[bb662027] | 1 | // |
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| 2 | // Cforall Version 1.0.0 Copyright (C) 2016 University of Waterloo |
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| 3 | // |
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| 4 | // The contents of this file are covered under the licence agreement in the |
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| 5 | // file "LICENCE" distributed with Cforall. |
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| 6 | // |
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| 7 | // clib/cfathread.cfa -- |
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| 8 | // |
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| 9 | // Author : Thierry Delisle |
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| 10 | // Created On : Tue Sep 22 15:31:20 2020 |
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| 11 | // Last Modified By : |
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| 12 | // Last Modified On : |
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| 13 | // Update Count : |
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| 14 | // |
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| 15 | |
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[bc4a433] | 16 | // #define EPOLL_FOR_SOCKETS |
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[4500e52] | 17 | |
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[a1538cd] | 18 | #include "fstream.hfa" |
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| 19 | #include "locks.hfa" |
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[bb662027] | 20 | #include "kernel.hfa" |
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[d971c8d] | 21 | #include "stats.hfa" |
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[bb662027] | 22 | #include "thread.hfa" |
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[a1538cd] | 23 | #include "time.hfa" |
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[75965a6] | 24 | #include "stdlib.hfa" |
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[bb662027] | 25 | |
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[a1538cd] | 26 | #include "cfathread.h" |
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| 27 | |
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[4500e52] | 28 | extern "C" { |
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| 29 | #include <string.h> |
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| 30 | #include <errno.h> |
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| 31 | } |
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| 32 | |
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[e84ab3d] | 33 | extern void ?{}(processor &, const char[], cluster &, thread$ *); |
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[a5e7233] | 34 | extern "C" { |
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| 35 | extern void __cfactx_invoke_thread(void (*main)(void *), void * this); |
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[4500e52] | 36 | extern int accept4(int sockfd, struct sockaddr *addr, socklen_t *addrlen, int flags); |
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[a5e7233] | 37 | } |
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| 38 | |
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[c457dc41] | 39 | extern Time __kernel_get_time(); |
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[4500e52] | 40 | extern unsigned register_proc_id( void ); |
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| 41 | |
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| 42 | //================================================================================ |
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| 43 | // Epoll support for sockets |
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| 44 | |
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| 45 | #if defined(EPOLL_FOR_SOCKETS) |
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| 46 | extern "C" { |
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| 47 | #include <sys/epoll.h> |
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| 48 | #include <sys/resource.h> |
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| 49 | } |
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| 50 | |
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| 51 | static pthread_t master_poller; |
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| 52 | static int master_epollfd = 0; |
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| 53 | static size_t poller_cnt = 0; |
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| 54 | static int * poller_fds = 0p; |
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| 55 | static struct leaf_poller * pollers = 0p; |
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| 56 | |
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| 57 | struct __attribute__((aligned)) fd_info_t { |
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| 58 | int pollid; |
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| 59 | size_t rearms; |
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| 60 | }; |
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| 61 | rlim_t fd_limit = 0; |
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| 62 | static fd_info_t * volatile * fd_map = 0p; |
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| 63 | |
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| 64 | void * master_epoll( __attribute__((unused)) void * args ) { |
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| 65 | unsigned id = register_proc_id(); |
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| 66 | |
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| 67 | enum { MAX_EVENTS = 5 }; |
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| 68 | struct epoll_event events[MAX_EVENTS]; |
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| 69 | for() { |
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| 70 | int ret = epoll_wait(master_epollfd, events, MAX_EVENTS, -1); |
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| 71 | if ( ret < 0 ) { |
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| 72 | abort | "Master epoll error: " | strerror(errno); |
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| 73 | } |
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| 74 | |
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| 75 | for(i; ret) { |
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| 76 | thread$ * thrd = (thread$ *)events[i].data.u64; |
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| 77 | unpark( thrd ); |
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| 78 | } |
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| 79 | } |
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| 80 | |
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| 81 | return 0p; |
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| 82 | } |
