source: libcfa/src/concurrency/io/call.cfa.in@ aa1d13c

ADT arm-eh ast-experimental enum forall-pointer-decay jacob/cs343-translation new-ast-unique-expr pthread-emulation qualifiedEnum
Last change on this file since aa1d13c was fe9468e2, checked in by Thierry Delisle <tdelisle@…>, 5 years ago

Added function thread_rand as a tls-safe version of tls_rand()
  • Property mode set to 100644
File size: 14.2 KB
Line 
1#!python3
2#
3# Cforall Version 1.0.0 Copyright (C) 2020 University of Waterloo
4#
5# The contents of this file are covered under the licence agreement in the
6# file "LICENCE" distributed with Cforall.
7#
8# call.cfa.in -- Python script to generate io/call.cfa
9#
10# Author : Thierry Delisle
11# Created On : Fri Sep 11 12:41:16 2020
12# Last Modified By :
13# Last Modified On :
14# Update Count :
15#
16
17Header = """//
18// Cforall Version 1.0.0 Copyright (C) 2020 University of Waterloo
19//
20// The contents of this file are covered under the licence agreement in the
21// file "LICENCE" distributed with Cforall.
22//
23// call.cfa -- Api for cforall
24//
25// Author : Generated from call.cfa.in
26// Created On : {}
27//
28
29"""
30
31Prelude = """#define __cforall_thread__
32
33#include "bits/defs.hfa"
34#include "kernel.hfa"
35#include "io/types.hfa"
36
37//=============================================================================================
38// I/O uring backend
39//=============================================================================================
40
41#if defined(CFA_HAVE_LINUX_IO_URING_H)
42 #include <assert.h>
43 #include <stdint.h>
44 #include <errno.h>
45 #include <linux/io_uring.h>
46
47 #include "kernel/fwd.hfa"
48
49 static const __u8 REGULAR_FLAGS = 0
50 #if defined(CFA_HAVE_IOSQE_FIXED_FILE)
51 | IOSQE_FIXED_FILE
52 #endif
53 #if defined(CFA_HAVE_IOSQE_IO_DRAIN)
54 | IOSQE_IO_DRAIN
55 #endif
56 #if defined(CFA_HAVE_IOSQE_ASYNC)
57 | IOSQE_ASYNC
58 #endif
59 ;
60
61 static const __u32 LINK_FLAGS = 0
62 #if defined(CFA_HAVE_IOSQE_IO_LINK)
63 | IOSQE_IO_LINK
64 #endif
65 #if defined(CFA_HAVE_IOSQE_IO_HARDLINK)
66 | IOSQE_IO_HARDLINK
67 #endif
68 ;
69
70 static const __u32 SPLICE_FLAGS = 0
71 #if defined(CFA_HAVE_SPLICE_F_FD_IN_FIXED)
72 | SPLICE_F_FD_IN_FIXED
73 #endif
74 ;
75
76 extern [* struct io_uring_sqe, __u32] __submit_alloc( struct __io_data & ring, __u64 data );
77 extern void __submit( struct io_context * ctx, __u32 idx ) __attribute__((nonnull (1)));
78
79 static inline io_context * __get_io_context( void ) {
80 cluster * cltr = active_cluster();
81
82 /* paranoid */ verifyf( cltr, "No active cluster for io operation\\n");
83 assertf( cltr->io.cnt > 0, "Cluster %p has no default io contexts and no context was specified\\n", cltr );
84
85 /* paranoid */ verifyf( cltr->io.ctxs, "default io contexts for cluster %p are missing\\n", cltr);
86 return &cltr->io.ctxs[ thread_rand() % cltr->io.cnt ];
87 }
88#endif
89
90//=============================================================================================
91// I/O Forwards
92//=============================================================================================
93#include <time.hfa>
94
95// Some forward declarations
96#include <errno.h>
