1 | /* |
1 | /* |
2 | * libeio implementation |
2 | * libeio implementation |
3 | * |
3 | * |
4 | * Copyright (c) 2007,2008,2009,2010,2011 Marc Alexander Lehmann <libeio@schmorp.de> |
4 | * Copyright (c) 2007,2008,2009,2010,2011,2012,2013,2016,2017,2018 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, |
… | |
… | |
42 | #endif |
42 | #endif |
43 | |
43 | |
44 | #include "eio.h" |
44 | #include "eio.h" |
45 | #include "ecb.h" |
45 | #include "ecb.h" |
46 | |
46 | |
47 | #ifdef EIO_STACKSIZE |
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48 | # define XTHREAD_STACKSIZE EIO_STACKSIZE |
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49 | #endif |
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50 | #include "xthread.h" |
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51 | |
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52 | #include <errno.h> |
47 | #include <errno.h> |
53 | #include <stddef.h> |
48 | #include <stddef.h> |
54 | #include <stdlib.h> |
49 | #include <stdlib.h> |
55 | #include <string.h> |
50 | #include <string.h> |
56 | #include <errno.h> |
51 | #include <errno.h> |
… | |
… | |
67 | #endif |
62 | #endif |
68 | |
63 | |
69 | #ifndef ECANCELED |
64 | #ifndef ECANCELED |
70 | # define ECANCELED EDOM |
65 | # define ECANCELED EDOM |
71 | #endif |
66 | #endif |
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67 | #ifndef ELOOP |
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68 | # define ELOOP EDOM |
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69 | #endif |
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70 | |
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71 | #if !defined(ENOTSOCK) && defined(WSAENOTSOCK) |
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72 | # define ENOTSOCK WSAENOTSOCK |
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73 | #endif |
72 | |
74 | |
73 | static void eio_destroy (eio_req *req); |
75 | static void eio_destroy (eio_req *req); |
74 | |
76 | |
75 | #ifndef EIO_FINISH |
77 | #ifndef EIO_FINISH |
76 | # define EIO_FINISH(req) ((req)->finish) && !EIO_CANCELLED (req) ? (req)->finish (req) : 0 |
78 | # define EIO_FINISH(req) ((req)->finish) && !EIO_CANCELLED (req) ? (req)->finish (req) : 0 |
… | |
… | |
95 | |
97 | |
96 | #define EIO_ENOSYS() EIO_ERRNO (ENOSYS, -1) |
98 | #define EIO_ENOSYS() EIO_ERRNO (ENOSYS, -1) |
97 | |
99 | |
98 | #ifdef _WIN32 |
100 | #ifdef _WIN32 |
99 | |
101 | |
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|
102 | #undef PAGESIZE |
100 | #define PAGESIZE 4096 /* GetSystemInfo? */ |
103 | #define PAGESIZE 4096 /* GetSystemInfo? */ |
101 | |
104 | |
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|
105 | /* TODO: look at how perl does stat (non-sloppy), unlink (ro-files), utime, link */ |
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|
106 | |
102 | #ifdef EIO_STRUCT_STATI64 |
107 | #ifdef EIO_STRUCT_STATI64 |
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|
108 | /* look at perl's non-sloppy stat */ |
103 | #define stat(path,buf) _stati64 (path,buf) |
109 | #define stat(path,buf) _stati64 (path,buf) |
104 | #define fstat(fd,buf) _fstati64 (path,buf) |
110 | #define fstat(fd,buf) _fstati64 (fd,buf) |
105 | #endif |
111 | #endif |
106 | #define lstat(path,buf) stat (path,buf) |
112 | #define lstat(path,buf) stat (path,buf) |
107 | #define fsync(fd) (FlushFileBuffers (EIO_FD_TO_WIN32_HANDLE (fd)) ? 0 : EIO_ERRNO (EBADF, -1)) |
113 | #define fsync(fd) (FlushFileBuffers ((HANDLE)EIO_FD_TO_WIN32_HANDLE (fd)) ? 0 : EIO_ERRNO (EBADF, -1)) |
108 | #define mkdir(path,mode) _mkdir (path) |
114 | #define mkdir(path,mode) _mkdir (path) |
109 | #define link(old,neu) (CreateHardLink (neu, old, 0) ? 0 : EIO_ERRNO (ENOENT, -1)) |
115 | #define link(old,neu) (CreateHardLink (neu, old, 0) ? 0 : EIO_ERRNO (ENOENT, -1)) |
110 | |
116 | |
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117 | #define chmod(path,mode) _chmod (path, mode) |
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118 | #define dup(fd) _dup (fd) |
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119 | #define dup2(fd1,fd2) _dup2 (fd1, fd2) |
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120 | #define pipe(fds) _pipe (fds, 4096, O_BINARY) |
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121 | |
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122 | #define fcntl(fd,cmd,arg) EIO_ENOSYS () |
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123 | #define ioctl(fd,cmd,arg) EIO_ENOSYS () |
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124 | #define fchmod(fd,mode) EIO_ENOSYS () |
111 | #define chown(path,uid,gid) EIO_ENOSYS () |
125 | #define chown(path,uid,gid) EIO_ENOSYS () |
112 | #define fchown(fd,uid,gid) EIO_ENOSYS () |
126 | #define fchown(fd,uid,gid) EIO_ENOSYS () |
113 | #define truncate(path,offs) EIO_ENOSYS () /* far-miss: SetEndOfFile */ |
127 | #define truncate(path,offs) EIO_ENOSYS () /* far-miss: SetEndOfFile */ |
114 | #define ftruncate(fd,offs) EIO_ENOSYS () /* near-miss: SetEndOfFile */ |
128 | #define ftruncate(fd,offs) EIO_ENOSYS () /* near-miss: SetEndOfFile */ |
115 | #define mknod(path,mode,dev) EIO_ENOSYS () |
129 | #define mknod(path,mode,dev) EIO_ENOSYS () |
116 | #define sync() EIO_ENOSYS () |
130 | #define sync() EIO_ENOSYS () |
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131 | #define readlink(path,buf,s) EIO_ENOSYS () |
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132 | #define statvfs(path,buf) EIO_ENOSYS () |
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133 | #define fstatvfs(fd,buf) EIO_ENOSYS () |
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134 | |
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135 | #define pread(fd,buf,count,offset) eio__pread (fd, buf, count, offset) |
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136 | #define pwrite(fd,buf,count,offset) eio__pwrite (fd, buf, count, offset) |
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137 | |
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138 | #if __GNUC__ |
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139 | typedef long long eio_off_t; /* signed for compatibility to msvc */ |
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140 | #else |
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141 | typedef __int64 eio_off_t; /* unsigned not supported by msvc */ |
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142 | #endif |
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143 | |
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144 | static eio_ssize_t |
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145 | eio__pread (int fd, void *buf, eio_ssize_t count, eio_off_t offset) |
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146 | { |
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147 | OVERLAPPED o = { 0 }; |
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148 | DWORD got; |
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149 | |
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150 | o.Offset = offset; |
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151 | o.OffsetHigh = offset >> 32; |
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152 | |
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153 | return ReadFile ((HANDLE)EIO_FD_TO_WIN32_HANDLE (fd), buf, count, &got, &o) |
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154 | ? got : -1; |
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155 | } |
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156 | |
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157 | static eio_ssize_t |
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158 | eio__pwrite (int fd, void *buf, eio_ssize_t count, eio_off_t offset) |
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159 | { |
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160 | OVERLAPPED o = { 0 }; |
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161 | DWORD got; |
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162 | |
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163 | o.Offset = offset; |
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164 | o.OffsetHigh = offset >> 32; |
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165 | |
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166 | return WriteFile ((HANDLE)EIO_FD_TO_WIN32_HANDLE (fd), buf, count, &got, &o) |
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167 | ? got : -1; |
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168 | } |
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169 | |
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170 | /* rename() uses MoveFile, which fails to overwrite */ |
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171 | #define rename(old,neu) eio__rename (old, neu) |
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172 | |
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173 | static int |
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174 | eio__rename (const char *old, const char *neu) |
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175 | { |
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176 | if (MoveFileEx (old, neu, MOVEFILE_REPLACE_EXISTING)) |
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177 | return 0; |
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178 | |
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179 | /* should steal _dosmaperr */ |