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| 83 | |
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| 84 | static inline int epoll_rearm(int epollfd, int fd, uint32_t event) { |
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| 85 | struct epoll_event eevent; |
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| 86 | eevent.events = event | EPOLLET | EPOLLONESHOT; |
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| 87 | eevent.data.u64 = (uint64_t)active_thread(); |
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| 88 | |
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| 89 | if(0 != epoll_ctl(epollfd, EPOLL_CTL_MOD, fd, &eevent)) |
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| 90 | { |
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| 91 | if(errno == ENOENT) return -1; |
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| 92 | abort | acquire | "epoll" | epollfd | "ctl rearm" | fd | "error: " | errno | strerror(errno); |
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| 93 | } |
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| 94 | |
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| 95 | park(); |
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| 96 | return 0; |
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| 97 | } |
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| 98 | |
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| 99 | thread leaf_poller { |
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| 100 | int epollfd; |
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| 101 | }; |
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| 102 | |
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| 103 | void ?{}(leaf_poller & this, int fd) { this.epollfd = fd; } |
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| 104 | |
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| 105 | void main(leaf_poller & this) { |
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| 106 | enum { MAX_EVENTS = 1024 }; |
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| 107 | struct epoll_event events[MAX_EVENTS]; |
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| 108 | const int max_retries = 5; |
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| 109 | int retries = max_retries; |
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| 110 | |
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| 111 | struct epoll_event event; |
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| 112 | event.events = EPOLLIN | EPOLLET | EPOLLONESHOT; |
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| 113 | event.data.u64 = (uint64_t)&(thread&)this; |
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| 114 | |
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| 115 | if(0 != epoll_ctl(master_epollfd, EPOLL_CTL_ADD, this.epollfd, &event)) |
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| 116 | { |
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| 117 | abort | "master epoll ctl add leaf: " | errno | strerror(errno); |
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| 118 | } |
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| 119 | |
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| 120 | park(); |
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| 121 | |
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| 122 | for() { |
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| 123 | yield(); |
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| 124 | int ret = epoll_wait(this.epollfd, events, MAX_EVENTS, 0); |
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| 125 | if ( ret < 0 ) { |
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| 126 | abort | "Leaf epoll error: " | errno | strerror(errno); |
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| 127 | } |
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| 128 | |
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| 129 | if(ret) { |
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| 130 | for(i; ret) { |
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| 131 | thread$ * thrd = (thread$ *)events[i].data.u64; |
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[75c7252] | 132 | unpark( thrd, UNPARK_REMOTE ); |
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[4500e52] | 133 | } |
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| 134 | } |
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| 135 | else if(0 >= --retries) { |
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| 136 | epoll_rearm(master_epollfd, this.epollfd, EPOLLIN); |
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| 137 | } |
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| 138 | } |
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| 139 | } |
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| 140 | |
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| 141 | void setup_epoll( void ) __attribute__(( constructor )); |
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| 142 | void setup_epoll( void ) { |
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| 143 | if(master_epollfd) abort | "Master epoll already setup"; |
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| 144 | |
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| 145 | master_epollfd = epoll_create1(0); |
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| 146 | if(master_epollfd == -1) { |
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| 147 | abort | "failed to create master epoll: " | errno | strerror(errno); |
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| 148 | } |
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| 149 | |
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| 150 | struct rlimit rlim; |
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| 151 | if(int ret = getrlimit(RLIMIT_NOFILE, &rlim); 0 != ret) { |
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| 152 | abort | "failed to get nofile limit: " | errno | strerror(errno); |
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| 153 | } |
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| 154 | |
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| 155 | fd_limit = rlim.rlim_cur; |
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| 156 | fd_map = alloc(fd_limit); |
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| 157 | for(i;fd_limit) { |
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| 158 | fd_map[i] = 0p; |
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| 159 | } |
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| 160 | |
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[75c7252] | 161 | poller_cnt = 2; |
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[4500e52] | 162 | poller_fds = alloc(poller_cnt); |
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| 163 | pollers = alloc(poller_cnt); |
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| 164 | for(i; poller_cnt) { |