97#include <unistd.h>
98
99extern "C" {
100 #include <sys/types.h>
101 #include <sys/socket.h>
102 #include <sys/syscall.h>
103
104#if defined(CFA_HAVE_PREADV2)
105 struct iovec;
106 extern ssize_t preadv2 (int fd, const struct iovec *iov, int iovcnt, off_t offset, int flags);
107#endif
108#if defined(CFA_HAVE_PWRITEV2)
109 struct iovec;
110 extern ssize_t pwritev2(int fd, const struct iovec *iov, int iovcnt, off_t offset, int flags);
111#endif
112
113 extern int fsync(int fd);
114
115 #if __OFF_T_MATCHES_OFF64_T
116 typedef __off64_t off_t;
117 #else
118 typedef __off_t off_t;
119 #endif
120 typedef __off64_t off64_t;
121 extern int sync_file_range(int fd, off64_t offset, off64_t nbytes, unsigned int flags);
122
123 struct msghdr;
124 struct sockaddr;
125 extern ssize_t sendmsg(int sockfd, const struct msghdr *msg, int flags);
126 extern ssize_t recvmsg(int sockfd, struct msghdr *msg, int flags);
127 extern ssize_t send(int sockfd, const void *buf, size_t len, int flags);
128 extern ssize_t recv(int sockfd, void *buf, size_t len, int flags);
129 extern int accept4(int sockfd, struct sockaddr *addr, socklen_t *addrlen, int flags);
130 extern int connect(int sockfd, const struct sockaddr *addr, socklen_t addrlen);
131
132 extern int fallocate(int fd, int mode, off_t offset, off_t len);
133 extern int posix_fadvise(int fd, off_t offset, off_t len, int advice);
134 extern int madvise(void *addr, size_t length, int advice);
135
136 extern int openat(int dirfd, const char *pathname, int flags, mode_t mode);
137 extern int close(int fd);
138
139 extern ssize_t read (int fd, void *buf, size_t count);
140
141 struct epoll_event;
142 extern int epoll_ctl(int epfd, int op, int fd, struct epoll_event *event);
143
144 extern ssize_t splice(int fd_in, loff_t *off_in, int fd_out, loff_t *off_out, size_t len, unsigned int flags);
145 extern ssize_t tee(int fd_in, int fd_out, size_t len, unsigned int flags);
146}
147
148//=============================================================================================
149// I/O Interface
150//=============================================================================================
151"""
152
153print(Header.format("A Date"))
154print(Prelude)
155
156import re
157import sys
158class Call:
159 def __init__(self, op, signature, body, define=None):
160 sig = re.search("(.*) (.*)\((.*)\)", signature)
161 if not sig:
162 print("OP '{}' has invalid signature {}".format(op, signature), file=sys.stderr)
163 sys.exit(1)
164
165 self.op = op
166 self.ret = sig.group(1)
167 self.name = sig.group(2)
168 self.params = sig.group(3)
169 self.define = define
170 self.body = ""
171
172 accepted_keys = [ 'ioprio', 'fd', 'off', 'addr2','addr', 'splice_off_in','len',
173 'rw_flags', 'fsync_flags', 'poll_events', 'poll32_events',
174 'sync_range_flags', 'msg_flags', 'timeout_flags', 'accept_flags',
175 'cancel_flags', 'open_flags', 'statx_flags', 'fadvise_advice',
176 'splice_flags', 'buf_index' ,'buf_group' 'personality',
177 'splice_fd_in' ]
178
179 for k, v in body.items():
180 if not k in accepted_keys:
181 print("OP '{}' has invalid body kew {}".format(op, k), file=sys.stderr)
182 sys.exit(1)
183
184 self.body += "\n sqe->{key} = {value};".format(key=k, value=v)
