1 | /* |
1 | /* |
2 | * libeio implementation |
2 | * libeio implementation |
3 | * |
3 | * |
4 | * Copyright (c) 2007,2008 Marc Alexander Lehmann <libeio@schmorp.de> |
4 | * Copyright (c) 2007,2008,2009,2010,2011,2012 Marc Alexander Lehmann <libeio@schmorp.de> |
5 | * All rights reserved. |
5 | * All rights reserved. |
6 | * |
6 | * |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
8 | * tion, are permitted provided that the following conditions are met: |
8 | * tion, are permitted provided that the following conditions are met: |
9 | * |
9 | * |
10 | * 1. Redistributions of source code must retain the above copyright notice, |
10 | * 1. Redistributions of source code must retain the above copyright notice, |
11 | * this list of conditions and the following disclaimer. |
11 | * this list of conditions and the following disclaimer. |
12 | * |
12 | * |
13 | * 2. Redistributions in binary form must reproduce the above copyright |
13 | * 2. Redistributions in binary form must reproduce the above copyright |
14 | * notice, this list of conditions and the following disclaimer in the |
14 | * notice, this list of conditions and the following disclaimer in the |
15 | * documentation and/or other materials provided with the distribution. |
15 | * documentation and/or other materials provided with the distribution. |
16 | * |
16 | * |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
18 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- |
18 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- |
19 | * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
19 | * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
20 | * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- |
20 | * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- |
21 | * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
21 | * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
… | |
… | |
35 | * and other provisions required by the GPL. If you do not delete the |
35 | * and other provisions required by the GPL. If you do not delete the |
36 | * provisions above, a recipient may use your version of this file under |
36 | * provisions above, a recipient may use your version of this file under |
37 | * either the BSD or the GPL. |
37 | * either the BSD or the GPL. |
38 | */ |
38 | */ |
39 | |
39 | |
|
|
40 | #ifndef _WIN32 |
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|
41 | # include "config.h" |
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|
42 | #endif |
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43 | |
40 | #include "eio.h" |
44 | #include "eio.h" |
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45 | #include "ecb.h" |
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46 | |
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47 | #ifdef EIO_STACKSIZE |
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48 | # define X_STACKSIZE EIO_STACKSIZE |
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49 | #endif |
41 | #include "xthread.h" |
50 | #include "xthread.h" |
42 | |
51 | |
43 | #include <errno.h> |
52 | #include <errno.h> |
44 | #include <stddef.h> |
53 | #include <stddef.h> |
45 | #include <stdlib.h> |
54 | #include <stdlib.h> |
… | |
… | |
49 | #include <sys/stat.h> |
58 | #include <sys/stat.h> |
50 | #include <limits.h> |
59 | #include <limits.h> |
51 | #include <fcntl.h> |
60 | #include <fcntl.h> |
52 | #include <assert.h> |
61 | #include <assert.h> |
53 | |
62 | |
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|
63 | /* intptr_t comes from unistd.h, says POSIX/UNIX/tradition */ |
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64 | /* intptr_t only comes from stdint.h, says idiot openbsd coder */ |
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65 | #if HAVE_STDINT_H |
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66 | # include <stdint.h> |
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67 | #endif |
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68 | |
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69 | #ifndef ECANCELED |
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70 | # define ECANCELED EDOM |
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71 | #endif |
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72 | #ifndef ELOOP |
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73 | # define ELOOP EDOM |
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74 | #endif |
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75 | |
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76 | #if !defined(ENOTSOCK) && defined(WSAENOTSOCK) |
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77 | # define ENOTSOCK WSAENOTSOCK |
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78 | #endif |
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79 | |
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80 | static void eio_destroy (eio_req *req); |
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81 | |
54 | #ifndef EIO_FINISH |
82 | #ifndef EIO_FINISH |
55 | # define EIO_FINISH(req) ((req)->finish) && !EIO_CANCELLED (req) ? (req)->finish (req) : 0 |
83 | # define EIO_FINISH(req) ((req)->finish) && !EIO_CANCELLED (req) ? (req)->finish (req) : 0 |
56 | #endif |
84 | #endif |
57 | |
85 | |
58 | #ifndef EIO_DESTROY |
86 | #ifndef EIO_DESTROY |
… | |
… | |
61 | |
89 | |
62 | #ifndef EIO_FEED |
90 | #ifndef EIO_FEED |
63 | # define EIO_FEED(req) do { if ((req)->feed ) (req)->feed (req); } while (0) |
91 | # define EIO_FEED(req) do { if ((req)->feed ) (req)->feed (req); } while (0) |
64 | #endif |
92 | #endif |
65 | |
93 | |
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94 | #ifndef EIO_FD_TO_WIN32_HANDLE |
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95 | # define EIO_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd) |
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96 | #endif |
|
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97 | #ifndef EIO_WIN32_HANDLE_TO_FD |
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98 | # define EIO_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (handle, 0) |
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99 | #endif |
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100 | |
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101 | #define EIO_ERRNO(errval,retval) ((errno = errval), retval) |
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102 | |
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103 | #define EIO_ENOSYS() EIO_ERRNO (ENOSYS, -1) |
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104 | |
66 | #ifdef _WIN32 |
105 | #ifdef _WIN32 |
67 | |
106 | |
68 | /*doh*/ |
107 | #undef PAGESIZE |
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108 | #define PAGESIZE 4096 /* GetSystemInfo? */ |
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109 | |
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110 | /* TODO: look at how perl does stat (non-sloppy), unlink (ro-files), utime, link */ |
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111 | |
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112 | #ifdef EIO_STRUCT_STATI64 |
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113 | /* look at perl's non-sloppy stat */ |
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114 | #define stat(path,buf) _stati64 (path,buf) |
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115 | #define fstat(fd,buf) _fstati64 (fd,buf) |
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116 | #endif |
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117 | #define lstat(path,buf) stat (path,buf) |
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118 | #define fsync(fd) (FlushFileBuffers ((HANDLE)EIO_FD_TO_WIN32_HANDLE (fd)) ? 0 : EIO_ERRNO (EBADF, -1)) |
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119 | #define mkdir(path,mode) _mkdir (path) |
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120 | #define link(old,neu) (CreateHardLink (neu, old, 0) ? 0 : EIO_ERRNO (ENOENT, -1)) |
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121 | |
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122 | #define chmod(path,mode) _chmod (path, mode) |
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123 | #define dup(fd) _dup (fd) |
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124 | #define dup2(fd1,fd2) _dup2 (fd1, fd2) |
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125 | |
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126 | #define fchmod(fd,mode) EIO_ENOSYS () |
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127 | #define chown(path,uid,gid) EIO_ENOSYS () |
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128 | #define fchown(fd,uid,gid) EIO_ENOSYS () |
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129 | #define truncate(path,offs) EIO_ENOSYS () /* far-miss: SetEndOfFile */ |
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130 | #define ftruncate(fd,offs) EIO_ENOSYS () /* near-miss: SetEndOfFile */ |
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131 | #define mknod(path,mode,dev) EIO_ENOSYS () |
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132 | #define sync() EIO_ENOSYS () |
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133 | #define readlink(path,buf,s) EIO_ENOSYS () |
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134 | #define statvfs(path,buf) EIO_ENOSYS () |
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135 | #define fstatvfs(fd,buf) EIO_ENOSYS () |
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136 | |
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137 | #define pread(fd,buf,count,offset) eio__pread (fd, buf, count, offset) |
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138 | #define pwrite(fd,buf,count,offset) eio__pwrite (fd, buf, count, offset) |
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139 | |
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140 | #if __GNUC__ |
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141 | typedef long long eio_off_t; /* signed for compatibility to msvc */ |
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142 | #else |
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143 | typedef __int64 eio_off_t; /* unsigned not supported by msvc */ |
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144 | #endif |
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145 | |
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146 | static eio_ssize_t |
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147 | eio__pread (int fd, void *buf, eio_ssize_t count, eio_off_t offset) |
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148 | { |
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149 | OVERLAPPED o = { 0 }; |
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150 | DWORD got; |
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151 | |
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152 | o.Offset = offset; |
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153 | o.OffsetHigh = offset >> 32; |
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154 | |
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155 | return ReadFile ((HANDLE)EIO_FD_TO_WIN32_HANDLE (fd), buf, count, &got, &o) |
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156 | ? got : -1; |
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157 | } |
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158 | |
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159 | static eio_ssize_t |
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160 | eio__pwrite (int fd, void *buf, eio_ssize_t count, eio_off_t offset) |
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161 | { |
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162 | OVERLAPPED o = { 0 }; |
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163 | DWORD got; |
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164 | |
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165 | o.Offset = offset; |
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166 | o.OffsetHigh = offset >> 32; |
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167 | |
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168 | return WriteFile ((HANDLE)EIO_FD_TO_WIN32_HANDLE (fd), buf, count, &got, &o) |
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169 | ? got : -1; |
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170 | } |
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171 | |
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172 | /* rename() uses MoveFile, which fails to overwrite */ |
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173 | #define rename(old,neu) eio__rename (old, neu) |
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174 | |
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175 | static int |
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176 | eio__rename (const char *old, const char *neu) |
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177 | { |
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178 | if (MoveFileEx (old, neu, MOVEFILE_REPLACE_EXISTING)) |
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179 | return 0; |
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180 | |
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181 | /* should steal _dosmaperr */ |
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182 | switch (GetLastError ()) |
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183 | { |
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184 | case ERROR_FILE_NOT_FOUND: |
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185 | case ERROR_PATH_NOT_FOUND: |
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186 | case ERROR_INVALID_DRIVE: |
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187 | case ERROR_NO_MORE_FILES: |
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188 | case ERROR_BAD_NETPATH: |
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189 | case ERROR_BAD_NET_NAME: |
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190 | case ERROR_BAD_PATHNAME: |
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191 | case ERROR_FILENAME_EXCED_RANGE: |
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192 | errno = ENOENT; |
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193 | break; |
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194 | |
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195 | default: |
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196 | errno = EACCES; |
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197 | break; |
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198 | } |
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199 | |
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200 | return -1; |
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201 | } |
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202 | |
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203 | /* we could even stat and see if it exists */ |
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204 | static int |
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205 | symlink (const char *old, const char *neu) |
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206 | { |
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207 | #if WINVER >= 0x0600 |
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208 | if (CreateSymbolicLink (neu, old, 1)) |
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209 | return 0; |
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210 | |
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211 | if (CreateSymbolicLink (neu, old, 0)) |
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212 | return 0; |
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213 | #endif |
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214 | |
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215 | return EIO_ERRNO (ENOENT, -1); |
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216 | } |
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217 | |
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218 | /* POSIX API only */ |
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219 | #define CreateHardLink(neu,old,flags) 0 |
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220 | #define CreateSymbolicLink(neu,old,flags) 0 |
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221 | |
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222 | struct statvfs |
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223 | { |
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224 | int dummy; |