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| 165 | poller_fds[i] = epoll_create1(0); |
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| 166 | if(poller_fds[i] == -1) { |
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| 167 | abort | "failed to create leaf epoll [" | i | "]: " | errno | strerror(errno); |
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| 168 | } |
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| 169 | |
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| 170 | (pollers[i]){ poller_fds[i] }; |
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| 171 | } |
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| 172 | |
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| 173 | pthread_attr_t attr; |
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[a7d696f] | 174 | if (int ret = real_pthread_attr_init(&attr); 0 != ret) { |
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[4500e52] | 175 | abort | "failed to create master epoll thread attr: " | ret | strerror(ret); |
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| 176 | } |
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| 177 | |
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[a7d696f] | 178 | if (int ret = real_pthread_create(&master_poller, &attr, master_epoll, 0p); 0 != ret) { |
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[4500e52] | 179 | abort | "failed to create master epoll thread: " | ret | strerror(ret); |
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| 180 | } |
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| 181 | } |
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| 182 | |
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| 183 | static inline int epoll_wait(int fd, uint32_t event) { |
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| 184 | if(fd_map[fd] >= 1p) { |
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| 185 | fd_map[fd]->rearms++; |
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| 186 | epoll_rearm(poller_fds[fd_map[fd]->pollid], fd, event); |
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| 187 | return 0; |
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| 188 | } |
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| 189 | |
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| 190 | for() { |
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| 191 | fd_info_t * expected = 0p; |
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| 192 | fd_info_t * sentinel = 1p; |
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| 193 | if(__atomic_compare_exchange_n( &(fd_map[fd]), &expected, sentinel, true, __ATOMIC_SEQ_CST, __ATOMIC_RELAXED)) { |
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| 194 | struct epoll_event eevent; |
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| 195 | eevent.events = event | EPOLLET | EPOLLONESHOT; |
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| 196 | eevent.data.u64 = (uint64_t)active_thread(); |
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| 197 | |
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[75965a6] | 198 | int id = prng() % poller_cnt; |
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[4500e52] | 199 | if(0 != epoll_ctl(poller_fds[id], EPOLL_CTL_ADD, fd, &eevent)) |
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| 200 | { |
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| 201 | abort | "epoll ctl add" | poller_fds[id] | fd | fd_map[fd] | expected | "error: " | errno | strerror(errno); |
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| 202 | } |
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| 203 | |
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| 204 | fd_info_t * ninfo = alloc(); |
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| 205 | ninfo->pollid = id; |
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| 206 | ninfo->rearms = 0; |
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| 207 | __atomic_store_n( &fd_map[fd], ninfo, __ATOMIC_SEQ_CST); |
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| 208 | |
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| 209 | park(); |
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| 210 | return 0; |
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| 211 | } |
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| 212 | |
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| 213 | if(expected >= 0) { |
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| 214 | fd_map[fd]->rearms++; |
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| 215 | epoll_rearm(poller_fds[fd_map[fd]->pollid], fd, event); |
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| 216 | return 0; |
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| 217 | } |
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| 218 | |
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| 219 | Pause(); |
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| 220 | } |
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| 221 | } |
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| 222 | #endif |
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[c457dc41] | 223 | |
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[a5e7233] | 224 | //================================================================================ |
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[4500e52] | 225 | // Thread run by the C Interface |
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[a5e7233] | 226 | |
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[a1538cd] | 227 | struct cfathread_object { |
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[e84ab3d] | 228 | thread$ self; |
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[a1538cd] | 229 | void * (*themain)( void * ); |
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| 230 | void * arg; |
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| 231 | void * ret; |
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[bb662027] | 232 | }; |
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[a1538cd] | 233 | void main(cfathread_object & this); |
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| 234 | void ^?{}(cfathread_object & mutex this); |
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| 235 | |
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[e84ab3d] | 236 | static inline thread$ * get_thread( cfathread_object & this ) { return &this.self; } |
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[a1538cd] | 237 | |
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| 238 | typedef ThreadCancelled(cfathread_object) cfathread_exception; |
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[c715e5f] | 239 | typedef vtable(ThreadCancelled(cfathread_object)) cfathread_vtable; |
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[a1538cd] | 240 | |
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| 241 | void defaultResumptionHandler(ThreadCancelled(cfathread_object) & except) { |