185
186
187 def args(self):
188 param_a = self.params.split(',')
189 args_a = [p.replace('*', ' ').split()[-1] for p in param_a]
190 for a in args_a:
191 if '*' in a:
192 print("OP '{}' has invalid * in argument {}".format(self.op, a), file=sys.stderr)
193 sys.exit(1)
194
195 return ', '.join(args_a)
196
197AsyncTemplate = """inline void async_{name}(io_future_t & future, {params}, int submit_flags, io_cancellation * cancellation, io_context * context) {{
198 #if !defined(CFA_HAVE_LINUX_IO_URING_H) || !defined(CFA_HAVE_IORING_OP_{op})
199 ssize_t res = {name}({args});
200 if (res >= 0) {{
201 fulfil(future, res);
202 }}
203 else {{
204 fulfil(future, -errno);
205 }}
206 #else
207 // we don't support LINK yet
208 if( 0 != (submit_flags & LINK_FLAGS) ) {{
209 errno = ENOTSUP; return -1;
210 }}
211
212 if( !context ) {{
213 context = __get_io_context();
214 }}
215 if(cancellation) {{
216 cancellation->target = (__u64)(uintptr_t)&future;
217 }}
218
219 __u8 sflags = REGULAR_FLAGS & submit_flags;
220 struct __io_data & ring = *context->thrd.ring;
221
222 __u32 idx;
223 struct io_uring_sqe * sqe;
224 [sqe, idx] = __submit_alloc( ring, (__u64)(uintptr_t)&future );
225
226 sqe->__pad2[0] = sqe->__pad2[1] = sqe->__pad2[2] = 0;
227 sqe->opcode = IORING_OP_{op};
228 sqe->flags = sflags;{body}
229
230 verify( sqe->user_data == (__u64)(uintptr_t)&future );
231 __submit( context, idx );
232 #endif
233}}"""
234
235SyncTemplate = """{ret} cfa_{name}({params}, int submit_flags, Duration timeout, io_cancellation * cancellation, io_context * context) {{
236 if( timeout >= 0 ) {{
237 errno = ENOTSUP;
238 return -1;
239 }}
240 io_future_t future;
241
242 async_{name}( future, {args}, submit_flags, cancellation, context );
243
244 wait( future );
245 if( future.result < 0 ) {{
246 errno = -future.result;
247 return -1;
248 }}
249 return future.result;
250}}"""
251
252calls = [
253 # CFA_HAVE_IORING_OP_READV
254 Call('READV', 'ssize_t preadv2(int fd, const struct iovec *iov, int iovcnt, off_t offset, int flags)', {
255 'fd' : 'fd',
256 'off' : 'offset',
257 'addr': '(__u64)iov',
258 'len' : 'iovcnt',
259 }, define = 'CFA_HAVE_PREADV2'),
260 # CFA_HAVE_IORING_OP_WRITEV
261 Call('WRITEV', 'ssize_t pwritev2(int fd, const struct iovec *iov, int iovcnt, off_t offset, int flags)', {
262 'fd' : 'fd',
263 'off' : 'offset',
264 'addr': '(__u64)iov',
265 'len' : 'iovcnt'
266 }, define = 'CFA_HAVE_PWRITEV2'),
267 # CFA_HAVE_IORING_OP_FSYNC
268 Call('FSYNC', 'int fsync(int fd)', {
269 'fd': 'fd'
270 }),
271 # CFA_HAVE_IORING_OP_EPOLL_CTL
272 Call('EPOLL_CTL', 'int epoll_ctl(int epfd, int op, int fd, struct epoll_event *event)', {
273 'fd': 'epfd',
274 'addr': 'fd',
275 'len': 'op',
276 'off': '(__u64)event'
277 }),
278 # CFA_HAVE_IORING_OP_SYNC_FILE_RANGE
279 Call('SYNC_FILE_RANGE', 'int sync_file_range(int fd, off64_t offset, off64_t nbytes, unsigned int flags)', {
280 'fd': 'fd',
281 'off': 'offset',
282 'len': 'nbytes',
283 'sync_range_flags': 'flags'
284 }),
285 # CFA_HAVE_IORING_OP_SENDMSG
286 Call('SENDMSG', 'ssize_t sendmsg(int sockfd, const struct msghdr *msg, int flags)', {
287 'fd': 'sockfd',
288 'addr': '(__u64)(struct msghdr *)msg',
289 'len': '1',
