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1
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2 /*
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3 * Copyright (C) Igor Sysoev
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4 */
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5
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6
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7 #include <ngx_config.h>
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8 #include <ngx_core.h>
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9
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10
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11 /* FreeBSD 3.0 at least */
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10
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12 char ngx_freebsd_kern_ostype[16];
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13 char ngx_freebsd_kern_osrelease[128];
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0
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14 int ngx_freebsd_kern_osreldate;
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15 int ngx_freebsd_hw_ncpu;
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16 int ngx_freebsd_net_inet_tcp_sendspace;
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17
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18 /* FreeBSD 4.9 */
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19 int ngx_freebsd_machdep_hlt_logical_cpus;
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20
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21 /* FreeBSD 5.0 */
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22 int ngx_freebsd_kern_ipc_zero_copy_send;
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23
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24
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25 ngx_uint_t ngx_freebsd_sendfile_nbytes_bug;
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26 ngx_uint_t ngx_freebsd_use_tcp_nopush;
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27
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28
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29 ngx_os_io_t ngx_os_io = {
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30 ngx_unix_recv,
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31 ngx_readv_chain,
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32 ngx_unix_send,
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18
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33 #if (NGX_HAVE_SENDFILE)
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0
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34 ngx_freebsd_sendfile_chain,
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35 NGX_IO_SENDFILE
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36 #else
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37 ngx_writev_chain,
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38 0
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39 #endif
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40 };
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41
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42
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43 typedef struct {
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44 char *name;
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45 int *value;
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46 size_t size;
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47 ngx_uint_t exists;
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48 } sysctl_t;
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49
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50
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51 sysctl_t sysctls[] = {
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52 { "hw.ncpu",
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53 &ngx_freebsd_hw_ncpu,
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54 sizeof(int), 0 },
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55
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56 { "machdep.hlt_logical_cpus",
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57 &ngx_freebsd_machdep_hlt_logical_cpus,
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58 sizeof(int), 0 },
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59
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60 { "net.inet.tcp.sendspace",
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61 &ngx_freebsd_net_inet_tcp_sendspace,
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62 sizeof(int), 0 },
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63
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64 { "kern.ipc.zero_copy.send",
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65 &ngx_freebsd_kern_ipc_zero_copy_send,
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66 sizeof(int), 0 },
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67
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68 { NULL, NULL, 0, 0 }
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69 };
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70
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71
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72 void ngx_debug_init()
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73 {
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74 #if (NGX_DEBUG && !NGX_NO_DEBUG_MALLOC)
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75
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76 #if __FreeBSD_version >= 500014
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77 _malloc_options = "J";
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78 #else
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79 malloc_options = "J";
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80 #endif
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81
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82 #endif
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83 }
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84
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85
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86 ngx_int_t ngx_os_init(ngx_log_t *log)
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87 {
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88 int version;
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89 size_t size;
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90 ngx_err_t err;
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91 ngx_uint_t i;
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92
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93 size = sizeof(ngx_freebsd_kern_ostype);
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94 if (sysctlbyname("kern.ostype",
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95 ngx_freebsd_kern_ostype, &size, NULL, 0) == -1) {
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96 ngx_log_error(NGX_LOG_ALERT, log, ngx_errno,
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97 "sysctlbyname(kern.ostype) failed");
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10
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98
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99 if (ngx_errno != NGX_ENOMEM) {
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100 return NGX_ERROR;
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101 }
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102
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103 ngx_freebsd_kern_ostype[size - 1] = '\0';
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0
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104 }
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105
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106 size = sizeof(ngx_freebsd_kern_osrelease);
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107 if (sysctlbyname("kern.osrelease",
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108 ngx_freebsd_kern_osrelease, &size, NULL, 0) == -1) {
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109 ngx_log_error(NGX_LOG_ALERT, log, ngx_errno,
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110 "sysctlbyname(kern.osrelease) failed");
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10
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111
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112 if (ngx_errno != NGX_ENOMEM) {
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113 return NGX_ERROR;
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114 }
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115
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116 ngx_freebsd_kern_osrelease[size - 1] = '\0';
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0
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117 }
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118
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119
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120 size = sizeof(int);
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121 if (sysctlbyname("kern.osreldate",
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122 &ngx_freebsd_kern_osreldate, &size, NULL, 0) == -1) {
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123 ngx_log_error(NGX_LOG_ALERT, log, ngx_errno,
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124 "sysctlbyname(kern.osreldate) failed");
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125 return NGX_ERROR;
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126 }
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127
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128 version = ngx_freebsd_kern_osreldate;
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129
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130
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18
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131 #if (NGX_HAVE_SENDFILE)
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0
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132
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133 /*
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134 * The determination of the sendfile() "nbytes bug" is complex enough.
