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1
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2 /* Written by Walter Bright, Christopher E. Miller, and many others.
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3 * www.digitalmars.com
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4 * Placed into public domain.
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5 * Linux(R) is the registered trademark of Linus Torvalds in the U.S. and other
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6 * countries.
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7 */
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8
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9 module std.c.linux.linux;
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10
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11 public import std.c.linux.linuxextern;
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12 public import std.c.linux.pthread;
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13
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14 private import std.c.stdio;
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15
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16 alias int pid_t;
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17 alias int off_t;
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18 alias uint mode_t;
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19
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20 alias uint uid_t;
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21 alias uint gid_t;
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22
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23 static if (size_t.sizeof == 4)
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24 alias int ssize_t;
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25 else
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26 alias long ssize_t;
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27
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28 enum : int
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29 {
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30 SIGHUP = 1,
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31 SIGINT = 2,
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32 SIGQUIT = 3,
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33 SIGILL = 4,
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34 SIGTRAP = 5,
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35 SIGABRT = 6,
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36 SIGIOT = 6,
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37 SIGBUS = 7,
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38 SIGFPE = 8,
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39 SIGKILL = 9,
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40 SIGUSR1 = 10,
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41 SIGSEGV = 11,
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42 SIGUSR2 = 12,
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43 SIGPIPE = 13,
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44 SIGALRM = 14,
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45 SIGTERM = 15,
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46 SIGSTKFLT = 16,
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47 SIGCHLD = 17,
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48 SIGCONT = 18,
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49 SIGSTOP = 19,
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50 SIGTSTP = 20,
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51 SIGTTIN = 21,
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52 SIGTTOU = 22,
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53 SIGURG = 23,
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54 SIGXCPU = 24,
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55 SIGXFSZ = 25,
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56 SIGVTALRM = 26,
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57 SIGPROF = 27,
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58 SIGWINCH = 28,
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59 SIGPOLL = 29,
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60 SIGIO = 29,
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61 SIGPWR = 30,
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62 SIGSYS = 31,
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63 SIGUNUSED = 31,
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64 }
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65
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66 enum
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67 {
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68 O_RDONLY = 0,
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69 O_WRONLY = 1,
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70 O_RDWR = 2,
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71 O_CREAT = 0100,
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72 O_EXCL = 0200,
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73 O_TRUNC = 01000,
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74 O_APPEND = 02000,
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75 }
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76
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77 struct struct_stat // distinguish it from the stat() function
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78 {
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79 ulong st_dev; /// device
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80 ushort __pad1;
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81 uint st_ino; /// file serial number
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82 uint st_mode; /// file mode
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83 uint st_nlink; /// link count
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84 uint st_uid; /// user ID of file's owner
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85 uint st_gid; /// user ID of group's owner
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86 ulong st_rdev; /// if device then device number
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87 ushort __pad2;
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88 int st_size; /// file size in bytes
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89 int st_blksize; /// optimal I/O block size
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90 int st_blocks; /// number of allocated 512 byte blocks
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91 int st_atime;
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92 uint st_atimensec;
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93 int st_mtime;
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94 uint st_mtimensec;
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95 int st_ctime;
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96 uint st_ctimensec;
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97
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98 uint __unused4;
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99 uint __unused5;
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100 }
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101
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102 static assert(struct_stat.sizeof == 88);
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103
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104 enum : int
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105 {
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106 S_IFIFO = 0010000,
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107 S_IFCHR = 0020000,
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108 S_IFDIR = 0040000,
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109 S_IFBLK = 0060000,
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110 S_IFREG = 0100000,
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111 S_IFLNK = 0120000,
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112 S_IFSOCK = 0140000,
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113
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114 S_IFMT = 0170000,
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115
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116 S_IREAD = 0000400,
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117 S_IWRITE = 0000200,
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118 S_IEXEC = 0000100,
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119 }
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120
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121 extern (C)
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122 {
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123 int access(char*, int);
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124 int open(char*, int, ...);
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125 int read(int, void*, int);
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126 int write(int, void*, int);
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127 int close(int);
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128 int lseek(int, int, int);
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129 int fstat(int, struct_stat*);
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130 int lstat(char*, struct_stat*);
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131 int stat(char*, struct_stat*);
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132 int chdir(char*);
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133 int mkdir(char*, int);
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134 int rmdir(char*);
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135 char* getcwd(char*, int);
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136 int chmod(char*, mode_t);
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137 int fork();
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138 int dup(int);
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139 int dup2(int, int);
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140 int pipe(int[2]);
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141 pid_t wait(int*);
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142 int waitpid(pid_t, int*, int);
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143
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144 uint alarm(uint);
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145 char* basename(char*);
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146 //wint_t btowc(int);
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147 int chown(char*, uid_t, gid_t);
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148 int chroot(char*);
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149 size_t confstr(int, char*, size_t);
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150 int creat(char*, mode_t);
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151 char* ctermid(char*);
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152 int dirfd(DIR*);
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153 char* dirname(char*);
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154 int fattach(int, char*);
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155 int fchmod(int, mode_t);
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156 int fdatasync(int);
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157 int ffs(int);