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| 242 | abort | "A thread was cancelled"; |
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| 243 | } |
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[bb662027] | 244 | |
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[a1538cd] | 245 | cfathread_vtable _cfathread_vtable_instance; |
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| 246 | |
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[8edbe40] | 247 | cfathread_vtable & const _default_vtable = _cfathread_vtable_instance; |
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| 248 | |
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[a1538cd] | 249 | cfathread_vtable const & get_exception_vtable(cfathread_exception *) { |
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| 250 | return _cfathread_vtable_instance; |
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| 251 | } |
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| 252 | |
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| 253 | static void ?{}( cfathread_object & this, cluster & cl, void *(*themain)( void * ), void * arg ) { |
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[bb662027] | 254 | this.themain = themain; |
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[a1538cd] | 255 | this.arg = arg; |
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[4150779] | 256 | (this.self){"C-thread", cl}; |
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[a1538cd] | 257 | __thrd_start(this, main); |
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[bb662027] | 258 | } |
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| 259 | |
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[a1538cd] | 260 | void ^?{}(cfathread_object & mutex this) { |
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| 261 | ^(this.self){}; |
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| 262 | } |
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| 263 | |
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| 264 | void main( cfathread_object & this ) { |
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| 265 | __attribute__((unused)) void * const thrd_obj = (void*)&this; |
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| 266 | __attribute__((unused)) void * const thrd_hdl = (void*)active_thread(); |
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| 267 | /* paranoid */ verify( thrd_obj == thrd_hdl ); |
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| 268 | |
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| 269 | this.ret = this.themain( this.arg ); |
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[bb662027] | 270 | } |
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| 271 | |
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[a5e7233] | 272 | //================================================================================ |
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| 273 | // Special Init Thread responsible for the initialization or processors |
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| 274 | struct __cfainit { |
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[e84ab3d] | 275 | thread$ self; |
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[a5e7233] | 276 | void (*init)( void * ); |
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| 277 | void * arg; |
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| 278 | }; |
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| 279 | void main(__cfainit & this); |
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| 280 | void ^?{}(__cfainit & mutex this); |
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| 281 | |
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[e84ab3d] | 282 | static inline thread$ * get_thread( __cfainit & this ) { return &this.self; } |
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[a5e7233] | 283 | |
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| 284 | typedef ThreadCancelled(__cfainit) __cfainit_exception; |
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[c715e5f] | 285 | typedef vtable(ThreadCancelled(__cfainit)) __cfainit_vtable; |
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[a5e7233] | 286 | |
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| 287 | void defaultResumptionHandler(ThreadCancelled(__cfainit) & except) { |
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| 288 | abort | "The init thread was cancelled"; |
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| 289 | } |
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| 290 | |
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| 291 | __cfainit_vtable ___cfainit_vtable_instance; |
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| 292 | |
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| 293 | __cfainit_vtable const & get_exception_vtable(__cfainit_exception *) { |
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| 294 | return ___cfainit_vtable_instance; |
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| 295 | } |
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| 296 | |
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| 297 | static void ?{}( __cfainit & this, void (*init)( void * ), void * arg ) { |
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| 298 | this.init = init; |
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| 299 | this.arg = arg; |
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[4150779] | 300 | (this.self){"Processir Init"}; |
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[a5e7233] | 301 | |
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| 302 | // Don't use __thrd_start! just prep the context manually |
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[e84ab3d] | 303 | thread$ * this_thrd = get_thread(this); |
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[a5e7233] | 304 | void (*main_p)(__cfainit &) = main; |
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| 305 | |
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| 306 | disable_interrupts(); |
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| 307 | __cfactx_start(main_p, get_coroutine(this), this, __cfactx_invoke_thread); |
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| 308 | |
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| 309 | this_thrd->context.[SP, FP] = this_thrd->self_cor.context.[SP, FP]; |
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| 310 | /* paranoid */ verify( this_thrd->context.SP ); |
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| 311 | |
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| 312 | this_thrd->state = Ready; |
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[a3821fa] | 313 | enable_interrupts(); |
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[a5e7233] | 314 | } |
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| 315 | |
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| 316 | void ^?{}(__cfainit & mutex this) { |