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180 | switch (GetLastError ()) |
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181 | { |
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182 | case ERROR_FILE_NOT_FOUND: |
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183 | case ERROR_PATH_NOT_FOUND: |
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184 | case ERROR_INVALID_DRIVE: |
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185 | case ERROR_NO_MORE_FILES: |
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186 | case ERROR_BAD_NETPATH: |
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187 | case ERROR_BAD_NET_NAME: |
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188 | case ERROR_BAD_PATHNAME: |
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189 | case ERROR_FILENAME_EXCED_RANGE: |
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190 | errno = ENOENT; |
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191 | break; |
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192 | |
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193 | default: |
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194 | errno = EACCES; |
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195 | break; |
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196 | } |
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197 | |
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198 | return -1; |
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199 | } |
117 | |
200 | |
118 | /* we could even stat and see if it exists */ |
201 | /* we could even stat and see if it exists */ |
119 | static int |
202 | static int |
120 | symlink (const char *old, const char *neu) |
203 | symlink (const char *old, const char *neu) |
121 | { |
204 | { |
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205 | #if WINVER >= 0x0600 |
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206 | int flags; |
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207 | |
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208 | /* This tries out all combinations of SYMBOLIC_LINK_FLAG_DIRECTORY |
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209 | * and SYMBOLIC_LINK_FLAG_ALLOW_UNPRIVILEGED_CREATE, |
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210 | * with directory first. |
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211 | */ |
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212 | for (flags = 3; flags >= 0; --flags) |
122 | if (CreateSymbolicLink (neu, old, 1)) |
213 | if (CreateSymbolicLink (neu, old, flags)) |
123 | return 0; |
214 | return 0; |
124 | |
215 | #endif |
125 | if (CreateSymbolicLink (neu, old, 0)) |
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126 | return 0; |
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127 | |
216 | |
128 | return EIO_ERRNO (ENOENT, -1); |
217 | return EIO_ERRNO (ENOENT, -1); |
129 | } |
218 | } |
130 | |
219 | |
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220 | /* POSIX API only, causing trouble for win32 apps */ |
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221 | #define CreateHardLink(neu,old,flags) 0 /* not really creating hardlink, still using relative paths? */ |
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222 | #define CreateSymbolicLink(neu,old,flags) 0 /* vista+ only */ |
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223 | |
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224 | struct statvfs |
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225 | { |
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226 | int dummy; |
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227 | }; |
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228 | |
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229 | #define DT_DIR EIO_DT_DIR |
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230 | #define DT_REG EIO_DT_REG |
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231 | #define D_NAME(entp) entp.cFileName |
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232 | #define D_TYPE(entp) (entp.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY ? DT_DIR : DT_REG) |
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233 | |
131 | #else |
234 | #else |
132 | |
235 | |
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236 | #include <sys/ioctl.h> |
133 | #include <sys/time.h> |
237 | #include <sys/time.h> |
134 | #include <sys/select.h> |
238 | #include <sys/select.h> |
135 | #include <sys/statvfs.h> |
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136 | #include <unistd.h> |
239 | #include <unistd.h> |
137 | #include <utime.h> |
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138 | #include <signal.h> |
240 | #include <signal.h> |
139 | #include <dirent.h> |
241 | #include <dirent.h> |
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242 | |
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243 | #ifdef ANDROID |
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244 | #include <sys/vfs.h> |
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245 | #define statvfs statfs |
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246 | #define fstatvfs fstatfs |
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247 | #include <asm/page.h> /* supposedly limits.h does #define PAGESIZE PAGESIZE */ |
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248 | #else |
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249 | #include <sys/statvfs.h> |
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250 | #endif |
140 | |
251 | |
141 | #if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES |
252 | #if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES |
142 | #include <sys/mman.h> |
253 | #include <sys/mman.h> |
143 | #endif |
254 | #endif |
144 | |
255 | |
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256 | #define D_NAME(entp) entp->d_name |
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257 | |
145 | /* POSIX_SOURCE is useless on bsd's, and XOPEN_SOURCE is unreliable there, too */ |
258 | /* POSIX_SOURCE is useless on bsd's, and XOPEN_SOURCE is unreliable there, too */ |
146 | #if __FreeBSD__ || defined __NetBSD__ || defined __OpenBSD__ |
259 | #if __FreeBSD__ || __NetBSD__ || __OpenBSD__ |
147 | #define _DIRENT_HAVE_D_TYPE /* sigh */ |
260 | #define _DIRENT_HAVE_D_TYPE /* sigh */ |
148 | #define D_INO(de) (de)->d_fileno |
261 | #define D_INO(de) (de)->d_fileno |
149 | #define D_NAMLEN(de) (de)->d_namlen |
262 | #define D_NAMLEN(de) (de)->d_namlen |
150 | #elif __linux || defined d_ino || _XOPEN_SOURCE >= 600 |
263 | #elif __linux || defined d_ino || _XOPEN_SOURCE >= 600 |
151 | #define D_INO(de) (de)->d_ino |
264 | #define D_INO(de) (de)->d_ino |
… | |
… | |
162 | |
275 | |
163 | #ifndef EIO_STRUCT_DIRENT |
276 | #ifndef EIO_STRUCT_DIRENT |
164 | #define EIO_STRUCT_DIRENT struct dirent |
277 | #define EIO_STRUCT_DIRENT struct dirent |
165 | #endif |
278 | #endif |
166 | |
279 | |
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280 | #endif |
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281 | |
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282 | #if HAVE_UTIMES |
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283 | # include <utime.h> |
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284 | #endif |
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285 | |
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286 | #if HAVE_SYS_SYSCALL_H |
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287 | # include <sys/syscall.h> |
167 | #endif |
288 | #endif |
168 | |
289 | |
169 | #if HAVE_SENDFILE |
290 | #if HAVE_SENDFILE |
170 | # if __linux |
291 | # if __linux |
171 | # include <sys/sendfile.h> |
292 | # include <sys/sendfile.h> |
… | |
… | |
179 | # else |
300 | # else |
180 | # error sendfile support requested but not available |
301 | # error sendfile support requested but not available |
181 | # endif |
302 | # endif |
182 | #endif |
303 | #endif |
183 | |
304 | |
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305 | #if HAVE_RENAMEAT2 |
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306 | # include <sys/syscall.h> |
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307 | # include <linux/fs.h> |
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308 | #endif |
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309 | |
184 | #ifndef D_TYPE |
310 | #ifndef D_TYPE |
185 | # define D_TYPE(de) 0 |
311 | # define D_TYPE(de) 0 |
186 | #endif |
312 | #endif |
187 | #ifndef D_INO |
313 | #ifndef D_INO |
188 | # define D_INO(de) 0 |
314 | # define D_INO(de) 0 |
189 | #endif |
315 | #endif |
190 | #ifndef D_NAMLEN |
316 | #ifndef D_NAMLEN |
191 | # define D_NAMLEN(de) strlen ((de)->d_name) |
317 | # define D_NAMLEN(entp) strlen (D_NAME (entp)) |
192 | #endif |
318 | #endif |
193 | |
319 | |
194 | /* used for struct dirent, AIX doesn't provide it */ |
320 | /* used for struct dirent, AIX doesn't provide it */ |
195 | #ifndef NAME_MAX |
321 | #ifndef NAME_MAX |
196 | # define NAME_MAX 4096 |
322 | # define NAME_MAX 4096 |
197 | #endif |
323 | #endif |
198 | |
324 | |
199 | /* used for readlink etc. */ |
325 | /* used for readlink etc. */ |
200 | #ifndef PATH_MAX |
326 | #ifndef PATH_MAX |
201 | # define PATH_MAX 4096 |
327 | # define PATH_MAX 0 |
202 | #endif |
328 | #endif |
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329 | |
