1 | #include "options.hfa" |
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2 | |
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3 | #define _GNU_SOURCE |
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4 | #define __USE_GNU |
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5 | extern "C" { |
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6 | #include <sys/types.h> |
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7 | #include <sys/stat.h> |
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8 | #include <fcntl.h> |
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9 | } |
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10 | |
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11 | #include <bitmanip.hfa> |
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12 | #include <fstream.hfa> |
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13 | #include <kernel.hfa> |
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14 | #include <parseargs.hfa> |
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15 | |
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16 | #include <stdlib.h> |
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17 | #include <string.h> |
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18 | |
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19 | Options options @= { |
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20 | false, // log |
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21 | |
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22 | { // file_cache |
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23 | 0, // path |
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24 | 0, // open_flags; |
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25 | 42u, // hash_seed; |
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26 | 0, // size; |
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27 | false, // list; |
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28 | false // fixed_fds |
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29 | }, |
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30 | |
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31 | { // socket |
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32 | 8080, // port |
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33 | 10, // backlog |
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34 | 1024 // buflen |
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35 | }, |
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36 | |
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37 | { // cluster |
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38 | 1, // nprocs; |
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39 | 1, // nworkers; |
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40 | {}, // params; |
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41 | false, // procstats |
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42 | false, // viewhalts |
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43 | 0, // instance; |
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44 | } |
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45 | }; |
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46 | |
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47 | void parse_options( int argc, char * argv[] ) { |
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48 | bool subthrd = false; |
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49 | bool eagrsub = false; |
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50 | bool fixedfd = false; |
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51 | bool sqkpoll = false; |
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52 | bool iokpoll = false; |
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53 | unsigned sublen = 16; |
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54 | unsigned nentries = 16; |
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55 | |
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56 | |
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57 | static cfa_option opt[] = { |
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58 | { 'p', "port", "Port the server will listen on", options.socket.port}, |
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59 | { 'c', "cpus", "Number of processors to use", options.clopts.nprocs}, |
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60 | { 't', "threads", "Number of worker threads to use", options.clopts.nworkers}, |
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61 | {'\0', "log", "Enable logs", options.log, parse_settrue}, |
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62 | {'\0', "accept-backlog", "Maximum number of pending accepts", options.socket.backlog}, |
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63 | {'\0', "request_len", "Maximum number of bytes in the http request, requests with more data will be answered with Http Code 414", options.socket.buflen}, |
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64 | {'\0', "seed", "seed to use for hashing", options.file_cache.hash_seed }, |
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65 | {'\0', "cache-size", "Size of the cache to use, if set to small, will uses closes power of 2", options.file_cache.size }, |
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66 | {'\0', "list-files", "List the files in the specified path and exit", options.file_cache.list, parse_settrue }, |
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67 | { 's', "submitthread", "If set, cluster uses polling thread to submit I/O", subthrd, parse_settrue }, |
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68 | { 'e', "eagersubmit", "If set, cluster submits I/O eagerly but still aggregates submits", eagrsub, parse_settrue}, |
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69 | { 'f', "fixed-fds", "If set, files are open eagerly and pre-registered with the cluster", fixedfd, parse_settrue}, |
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70 | { 'k', "kpollsubmit", "If set, cluster uses IORING_SETUP_SQPOLL, implies -f", sqkpoll, parse_settrue }, |
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71 | { 'i', "kpollcomplete", "If set, cluster uses IORING_SETUP_IOPOLL", iokpoll, parse_settrue }, |
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72 | {'\0', "submitlength", "Max number of submitions that can be submitted together", sublen }, |
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73 | {'\0', "numentries", "Number of I/O entries", nentries }, |
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74 | |
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75 | }; |
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76 | int opt_cnt = sizeof(opt) / sizeof(cfa_option); |
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77 | |
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78 | char **left; |
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79 | parse_args( argc, argv, opt, opt_cnt, "[OPTIONS]... [PATH]\ncforall http server", left ); |
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80 | |
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81 | if( !is_pow2(nentries) ) { |
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82 | unsigned v = nentries; |
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83 | v--; |
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84 | v |= v >> 1; |
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85 | v |= v >> 2; |
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86 | v |= v >> 4; |
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87 | v |= v >> 8; |
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88 | v |= v >> 16; |
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89 | v++; |
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90 | serr | "Warning: num_entries not a power of 2" | '(' | nentries | ')' | "raising to " | v; |
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91 | nentries = v; |
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92 | } |
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93 | options.clopts.params.num_entries = nentries; |
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94 | |
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95 | options.clopts.params.poller_submits = subthrd; |
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96 | options.clopts.params.eager_submits = eagrsub; |
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97 | |
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98 | if( fixedfd ) { |
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99 | options.file_cache.fixed_fds = true; |
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100 | } |
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101 | |
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102 | if( sqkpoll ) { |
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103 | options.clopts.params.poll_submit = true; |
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104 | options.file_cache.fixed_fds = true; |
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105 | } |
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106 | |
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107 | if( iokpoll ) { |
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108 | options.clopts.params.poll_complete = true; |
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109 | options.file_cache.open_flags |= O_DIRECT; |
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110 | } |
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111 | |
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112 | options.clopts.params.num_ready = sublen; |
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113 | |
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114 | if( left[0] == 0p ) { return; } |
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115 | |
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116 | const char * path = left[0]; |
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117 | left++; |
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118 | |
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119 | if( left[0] != 0p ) { |
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120 | serr | "Too many trailing arguments!" | '\'' | path | '\''; |
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121 | while(left[0] != 0p) { |
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122 | serr | " - " | left[0]; |
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123 | left++; |
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124 | } |
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125 | exit(EXIT_FAILURE); |
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126 | } |
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127 | |
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128 | options.file_cache.path = path; |
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129 | } |
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