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| 317 | ^(this.self){}; |
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| 318 | } |
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| 319 | |
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| 320 | void main( __cfainit & this ) { |
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| 321 | __attribute__((unused)) void * const thrd_obj = (void*)&this; |
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| 322 | __attribute__((unused)) void * const thrd_hdl = (void*)active_thread(); |
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| 323 | /* paranoid */ verify( thrd_obj == thrd_hdl ); |
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| 324 | |
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| 325 | this.init( this.arg ); |
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| 326 | } |
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[bb662027] | 327 | |
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[c18bf9e] | 328 | #pragma GCC visibility push(default) |
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| 329 | |
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[a5e7233] | 330 | //================================================================================ |
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| 331 | // Main Api |
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[bb662027] | 332 | extern "C" { |
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[c18bf9e] | 333 | int cfathread_cluster_create(cfathread_cluster_t * cl) __attribute__((nonnull(1))) libcfa_public { |
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[a1538cd] | 334 | *cl = new(); |
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| 335 | return 0; |
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| 336 | } |
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| 337 | |
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[c18bf9e] | 338 | cfathread_cluster_t cfathread_cluster_self(void) libcfa_public { |
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[a1538cd] | 339 | return active_cluster(); |
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| 340 | } |
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| 341 | |
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[c18bf9e] | 342 | int cfathread_cluster_print_stats( cfathread_cluster_t cl ) libcfa_public { |
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[d971c8d] | 343 | #if !defined(__CFA_NO_STATISTICS__) |
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| 344 | print_stats_at_exit( *cl, CFA_STATS_READY_Q | CFA_STATS_IO ); |
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| 345 | print_stats_now( *cl, CFA_STATS_READY_Q | CFA_STATS_IO ); |
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| 346 | #endif |
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| 347 | return 0; |
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| 348 | } |
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| 349 | |
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[a1538cd] | 350 | int cfathread_cluster_add_worker(cfathread_cluster_t cl, pthread_t* tid, void (*init_routine) (void *), void * arg) { |
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[a5e7233] | 351 | __cfainit * it = 0p; |
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| 352 | if(init_routine) { |
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| 353 | it = alloc(); |
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| 354 | (*it){init_routine, arg}; |
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| 355 | } |
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[a1538cd] | 356 | processor * proc = alloc(); |
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[a5e7233] | 357 | (*proc){ "C-processor", *cl, get_thread(*it) }; |
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| 358 | |
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| 359 | // Wait for the init thread to return before continuing |
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| 360 | if(it) { |
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| 361 | ^(*it){}; |
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| 362 | free(it); |
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| 363 | } |
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| 364 | |
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[a1538cd] | 365 | if(tid) *tid = proc->kernel_thread; |
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| 366 | return 0; |
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| 367 | } |
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| 368 | |
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| 369 | int cfathread_cluster_pause (cfathread_cluster_t) { |
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| 370 | abort | "Pausing clusters is not supported"; |
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| 371 | exit(1); |
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| 372 | } |
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| 373 | |
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| 374 | int cfathread_cluster_resume(cfathread_cluster_t) { |
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| 375 | abort | "Resuming clusters is not supported"; |
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| 376 | exit(1); |
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| 377 | } |
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| 378 | |
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[bb662027] | 379 | //-------------------- |
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[a1538cd] | 380 | // Thread attributes |
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| 381 | int cfathread_attr_init(cfathread_attr_t *attr) __attribute__((nonnull (1))) { |
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| 382 | attr->cl = active_cluster(); |
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| 383 | return 0; |
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[bb662027] | 384 | } |
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| 385 | |
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[a1538cd] | 386 | //-------------------- |
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| 387 | // Thread |
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[9e27f69] | 388 | int cfathread_create( cfathread_t * handle, const cfathread_attr_t * attr, void *(*main)( void * ), void * arg ) __attribute__((nonnull (1))) { |
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[a1538cd] | 389 | cluster * cl = attr ? attr->cl : active_cluster(); |
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| 390 | cfathread_t thrd = alloc(); |
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| 391 | (*thrd){ *cl, main, arg }; |
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| 392 | *handle = thrd; |
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| 393 | return 0; |