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330 | #ifndef O_CLOEXEC |
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331 | #define O_CLOEXEC 0 |
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332 | #endif |
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333 | |
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334 | #ifndef O_NONBLOCK |
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335 | #define O_NONBLOCK 0 |
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336 | #endif |
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337 | |
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338 | #ifndef O_SEARCH |
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339 | #define O_SEARCH O_RDONLY |
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340 | #endif |
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341 | |
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342 | #ifndef O_DIRECTORY |
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343 | #define O_DIRECTORY 0 |
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344 | #endif |
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345 | |
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346 | #ifndef EIO_PATH_MIN |
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347 | # define EIO_PATH_MIN 8160 |
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348 | #endif |
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349 | |
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350 | #define EIO_PATH_MAX (PATH_MAX <= EIO_PATH_MIN ? EIO_PATH_MIN : PATH_MAX) |
203 | |
351 | |
204 | /* buffer size for various temporary buffers */ |
352 | /* buffer size for various temporary buffers */ |
205 | #define EIO_BUFSIZE 65536 |
353 | #define EIO_BUFSIZE 65536 |
206 | |
354 | |
207 | #define dBUF \ |
355 | #define dBUF \ |
208 | char *eio_buf; \ |
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209 | ETP_WORKER_LOCK (self); \ |
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210 | self->dbuf = eio_buf = malloc (EIO_BUFSIZE); \ |
356 | char *eio_buf = malloc (EIO_BUFSIZE); \ |
211 | ETP_WORKER_UNLOCK (self); \ |
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212 | errno = ENOMEM; \ |
357 | errno = ENOMEM; \ |
213 | if (!eio_buf) \ |
358 | if (!eio_buf) \ |
214 | return -1; |
359 | return -1 |
215 | |
360 | |
216 | #define EIO_TICKS ((1000000 + 1023) >> 10) |
361 | #define FUBd \ |
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362 | free (eio_buf) |
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363 | |
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364 | /*****************************************************************************/ |
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365 | |
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366 | struct etp_tmpbuf; |
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367 | |
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368 | #if _POSIX_VERSION >= 200809L |
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369 | #define HAVE_AT 1 |
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370 | #define WD2FD(wd) ((wd) ? (wd)->fd : AT_FDCWD) |
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371 | #else |
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372 | #define HAVE_AT 0 |
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373 | static const char *wd_expand (struct etp_tmpbuf *tmpbuf, eio_wd wd, const char *path); |
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374 | #endif |
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375 | |
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376 | struct eio_pwd |
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377 | { |
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378 | #if HAVE_AT |
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379 | int fd; |
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380 | #endif |
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381 | int len; |
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382 | char str[1]; /* actually, a 0-terminated canonical path */ |
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383 | }; |
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384 | |
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385 | /*****************************************************************************/ |
217 | |
386 | |
218 | #define ETP_PRI_MIN EIO_PRI_MIN |
387 | #define ETP_PRI_MIN EIO_PRI_MIN |
219 | #define ETP_PRI_MAX EIO_PRI_MAX |
388 | #define ETP_PRI_MAX EIO_PRI_MAX |
220 | |
389 | |
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390 | #define ETP_TYPE_QUIT -1 |
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391 | #define ETP_TYPE_GROUP EIO_GROUP |
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392 | |
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393 | static void eio_nop_callback (void) { } |
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394 | static void (*eio_want_poll_cb)(void) = eio_nop_callback; |
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395 | static void (*eio_done_poll_cb)(void) = eio_nop_callback; |
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396 | |
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397 | #define ETP_WANT_POLL(pool) eio_want_poll_cb () |
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398 | #define ETP_DONE_POLL(pool) eio_done_poll_cb () |
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399 | |
221 | struct etp_worker; |
400 | struct etp_worker; |
222 | |
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223 | #define ETP_REQ eio_req |
401 | #define ETP_REQ eio_req |
224 | #define ETP_DESTROY(req) eio_destroy (req) |
402 | #define ETP_DESTROY(req) eio_destroy (req) |
225 | static int eio_finish (eio_req *req); |
403 | static int eio_finish (eio_req *req); |
226 | #define ETP_FINISH(req) eio_finish (req) |
404 | #define ETP_FINISH(req) eio_finish (req) |
227 | static void eio_execute (struct etp_worker *self, eio_req *req); |
405 | static void eio_execute (struct etp_worker *self, eio_req *req); |
228 | #define ETP_EXECUTE(wrk,req) eio_execute (wrk,req) |
406 | #define ETP_EXECUTE(wrk,req) eio_execute (wrk, req) |
229 | |
407 | |
230 | #define ETP_WORKER_CLEAR(req) \ |
408 | #include "etp.c" |
231 | if (wrk->dbuf) \ |
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232 | { \ |
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233 | free (wrk->dbuf); \ |
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234 | wrk->dbuf = 0; \ |
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235 | } \ |
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236 | \ |
|
|
237 | if (wrk->dirp) \ |
|
|
238 | { \ |
|
|
239 | closedir (wrk->dirp); \ |
|
|
240 | wrk->dirp = 0; \ |
|
|
241 | } |
|
|
242 | |
409 | |
243 | #define ETP_WORKER_COMMON \ |
410 | static struct etp_pool eio_pool; |
244 | void *dbuf; \ |
411 | #define EIO_POOL (&eio_pool) |
245 | DIR *dirp; |
|
|
246 | |
|
|
247 | /*****************************************************************************/ |
|
|
248 | |
|
|
249 | #define ETP_NUM_PRI (ETP_PRI_MAX - ETP_PRI_MIN + 1) |
|
|
250 | |
|
|
251 | /* calculate time difference in ~1/EIO_TICKS of a second */ |
|
|
252 | ecb_inline int |
|
|
253 | tvdiff (struct timeval *tv1, struct timeval *tv2) |
|
|
254 | { |
|
|
255 | return (tv2->tv_sec - tv1->tv_sec ) * EIO_TICKS |
|
|
256 | + ((tv2->tv_usec - tv1->tv_usec) >> 10); |
|
|
257 | } |
|
|
258 | |
|
|
259 | static unsigned int started, idle, wanted = 4; |
|
|
260 | |
|
|
261 | static void (*want_poll_cb) (void); |
|
|
262 | static void (*done_poll_cb) (void); |
|
|
263 | |
|
|
264 | static unsigned int max_poll_time; /* reslock */ |
|
|
265 | static unsigned int max_poll_reqs; /* reslock */ |
|
|
266 | |
|
|
267 | static volatile unsigned int nreqs; /* reqlock */ |
|
|
268 | static volatile unsigned int nready; /* reqlock */ |
|
|
269 | static volatile unsigned int npending; /* reqlock */ |
|
|
270 | static volatile unsigned int max_idle = 4; /* maximum number of threads that can idle indefinitely */ |
|
|
271 | static volatile unsigned int idle_timeout = 10; /* number of seconds after which an idle threads exit */ |
|
|
272 | |
|
|
273 | static xmutex_t wrklock; |
|
|
274 | static xmutex_t reslock; |
|
|
275 | static xmutex_t reqlock; |
|
|
276 | static xcond_t reqwait; |
|
|
277 | |
|
|
278 | #if !HAVE_PREADWRITE |
|
|
279 | /* |
|
|
280 | * make our pread/pwrite emulation safe against themselves, but not against |
|
|
281 | * normal read/write by using a mutex. slows down execution a lot, |
|
|
282 | * but that's your problem, not mine. |
|
|
283 | */ |
|
|
284 | static xmutex_t preadwritelock = X_MUTEX_INIT; |
|
|
285 | #endif |
|
|
286 | |
|
|
287 | typedef struct etp_worker |
|
|
288 | { |
|
|
289 | /* locked by wrklock */ |
|
|
290 | struct etp_worker *prev, *next; |
|
|
291 | |
|
|
292 | xthread_t tid; |
|
|
293 | |
|
|
294 | /* locked by reslock, reqlock or wrklock */ |
|
|
295 | ETP_REQ *req; /* currently processed request */ |
|
|
296 | |
|
|
297 | ETP_WORKER_COMMON |
|
|
298 | } etp_worker; |
|
|
299 | |
|
|
300 | static etp_worker wrk_first = { &wrk_first, &wrk_first, 0 }; /* NOT etp */ |
|
|
301 | |
|
|
302 | #define ETP_WORKER_LOCK(wrk) X_LOCK (wrklock) |
|
|
303 | #define ETP_WORKER_UNLOCK(wrk) X_UNLOCK (wrklock) |
|
|
304 | |
|
|