290 'msg_flags': 'flags'
291 }),
292 # CFA_HAVE_IORING_OP_RECVMSG
293 Call('RECVMSG', 'ssize_t recvmsg(int sockfd, struct msghdr *msg, int flags)', {
294 'fd': 'sockfd',
295 'addr': '(__u64)(struct msghdr *)msg',
296 'len': '1',
297 'msg_flags': 'flags'
298 }),
299 # CFA_HAVE_IORING_OP_SEND
300 Call('SEND', 'ssize_t send(int sockfd, const void *buf, size_t len, int flags)', {
301 'fd': 'sockfd',
302 'addr': '(__u64)buf',
303 'len': 'len',
304 'msg_flags': 'flags'
305 }),
306 # CFA_HAVE_IORING_OP_RECV
307 Call('RECV', 'ssize_t recv(int sockfd, void *buf, size_t len, int flags)', {
308 'fd': 'sockfd',
309 'addr': '(__u64)buf',
310 'len': 'len',
311 'msg_flags': 'flags'
312 }),
313 # CFA_HAVE_IORING_OP_ACCEPT
314 Call('ACCEPT4', 'int accept4(int sockfd, struct sockaddr *addr, socklen_t *addrlen, int flags)', {
315 'fd': 'sockfd',
316 'addr': 'addr',
317 'addr2': 'addrlen',
318 'accept_flags': 'flags'
319 }),
320 # CFA_HAVE_IORING_OP_CONNECT
321 Call('CONNECT', 'int connect(int sockfd, const struct sockaddr *addr, socklen_t addrlen)', {
322 'fd': 'sockfd',
323 'addr': '(__u64)addr',
324 'off': 'addrlen'
325 }),
326 # CFA_HAVE_IORING_OP_FALLOCATE
327 Call('FALLOCATE', 'int fallocate(int fd, int mode, off_t offset, off_t len)', {
328 'fd': 'fd',
329 'addr': '(__u64)len',
330 'len': 'mode',
331 'off': 'offset'
332 }),
333 # CFA_HAVE_IORING_OP_FADVISE
334 Call('FADVISE', 'int posix_fadvise(int fd, off_t offset, off_t len, int advice)', {
335 'fd': 'fd',
336 'off': 'offset',
337 'len': 'len',
338 'fadvise_advice': 'advice'
339 }),
340 # CFA_HAVE_IORING_OP_MADVISE
341 Call('MADVISE', 'int madvise(void *addr, size_t length, int advice)', {
342 'addr': '(__u64)addr',
343 'len': 'length',
344 'fadvise_advice': 'advice'
345 }),
346 # CFA_HAVE_IORING_OP_OPENAT
347 Call('OPENAT', 'int openat(int dirfd, const char *pathname, int flags, mode_t mode)', {
348 'fd': 'dirfd',
349 'addr': '(__u64)pathname',
350 'len': 'mode',
351 'open_flags': 'flags;'
352 }),
353 # CFA_HAVE_IORING_OP_OPENAT2
354 Call('OPENAT2', 'int openat2(int dirfd, const char *pathname, struct open_how * how, size_t size)', {
355 'fd': 'dirfd',
356 'addr': 'pathname',
357 'len': 'sizeof(*how)',
358 'off': '(__u64)how',
359 }, define = 'CFA_HAVE_OPENAT2'),
360 # CFA_HAVE_IORING_OP_CLOSE
361 Call('CLOSE', 'int close(int fd)', {
362 'fd': 'fd'
363 }),
364 # CFA_HAVE_IORING_OP_STATX
365 Call('STATX', 'int statx(int dirfd, const char *pathname, int flags, unsigned int mask, struct statx *statxbuf)', {
366 'fd': 'dirfd',
367 'off': '(__u64)statxbuf',
368 'addr': 'pathname',
369 'len': 'mask',
370 'statx_flags': 'flags'
371 }, define = 'CFA_HAVE_STATX'),
372 # CFA_HAVE_IORING_OP_READ
373 Call('READ', 'ssize_t read(int fd, void * buf, size_t count)', {
374 'fd': 'fd',
375 'addr': '(__u64)buf',
376 'len': 'count'
377 }),
378 # CFA_HAVE_IORING_OP_WRITE
379 Call('WRITE', 'ssize_t write(int fd, void * buf, size_t count)', {
380 'fd': 'fd',
381 'addr': '(__u64)buf',
382 'len': 'count'
383 }),
384 # CFA_HAVE_IORING_OP_SPLICE
385 Call('SPLICE', 'ssize_t splice(int fd_in, loff_t *off_in, int fd_out, loff_t *off_out, size_t len, unsigned int flags)', {
386 'splice_fd_in': 'fd_in',
387 'splice_off_in': 'off_in ? (__u64)*off_in : (__u64)-1',