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| 394 | } |
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| 395 | |
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| 396 | int cfathread_join( cfathread_t thrd, void ** retval ) { |
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| 397 | void * ret = join( *thrd ).ret; |
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[f03e11d] | 398 | ^( *thrd ){}; |
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| 399 | free(thrd); |
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[a1538cd] | 400 | if(retval) { |
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| 401 | *retval = ret; |
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| 402 | } |
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| 403 | return 0; |
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| 404 | } |
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| 405 | |
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[9e27f69] | 406 | int cfathread_get_errno(void) { |
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| 407 | return errno; |
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| 408 | } |
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| 409 | |
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[a1538cd] | 410 | cfathread_t cfathread_self(void) { |
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| 411 | return (cfathread_t)active_thread(); |
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| 412 | } |
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| 413 | |
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| 414 | int cfathread_usleep(useconds_t usecs) { |
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| 415 | sleep(usecs`us); |
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| 416 | return 0; |
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| 417 | } |
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| 418 | |
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| 419 | int cfathread_sleep(unsigned int secs) { |
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| 420 | sleep(secs`s); |
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| 421 | return 0; |
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[bb662027] | 422 | } |
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| 423 | |
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| 424 | void cfathread_park( void ) { |
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[e235429] | 425 | park(); |
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[bb662027] | 426 | } |
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| 427 | |
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[a1538cd] | 428 | void cfathread_unpark( cfathread_t thrd ) { |
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[e235429] | 429 | unpark( *thrd ); |
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[bb662027] | 430 | } |
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| 431 | |
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| 432 | void cfathread_yield( void ) { |
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| 433 | yield(); |
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| 434 | } |
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| 435 | |
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[a1538cd] | 436 | typedef struct cfathread_mutex * cfathread_mutex_t; |
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| 437 | |
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| 438 | //-------------------- |
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| 439 | // Mutex |
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| 440 | struct cfathread_mutex { |
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[420b498] | 441 | linear_backoff_then_block_lock impl; |
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[a1538cd] | 442 | }; |
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| 443 | int cfathread_mutex_init(cfathread_mutex_t *restrict mut, const cfathread_mutexattr_t *restrict) __attribute__((nonnull (1))) { *mut = new(); return 0; } |
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| 444 | int cfathread_mutex_destroy(cfathread_mutex_t *mut) __attribute__((nonnull (1))) { delete( *mut ); return 0; } |
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[d27b6be] | 445 | int cfathread_mutex_lock (cfathread_mutex_t *mut) __attribute__((nonnull (1))) { lock( (*mut)->impl ); return 0; } |
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| 446 | int cfathread_mutex_unlock (cfathread_mutex_t *mut) __attribute__((nonnull (1))) { unlock( (*mut)->impl ); return 0; } |
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| 447 | int cfathread_mutex_trylock(cfathread_mutex_t *mut) __attribute__((nonnull (1))) { |
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| 448 | bool ret = try_lock( (*mut)->impl ); |
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| 449 | if( ret ) return 0; |
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| 450 | else return EBUSY; |
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| 451 | } |
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[a1538cd] | 452 | |
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| 453 | //-------------------- |
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| 454 | // Condition |
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| 455 | struct cfathread_condition { |
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[420b498] | 456 | condition_variable(linear_backoff_then_block_lock) impl; |
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[a1538cd] | 457 | }; |
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| 458 | int cfathread_cond_init(cfathread_cond_t *restrict cond, const cfathread_condattr_t *restrict) __attribute__((nonnull (1))) { *cond = new(); return 0; } |
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| 459 | int cfathread_cond_signal(cfathread_cond_t *cond) __attribute__((nonnull (1))) { notify_one( (*cond)->impl ); return 0; } |
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| 460 | int cfathread_cond_wait(cfathread_cond_t *restrict cond, cfathread_mutex_t *restrict mut) __attribute__((nonnull (1,2))) { wait( (*cond)->impl, (*mut)->impl ); return 0; } |
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| 461 | int cfathread_cond_timedwait(cfathread_cond_t *restrict cond, cfathread_mutex_t *restrict mut, const struct timespec *restrict abstime) __attribute__((nonnull (1,2,3))) { |
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| 462 | Time t = { *abstime }; |
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[c457dc41] | 463 | timespec curr; |
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| 464 | clock_gettime( CLOCK_REALTIME, &curr ); |
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| 465 | Time c = { curr }; |
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| 466 | if( wait( (*cond)->impl, (*mut)->impl, t - c ) ) { |
