1 | #define _GNU_SOURCE |
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2 | |
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3 | #include <errno.h> |
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4 | #include <stdio.h> |
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5 | #include <string.h> |
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6 | #include <unistd.h> |
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7 | extern "C" { |
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8 | #include <sched.h> |
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9 | #include <signal.h> |
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10 | #include <sys/socket.h> |
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11 | #include <netinet/in.h> |
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12 | } |
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13 | |
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14 | #include <fstream.hfa> |
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15 | #include <kernel.hfa> |
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16 | #include <iofwd.hfa> |
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17 | #include <stats.hfa> |
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18 | #include <time.hfa> |
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19 | #include <thread.hfa> |
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20 | |
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21 | #include "filecache.hfa" |
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22 | #include "options.hfa" |
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23 | #include "worker.hfa" |
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24 | |
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25 | extern void register_fixed_files( cluster &, int *, unsigned count ); |
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26 | |
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27 | Duration default_preemption() { |
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28 | return 0; |
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29 | } |
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30 | |
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31 | //============================================================================================= |
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32 | // Stats Printer |
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33 | //=============================================================================================' |
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34 | |
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35 | thread StatsPrinter {}; |
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36 | |
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37 | void ?{}( StatsPrinter & this, cluster & cl ) { |
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38 | ((thread&)this){ "Stats Printer Thread", cl }; |
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39 | } |
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40 | |
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41 | void ^?{}( StatsPrinter & mutex this ) {} |
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42 | |
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43 | void main(StatsPrinter & this) { |
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44 | LOOP: for() { |
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45 | waitfor( ^?{} : this) { |
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46 | break LOOP; |
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47 | } |
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48 | or else {} |
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49 | |
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50 | sleep(10`s); |
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51 | |
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52 | print_stats_now( *active_cluster(), CFA_STATS_READY_Q | CFA_STATS_IO ); |
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53 | } |
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54 | } |
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55 | |
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56 | //============================================================================================= |
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57 | // Globals |
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58 | //============================================================================================= |
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59 | struct ServerCluster { |
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60 | cluster self; |
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61 | processor * procs; |
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62 | // io_context * ctxs; |
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63 | StatsPrinter * prnt; |
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64 | |
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65 | }; |
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66 | |
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67 | void ?{}( ServerCluster & this ) { |
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68 | (this.self){ "Server Cluster", options.clopts.params }; |
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69 | |
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70 | cpu_set_t fullset; |
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71 | CPU_ZERO(&fullset); |
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72 | int ret = sched_getaffinity(getpid(), sizeof(fullset), &fullset); |
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73 | if( ret != 0 ) abort | "sched_getaffinity failed with" | errno | strerror( errno ); |
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74 | int cnt = CPU_COUNT(&fullset); |
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75 | |
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76 | this.procs = alloc(options.clopts.nprocs); |
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77 | for(i; options.clopts.nprocs) { |
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78 | (this.procs[i]){ "Benchmark Processor", this.self }; |
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79 | |
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80 | int c = 0; |
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81 | int n = 1 + (i % cnt); |
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82 | for(int j = 0; j < CPU_SETSIZE; j++) { |
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83 | if(CPU_ISSET(j, &fullset)) n--; |
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84 | if(n == 0) { |
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85 | c = j; |
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86 | break; |
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87 | } |
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88 | } |
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89 | cpu_set_t localset; |
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90 | CPU_ZERO(&localset); |
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91 | CPU_SET(c, &localset); |
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92 | ret = pthread_setaffinity_np(this.procs[i].kernel_thread, sizeof(localset), &localset); |
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93 | if( ret != 0 ) abort | "sched_getaffinity failed with" | ret | strerror( ret ); |
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94 | |
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95 | #if !defined(__CFA_NO_STATISTICS__) |
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96 | if( options.clopts.procstats ) { |
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97 | print_stats_at_exit( *this.procs, this.self.print_stats ); |
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98 | } |
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99 | if( options.clopts.viewhalts ) { |
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100 | print_halts( *this.procs ); |
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101 | } |
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102 | #endif |
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103 | } |
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104 | |
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105 | if(options.stats) { |
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106 | this.prnt = alloc(); |
