[34d0a28] | 1 | #include <stdio.h> |
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| 2 | #include <stdlib.h> |
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| 3 | #include <string.h> |
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| 4 | |
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| 5 | #include <unistd.h> |
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| 6 | |
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| 7 | extern "C" { |
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| 8 | #include <sys/types.h> |
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| 9 | #include <sys/socket.h> |
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| 10 | #include <netinet/in.h> |
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| 11 | } |
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| 12 | |
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| 13 | #include <time.hfa> |
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| 14 | #include <thread.hfa> |
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| 15 | |
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| 16 | //---------- |
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| 17 | monitor Printer {}; |
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| 18 | |
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| 19 | void heartbeat( Printer & mutex ) { |
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| 20 | fprintf(stderr, "."); |
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| 21 | } |
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| 22 | |
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| 23 | void message( Printer & mutex, char * msg, size_t len ) { |
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| 24 | fprintf(stderr, "'%.*s'", len, msg); |
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| 25 | } |
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| 26 | |
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| 27 | void status( Printer & mutex, const char * st ) { |
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| 28 | fprintf(stderr, "%s\n", st); |
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| 29 | } |
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| 30 | |
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| 31 | void error( Printer & mutex, const char * msg, int error) { |
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| 32 | fprintf(stderr, "%s - %s\n", msg, strerror(error)); |
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| 33 | } |
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| 34 | |
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| 35 | Printer printer; |
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| 36 | |
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| 37 | //---------- |
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| 38 | thread HeartBeat {}; |
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| 39 | |
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| 40 | void ^?{}( HeartBeat & mutex ) {} |
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| 41 | |
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| 42 | void main( HeartBeat & this ) { |
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| 43 | while(true) { |
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| 44 | waitfor( ^?{} : this ) { break; } |
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| 45 | or else{ |
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| 46 | sleep( 5`s ); |
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| 47 | heartbeat( printer ); |
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| 48 | } |
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| 49 | } |
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| 50 | } |
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| 51 | |
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| 52 | //---------- |
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| 53 | extern ssize_t async_recvmsg(int sockfd, struct msghdr *msg, int flags); |
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| 54 | extern int async_accept4(int sockfd, struct sockaddr *addr, socklen_t *addrlen, int flags); |
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| 55 | extern int async_close(int fd); |
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| 56 | |
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| 57 | //---------- |
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| 58 | thread Server { int port; }; |
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| 59 | void main( Server & this ) { |
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| 60 | char data[256]; |
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| 61 | struct iovec iov = { data, 256 }; |
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| 62 | struct msghdr msg = { "", 0, &iov, 1, NULL, 0, 0 }; |
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| 63 | |
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| 64 | int sock = socket(AF_INET, SOCK_STREAM, 0); |
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| 65 | if(sock < 0) { |
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| 66 | error( printer, "socket", -sock); |
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| 67 | exit( EXIT_FAILURE ); |
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| 68 | } |
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| 69 | |
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| 70 | status( printer, "Socket created" ); |
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| 71 | |
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| 72 | struct sockaddr_in serv_addr; |
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| 73 | memset(&serv_addr, 0, sizeof(serv_addr)); |
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| 74 | serv_addr.sin_family = AF_INET; |
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| 75 | serv_addr.sin_addr.s_addr = INADDR_ANY; |
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| 76 | serv_addr.sin_port = htons(this.port); |
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| 77 | |
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| 78 | int ret = bind(sock, (struct sockaddr *) &serv_addr, sizeof(serv_addr)); |
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| 79 | if(ret < 0) { |
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| 80 | error( printer, "bind", -ret); |
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| 81 | exit( EXIT_FAILURE ); |
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| 82 | } |
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| 83 | |
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| 84 | status( printer, "Socket bound" ); |
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| 85 | |
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| 86 | listen(sock,1); |
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| 87 | |
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| 88 | struct sockaddr_in cli_addr; |
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| 89 | __socklen_t clilen = sizeof(cli_addr); |
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| 90 | int newsock = async_accept4(sock, (struct sockaddr *) &cli_addr, &clilen, 0); |
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| 91 | if (newsock < 0) { |
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| 92 | error( printer, "accept", -newsock); |
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| 93 | exit( EXIT_FAILURE ); |
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| 94 | } |
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| 95 | |
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| 96 | status( printer, "Socket accepted, looping" ); |
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| 97 | |
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| 98 | while(1) { |
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| 99 | int res = async_recvmsg(newsock, &msg, 0); |
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| 100 | if(res == 0) break; |
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| 101 | if(res < 0) { |
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| 102 | error( printer, "recvmsg", -res); |
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| 103 | exit( EXIT_FAILURE ); |
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| 104 | } |
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| 105 | |
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| 106 | message(printer, data, res); |
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| 107 | } |
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| 108 | |
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| 109 | ret = async_close(newsock); |
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| 110 | if(ret < 0) { |
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| 111 | error( printer, "close new", -ret); |
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| 112 | exit( EXIT_FAILURE ); |
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| 113 | } |
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| 114 | |
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| 115 | ret = async_close(sock); |
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| 116 | if(ret < 0) { |
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| 117 | error( printer, "close old", -ret); |
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| 118 | exit( EXIT_FAILURE ); |
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| 119 | } |
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| 120 | } |
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| 121 | |
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| 122 | //---------- |
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| 123 | int main(int argc, char * argv []) { |
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| 124 | if(argc != 2) { |
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| 125 | printf("usage: %s portnumber\n", argv[0]); |
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| 126 | exit( EXIT_FAILURE ); |
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| 127 | } |
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| 128 | int port = atoi(argv[1]); |
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| 129 | if(port < 1) { |
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| 130 | printf("Invalid port : %d (from %s)\n", port, argv[1]); |
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| 131 | exit( EXIT_FAILURE ); |
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| 132 | } |
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| 133 | |
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| 134 | HeartBeat heartbeat; |
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| 135 | Server server = { port }; |
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| 136 | // while(true); |
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| 137 | } |
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