305 | /* worker threads management */ |
|
|
306 | |
|
|
307 | static void ecb_cold |
|
|
308 | etp_worker_clear (etp_worker *wrk) |
|
|
309 | { |
|
|
310 | ETP_WORKER_CLEAR (wrk); |
|
|
311 | } |
|
|
312 | |
|
|
313 | static void ecb_cold |
|
|
314 | etp_worker_free (etp_worker *wrk) |
|
|
315 | { |
|
|
316 | wrk->next->prev = wrk->prev; |
|
|
317 | wrk->prev->next = wrk->next; |
|
|
318 | |
|
|
319 | free (wrk); |
|
|
320 | } |
|
|
321 | |
|
|
322 | static unsigned int |
|
|
323 | etp_nreqs (void) |
|
|
324 | { |
|
|
325 | int retval; |
|
|
326 | if (WORDACCESS_UNSAFE) X_LOCK (reqlock); |
|
|
327 | retval = nreqs; |
|
|
328 | if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock); |
|
|
329 | return retval; |
|
|
330 | } |
|
|
331 | |
|
|
332 | static unsigned int |
|
|
333 | etp_nready (void) |
|
|
334 | { |
|
|
335 | unsigned int retval; |
|
|
336 | |
|
|
337 | if (WORDACCESS_UNSAFE) X_LOCK (reqlock); |
|
|
338 | retval = nready; |
|
|
339 | if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock); |
|
|
340 | |
|
|
341 | return retval; |
|
|
342 | } |
|
|
343 | |
|
|
344 | static unsigned int |
|
|
345 | etp_npending (void) |
|
|
346 | { |
|
|
347 | unsigned int retval; |
|
|
348 | |
|
|
349 | if (WORDACCESS_UNSAFE) X_LOCK (reqlock); |
|
|
350 | retval = npending; |
|
|
351 | if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock); |
|
|
352 | |
|
|
353 | return retval; |
|
|
354 | } |
|
|
355 | |
|
|
356 | static unsigned int |
|
|
357 | etp_nthreads (void) |
|
|
358 | { |
|
|
359 | unsigned int retval; |
|
|
360 | |
|
|
361 | if (WORDACCESS_UNSAFE) X_LOCK (reqlock); |
|
|
362 | retval = started; |
|
|
363 | if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock); |
|
|
364 | |
|
|
365 | return retval; |
|
|
366 | } |
|
|
367 | |
|
|
368 | /* |
|
|
369 | * a somewhat faster data structure might be nice, but |
|
|
370 | * with 8 priorities this actually needs <20 insns |
|
|
371 | * per shift, the most expensive operation. |
|
|
372 | */ |
|
|
373 | typedef struct { |
|
|
374 | ETP_REQ *qs[ETP_NUM_PRI], *qe[ETP_NUM_PRI]; /* qstart, qend */ |
|
|
375 | int size; |
|
|
376 | } etp_reqq; |
|
|
377 | |
|
|
378 | static etp_reqq req_queue; |
|
|
379 | static etp_reqq res_queue; |
|
|
380 | |
|
|
381 | static int ecb_noinline |
|
|
382 | reqq_push (etp_reqq *q, ETP_REQ *req) |
|
|
383 | { |
|
|
384 | int pri = req->pri; |
|
|
385 | req->next = 0; |
|
|
386 | |
|
|
387 | if (q->qe[pri]) |
|
|
388 | { |
|
|
389 | q->qe[pri]->next = req; |
|
|
390 | q->qe[pri] = req; |
|
|
391 | } |
|
|
392 | else |
|
|
393 | q->qe[pri] = q->qs[pri] = req; |
|
|
394 | |
|
|
395 | return q->size++; |
|
|
396 | } |
|
|
397 | |
|
|
398 | static ETP_REQ * ecb_noinline |
|
|
399 | reqq_shift (etp_reqq *q) |
|
|
400 | { |
|
|
401 | int pri; |
|
|
402 | |
|
|
403 | if (!q->size) |
|
|
404 | return 0; |
|
|
405 | |
|
|
406 | --q->size; |
|
|
407 | |
|
|
408 | for (pri = ETP_NUM_PRI; pri--; ) |
|
|
409 | { |
|
|
410 | eio_req *req = q->qs[pri]; |
|
|
411 | |
|
|
412 | if (req) |
|
|
413 | { |
|
|
414 | if (!(q->qs[pri] = (eio_req *)req->next)) |
|
|
415 | q->qe[pri] = 0; |
|
|
416 | |
|
|
417 | return req; |
|
|
418 | } |
|
|
419 | } |
|
|
420 | |
|
|
421 | abort (); |
|
|
422 | } |
|
|
423 | |
|
|
424 | static void ecb_cold |
|
|
425 | etp_thread_init (void) |
|
|
426 | { |
|
|
427 | #if !HAVE_PREADWRITE |
|
|
428 | X_MUTEX_CREATE (preadwritelock); |
|
|
429 | #endif |
|
|
430 | X_MUTEX_CREATE (wrklock); |
|
|
431 | X_MUTEX_CREATE (reslock); |
|
|
432 | X_MUTEX_CREATE (reqlock); |
|
|
433 | X_COND_CREATE (reqwait); |
|
|
434 | } |
|
|
435 | |
|
|
436 | static void ecb_cold |
|
|
437 | etp_atfork_prepare (void) |
|
|
438 | { |
|
|
439 | } |
|
|
440 | |
|
|
441 | static void ecb_cold |
|
|
442 | etp_atfork_parent (void) |
|
|
443 | { |
|
|
444 | } |
|
|
445 | |
|
|
446 | static void ecb_cold |
|
|
447 | etp_atfork_child (void) |
|
|
448 | { |
|
|
449 | ETP_REQ *prv; |
|
|
450 | |
|
|
451 | while ((prv = reqq_shift (&req_queue))) |
|
|
452 | ETP_DESTROY (prv); |
|
|
453 | |
|
|
454 | while ((prv = reqq_shift (&res_queue))) |
|
|
455 | ETP_DESTROY (prv); |
|
|
456 | |
|
|
457 | while (wrk_first.next != &wrk_first) |
|
|
458 | { |
|
|
459 | etp_worker *wrk = wrk_first.next; |
|
|
460 | |
|
|
461 | if (wrk->req) |
|
|
462 | ETP_DESTROY (wrk->req); |
|
|
463 | |
|
|
464 | etp_worker_clear (wrk); |
|
|
465 | etp_worker_free (wrk); |
|
|
466 | } |
|
|
467 | |
|
|
468 | started = 0; |
|
|
469 | idle = 0; |
|
|
470 | nreqs = 0; |
|
|
471 | nready = 0; |
|
|
472 | npending = 0; |
|
|
473 | |
|
|
474 | etp_thread_init (); |
|
|
475 | } |
|
|
476 | |
|
|
477 | static void ecb_cold |
|
|
478 | etp_once_init (void) |
|
|
479 | { |
|
|
480 | etp_thread_init (); |
|
|
481 | X_THREAD_ATFORK (etp_atfork_prepare, etp_atfork_parent, etp_atfork_child); |
|
|
482 | } |
|
|
483 | |
|
|
484 | static int ecb_cold |
|
|
485 | etp_init (void (*want_poll)(void), void (*done_poll)(void)) |
|
|
486 | { |
|
|
487 | static pthread_once_t doinit = PTHREAD_ONCE_INIT; |
|
|
488 | |
|
|
489 | pthread_once (&doinit, etp_once_init); |
|
|
490 | |
|
|
491 | want_poll_cb = want_poll; |
|
|
492 | done_poll_cb = done_poll; |
|
|
493 | |
|
|
494 | return 0; |
|
|
495 | } |
|
|
496 | |
|
|
497 | X_THREAD_PROC (etp_proc); |
|
|
498 | |
|
|
499 | static void ecb_cold |
|
|
500 | etp_start_thread (void) |
|
|
501 | { |
|
|
502 | etp_worker *wrk = calloc (1, sizeof (etp_worker)); |
|
|
503 | |
|
|
504 | /*TODO*/ |
|
|
505 | assert (("unable to allocate worker thread data", wrk)); |
|
|
506 | |
|
|
507 | X_LOCK (wrklock); |
|
|
508 | |
|
|
509 | if (thread_create (&wrk->tid, etp_proc, (void *)wrk)) |
|
|
510 | { |
|
|
511 | wrk->prev = &wrk_first; |
|
|
512 | wrk->next = wrk_first.next; |
|
|
513 | wrk_first.next->prev = wrk; |
|
|
514 | wrk_first.next = wrk; |
|
|
515 | ++started; |
|
|
516 | } |
|
|
517 | else |
|
|
518 | free (wrk); |
|
|
519 | |
|
|
520 | X_UNLOCK (wrklock); |
|
|
521 | } |
|
|
522 | |
|
|
523 | static void |
|
|
524 | etp_maybe_start_thread (void) |
|
|
525 | { |
|
|
526 | if (ecb_expect_true (etp_nthreads () >= wanted)) |
|
|
527 | return; |
|
|
528 | |
|
|
529 | /* todo: maybe use idle here, but might be less exact */ |
|
|
530 | if (ecb_expect_true (0 <= (int)etp_nthreads () + (int)etp_npending () - (int)etp_nreqs ())) |
|
|
531 | return; |
|
|
532 | |
|
|
533 | etp_start_thread (); |
|
|
534 | } |
|
|
535 | |
|
|
536 | static void ecb_cold |
|
|
537 | etp_end_thread (void) |
|
|
538 | { |
|
|
539 | eio_req *req = calloc (1, sizeof (eio_req)); |
|
|
540 | |
|
|
541 | req->type = -1; |
|
|
542 | req->pri = ETP_PRI_MAX - ETP_PRI_MIN; |
|
|
543 | |
|
|
544 | X_LOCK (reqlock); |
|
|
545 | reqq_push (&req_queue, req); |
|
|
546 | X_COND_SIGNAL (reqwait); |
|
|
547 | X_UNLOCK (reqlock); |
|
|
548 | |
|
|
549 | X_LOCK (wrklock); |
|
|
550 | --started; |
|
|
551 | X_UNLOCK (wrklock); |
|
|
552 | } |
|
|
553 | |
|
|
554 | static int |
|
|
555 | etp_poll (void) |
|
|
556 | { |
|
|
557 | unsigned int maxreqs; |
|
|
558 | unsigned int maxtime; |
|
|
559 | struct timeval tv_start, tv_now; |
|
|
560 | |
|
|
561 | X_LOCK (reslock); |
|
|
562 | maxreqs = max_poll_reqs; |
|
|
563 | maxtime = max_poll_time; |
|
|
564 | X_UNLOCK (reslock); |
|
|
565 | |
|
|
566 | if (maxtime) |
|
|
567 | gettimeofday (&tv_start, 0); |
|
|
568 | |
|
|
569 | for (;;) |
|
|
570 | { |
|
|
571 | ETP_REQ *req; |
|
|
572 | |
|
|
573 | etp_maybe_start_thread (); |
|
|
574 | |
|
|
575 | X_LOCK (reslock); |
|
|
576 | req = reqq_shift (&res_queue); |
|
|
577 | |
|
|
578 | if (req) |
|
|
579 | { |
|
|
580 | --npending; |
|
|
581 | |
|
|
582 | if (!res_queue.size && done_poll_cb) |
|
|
583 | done_poll_cb (); |
|
|
584 | } |
|
|
585 | |
|
|
586 | X_UNLOCK (reslock); |
|
|
587 | |
|
|
588 | if (!req) |
|
|
589 | return 0; |
|
|
590 | |
|
|
591 | X_LOCK (reqlock); |
|
|
592 | --nreqs; |
|
|
593 | X_UNLOCK (reqlock); |
|
|
594 | |
|
|
595 | if (ecb_expect_false (req->type == EIO_GROUP && req->size)) |
|
|
596 | { |
|
|
597 | req->int1 = 1; /* mark request as delayed */ |
|
|
598 | continue; |
|
|
599 | } |
|
|
600 | else |
|
|
601 | { |
|
|
602 | int res = ETP_FINISH (req); |
|
|
603 | if (ecb_expect_false (res)) |
|
|
604 | return res; |
|
|
605 | } |
|
|
606 | |
|
|
607 | if (ecb_expect_false (maxreqs && !--maxreqs)) |
|
|
608 | break; |
|
|
609 | |
|
|
610 | if (maxtime) |
|
|
611 | { |
|
|
612 | gettimeofday (&tv_now, 0); |
|
|
613 | |
|
|
614 | if (tvdiff (&tv_start, &tv_now) >= maxtime) |
|
|
615 | break; |
|
|
616 | } |
|
|
617 | } |
|
|
618 | |
|
|
619 | errno = EAGAIN; |
|
|
620 | return -1; |
|
|
621 | } |
|
|
622 | |
|
|
623 | static void |
|
|
624 | etp_cancel (ETP_REQ *req) |
|
|
625 | { |
|
|
626 | req->cancelled = 1; |
|
|
627 | |
|
|
628 | eio_grp_cancel (req); |
|
|
629 | } |
|
|
630 | |
|
|
631 | static void |
|
|
632 | etp_submit (ETP_REQ *req) |
|
|
633 | { |
|
|
634 | req->pri -= ETP_PRI_MIN; |
|
|
635 | |
|
|
636 | if (ecb_expect_false (req->pri < ETP_PRI_MIN - ETP_PRI_MIN)) req->pri = ETP_PRI_MIN - ETP_PRI_MIN; |
|
|
637 | if (ecb_expect_false (req->pri > ETP_PRI_MAX - ETP_PRI_MIN)) req->pri = ETP_PRI_MAX - ETP_PRI_MIN; |
|
|
638 | |
|
|
639 | if (ecb_expect_false (req->type == EIO_GROUP)) |
|
|
640 | { |
|
|
641 | /* I hope this is worth it :/ */ |
|
|
642 | X_LOCK (reqlock); |
|
|
643 | ++nreqs; |
|
|
644 | X_UNLOCK (reqlock); |
|
|
645 | |
|
|
646 | X_LOCK (reslock); |
|
|
647 | |
|
|
648 | ++npending; |
|
|
649 | |
|
|
650 | if (!reqq_push (&res_queue, req) && want_poll_cb) |