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158 int fmtmsg(int, char*, int, char*, char*, char*);
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159 int fpathconf(int, int);
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160 int fseeko(FILE*, off_t, int);
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161 off_t ftello(FILE*);
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162
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163 extern char** environ;
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164 }
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165
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166 struct timeval
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167 {
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168 int tv_sec;
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169 int tv_usec;
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170 }
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171
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172 struct struct_timezone
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173 {
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174 int tz_minuteswest;
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175 int tz_dstime;
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176 }
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177
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178 struct tm
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179 {
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180 int tm_sec;
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181 int tm_min;
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182 int tm_hour;
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183 int tm_mday;
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184 int tm_mon;
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185 int tm_year;
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186 int tm_wday;
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187 int tm_yday;
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188 int tm_isdst;
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189 int tm_gmtoff;
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190 int tm_zone;
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191 }
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192
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193 extern (C)
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194 {
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195 int gettimeofday(timeval*, struct_timezone*);
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196 __time_t time(__time_t*);
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197 char* asctime(tm*);
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198 char* ctime(__time_t*);
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199 tm* gmtime(__time_t*);
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200 tm* localtime(__time_t*);
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201 __time_t mktime(tm*);
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202 char* asctime_r(tm* t, char* buf);
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203 char* ctime_r(__time_t* timep, char* buf);
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204 tm* gmtime_r(__time_t* timep, tm* result);
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205 tm* localtime_r(__time_t* timep, tm* result);
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206 }
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207
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208 /**************************************************************/
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209 // Memory mapping from <sys/mman.h> and <bits/mman.h>
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210
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211 enum
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212 {
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213 PROT_NONE = 0,
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214 PROT_READ = 1,
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215 PROT_WRITE = 2,
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216 PROT_EXEC = 4,
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217 }
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218
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219 // Memory mapping sharing types
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220
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221 enum
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222 { MAP_SHARED = 1,
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223 MAP_PRIVATE = 2,
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224 MAP_TYPE = 0x0F,
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225 MAP_FIXED = 0x10,
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226 MAP_FILE = 0,
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227 MAP_ANONYMOUS = 0x20,
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228 MAP_ANON = 0x20,
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229 MAP_GROWSDOWN = 0x100,
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230 MAP_DENYWRITE = 0x800,
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231 MAP_EXECUTABLE = 0x1000,
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232 MAP_LOCKED = 0x2000,
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233 MAP_NORESERVE = 0x4000,
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234 MAP_POPULATE = 0x8000,
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235 MAP_NONBLOCK = 0x10000,
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236 }
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237
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238 // Values for msync()
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239
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240 enum
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241 { MS_ASYNC = 1,
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242 MS_INVALIDATE = 2,
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243 MS_SYNC = 4,
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244 }
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245
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246 // Values for mlockall()
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247
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248 enum
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249 {
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250 MCL_CURRENT = 1,
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251 MCL_FUTURE = 2,
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252 }
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253
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254 // Values for mremap()
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255
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256 enum
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257 {
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258 MREMAP_MAYMOVE = 1,
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259 }
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260
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261 // Values for madvise
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262
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263 enum
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264 { MADV_NORMAL = 0,
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265 MADV_RANDOM = 1,
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266 MADV_SEQUENTIAL = 2,
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267 MADV_WILLNEED = 3,
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268 MADV_DONTNEED = 4,
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269 }
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270
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271 extern (C)
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272 {
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273 void* mmap(void*, size_t, int, int, int, off_t);
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274 const void* MAP_FAILED = cast(void*)-1;
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275
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276 int munmap(void*, size_t);
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277 int mprotect(void*, size_t, int);
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278 int msync(void*, size_t, int);
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279 int madvise(void*, size_t, int);
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280 int mlock(void*, size_t);
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281 int munlock(void*, size_t);
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282 int mlockall(int);
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283 int munlockall();
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284 void* mremap(void*, size_t, size_t, int);
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285 int mincore(void*, size_t, ubyte*);
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286 int remap_file_pages(void*, size_t, int, size_t, int);
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287 int shm_open(char*, int, int);
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288 int shm_unlink(char*);
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289 }
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290
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291 extern(C)
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292 {
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293
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294 enum
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295 {
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296 DT_UNKNOWN = 0,
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297 DT_FIFO = 1,
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298 DT_CHR = 2,
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299 DT_DIR = 4,
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300 DT_BLK = 6,
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301 DT_REG = 8,
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302 DT_LNK = 10,
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303 DT_SOCK = 12,
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304 DT_WHT = 14,
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305 }
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306
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307 struct dirent
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308 {
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309 int d_ino;
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310 off_t d_off;
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311 ushort d_reclen;
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312 ubyte d_type;
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313 char[256] d_name;
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314 }
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315
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316 struct DIR
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317 {
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318 // Managed by OS.
