source: libcfa/src/concurrency/iofwd.hfa @ 8bee858

pthread-emulation
Last change on this file since 8bee858 was 8bee858, checked in by Thierry Delisle <tdelisle@…>, 6 months ago

Changed io types to have trailing $ instead of leading

  • Property mode set to 100644
File size: 7.8 KB
Line 
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// iofwd.hfa --
8//
9// Author           : Thierry Delisle
10// Created On       : Thu Apr 23 17:31:00 2020
11// Last Modified By :
12// Last Modified On :
13// Update Count     :
14//
15
16#pragma once
17
18#include <unistd.h>
19extern "C" {
20        #include <asm/types.h>
21        #include <sys/stat.h> // needed for mode_t
22        #if CFA_HAVE_LINUX_IO_URING_H
23                #include <linux/io_uring.h>
24        #endif
25}
26#include "bits/defs.hfa"
27#include "kernel/fwd.hfa"
28#include "time.hfa"
29
30#if defined(CFA_HAVE_IOSQE_FIXED_FILE)
31        #define CFA_IO_FIXED_FD1 IOSQE_FIXED_FILE
32#endif
33#if defined(CFA_HAVE_SPLICE_F_FD_IN_FIXED)
34        #define CFA_IO_FIXED_FD2 SPLICE_F_FD_IN_FIXED
35#endif
36#if defined(CFA_HAVE_IOSQE_IO_DRAIN)
37        #define CFA_IO_DRAIN IOSQE_IO_DRAIN
38#endif
39#if defined(CFA_HAVE_IOSQE_ASYNC)
40        #define CFA_IO_ASYNC IOSQE_ASYNC
41#endif
42
43#if __OFF_T_MATCHES_OFF64_T
44        typedef __off64_t off_t;
45#else
46        typedef __off_t off_t;
47#endif
48typedef __off64_t off64_t;
49
50struct cluster;
51struct io_context$;
52
53struct iovec;
54struct msghdr;
55struct sockaddr;
56struct statx;
57struct epoll_event;
58
59struct io_uring_sqe;
60
61//-----------------------------------------------------------------------
62// IO user data
63struct io_future_t {
64        future_t self;
65        __s32 result;
66};
67
68static inline {
69        thread$ * fulfil( io_future_t & this, __s32 result, bool do_unpark = true ) {
70                this.result = result;
71                return fulfil(this.self, do_unpark);
72        }
73
74        // Wait for the future to be fulfilled
75        bool wait     ( io_future_t & this ) { return wait     (this.self); }
76        void reset    ( io_future_t & this ) { return reset    (this.self); }
77        bool available( io_future_t & this ) { return available(this.self); }
78        bool setup    ( io_future_t & this, oneshot & ctx ) { return setup  (this.self, ctx); }
79        bool retract  ( io_future_t & this, oneshot & ctx ) { return retract(this.self, ctx); }
80}
81
82//----------
83// underlying calls
84extern struct io_context$ * cfa_io_allocate(struct io_uring_sqe * out_sqes[], __u32 out_idxs[], __u32 want)  __attribute__((nonnull (1,2)));
85extern void cfa_io_submit( struct io_context$ * in_ctx, __u32 in_idxs[], __u32 have, bool lazy ) __attribute__((nonnull (1,2)));
86
87//----------
88// synchronous calls
89#if defined(CFA_HAVE_PREADV2)
90        extern ssize_t cfa_preadv2(int fd, const struct iovec *iov, int iovcnt, off_t offset, int flags, __u64 submit_flags);
91#endif
92#if defined(CFA_HAVE_PWRITEV2)
93        extern ssize_t cfa_pwritev2(int fd, const struct iovec *iov, int iovcnt, off_t offset, int flags, __u64 submit_flags);
94#endif
95extern int cfa_fsync(int fd, __u64 submit_flags);
96extern int cfa_epoll_ctl(int epfd, int op, int fd, struct epoll_event *event, __u64 submit_flags);
97extern int cfa_sync_file_range(int fd, off64_t offset, off64_t nbytes, unsigned int flags, __u64 submit_flags);
98extern  ssize_t cfa_sendmsg(int sockfd, const struct msghdr *msg, int flags, __u64 submit_flags);
99extern ssize_t cfa_recvmsg(int sockfd, struct msghdr *msg, int flags, __u64 submit_flags);
100extern ssize_t cfa_send(int sockfd, const void *buf, size_t len, int flags, __u64 submit_flags);
101extern ssize_t cfa_recv(int sockfd, void *buf, size_t len, int flags, __u64 submit_flags);
102extern int cfa_accept4(int sockfd, struct sockaddr *addr, socklen_t *addrlen, int flags, __u64 submit_flags);
103extern int cfa_connect(int sockfd, const struct sockaddr *addr, socklen_t addrlen, __u64 submit_flags);
104extern int cfa_fallocate(int fd, int mode, off_t offset, off_t len, __u64 submit_flags);
105extern int cfa_posix_fadvise(int fd, off_t offset, off_t len, int advice, __u64 submit_flags);
106extern int cfa_madvise(void *addr, size_t length, int advice, __u64 submit_flags);
107extern int cfa_openat(int dirfd, const char *pathname, int flags, mode_t mode, __u64 submit_flags);
108#if defined(CFA_HAVE_OPENAT2)
109        extern int cfa_openat2(int dirfd, const char *pathname, struct open_how * how, size_t size, __u64 submit_flags);