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225 | }; |
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226 | |
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227 | #define DT_DIR EIO_DT_DIR |
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228 | #define DT_REG EIO_DT_REG |
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229 | #define D_NAME(entp) entp.cFileName |
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230 | #define D_TYPE(entp) (entp.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY ? DT_DIR : DT_REG) |
69 | |
231 | |
70 | #else |
232 | #else |
71 | |
233 | |
72 | # include "config.h" |
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73 | # include <sys/time.h> |
234 | #include <sys/time.h> |
74 | # include <sys/select.h> |
235 | #include <sys/select.h> |
75 | # include <unistd.h> |
236 | #include <unistd.h> |
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237 | #include <signal.h> |
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238 | #include <dirent.h> |
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239 | |
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240 | #if ANDROID |
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241 | #include <sys/vfs.h> |
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242 | #define statvfs statfs |
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243 | #define fstatvfs fstatfs |
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244 | #include <asm/page.h> /* supposedly limits.h does #define PAGESIZE PAGESIZE */ |
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245 | #else |
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246 | #include <sys/statvfs.h> |
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247 | #endif |
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248 | |
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249 | #if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES |
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250 | #include <sys/mman.h> |
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251 | #endif |
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252 | |
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253 | #define D_NAME(entp) entp->d_name |
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254 | |
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255 | /* POSIX_SOURCE is useless on bsd's, and XOPEN_SOURCE is unreliable there, too */ |
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256 | #if __FreeBSD__ || __NetBSD__ || __OpenBSD__ |
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257 | #define _DIRENT_HAVE_D_TYPE /* sigh */ |
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258 | #define D_INO(de) (de)->d_fileno |
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259 | #define D_NAMLEN(de) (de)->d_namlen |
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260 | #elif __linux || defined d_ino || _XOPEN_SOURCE >= 600 |
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261 | #define D_INO(de) (de)->d_ino |
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262 | #endif |
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263 | |
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264 | #ifdef _D_EXACT_NAMLEN |
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265 | #undef D_NAMLEN |
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266 | #define D_NAMLEN(de) _D_EXACT_NAMLEN (de) |
|
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267 | #endif |
|
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268 | |
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269 | #ifdef _DIRENT_HAVE_D_TYPE |
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270 | #define D_TYPE(de) (de)->d_type |
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271 | #endif |
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272 | |
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273 | #ifndef EIO_STRUCT_DIRENT |
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274 | #define EIO_STRUCT_DIRENT struct dirent |
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275 | #endif |
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276 | |
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277 | #endif |
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278 | |
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279 | #if HAVE_UTIMES |
76 | # include <utime.h> |
280 | # include <utime.h> |
77 | # include <signal.h> |
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78 | # include <dirent.h> |
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79 | |
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80 | # ifndef EIO_STRUCT_DIRENT |
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81 | # define EIO_STRUCT_DIRENT struct dirent |
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82 | # endif |
281 | #endif |
83 | |
282 | |
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283 | #if HAVE_SYS_SYSCALL_H |
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284 | # include <sys/syscall.h> |
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285 | #endif |
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286 | |
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287 | #if HAVE_SYS_PRCTL_H |
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288 | # include <sys/prctl.h> |
84 | #endif |
289 | #endif |
85 | |
290 | |
86 | #if HAVE_SENDFILE |
291 | #if HAVE_SENDFILE |
87 | # if __linux |
292 | # if __linux |
88 | # include <sys/sendfile.h> |
293 | # include <sys/sendfile.h> |
89 | # elif __freebsd |
294 | # elif __FreeBSD__ || defined __APPLE__ |
90 | # include <sys/socket.h> |
295 | # include <sys/socket.h> |
91 | # include <sys/uio.h> |
296 | # include <sys/uio.h> |
92 | # elif __hpux |
297 | # elif __hpux |
93 | # include <sys/socket.h> |
298 | # include <sys/socket.h> |
94 | # elif __solaris /* not yet */ |
299 | # elif __solaris |
95 | # include <sys/sendfile.h> |
300 | # include <sys/sendfile.h> |
96 | # else |
301 | # else |
97 | # error sendfile support requested but not available |
302 | # error sendfile support requested but not available |
98 | # endif |
303 | # endif |
99 | #endif |
304 | #endif |
100 | |
305 | |
101 | /* number of seconds after which an idle threads exit */ |
306 | #ifndef D_TYPE |
102 | #define IDLE_TIMEOUT 10 |
307 | # define D_TYPE(de) 0 |
|
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308 | #endif |
|
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309 | #ifndef D_INO |
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310 | # define D_INO(de) 0 |
|
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311 | #endif |
|
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312 | #ifndef D_NAMLEN |
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313 | # define D_NAMLEN(entp) strlen (D_NAME (entp)) |
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314 | #endif |
103 | |
315 | |
104 | /* used for struct dirent, AIX doesn't provide it */ |
316 | /* used for struct dirent, AIX doesn't provide it */ |
105 | #ifndef NAME_MAX |
317 | #ifndef NAME_MAX |
106 | # define NAME_MAX 4096 |
318 | # define NAME_MAX 4096 |
107 | #endif |
319 | #endif |
108 | |
320 | |
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321 | /* used for readlink etc. */ |
|
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322 | #ifndef PATH_MAX |
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323 | # define PATH_MAX 4096 |
|
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324 | #endif |
|
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325 | |
109 | /* buffer size for various temporary buffers */ |
326 | /* buffer size for various temporary buffers */ |
110 | #define EIO_BUFSIZE 65536 |
327 | #define EIO_BUFSIZE 65536 |
111 | |
328 | |
112 | #define dBUF \ |
329 | #define dBUF \ |
113 | char *eio_buf; \ |
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114 | ETP_WORKER_LOCK (self); \ |
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115 | self->dbuf = eio_buf = malloc (EIO_BUFSIZE); \ |
330 | char *eio_buf = malloc (EIO_BUFSIZE); \ |
116 | ETP_WORKER_UNLOCK (self); \ |
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117 | errno = ENOMEM; \ |
331 | errno = ENOMEM; \ |
118 | if (!eio_buf) \ |
332 | if (!eio_buf) \ |
119 | return -1; |
333 | return -1 |
|
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334 | |
|
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335 | #define FUBd \ |
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336 | free (eio_buf) |
120 | |
337 | |
121 | #define EIO_TICKS ((1000000 + 1023) >> 10) |
338 | #define EIO_TICKS ((1000000 + 1023) >> 10) |
122 | |
339 | |
123 | /*****************************************************************************/ |
340 | /*****************************************************************************/ |
124 | |
341 | |
125 | #if __GNUC__ >= 3 |
342 | struct tmpbuf |
126 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
343 | { |
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344 | void *ptr; |
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345 | int len; |
|
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346 | }; |
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347 | |
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348 | static void * |
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349 | tmpbuf_get (struct tmpbuf *buf, int len) |
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350 | { |
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351 | if (buf->len < len) |
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352 | { |
|
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353 | free (buf->ptr); |
|
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354 | buf->ptr = malloc (buf->len = len); |
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355 | } |
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356 | |
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357 | return buf->ptr; |
|
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358 | } |
|
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359 | |
|
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360 | struct tmpbuf; |
|
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361 | |
|
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362 | #if _POSIX_VERSION >= 200809L |
|
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363 | #define HAVE_AT 1 |
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364 | #define WD2FD(wd) ((wd) ? (wd)->fd : AT_FDCWD) |
|
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365 | #ifndef O_SEARCH |
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366 | #define O_SEARCH O_RDONLY |
|
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367 | #endif |
127 | #else |
368 | #else |
128 | # define expect(expr,value) (expr) |
369 | #define HAVE_AT 0 |
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370 | static const char *wd_expand (struct tmpbuf *tmpbuf, eio_wd wd, const char *path); |
129 | #endif |
371 | #endif |
130 | |
372 | |
131 | #define expect_false(expr) expect ((expr) != 0, 0) |
373 | struct eio_pwd |
132 | #define expect_true(expr) expect ((expr) != 0, 1) |
374 | { |
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375 | #if HAVE_AT |
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376 | int fd; |
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377 | #endif |
|
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378 | int len; |
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379 | char str[1]; /* actually, a 0-terminated canonical path */ |
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380 | }; |
133 | |
381 | |
134 | /*****************************************************************************/ |
382 | /*****************************************************************************/ |
135 | |
383 | |
136 | #define ETP_PRI_MIN EIO_PRI_MIN |
384 | #define ETP_PRI_MIN EIO_PRI_MIN |
137 | #define ETP_PRI_MAX EIO_PRI_MAX |
385 | #define ETP_PRI_MAX EIO_PRI_MAX |
… | |
… | |
143 | static int eio_finish (eio_req *req); |
391 | static int eio_finish (eio_req *req); |
144 | #define ETP_FINISH(req) eio_finish (req) |
392 | #define ETP_FINISH(req) eio_finish (req) |
145 | static void eio_execute (struct etp_worker *self, eio_req *req); |
393 | static void eio_execute (struct etp_worker *self, eio_req *req); |
146 | #define ETP_EXECUTE(wrk,req) eio_execute (wrk,req) |
394 | #define ETP_EXECUTE(wrk,req) eio_execute (wrk,req) |
147 | |
395 | |
148 | #define ETP_WORKER_CLEAR(req) \ |
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149 | if (wrk->dbuf) \ |
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150 | { \ |
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151 | free (wrk->dbuf); \ |
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152 | wrk->dbuf = 0; \ |
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153 | } \ |
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154 | \ |
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155 | if (wrk->dirp) \ |
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156 | { \ |
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157 | closedir (wrk->dirp); \ |
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158 | wrk->dirp = 0; \ |
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159 | } |
|
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160 | #define ETP_WORKER_COMMON \ |
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|
161 | void *dbuf; \ |
|
|
162 | DIR *dirp; |
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163 | |
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|
164 | /*****************************************************************************/ |
396 | /*****************************************************************************/ |
165 | |
397 | |
166 | #define ETP_NUM_PRI (ETP_PRI_MAX - ETP_PRI_MIN + 1) |
398 | #define ETP_NUM_PRI (ETP_PRI_MAX - ETP_PRI_MIN + 1) |
167 | |
399 | |
168 | /* calculcate time difference in ~1/EIO_TICKS of a second */ |
400 | /* calculate time difference in ~1/EIO_TICKS of a second */ |
|
|
401 | ecb_inline int |
169 | static int tvdiff (struct timeval *tv1, struct timeval *tv2) |
402 | tvdiff (struct timeval *tv1, struct timeval *tv2) |
170 | { |
403 | { |
171 | return (tv2->tv_sec - tv1->tv_sec ) * EIO_TICKS |
404 | return (tv2->tv_sec - tv1->tv_sec ) * EIO_TICKS |
172 | + ((tv2->tv_usec - tv1->tv_usec) >> 10); |
405 | + ((tv2->tv_usec - tv1->tv_usec) >> 10); |
173 | } |
406 | } |
174 | |
407 | |
… | |
… | |
178 | static void (*done_poll_cb) (void); |
411 | static void (*done_poll_cb) (void); |
179 | |
412 | |
180 | static unsigned int max_poll_time; /* reslock */ |
413 | static unsigned int max_poll_time; /* reslock */ |
181 | static unsigned int max_poll_reqs; /* reslock */ |
414 | static unsigned int max_poll_reqs; /* reslock */ |
182 | |
415 | |
183 | static volatile unsigned int nreqs; /* reqlock */ |
416 | static unsigned int nreqs; /* reqlock */ |
184 | static volatile unsigned int nready; /* reqlock */ |
417 | static unsigned int nready; /* reqlock */ |
185 | static volatile unsigned int npending; /* reqlock */ |
418 | static unsigned int npending; /* reqlock */ |
186 | static volatile unsigned int max_idle = 4; |
419 | static unsigned int max_idle = 4; /* maximum number of threads that can idle indefinitely */ |
|
|
420 | static unsigned int idle_timeout = 10; /* number of seconds after which an idle threads exit */ |
187 | |
421 | |
188 | static mutex_t wrklock = X_MUTEX_INIT; |
422 | static xmutex_t wrklock; |
189 | static mutex_t reslock = X_MUTEX_INIT; |
423 | static xmutex_t reslock; |
190 | static mutex_t reqlock = X_MUTEX_INIT; |
424 | static xmutex_t reqlock; |
191 | static cond_t reqwait = X_COND_INIT; |
425 | static xcond_t reqwait; |
192 | |
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|
193 | #if !HAVE_PREADWRITE |
|
|
194 | /* |
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|
195 | * make our pread/pwrite emulation safe against themselves, but not against |
|
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196 | * normal read/write by using a mutex. slows down execution a lot, |
|
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197 | * but that's your problem, not mine. |
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198 | */ |
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199 | static mutex_t preadwritelock = X_MUTEX_INIT; |
|
|
200 | #endif |
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201 | |
426 | |