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135 * There are two sendfile() syscalls: a new #393 has no bug while
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136 * an old #336 has the bug in some versions and has not in others.
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137 * Besides libc_r wrapper also emulates the bug in some versions.
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138 * There is no way to say exactly if syscall #336 in FreeBSD circa 4.6
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139 * has the bug. We use the algorithm that is correct at least for
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140 * RELEASEs and for syscalls only (not libc_r wrapper).
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141 *
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142 * 4.6.1-RELEASE and below have the bug
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143 * 4.6.2-RELEASE and above have the new syscall
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144 *
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145 * We detect the new sendfile() syscall available at the compile time
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146 * to allow an old binary to run correctly on an updated FreeBSD system.
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147 */
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148
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149 #if (__FreeBSD__ == 4 && __FreeBSD_version >= 460102) \
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150 || __FreeBSD_version == 460002 || __FreeBSD_version >= 500039
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151
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152 /* a new syscall without the bug */
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153
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154 ngx_freebsd_sendfile_nbytes_bug = 0;
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155
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156 #else
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157
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158 /* an old syscall that may have the bug */
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159
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160 ngx_freebsd_sendfile_nbytes_bug = 1;
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161
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162 #endif
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163
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18
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164 #endif /* NGX_HAVE_SENDFILE */
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0
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165
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166
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167 if ((version < 500000 && version >= 440003) || version >= 500017) {
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168 ngx_freebsd_use_tcp_nopush = 1;
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169 }
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170
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171
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172 for (i = 0; sysctls[i].name; i++) {
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173 *sysctls[i].value = 0;
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174 size = sysctls[i].size;
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175
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176 if (sysctlbyname(sysctls[i].name, sysctls[i].value, &size, NULL, 0)
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177 == 0)
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178 {
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179 sysctls[i].exists = 1;
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180 continue;
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181 }
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182
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183 err = ngx_errno;
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184
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185 if (err == NGX_ENOENT) {
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186 continue;
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187 }
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188
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189 #if 0
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190 if (sysctls[i].value == &ngx_freebsd_machdep_hlt_logical_cpus) {
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191 continue;
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192 }
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193 #endif
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194
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195 ngx_log_error(NGX_LOG_ALERT, log, err,
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196 "sysctlbyname(%s) failed", sysctls[i].name);
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197 return NGX_ERROR;
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198 }
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199
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200 if (ngx_freebsd_machdep_hlt_logical_cpus) {
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201 ngx_ncpu = ngx_freebsd_hw_ncpu / 2;
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202 } else {
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203 ngx_ncpu = ngx_freebsd_hw_ncpu;
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204 }
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205
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2
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206
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22
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207 ngx_tcp_nodelay_and_tcp_nopush = 1;
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208
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209
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0
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210 return ngx_posix_init(log);
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211 }
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212
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213
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214 void ngx_os_status(ngx_log_t *log)
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215 {
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216 ngx_uint_t i;
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217
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218 ngx_log_error(NGX_LOG_INFO, log, 0, "OS: %s %s",
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219 ngx_freebsd_kern_ostype, ngx_freebsd_kern_osrelease);
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220
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221 #ifdef __DragonFly_version
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222 ngx_log_error(NGX_LOG_INFO, log, 0,
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223 "kern.osreldate: %d, built on %d",
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224 ngx_freebsd_kern_osreldate, __DragonFly_version);
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225 #else
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226 ngx_log_error(NGX_LOG_INFO, log, 0,
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227 "kern.osreldate: %d, built on %d",
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228 ngx_freebsd_kern_osreldate, __FreeBSD_version);
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229 #endif
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230
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231 for (i = 0; sysctls[i].name; i++) {
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232 if (sysctls[i].exists) {
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233 ngx_log_error(NGX_LOG_INFO, log, 0, "%s: %d",
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234 sysctls[i].name, *sysctls[i].value);
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235 }
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236 }
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237
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2
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238
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0
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239 ngx_posix_status(log);
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240 }
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