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[a1538cd] | 467 | return 0; |
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| 468 | } |
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| 469 | errno = ETIMEDOUT; |
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| 470 | return ETIMEDOUT; |
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| 471 | } |
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| 472 | } |
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| 473 | |
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| 474 | #include <iofwd.hfa> |
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| 475 | |
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| 476 | extern "C" { |
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| 477 | #include <unistd.h> |
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| 478 | #include <sys/types.h> |
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| 479 | #include <sys/socket.h> |
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| 480 | |
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[bb662027] | 481 | //-------------------- |
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[a1538cd] | 482 | // IO operations |
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| 483 | int cfathread_socket(int domain, int type, int protocol) { |
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[4500e52] | 484 | return socket(domain, type |
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| 485 | #if defined(EPOLL_FOR_SOCKETS) |
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| 486 | | SOCK_NONBLOCK |
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| 487 | #endif |
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| 488 | , protocol); |
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[a1538cd] | 489 | } |
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| 490 | int cfathread_bind(int socket, const struct sockaddr *address, socklen_t address_len) { |
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| 491 | return bind(socket, address, address_len); |
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| 492 | } |
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| 493 | |
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| 494 | int cfathread_listen(int socket, int backlog) { |
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| 495 | return listen(socket, backlog); |
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| 496 | } |
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| 497 | |
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| 498 | int cfathread_accept(int socket, struct sockaddr *restrict address, socklen_t *restrict address_len) { |
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[4500e52] | 499 | #if defined(EPOLL_FOR_SOCKETS) |
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| 500 | int ret; |
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| 501 | for() { |
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| 502 | yield(); |
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| 503 | ret = accept4(socket, address, address_len, SOCK_NONBLOCK); |
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| 504 | if(ret >= 0) break; |
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| 505 | if(errno != EAGAIN && errno != EWOULDBLOCK) break; |
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| 506 | |
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| 507 | epoll_wait(socket, EPOLLIN); |
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| 508 | } |
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| 509 | return ret; |
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| 510 | #else |
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| 511 | return cfa_accept4(socket, address, address_len, 0, CFA_IO_LAZY); |
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| 512 | #endif |
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[a1538cd] | 513 | } |
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| 514 | |
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| 515 | int cfathread_connect(int socket, const struct sockaddr *address, socklen_t address_len) { |
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[4500e52] | 516 | #if defined(EPOLL_FOR_SOCKETS) |
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| 517 | int ret; |
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| 518 | for() { |
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| 519 | ret = connect(socket, address, address_len); |
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| 520 | if(ret >= 0) break; |
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| 521 | if(errno != EAGAIN && errno != EWOULDBLOCK) break; |
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| 522 | |
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| 523 | epoll_wait(socket, EPOLLIN); |
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| 524 | } |
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| 525 | return ret; |
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| 526 | #else |
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| 527 | return cfa_connect(socket, address, address_len, CFA_IO_LAZY); |
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| 528 | #endif |
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[a1538cd] | 529 | } |
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| 530 | |
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| 531 | int cfathread_dup(int fildes) { |
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| 532 | return dup(fildes); |
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| 533 | } |
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[bb662027] | 534 | |
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[a1538cd] | 535 | int cfathread_close(int fildes) { |
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| 536 | return cfa_close(fildes, CFA_IO_LAZY); |
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[bb662027] | 537 | } |
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[a1538cd] | 538 | |
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| 539 | ssize_t cfathread_sendmsg(int socket, const struct msghdr *message, int flags) { |
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[4500e52] | 540 | #if defined(EPOLL_FOR_SOCKETS) |
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| 541 | ssize_t ret; |
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| 542 | __STATS__( false, io.ops.sockwrite++; ) |
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| 543 | for() { |
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| 544 | ret = sendmsg(socket, message, flags); |
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| 545 | if(ret >= 0) break; |
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| 546 | if(errno != EAGAIN && errno != EWOULDBLOCK) break; |
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| 547 | |