202 | typedef struct etp_worker |
427 | typedef struct etp_worker |
203 | { |
428 | { |
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|
429 | struct tmpbuf tmpbuf; |
|
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430 | |
204 | /* locked by wrklock */ |
431 | /* locked by wrklock */ |
205 | struct etp_worker *prev, *next; |
432 | struct etp_worker *prev, *next; |
206 | |
433 | |
207 | thread_t tid; |
434 | xthread_t tid; |
208 | |
435 | |
209 | /* locked by reslock, reqlock or wrklock */ |
436 | #ifdef ETP_WORKER_COMMON |
210 | ETP_REQ *req; /* currently processed request */ |
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211 | |
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212 | ETP_WORKER_COMMON |
437 | ETP_WORKER_COMMON |
|
|
438 | #endif |
213 | } etp_worker; |
439 | } etp_worker; |
214 | |
440 | |
215 | static etp_worker wrk_first = { &wrk_first, &wrk_first, 0 }; /* NOT etp */ |
441 | static etp_worker wrk_first; /* NOT etp */ |
216 | |
442 | |
217 | #define ETP_WORKER_LOCK(wrk) X_LOCK (wrklock) |
443 | #define ETP_WORKER_LOCK(wrk) X_LOCK (wrklock) |
218 | #define ETP_WORKER_UNLOCK(wrk) X_UNLOCK (wrklock) |
444 | #define ETP_WORKER_UNLOCK(wrk) X_UNLOCK (wrklock) |
219 | |
445 | |
220 | /* worker threads management */ |
446 | /* worker threads management */ |
221 | |
447 | |
|
|
448 | static void |
222 | static void etp_worker_clear (etp_worker *wrk) |
449 | etp_worker_clear (etp_worker *wrk) |
223 | { |
450 | { |
224 | ETP_WORKER_CLEAR (wrk); |
|
|
225 | } |
451 | } |
226 | |
452 | |
|
|
453 | static void ecb_cold |
227 | static void etp_worker_free (etp_worker *wrk) |
454 | etp_worker_free (etp_worker *wrk) |
228 | { |
455 | { |
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456 | free (wrk->tmpbuf.ptr); |
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457 | |
229 | wrk->next->prev = wrk->prev; |
458 | wrk->next->prev = wrk->prev; |
230 | wrk->prev->next = wrk->next; |
459 | wrk->prev->next = wrk->next; |
231 | |
460 | |
232 | free (wrk); |
461 | free (wrk); |
233 | } |
462 | } |
234 | |
463 | |
235 | static unsigned int etp_nreqs (void) |
464 | static unsigned int |
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465 | etp_nreqs (void) |
236 | { |
466 | { |
237 | int retval; |
467 | int retval; |
238 | if (WORDACCESS_UNSAFE) X_LOCK (reqlock); |
468 | if (WORDACCESS_UNSAFE) X_LOCK (reqlock); |
239 | retval = nreqs; |
469 | retval = nreqs; |
240 | if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock); |
470 | if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock); |
241 | return retval; |
471 | return retval; |
242 | } |
472 | } |
243 | |
473 | |
244 | static unsigned int etp_nready (void) |
474 | static unsigned int |
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|
475 | etp_nready (void) |
245 | { |
476 | { |
246 | unsigned int retval; |
477 | unsigned int retval; |
247 | |
478 | |
248 | if (WORDACCESS_UNSAFE) X_LOCK (reqlock); |
479 | if (WORDACCESS_UNSAFE) X_LOCK (reqlock); |
249 | retval = nready; |
480 | retval = nready; |
250 | if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock); |
481 | if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock); |
251 | |
482 | |
252 | return retval; |
483 | return retval; |
253 | } |
484 | } |
254 | |
485 | |
255 | static unsigned int etp_npending (void) |
486 | static unsigned int |
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|
487 | etp_npending (void) |
256 | { |
488 | { |
257 | unsigned int retval; |
489 | unsigned int retval; |
258 | |
490 | |
259 | if (WORDACCESS_UNSAFE) X_LOCK (reqlock); |
491 | if (WORDACCESS_UNSAFE) X_LOCK (reqlock); |
260 | retval = npending; |
492 | retval = npending; |
261 | if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock); |
493 | if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock); |
262 | |
494 | |
263 | return retval; |
495 | return retval; |
264 | } |
496 | } |
265 | |
497 | |
266 | static unsigned int etp_nthreads (void) |
498 | static unsigned int |
|
|
499 | etp_nthreads (void) |
267 | { |
500 | { |
268 | unsigned int retval; |
501 | unsigned int retval; |
269 | |
502 | |
270 | if (WORDACCESS_UNSAFE) X_LOCK (reqlock); |
503 | if (WORDACCESS_UNSAFE) X_LOCK (reqlock); |
271 | retval = started; |
504 | retval = started; |
… | |
… | |
285 | } etp_reqq; |
518 | } etp_reqq; |
286 | |
519 | |
287 | static etp_reqq req_queue; |
520 | static etp_reqq req_queue; |
288 | static etp_reqq res_queue; |
521 | static etp_reqq res_queue; |
289 | |
522 | |
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|
523 | static void ecb_noinline ecb_cold |
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524 | reqq_init (etp_reqq *q) |
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525 | { |
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526 | int pri; |
|
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527 | |
|
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528 | for (pri = 0; pri < ETP_NUM_PRI; ++pri) |
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529 | q->qs[pri] = q->qe[pri] = 0; |
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530 | |
|
|
531 | q->size = 0; |
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532 | } |
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533 | |
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534 | static int ecb_noinline |
290 | static int reqq_push (etp_reqq *q, ETP_REQ *req) |
535 | reqq_push (etp_reqq *q, ETP_REQ *req) |
291 | { |
536 | { |
292 | int pri = req->pri; |
537 | int pri = req->pri; |
293 | req->next = 0; |
538 | req->next = 0; |
294 | |
539 | |
295 | if (q->qe[pri]) |
540 | if (q->qe[pri]) |
… | |
… | |
301 | q->qe[pri] = q->qs[pri] = req; |
546 | q->qe[pri] = q->qs[pri] = req; |
302 | |
547 | |
303 | return q->size++; |
548 | return q->size++; |
304 | } |
549 | } |
305 | |
550 | |
|
|
551 | static ETP_REQ * ecb_noinline |
306 | static ETP_REQ *reqq_shift (etp_reqq *q) |
552 | reqq_shift (etp_reqq *q) |
307 | { |
553 | { |
308 | int pri; |
554 | int pri; |
309 | |
555 | |
310 | if (!q->size) |
556 | if (!q->size) |
311 | return 0; |
557 | return 0; |
… | |
… | |
326 | } |
572 | } |
327 | |
573 | |
328 | abort (); |
574 | abort (); |
329 | } |
575 | } |
330 | |
576 | |
331 | static void etp_atfork_prepare (void) |
577 | static int ecb_cold |
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|
578 | etp_init (void (*want_poll)(void), void (*done_poll)(void)) |
332 | { |
579 | { |
333 | X_LOCK (wrklock); |
580 | X_MUTEX_CREATE (wrklock); |
334 | X_LOCK (reqlock); |
581 | X_MUTEX_CREATE (reslock); |
335 | X_LOCK (reslock); |
582 | X_MUTEX_CREATE (reqlock); |
336 | #if !HAVE_PREADWRITE |
583 | X_COND_CREATE (reqwait); |
337 | X_LOCK (preadwritelock); |
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|
338 | #endif |
|
|
339 | } |
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|
340 | |
584 | |
341 | static void etp_atfork_parent (void) |
585 | reqq_init (&req_queue); |
342 | { |
586 | reqq_init (&res_queue); |
343 | #if !HAVE_PREADWRITE |
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344 | X_UNLOCK (preadwritelock); |
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345 | #endif |
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346 | X_UNLOCK (reslock); |
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347 | X_UNLOCK (reqlock); |
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348 | X_UNLOCK (wrklock); |
|
|
349 | } |
|
|
350 | |
587 | |
351 | static void etp_atfork_child (void) |
588 | wrk_first.next = |
352 | { |
589 | wrk_first.prev = &wrk_first; |
353 | ETP_REQ *prv; |
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354 | |
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355 | while ((prv = reqq_shift (&req_queue))) |
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356 | ETP_DESTROY (prv); |
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357 | |
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358 | while ((prv = reqq_shift (&res_queue))) |
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359 | ETP_DESTROY (prv); |
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360 | |
|
|
361 | while (wrk_first.next != &wrk_first) |
|
|
362 | { |
|
|
363 | etp_worker *wrk = wrk_first.next; |
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364 | |
|
|
365 | if (wrk->req) |
|
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366 | ETP_DESTROY (wrk->req); |
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367 | |
|
|
368 | etp_worker_clear (wrk); |
|
|
369 | etp_worker_free (wrk); |
|
|
370 | } |
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|
371 | |
590 | |
372 | started = 0; |
591 | started = 0; |
373 | idle = 0; |
592 | idle = 0; |
374 | nreqs = 0; |
593 | nreqs = 0; |
375 | nready = 0; |
594 | nready = 0; |
376 | npending = 0; |
595 | npending = 0; |
377 | |
596 | |
378 | etp_atfork_parent (); |
|
|
379 | } |
|
|
380 | |
|
|
381 | static void |
|
|
382 | etp_once_init (void) |
|
|
383 | { |
|
|
384 | X_THREAD_ATFORK (etp_atfork_prepare, etp_atfork_parent, etp_atfork_child); |
|
|
385 | } |
|
|
386 | |
|
|
387 | static int |
|
|
388 | etp_init (void (*want_poll)(void), void (*done_poll)(void)) |
|
|
389 | { |
|
|
390 | static pthread_once_t doinit = PTHREAD_ONCE_INIT; |
|
|
391 | |
|
|
392 | pthread_once (&doinit, etp_once_init); |
|
|
393 | |
|
|
394 | want_poll_cb = want_poll; |
597 | want_poll_cb = want_poll; |
395 | done_poll_cb = done_poll; |
598 | done_poll_cb = done_poll; |
396 | |
599 | |
397 | return 0; |
600 | return 0; |
398 | } |
601 | } |
399 | |
602 | |
400 | X_THREAD_PROC (etp_proc); |
603 | X_THREAD_PROC (etp_proc); |
401 | |
604 | |
|
|
605 | static void ecb_cold |
402 | static void etp_start_thread (void) |
606 | etp_start_thread (void) |
403 | { |
607 | { |
404 | etp_worker *wrk = calloc (1, sizeof (etp_worker)); |
608 | etp_worker *wrk = calloc (1, sizeof (etp_worker)); |
405 | |
609 | |
406 | /*TODO*/ |
610 | /*TODO*/ |
407 | assert (("unable to allocate worker thread data", wrk)); |
611 | assert (("unable to allocate worker thread data", wrk)); |
408 | |
612 | |
409 | X_LOCK (wrklock); |
613 | X_LOCK (wrklock); |
410 | |
614 | |
411 | if (thread_create (&wrk->tid, etp_proc, (void *)wrk)) |
615 | if (xthread_create (&wrk->tid, etp_proc, (void *)wrk)) |
412 | { |
616 | { |
413 | wrk->prev = &wrk_first; |
617 | wrk->prev = &wrk_first; |
414 | wrk->next = wrk_first.next; |
618 | wrk->next = wrk_first.next; |
415 | wrk_first.next->prev = wrk; |
619 | wrk_first.next->prev = wrk; |
416 | wrk_first.next = wrk; |
620 | wrk_first.next = wrk; |
… | |
… | |
420 | free (wrk); |
624 | free (wrk); |
421 | |
625 | |
422 | X_UNLOCK (wrklock); |
626 | X_UNLOCK (wrklock); |
423 | } |
627 | } |
424 | |
628 | |
|
|
629 | static void |
425 | static void etp_maybe_start_thread (void) |
630 | etp_maybe_start_thread (void) |
426 | { |
631 | { |
427 | if (expect_true (etp_nthreads () >= wanted)) |
632 | if (ecb_expect_true (etp_nthreads () >= wanted)) |
428 | return; |
633 | return; |
429 | |
634 | |
430 | /* todo: maybe use idle here, but might be less exact */ |
635 | /* todo: maybe use idle here, but might be less exact */ |
431 | if (expect_true (0 <= (int)etp_nthreads () + (int)etp_npending () - (int)etp_nreqs ())) |
636 | if (ecb_expect_true (0 <= (int)etp_nthreads () + (int)etp_npending () - (int)etp_nreqs ())) |
432 | return; |
637 | return; |
433 | |
638 | |
434 | etp_start_thread (); |
639 | etp_start_thread (); |
435 | } |
640 | } |
436 | |
641 | |
|
|
642 | static void ecb_cold |
437 | static void etp_end_thread (void) |
643 | etp_end_thread (void) |
438 | { |
644 | { |
439 | eio_req *req = calloc (1, sizeof (eio_req)); |
645 | eio_req *req = calloc (1, sizeof (eio_req)); /* will be freed by worker */ |
440 | |
646 | |
441 | req->type = -1; |
647 | req->type = -1; |
442 | req->pri = ETP_PRI_MAX - ETP_PRI_MIN; |
648 | req->pri = ETP_PRI_MAX - ETP_PRI_MIN; |
443 | |
649 | |
444 | X_LOCK (reqlock); |
650 | X_LOCK (reqlock); |
… | |
… | |
449 | X_LOCK (wrklock); |
655 | X_LOCK (wrklock); |
450 | --started; |
656 | --started; |
451 | X_UNLOCK (wrklock); |
657 | X_UNLOCK (wrklock); |
452 | } |
658 | } |
453 | |
659 | |
454 | static int etp_poll (void) |
660 | static int |
|
|
661 | etp_poll (void) |
455 | { |
662 | { |
456 | unsigned int maxreqs; |
663 | unsigned int maxreqs; |
457 | unsigned int maxtime; |
664 | unsigned int maxtime; |
458 | struct timeval tv_start, tv_now; |
665 | struct timeval tv_start, tv_now; |
459 | |
666 | |
… | |
… | |
489 | |
696 | |
490 | X_LOCK (reqlock); |
697 | X_LOCK (reqlock); |
491 | --nreqs; |
698 | --nreqs; |
492 | X_UNLOCK (reqlock); |
699 | X_UNLOCK (reqlock); |
493 | |
700 | |
494 | if (expect_false (req->type == EIO_GROUP && req->size)) |
701 | if (ecb_expect_false (req->type == EIO_GROUP && req->size)) |
495 | { |
702 | { |
496 | req->int1 = 1; /* mark request as delayed */ |
703 | req->int1 = 1; /* mark request as delayed */ |
497 | continue; |
704 | continue; |
498 | } |
705 | } |
499 | else |
706 | else |
500 | { |
707 | { |
501 | int res = ETP_FINISH (req); |
708 | int res = ETP_FINISH (req); |
502 | if (expect_false (res)) |
709 | if (ecb_expect_false (res)) |
503 | return res; |
710 | return res; |
504 | } |
711 | } |
505 | |
712 | |
506 | if (expect_false (maxreqs && !--maxreqs)) |
713 | if (ecb_expect_false (maxreqs && !--maxreqs)) |
507 | break; |
714 | break; |
508 | |
715 | |
509 | if (maxtime) |
716 | if (maxtime) |
510 | { |
717 | { |
511 | gettimeofday (&tv_now, 0); |
718 | gettimeofday (&tv_now, 0); |
… | |
… | |
517 | |
724 | |
518 | errno = EAGAIN; |
725 | errno = EAGAIN; |
519 | return -1; |
726 | return -1; |
520 | } |
727 | } |
521 | |
728 | |
|
|
729 | static void |
522 | static void etp_cancel (ETP_REQ *req) |
730 | etp_cancel (ETP_REQ *req) |
523 | { |
731 | { |
524 | X_LOCK (wrklock); |
732 | req->cancelled = 1; |
525 | req->flags |= EIO_FLAG_CANCELLED; |
|
|
526 | X_UNLOCK (wrklock); |
|
|
527 | |
733 | |
528 | eio_grp_cancel (req); |
734 | eio_grp_cancel (req); |
529 | } |
735 | } |
530 | |
736 | |
|
|
737 | static void |
531 | static void etp_submit (ETP_REQ *req) |
738 | etp_submit (ETP_REQ *req) |
532 | { |
739 | { |
533 | req->pri -= ETP_PRI_MIN; |
740 | req->pri -= ETP_PRI_MIN; |
534 | |
741 | |
535 | if (expect_false (req->pri < ETP_PRI_MIN - ETP_PRI_MIN)) req->pri = ETP_PRI_MIN - ETP_PRI_MIN; |
742 | if (ecb_expect_false (req->pri < ETP_PRI_MIN - ETP_PRI_MIN)) req->pri = ETP_PRI_MIN - ETP_PRI_MIN; |
536 | if (expect_false (req->pri > ETP_PRI_MAX - ETP_PRI_MIN)) req->pri = ETP_PRI_MAX - ETP_PRI_MIN; |
743 | if (ecb_expect_false (req->pri > ETP_PRI_MAX - ETP_PRI_MIN)) req->pri = ETP_PRI_MAX - ETP_PRI_MIN; |
537 | |
744 | |
538 | if (expect_false (req->type == EIO_GROUP)) |
745 | if (ecb_expect_false (req->type == EIO_GROUP)) |
539 | { |
746 | { |
540 | /* I hope this is worth it :/ */ |
747 | /* I hope this is worth it :/ */ |
541 | X_LOCK (reqlock); |
748 | X_LOCK (reqlock); |
542 | ++nreqs; |
749 | ++nreqs; |
543 | X_UNLOCK (reqlock); |
750 | X_UNLOCK (reqlock); |
… | |
… | |
562 | |
769 | |
563 | etp_maybe_start_thread (); |
770 | etp_maybe_start_thread (); |
564 | } |
771 | } |
565 | } |
772 | } |
566 | |
773 | |
|
|
774 | static void ecb_cold |
567 | static void etp_set_max_poll_time (double nseconds) |
775 | etp_set_max_poll_time (double nseconds) |
568 | { |
776 | { |
569 | if (WORDACCESS_UNSAFE) X_LOCK (reslock); |
777 | if (WORDACCESS_UNSAFE) X_LOCK (reslock); |
570 | max_poll_time = nseconds; |
778 | max_poll_time = nseconds * EIO_TICKS; |
571 | if (WORDACCESS_UNSAFE) X_UNLOCK (reslock); |
779 | if (WORDACCESS_UNSAFE) X_UNLOCK (reslock); |
572 | } |
780 | } |
573 | |
781 | |
|
|
782 | static void ecb_cold |
574 | static void etp_set_max_poll_reqs (unsigned int maxreqs) |
783 | etp_set_max_poll_reqs (unsigned int maxreqs) |
575 | { |
784 | { |
576 | if (WORDACCESS_UNSAFE) X_LOCK (reslock); |
785 | if (WORDACCESS_UNSAFE) X_LOCK (reslock); |
577 | max_poll_reqs = maxreqs; |
786 | max_poll_reqs = maxreqs; |
578 | if (WORDACCESS_UNSAFE) X_UNLOCK (reslock); |
787 | if (WORDACCESS_UNSAFE) X_UNLOCK (reslock); |
579 | } |
788 | } |
580 | |
789 | |
|
|
790 | static void ecb_cold |
581 | static void etp_set_max_idle (unsigned int nthreads) |
791 | etp_set_max_idle (unsigned int nthreads) |
582 | { |
792 | { |
583 | if (WORDACCESS_UNSAFE) X_LOCK (reqlock); |
793 | if (WORDACCESS_UNSAFE) X_LOCK (reqlock); |
584 | max_idle = nthreads <= 0 ? 1 : nthreads; |
794 | max_idle = nthreads; |
585 | if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock); |
795 | if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock); |
586 | } |
796 | } |
587 | |
797 | |
|
|
798 | static void ecb_cold |