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107 | (*this.prnt){ this.self }; |
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108 | } else { |
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109 | this.prnt = 0p; |
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110 | } |
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111 | |
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112 | #if !defined(__CFA_NO_STATISTICS__) |
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113 | print_stats_at_exit( this.self, CFA_STATS_READY_Q | CFA_STATS_IO ); |
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114 | #endif |
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115 | |
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116 | options.clopts.instance[options.clopts.cltr_cnt] = &this.self; |
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117 | options.clopts.cltr_cnt++; |
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118 | } |
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119 | |
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120 | void ^?{}( ServerCluster & this ) { |
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121 | delete(this.prnt); |
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122 | |
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123 | for(i; options.clopts.nprocs) { |
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124 | ^(this.procs[i]){}; |
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125 | } |
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126 | free(this.procs); |
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127 | |
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128 | ^(this.self){}; |
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129 | } |
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130 | |
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131 | extern void init_protocol(void); |
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132 | extern void deinit_protocol(void); |
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133 | |
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134 | //============================================================================================= |
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135 | // Main |
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136 | //=============================================================================================' |
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137 | int main( int argc, char * argv[] ) { |
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138 | __sighandler_t s = 1p; |
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139 | signal(SIGPIPE, s); |
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140 | |
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141 | //=================== |
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142 | // Parse args |
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143 | parse_options(argc, argv); |
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144 | |
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145 | //=================== |
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146 | // Open Files |
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147 | if( options.file_cache.path ) { |
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148 | sout | "Filling cache from" | options.file_cache.path; |
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149 | fill_cache( options.file_cache.path ); |
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150 | } |
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151 | |
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152 | //=================== |
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153 | // Open Socket |
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154 | sout | getpid() | ": Listening on port" | options.socket.port; |
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155 | int server_fd = socket(AF_INET, SOCK_STREAM, 0); |
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156 | if(server_fd < 0) { |
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157 | abort( "socket error: (%d) %s\n", (int)errno, strerror(errno) ); |
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158 | } |
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159 | |
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160 | int ret = 0; |
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161 | struct sockaddr_in address; |
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162 | int addrlen = sizeof(address); |
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163 | memset( (char *)&address, '\0' ); |
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164 | address.sin_family = AF_INET; |
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165 | address.sin_addr.s_addr = htonl(INADDR_ANY); |
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166 | address.sin_port = htons( options.socket.port ); |
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167 | |
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168 | int waited = 0; |
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169 | for() { |
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170 | int sockfd = server_fd; |
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171 | __CONST_SOCKADDR_ARG addr; |
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172 | addr.__sockaddr__ = (struct sockaddr *)&address; |
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173 | socklen_t addrlen = sizeof(address); |
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174 | ret = bind( sockfd, addr, addrlen ); |
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175 | if(ret < 0) { |
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176 | if(errno == EADDRINUSE) { |
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177 | if(waited == 0) { |
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178 | if(!options.interactive) abort | "Port already in use in non-interactive mode. Aborting"; |
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179 | sout | "Waiting for port"; |
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180 | } else { |
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181 | sout | "\r" | waited | nonl; |
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182 | flush( sout ); |
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183 | } |
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184 | waited ++; |
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185 | sleep( 1`s ); |
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186 | continue; |
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187 | } |
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188 | abort( "bind error: (%d) %s\n", (int)errno, strerror(errno) ); |
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189 | } |
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190 | break; |
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191 | } |
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192 | |
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193 | ret = listen( server_fd, options.socket.backlog ); |
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194 | if(ret < 0) { |
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195 | abort( "listen error: (%d) %s\n", (int)errno, strerror(errno) ); |
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196 | } |
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197 | |
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198 | //=================== |
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199 | // Run Server Cluster |
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200 | { |
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201 | int pipe_cnt = options.clopts.nworkers * 2; |
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202 | int pipe_off; |
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203 | int * fds; |
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204 | [fds, pipe_off] = filefds( pipe_cnt ); |
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205 | for(i; 0 ~ pipe_cnt ~ 2) { |
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206 | int ret = pipe(&fds[pipe_off + i]); |
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207 | if( ret < 0 ) { abort( "pipe error: (%d) %s\n", (int)errno, strerror(errno) ); } |
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208 | } |
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209 | |
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210 | // if(options.file_cache.path && options.file_cache.fixed_fds) { |