|
|
651 | want_poll_cb (); |
|
|
652 | |
|
|
653 | X_UNLOCK (reslock); |
|
|
654 | } |
|
|
655 | else |
|
|
656 | { |
|
|
657 | X_LOCK (reqlock); |
|
|
658 | ++nreqs; |
|
|
659 | ++nready; |
|
|
660 | reqq_push (&req_queue, req); |
|
|
661 | X_COND_SIGNAL (reqwait); |
|
|
662 | X_UNLOCK (reqlock); |
|
|
663 | |
|
|
664 | etp_maybe_start_thread (); |
|
|
665 | } |
|
|
666 | } |
|
|
667 | |
|
|
668 | static void ecb_cold |
|
|
669 | etp_set_max_poll_time (double nseconds) |
|
|
670 | { |
|
|
671 | if (WORDACCESS_UNSAFE) X_LOCK (reslock); |
|
|
672 | max_poll_time = nseconds * EIO_TICKS; |
|
|
673 | if (WORDACCESS_UNSAFE) X_UNLOCK (reslock); |
|
|
674 | } |
|
|
675 | |
|
|
676 | static void ecb_cold |
|
|
677 | etp_set_max_poll_reqs (unsigned int maxreqs) |
|
|
678 | { |
|
|
679 | if (WORDACCESS_UNSAFE) X_LOCK (reslock); |
|
|
680 | max_poll_reqs = maxreqs; |
|
|
681 | if (WORDACCESS_UNSAFE) X_UNLOCK (reslock); |
|
|
682 | } |
|
|
683 | |
|
|
684 | static void ecb_cold |
|
|
685 | etp_set_max_idle (unsigned int nthreads) |
|
|
686 | { |
|
|
687 | if (WORDACCESS_UNSAFE) X_LOCK (reqlock); |
|
|
688 | max_idle = nthreads; |
|
|
689 | if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock); |
|
|
690 | } |
|
|
691 | |
|
|
692 | static void ecb_cold |
|
|
693 | etp_set_idle_timeout (unsigned int seconds) |
|
|
694 | { |
|
|
695 | if (WORDACCESS_UNSAFE) X_LOCK (reqlock); |
|
|
696 | idle_timeout = seconds; |
|
|
697 | if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock); |
|
|
698 | } |
|
|
699 | |
|
|
700 | static void ecb_cold |
|
|
701 | etp_set_min_parallel (unsigned int nthreads) |
|
|
702 | { |
|
|
703 | if (wanted < nthreads) |
|
|
704 | wanted = nthreads; |
|
|
705 | } |
|
|
706 | |
|
|
707 | static void ecb_cold |
|
|
708 | etp_set_max_parallel (unsigned int nthreads) |
|
|
709 | { |
|
|
710 | if (wanted > nthreads) |
|
|
711 | wanted = nthreads; |
|
|
712 | |
|
|
713 | while (started > wanted) |
|
|
714 | etp_end_thread (); |
|
|
715 | } |
|
|
716 | |
412 | |
717 | /*****************************************************************************/ |
413 | /*****************************************************************************/ |
718 | |
414 | |
719 | static void |
415 | static void |
720 | grp_try_feed (eio_req *grp) |
416 | grp_try_feed (eio_req *grp) |
721 | { |
417 | { |
722 | while (grp->size < grp->int2 && !EIO_CANCELLED (grp)) |
418 | while (grp->size < grp->int2 && !EIO_CANCELLED (grp)) |
723 | { |
419 | { |
724 | grp->flags &= ~EIO_FLAG_GROUPADD; |
420 | grp->flags &= ~ETP_FLAG_GROUPADD; |
725 | |
421 | |
726 | EIO_FEED (grp); |
422 | EIO_FEED (grp); |
727 | |
423 | |
728 | /* stop if no progress has been made */ |
424 | /* stop if no progress has been made */ |
729 | if (!(grp->flags & EIO_FLAG_GROUPADD)) |
425 | if (!(grp->flags & ETP_FLAG_GROUPADD)) |
730 | { |
426 | { |
731 | grp->feed = 0; |
427 | grp->feed = 0; |
732 | break; |
428 | break; |
733 | } |
429 | } |
734 | } |
430 | } |
… | |
… | |
741 | |
437 | |
742 | /* call feeder, if applicable */ |
438 | /* call feeder, if applicable */ |
743 | grp_try_feed (grp); |
439 | grp_try_feed (grp); |
744 | |
440 | |
745 | /* finish, if done */ |
441 | /* finish, if done */ |
746 | if (!grp->size && grp->int1) |
442 | if (!grp->size && grp->flags & ETP_FLAG_DELAYED) |
747 | return eio_finish (grp); |
443 | return eio_finish (grp); |
748 | else |
444 | else |
749 | return 0; |
445 | return 0; |
750 | } |
446 | } |
751 | |
447 | |
… | |
… | |
787 | } |
483 | } |
788 | |
484 | |
789 | void |
485 | void |
790 | eio_grp_cancel (eio_req *grp) |
486 | eio_grp_cancel (eio_req *grp) |
791 | { |
487 | { |
792 | for (grp = grp->grp_first; grp; grp = grp->grp_next) |
488 | etp_grp_cancel (EIO_POOL, grp); |
793 | eio_cancel (grp); |
|
|
794 | } |
489 | } |
795 | |
490 | |
796 | void |
491 | void |
797 | eio_cancel (eio_req *req) |
492 | eio_cancel (eio_req *req) |
798 | { |
493 | { |
799 | etp_cancel (req); |
494 | etp_cancel (EIO_POOL, req); |
800 | } |
495 | } |
801 | |
496 | |
802 | void |
497 | void |
803 | eio_submit (eio_req *req) |
498 | eio_submit (eio_req *req) |
804 | { |
499 | { |
805 | etp_submit (req); |
500 | etp_submit (EIO_POOL, req); |
806 | } |
501 | } |
807 | |
502 | |
808 | unsigned int |
503 | unsigned int |
809 | eio_nreqs (void) |
504 | eio_nreqs (void) |
810 | { |
505 | { |
811 | return etp_nreqs (); |
506 | return etp_nreqs (EIO_POOL); |
812 | } |
507 | } |
813 | |
508 | |
814 | unsigned int |
509 | unsigned int |
815 | eio_nready (void) |
510 | eio_nready (void) |
816 | { |
511 | { |
817 | return etp_nready (); |
512 | return etp_nready (EIO_POOL); |
818 | } |
513 | } |
819 | |
514 | |
820 | unsigned int |
515 | unsigned int |
821 | eio_npending (void) |
516 | eio_npending (void) |
822 | { |
517 | { |
823 | return etp_npending (); |
518 | return etp_npending (EIO_POOL); |
824 | } |
519 | } |
825 | |
520 | |
826 | unsigned int ecb_cold |
521 | unsigned int ecb_cold |
827 | eio_nthreads (void) |
522 | eio_nthreads (void) |
828 | { |
523 | { |
829 | return etp_nthreads (); |
524 | return etp_nthreads (EIO_POOL); |
830 | } |
525 | } |
831 | |
526 | |
832 | void ecb_cold |
527 | void ecb_cold |
833 | eio_set_max_poll_time (double nseconds) |
528 | eio_set_max_poll_time (double nseconds) |
834 | { |
529 | { |
835 | etp_set_max_poll_time (nseconds); |
530 | etp_set_max_poll_time (EIO_POOL, nseconds); |
836 | } |
531 | } |
837 | |
532 | |
838 | void ecb_cold |
533 | void ecb_cold |
839 | eio_set_max_poll_reqs (unsigned int maxreqs) |
534 | eio_set_max_poll_reqs (unsigned int maxreqs) |
840 | { |
535 | { |
841 | etp_set_max_poll_reqs (maxreqs); |
536 | etp_set_max_poll_reqs (EIO_POOL, maxreqs); |
842 | } |
537 | } |
843 | |
538 | |
844 | void ecb_cold |
539 | void ecb_cold |
845 | eio_set_max_idle (unsigned int nthreads) |
540 | eio_set_max_idle (unsigned int nthreads) |
846 | { |
541 | { |
847 | etp_set_max_idle (nthreads); |
542 | etp_set_max_idle (EIO_POOL, nthreads); |
848 | } |
543 | } |
849 | |
544 | |
850 | void ecb_cold |
545 | void ecb_cold |
851 | eio_set_idle_timeout (unsigned int seconds) |
546 | eio_set_idle_timeout (unsigned int seconds) |
852 | { |
547 | { |
853 | etp_set_idle_timeout (seconds); |
548 | etp_set_idle_timeout (EIO_POOL, seconds); |
854 | } |
549 | } |
855 | |
550 | |
856 | void ecb_cold |
551 | void ecb_cold |
857 | eio_set_min_parallel (unsigned int nthreads) |
552 | eio_set_min_parallel (unsigned int nthreads) |
858 | { |
553 | { |
859 | etp_set_min_parallel (nthreads); |
554 | etp_set_min_parallel (EIO_POOL, nthreads); |
860 | } |
555 | } |
861 | |
556 | |
862 | void ecb_cold |
557 | void ecb_cold |
863 | eio_set_max_parallel (unsigned int nthreads) |
558 | eio_set_max_parallel (unsigned int nthreads) |
864 | { |
559 | { |
865 | etp_set_max_parallel (nthreads); |
560 | etp_set_max_parallel (EIO_POOL, nthreads); |
866 | } |
561 | } |
867 | |
562 | |
868 | int eio_poll (void) |
563 | int eio_poll (void) |
869 | { |
564 | { |
870 | return etp_poll (); |
565 | return etp_poll (EIO_POOL); |
871 | } |
566 | } |
872 | |
567 | |
873 | /*****************************************************************************/ |
568 | /*****************************************************************************/ |
874 | /* work around various missing functions */ |
569 | /* work around various missing functions */ |
875 | |
570 | |
876 | #if !HAVE_PREADWRITE |
571 | #if HAVE_POSIX_CLOSE && !__linux |
877 | # undef pread |
572 | # define eio__close(fd) posix_close (fd, 0) |
878 | # undef pwrite |
573 | #else |
879 | # define pread eio__pread |
574 | # define eio__close(fd) close (fd) |
880 | # define pwrite eio__pwrite |
|
|
881 | |
|
|
882 | static eio_ssize_t |
|
|
883 | eio__pread (int fd, void *buf, size_t count, off_t offset) |
|
|
884 | { |
|
|
885 | eio_ssize_t res; |
|
|
886 | off_t ooffset; |
|
|
887 | |
|
|
888 | X_LOCK (preadwritelock); |
|
|
889 | ooffset = lseek (fd, 0, SEEK_CUR); |
|
|
890 | lseek (fd, offset, SEEK_SET); |
|
|
891 | res = read (fd, buf, count); |
|
|
892 | lseek (fd, ooffset, SEEK_SET); |
|
|
893 | X_UNLOCK (preadwritelock); |
|
|
894 | |
|
|
895 | return res; |
|
|
896 | } |
|
|
897 | |
|
|
898 | static eio_ssize_t |
|
|
899 | eio__pwrite (int fd, void *buf, size_t count, off_t offset) |
|
|
900 | { |
|
|
901 | eio_ssize_t res; |
|
|
902 | off_t ooffset; |
|
|
903 | |
|
|
904 | X_LOCK (preadwritelock); |
|
|
905 | ooffset = lseek (fd, 0, SEEK_CUR); |
|
|
906 | lseek (fd, offset, SEEK_SET); |
|
|
907 | res = write (fd, buf, count); |
|
|
908 | lseek (fd, ooffset, SEEK_SET); |
|
|
909 | X_UNLOCK (preadwritelock); |
|
|
910 | |
|
|
911 | return res; |
|
|
912 | } |
|
|
913 | #endif |
575 | #endif |
|
|
576 | |
|
|
577 | /* close() without disturbing errno */ |
|
|
578 | static void |
|
|
579 | silent_close (int fd) |
|
|
580 | { |
|
|
581 | int saved_errno = errno; |
|
|
582 | eio__close (fd); |
|
|
583 | errno = saved_errno; |
|
|
584 | } |
914 | |
585 | |
915 | #ifndef HAVE_UTIMES |
586 | #ifndef HAVE_UTIMES |
916 | |
587 | |
917 | # undef utimes |
588 | # undef utimes |
918 | # define utimes(path,times) eio__utimes (path, times) |
589 | # define utimes(path,times) eio__utimes (path, times) |
… | |
… | |
951 | |
622 | |
952 | #if !HAVE_FDATASYNC |
623 | #if !HAVE_FDATASYNC |
953 | # undef fdatasync |
624 | # undef fdatasync |
954 | # define fdatasync(fd) fsync (fd) |
625 | # define fdatasync(fd) fsync (fd) |
955 | #endif |
626 | #endif |
|