|
|
799 | etp_set_idle_timeout (unsigned int seconds) |
|
|
800 | { |
|
|
801 | if (WORDACCESS_UNSAFE) X_LOCK (reqlock); |
|
|
802 | idle_timeout = seconds; |
|
|
803 | if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock); |
|
|
804 | } |
|
|
805 | |
|
|
806 | static void ecb_cold |
588 | static void etp_set_min_parallel (unsigned int nthreads) |
807 | etp_set_min_parallel (unsigned int nthreads) |
589 | { |
808 | { |
590 | if (wanted < nthreads) |
809 | if (wanted < nthreads) |
591 | wanted = nthreads; |
810 | wanted = nthreads; |
592 | } |
811 | } |
593 | |
812 | |
|
|
813 | static void ecb_cold |
594 | static void etp_set_max_parallel (unsigned int nthreads) |
814 | etp_set_max_parallel (unsigned int nthreads) |
595 | { |
815 | { |
596 | if (wanted > nthreads) |
816 | if (wanted > nthreads) |
597 | wanted = nthreads; |
817 | wanted = nthreads; |
598 | |
818 | |
599 | while (started > wanted) |
819 | while (started > wanted) |
600 | etp_end_thread (); |
820 | etp_end_thread (); |
601 | } |
821 | } |
602 | |
822 | |
603 | /*****************************************************************************/ |
823 | /*****************************************************************************/ |
604 | |
824 | |
|
|
825 | static void |
605 | static void grp_try_feed (eio_req *grp) |
826 | grp_try_feed (eio_req *grp) |
606 | { |
827 | { |
607 | while (grp->size < grp->int2 && !EIO_CANCELLED (grp)) |
828 | while (grp->size < grp->int2 && !EIO_CANCELLED (grp)) |
608 | { |
829 | { |
609 | grp->flags &= ~EIO_FLAG_GROUPADD; |
830 | grp->flags &= ~EIO_FLAG_GROUPADD; |
610 | |
831 | |
… | |
… | |
617 | break; |
838 | break; |
618 | } |
839 | } |
619 | } |
840 | } |
620 | } |
841 | } |
621 | |
842 | |
|
|
843 | static int |
622 | static int grp_dec (eio_req *grp) |
844 | grp_dec (eio_req *grp) |
623 | { |
845 | { |
624 | --grp->size; |
846 | --grp->size; |
625 | |
847 | |
626 | /* call feeder, if applicable */ |
848 | /* call feeder, if applicable */ |
627 | grp_try_feed (grp); |
849 | grp_try_feed (grp); |
… | |
… | |
631 | return eio_finish (grp); |
853 | return eio_finish (grp); |
632 | else |
854 | else |
633 | return 0; |
855 | return 0; |
634 | } |
856 | } |
635 | |
857 | |
|
|
858 | static void |
636 | void eio_destroy (eio_req *req) |
859 | eio_destroy (eio_req *req) |
637 | { |
860 | { |
638 | if ((req)->flags & EIO_FLAG_PTR1_FREE) free (req->ptr1); |
861 | if ((req)->flags & EIO_FLAG_PTR1_FREE) free (req->ptr1); |
639 | if ((req)->flags & EIO_FLAG_PTR2_FREE) free (req->ptr2); |
862 | if ((req)->flags & EIO_FLAG_PTR2_FREE) free (req->ptr2); |
640 | |
863 | |
641 | EIO_DESTROY (req); |
864 | EIO_DESTROY (req); |
642 | } |
865 | } |
643 | |
866 | |
|
|
867 | static int |
644 | static int eio_finish (eio_req *req) |
868 | eio_finish (eio_req *req) |
645 | { |
869 | { |
646 | int res = EIO_FINISH (req); |
870 | int res = EIO_FINISH (req); |
647 | |
871 | |
648 | if (req->grp) |
872 | if (req->grp) |
649 | { |
873 | { |
… | |
… | |
657 | if (grp->grp_first == req) |
881 | if (grp->grp_first == req) |
658 | grp->grp_first = req->grp_next; |
882 | grp->grp_first = req->grp_next; |
659 | |
883 | |
660 | res2 = grp_dec (grp); |
884 | res2 = grp_dec (grp); |
661 | |
885 | |
662 | if (!res && res2) |
886 | if (!res) |
663 | res = res2; |
887 | res = res2; |
664 | } |
888 | } |
665 | |
889 | |
666 | eio_destroy (req); |
890 | eio_destroy (req); |
667 | |
891 | |
668 | return res; |
892 | return res; |
669 | } |
893 | } |
670 | |
894 | |
|
|
895 | void |
671 | void eio_grp_cancel (eio_req *grp) |
896 | eio_grp_cancel (eio_req *grp) |
672 | { |
897 | { |
673 | for (grp = grp->grp_first; grp; grp = grp->grp_next) |
898 | for (grp = grp->grp_first; grp; grp = grp->grp_next) |
674 | eio_cancel (grp); |
899 | eio_cancel (grp); |
675 | } |
900 | } |
676 | |
901 | |
|
|
902 | void |
677 | void eio_cancel (eio_req *req) |
903 | eio_cancel (eio_req *req) |
678 | { |
904 | { |
679 | etp_cancel (req); |
905 | etp_cancel (req); |
680 | } |
906 | } |
681 | |
907 | |
|
|
908 | void |
682 | void eio_submit (eio_req *req) |
909 | eio_submit (eio_req *req) |
683 | { |
910 | { |
684 | etp_submit (req); |
911 | etp_submit (req); |
685 | } |
912 | } |
686 | |
913 | |
687 | unsigned int eio_nreqs (void) |
914 | unsigned int |
|
|
915 | eio_nreqs (void) |
688 | { |
916 | { |
689 | return etp_nreqs (); |
917 | return etp_nreqs (); |
690 | } |
918 | } |
691 | |
919 | |
692 | unsigned int eio_nready (void) |
920 | unsigned int |
|
|
921 | eio_nready (void) |
693 | { |
922 | { |
694 | return etp_nready (); |
923 | return etp_nready (); |
695 | } |
924 | } |
696 | |
925 | |
697 | unsigned int eio_npending (void) |
926 | unsigned int |
|
|
927 | eio_npending (void) |
698 | { |
928 | { |
699 | return etp_npending (); |
929 | return etp_npending (); |
700 | } |
930 | } |
701 | |
931 | |
702 | unsigned int eio_nthreads (void) |
932 | unsigned int ecb_cold |
|
|
933 | eio_nthreads (void) |
703 | { |
934 | { |
704 | return etp_nthreads (); |
935 | return etp_nthreads (); |
705 | } |
936 | } |
706 | |
937 | |
|
|
938 | void ecb_cold |
707 | void eio_set_max_poll_time (double nseconds) |
939 | eio_set_max_poll_time (double nseconds) |
708 | { |
940 | { |
709 | etp_set_max_poll_time (nseconds); |
941 | etp_set_max_poll_time (nseconds); |
710 | } |
942 | } |
711 | |
943 | |
|
|
944 | void ecb_cold |
712 | void eio_set_max_poll_reqs (unsigned int maxreqs) |
945 | eio_set_max_poll_reqs (unsigned int maxreqs) |
713 | { |
946 | { |
714 | etp_set_max_poll_reqs (maxreqs); |
947 | etp_set_max_poll_reqs (maxreqs); |
715 | } |
948 | } |
716 | |
949 | |
|
|
950 | void ecb_cold |
717 | void eio_set_max_idle (unsigned int nthreads) |
951 | eio_set_max_idle (unsigned int nthreads) |
718 | { |
952 | { |
719 | etp_set_max_idle (nthreads); |
953 | etp_set_max_idle (nthreads); |
720 | } |
954 | } |
721 | |
955 | |
|
|
956 | void ecb_cold |
|
|
957 | eio_set_idle_timeout (unsigned int seconds) |
|
|
958 | { |
|
|
959 | etp_set_idle_timeout (seconds); |
|
|
960 | } |
|
|
961 | |
|
|
962 | void ecb_cold |
722 | void eio_set_min_parallel (unsigned int nthreads) |
963 | eio_set_min_parallel (unsigned int nthreads) |
723 | { |
964 | { |
724 | etp_set_min_parallel (nthreads); |
965 | etp_set_min_parallel (nthreads); |
725 | } |
966 | } |
726 | |
967 | |
|
|
968 | void ecb_cold |
727 | void eio_set_max_parallel (unsigned int nthreads) |
969 | eio_set_max_parallel (unsigned int nthreads) |
728 | { |
970 | { |
729 | etp_set_max_parallel (nthreads); |
971 | etp_set_max_parallel (nthreads); |
730 | } |
972 | } |
731 | |
973 | |
732 | int eio_poll (void) |
974 | int eio_poll (void) |
… | |
… | |
735 | } |
977 | } |
736 | |
978 | |
737 | /*****************************************************************************/ |
979 | /*****************************************************************************/ |
738 | /* work around various missing functions */ |
980 | /* work around various missing functions */ |
739 | |
981 | |
740 | #if !HAVE_PREADWRITE |
|
|
741 | # undef pread |
|
|
742 | # undef pwrite |
|
|
743 | # define pread eio__pread |
|
|
744 | # define pwrite eio__pwrite |
|
|
745 | |
|
|
746 | static ssize_t |
|
|
747 | eio__pread (int fd, void *buf, size_t count, off_t offset) |
|
|
748 | { |
|
|
749 | ssize_t res; |
|
|
750 | off_t ooffset; |
|
|
751 | |
|
|
752 | X_LOCK (preadwritelock); |
|
|
753 | ooffset = lseek (fd, 0, SEEK_CUR); |
|
|
754 | lseek (fd, offset, SEEK_SET); |
|
|
755 | res = read (fd, buf, count); |
|
|
756 | lseek (fd, ooffset, SEEK_SET); |
|
|
757 | X_UNLOCK (preadwritelock); |
|
|
758 | |
|
|
759 | return res; |
|
|
760 | } |
|
|
761 | |
|
|
762 | static ssize_t |
|
|
763 | eio__pwrite (int fd, void *buf, size_t count, off_t offset) |
|
|
764 | { |
|
|
765 | ssize_t res; |
|
|
766 | off_t ooffset; |
|
|
767 | |
|
|
768 | X_LOCK (preadwritelock); |
|
|
769 | ooffset = lseek (fd, 0, SEEK_CUR); |
|
|
770 | lseek (fd, offset, SEEK_SET); |
|
|
771 | res = write (fd, buf, count); |
|
|
772 | lseek (fd, offset, SEEK_SET); |
|
|
773 | X_UNLOCK (preadwritelock); |
|
|
774 | |
|
|
775 | return res; |
|
|
776 | } |
|
|
777 | #endif |
|
|
778 | |
|
|
779 | #ifndef HAVE_FUTIMES |
982 | #ifndef HAVE_UTIMES |
780 | |
983 | |
781 | # undef utimes |
984 | # undef utimes |
782 | # undef futimes |
|
|
783 | # define utimes(path,times) eio__utimes (path, times) |
985 | # define utimes(path,times) eio__utimes (path, times) |
784 | # define futimes(fd,times) eio__futimes (fd, times) |
|
|
785 | |
986 | |
786 | static int |
987 | static int |
787 | eio__utimes (const char *filename, const struct timeval times[2]) |
988 | eio__utimes (const char *filename, const struct timeval times[2]) |
788 | { |
989 | { |
789 | if (times) |
990 | if (times) |
… | |
… | |
797 | } |
998 | } |
798 | else |
999 | else |
799 | return utime (filename, 0); |
1000 | return utime (filename, 0); |
800 | } |
1001 | } |
801 | |
1002 | |
|
|
1003 | #endif |
|
|
1004 | |
|
|
1005 | #ifndef HAVE_FUTIMES |
|
|
1006 | |
|
|
1007 | # undef futimes |
|
|
1008 | # define futimes(fd,times) eio__futimes (fd, times) |
|
|
1009 | |
|
|
1010 | static int |
802 | static int eio__futimes (int fd, const struct timeval tv[2]) |
1011 | eio__futimes (int fd, const struct timeval tv[2]) |
803 | { |
1012 | { |
804 | errno = ENOSYS; |
1013 | errno = ENOSYS; |
805 | return -1; |
1014 | return -1; |
806 | } |
1015 | } |
807 | |
1016 | |
… | |
… | |
810 | #if !HAVE_FDATASYNC |
1019 | #if !HAVE_FDATASYNC |
811 | # undef fdatasync |
1020 | # undef fdatasync |
812 | # define fdatasync(fd) fsync (fd) |
1021 | # define fdatasync(fd) fsync (fd) |
813 | #endif |
1022 | #endif |
814 | |
1023 | |
|
|
1024 | static int |
|
|
1025 | eio__syncfs (int fd) |
|
|
1026 | { |
|
|
1027 | int res; |
|
|
1028 | |
|
|
1029 | #if HAVE_SYS_SYNCFS |
|
|
1030 | res = (int)syscall (__NR_syncfs, (int)(fd)); |
|
|
1031 | #else |
|
|
1032 | res = EIO_ENOSYS (); |
|
|
1033 | #endif |
|
|
1034 | |
|
|
1035 | if (res < 0 && errno == ENOSYS && fd >= 0) |
|
|
1036 | sync (); |
|
|
1037 | |
|
|
1038 | return res; |
|
|
1039 | } |
|
|
1040 | |
815 | /* sync_file_range always needs emulation */ |
1041 | /* sync_file_range always needs emulation */ |
816 | int |
1042 | static int |
817 | eio__sync_file_range (int fd, off_t offset, size_t nbytes, unsigned int flags) |
1043 | eio__sync_file_range (int fd, off_t offset, size_t nbytes, unsigned int flags) |
818 | { |
1044 | { |
819 | #if HAVE_SYNC_FILE_RANGE |
1045 | #if HAVE_SYNC_FILE_RANGE |
820 | int res; |
1046 | int res; |
821 | |
1047 | |
… | |
… | |
829 | | (flags & EIO_SYNC_FILE_RANGE_WAIT_AFTER ? SYNC_FILE_RANGE_WAIT_AFTER : 0); |
1055 | | (flags & EIO_SYNC_FILE_RANGE_WAIT_AFTER ? SYNC_FILE_RANGE_WAIT_AFTER : 0); |
830 | } |
1056 | } |
831 | |
1057 | |
832 | res = sync_file_range (fd, offset, nbytes, flags); |
1058 | res = sync_file_range (fd, offset, nbytes, flags); |
833 | |
1059 | |
834 | if (res != ENOSYS) |
1060 | if (!res || errno != ENOSYS) |
835 | return res; |
1061 | return res; |
836 | #endif |
1062 | #endif |
837 | |
1063 | |
838 | /* even though we could play tricks with the flags, it's better to always |
1064 | /* even though we could play tricks with the flags, it's better to always |
839 | * call fdatasync, as thta matches the expectation of it's users best */ |
1065 | * call fdatasync, as that matches the expectation of its users best */ |
840 | return fdatasync (fd); |
1066 | return fdatasync (fd); |
|
|
1067 | } |
|
|
1068 | |
|
|
1069 | static int |
|
|
1070 | eio__fallocate (int fd, int mode, off_t offset, size_t len) |
|
|
1071 | { |
|
|
1072 | #if HAVE_LINUX_FALLOCATE |
|
|
1073 | return fallocate (fd, mode, offset, len); |
|
|
1074 | #else |
|
|
1075 | return EIO_ENOSYS (); |
|
|
1076 | #endif |
841 | } |
1077 | } |
842 | |
1078 | |
843 | #if !HAVE_READAHEAD |
1079 | #if !HAVE_READAHEAD |
844 | # undef readahead |
1080 | # undef readahead |
845 | # define readahead(fd,offset,count) eio__readahead (fd, offset, count, self) |
1081 | # define readahead(fd,offset,count) eio__readahead (fd, offset, count, self) |
846 | |
1082 | |
847 | static ssize_t |
1083 | static eio_ssize_t |
848 | eio__readahead (int fd, off_t offset, size_t count, etp_worker *self) |
1084 | eio__readahead (int fd, off_t offset, size_t count, etp_worker *self) |
849 | { |
1085 | { |
850 | size_t todo = count; |
1086 | size_t todo = count; |
851 | dBUF; |
1087 | dBUF; |
852 | |
1088 | |
… | |
… | |
857 | pread (fd, eio_buf, len, offset); |
1093 | pread (fd, eio_buf, len, offset); |
858 | offset += len; |
1094 | offset += len; |
859 | todo -= len; |
1095 | todo -= len; |
860 | } |
1096 | } |
861 | |
1097 | |
862 | errno = 0; |
1098 | FUBd; |
|
|
1099 | |
|
|
1100 | /* linux's readahead basically only fails for EBADF or EINVAL (not mmappable) */ |
|
|
1101 | /* but not for e.g. EIO or eof, so we also never fail */ |
863 | return count; |
1102 | return 0; |
864 | } |
1103 | } |
865 | |
1104 | |
866 | #endif |
1105 | #endif |
867 | |
1106 | |
868 | /* sendfile always needs emulation */ |
1107 | /* sendfile always needs emulation */ |
869 | static ssize_t |
1108 | static eio_ssize_t |
870 | eio__sendfile (int ofd, int ifd, off_t offset, size_t count, etp_worker *self) |
1109 | eio__sendfile (int ofd, int ifd, off_t offset, size_t count) |
871 | { |
1110 | { |
|
|
1111 | eio_ssize_t written = 0; |
872 | ssize_t res; |
1112 | eio_ssize_t res; |
873 | |
1113 | |
874 | if (!count) |
1114 | if (!count) |
875 | return 0; |
1115 | return 0; |
876 | |
1116 | |
|
|
1117 | for (;;) |
|
|
1118 | { |
|
|
1119 | #ifdef __APPLE__ |
|
|
1120 | # undef HAVE_SENDFILE /* broken, as everything on os x */ |
|
|
1121 | #endif |
877 | #if HAVE_SENDFILE |
1122 | #if HAVE_SENDFILE |
878 | # if __linux |
1123 | # if __linux |
|
|
1124 | off_t soffset = offset; |
879 | res = sendfile (ofd, ifd, &offset, count); |
1125 | res = sendfile (ofd, ifd, &soffset, count); |
880 | |
1126 | |
881 | # elif __freebsd |
1127 | # elif __FreeBSD__ |
882 | /* |
1128 | /* |
883 | * Of course, the freebsd sendfile is a dire hack with no thoughts |
1129 | * Of course, the freebsd sendfile is a dire hack with no thoughts |
884 | * wasted on making it similar to other I/O functions. |
1130 | * wasted on making it similar to other I/O functions. |
885 | */ |
1131 | */ |
886 | { |
|
|
887 | off_t sbytes; |
1132 | off_t sbytes; |
888 | res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0); |
1133 | res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0); |
889 | |
1134 | |
890 | if (res < 0 && sbytes) |
1135 | #if 0 /* according to the manpage, this is correct, but broken behaviour */ |
891 | /* maybe only on EAGAIN: as usual, the manpage leaves you guessing */ |
1136 | /* freebsd' sendfile will return 0 on success */ |
|
|
1137 | /* freebsd 8 documents it as only setting *sbytes on EINTR and EAGAIN, but */ |
|
|
1138 | /* not on e.g. EIO or EPIPE - sounds broken */ |
|
|
1139 | if ((res < 0 && (errno == EAGAIN || errno == EINTR) && sbytes) || res == 0) |
892 | res = sbytes; |
1140 | res = sbytes; |
893 | } |
1141 | #endif |
|
|
1142 | |
|
|
1143 | /* according to source inspection, this is correct, and useful behaviour */ |
|
|
1144 | if (sbytes) |
|
|
1145 | res = sbytes; |
|
|
1146 | |
|
|
1147 | # elif defined __APPLE__ |
|
|
1148 | off_t sbytes = count; |
|
|
1149 | res = sendfile (ifd, ofd, offset, &sbytes, 0, 0); |
|
|
1150 | |
|
|
1151 | /* according to the manpage, sbytes is always valid */ |
|
|
1152 | if (sbytes) |
|
|
1153 | res = sbytes; |
894 | |
1154 | |
895 | # elif __hpux |
1155 | # elif __hpux |
896 | res = sendfile (ofd, ifd, offset, count, 0, 0); |
1156 | res = sendfile (ofd, ifd, offset, count, 0, 0); |
897 | |
1157 | |
898 | # elif __solaris |
1158 | # elif __solaris |
899 | { |
|
|
900 | struct sendfilevec vec; |
1159 | struct sendfilevec vec; |
901 | size_t sbytes; |
1160 | size_t sbytes; |
902 | |
1161 | |
903 | vec.sfv_fd = ifd; |
1162 | vec.sfv_fd = ifd; |
904 | vec.sfv_flag = 0; |
1163 | vec.sfv_flag = 0; |
905 | vec.sfv_off = offset; |
1164 | vec.sfv_off = offset; |
906 | vec.sfv_len = count; |
1165 | vec.sfv_len = count; |
907 | |
1166 | |
908 | res = sendfilev (ofd, &vec, 1, &sbytes); |
1167 | res = sendfilev (ofd, &vec, 1, &sbytes); |
909 | |
1168 | |
910 | if (res < 0 && sbytes) |
1169 | if (res < 0 && sbytes) |
911 | res = sbytes; |
1170 | res = sbytes; |
912 | } |
|
|
913 | |
1171 | |
914 | # endif |
1172 | # endif |
|
|
1173 | |
|
|
1174 | #elif defined (_WIN32) && 0 |
|
|
1175 | /* does not work, just for documentation of what would need to be done */ |
|
|
1176 | /* actually, cannot be done like this, as TransmitFile changes the file offset, */ |
|
|
1177 | /* libeio guarantees that the file offset does not change, and windows */ |