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319 }
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320
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321 DIR* opendir(char* name);
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322 int closedir(DIR* dir);
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323 dirent* readdir(DIR* dir);
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324 void rewinddir(DIR* dir);
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325 off_t telldir(DIR* dir);
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326 void seekdir(DIR* dir, off_t offset);
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327 }
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328
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329
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330 extern(C)
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331 {
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332 private import std.intrinsic;
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333
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334
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335 int select(int nfds, fd_set* readfds, fd_set* writefds, fd_set* errorfds, timeval* timeout);
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336 int fcntl(int s, int f, ...);
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337
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338
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339 enum
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340 {
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341 EINTR = 4,
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342 EINPROGRESS = 115,
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343 }
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344
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345
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346 const uint FD_SETSIZE = 1024;
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347 //const uint NFDBITS = 8 * int.sizeof; // DMD 0.110: 8 * (int).sizeof is not an expression
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348 const int NFDBITS = 32;
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349
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350
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351 struct fd_set
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352 {
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353 int[FD_SETSIZE / NFDBITS] fds_bits;
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354 alias fds_bits __fds_bits;
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355 }
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356
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357
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358 int FDELT(int d)
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359 {
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360 return d / NFDBITS;
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361 }
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362
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363
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364 int FDMASK(int d)
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365 {
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366 return 1 << (d % NFDBITS);
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367 }
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368
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369
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370 // Removes.
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371 void FD_CLR(int fd, fd_set* set)
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372 {
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373 btr(cast(uint*)&set.fds_bits.ptr[FDELT(fd)], cast(uint)(fd % NFDBITS));
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374 }
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375
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376
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377 // Tests.
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378 int FD_ISSET(int fd, fd_set* set)
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379 {
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380 return bt(cast(uint*)&set.fds_bits.ptr[FDELT(fd)], cast(uint)(fd % NFDBITS));
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381 }
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382
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383
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384 // Adds.
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385 void FD_SET(int fd, fd_set* set)
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386 {
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387 bts(cast(uint*)&set.fds_bits.ptr[FDELT(fd)], cast(uint)(fd % NFDBITS));
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388 }
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389
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390
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391 // Resets to zero.
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392 void FD_ZERO(fd_set* set)
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393 {
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394 set.fds_bits[] = 0;
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395 }
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396 }
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397
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398 extern (C)
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399 {
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400 /* From <dlfcn.h>
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401 * See http://www.opengroup.org/onlinepubs/007908799/xsh/dlsym.html
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402 */
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403
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404 const int RTLD_NOW = 0x00002; // Correct for Red Hat 8
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405
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406 void* dlopen(char* file, int mode);
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407 int dlclose(void* handle);
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408 void* dlsym(void* handle, char* name);
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409 char* dlerror();
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410 }
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411
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412 extern (C)
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413 {
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414 /* from <pwd.h>
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415 */
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416
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417 struct passwd
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418 {
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419 char *pw_name;
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420 char *pw_passwd;
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421 uid_t pw_uid;
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422 gid_t pw_gid;
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423 char *pw_gecos;
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424 char *pw_dir;
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425 char *pw_shell;
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426 }
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427
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428 const size_t _SIGSET_NWORDS = 1024 / (8 * uint.sizeof);
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429 struct sigset_t
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430 {
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431 uint[_SIGSET_NWORDS] __val;
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432 }
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433
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434 int getpwnam_r(char*, passwd*, void*, size_t, passwd**);
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435 passwd* getpwnam(char*);
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436 passwd* getpwuid(uid_t);
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437 int getpwuid_r(uid_t, passwd*, char*, size_t, passwd**);
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438 int kill(pid_t, int);
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439 int sem_close(sem_t*);
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440 int sigemptyset(sigset_t*);
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441 int sigfillset(sigset_t*);
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442 int sigismember(sigset_t*, int);
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443 int sigsuspend(sigset_t*);
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444 }
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445
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446 extern (C)
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447 {
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448 /* from semaphore.h
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449 */
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450
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451 struct sem_t
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452 {
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453 _pthread_fastlock __sem_lock;
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454 int __sem_value;
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455 void* __sem_waiting;
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456 }
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457
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458 int sem_init(sem_t*, int, uint);
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459 int sem_wait(sem_t*);
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460 int sem_trywait(sem_t*);
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461 int sem_post(sem_t*);
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462 int sem_getvalue(sem_t*, int*);
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463 int sem_destroy(sem_t*);
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464 }
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465
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466 extern (C)
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467 {
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468 /* from utime.h
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469 */
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470
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471 struct utimbuf
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472 {
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473 __time_t actime;
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474 __time_t modtime;
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475 }
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476
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477 int utime(char* filename, utimbuf* buf);
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478 }
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