|
627 | |
|
|
628 | static int |
|
|
629 | eio__syncfs (int fd) |
|
|
630 | { |
|
|
631 | int res; |
|
|
632 | |
|
|
633 | #if HAVE_SYS_SYNCFS |
|
|
634 | res = (int)syscall (__NR_syncfs, (int)(fd)); |
|
|
635 | #else |
|
|
636 | res = EIO_ENOSYS (); |
|
|
637 | #endif |
|
|
638 | |
|
|
639 | if (res < 0 && errno == ENOSYS && fd >= 0) |
|
|
640 | sync (); |
|
|
641 | |
|
|
642 | return res; |
|
|
643 | } |
956 | |
644 | |
957 | /* sync_file_range always needs emulation */ |
645 | /* sync_file_range always needs emulation */ |
958 | static int |
646 | static int |
959 | eio__sync_file_range (int fd, off_t offset, size_t nbytes, unsigned int flags) |
647 | eio__sync_file_range (int fd, off_t offset, size_t nbytes, unsigned int flags) |
960 | { |
648 | { |
… | |
… | |
983 | } |
671 | } |
984 | |
672 | |
985 | static int |
673 | static int |
986 | eio__fallocate (int fd, int mode, off_t offset, size_t len) |
674 | eio__fallocate (int fd, int mode, off_t offset, size_t len) |
987 | { |
675 | { |
988 | #if HAVE_FALLOCATE |
676 | #if HAVE_LINUX_FALLOCATE |
989 | return fallocate (fd, mode, offset, len); |
677 | return fallocate (fd, mode, offset, len); |
990 | #else |
678 | #else |
991 | errno = ENOSYS; |
679 | return EIO_ENOSYS (); |
992 | return -1; |
|
|
993 | #endif |
680 | #endif |
994 | } |
681 | } |
995 | |
682 | |
996 | #if !HAVE_READAHEAD |
683 | #if !HAVE_READAHEAD |
997 | # undef readahead |
684 | # undef readahead |
… | |
… | |
1010 | pread (fd, eio_buf, len, offset); |
697 | pread (fd, eio_buf, len, offset); |
1011 | offset += len; |
698 | offset += len; |
1012 | todo -= len; |
699 | todo -= len; |
1013 | } |
700 | } |
1014 | |
701 | |
1015 | errno = 0; |
702 | FUBd; |
|
|
703 | |
|
|
704 | /* linux's readahead basically only fails for EBADF or EINVAL (not mmappable) */ |
|
|
705 | /* but not for e.g. EIO or eof, so we also never fail */ |
1016 | return count; |
706 | return 0; |
1017 | } |
707 | } |
1018 | |
708 | |
1019 | #endif |
709 | #endif |
1020 | |
710 | |
1021 | /* sendfile always needs emulation */ |
711 | /* sendfile always needs emulation */ |
1022 | static eio_ssize_t |
712 | static eio_ssize_t |
1023 | eio__sendfile (int ofd, int ifd, off_t offset, size_t count, etp_worker *self) |
713 | eio__sendfile (int ofd, int ifd, off_t offset, size_t count) |
1024 | { |
714 | { |
1025 | eio_ssize_t written = 0; |
715 | eio_ssize_t written = 0; |
1026 | eio_ssize_t res; |
716 | eio_ssize_t res; |
1027 | |
717 | |
1028 | if (!count) |
718 | if (!count) |
… | |
… | |
1056 | |
746 | |
1057 | /* according to source inspection, this is correct, and useful behaviour */ |
747 | /* according to source inspection, this is correct, and useful behaviour */ |
1058 | if (sbytes) |
748 | if (sbytes) |
1059 | res = sbytes; |
749 | res = sbytes; |
1060 | |
750 | |
1061 | # elif defined (__APPLE__) |
751 | # elif defined __APPLE__ |
1062 | off_t sbytes = count; |
752 | off_t sbytes = count; |
1063 | res = sendfile (ifd, ofd, offset, &sbytes, 0, 0); |
753 | res = sendfile (ifd, ofd, offset, &sbytes, 0, 0); |
1064 | |
754 | |
1065 | /* according to the manpage, sbytes is always valid */ |
755 | /* according to the manpage, sbytes is always valid */ |
1066 | if (sbytes) |
756 | if (sbytes) |
… | |
… | |
1093 | HANDLE h = TO_SOCKET (ifd); |
783 | HANDLE h = TO_SOCKET (ifd); |
1094 | SetFilePointer (h, offset, 0, FILE_BEGIN); |
784 | SetFilePointer (h, offset, 0, FILE_BEGIN); |
1095 | res = TransmitFile (TO_SOCKET (ofd), h, count, 0, 0, 0, 0); |
785 | res = TransmitFile (TO_SOCKET (ofd), h, count, 0, 0, 0, 0); |
1096 | |
786 | |
1097 | #else |
787 | #else |
1098 | res = -1; |
788 | res = EIO_ENOSYS (); |
1099 | errno = ENOSYS; |
|
|
1100 | #endif |
789 | #endif |
1101 | |
790 | |
1102 | /* we assume sendfile can copy at least 128mb in one go */ |
791 | /* we assume sendfile can copy at least 128mb in one go */ |
1103 | if (res <= 128 * 1024 * 1024) |
792 | if (res <= 128 * 1024 * 1024) |
1104 | { |
793 | { |
… | |
… | |
1126 | && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK |
815 | && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK |
1127 | /* BSDs */ |
816 | /* BSDs */ |
1128 | #ifdef ENOTSUP /* sigh, if the steenking pile called openbsd would only try to at least compile posix code... */ |
817 | #ifdef ENOTSUP /* sigh, if the steenking pile called openbsd would only try to at least compile posix code... */ |
1129 | || errno == ENOTSUP |
818 | || errno == ENOTSUP |
1130 | #endif |
819 | #endif |
|
|
820 | #ifdef EOPNOTSUPP /* windows */ |
1131 | || errno == EOPNOTSUPP /* BSDs */ |
821 | || errno == EOPNOTSUPP /* BSDs */ |
|
|
822 | #endif |
1132 | #if __solaris |
823 | #if __solaris |
1133 | || errno == EAFNOSUPPORT || errno == EPROTOTYPE |
824 | || errno == EAFNOSUPPORT || errno == EPROTOTYPE |
1134 | #endif |
825 | #endif |
1135 | ) |
826 | ) |
1136 | ) |
827 | ) |
… | |
… | |
1162 | |
853 | |
1163 | offset += cnt; |
854 | offset += cnt; |
1164 | res += cnt; |
855 | res += cnt; |
1165 | count -= cnt; |
856 | count -= cnt; |
1166 | } |
857 | } |
|
|
858 | |
|
|
859 | FUBd; |
1167 | } |
860 | } |
1168 | |
861 | |
1169 | return res; |
862 | return res; |
1170 | } |
863 | } |
1171 | |
864 | |
… | |
… | |
1275 | intptr_t end = addr + len; |
968 | intptr_t end = addr + len; |
1276 | intptr_t page = eio_pagesize (); |
969 | intptr_t page = eio_pagesize (); |
1277 | |
970 | |
1278 | if (addr < end) |
971 | if (addr < end) |
1279 | if (flags & EIO_MT_MODIFY) /* modify */ |
972 | if (flags & EIO_MT_MODIFY) /* modify */ |
1280 | do { *((volatile sig_atomic_t *)addr) |= 0; } while ((addr += page) < len && !EIO_CANCELLED (req)); |
973 | do { *((volatile sig_atomic_t *)addr) |= 0; } while ((addr += page) < end && !EIO_CANCELLED (req)); |
1281 | else |
974 | else |
1282 | do { *((volatile sig_atomic_t *)addr) ; } while ((addr += page) < len && !EIO_CANCELLED (req)); |
975 | do { *((volatile sig_atomic_t *)addr) ; } while ((addr += page) < end && !EIO_CANCELLED (req)); |
1283 | } |
976 | } |
1284 | |
977 | |
1285 | return 0; |
978 | return 0; |
1286 | } |
979 | } |
1287 | |
980 | |
1288 | /*****************************************************************************/ |
981 | /*****************************************************************************/ |
1289 | /* requests implemented outside eio_execute, because they are so large */ |
982 | /* requests implemented outside eio_execute, because they are so large */ |
1290 | |
983 | |
1291 | static void |
984 | static void |
1292 | eio__realpath (eio_req *req, etp_worker *self) |
985 | eio__lseek (eio_req *req) |
1293 | { |
986 | { |
1294 | char *rel = req->ptr1; |
987 | /* this usually gets optimised away completely, or your compiler sucks, */ |
|
|
988 | /* or the whence constants really are not 0, 1, 2 */ |
|
|
989 | int whence = req->int2 == EIO_SEEK_SET ? SEEK_SET |
|
|
990 | : req->int2 == EIO_SEEK_CUR ? SEEK_CUR |
|
|
991 | : req->int2 == EIO_SEEK_END ? SEEK_END |
|
|
992 | : req->int2; |
|
|
993 | |
|
|
994 | req->offs = lseek (req->int1, req->offs, whence); |
|
|
995 | req->result = req->offs == (off_t)-1 ? -1 : 0; |
|
|
996 | } |
|
|
997 | |
|
|
998 | /* result will always end up in tmpbuf, there is always space for adding a 0-byte */ |
|
|
999 | static int |
|
|
1000 | eio__realpath (struct etp_tmpbuf *tmpbuf, eio_wd wd, const char *path) |
|
|
1001 | { |
1295 | char *res; |
1002 | char *res; |
|
|
1003 | const char *rel = path; |
1296 | char *tmp1, *tmp2; |
1004 | char *tmp1, *tmp2; |
1297 | #if SYMLOOP_MAX > 32 |
1005 | #if SYMLOOP_MAX > 32 |
1298 | int symlinks = SYMLOOP_MAX; |
1006 | int symlinks = SYMLOOP_MAX; |
1299 | #else |
1007 | #else |
1300 | int symlinks = 32; |
1008 | int symlinks = 32; |
1301 | #endif |
1009 | #endif |
1302 | |
1010 | |
1303 | req->result = -1; |
|
|
1304 | |
|
|
1305 | errno = EINVAL; |
1011 | errno = EINVAL; |
1306 | if (!rel) |
1012 | if (!rel) |
1307 | return; |
1013 | return -1; |
1308 | |
1014 | |
1309 | errno = ENOENT; |
1015 | errno = ENOENT; |
1310 | if (!*rel) |
1016 | if (!*rel) |
1311 | return; |
1017 | return -1; |
1312 | |
1018 | |
1313 | if (!req->ptr2) |
1019 | res = etp_tmpbuf_get (tmpbuf, EIO_PATH_MAX * 3); |
1314 | { |
1020 | #ifdef _WIN32 |
1315 | X_LOCK (wrklock); |
1021 | if (_access (rel, 4) != 0) |
1316 | req->flags |= EIO_FLAG_PTR2_FREE; |
|
|
1317 | X_UNLOCK (wrklock); |
|
|
1318 | req->ptr2 = malloc (PATH_MAX * 3); |
|
|
1319 | |
|
|
1320 | errno = ENOMEM; |
|
|
1321 | if (!req->ptr2) |
|
|
1322 | return; |
1022 | return -1; |
1323 | } |
|
|
1324 | |
1023 | |
1325 | res = req->ptr2; |
1024 | symlinks = GetFullPathName (rel, EIO_PATH_MAX * 3, res, 0); |
|
|
1025 | |
|
|
1026 | errno = ENAMETOOLONG; |
|
|
1027 | if (symlinks >= EIO_PATH_MAX * 3) |
|
|
1028 | return -1; |
|
|
1029 | |
|
|
1030 | errno = EIO; |
|
|
1031 | if (symlinks <= 0) |
|
|
1032 | return -1; |
|
|
1033 | |
|
|
1034 | return symlinks; |
|
|
1035 | |
|
|
1036 | #else |
1326 | tmp1 = res + PATH_MAX; |
1037 | tmp1 = res + EIO_PATH_MAX; |
1327 | tmp2 = tmp1 + PATH_MAX; |
1038 | tmp2 = tmp1 + EIO_PATH_MAX; |
1328 | |
1039 | |
1329 | #if 0 /* disabled, the musl way to do things is just too racy */ |
1040 | #if 0 /* disabled, the musl way to do things is just too racy */ |
1330 | #if __linux && defined(O_NONBLOCK) && defined(O_NOATIME) |
1041 | #if __linux && defined(O_NONBLOCK) && defined(O_NOATIME) |
1331 | /* on linux we may be able to ask the kernel */ |
1042 | /* on linux we may be able to ask the kernel */ |