|
|
1178 | /* has no way to get an independent handle to the same file description */ |
|
|
1179 | HANDLE h = TO_SOCKET (ifd); |
|
|
1180 | SetFilePointer (h, offset, 0, FILE_BEGIN); |
|
|
1181 | res = TransmitFile (TO_SOCKET (ofd), h, count, 0, 0, 0, 0); |
|
|
1182 | |
915 | #else |
1183 | #else |
916 | res = -1; |
1184 | res = EIO_ENOSYS (); |
917 | errno = ENOSYS; |
|
|
918 | #endif |
1185 | #endif |
919 | |
1186 | |
|
|
1187 | /* we assume sendfile can copy at least 128mb in one go */ |
|
|
1188 | if (res <= 128 * 1024 * 1024) |
|
|
1189 | { |
|
|
1190 | if (res > 0) |
|
|
1191 | written += res; |
|
|
1192 | |
|
|
1193 | if (written) |
|
|
1194 | return written; |
|
|
1195 | |
|
|
1196 | break; |
|
|
1197 | } |
|
|
1198 | else |
|
|
1199 | { |
|
|
1200 | /* if we requested more, then probably the kernel was lazy */ |
|
|
1201 | written += res; |
|
|
1202 | offset += res; |
|
|
1203 | count -= res; |
|
|
1204 | |
|
|
1205 | if (!count) |
|
|
1206 | return written; |
|
|
1207 | } |
|
|
1208 | } |
|
|
1209 | |
920 | if (res < 0 |
1210 | if (res < 0 |
921 | && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK |
1211 | && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK |
|
|
1212 | /* BSDs */ |
|
|
1213 | #ifdef ENOTSUP /* sigh, if the steenking pile called openbsd would only try to at least compile posix code... */ |
|
|
1214 | || errno == ENOTSUP |
|
|
1215 | #endif |
|
|
1216 | #ifdef EOPNOTSUPP /* windows */ |
|
|
1217 | || errno == EOPNOTSUPP /* BSDs */ |
|
|
1218 | #endif |
922 | #if __solaris |
1219 | #if __solaris |
923 | || errno == EAFNOSUPPORT || errno == EPROTOTYPE |
1220 | || errno == EAFNOSUPPORT || errno == EPROTOTYPE |
924 | #endif |
1221 | #endif |
925 | ) |
1222 | ) |
926 | ) |
1223 | ) |
… | |
… | |
930 | |
1227 | |
931 | res = 0; |
1228 | res = 0; |
932 | |
1229 | |
933 | while (count) |
1230 | while (count) |
934 | { |
1231 | { |
935 | ssize_t cnt; |
1232 | eio_ssize_t cnt; |
936 | |
1233 | |
937 | cnt = pread (ifd, eio_buf, count > EIO_BUFSIZE ? EIO_BUFSIZE : count, offset); |
1234 | cnt = pread (ifd, eio_buf, count > EIO_BUFSIZE ? EIO_BUFSIZE : count, offset); |
938 | |
1235 | |
939 | if (cnt <= 0) |
1236 | if (cnt <= 0) |
940 | { |
1237 | { |
… | |
… | |
952 | |
1249 | |
953 | offset += cnt; |
1250 | offset += cnt; |
954 | res += cnt; |
1251 | res += cnt; |
955 | count -= cnt; |
1252 | count -= cnt; |
956 | } |
1253 | } |
|
|
1254 | |
|
|
1255 | FUBd; |
957 | } |
1256 | } |
958 | |
1257 | |
959 | return res; |
1258 | return res; |
|
|
1259 | } |
|
|
1260 | |
|
|
1261 | #ifdef PAGESIZE |
|
|
1262 | # define eio_pagesize() PAGESIZE |
|
|
1263 | #else |
|
|
1264 | static intptr_t |
|
|
1265 | eio_pagesize (void) |
|
|
1266 | { |
|
|
1267 | static intptr_t page; |
|
|
1268 | |
|
|
1269 | if (!page) |
|
|
1270 | page = sysconf (_SC_PAGESIZE); |
|
|
1271 | |
|
|
1272 | return page; |
|
|
1273 | } |
|
|
1274 | #endif |
|
|
1275 | |
|
|
1276 | static void |
|
|
1277 | eio_page_align (void **addr, size_t *length) |
|
|
1278 | { |
|
|
1279 | intptr_t mask = eio_pagesize () - 1; |
|
|
1280 | |
|
|
1281 | /* round down addr */ |
|
|
1282 | intptr_t adj = mask & (intptr_t)*addr; |
|
|
1283 | |
|
|
1284 | *addr = (void *)((intptr_t)*addr - adj); |
|
|
1285 | *length += adj; |
|
|
1286 | |
|
|
1287 | /* round up length */ |
|
|
1288 | *length = (*length + mask) & ~mask; |
|
|
1289 | } |
|
|
1290 | |
|
|
1291 | #if !_POSIX_MEMLOCK |
|
|
1292 | # define eio__mlockall(a) EIO_ENOSYS () |
|
|
1293 | #else |
|
|
1294 | |
|
|
1295 | static int |
|
|
1296 | eio__mlockall (int flags) |
|
|
1297 | { |
|
|
1298 | #if __GLIBC__ == 2 && __GLIBC_MINOR__ <= 7 |
|
|
1299 | extern int mallopt (int, int); |
|
|
1300 | mallopt (-6, 238); /* http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=473812 */ |
|
|
1301 | #endif |
|
|
1302 | |
|
|
1303 | if (EIO_MCL_CURRENT != MCL_CURRENT |
|
|
1304 | || EIO_MCL_FUTURE != MCL_FUTURE) |
|
|
1305 | { |
|
|
1306 | flags = 0 |
|
|
1307 | | (flags & EIO_MCL_CURRENT ? MCL_CURRENT : 0) |
|
|
1308 | | (flags & EIO_MCL_FUTURE ? MCL_FUTURE : 0); |
|
|
1309 | } |
|
|
1310 | |
|
|
1311 | return mlockall (flags); |
|
|
1312 | } |
|
|
1313 | #endif |
|
|
1314 | |
|
|
1315 | #if !_POSIX_MEMLOCK_RANGE |
|
|
1316 | # define eio__mlock(a,b) EIO_ENOSYS () |
|
|
1317 | #else |
|
|
1318 | |
|
|
1319 | static int |
|
|
1320 | eio__mlock (void *addr, size_t length) |
|
|
1321 | { |
|
|
1322 | eio_page_align (&addr, &length); |
|
|
1323 | |
|
|
1324 | return mlock (addr, length); |
|
|
1325 | } |
|
|
1326 | |
|
|
1327 | #endif |
|
|
1328 | |
|
|
1329 | #if !(_POSIX_MAPPED_FILES && _POSIX_SYNCHRONIZED_IO) |
|
|
1330 | # define eio__msync(a,b,c) EIO_ENOSYS () |
|
|
1331 | #else |
|
|
1332 | |
|
|
1333 | static int |
|
|
1334 | eio__msync (void *mem, size_t len, int flags) |
|
|
1335 | { |
|
|
1336 | eio_page_align (&mem, &len); |
|
|
1337 | |
|
|
1338 | if (EIO_MS_ASYNC != MS_SYNC |
|
|
1339 | || EIO_MS_INVALIDATE != MS_INVALIDATE |
|
|
1340 | || EIO_MS_SYNC != MS_SYNC) |
|
|
1341 | { |
|
|
1342 | flags = 0 |
|
|
1343 | | (flags & EIO_MS_ASYNC ? MS_ASYNC : 0) |
|
|
1344 | | (flags & EIO_MS_INVALIDATE ? MS_INVALIDATE : 0) |
|
|
1345 | | (flags & EIO_MS_SYNC ? MS_SYNC : 0); |
|
|
1346 | } |
|
|
1347 | |
|
|
1348 | return msync (mem, len, flags); |
|
|
1349 | } |
|
|
1350 | |
|
|
1351 | #endif |
|
|
1352 | |
|
|
1353 | static int |
|
|
1354 | eio__mtouch (eio_req *req) |
|
|
1355 | { |
|
|
1356 | void *mem = req->ptr2; |
|
|
1357 | size_t len = req->size; |
|
|
1358 | int flags = req->int1; |
|
|
1359 | |
|
|
1360 | eio_page_align (&mem, &len); |
|
|
1361 | |
|
|
1362 | { |
|
|
1363 | intptr_t addr = (intptr_t)mem; |
|
|
1364 | intptr_t end = addr + len; |
|
|
1365 | intptr_t page = eio_pagesize (); |
|
|
1366 | |
|
|
1367 | if (addr < end) |
|
|
1368 | if (flags & EIO_MT_MODIFY) /* modify */ |
|
|
1369 | do { *((volatile sig_atomic_t *)addr) |= 0; } while ((addr += page) < len && !EIO_CANCELLED (req)); |
|
|
1370 | else |
|
|
1371 | do { *((volatile sig_atomic_t *)addr) ; } while ((addr += page) < len && !EIO_CANCELLED (req)); |
|
|
1372 | } |
|
|
1373 | |
|
|
1374 | return 0; |
|
|
1375 | } |
|
|
1376 | |
|
|
1377 | /*****************************************************************************/ |
|
|
1378 | /* requests implemented outside eio_execute, because they are so large */ |
|
|
1379 | |
|
|
1380 | static void |
|
|
1381 | eio__lseek (eio_req *req) |
|
|
1382 | { |
|
|
1383 | /* this usually gets optimised away completely, or your compiler sucks, */ |
|
|
1384 | /* or the whence constants really are not 0, 1, 2 */ |
|
|
1385 | int whence = req->int2 == EIO_SEEK_SET ? SEEK_SET |
|
|
1386 | : req->int2 == EIO_SEEK_CUR ? SEEK_CUR |
|
|
1387 | : req->int2 == EIO_SEEK_END ? SEEK_END |
|
|
1388 | : req->int2; |
|
|
1389 | |
|
|
1390 | req->offs = lseek (req->int1, req->offs, whence); |
|
|
1391 | req->result = req->offs == (off_t)-1 ? -1 : 0; |
|
|
1392 | } |
|
|
1393 | |
|
|
1394 | /* result will always end up in tmpbuf, there is always space for adding a 0-byte */ |
|
|
1395 | static int |
|
|
1396 | eio__realpath (struct tmpbuf *tmpbuf, eio_wd wd, const char *path) |
|
|
1397 | { |
|
|
1398 | const char *rel = path; |
|
|
1399 | char *res; |
|
|
1400 | char *tmp1, *tmp2; |
|
|
1401 | #if SYMLOOP_MAX > 32 |
|
|
1402 | int symlinks = SYMLOOP_MAX; |
|
|
1403 | #else |
|
|
1404 | int symlinks = 32; |
|
|
1405 | #endif |
|
|
1406 | |
|
|
1407 | errno = EINVAL; |
|
|
1408 | if (!rel) |
|
|
1409 | return -1; |
|
|
1410 | |
|
|
1411 | errno = ENOENT; |
|
|
1412 | if (!*rel) |
|
|
1413 | return -1; |
|
|
1414 | |
|
|
1415 | res = tmpbuf_get (tmpbuf, PATH_MAX * 3); |
|
|
1416 | tmp1 = res + PATH_MAX; |
|
|
1417 | tmp2 = tmp1 + PATH_MAX; |
|
|
1418 | |
|
|
1419 | #if 0 /* disabled, the musl way to do things is just too racy */ |
|
|
1420 | #if __linux && defined(O_NONBLOCK) && defined(O_NOATIME) |
|
|
1421 | /* on linux we may be able to ask the kernel */ |
|
|
1422 | { |
|
|
1423 | int fd = open (rel, O_RDONLY | O_NONBLOCK | O_NOCTTY | O_NOATIME); |
|
|
1424 | |
|
|
1425 | if (fd >= 0) |
|
|
1426 | { |
|
|
1427 | sprintf (tmp1, "/proc/self/fd/%d", fd); |
|
|
1428 | req->result = readlink (tmp1, res, PATH_MAX); |
|
|
1429 | /* here we should probably stat the open file and the disk file, to make sure they still match */ |
|
|
1430 | close (fd); |
|
|
1431 | |
|
|
1432 | if (req->result > 0) |
|
|
1433 | goto done; |
|
|
1434 | } |
|
|
1435 | else if (errno == ELOOP || errno == ENAMETOOLONG || errno == ENOENT || errno == ENOTDIR || errno == EIO) |
|
|
1436 | return -1; |
|
|
1437 | } |
|
|
1438 | #endif |
|
|
1439 | #endif |
|
|
1440 | |
|
|
1441 | if (*rel != '/') |
|
|
1442 | { |
|
|
1443 | int len; |
|
|
1444 | |
|
|
1445 | errno = ENOENT; |
|
|
1446 | if (wd == EIO_INVALID_WD) |
|
|
1447 | return -1; |
|
|
1448 | |
|
|
1449 | if (wd == EIO_CWD) |
|
|
1450 | { |
|
|
1451 | if (!getcwd (res, PATH_MAX)) |
|
|
1452 | return -1; |
|
|
1453 | |
|
|
1454 | len = strlen (res); |
|
|
1455 | } |
|
|
1456 | else |
|
|
1457 | memcpy (res, wd->str, len = wd->len); |
|
|
1458 | |
|
|
1459 | if (res [1]) /* only use if not / */ |
|
|
1460 | res += len; |
|
|
1461 | } |
|
|
1462 | |
|
|
1463 | while (*rel) |
|
|
1464 | { |
|
|
1465 | eio_ssize_t len, linklen; |
|
|
1466 | const char *beg = rel; |
|
|
1467 | |
|
|
1468 | while (*rel && *rel != '/') |
|
|
1469 | ++rel; |
|
|
1470 | |
|
|
1471 | len = rel - beg; |
|
|
1472 | |
|
|
1473 | if (!len) /* skip slashes */ |
|
|
1474 | { |
|
|
1475 | ++rel; |
|
|
1476 | continue; |
|
|
1477 | } |
|
|
1478 | |
|
|
1479 | if (beg [0] == '.') |
|
|
1480 | { |
|
|
1481 | if (len == 1) |
|
|
1482 | continue; /* . - nop */ |
|
|
1483 | |
|
|
1484 | if (beg [1] == '.' && len == 2) |
|
|
1485 | { |
|
|
1486 | /* .. - back up one component, if possible */ |
|
|
1487 | |
|
|
1488 | while (res != tmpbuf->ptr) |
|
|
1489 | if (*--res == '/') |
|
|
1490 | break; |
|
|
1491 | |
|
|
1492 | continue; |
|
|
1493 | } |
|
|
1494 | } |
|
|
1495 | |
|
|
1496 | errno = ENAMETOOLONG; |
|
|
1497 | if (res + 1 + len + 1 >= tmp1) |
|
|
1498 | return -1; |
|
|
1499 | |
|
|
1500 | /* copy one component */ |
|
|
1501 | *res = '/'; |
|
|
1502 | memcpy (res + 1, beg, len); |
|
|
1503 | |
|
|
1504 | /* zero-terminate, for readlink */ |
|
|
1505 | res [len + 1] = 0; |
|
|
1506 | |
|
|
1507 | /* now check if it's a symlink */ |
|
|
1508 | linklen = readlink (tmpbuf->ptr, tmp1, PATH_MAX); |
|
|
1509 | |
|
|
1510 | if (linklen < 0) |
|
|
1511 | { |
|
|
1512 | if (errno != EINVAL) |
|
|
1513 | return -1; |
|
|
1514 | |
|
|
1515 | /* it's a normal directory. hopefully */ |
|
|
1516 | res += len + 1; |
|
|
1517 | } |
|
|
1518 | else |
|
|
1519 | { |
|
|
1520 | /* yay, it was a symlink - build new path in tmp2 */ |
|
|
1521 | int rellen = strlen (rel); |
|
|
1522 | |
|
|
1523 | errno = ENAMETOOLONG; |
|
|
1524 | if (linklen + 1 + rellen >= PATH_MAX) |
|
|
1525 | return -1; |
|
|
1526 | |
|
|
1527 | errno = ELOOP; |
|
|
1528 | if (!--symlinks) |
|
|
1529 | return -1; |
|
|
1530 | |
|
|
1531 | if (*tmp1 == '/') |
|
|
1532 | res = tmpbuf->ptr; /* symlink resolves to an absolute path */ |
|
|
1533 | |
|
|
1534 | /* we need to be careful, as rel might point into tmp2 already */ |
|
|
1535 | memmove (tmp2 + linklen + 1, rel, rellen + 1); |
|
|
1536 | tmp2 [linklen] = '/'; |
|
|
1537 | memcpy (tmp2, tmp1, linklen); |
|
|
1538 | |
|
|
1539 | rel = tmp2; |
|
|
1540 | } |
|
|
1541 | } |
|
|
1542 | |
|
|
1543 | /* special case for the lone root path */ |
|
|
1544 | if (res == tmpbuf->ptr) |
|
|
1545 | *res++ = '/'; |
|
|
1546 | |
|
|
1547 | return res - (char *)tmpbuf->ptr; |
|
|
1548 | } |
|
|
1549 | |
|
|
1550 | static signed char |
|
|
1551 | eio_dent_cmp (const eio_dirent *a, const eio_dirent *b) |
|
|
1552 | { |
|
|
1553 | return a->score - b->score ? a->score - b->score /* works because our signed char is always 0..100 */ |
|
|
1554 | : a->inode < b->inode ? -1 |
|
|
1555 | : a->inode > b->inode ? 1 |
|
|
1556 | : 0; |
|
|
1557 | } |
|
|
1558 | |
|
|
1559 | #define EIO_DENT_CMP(i,op,j) eio_dent_cmp (&i, &j) op 0 |
|
|
1560 | |
|
|
1561 | #define EIO_SORT_CUTOFF 30 /* quite high, but performs well on many filesystems */ |
|
|
1562 | #define EIO_SORT_FAST 60 /* when to only use insertion sort */ |
|
|
1563 | |
|
|
1564 | static void |
|
|
1565 | eio_dent_radix_sort (eio_dirent *dents, int size, signed char score_bits, eio_ino_t inode_bits) |
|
|
1566 | { |
|
|
1567 | unsigned char bits [9 + sizeof (eio_ino_t) * 8]; |
|
|
1568 | unsigned char *bit = bits; |
|
|
1569 | |
|
|
1570 | assert (CHAR_BIT == 8); |
|
|
1571 | assert (sizeof (eio_dirent) * 8 < 256); |
|
|
1572 | assert (offsetof (eio_dirent, inode)); /* we use bit #0 as sentinel */ |
|
|
1573 | assert (offsetof (eio_dirent, score)); /* we use bit #0 as sentinel */ |
|
|
1574 | |
|
|
1575 | if (size <= EIO_SORT_FAST) |
|
|
1576 | return; |
|
|
1577 | |
|
|
1578 | /* first prepare an array of bits to test in our radix sort */ |
|
|
1579 | /* try to take endianness into account, as well as differences in eio_ino_t sizes */ |
|
|
1580 | /* inode_bits must contain all inodes ORed together */ |
|
|
1581 | /* which is used to skip bits that are 0 everywhere, which is very common */ |
|
|
1582 | { |
|
|
1583 | eio_ino_t endianness; |
|
|
1584 | int i, j; |
|
|
1585 | |
|
|
1586 | /* we store the byte offset of byte n into byte n of "endianness" */ |
|
|
1587 | for (i = 0; i < sizeof (eio_ino_t); ++i) |
|
|
1588 | ((unsigned char *)&endianness)[i] = i; |
|
|
1589 | |
|
|
1590 | *bit++ = 0; |
|
|
1591 | |
|
|
1592 | for (i = 0; i < sizeof (eio_ino_t); ++i) |
|
|
1593 | { |
|
|
1594 | /* shifting off the byte offsets out of "endianness" */ |
|
|
1595 | int offs = (offsetof (eio_dirent, inode) + (endianness & 0xff)) * 8; |
|
|
1596 | endianness >>= 8; |
|
|
1597 | |
|
|
1598 | for (j = 0; j < 8; ++j) |
|
|
1599 | if (inode_bits & (((eio_ino_t)1) << (i * 8 + j))) |
|
|
1600 | *bit++ = offs + j; |
|
|
1601 | } |
|
|
1602 | |
|
|
1603 | for (j = 0; j < 8; ++j) |
|
|
1604 | if (score_bits & (1 << j)) |
|
|
1605 | *bit++ = offsetof (eio_dirent, score) * 8 + j; |
|
|
1606 | } |
|
|
1607 | |
|
|
1608 | /* now actually do the sorting (a variant of MSD radix sort) */ |
|
|
1609 | { |
|
|
1610 | eio_dirent *base_stk [9 + sizeof (eio_ino_t) * 8], *base; |
|
|
1611 | eio_dirent *end_stk [9 + sizeof (eio_ino_t) * 8], *end; |
|
|
1612 | unsigned char *bit_stk [9 + sizeof (eio_ino_t) * 8]; |
|
|
1613 | int stk_idx = 0; |
|
|
1614 | |
|
|
1615 | base_stk [stk_idx] = dents; |
|
|
1616 | end_stk [stk_idx] = dents + size; |
|
|
1617 | bit_stk [stk_idx] = bit - 1; |
|
|
1618 | |
|
|
1619 | do |
|
|
1620 | { |
|
|
1621 | base = base_stk [stk_idx]; |
|
|
1622 | end = end_stk [stk_idx]; |
|
|
1623 | bit = bit_stk [stk_idx]; |
|
|
1624 | |
|
|
1625 | for (;;) |
|
|
1626 | { |
|
|
1627 | unsigned char O = *bit >> 3; |
|
|
1628 | unsigned char M = 1 << (*bit & 7); |
|
|
1629 | |
|
|
1630 | eio_dirent *a = base; |
|
|
1631 | eio_dirent *b = end; |
|
|
1632 | |
|
|
1633 | if (b - a < EIO_SORT_CUTOFF) |
|
|
1634 | break; |
|
|
1635 | |
|
|
1636 | /* now bit-partition the array on the bit */ |
|
|
1637 | /* this ugly asymmetric loop seems to perform much better than typical */ |
|
|
1638 | /* partition algos found in the literature */ |
|
|
1639 | do |
|
|
1640 | if (!(((unsigned char *)a)[O] & M)) |
|
|
1641 | ++a; |
|
|
1642 | else if (!(((unsigned char *)--b)[O] & M)) |
|
|
1643 | { |
|
|
1644 | eio_dirent tmp = *a; *a = *b; *b = tmp; |
|
|
1645 | ++a; |
|
|
1646 | } |
|
|
1647 | while (b > a); |
|
|
1648 | |
|
|
1649 | /* next bit, or stop, if no bits left in this path */ |
|
|
1650 | if (!*--bit) |
|
|
1651 | break; |
|
|
1652 | |
|
|
1653 | base_stk [stk_idx] = a; |
|
|
1654 | end_stk [stk_idx] = end; |
|
|
1655 | bit_stk [stk_idx] = bit; |
|
|
1656 | ++stk_idx; |
|
|
1657 | |
|
|
1658 | end = a; |
|
|
1659 | } |
|
|
1660 | } |
|
|
1661 | while (stk_idx--); |
|
|
1662 | } |
|
|
1663 | } |
|
|
1664 | |
|
|
1665 | static void |
|
|
1666 | eio_dent_insertion_sort (eio_dirent *dents, int size) |
|
|
1667 | { |
|
|
1668 | /* first move the smallest element to the front, to act as a sentinel */ |
|
|
1669 | { |
|
|
1670 | int i; |
|
|
1671 | eio_dirent *min = dents; |
|
|
1672 | |
|
|
1673 | /* the radix pre-pass ensures that the minimum element is in the first EIO_SORT_CUTOFF + 1 elements */ |
|
|
1674 | for (i = size > EIO_SORT_FAST ? EIO_SORT_CUTOFF + 1 : size; --i; ) |
|
|
1675 | if (EIO_DENT_CMP (dents [i], <, *min)) |
|
|
1676 | min = &dents [i]; |
|
|
1677 | |
|
|
1678 | /* swap elements 0 and j (minimum) */ |
|
|
1679 | { |
|
|
1680 | eio_dirent tmp = *dents; *dents = *min; *min = tmp; |
|
|
1681 | } |
|
|
1682 | } |
|
|
1683 | |
|
|