110#endif
111extern int cfa_close(int fd, __u64 submit_flags);
112#if defined(CFA_HAVE_STATX)
113        extern int cfa_statx(int dirfd, const char *pathname, int flags, unsigned int mask, struct statx *statxbuf, __u64 submit_flags);
114#endif
115extern ssize_t cfa_read(int fd, void * buf, size_t count, __u64 submit_flags);
116extern ssize_t cfa_write(int fd, void * buf, size_t count, __u64 submit_flags);
117extern ssize_t cfa_splice(int fd_in, __off64_t *off_in, int fd_out, __off64_t *off_out, size_t len, unsigned int flags, __u64 submit_flags);
118extern ssize_t cfa_tee(int fd_in, int fd_out, size_t len, unsigned int flags, __u64 submit_flags);
119
120//----------
121// asynchronous calls
122#if defined(CFA_HAVE_PREADV2)
123        extern void async_preadv2(io_future_t & future, int fd, const struct iovec *iov, int iovcnt, off_t offset, int flags, __u64 submit_flags);
124#endif
125#if defined(CFA_HAVE_PWRITEV2)
126        extern void async_pwritev2(io_future_t & future, int fd, const struct iovec *iov, int iovcnt, off_t offset, int flags, __u64 submit_flags);
127#endif
128extern void async_fsync(io_future_t & future, int fd, __u64 submit_flags);
129extern void async_epoll_ctl(io_future_t & future, int epfd, int op, int fd, struct epoll_event *event, __u64 submit_flags);
130extern void async_sync_file_range(io_future_t & future, int fd, off64_t offset, off64_t nbytes, unsigned int flags, __u64 submit_flags);
131extern void async_sendmsg(io_future_t & future, int sockfd, const struct msghdr *msg, int flags, __u64 submit_flags);
132extern void async_recvmsg(io_future_t & future, int sockfd, struct msghdr *msg, int flags, __u64 submit_flags);
133extern void async_send(io_future_t & future, int sockfd, const void *buf, size_t len, int flags, __u64 submit_flags);
134extern void async_recv(io_future_t & future, int sockfd, void *buf, size_t len, int flags, __u64 submit_flags);
135extern void async_accept4(io_future_t & future, int sockfd, struct sockaddr *addr, socklen_t *addrlen, int flags, __u64 submit_flags);
136extern void async_connect(io_future_t & future, int sockfd, const struct sockaddr *addr, socklen_t addrlen, __u64 submit_flags);
137extern void async_fallocate(io_future_t & future, int fd, int mode, off_t offset, off_t len, __u64 submit_flags);
138extern void async_posix_fadvise(io_future_t & future, int fd, off_t offset, off_t len, int advice, __u64 submit_flags);
139extern void async_madvise(io_future_t & future, void *addr, size_t length, int advice, __u64 submit_flags);
140extern void async_openat(io_future_t & future, int dirfd, const char *pathname, int flags, mode_t mode, __u64 submit_flags);
141#if defined(CFA_HAVE_OPENAT2)
142        extern void async_openat2(io_future_t & future, int dirfd, const char *pathname, struct open_how * how, size_t size, __u64 submit_flags);
143#endif
144extern void async_close(io_future_t & future, int fd, __u64 submit_flags);
145#if defined(CFA_HAVE_STATX)
146        extern void async_statx(io_future_t & future, int dirfd, const char *pathname, int flags, unsigned int mask, struct statx *statxbuf, __u64 submit_flags);
147#endif
148void async_read(io_future_t & future, int fd, void * buf, size_t count, __u64 submit_flags);
149extern void async_write(io_future_t & future, int fd, void * buf, size_t count, __u64 submit_flags);
150extern void async_splice(io_future_t & future, int fd_in, __off64_t *off_in, int fd_out, __off64_t *off_out, size_t len, unsigned int flags, __u64 submit_flags);
151extern void async_tee(io_future_t & future, int fd_in, int fd_out, size_t len, unsigned int flags, __u64 submit_flags);
152
153
154//-----------------------------------------------------------------------------
155// Check if a function is blocks a only the user thread
156bool has_user_level_blocking( fptr_t func );
157
158#if CFA_HAVE_LINUX_IO_URING_H
159        static inline void zero_sqe(struct io_uring_sqe * sqe) {
160                sqe->flags = 0;
161                sqe->ioprio = 0;
162                sqe->fd = 0;
163                sqe->off = 0;
164                sqe->addr = 0;
165                sqe->len = 0;
166                sqe->fsync_flags = 0;
167                sqe->__pad2[0] = 0;
168                sqe->__pad2[1] = 0;
169                sqe->__pad2[2] = 0;
170                sqe->fd = 0;
171                sqe->off = 0;
172                sqe->addr = 0;
173                sqe->len = 0;
174        }
175#endif
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