP_MADVISE, 0 };
361	sqe->addr = (uint64_t)addr;
362	sqe->len = length;
363	sqe->fadvise_advice = advice;
364
365	__submit_wait
366	#endif
367	}
368
369	int cfa_openat(int dirfd, const char pathname, int flags, mode_t mode, int submit_flags, Duration timeout, io_cancellation cancellation, io_context * context) {
370	#if !defined(CFA_HAVE_LINUX_IO_URING_H) \|\| !defined(CFA_HAVE_IORING_OP_OPENAT)
371	return openat( dirfd, pathname, flags, mode );
372	#else
373	__submit_prelude
374
375	(*sqe){ IORING_OP_OPENAT, dirfd };
376	sqe->addr = (uint64_t)pathname;
377	sqe->open_flags = flags;
378	sqe->len = mode;
379
380	__submit_wait
381	#endif
382	}
383
384	int cfa_close(int fd, int submit_flags, Duration timeout, io_cancellation * cancellation, io_context * context) {
385	#if !defined(CFA_HAVE_LINUX_IO_URING_H) \|\| !defined(CFA_HAVE_IORING_OP_CLOSE)
386	return close( fd );
387	#else
388	__submit_prelude
389
390	(*sqe){ IORING_OP_CLOSE, fd };
391
392	__submit_wait
393	#endif
394	}
395
396	// Forward declare in case it is not supported
397	struct statx;
398	int cfa_statx(int dirfd, const char pathname, int flags, unsigned int mask, struct statx statxbuf, int submit_flags, Duration timeout, io_cancellation * cancellation, io_context * context) {
399	#if !defined(CFA_HAVE_LINUX_IO_URING_H) \|\| !defined(CFA_HAVE_IORING_OP_STATX)
400	#if defined(__NR_statx)
401	return syscall( __NR_statx, dirfd, pathname, flags, mask, statxbuf );
402	#else
403	errno = ENOTSUP;
404	return -1;
405	#endif
406	#else
407	__submit_prelude
408
409	(*sqe){ IORING_OP_STATX, dirfd, pathname, mask, (uint64_t)statxbuf };
410	sqe->statx_flags = flags;
411
412	__submit_wait
413	#endif
414	}
415
416	ssize_t cfa_read(int fd, void buf, size_t count, int submit_flags, Duration timeout, io_cancellation cancellation, io_context * context) {
417	#if !defined(CFA_HAVE_LINUX_IO_URING_H) \|\| !defined(CFA_HAVE_IORING_OP_READ)
418	return read( fd, buf, count );
419	#else
420	__submit_prelude
421
422	(*sqe){ IORING_OP_READ, fd, buf, count, 0 };
423
424	__submit_wait
425	#endif
426	}
427
428	ssize_t cfa_write(int fd, void buf, size_t count, int submit_flags, Duration timeout, io_cancellation cancellation, io_context * context) {
429	#if !defined(CFA_HAVE_LINUX_IO_URING_H) \|\| !defined(CFA_HAVE_IORING_OP_WRITE)
430	return read( fd, buf, count );
431	#else
432	__submit_prelude
433
434	(*sqe){ IORING_OP_WRITE, fd, buf, count, 0 };
435
436	__submit_wait
437	#endif
438	}
439
440	ssize_t cfa_splice(int fd_in, loff_t off_in, int fd_out, loff_t off_out, size_t len, unsigned int flags, int submit_flags, Duration timeout, io_cancellation * cancellation, io_context * context) {