1684 | /* then do standard insertion sort, assuming that all elements are >= dents [0] */ |
|
|
1685 | { |
|
|
1686 | eio_dirent *i, *j; |
|
|
1687 | |
|
|
1688 | for (i = dents + 1; i < dents + size; ++i) |
|
|
1689 | { |
|
|
1690 | eio_dirent value = *i; |
|
|
1691 | |
|
|
1692 | for (j = i - 1; EIO_DENT_CMP (*j, >, value); --j) |
|
|
1693 | j [1] = j [0]; |
|
|
1694 | |
|
|
1695 | j [1] = value; |
|
|
1696 | } |
|
|
1697 | } |
|
|
1698 | } |
|
|
1699 | |
|
|
1700 | static void |
|
|
1701 | eio_dent_sort (eio_dirent *dents, int size, signed char score_bits, eio_ino_t inode_bits) |
|
|
1702 | { |
|
|
1703 | if (size <= 1) |
|
|
1704 | return; /* our insertion sort relies on size > 0 */ |
|
|
1705 | |
|
|
1706 | /* first we use a radix sort, but only for dirs >= EIO_SORT_FAST */ |
|
|
1707 | /* and stop sorting when the partitions are <= EIO_SORT_CUTOFF */ |
|
|
1708 | eio_dent_radix_sort (dents, size, score_bits, inode_bits); |
|
|
1709 | |
|
|
1710 | /* use an insertion sort at the end, or for small arrays, */ |
|
|
1711 | /* as insertion sort is more efficient for small partitions */ |
|
|
1712 | eio_dent_insertion_sort (dents, size); |
960 | } |
1713 | } |
961 | |
1714 | |
962 | /* read a full directory */ |
1715 | /* read a full directory */ |
963 | static void |
1716 | static void |
964 | eio__scandir (eio_req *req, etp_worker *self) |
1717 | eio__scandir (eio_req *req, etp_worker *self) |
965 | { |
1718 | { |
|
|
1719 | char *name, *names; |
|
|
1720 | int namesalloc = 4096 - sizeof (void *) * 4; |
|
|
1721 | int namesoffs = 0; |
|
|
1722 | int flags = req->int1; |
|
|
1723 | eio_dirent *dents = 0; |
|
|
1724 | int dentalloc = 128; |
|
|
1725 | int dentoffs = 0; |
|
|
1726 | eio_ino_t inode_bits = 0; |
|
|
1727 | #ifdef _WIN32 |
|
|
1728 | HANDLE dirp; |
|
|
1729 | WIN32_FIND_DATA entp; |
|
|
1730 | #else |
966 | DIR *dirp; |
1731 | DIR *dirp; |
967 | EIO_STRUCT_DIRENT *entp; |
1732 | EIO_STRUCT_DIRENT *entp; |
968 | char *name, *names; |
1733 | #endif |
969 | int memlen = 4096; |
|
|
970 | int memofs = 0; |
|
|
971 | int res = 0; |
|
|
972 | |
1734 | |
973 | X_LOCK (wrklock); |
1735 | req->result = -1; |
974 | /* the corresponding closedir is in ETP_WORKER_CLEAR */ |
|
|
975 | self->dirp = dirp = opendir (req->ptr1); |
|
|
976 | req->flags |= EIO_FLAG_PTR2_FREE; |
|
|
977 | req->ptr2 = names = malloc (memlen); |
|
|
978 | X_UNLOCK (wrklock); |
|
|
979 | |
1736 | |
980 | if (dirp && names) |
1737 | if (!(flags & EIO_READDIR_DENTS)) |
981 | for (;;) |
1738 | flags &= ~(EIO_READDIR_DIRS_FIRST | EIO_READDIR_STAT_ORDER); |
|
|
1739 | |
|
|
1740 | #ifdef _WIN32 |
|
|
1741 | { |
|
|
1742 | int len = strlen ((const char *)req->ptr1); |
|
|
1743 | char *path = malloc (MAX_PATH); |
|
|
1744 | const char *fmt; |
|
|
1745 | const char *reqpath = wd_expand (&self->tmpbuf, req->wd, req->ptr1); |
|
|
1746 | |
|
|
1747 | if (!len) |
|
|
1748 | fmt = "./*"; |
|
|
1749 | else if (reqpath[len - 1] == '/' || reqpath[len - 1] == '\\') |
|
|
1750 | fmt = "%s*"; |
|
|
1751 | else |
|
|
1752 | fmt = "%s/*"; |
|
|
1753 | |
|
|
1754 | _snprintf (path, MAX_PATH, fmt, reqpath); |
|
|
1755 | dirp = FindFirstFile (path, &entp); |
|
|
1756 | free (path); |
|
|
1757 | |
|
|
1758 | if (dirp == INVALID_HANDLE_VALUE) |
|
|
1759 | { |
|
|
1760 | /* should steal _dosmaperr */ |
|
|
1761 | switch (GetLastError ()) |
|
|
1762 | { |
|
|
1763 | case ERROR_FILE_NOT_FOUND: |
|
|
1764 | req->result = 0; |
|
|
1765 | break; |
|
|
1766 | |
|
|
1767 | case ERROR_INVALID_NAME: |
|
|
1768 | case ERROR_PATH_NOT_FOUND: |
|
|
1769 | case ERROR_NO_MORE_FILES: |
|
|
1770 | errno = ENOENT; |
|
|
1771 | break; |
|
|
1772 | |
|
|
1773 | case ERROR_NOT_ENOUGH_MEMORY: |
|
|
1774 | errno = ENOMEM; |
|
|
1775 | break; |
|
|
1776 | |
|
|
1777 | default: |
|
|
1778 | errno = EINVAL; |
|
|
1779 | break; |
|
|
1780 | } |
|
|
1781 | |
|
|
1782 | return; |
|
|
1783 | } |
|
|
1784 | } |
|
|
1785 | #else |
|
|
1786 | #if HAVE_AT |
|
|
1787 | if (req->wd) |
982 | { |
1788 | { |
|
|
1789 | int fd = openat (WD2FD (req->wd), req->ptr1, O_CLOEXEC | O_SEARCH | O_DIRECTORY); |
|
|
1790 | |
|
|
1791 | if (fd < 0) |
|
|
1792 | return; |
|
|
1793 | |
|
|
1794 | dirp = fdopendir (fd); |
|
|
1795 | |
|
|
1796 | if (!dirp) |
|
|
1797 | close (fd); |
|
|
1798 | } |
|
|
1799 | else |
|
|
1800 | dirp = opendir (req->ptr1); |
|
|
1801 | #else |
|
|
1802 | dirp = opendir (wd_expand (&self->tmpbuf, req->wd, req->ptr1)); |
|
|
1803 | #endif |
|
|
1804 | |
|
|
1805 | if (!dirp) |
|
|
1806 | return; |
|
|
1807 | #endif |
|
|
1808 | |
|
|
1809 | if (req->flags & EIO_FLAG_PTR1_FREE) |
|
|
1810 | free (req->ptr1); |
|
|
1811 | |
|
|
1812 | req->flags |= EIO_FLAG_PTR1_FREE | EIO_FLAG_PTR2_FREE; |
|
|
1813 | req->ptr1 = dents = flags ? malloc (dentalloc * sizeof (eio_dirent)) : 0; |
|
|
1814 | req->ptr2 = names = malloc (namesalloc); |
|
|
1815 | |
|
|
1816 | if (!names || (flags && !dents)) |
|
|
1817 | return; |
|
|
1818 | |
|
|
1819 | for (;;) |
|
|
1820 | { |
|
|
1821 | int done; |
|
|
1822 | |
|
|
1823 | #ifdef _WIN32 |
|
|
1824 | done = !dirp; |
|
|
1825 | #else |
983 | errno = 0; |
1826 | errno = 0; |
984 | entp = readdir (dirp); |
1827 | entp = readdir (dirp); |
|
|
1828 | done = !entp; |
|
|
1829 | #endif |
985 | |
1830 | |
|
|
1831 | if (done) |
|
|
1832 | { |
|
|
1833 | #ifndef _WIN32 |
|
|
1834 | int old_errno = errno; |
|
|
1835 | closedir (dirp); |
|
|
1836 | errno = old_errno; |
|
|
1837 | |
986 | if (!entp) |
1838 | if (errno) |
|
|
1839 | break; |
|
|
1840 | #endif |
|
|
1841 | |
|
|
1842 | /* sort etc. */ |
|
|
1843 | req->int1 = flags; |
|
|
1844 | req->result = dentoffs; |
|
|
1845 | |
|
|
1846 | if (flags & EIO_READDIR_STAT_ORDER) |
|
|
1847 | eio_dent_sort (dents, dentoffs, flags & EIO_READDIR_DIRS_FIRST ? 7 : 0, inode_bits); |
|
|
1848 | else if (flags & EIO_READDIR_DIRS_FIRST) |
|
|
1849 | if (flags & EIO_READDIR_FOUND_UNKNOWN) |
|
|
1850 | eio_dent_sort (dents, dentoffs, 7, inode_bits); /* sort by score and inode */ |
|
|
1851 | else |
|
|
1852 | { |
|
|
1853 | /* in this case, all is known, and we just put dirs first and sort them */ |
|
|
1854 | eio_dirent *oth = dents + dentoffs; |
|
|
1855 | eio_dirent *dir = dents; |
|
|
1856 | |
|
|
1857 | /* now partition dirs to the front, and non-dirs to the back */ |
|
|
1858 | /* by walking from both sides and swapping if necessary */ |
|
|
1859 | while (oth > dir) |
|
|
1860 | { |
|
|
1861 | if (dir->type == EIO_DT_DIR) |
|
|
1862 | ++dir; |
|
|
1863 | else if ((--oth)->type == EIO_DT_DIR) |
|
|
1864 | { |
|
|
1865 | eio_dirent tmp = *dir; *dir = *oth; *oth = tmp; |
|
|
1866 | |
|
|
1867 | ++dir; |
|
|
1868 | } |
|
|
1869 | } |
|
|
1870 | |
|
|
1871 | /* now sort the dirs only (dirs all have the same score) */ |
|
|
1872 | eio_dent_sort (dents, dir - dents, 0, inode_bits); |
|
|
1873 | } |
|
|
1874 | |
987 | break; |
1875 | break; |
|
|
1876 | } |
988 | |
1877 | |
989 | name = entp->d_name; |
1878 | /* now add the entry to our list(s) */ |
|
|
1879 | name = D_NAME (entp); |
990 | |
1880 | |
|
|
1881 | /* skip . and .. entries */ |
991 | if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2]))) |
1882 | if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2]))) |
992 | { |
1883 | { |
993 | int len = strlen (name) + 1; |
1884 | int len = D_NAMLEN (entp) + 1; |
994 | |
1885 | |
995 | res++; |
1886 | while (ecb_expect_false (namesoffs + len > namesalloc)) |
996 | |
|
|
997 | while (memofs + len > memlen) |
|
|
998 | { |
1887 | { |
999 | memlen *= 2; |
1888 | namesalloc *= 2; |
1000 | X_LOCK (wrklock); |
|
|
1001 | req->ptr2 = names = realloc (names, memlen); |
1889 | req->ptr2 = names = realloc (names, namesalloc); |
1002 | X_UNLOCK (wrklock); |
|
|
1003 | |
1890 | |
1004 | if (!names) |
1891 | if (!names) |
|
|
1892 | break; |
|
|
1893 | } |
|
|
1894 | |
|
|
1895 | memcpy (names + namesoffs, name, len); |
|
|
1896 | |
|
|
1897 | if (dents) |
|
|
1898 | { |
|
|
1899 | struct eio_dirent *ent; |
|
|
1900 | |
|
|
1901 | if (ecb_expect_false (dentoffs == dentalloc)) |
|
|
1902 | { |
|
|
1903 | dentalloc *= 2; |
|
|
1904 | req->ptr1 = dents = realloc (dents, dentalloc * sizeof (eio_dirent)); |
|
|
1905 | |
|
|
1906 | if (!dents) |
1005 | break; |
1907 | break; |
1006 | } |
1908 | } |
1007 | |
1909 | |
1008 | memcpy (names + memofs, name, len); |
1910 | ent = dents + dentoffs; |
1009 | memofs += len; |
1911 | |
|
|
1912 | ent->nameofs = namesoffs; /* rather dirtily we store the offset in the pointer */ |
|
|
1913 | ent->namelen = len - 1; |
|
|
1914 | ent->inode = D_INO (entp); |
|
|
1915 | |
|
|
1916 | inode_bits |= ent->inode; |
|
|
1917 | |
|
|
1918 | switch (D_TYPE (entp)) |
|
|
1919 | { |
|
|
1920 | default: |
|
|
1921 | ent->type = EIO_DT_UNKNOWN; |
|
|
1922 | flags |= EIO_READDIR_FOUND_UNKNOWN; |
|
|
1923 | break; |
|
|
1924 | |
|
|
1925 | #ifdef DT_FIFO |
|
|
1926 | case DT_FIFO: ent->type = EIO_DT_FIFO; break; |
|
|
1927 | #endif |
|
|
1928 | #ifdef DT_CHR |
|
|
1929 | case DT_CHR: ent->type = EIO_DT_CHR; break; |
|
|
1930 | #endif |
|
|
1931 | #ifdef DT_MPC |
|
|
1932 | case DT_MPC: ent->type = EIO_DT_MPC; break; |
|
|
1933 | #endif |
|
|
1934 | #ifdef DT_DIR |
|
|
1935 | case DT_DIR: ent->type = EIO_DT_DIR; break; |
|
|
1936 | #endif |
|
|
1937 | #ifdef DT_NAM |
|
|
1938 | case DT_NAM: ent->type = EIO_DT_NAM; break; |
|
|
1939 | #endif |
|
|
1940 | #ifdef DT_BLK |
|
|
1941 | case DT_BLK: ent->type = EIO_DT_BLK; break; |
|
|
1942 | #endif |
|
|
1943 | #ifdef DT_MPB |
|
|
1944 | case DT_MPB: ent->type = EIO_DT_MPB; break; |
|
|
1945 | #endif |
|
|
1946 | #ifdef DT_REG |
|
|
1947 | case DT_REG: ent->type = EIO_DT_REG; break; |
|
|
1948 | #endif |
|
|
1949 | #ifdef DT_NWK |
|
|
1950 | case DT_NWK: ent->type = EIO_DT_NWK; break; |
|
|
1951 | #endif |
|
|
1952 | #ifdef DT_CMP |
|
|
1953 | case DT_CMP: ent->type = EIO_DT_CMP; break; |
|
|
1954 | #endif |
|
|
1955 | #ifdef DT_LNK |
|
|
1956 | case DT_LNK: ent->type = EIO_DT_LNK; break; |
|
|
1957 | #endif |
|
|
1958 | #ifdef DT_SOCK |
|
|
1959 | case DT_SOCK: ent->type = EIO_DT_SOCK; break; |
|
|
1960 | #endif |
|
|
1961 | #ifdef DT_DOOR |
|
|
1962 | case DT_DOOR: ent->type = EIO_DT_DOOR; break; |
|
|
1963 | #endif |
|
|
1964 | #ifdef DT_WHT |
|
|
1965 | case DT_WHT: ent->type = EIO_DT_WHT; break; |
|
|
1966 | #endif |
|
|
1967 | } |
|
|
1968 | |
|
|
1969 | ent->score = 7; |
|
|
1970 | |
|
|
1971 | if (flags & EIO_READDIR_DIRS_FIRST) |
|
|
1972 | { |
|
|
1973 | if (ent->type == EIO_DT_UNKNOWN) |
|
|
1974 | { |
|
|
1975 | if (*name == '.') /* leading dots are likely directories, and, in any case, rare */ |
|
|
1976 | ent->score = 1; |
|
|
1977 | else if (!strchr (name, '.')) /* absence of dots indicate likely dirs */ |
|
|
1978 | ent->score = len <= 2 ? 4 - len : len <= 4 ? 4 : len <= 7 ? 5 : 6; /* shorter == more likely dir, but avoid too many classes */ |
|
|
1979 | } |
|
|
1980 | else if (ent->type == EIO_DT_DIR) |
|
|
1981 | ent->score = 0; |
|
|
1982 | } |
1010 | } |
1983 | } |
|
|
1984 | |
|
|
1985 | namesoffs += len; |
|
|
1986 | ++dentoffs; |
1011 | } |
1987 | } |
1012 | |
1988 | |
1013 | if (errno) |
1989 | if (EIO_CANCELLED (req)) |
1014 | res = -1; |
1990 | { |
|
|
1991 | errno = ECANCELED; |
|
|
1992 | break; |
|
|
1993 | } |
|
|
1994 | |
|
|
1995 | #ifdef _WIN32 |
|
|
1996 | if (!FindNextFile (dirp, &entp)) |
|
|
1997 | { |
|
|
1998 | FindClose (dirp); |
|
|
1999 | dirp = 0; |
|
|
2000 | } |
|
|
2001 | #endif |
|
|
2002 | } |
|
|
2003 | } |
|
|
2004 | |
|
|
2005 | /*****************************************************************************/ |
|
|
2006 | /* working directory stuff */ |
|
|
2007 | /* various deficiencies in the posix 2008 api force us to */ |
|
|
2008 | /* keep the absolute path in string form at all times */ |
|
|
2009 | /* fuck yeah. */ |
|
|
2010 | |
|
|
2011 | #if !HAVE_AT |
|
|
2012 | |
|
|
2013 | /* a bit like realpath, but usually faster because it doesn'T have to return */ |
|
|
2014 | /* an absolute or canonical path */ |
|
|
2015 | static const char * |
|
|
2016 | wd_expand (struct tmpbuf *tmpbuf, eio_wd wd, const char *path) |
|
|
2017 | { |
|
|
2018 | if (!wd || *path == '/') |
|
|
2019 | return path; |
|
|
2020 | |
|
|
2021 | if (path [0] == '.' && !path [1]) |
|
|
2022 | return wd->str; |
|
|
2023 | |
1015 | |
2024 | { |
1016 | req->result = res; |
2025 | int l1 = wd->len; |
1017 | } |
2026 | int l2 = strlen (path); |
1018 | |
2027 | |
1019 | #if !(_POSIX_MAPPED_FILES && _POSIX_SYNCHRONIZED_IO) |
2028 | char *res = tmpbuf_get (tmpbuf, l1 + l2 + 2); |
1020 | # undef msync |
|
|
1021 | # define msync(a,b,c) ENOSYS |
|
|
1022 | #endif |
|
|
1023 | |
2029 | |
1024 | int |
2030 | memcpy (res, wd->str, l1); |
1025 | eio__mtouch (void *mem, size_t len, int flags) |
2031 | res [l1] = '/'; |
1026 | { |
2032 | memcpy (res + l1 + 1, path, l2 + 1); |
1027 | intptr_t addr = (intptr_t)mem; |
|
|
1028 | intptr_t end = addr + len; |
|
|
1029 | #ifdef PAGESIZE |
|
|
1030 | const intptr_t page = PAGESIZE; |
|
|
1031 | #else |
|
|
1032 | static intptr_t page; |
|
|
1033 | |
2033 | |
1034 | if (!page) |
2034 | return res; |
1035 | page = sysconf (_SC_PAGESIZE); |
2035 | } |
1036 | #endif |
2036 | } |
1037 | |
2037 | |
1038 | addr &= ~(page - 1); /* assume page size is always a power of two */ |
2038 | #endif |
1039 | |
2039 | |
1040 | if (addr < end) |
2040 | static eio_wd |
1041 | if (flags) /* modify */ |
2041 | eio__wd_open_sync (struct tmpbuf *tmpbuf, eio_wd wd, const char *path) |
1042 | do { *((volatile sig_atomic_t *)addr) |= 0; } while ((addr += page) < len); |
2042 | { |
1043 | else |
2043 | int fd; |
1044 | do { *((volatile sig_atomic_t *)addr) ; } while ((addr += page) < len); |
2044 | eio_wd res; |
|
|
2045 | int len = eio__realpath (tmpbuf, wd, path); |
1045 | |
2046 | |
|
|
2047 | if (len < 0) |
|
|
2048 | return EIO_INVALID_WD; |
|
|
2049 | |
|
|
2050 | #if HAVE_AT |
|
|
2051 | fd = openat (WD2FD (wd), path, O_CLOEXEC | O_SEARCH | O_DIRECTORY); |
|
|
2052 | |
|
|
2053 | if (fd < 0) |
|
|
2054 | return EIO_INVALID_WD; |
|
|
2055 | #endif |
|
|
2056 | |
|
|
2057 | res = malloc (sizeof (*res) + len); /* one extra 0-byte */ |
|
|
2058 | |
|
|
2059 | #if HAVE_AT |
|
|
2060 | res->fd = fd; |
|
|
2061 | #endif |
|
|
2062 | |
|
|
2063 | res->len = len; |
|
|
2064 | memcpy (res->str, tmpbuf->ptr, len); |
|
|
2065 | res->str [len] = 0; |
|
|
2066 | |
|
|
2067 | return res; |
|
|
2068 | } |
|
|
2069 | |
|
|
2070 | eio_wd |
|
|
2071 | eio_wd_open_sync (eio_wd wd, const char *path) |
|
|
2072 | { |
|
|
2073 | struct tmpbuf tmpbuf = { 0 }; |
|
|
2074 | wd = eio__wd_open_sync (&tmpbuf, wd, path); |
|
|
2075 | free (tmpbuf.ptr); |
|
|
2076 | |
1046 | return 0; |
2077 | return wd; |
1047 | } |
2078 | } |
|
|
2079 | |
|
|
2080 | void |
|
|
2081 | eio_wd_close_sync (eio_wd wd) |
|
|
2082 | { |
|
|
2083 | if (wd != EIO_INVALID_WD && wd != EIO_CWD) |
|
|
2084 | { |
|
|
2085 | #if HAVE_AT |
|
|
2086 | close (wd->fd); |
|
|
2087 | #endif |
|
|
2088 | free (wd); |
|
|
2089 | } |
|
|
2090 | } |
|
|
2091 | |
|
|
2092 | #if HAVE_AT |
|
|
2093 | |
|
|
2094 | /* they forgot these */ |
|
|
2095 | |
|
|
2096 | static int |
|
|
2097 | eio__truncateat (int dirfd, const char *path, off_t length) |
|
|
2098 | { |
|
|
2099 | int fd = openat (dirfd, path, O_WRONLY | O_CLOEXEC); |
|
|
2100 | int res; |
|
|
2101 | |
|
|
2102 | if (fd < 0) |
|
|
2103 | return fd; |
|
|
2104 | |
|
|
2105 | res = ftruncate (fd, length); |
|
|
2106 | close (fd); |
|
|
2107 | return res; |
|
|
2108 | } |
|
|
2109 | |
|
|
2110 | static int |
|
|
2111 | eio__statvfsat (int dirfd, const char *path, struct statvfs *buf) |
|
|
2112 | { |
|
|
2113 | int fd = openat (dirfd, path, O_SEARCH | O_CLOEXEC); |
|
|
2114 | int res; |
|
|
2115 | |
|
|
2116 | if (fd < 0) |
|
|
2117 | return fd; |
|
|
2118 | |
|
|
2119 | res = fstatvfs (fd, buf); |
|
|
2120 | close (fd); |
|
|
2121 | return res; |
|
|
2122 | |
|
|
2123 | } |
|
|
2124 | |
|
|
2125 | #endif |
1048 | |
2126 | |
1049 | /*****************************************************************************/ |
2127 | /*****************************************************************************/ |
1050 | |
2128 | |
1051 | #define ALLOC(len) \ |
2129 | #define ALLOC(len) \ |
1052 | if (!req->ptr2) \ |
2130 | if (!req->ptr2) \ |
… | |
… | |
1061 | req->result = -1; \ |
2139 | req->result = -1; \ |
1062 | break; \ |
2140 | break; \ |
1063 | } \ |
2141 | } \ |
1064 | } |
2142 | } |
1065 | |
2143 | |
|
|
2144 | static void ecb_noinline ecb_cold |
|
|
2145 | etp_proc_init (void) |
|
|
2146 | { |
|
|
2147 | #if HAVE_PRCTL_SET_NAME |
|
|
2148 | /* provide a more sensible "thread name" */ |
|
|
2149 | char name[16 + 1]; |
|
|
2150 | const int namelen = sizeof (name) - 1; |
|
|
2151 | int len; |
|
|
2152 | |
|
|
2153 | prctl (PR_GET_NAME, (unsigned long)name, 0, 0, 0); |
|
|