1332 | { |
1043 | { |
1333 | int fd = open (rel, O_RDONLY | O_NONBLOCK | O_NOCTTY | O_NOATIME); |
1044 | int fd = open (rel, O_RDONLY | O_NONBLOCK | O_NOCTTY | O_NOATIME); |
1334 | |
1045 | |
1335 | if (fd >= 0) |
1046 | if (fd >= 0) |
1336 | { |
1047 | { |
1337 | sprintf (tmp1, "/proc/self/fd/%d", fd); |
1048 | sprintf (tmp1, "/proc/self/fd/%d", fd); |
1338 | req->result = readlink (tmp1, res, PATH_MAX); |
1049 | req->result = readlink (tmp1, res, EIO_PATH_MAX); |
1339 | close (fd); |
|
|
1340 | |
|
|
1341 | /* here we should probably stat the open file and the disk file, to make sure they still match */ |
1050 | /* here we should probably stat the open file and the disk file, to make sure they still match */ |
|
|
1051 | eio__close (fd); |
1342 | |
1052 | |
1343 | if (req->result > 0) |
1053 | if (req->result > 0) |
1344 | goto done; |
1054 | goto done; |
1345 | } |
1055 | } |
1346 | else if (errno == ELOOP || errno == ENAMETOOLONG || errno == ENOENT || errno == ENOTDIR || errno == EIO) |
1056 | else if (errno == ELOOP || errno == ENAMETOOLONG || errno == ENOENT || errno == ENOTDIR || errno == EIO) |
1347 | return; |
1057 | return -1; |
1348 | } |
1058 | } |
1349 | #endif |
1059 | #endif |
1350 | #endif |
1060 | #endif |
1351 | |
1061 | |
1352 | if (*rel != '/') |
1062 | if (*rel != '/') |
1353 | { |
1063 | { |
1354 | if (!getcwd (res, PATH_MAX)) |
1064 | int len; |
|
|
1065 | |
|
|
1066 | errno = ENOENT; |
|
|
1067 | if (wd == EIO_INVALID_WD) |
1355 | return; |
1068 | return -1; |
|
|
1069 | |
|
|
1070 | if (wd == EIO_CWD) |
|
|
1071 | { |
|
|
1072 | if (!getcwd (res, EIO_PATH_MAX)) |
|
|
1073 | return -1; |
|
|
1074 | |
|
|
1075 | len = strlen (res); |
|
|
1076 | } |
|
|
1077 | else |
|
|
1078 | memcpy (res, wd->str, len = wd->len); |
1356 | |
1079 | |
1357 | if (res [1]) /* only use if not / */ |
1080 | if (res [1]) /* only use if not / */ |
1358 | res += strlen (res); |
1081 | res += len; |
1359 | } |
1082 | } |
1360 | |
1083 | |
1361 | while (*rel) |
1084 | while (*rel) |
1362 | { |
1085 | { |
1363 | eio_ssize_t len, linklen; |
1086 | eio_ssize_t len, linklen; |
1364 | char *beg = rel; |
1087 | const char *beg = rel; |
1365 | |
1088 | |
1366 | while (*rel && *rel != '/') |
1089 | while (*rel && *rel != '/') |
1367 | ++rel; |
1090 | ++rel; |
1368 | |
1091 | |
1369 | len = rel - beg; |
1092 | len = rel - beg; |
… | |
… | |
1381 | |
1104 | |
1382 | if (beg [1] == '.' && len == 2) |
1105 | if (beg [1] == '.' && len == 2) |
1383 | { |
1106 | { |
1384 | /* .. - back up one component, if possible */ |
1107 | /* .. - back up one component, if possible */ |
1385 | |
1108 | |
1386 | while (res != req->ptr2) |
1109 | while (res != tmpbuf->ptr) |
1387 | if (*--res == '/') |
1110 | if (*--res == '/') |
1388 | break; |
1111 | break; |
1389 | |
1112 | |
1390 | continue; |
1113 | continue; |
1391 | } |
1114 | } |
1392 | } |
1115 | } |
1393 | |
1116 | |
1394 | errno = ENAMETOOLONG; |
1117 | errno = ENAMETOOLONG; |
1395 | if (res + 1 + len + 1 >= tmp1) |
1118 | if (res + 1 + len + 1 >= tmp1) |
1396 | return; |
1119 | return -1; |
1397 | |
1120 | |
1398 | /* copy one component */ |
1121 | /* copy one component */ |
1399 | *res = '/'; |
1122 | *res = '/'; |
1400 | memcpy (res + 1, beg, len); |
1123 | memcpy (res + 1, beg, len); |
1401 | |
1124 | |
1402 | /* zero-terminate, for readlink */ |
1125 | /* zero-terminate, for readlink */ |
1403 | res [len + 1] = 0; |
1126 | res [len + 1] = 0; |
1404 | |
1127 | |
1405 | /* now check if it's a symlink */ |
1128 | /* now check if it's a symlink */ |
1406 | linklen = readlink (req->ptr2, tmp1, PATH_MAX); |
1129 | linklen = readlink (tmpbuf->ptr, tmp1, EIO_PATH_MAX); |
1407 | |
1130 | |
1408 | if (linklen < 0) |
1131 | if (linklen < 0) |
1409 | { |
1132 | { |
1410 | if (errno != EINVAL) |
1133 | if (errno != EINVAL) |
1411 | return; |
1134 | return -1; |
1412 | |
1135 | |
1413 | /* it's a normal directory. hopefully */ |
1136 | /* it's a normal directory. hopefully */ |
1414 | res += len + 1; |
1137 | res += len + 1; |
1415 | } |
1138 | } |
1416 | else |
1139 | else |
1417 | { |
1140 | { |
1418 | /* yay, it was a symlink - build new path in tmp2 */ |
1141 | /* yay, it was a symlink - build new path in tmp2 */ |
1419 | int rellen = strlen (rel); |
1142 | int rellen = strlen (rel); |
1420 | |
1143 | |
1421 | errno = ENAMETOOLONG; |
1144 | errno = ENAMETOOLONG; |
1422 | if (linklen + 1 + rellen >= PATH_MAX) |
1145 | if (linklen + 1 + rellen >= EIO_PATH_MAX) /* also catch linklen >= EIO_PATH_MAX */ |
1423 | return; |
1146 | return -1; |
1424 | |
1147 | |
1425 | errno = ELOOP; |
1148 | errno = ELOOP; |
1426 | if (!--symlinks) |
1149 | if (!--symlinks) |
1427 | return; |
1150 | return -1; |
1428 | |
1151 | |
1429 | if (*tmp1 == '/') |
1152 | if (*tmp1 == '/') |
1430 | res = req->ptr2; /* symlink resolves to an absolute path */ |
1153 | res = tmpbuf->ptr; /* symlink resolves to an absolute path */ |
1431 | |
1154 | |
1432 | /* we need to be careful, as rel might point into tmp2 already */ |
1155 | /* we need to be careful, as rel might point into tmp2 already */ |
1433 | memmove (tmp2 + linklen + 1, rel, rellen + 1); |
1156 | memmove (tmp2 + linklen + 1, rel, rellen + 1); |
1434 | tmp2 [linklen] = '/'; |
1157 | tmp2 [linklen] = '/'; |
1435 | memcpy (tmp2, tmp1, linklen); |
1158 | memcpy (tmp2, tmp1, linklen); |
… | |
… | |
1437 | rel = tmp2; |
1160 | rel = tmp2; |
1438 | } |
1161 | } |
1439 | } |
1162 | } |
1440 | |
1163 | |
1441 | /* special case for the lone root path */ |
1164 | /* special case for the lone root path */ |
1442 | if (res == req->ptr2) |
1165 | if (res == tmpbuf->ptr) |
1443 | *res++ = '/'; |
1166 | *res++ = '/'; |
1444 | |
1167 | |
1445 | req->result = res - (char *)req->ptr2; |
1168 | return res - (char *)tmpbuf->ptr; |
1446 | |
1169 | #endif |
1447 | done: |
|
|
1448 | req->ptr2 = realloc (req->ptr2, req->result); /* trade time for space savings */ |
|
|
1449 | } |
1170 | } |
1450 | |
1171 | |
1451 | static signed char |
1172 | static signed char |
1452 | eio_dent_cmp (const eio_dirent *a, const eio_dirent *b) |
1173 | eio_dent_cmp (const eio_dirent *a, const eio_dirent *b) |
1453 | { |
1174 | { |
… | |
… | |
1461 | |
1182 | |
1462 | #define EIO_SORT_CUTOFF 30 /* quite high, but performs well on many filesystems */ |
1183 | #define EIO_SORT_CUTOFF 30 /* quite high, but performs well on many filesystems */ |
1463 | #define EIO_SORT_FAST 60 /* when to only use insertion sort */ |
1184 | #define EIO_SORT_FAST 60 /* when to only use insertion sort */ |
1464 | |
1185 | |
1465 | static void |
1186 | static void |
1466 | eio_dent_radix_sort (eio_dirent *dents, int size, signed char score_bits, ino_t inode_bits) |
1187 | eio_dent_radix_sort (eio_dirent *dents, int size, signed char score_bits, eio_ino_t inode_bits) |
1467 | { |
1188 | { |
1468 | unsigned char bits [9 + sizeof (ino_t) * 8]; |
1189 | unsigned char bits [9 + sizeof (eio_ino_t) * 8]; |
1469 | unsigned char *bit = bits; |
1190 | unsigned char *bit = bits; |
1470 | |
1191 | |
1471 | assert (CHAR_BIT == 8); |
1192 | assert (CHAR_BIT == 8); |
1472 | assert (sizeof (eio_dirent) * 8 < 256); |
1193 | assert (sizeof (eio_dirent) * 8 < 256); |
1473 | assert (offsetof (eio_dirent, inode)); /* we use bit #0 as sentinel */ |
1194 | assert (offsetof (eio_dirent, inode)); /* we use bit #0 as sentinel */ |
… | |
… | |
1475 | |
1196 | |
1476 | if (size <= EIO_SORT_FAST) |
1197 | if (size <= EIO_SORT_FAST) |
1477 | return; |
1198 | return; |
1478 | |
1199 | |
1479 | /* first prepare an array of bits to test in our radix sort */ |
1200 | /* first prepare an array of bits to test in our radix sort */ |
1480 | /* try to take endianness into account, as well as differences in ino_t sizes */ |
1201 | /* try to take endianness into account, as well as differences in eio_ino_t sizes */ |
1481 | /* inode_bits must contain all inodes ORed together */ |
1202 | /* inode_bits must contain all inodes ORed together */ |
1482 | /* which is used to skip bits that are 0 everywhere, which is very common */ |
1203 | /* which is used to skip bits that are 0 everywhere, which is very common */ |
1483 | { |
1204 | { |
1484 | ino_t endianness; |
1205 | eio_ino_t endianness; |
1485 | int i, j; |
1206 | int i, j; |
1486 | |
1207 | |
1487 | /* we store the byte offset of byte n into byte n of "endianness" */ |
1208 | /* we store the byte offset of byte n into byte n of "endianness" */ |
1488 | for (i = 0; i < sizeof (ino_t); ++i) |
1209 | for (i = 0; i < sizeof (eio_ino_t); ++i) |
1489 | ((unsigned char *)&endianness)[i] = i; |
1210 | ((unsigned char *)&endianness)[i] = i; |
1490 | |
1211 | |
1491 | *bit++ = 0; |
1212 | *bit++ = 0; |
1492 | |
1213 | |
1493 | for (i = 0; i < sizeof (ino_t); ++i) |
1214 | for (i = 0; i < sizeof (eio_ino_t); ++i) |
1494 | { |
1215 | { |
1495 | /* shifting off the byte offsets out of "endianness" */ |
1216 | /* shifting off the byte offsets out of "endianness" */ |
1496 | int offs = (offsetof (eio_dirent, inode) + (endianness & 0xff)) * 8; |
1217 | int offs = (offsetof (eio_dirent, inode) + (endianness & 0xff)) * 8; |
1497 | endianness >>= 8; |
1218 | endianness >>= 8; |
1498 | |
1219 | |
1499 | for (j = 0; j < 8; ++j) |
1220 | for (j = 0; j < 8; ++j) |
1500 | if (inode_bits & (((ino_t)1) << (i * 8 + j))) |
1221 | if (inode_bits & (((eio_ino_t)1) << (i * 8 + j))) |
1501 | *bit++ = offs + j; |
1222 | *bit++ = offs + j; |
1502 | } |
1223 | } |
1503 | |
1224 | |
1504 | for (j = 0; j < 8; ++j) |