441	#if !defined(CFA_HAVE_LINUX_IO_URING_H) \|\| !defined(CFA_HAVE_IORING_OP_SPLICE)
442	return splice( fd_in, off_in, fd_out, off_out, len, flags );
443	#else
444	__submit_prelude
445
446	(*sqe){ IORING_OP_SPLICE, fd_out };
447	if( off_out ) {
448	sqe->off = *off_out;
449	}
450	else {
451	sqe->off = (uint64_t)-1;
452	}
453	sqe->len = len;
454	sqe->splice_fd_in = fd_in;
455	if( off_in ) {
456	sqe->splice_off_in = *off_in;
457	}
458	else {
459	sqe->splice_off_in = (uint64_t)-1;
460	}
461	sqe->splice_flags = flags \| (SPLICE_FLAGS & submit_flags);
462
463	__submit_wait
464	#endif
465	}
466
467	ssize_t cfa_tee(int fd_in, int fd_out, size_t len, unsigned int flags, int submit_flags, Duration timeout, io_cancellation * cancellation, io_context * context) {
468	#if !defined(CFA_HAVE_LINUX_IO_URING_H) \|\| !defined(CFA_HAVE_IORING_OP_TEE)
469	return tee( fd_in, fd_out, len, flags );
470	#else
471	__submit_prelude
472
473	(*sqe){ IORING_OP_TEE, fd_out, 0p, len, 0 };
474	sqe->splice_fd_in = fd_in;
475	sqe->splice_flags = flags \| (SPLICE_FLAGS & submit_flags);
476
477	__submit_wait
478	#endif
479	}
480
481	//-----------------------------------------------------------------------------
482	// Check if a function is asynchronous
483
484	// Macro magic to reduce the size of the following switch case
485	#define IS_DEFINED_APPLY(f, ...) f(__VA_ARGS__)
486	#define IS_DEFINED_SECOND(first, second, ...) second
487	#define IS_DEFINED_TEST(expansion) _CFA_IO_FEATURE_##expansion
488	#define IS_DEFINED(macro) IS_DEFINED_APPLY( IS_DEFINED_SECOND,IS_DEFINED_TEST(macro) false, true)
489
490	bool has_user_level_blocking( fptr_t func ) {
491	#if defined(CFA_HAVE_LINUX_IO_URING_H)
492	#if defined(HAVE_PREADV2)
493	if( /func == (fptr_t)preadv2 \|\| /
494	func == (fptr_t)cfa_preadv2 )
495	#define _CFA_IO_FEATURE_CFA_HAVE_IORING_OP_READV ,
496	return IS_DEFINED(CFA_HAVE_IORING_OP_READV);
497	#endif
498
499	#if defined(HAVE_PWRITEV2)
500	if( /func == (fptr_t)pwritev2 \|\| /
501	func == (fptr_t)cfa_pwritev2 )
502	#define _CFA_IO_FEATURE_CFA_HAVE_IORING_OP_WRITEV ,
503	return IS_DEFINED(CFA_HAVE_IORING_OP_WRITEV);
504	#endif
505
506	if( /func == (fptr_t)fsync \|\| /
507	func == (fptr_t)cfa_fsync )
508	#define _CFA_IO_FEATURE_CFA_HAVE_IORING_OP_FSYNC ,
509	return IS_DEFINED(CFA_HAVE_IORING_OP_FSYNC);
510
511	if( /func == (fptr_t)ync_file_range \|\| /
512	func == (fptr_t)cfa_sync_file_range )
513	#define _CFA_IO_FEATURE_CFA_HAVE_IORING_OP_SYNC_FILE_RANGE ,
514	return IS_DEFINED(CFA_HAVE_IORING_OP_SYNC_FILE_RANGE);
515
516	if( /func == (fptr_t)sendmsg \|\| /
517	func == (fptr_t)cfa_sendmsg )
518	#define _CFA_IO_FEATURE_CFA_HAVE_IORING_OP_SENDMSG ,