2154 | name [namelen] = 0; |
|
|
2155 | len = strlen (name); |
|
|
2156 | strcpy (name + (len <= namelen - 4 ? len : namelen - 4), "/eio"); |
|
|
2157 | prctl (PR_SET_NAME, (unsigned long)name, 0, 0, 0); |
|
|
2158 | #endif |
|
|
2159 | } |
|
|
2160 | |
1066 | X_THREAD_PROC (etp_proc) |
2161 | X_THREAD_PROC (etp_proc) |
1067 | { |
2162 | { |
1068 | ETP_REQ *req; |
2163 | ETP_REQ *req; |
1069 | struct timespec ts; |
2164 | struct timespec ts; |
1070 | etp_worker *self = (etp_worker *)thr_arg; |
2165 | etp_worker *self = (etp_worker *)thr_arg; |
1071 | |
2166 | |
|
|
2167 | etp_proc_init (); |
|
|
2168 | |
1072 | /* try to distribute timeouts somewhat randomly */ |
2169 | /* try to distribute timeouts somewhat evenly */ |
1073 | ts.tv_nsec = ((unsigned long)self & 1023UL) * (1000000000UL / 1024UL); |
2170 | ts.tv_nsec = ((unsigned long)self & 1023UL) * (1000000000UL / 1024UL); |
1074 | |
2171 | |
1075 | for (;;) |
2172 | for (;;) |
1076 | { |
2173 | { |
|
|
2174 | ts.tv_sec = 0; |
|
|
2175 | |
1077 | X_LOCK (reqlock); |
2176 | X_LOCK (reqlock); |
1078 | |
2177 | |
1079 | for (;;) |
2178 | for (;;) |
1080 | { |
2179 | { |
1081 | self->req = req = reqq_shift (&req_queue); |
2180 | req = reqq_shift (&req_queue); |
1082 | |
2181 | |
1083 | if (req) |
2182 | if (req) |
1084 | break; |
2183 | break; |
1085 | |
2184 | |
|
|
2185 | if (ts.tv_sec == 1) /* no request, but timeout detected, let's quit */ |
|
|
2186 | { |
|
|
2187 | X_UNLOCK (reqlock); |
|
|
2188 | X_LOCK (wrklock); |
|
|
2189 | --started; |
|
|
2190 | X_UNLOCK (wrklock); |
|
|
2191 | goto quit; |
|
|
2192 | } |
|
|
2193 | |
1086 | ++idle; |
2194 | ++idle; |
1087 | |
2195 | |
1088 | ts.tv_sec = time (0) + IDLE_TIMEOUT; |
2196 | if (idle <= max_idle) |
1089 | if (X_COND_TIMEDWAIT (reqwait, reqlock, ts) == ETIMEDOUT) |
2197 | /* we are allowed to idle, so do so without any timeout */ |
|
|
2198 | X_COND_WAIT (reqwait, reqlock); |
|
|
2199 | else |
1090 | { |
2200 | { |
1091 | if (idle > max_idle) |
2201 | /* initialise timeout once */ |
1092 | { |
2202 | if (!ts.tv_sec) |
1093 | --idle; |
2203 | ts.tv_sec = time (0) + idle_timeout; |
1094 | X_UNLOCK (reqlock); |
|
|
1095 | X_LOCK (wrklock); |
|
|
1096 | --started; |
|
|
1097 | X_UNLOCK (wrklock); |
|
|
1098 | goto quit; |
|
|
1099 | } |
|
|
1100 | |
2204 | |
1101 | /* we are allowed to idle, so do so without any timeout */ |
|
|
1102 | X_COND_WAIT (reqwait, reqlock); |
2205 | if (X_COND_TIMEDWAIT (reqwait, reqlock, ts) == ETIMEDOUT) |
|
|
2206 | ts.tv_sec = 1; /* assuming this is not a value computed above.,.. */ |
1103 | } |
2207 | } |
1104 | |
2208 | |
1105 | --idle; |
2209 | --idle; |
1106 | } |
2210 | } |
1107 | |
2211 | |
… | |
… | |
1110 | X_UNLOCK (reqlock); |
2214 | X_UNLOCK (reqlock); |
1111 | |
2215 | |
1112 | if (req->type < 0) |
2216 | if (req->type < 0) |
1113 | goto quit; |
2217 | goto quit; |
1114 | |
2218 | |
1115 | if (!EIO_CANCELLED (req)) |
|
|
1116 | ETP_EXECUTE (self, req); |
2219 | ETP_EXECUTE (self, req); |
1117 | |
2220 | |
1118 | X_LOCK (reslock); |
2221 | X_LOCK (reslock); |
1119 | |
2222 | |
1120 | ++npending; |
2223 | ++npending; |
1121 | |
2224 | |
1122 | if (!reqq_push (&res_queue, req) && want_poll_cb) |
2225 | if (!reqq_push (&res_queue, req) && want_poll_cb) |
1123 | want_poll_cb (); |
2226 | want_poll_cb (); |
1124 | |
2227 | |
1125 | self->req = 0; |
|
|
1126 | etp_worker_clear (self); |
2228 | etp_worker_clear (self); |
1127 | |
2229 | |
1128 | X_UNLOCK (reslock); |
2230 | X_UNLOCK (reslock); |
1129 | } |
2231 | } |
1130 | |
2232 | |
1131 | quit: |
2233 | quit: |
|
|
2234 | free (req); |
|
|
2235 | |
1132 | X_LOCK (wrklock); |
2236 | X_LOCK (wrklock); |
1133 | etp_worker_free (self); |
2237 | etp_worker_free (self); |
1134 | X_UNLOCK (wrklock); |
2238 | X_UNLOCK (wrklock); |
1135 | |
2239 | |
1136 | return 0; |
2240 | return 0; |
1137 | } |
2241 | } |
1138 | |
2242 | |
1139 | /*****************************************************************************/ |
2243 | /*****************************************************************************/ |
1140 | |
2244 | |
|
|
2245 | int ecb_cold |
1141 | int eio_init (void (*want_poll)(void), void (*done_poll)(void)) |
2246 | eio_init (void (*want_poll)(void), void (*done_poll)(void)) |
1142 | { |
2247 | { |
1143 | return etp_init (want_poll, done_poll); |
2248 | return etp_init (want_poll, done_poll); |
1144 | } |
2249 | } |
1145 | |
2250 | |
|
|
2251 | ecb_inline void |
1146 | static void eio_api_destroy (eio_req *req) |
2252 | eio_api_destroy (eio_req *req) |
1147 | { |
2253 | { |
1148 | free (req); |
2254 | free (req); |
1149 | } |
2255 | } |
1150 | |
2256 | |
1151 | #define REQ(rtype) \ |
2257 | #define REQ(rtype) \ |
1152 | eio_req *req; \ |
2258 | eio_req *req; \ |
1153 | \ |
2259 | \ |
1154 | req = (eio_req *)calloc (1, sizeof *req); \ |
2260 | req = (eio_req *)calloc (1, sizeof *req); \ |
1155 | if (!req) \ |
2261 | if (!req) \ |
1156 | return 0; \ |
2262 | return 0; \ |
… | |
… | |
1170 | { \ |
2276 | { \ |
1171 | eio_api_destroy (req); \ |
2277 | eio_api_destroy (req); \ |
1172 | return 0; \ |
2278 | return 0; \ |
1173 | } |
2279 | } |
1174 | |
2280 | |
|
|
2281 | #define SINGLEDOT(ptr) (0[(char *)(ptr)] == '.' && !1[(char *)(ptr)]) |
|
|
2282 | |
|
|
2283 | static void |
1175 | static void eio_execute (etp_worker *self, eio_req *req) |
2284 | eio_execute (etp_worker *self, eio_req *req) |
1176 | { |
2285 | { |
1177 | errno = 0; |
2286 | #if HAVE_AT |
|
|
2287 | int dirfd; |
|
|
2288 | #else |
|
|
2289 | const char *path; |
|
|
2290 | #endif |
|
|
2291 | |
|
|
2292 | if (ecb_expect_false (EIO_CANCELLED (req))) |
|
|
2293 | { |
|
|
2294 | req->result = -1; |
|
|
2295 | req->errorno = ECANCELED; |
|
|
2296 | return; |
|
|
2297 | } |
|
|
2298 | |
|
|
2299 | if (ecb_expect_false (req->wd == EIO_INVALID_WD)) |
|
|
2300 | { |
|
|
2301 | req->result = -1; |
|
|
2302 | req->errorno = ENOENT; |
|
|
2303 | return; |
|
|
2304 | } |
|
|
2305 | |
|
|
2306 | if (req->type >= EIO_OPEN) |
|
|
2307 | { |
|
|
2308 | #if HAVE_AT |
|
|
2309 | dirfd = WD2FD (req->wd); |
|
|
2310 | #else |
|
|
2311 | path = wd_expand (&self->tmpbuf, req->wd, req->ptr1); |
|
|
2312 | #endif |
|
|
2313 | } |
1178 | |
2314 | |
1179 | switch (req->type) |
2315 | switch (req->type) |
1180 | { |
2316 | { |
|
|
2317 | case EIO_WD_OPEN: req->wd = eio__wd_open_sync (&self->tmpbuf, req->wd, req->ptr1); |
|
|
2318 | req->result = req->wd == EIO_INVALID_WD ? -1 : 0; |
|
|
2319 | break; |
|
|
2320 | case EIO_WD_CLOSE: req->result = 0; |
|
|
2321 | eio_wd_close_sync (req->wd); break; |
|
|
2322 | |
|
|
2323 | case EIO_SEEK: eio__lseek (req); break; |
1181 | case EIO_READ: ALLOC (req->size); |
2324 | case EIO_READ: ALLOC (req->size); |
1182 | req->result = req->offs >= 0 |
2325 | req->result = req->offs >= 0 |
1183 | ? pread (req->int1, req->ptr2, req->size, req->offs) |
2326 | ? pread (req->int1, req->ptr2, req->size, req->offs) |
1184 | : read (req->int1, req->ptr2, req->size); break; |
2327 | : read (req->int1, req->ptr2, req->size); break; |
1185 | case EIO_WRITE: req->result = req->offs >= 0 |
2328 | case EIO_WRITE: req->result = req->offs >= 0 |
1186 | ? pwrite (req->int1, req->ptr2, req->size, req->offs) |
2329 | ? pwrite (req->int1, req->ptr2, req->size, req->offs) |
1187 | : write (req->int1, req->ptr2, req->size); break; |
2330 | : write (req->int1, req->ptr2, req->size); break; |
1188 | |
2331 | |
1189 | case EIO_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break; |
2332 | case EIO_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break; |
1190 | case EIO_SENDFILE: req->result = eio__sendfile (req->int1, req->int2, req->offs, req->size, self); break; |
2333 | case EIO_SENDFILE: req->result = eio__sendfile (req->int1, req->int2, req->offs, req->size); break; |
|
|
2334 | |
|
|
2335 | #if HAVE_AT |
1191 | |
2336 | |
1192 | case EIO_STAT: ALLOC (sizeof (EIO_STRUCT_STAT)); |
2337 | case EIO_STAT: ALLOC (sizeof (EIO_STRUCT_STAT)); |
1193 | req->result = stat (req->ptr1, (EIO_STRUCT_STAT *)req->ptr2); break; |
2338 | req->result = fstatat (dirfd, req->ptr1, (EIO_STRUCT_STAT *)req->ptr2, 0); break; |
1194 | case EIO_LSTAT: ALLOC (sizeof (EIO_STRUCT_STAT)); |
2339 | case EIO_LSTAT: ALLOC (sizeof (EIO_STRUCT_STAT)); |
1195 | req->result = lstat (req->ptr1, (EIO_STRUCT_STAT *)req->ptr2); break; |
2340 | req->result = fstatat (dirfd, req->ptr1, (EIO_STRUCT_STAT *)req->ptr2, AT_SYMLINK_NOFOLLOW); break; |
1196 | case EIO_FSTAT: ALLOC (sizeof (EIO_STRUCT_STAT)); |
|
|
1197 | req->result = fstat (req->int1, (EIO_STRUCT_STAT *)req->ptr2); break; |
|
|
1198 | |
|
|
1199 | case EIO_CHOWN: req->result = chown (req->ptr1, req->int2, req->int3); break; |
2341 | case EIO_CHOWN: req->result = fchownat (dirfd, req->ptr1, req->int2, req->int3, 0); break; |
1200 | case EIO_FCHOWN: req->result = fchown (req->int1, req->int2, req->int3); break; |
|
|
1201 | case EIO_CHMOD: req->result = chmod (req->ptr1, (mode_t)req->int2); break; |
2342 | case EIO_CHMOD: req->result = fchmodat (dirfd, req->ptr1, (mode_t)req->int2, 0); break; |
1202 | case EIO_FCHMOD: req->result = fchmod (req->int1, (mode_t)req->int2); break; |
|
|
1203 | case EIO_TRUNCATE: req->result = truncate (req->ptr1, req->offs); break; |
2343 | case EIO_TRUNCATE: req->result = eio__truncateat (dirfd, req->ptr1, req->offs); break; |
1204 | case EIO_FTRUNCATE: req->result = ftruncate (req->int1, req->offs); break; |
|
|
1205 | |
|
|
1206 | case EIO_OPEN: req->result = open (req->ptr1, req->int1, (mode_t)req->int2); break; |
2344 | case EIO_OPEN: req->result = openat (dirfd, req->ptr1, req->int1, (mode_t)req->int2); break; |
1207 | case EIO_CLOSE: req->result = close (req->int1); break; |
2345 | |
1208 | case EIO_DUP2: req->result = dup2 (req->int1, req->int2); break; |
|
|
1209 | case EIO_UNLINK: req->result = unlink (req->ptr1); break; |
2346 | case EIO_UNLINK: req->result = unlinkat (dirfd, req->ptr1, 0); break; |
1210 | case EIO_RMDIR: req->result = rmdir (req->ptr1); break; |
2347 | case EIO_RMDIR: /* complications arise because "." cannot be removed, so we might have to expand */ |
|
|
2348 | req->result = req->wd && SINGLEDOT (req->ptr1) |
|
|
2349 | ? rmdir (req->wd->str) |
|
|
2350 | : unlinkat (dirfd, req->ptr1, AT_REMOVEDIR); break; |
1211 | case EIO_MKDIR: req->result = mkdir (req->ptr1, (mode_t)req->int2); break; |
2351 | case EIO_MKDIR: req->result = mkdirat (dirfd, req->ptr1, (mode_t)req->int2); break; |
1212 | case EIO_RENAME: req->result = rename (req->ptr1, req->ptr2); break; |
2352 | case EIO_RENAME: /* complications arise because "." cannot be renamed, so we might have to expand */ |
|
|
2353 | req->result = req->wd && SINGLEDOT (req->ptr1) |
|
|
2354 | ? rename (req->wd->str, req->ptr2) |
|
|
2355 | : renameat (dirfd, req->ptr1, WD2FD ((eio_wd)req->int3), req->ptr2); break; |
1213 | case EIO_LINK: req->result = link (req->ptr1, req->ptr2); break; |
2356 | case EIO_LINK: req->result = linkat (dirfd, req->ptr1, WD2FD ((eio_wd)req->int3), req->ptr2, 0); break; |
1214 | case EIO_SYMLINK: req->result = symlink (req->ptr1, req->ptr2); break; |
2357 | case EIO_SYMLINK: req->result = symlinkat (req->ptr1, dirfd, req->ptr2); break; |
1215 | case EIO_MKNOD: req->result = mknod (req->ptr1, (mode_t)req->int2, (dev_t)req->int3); break; |
2358 | case EIO_MKNOD: req->result = mknodat (dirfd, req->ptr1, (mode_t)req->int2, (dev_t)req->offs); break; |
1216 | |
|
|
1217 | case EIO_READLINK: ALLOC (NAME_MAX); |
2359 | case EIO_READLINK: ALLOC (PATH_MAX); |
1218 | req->result = readlink (req->ptr1, req->ptr2, NAME_MAX); break; |
2360 | req->result = readlinkat (dirfd, req->ptr1, req->ptr2, PATH_MAX); break; |
1219 | |
2361 | case EIO_STATVFS: ALLOC (sizeof (EIO_STRUCT_STATVFS)); |
1220 | case EIO_SYNC: req->result = 0; sync (); break; |
2362 | req->result = eio__statvfsat (dirfd, req->ptr1, (EIO_STRUCT_STATVFS *)req->ptr2); break; |
1221 | case EIO_FSYNC: req->result = fsync (req->int1); break; |
|
|
1222 | case EIO_FDATASYNC: req->result = fdatasync (req->int1); break; |
|
|
1223 | case EIO_MSYNC: req->result = msync (req->ptr2, req->size, req->int1); break; |
|
|
1224 | case EIO_MTOUCH: req->result = eio__mtouch (req->ptr2, req->size, req->int1); break; |
|
|
1225 | case EIO_SYNC_FILE_RANGE: req->result = eio__sync_file_range (req->int1, req->offs, req->size, req->int2); break; |
|
|
1226 | |
|
|
1227 | case EIO_READDIR: eio__scandir (req, self); break; |
|
|
1228 | |
|
|
1229 | case EIO_BUSY: |
2363 | case EIO_UTIME: |
1230 | #ifdef _WIN32 |
2364 | case EIO_FUTIME: |
1231 | Sleep (req->nv1 * 1000.); |
2365 | { |
|
|
2366 | struct timespec ts[2]; |
|
|
2367 | struct timespec *times; |
|
|
2368 | |
|
|
2369 | if (req->nv1 != -1. || req->nv2 != -1.) |
|
|
2370 | { |
|
|
2371 | ts[0].tv_sec = req->nv1; |
|
|
2372 | ts[0].tv_nsec = (req->nv1 - ts[0].tv_sec) * 1e9; |
|
|
2373 | ts[1].tv_sec = req->nv2; |
|
|
2374 | ts[1].tv_nsec = (req->nv2 - ts[1].tv_sec) * 1e9; |
|
|
2375 | |
|
|
2376 | times = ts; |
|
|
2377 | } |
|
|
2378 | else |
|
|
2379 | times = 0; |
|
|
2380 | |
|
|
2381 | req->result = req->type == EIO_FUTIME |
|
|
2382 | ? futimens (req->int1, times) |
|
|
2383 | : utimensat (dirfd, req->ptr1, times, 0); |
|
|
2384 | } |
|
|
2385 | break; |
|
|
2386 | |
1232 | #else |
2387 | #else |
1233 | { |
|
|
1234 | struct timeval tv; |
|
|
1235 | |
2388 | |
1236 | tv.tv_sec = req->nv1; |
2389 | case EIO_STAT: ALLOC (sizeof (EIO_STRUCT_STAT)); |
1237 | tv.tv_usec = (req->nv1 - tv.tv_sec) * 1000000.; |
2390 | req->result = stat (path , (EIO_STRUCT_STAT *)req->ptr2); break; |
|
|
2391 | case EIO_LSTAT: ALLOC (sizeof (EIO_STRUCT_STAT)); |
|
|
2392 | req->result = lstat (path , (EIO_STRUCT_STAT *)req->ptr2); break; |
|
|
2393 | case EIO_CHOWN: req->result = chown (path , req->int2, req->int3); break; |
|
|
2394 | case EIO_CHMOD: req->result = chmod (path , (mode_t)req->int2); break; |
|
|
2395 | case EIO_TRUNCATE: req->result = truncate (path , req->offs); break; |
|
|
2396 | case EIO_OPEN: req->result = open (path , req->int1, (mode_t)req->int2); break; |
1238 | |
2397 | |
1239 | req->result = select (0, 0, 0, 0, &tv); |
2398 | case EIO_UNLINK: req->result = unlink (path ); break; |
1240 | } |
2399 | case EIO_RMDIR: req->result = rmdir (path ); break; |
1241 | #endif |
2400 | case EIO_MKDIR: req->result = mkdir (path , (mode_t)req->int2); break; |
1242 | break; |
2401 | case EIO_RENAME: req->result = rename (path , req->ptr2); break; |
|
|
2402 | case EIO_LINK: req->result = link (path , req->ptr2); break; |
|
|
2403 | case EIO_SYMLINK: req->result = symlink (path , req->ptr2); break; |
|
|
2404 | case EIO_MKNOD: req->result = mknod (path , (mode_t)req->int2, (dev_t)req->offs); break; |
|
|
2405 | case EIO_READLINK: ALLOC (PATH_MAX); |
|
|
2406 | req->result = readlink (path, req->ptr2, PATH_MAX); break; |
|
|
2407 | case EIO_STATVFS: ALLOC (sizeof (EIO_STRUCT_STATVFS)); |
|
|
2408 | req->result = statvfs (path , (EIO_STRUCT_STATVFS *)req->ptr2); break; |
1243 | |
2409 | |
1244 | case EIO_UTIME: |
2410 | case EIO_UTIME: |
1245 | case EIO_FUTIME: |
2411 | case EIO_FUTIME: |
1246 | { |
2412 | { |
1247 | struct timeval tv[2]; |
2413 | struct timeval tv[2]; |
1248 | struct timeval *times; |
2414 | struct timeval *times; |
1249 | |
2415 | |
1250 | if (req->nv1 != -1. || req->nv2 != -1.) |
2416 | if (req->nv1 != -1. || req->nv2 != -1.) |
1251 | { |
2417 | { |
1252 | tv[0].tv_sec = req->nv1; |
2418 | tv[0].tv_sec = req->nv1; |
1253 | tv[0].tv_usec = (req->nv1 - tv[0].tv_sec) * 1000000.; |
2419 | tv[0].tv_usec = (req->nv1 - tv[0].tv_sec) * 1e6; |
1254 | tv[1].tv_sec = req->nv2; |
2420 | tv[1].tv_sec = req->nv2; |
1255 | tv[1].tv_usec = (req->nv2 - tv[1].tv_sec) * 1000000.; |
2421 | tv[1].tv_usec = (req->nv2 - tv[1].tv_sec) * 1e6; |
1256 | |
2422 | |
1257 | times = tv; |
2423 | times = tv; |
1258 | } |
2424 | } |
1259 | else |
2425 | else |
1260 | times = 0; |
2426 | times = 0; |
1261 | |
|
|
1262 | |
2427 | |
1263 | req->result = req->type == EIO_FUTIME |
2428 | req->result = req->type == EIO_FUTIME |
1264 | ? futimes (req->int1, times) |
2429 | ? futimes (req->int1, times) |
1265 | : utimes (req->ptr1, times); |
2430 | : utimes (req->ptr1, times); |
1266 | } |
2431 | } |
1267 | break; |
2432 | break; |
1268 | |
2433 | |
|
|
2434 | #endif |
|
|
2435 | |
|
|
2436 | case EIO_REALPATH: if (0 <= (req->result = eio__realpath (&self->tmpbuf, req->wd, req->ptr1))) |
|
|
2437 | { |
|
|
2438 | ALLOC (req->result); |
|
|
2439 | memcpy (req->ptr2, self->tmpbuf.ptr, req->result); |
|
|
2440 | } |
|
|
2441 | break; |
|
|
2442 | |
|
|
2443 | case EIO_FSTAT: ALLOC (sizeof (EIO_STRUCT_STAT)); |
|
|
2444 | req->result = fstat (req->int1, (EIO_STRUCT_STAT *)req->ptr2); break; |
|
|
2445 | |
|
|
2446 | case EIO_FSTATVFS: ALLOC (sizeof (EIO_STRUCT_STATVFS)); |