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| 548 | __STATS__( false, io.ops.epllwrite++; ) |
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| 549 | epoll_wait(socket, EPOLLOUT); |
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| 550 | } |
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| 551 | #else |
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| 552 | ssize_t ret = cfa_sendmsg(socket, message, flags, CFA_IO_LAZY); |
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| 553 | #endif |
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| 554 | return ret; |
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[a1538cd] | 555 | } |
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| 556 | |
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| 557 | ssize_t cfathread_write(int fildes, const void *buf, size_t nbyte) { |
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[86dc95d] | 558 | // Use send rather then write for socket since it's faster |
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[4500e52] | 559 | #if defined(EPOLL_FOR_SOCKETS) |
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| 560 | ssize_t ret; |
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| 561 | // __STATS__( false, io.ops.sockwrite++; ) |
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| 562 | for() { |
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| 563 | ret = send(fildes, buf, nbyte, 0); |
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| 564 | if(ret >= 0) break; |
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| 565 | if(errno != EAGAIN && errno != EWOULDBLOCK) break; |
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| 566 | |
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| 567 | // __STATS__( false, io.ops.epllwrite++; ) |
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| 568 | epoll_wait(fildes, EPOLLOUT); |
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| 569 | } |
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| 570 | #else |
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| 571 | ssize_t ret = cfa_send(fildes, buf, nbyte, 0, CFA_IO_LAZY); |
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| 572 | #endif |
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| 573 | return ret; |
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[a1538cd] | 574 | } |
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| 575 | |
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| 576 | ssize_t cfathread_recvfrom(int socket, void *restrict buffer, size_t length, int flags, struct sockaddr *restrict address, socklen_t *restrict address_len) { |
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| 577 | struct iovec iov; |
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| 578 | iov.iov_base = buffer; |
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| 579 | iov.iov_len = length; |
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| 580 | |
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| 581 | struct msghdr msg; |
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| 582 | msg.msg_name = address; |
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| 583 | msg.msg_namelen = address_len ? (socklen_t)*address_len : (socklen_t)0; |
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| 584 | msg.msg_iov = &iov; |
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| 585 | msg.msg_iovlen = 1; |
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| 586 | msg.msg_control = 0p; |
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| 587 | msg.msg_controllen = 0; |
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| 588 | |
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[4500e52] | 589 | #if defined(EPOLL_FOR_SOCKETS) |
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| 590 | ssize_t ret; |
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| 591 | yield(); |
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| 592 | for() { |
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| 593 | ret = recvmsg(socket, &msg, flags); |
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| 594 | if(ret >= 0) break; |
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| 595 | if(errno != EAGAIN && errno != EWOULDBLOCK) break; |
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| 596 | |
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| 597 | epoll_wait(socket, EPOLLIN); |
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| 598 | } |
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| 599 | #else |
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| 600 | ssize_t ret = cfa_recvmsg(socket, &msg, flags, CFA_IO_LAZY); |
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| 601 | #endif |
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[a1538cd] | 602 | |
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| 603 | if(address_len) *address_len = msg.msg_namelen; |
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| 604 | return ret; |
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| 605 | } |
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| 606 | |
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| 607 | ssize_t cfathread_read(int fildes, void *buf, size_t nbyte) { |
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[86dc95d] | 608 | // Use recv rather then read for socket since it's faster |
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[4500e52] | 609 | #if defined(EPOLL_FOR_SOCKETS) |
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| 610 | ssize_t ret; |
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| 611 | __STATS__( false, io.ops.sockread++; ) |
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| 612 | yield(); |
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| 613 | for() { |
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| 614 | ret = recv(fildes, buf, nbyte, 0); |
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| 615 | if(ret >= 0) break; |
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| 616 | if(errno != EAGAIN && errno != EWOULDBLOCK) break; |
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| 617 | |
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| 618 | __STATS__( false, io.ops.epllread++; ) |
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| 619 | epoll_wait(fildes, EPOLLIN); |
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| 620 | } |
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| 621 | #else |
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| 622 | ssize_t ret = cfa_recv(fildes, buf, nbyte, 0, CFA_IO_LAZY); |
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| 623 | #endif |
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| 624 | return ret; |
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[a1538cd] | 625 | } |
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| 626 | |
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[45444c3] | 627 | } |
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