388 'fd': 'fd_out',
389 'off': 'off_out ? (__u64)*off_out : (__u64)-1',
390 'len': 'len',
391 'splice_flags': 'flags'
392 }),
393 # CFA_HAVE_IORING_OP_TEE
394 Call('TEE', 'ssize_t tee(int fd_in, int fd_out, size_t len, unsigned int flags)', {
395 'splice_fd_in': 'fd_in',
396 'fd': 'fd_out',
397 'len': 'len',
398 'splice_flags': 'flags'
399 })
400]
401
402print("//----------")
403print("// synchronous calls")
404for c in calls:
405 if c.define:
406 print("""#if defined({define})
407 {ret} cfa_{name}({params}, int submit_flags, Duration timeout, io_cancellation * cancellation, io_context * context);
408#endif""".format(define=c.define,ret=c.ret, name=c.name, params=c.params))
409 else:
410 print("{ret} cfa_{name}({params}, int submit_flags, Duration timeout, io_cancellation * cancellation, io_context * context);"
411 .format(ret=c.ret, name=c.name, params=c.params))
412
413print("\n//----------")
414print("// asynchronous calls")
415for c in calls:
416 if c.define:
417 print("""#if defined({define})
418 void async_{name}(io_future_t & future, {params}, int submit_flags, io_cancellation * cancellation, io_context * context);
419#endif""".format(define=c.define,name=c.name, params=c.params))
420 else:
421 print("void async_{name}(io_future_t & future, {params}, int submit_flags, io_cancellation * cancellation, io_context * context);"
422 .format(name=c.name, params=c.params))
423print("\n")
424
425for c in calls:
426 print("//-----------------------------------------------------------------------------")
427 print("// {}".format(c.name))
428 Async = AsyncTemplate.format(
429 name = c.name,
430 ret = c.ret,
431 params = c.params,
432 args = c.args(),
433 op = c.op,
434 body = c.body
435
436 )
437 Sync = SyncTemplate.format(
438 name = c.name,
439 ret = c.ret,
440 params = c.params,
441 args = c.args()
442 )
443
444 if c.define:
445 print("""#if defined({})
446 //----------
447 // asynchronous call
448 {}
449
450 //----------
451 // synchronous call
452 {}
453#endif
454""".format(c.define, "\n\t".join( Async.splitlines() ), "\n\t".join( Sync.splitlines() )))
455 else :
456 print("""//----------
457// asynchronous call
458{}
459
460//----------
461// synchronous call
462{}
463""".format(Async, Sync))
464
465print("""
466//-----------------------------------------------------------------------------
467// Check if a function is has asynchronous
468bool has_user_level_blocking( fptr_t func ) {
469 #if defined(CFA_HAVE_LINUX_IO_URING_H)""")
470
471for c in calls:
472 if c.define:
473 print(""" #if defined({define})
474 if( /*func == (fptr_t)preadv2 || */
475 func == (fptr_t)cfa_{name} ||
476 func == (fptr_t)async_{name} ) {{
477 #if defined(CFA_HAVE_IORING_OP_{op})
478 return true;
479 #else
480 return false;
481 #endif
482 }}
483 #endif""".format(define=c.define, name=c.name, op=c.op))
484 else:
485 print(""" if( /*func == (fptr_t)preadv2 || */
486 func == (fptr_t)cfa_{name} ||
487 func == (fptr_t)async_{name} ) {{
488 #if defined(CFA_HAVE_IORING_OP_{op})
489 return true;
490 #else
491 return false;
492 #endif
493 }}""".format(name=c.name, op=c.op))
494
495print(""" #endif
496
497 return false;
498}""")
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