|
|
2447 | req->result = fstatvfs (req->int1, (EIO_STRUCT_STATVFS *)req->ptr2); break; |
|
|
2448 | |
|
|
2449 | case EIO_FCHOWN: req->result = fchown (req->int1, req->int2, req->int3); break; |
|
|
2450 | case EIO_FCHMOD: req->result = fchmod (req->int1, (mode_t)req->int2); break; |
|
|
2451 | case EIO_FTRUNCATE: req->result = ftruncate (req->int1, req->offs); break; |
|
|
2452 | |
|
|
2453 | case EIO_CLOSE: req->result = close (req->int1); break; |
|
|
2454 | case EIO_DUP2: req->result = dup2 (req->int1, req->int2); break; |
|
|
2455 | case EIO_SYNC: req->result = 0; sync (); break; |
|
|
2456 | case EIO_FSYNC: req->result = fsync (req->int1); break; |
|
|
2457 | case EIO_FDATASYNC: req->result = fdatasync (req->int1); break; |
|
|
2458 | case EIO_SYNCFS: req->result = eio__syncfs (req->int1); break; |
|
|
2459 | case EIO_SYNC_FILE_RANGE: req->result = eio__sync_file_range (req->int1, req->offs, req->size, req->int2); break; |
|
|
2460 | case EIO_MSYNC: req->result = eio__msync (req->ptr2, req->size, req->int1); break; |
|
|
2461 | case EIO_MTOUCH: req->result = eio__mtouch (req); break; |
|
|
2462 | case EIO_MLOCK: req->result = eio__mlock (req->ptr2, req->size); break; |
|
|
2463 | case EIO_MLOCKALL: req->result = eio__mlockall (req->int1); break; |
|
|
2464 | case EIO_FALLOCATE: req->result = eio__fallocate (req->int1, req->int2, req->offs, req->size); break; |
|
|
2465 | |
|
|
2466 | case EIO_READDIR: eio__scandir (req, self); break; |
|
|
2467 | |
|
|
2468 | case EIO_BUSY: |
|
|
2469 | #ifdef _WIN32 |
|
|
2470 | Sleep (req->nv1 * 1e3); |
|
|
2471 | #else |
|
|
2472 | { |
|
|
2473 | struct timeval tv; |
|
|
2474 | |
|
|
2475 | tv.tv_sec = req->nv1; |
|
|
2476 | tv.tv_usec = (req->nv1 - tv.tv_sec) * 1e6; |
|
|
2477 | |
|
|
2478 | req->result = select (0, 0, 0, 0, &tv); |
|
|
2479 | } |
|
|
2480 | #endif |
|
|
2481 | break; |
|
|
2482 | |
1269 | case EIO_GROUP: |
2483 | case EIO_GROUP: |
1270 | abort (); /* handled in eio_request */ |
2484 | abort (); /* handled in eio_request */ |
1271 | |
2485 | |
1272 | case EIO_NOP: |
2486 | case EIO_NOP: |
1273 | req->result = 0; |
2487 | req->result = 0; |
1274 | break; |
2488 | break; |
1275 | |
2489 | |
1276 | case EIO_CUSTOM: |
2490 | case EIO_CUSTOM: |
1277 | ((void (*)(eio_req *))req->feed) (req); |
2491 | req->feed (req); |
1278 | break; |
2492 | break; |
1279 | |
2493 | |
1280 | default: |
2494 | default: |
1281 | req->result = -1; |
2495 | req->result = EIO_ENOSYS (); |
1282 | break; |
2496 | break; |
1283 | } |
2497 | } |
1284 | |
2498 | |
1285 | req->errorno = errno; |
2499 | req->errorno = errno; |
1286 | } |
2500 | } |
1287 | |
2501 | |
1288 | #ifndef EIO_NO_WRAPPERS |
2502 | #ifndef EIO_NO_WRAPPERS |
1289 | |
2503 | |
|
|
2504 | eio_req *eio_wd_open (const char *path, int pri, eio_cb cb, void *data) |
|
|
2505 | { |
|
|
2506 | REQ (EIO_WD_OPEN); PATH; SEND; |
|
|
2507 | } |
|
|
2508 | |
|
|
2509 | eio_req *eio_wd_close (eio_wd wd, int pri, eio_cb cb, void *data) |
|
|
2510 | { |
|
|
2511 | REQ (EIO_WD_CLOSE); req->wd = wd; SEND; |
|
|
2512 | } |
|
|
2513 | |
1290 | eio_req *eio_nop (int pri, eio_cb cb, void *data) |
2514 | eio_req *eio_nop (int pri, eio_cb cb, void *data) |
1291 | { |
2515 | { |
1292 | REQ (EIO_NOP); SEND; |
2516 | REQ (EIO_NOP); SEND; |
1293 | } |
2517 | } |
1294 | |
2518 | |
… | |
… | |
1310 | eio_req *eio_msync (void *addr, size_t length, int flags, int pri, eio_cb cb, void *data) |
2534 | eio_req *eio_msync (void *addr, size_t length, int flags, int pri, eio_cb cb, void *data) |
1311 | { |
2535 | { |
1312 | REQ (EIO_MSYNC); req->ptr2 = addr; req->size = length; req->int1 = flags; SEND; |
2536 | REQ (EIO_MSYNC); req->ptr2 = addr; req->size = length; req->int1 = flags; SEND; |
1313 | } |
2537 | } |
1314 | |
2538 | |
|
|
2539 | eio_req *eio_fdatasync (int fd, int pri, eio_cb cb, void *data) |
|
|
2540 | { |
|
|
2541 | REQ (EIO_FDATASYNC); req->int1 = fd; SEND; |
|
|
2542 | } |
|
|
2543 | |
|
|
2544 | eio_req *eio_syncfs (int fd, int pri, eio_cb cb, void *data) |
|
|
2545 | { |
|
|
2546 | REQ (EIO_SYNCFS); req->int1 = fd; SEND; |
|
|
2547 | } |
|
|
2548 | |
|
|
2549 | eio_req *eio_sync_file_range (int fd, off_t offset, size_t nbytes, unsigned int flags, int pri, eio_cb cb, void *data) |
|
|
2550 | { |
|
|
2551 | REQ (EIO_SYNC_FILE_RANGE); req->int1 = fd; req->offs = offset; req->size = nbytes; req->int2 = flags; SEND; |
|
|
2552 | } |
|
|
2553 | |
1315 | eio_req *eio_mtouch (void *addr, size_t length, int flags, int pri, eio_cb cb, void *data) |
2554 | eio_req *eio_mtouch (void *addr, size_t length, int flags, int pri, eio_cb cb, void *data) |
1316 | { |
2555 | { |
1317 | REQ (EIO_MTOUCH); req->ptr2 = addr; req->size = length; req->int1 = flags; SEND; |
2556 | REQ (EIO_MTOUCH); req->ptr2 = addr; req->size = length; req->int1 = flags; SEND; |
1318 | } |
2557 | } |
1319 | |
2558 | |
1320 | eio_req *eio_sync_file_range (int fd, off_t offset, size_t nbytes, unsigned int flags, int pri, eio_cb cb, void *data) |
2559 | eio_req *eio_mlock (void *addr, size_t length, int pri, eio_cb cb, void *data) |
1321 | { |
2560 | { |
1322 | REQ (EIO_SYNC_FILE_RANGE); req->int1 = fd; req->offs = offset; req->size = nbytes; req->int2 = flags; SEND; |
2561 | REQ (EIO_MLOCK); req->ptr2 = addr; req->size = length; SEND; |
1323 | } |
2562 | } |
1324 | |
2563 | |
1325 | eio_req *eio_fdatasync (int fd, int pri, eio_cb cb, void *data) |
2564 | eio_req *eio_mlockall (int flags, int pri, eio_cb cb, void *data) |
1326 | { |
2565 | { |
1327 | REQ (EIO_FDATASYNC); req->int1 = fd; SEND; |
2566 | REQ (EIO_MLOCKALL); req->int1 = flags; SEND; |
|
|
2567 | } |
|
|
2568 | |
|
|
2569 | eio_req *eio_fallocate (int fd, int mode, off_t offset, size_t len, int pri, eio_cb cb, void *data) |
|
|
2570 | { |
|
|
2571 | REQ (EIO_FALLOCATE); req->int1 = fd; req->int2 = mode; req->offs = offset; req->size = len; SEND; |
1328 | } |
2572 | } |
1329 | |
2573 | |
1330 | eio_req *eio_close (int fd, int pri, eio_cb cb, void *data) |
2574 | eio_req *eio_close (int fd, int pri, eio_cb cb, void *data) |
1331 | { |
2575 | { |
1332 | REQ (EIO_CLOSE); req->int1 = fd; SEND; |
2576 | REQ (EIO_CLOSE); req->int1 = fd; SEND; |
… | |
… | |
1335 | eio_req *eio_readahead (int fd, off_t offset, size_t length, int pri, eio_cb cb, void *data) |
2579 | eio_req *eio_readahead (int fd, off_t offset, size_t length, int pri, eio_cb cb, void *data) |
1336 | { |
2580 | { |
1337 | REQ (EIO_READAHEAD); req->int1 = fd; req->offs = offset; req->size = length; SEND; |
2581 | REQ (EIO_READAHEAD); req->int1 = fd; req->offs = offset; req->size = length; SEND; |
1338 | } |
2582 | } |
1339 | |
2583 | |
|
|
2584 | eio_req *eio_seek (int fd, off_t offset, int whence, int pri, eio_cb cb, void *data) |
|
|
2585 | { |
|
|
2586 | REQ (EIO_SEEK); req->int1 = fd; req->offs = offset; req->int2 = whence; SEND; |
|
|
2587 | } |
|
|
2588 | |
1340 | eio_req *eio_read (int fd, void *buf, size_t length, off_t offset, int pri, eio_cb cb, void *data) |
2589 | eio_req *eio_read (int fd, void *buf, size_t length, off_t offset, int pri, eio_cb cb, void *data) |
1341 | { |
2590 | { |
1342 | REQ (EIO_READ); req->int1 = fd; req->offs = offset; req->size = length; req->ptr2 = buf; SEND; |
2591 | REQ (EIO_READ); req->int1 = fd; req->offs = offset; req->size = length; req->ptr2 = buf; SEND; |
1343 | } |
2592 | } |
1344 | |
2593 | |
… | |
… | |
1350 | eio_req *eio_fstat (int fd, int pri, eio_cb cb, void *data) |
2599 | eio_req *eio_fstat (int fd, int pri, eio_cb cb, void *data) |
1351 | { |
2600 | { |
1352 | REQ (EIO_FSTAT); req->int1 = fd; SEND; |
2601 | REQ (EIO_FSTAT); req->int1 = fd; SEND; |
1353 | } |
2602 | } |
1354 | |
2603 | |
|
|
2604 | eio_req *eio_fstatvfs (int fd, int pri, eio_cb cb, void *data) |
|
|
2605 | { |
|
|
2606 | REQ (EIO_FSTATVFS); req->int1 = fd; SEND; |
|
|
2607 | } |
|
|
2608 | |
1355 | eio_req *eio_futime (int fd, double atime, double mtime, int pri, eio_cb cb, void *data) |
2609 | eio_req *eio_futime (int fd, double atime, double mtime, int pri, eio_cb cb, void *data) |
1356 | { |
2610 | { |
1357 | REQ (EIO_FUTIME); req->int1 = fd; req->nv1 = atime; req->nv2 = mtime; SEND; |
2611 | REQ (EIO_FUTIME); req->int1 = fd; req->nv1 = atime; req->nv2 = mtime; SEND; |
1358 | } |
2612 | } |
1359 | |
2613 | |
… | |
… | |
1365 | eio_req *eio_fchmod (int fd, mode_t mode, int pri, eio_cb cb, void *data) |
2619 | eio_req *eio_fchmod (int fd, mode_t mode, int pri, eio_cb cb, void *data) |
1366 | { |
2620 | { |
1367 | REQ (EIO_FCHMOD); req->int1 = fd; req->int2 = (long)mode; SEND; |
2621 | REQ (EIO_FCHMOD); req->int1 = fd; req->int2 = (long)mode; SEND; |
1368 | } |
2622 | } |
1369 | |
2623 | |
1370 | eio_req *eio_fchown (int fd, uid_t uid, gid_t gid, int pri, eio_cb cb, void *data) |
2624 | eio_req *eio_fchown (int fd, eio_uid_t uid, eio_gid_t gid, int pri, eio_cb cb, void *data) |
1371 | { |
2625 | { |
1372 | REQ (EIO_FCHOWN); req->int1 = fd; req->int2 = (long)uid; req->int3 = (long)gid; SEND; |
2626 | REQ (EIO_FCHOWN); req->int1 = fd; req->int2 = (long)uid; req->int3 = (long)gid; SEND; |
1373 | } |
2627 | } |
1374 | |
2628 | |
1375 | eio_req *eio_dup2 (int fd, int fd2, int pri, eio_cb cb, void *data) |
2629 | eio_req *eio_dup2 (int fd, int fd2, int pri, eio_cb cb, void *data) |
… | |
… | |
1395 | eio_req *eio_truncate (const char *path, off_t offset, int pri, eio_cb cb, void *data) |
2649 | eio_req *eio_truncate (const char *path, off_t offset, int pri, eio_cb cb, void *data) |
1396 | { |
2650 | { |
1397 | REQ (EIO_TRUNCATE); PATH; req->offs = offset; SEND; |
2651 | REQ (EIO_TRUNCATE); PATH; req->offs = offset; SEND; |
1398 | } |
2652 | } |
1399 | |
2653 | |
1400 | eio_req *eio_chown (const char *path, uid_t uid, gid_t gid, int pri, eio_cb cb, void *data) |
2654 | eio_req *eio_chown (const char *path, eio_uid_t uid, eio_gid_t gid, int pri, eio_cb cb, void *data) |
1401 | { |
2655 | { |
1402 | REQ (EIO_CHOWN); PATH; req->int2 = (long)uid; req->int3 = (long)gid; SEND; |
2656 | REQ (EIO_CHOWN); PATH; req->int2 = (long)uid; req->int3 = (long)gid; SEND; |
1403 | } |
2657 | } |
1404 | |
2658 | |
1405 | eio_req *eio_chmod (const char *path, mode_t mode, int pri, eio_cb cb, void *data) |
2659 | eio_req *eio_chmod (const char *path, mode_t mode, int pri, eio_cb cb, void *data) |
… | |
… | |
1421 | eio_req *eio_readlink (const char *path, int pri, eio_cb cb, void *data) |
2675 | eio_req *eio_readlink (const char *path, int pri, eio_cb cb, void *data) |
1422 | { |
2676 | { |
1423 | return eio__1path (EIO_READLINK, path, pri, cb, data); |
2677 | return eio__1path (EIO_READLINK, path, pri, cb, data); |
1424 | } |
2678 | } |
1425 | |
2679 | |
|
|
2680 | eio_req *eio_realpath (const char *path, int pri, eio_cb cb, void *data) |
|
|
2681 | { |
|
|
2682 | return eio__1path (EIO_REALPATH, path, pri, cb, data); |
|
|
2683 | } |
|
|
2684 | |
1426 | eio_req *eio_stat (const char *path, int pri, eio_cb cb, void *data) |
2685 | eio_req *eio_stat (const char *path, int pri, eio_cb cb, void *data) |
1427 | { |
2686 | { |
1428 | return eio__1path (EIO_STAT, path, pri, cb, data); |
2687 | return eio__1path (EIO_STAT, path, pri, cb, data); |
1429 | } |
2688 | } |
1430 | |
2689 | |
1431 | eio_req *eio_lstat (const char *path, int pri, eio_cb cb, void *data) |
2690 | eio_req *eio_lstat (const char *path, int pri, eio_cb cb, void *data) |
1432 | { |
2691 | { |
1433 | return eio__1path (EIO_LSTAT, path, pri, cb, data); |
2692 | return eio__1path (EIO_LSTAT, path, pri, cb, data); |
1434 | } |
2693 | } |
1435 | |
2694 | |
|
|
2695 | eio_req *eio_statvfs (const char *path, int pri, eio_cb cb, void *data) |
|
|
2696 | { |
|
|
2697 | return eio__1path (EIO_STATVFS, path, pri, cb, data); |
|
|
2698 | } |
|
|
2699 | |
1436 | eio_req *eio_unlink (const char *path, int pri, eio_cb cb, void *data) |
2700 | eio_req *eio_unlink (const char *path, int pri, eio_cb cb, void *data) |
1437 | { |
2701 | { |
1438 | return eio__1path (EIO_UNLINK, path, pri, cb, data); |
2702 | return eio__1path (EIO_UNLINK, path, pri, cb, data); |
1439 | } |
2703 | } |
1440 | |
2704 | |
1441 | eio_req *eio_rmdir (const char *path, int pri, eio_cb cb, void *data) |
2705 | eio_req *eio_rmdir (const char *path, int pri, eio_cb cb, void *data) |
1442 | { |
2706 | { |
1443 | return eio__1path (EIO_RMDIR, path, pri, cb, data); |
2707 | return eio__1path (EIO_RMDIR, path, pri, cb, data); |
1444 | } |
2708 | } |
1445 | |
2709 | |
1446 | eio_req *eio_readdir (const char *path, int pri, eio_cb cb, void *data) |
2710 | eio_req *eio_readdir (const char *path, int flags, int pri, eio_cb cb, void *data) |
1447 | { |
2711 | { |
1448 | return eio__1path (EIO_READDIR, path, pri, cb, data); |
2712 | REQ (EIO_READDIR); PATH; req->int1 = flags; SEND; |
1449 | } |
2713 | } |
1450 | |
2714 | |
1451 | eio_req *eio_mknod (const char *path, mode_t mode, dev_t dev, int pri, eio_cb cb, void *data) |
2715 | eio_req *eio_mknod (const char *path, mode_t mode, dev_t dev, int pri, eio_cb cb, void *data) |
1452 | { |
2716 | { |
1453 | REQ (EIO_MKNOD); PATH; req->int2 = (long)mode; req->int3 = (long)dev; SEND; |
2717 | REQ (EIO_MKNOD); PATH; req->int2 = (long)mode; req->offs = (off_t)dev; SEND; |
1454 | } |
2718 | } |
1455 | |
2719 | |
1456 | static eio_req * |
2720 | static eio_req * |
1457 | eio__2path (int type, const char *path, const char *new_path, int pri, eio_cb cb, void *data) |
2721 | eio__2path (int type, const char *path, const char *new_path, int pri, eio_cb cb, void *data) |
1458 | { |
2722 | { |
… | |
… | |
1482 | eio_req *eio_rename (const char *path, const char *new_path, int pri, eio_cb cb, void *data) |
2746 | eio_req *eio_rename (const char *path, const char *new_path, int pri, eio_cb cb, void *data) |
1483 | { |
2747 | { |
1484 | return eio__2path (EIO_RENAME, path, new_path, pri, cb, data); |
2748 | return eio__2path (EIO_RENAME, path, new_path, pri, cb, data); |
1485 | } |
2749 | } |
1486 | |
2750 | |
1487 | eio_req *eio_custom (eio_cb execute, int pri, eio_cb cb, void *data) |
2751 | eio_req *eio_custom (void (*execute)(eio_req *), int pri, eio_cb cb, void *data) |
1488 | { |
2752 | { |
1489 | REQ (EIO_CUSTOM); req->feed = (void (*)(eio_req *))execute; SEND; |
2753 | REQ (EIO_CUSTOM); req->feed = execute; SEND; |
1490 | } |
2754 | } |
1491 | |
2755 | |
1492 | #endif |
2756 | #endif |
1493 | |
2757 | |
1494 | eio_req *eio_grp (eio_cb cb, void *data) |
2758 | eio_req *eio_grp (eio_cb cb, void *data) |
… | |
… | |
1503 | #undef SEND |
2767 | #undef SEND |
1504 | |
2768 | |
1505 | /*****************************************************************************/ |
2769 | /*****************************************************************************/ |
1506 | /* grp functions */ |
2770 | /* grp functions */ |
1507 | |
2771 | |
|
|
2772 | void |
1508 | void eio_grp_feed (eio_req *grp, void (*feed)(eio_req *req), int limit) |
2773 | eio_grp_feed (eio_req *grp, void (*feed)(eio_req *req), int limit) |
1509 | { |
2774 | { |
1510 | grp->int2 = limit; |
2775 | grp->int2 = limit; |
1511 | grp->feed = feed; |
2776 | grp->feed = feed; |
1512 | |
2777 | |
1513 | grp_try_feed (grp); |
2778 | grp_try_feed (grp); |
1514 | } |
2779 | } |
1515 | |
2780 | |
|
|
2781 | void |
1516 | void eio_grp_limit (eio_req *grp, int limit) |
2782 | eio_grp_limit (eio_req *grp, int limit) |
1517 | { |
2783 | { |
1518 | grp->int2 = limit; |
2784 | grp->int2 = limit; |
1519 | |
2785 | |
1520 | grp_try_feed (grp); |
2786 | grp_try_feed (grp); |
1521 | } |
2787 | } |
1522 | |
2788 | |
|
|
2789 | void |
1523 | void eio_grp_add (eio_req *grp, eio_req *req) |
2790 | eio_grp_add (eio_req *grp, eio_req *req) |
1524 | { |
2791 | { |
1525 | assert (("cannot add requests to IO::AIO::GRP after the group finished", grp->int1 != 2)); |
2792 | assert (("cannot add requests to IO::AIO::GRP after the group finished", grp->int1 != 2)); |
1526 | |
2793 | |
1527 | grp->flags |= EIO_FLAG_GROUPADD; |
2794 | grp->flags |= EIO_FLAG_GROUPADD; |
1528 | |
2795 | |
… | |
… | |
1539 | } |
2806 | } |
1540 | |
2807 | |
1541 | /*****************************************************************************/ |
2808 | /*****************************************************************************/ |
1542 | /* misc garbage */ |
2809 | /* misc garbage */ |
1543 | |
2810 | |
|
|
2811 | eio_ssize_t |
1544 | ssize_t eio_sendfile_sync (int ofd, int ifd, off_t offset, size_t count) |
2812 | eio_sendfile_sync (int ofd, int ifd, off_t offset, size_t count) |
1545 | { |
2813 | { |
1546 | etp_worker wrk; |
|
|
1547 | |
|
|
1548 | wrk.dbuf = 0; |
|
|
1549 | |
|
|
1550 | eio__sendfile (ofd, ifd, offset, count, &wrk); |
2814 | return eio__sendfile (ofd, ifd, offset, count); |
1551 | |
|
|
1552 | if (wrk.dbuf) |
|
|
1553 | free (wrk.dbuf); |
|
|
1554 | } |
2815 | } |
1555 | |
2816 | |