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211 | // register_fixed_files(cl, fds, pipe_off); |
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212 | // } |
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213 | |
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214 | { |
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215 | ServerCluster cl[options.clopts.nclusters]; |
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216 | |
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217 | init_protocol(); |
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218 | { |
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219 | Worker * workers = anew(options.clopts.nworkers); |
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220 | for(i; options.clopts.nworkers) { |
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221 | // if( options.file_cache.fixed_fds ) { |
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222 | // workers[i].pipe[0] = pipe_off + (i * 2) + 0; |
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223 | // workers[i].pipe[1] = pipe_off + (i * 2) + 1; |
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224 | // } |
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225 | // else |
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226 | { |
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227 | workers[i].pipe[0] = fds[pipe_off + (i * 2) + 0]; |
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228 | workers[i].pipe[1] = fds[pipe_off + (i * 2) + 1]; |
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229 | workers[i].sockfd = server_fd; |
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230 | workers[i].addr = (struct sockaddr *)&address; |
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231 | workers[i].addrlen = (socklen_t*)&addrlen; |
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232 | workers[i].flags = 0; |
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233 | } |
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234 | unpark( workers[i] ); |
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235 | } |
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236 | sout | options.clopts.nworkers | "workers started on" | options.clopts.nprocs | "processors /" | options.clopts.nclusters | "clusters"; |
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237 | for(i; options.clopts.nclusters) { |
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238 | sout | options.clopts.thrd_cnt[i] | nonl; |
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239 | } |
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240 | sout | nl; |
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241 | if(!options.interactive) park(); |
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242 | { |
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243 | char buffer[128]; |
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244 | for() { |
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245 | int ret = cfa_read(0, buffer, 128, 0); |
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246 | if(ret == 0) break; |
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247 | if(ret < 0) abort( "main read error: (%d) %s\n", (int)errno, strerror(errno) ); |
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248 | sout | "User wrote '" | "" | nonl; |
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249 | write(sout, buffer, ret - 1); |
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250 | sout | "'"; |
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251 | } |
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252 | |
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253 | sout | "Shutdown received"; |
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254 | } |
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255 | |
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256 | sout | "Notifying connections..." | nonl; flush( sout ); |
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257 | for(i; options.clopts.nworkers) { |
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258 | workers[i].done = true; |
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259 | } |
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260 | sout | "done"; |
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261 | |
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262 | sout | "Shutting down socket..." | nonl; flush( sout ); |
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263 | int ret = shutdown( server_fd, SHUT_RD ); |
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264 | if( ret < 0 ) { |
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265 | abort( "shutdown error: (%d) %s\n", (int)errno, strerror(errno) ); |
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266 | } |
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267 | sout | "done"; |
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268 | |
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269 | //=================== |
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270 | // Close Socket |
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271 | sout | "Closing Socket..." | nonl; flush( sout ); |
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272 | ret = close( server_fd ); |
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273 | if(ret < 0) { |
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274 | abort( "close socket error: (%d) %s\n", (int)errno, strerror(errno) ); |
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275 | } |
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276 | sout | "done"; |
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277 | |
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278 | sout | "Stopping connection threads..." | nonl; flush( sout ); |
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279 | adelete(workers); |
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280 | } |
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281 | sout | "done"; |
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282 | |
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283 | sout | "Stopping protocol threads..." | nonl; flush( sout ); |
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284 | deinit_protocol(); |
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285 | sout | "done"; |
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286 | |
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287 | sout | "Stopping processors/clusters..." | nonl; flush( sout ); |
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288 | } |
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289 | sout | "done"; |
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290 | |
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291 | sout | "Closing splice fds..." | nonl; flush( sout ); |
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292 | for(i; pipe_cnt) { |
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293 | ret = close( fds[pipe_off + i] ); |
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294 | if(ret < 0) { |
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295 | abort( "close pipe error: (%d) %s\n", (int)errno, strerror(errno) ); |
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296 | } |
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297 | } |
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298 | free(fds); |
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299 | sout | "done"; |
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300 | |
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301 | sout | "Stopping processors..." | nonl; flush( sout ); |
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302 | } |
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303 | sout | "done"; |
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304 | |
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305 | //=================== |
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306 | // Close Files |
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307 | if( options.file_cache.path ) { |
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308 | sout | "Closing open files..." | nonl; flush( sout ); |
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309 | close_cache(); |
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310 | sout | "done"; |
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311 | } |
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312 | } |
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