519	return IS_DEFINED(CFA_HAVE_IORING_OP_SENDMSG);
520
521	if( /func == (fptr_t)recvmsg \|\| /
522	func == (fptr_t)cfa_recvmsg )
523	#define _CFA_IO_FEATURE_CFA_HAVE_IORING_OP_RECVMSG ,
524	return IS_DEFINED(CFA_HAVE_IORING_OP_RECVMSG);
525
526	if( /func == (fptr_t)send \|\| /
527	func == (fptr_t)cfa_send )
528	#define _CFA_IO_FEATURE_CFA_HAVE_IORING_OP_SEND ,
529	return IS_DEFINED(CFA_HAVE_IORING_OP_SEND);
530
531	if( /func == (fptr_t)recv \|\| /
532	func == (fptr_t)cfa_recv )
533	#define _CFA_IO_FEATURE_CFA_HAVE_IORING_OP_RECV ,
534	return IS_DEFINED(CFA_HAVE_IORING_OP_RECV);
535
536	if( /func == (fptr_t)accept4 \|\| /
537	func == (fptr_t)cfa_accept4 )
538	#define _CFA_IO_FEATURE_CFA_HAVE_IORING_OP_ACCEPT ,
539	return IS_DEFINED(CFA_HAVE_IORING_OP_ACCEPT);
540
541	if( /func == (fptr_t)connect \|\| /
542	func == (fptr_t)cfa_connect )
543	#define _CFA_IO_FEATURE_CFA_HAVE_IORING_OP_CONNECT ,
544	return IS_DEFINED(CFA_HAVE_IORING_OP_CONNECT);
545
546	if( /func == (fptr_t)fallocate \|\| /
547	func == (fptr_t)cfa_fallocate )
548	#define _CFA_IO_FEATURE_CFA_HAVE_IORING_OP_FALLOCATE ,
549	return IS_DEFINED(CFA_HAVE_IORING_OP_FALLOCATE);
550
551	if( /func == (fptr_t)posix_fadvise \|\| /
552	func == (fptr_t)cfa_fadvise )
553	#define _CFA_IO_FEATURE_CFA_HAVE_IORING_OP_FADVISE ,
554	return IS_DEFINED(CFA_HAVE_IORING_OP_FADVISE);
555
556	if( /func == (fptr_t)madvise \|\| /
557	func == (fptr_t)cfa_madvise )
558	#define _CFA_IO_FEATURE_CFA_HAVE_IORING_OP_MADVISE ,
559	return IS_DEFINED(CFA_HAVE_IORING_OP_MADVISE);
560
561	if( /func == (fptr_t)openat \|\| /
562	func == (fptr_t)cfa_openat )
563	#define _CFA_IO_FEATURE_CFA_HAVE_IORING_OP_OPENAT ,
564	return IS_DEFINED(CFA_HAVE_IORING_OP_OPENAT);
565
566	if( /func == (fptr_t)close \|\| /
567	func == (fptr_t)cfa_close )
568	#define _CFA_IO_FEATURE_CFA_HAVE_IORING_OP_CLOSE ,
569	return IS_DEFINED(CFA_HAVE_IORING_OP_CLOSE);
570
571	if( /func == (fptr_t)read \|\| /
572	func == (fptr_t)cfa_read )
573	#define _CFA_IO_FEATURE_CFA_HAVE_IORING_OP_READ ,
574	return IS_DEFINED(CFA_HAVE_IORING_OP_READ);
575
576	if( /func == (fptr_t)write \|\| /
577	func == (fptr_t)cfa_write )
578	#define _CFA_IO_FEATURE_CFA_HAVE_IORING_OP_WRITE ,
579	return IS_DEFINED(CFA_HAVE_IORING_OP_WRITE);
580
581	if( /func == (fptr_t)splice \|\| /
582	func == (fptr_t)cfa_splice )
583	#define _CFA_IO_FEATURE_CFA_HAVE_IORING_OP_SPLICE ,
584	return IS_DEFINED(CFA_HAVE_IORING_OP_SPLICE);
585
586	if( /func == (fptr_t)tee \|\| /
587	func == (fptr_t)cfa_tee )
588	#define _CFA_IO_FEATURE_CFA_HAVE_IORING_OP_TEE ,
589	return IS_DEFINED(CFA_HAVE_IORING_OP_TEE);
590	#endif
591
592	return false;
593	}

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