1225 | for (j = 0; j < 8; ++j) |
1505 | if (score_bits & (1 << j)) |
1226 | if (score_bits & (1 << j)) |
1506 | *bit++ = offsetof (eio_dirent, score) * 8 + j; |
1227 | *bit++ = offsetof (eio_dirent, score) * 8 + j; |
1507 | } |
1228 | } |
1508 | |
1229 | |
1509 | /* now actually do the sorting (a variant of MSD radix sort) */ |
1230 | /* now actually do the sorting (a variant of MSD radix sort) */ |
1510 | { |
1231 | { |
1511 | eio_dirent *base_stk [9 + sizeof (ino_t) * 8], *base; |
1232 | eio_dirent *base_stk [9 + sizeof (eio_ino_t) * 8], *base; |
1512 | eio_dirent *end_stk [9 + sizeof (ino_t) * 8], *end; |
1233 | eio_dirent *end_stk [9 + sizeof (eio_ino_t) * 8], *end; |
1513 | unsigned char *bit_stk [9 + sizeof (ino_t) * 8]; |
1234 | unsigned char *bit_stk [9 + sizeof (eio_ino_t) * 8]; |
1514 | int stk_idx = 0; |
1235 | int stk_idx = 0; |
1515 | |
1236 | |
1516 | base_stk [stk_idx] = dents; |
1237 | base_stk [stk_idx] = dents; |
1517 | end_stk [stk_idx] = dents + size; |
1238 | end_stk [stk_idx] = dents + size; |
1518 | bit_stk [stk_idx] = bit - 1; |
1239 | bit_stk [stk_idx] = bit - 1; |
… | |
… | |
1597 | } |
1318 | } |
1598 | } |
1319 | } |
1599 | } |
1320 | } |
1600 | |
1321 | |
1601 | static void |
1322 | static void |
1602 | eio_dent_sort (eio_dirent *dents, int size, signed char score_bits, ino_t inode_bits) |
1323 | eio_dent_sort (eio_dirent *dents, int size, signed char score_bits, eio_ino_t inode_bits) |
1603 | { |
1324 | { |
1604 | if (size <= 1) |
1325 | if (size <= 1) |
1605 | return; /* our insertion sort relies on size > 0 */ |
1326 | return; /* our insertion sort relies on size > 0 */ |
1606 | |
1327 | |
1607 | /* first we use a radix sort, but only for dirs >= EIO_SORT_FAST */ |
1328 | /* first we use a radix sort, but only for dirs >= EIO_SORT_FAST */ |
… | |
… | |
1615 | |
1336 | |
1616 | /* read a full directory */ |
1337 | /* read a full directory */ |
1617 | static void |
1338 | static void |
1618 | eio__scandir (eio_req *req, etp_worker *self) |
1339 | eio__scandir (eio_req *req, etp_worker *self) |
1619 | { |
1340 | { |
1620 | DIR *dirp; |
|
|
1621 | EIO_STRUCT_DIRENT *entp; |
|
|
1622 | char *name, *names; |
1341 | char *name, *names; |
1623 | int namesalloc = 4096; |
1342 | int namesalloc = 4096 - sizeof (void *) * 4; |
1624 | int namesoffs = 0; |
1343 | int namesoffs = 0; |
1625 | int flags = req->int1; |
1344 | int flags = req->int1; |
1626 | eio_dirent *dents = 0; |
1345 | eio_dirent *dents = 0; |
1627 | int dentalloc = 128; |
1346 | int dentalloc = 128; |
1628 | int dentoffs = 0; |
1347 | int dentoffs = 0; |
1629 | ino_t inode_bits = 0; |
1348 | eio_ino_t inode_bits = 0; |
|
|
1349 | #ifdef _WIN32 |
|
|
1350 | HANDLE dirp; |
|
|
1351 | WIN32_FIND_DATA entp; |
|
|
1352 | #else |
|
|
1353 | DIR *dirp; |
|
|
1354 | EIO_STRUCT_DIRENT *entp; |
|
|
1355 | #endif |
1630 | |
1356 | |
1631 | req->result = -1; |
1357 | req->result = -1; |
1632 | |
1358 | |
1633 | if (!(flags & EIO_READDIR_DENTS)) |
1359 | if (!(flags & EIO_READDIR_DENTS)) |
1634 | flags &= ~(EIO_READDIR_DIRS_FIRST | EIO_READDIR_STAT_ORDER); |
1360 | flags &= ~(EIO_READDIR_DIRS_FIRST | EIO_READDIR_STAT_ORDER); |
1635 | |
1361 | |
1636 | X_LOCK (wrklock); |
1362 | #ifdef _WIN32 |
1637 | /* the corresponding closedir is in ETP_WORKER_CLEAR */ |
1363 | { |
1638 | self->dirp = dirp = opendir (req->ptr1); |
1364 | int len = strlen ((const char *)req->ptr1); |
|
|
1365 | char *path = malloc (MAX_PATH); |
|
|
1366 | const char *fmt; |
|
|
1367 | const char *reqpath = wd_expand (&self->tmpbuf, req->wd, req->ptr1); |
|
|
1368 | |
|
|
1369 | if (!len) |
|
|
1370 | fmt = "./*"; |
|
|
1371 | else if (reqpath[len - 1] == '/' || reqpath[len - 1] == '\\') |
|
|
1372 | fmt = "%s*"; |
|
|
1373 | else |
|
|
1374 | fmt = "%s/*"; |
|
|
1375 | |
|
|
1376 | _snprintf (path, MAX_PATH, fmt, reqpath); |
|
|
1377 | dirp = FindFirstFile (path, &entp); |
|
|
1378 | free (path); |
|
|
1379 | |
|
|
1380 | if (dirp == INVALID_HANDLE_VALUE) |
|
|
1381 | { |
|
|
1382 | /* should steal _dosmaperr */ |
|
|
1383 | switch (GetLastError ()) |
|
|
1384 | { |
|
|
1385 | case ERROR_FILE_NOT_FOUND: |
|
|
1386 | req->result = 0; |
|
|
1387 | break; |
|
|
1388 | |
|
|
1389 | case ERROR_INVALID_NAME: |
|
|
1390 | case ERROR_PATH_NOT_FOUND: |
|
|
1391 | case ERROR_NO_MORE_FILES: |
|
|
1392 | errno = ENOENT; |
|
|
1393 | break; |
|
|
1394 | |
|
|
1395 | case ERROR_NOT_ENOUGH_MEMORY: |
|
|
1396 | errno = ENOMEM; |
|
|
1397 | break; |
|
|
1398 | |
|
|
1399 | default: |
|
|
1400 | errno = EINVAL; |
|
|
1401 | break; |
|
|
1402 | } |
|
|
1403 | |
|
|
1404 | return; |
|
|
1405 | } |
|
|
1406 | } |
|
|
1407 | #else |
|
|
1408 | #if HAVE_AT |
|
|
1409 | { |
|
|
1410 | int fd = openat (WD2FD (req->wd), req->ptr1, O_CLOEXEC | O_SEARCH | O_DIRECTORY | O_NONBLOCK); |
|
|
1411 | |
|
|
1412 | if (fd < 0) |
|
|
1413 | return; |
|
|
1414 | |
|
|
1415 | dirp = fdopendir (fd); |
|
|
1416 | |
|
|
1417 | if (!dirp) |
|
|
1418 | { |
|
|
1419 | silent_close (fd); |
|
|
1420 | return; |
|
|
1421 | } |
|
|
1422 | } |
|
|
1423 | #else |
|
|
1424 | dirp = opendir (wd_expand (&self->tmpbuf, req->wd, req->ptr1)); |
|
|
1425 | |
|
|
1426 | if (!dirp) |
|
|
1427 | return; |
|
|
1428 | #endif |
|
|
1429 | #endif |
1639 | |
1430 | |
1640 | if (req->flags & EIO_FLAG_PTR1_FREE) |
1431 | if (req->flags & EIO_FLAG_PTR1_FREE) |
1641 | free (req->ptr1); |
1432 | free (req->ptr1); |
1642 | |
1433 | |
1643 | req->flags |= EIO_FLAG_PTR1_FREE | EIO_FLAG_PTR2_FREE; |
1434 | req->flags |= EIO_FLAG_PTR1_FREE | EIO_FLAG_PTR2_FREE; |
1644 | req->ptr1 = dents = flags ? malloc (dentalloc * sizeof (eio_dirent)) : 0; |
1435 | req->ptr1 = dents = flags ? malloc (dentalloc * sizeof (eio_dirent)) : 0; |
1645 | req->ptr2 = names = malloc (namesalloc); |
1436 | req->ptr2 = names = malloc (namesalloc); |
1646 | X_UNLOCK (wrklock); |
|
|
1647 | |
1437 | |
1648 | if (dirp && names && (!flags || dents)) |
1438 | if (!names || (flags && !dents)) |
|
|
1439 | return; |
|
|
1440 | |
1649 | for (;;) |
1441 | for (;;) |
1650 | { |
1442 | { |
|
|
1443 | int done; |
|
|
1444 | |
|
|
1445 | #ifdef _WIN32 |
|
|
1446 | done = !dirp; |
|
|
1447 | #else |
1651 | errno = 0; |
1448 | errno = 0; |
1652 | entp = readdir (dirp); |
1449 | entp = readdir (dirp); |
|
|
1450 | done = !entp; |
|
|
1451 | #endif |
1653 | |
1452 | |
1654 | if (!entp) |
1453 | if (done) |
1655 | { |
1454 | { |
|
|
1455 | #ifndef _WIN32 |
|
|
1456 | int old_errno = errno; |
|
|
1457 | closedir (dirp); |
|
|
1458 | errno = old_errno; |
|
|
1459 | |
1656 | if (errno) |
1460 | if (errno) |
1657 | break; |
1461 | break; |
|
|
1462 | #endif |
1658 | |
1463 | |
1659 | /* sort etc. */ |
1464 | /* sort etc. */ |
1660 | req->int1 = flags; |
1465 | req->int1 = flags; |
1661 | req->result = dentoffs; |
1466 | req->result = dentoffs; |
1662 | |
1467 | |
1663 | if (flags & EIO_READDIR_STAT_ORDER) |
1468 | if (flags & EIO_READDIR_STAT_ORDER) |
1664 | eio_dent_sort (dents, dentoffs, flags & EIO_READDIR_DIRS_FIRST ? 7 : 0, inode_bits); |
1469 | eio_dent_sort (dents, dentoffs, flags & EIO_READDIR_DIRS_FIRST ? 7 : 0, inode_bits); |
1665 | else if (flags & EIO_READDIR_DIRS_FIRST) |
1470 | else if (flags & EIO_READDIR_DIRS_FIRST) |
1666 | if (flags & EIO_READDIR_FOUND_UNKNOWN) |
1471 | if (flags & EIO_READDIR_FOUND_UNKNOWN) |
1667 | eio_dent_sort (dents, dentoffs, 7, inode_bits); /* sort by score and inode */ |
1472 | eio_dent_sort (dents, dentoffs, 7, inode_bits); /* sort by score and inode */ |
1668 | else |
1473 | else |
|
|
1474 | { |
|
|
1475 | /* in this case, all is known, and we just put dirs first and sort them */ |
|
|
1476 | eio_dirent *oth = dents + dentoffs; |
|
|
1477 | eio_dirent *dir = dents; |
|
|
1478 | |
|
|
1479 | /* now partition dirs to the front, and non-dirs to the back */ |
|
|
1480 | /* by walking from both sides and swapping if necessary */ |
|
|
1481 | while (oth > dir) |
|
|
1482 | { |
|
|
1483 | if (dir->type == EIO_DT_DIR) |
|
|
1484 | ++dir; |
|
|
1485 | else if ((--oth)->type == EIO_DT_DIR) |
|
|
1486 | { |
|
|
1487 | eio_dirent tmp = *dir; *dir = *oth; *oth = tmp; |
|
|
1488 | |
|
|
1489 | ++dir; |
|
|
1490 | } |
|
|
1491 | } |
|
|
1492 | |
|
|
1493 | /* now sort the dirs only (dirs all have the same score) */ |
|
|
1494 | eio_dent_sort (dents, dir - dents, 0, inode_bits); |
|
|
1495 | } |
|
|
1496 | |
|
|
1497 | break; |
|
|
1498 | } |
|
|
1499 | |
|
|
1500 | /* now add the entry to our list(s) */ |
|
|
1501 | name = D_NAME (entp); |
|
|
1502 | |
|
|
1503 | /* skip . and .. entries */ |
|
|
1504 | if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2]))) |
|
|
1505 | { |
|
|
1506 | int len = D_NAMLEN (entp) + 1; |
|
|
1507 | |
|
|
1508 | while (ecb_expect_false (namesoffs + len > namesalloc)) |
|
|
1509 | { |
|
|
1510 | namesalloc *= 2; |
|
|
1511 | req->ptr2 = names = realloc (names, namesalloc); |
|
|
1512 | |
|
|
1513 | if (!names) |
|
|
1514 | break; |
|
|
1515 | } |
|
|
1516 | |
|
|
1517 | memcpy (names + namesoffs, name, len); |
|
|
1518 | |
|
|
1519 | if (dents) |
|
|
1520 | { |
|
|
1521 | struct eio_dirent *ent; |
|
|
1522 | |
|
|
1523 | if (ecb_expect_false (dentoffs == dentalloc)) |
1669 | { |
1524 | { |
1670 | /* in this case, all is known, and we just put dirs first and sort them */ |
1525 | dentalloc *= 2; |
|
|
1526 | req->ptr1 = dents = realloc (dents, dentalloc * sizeof (eio_dirent)); |
|
|
1527 | |
|
|
1528 | if (!dents) |
|
|
1529 | break; |
|
|
1530 | } |
|
|
1531 | |
1671 | eio_dirent *oth = dents + dentoffs; |
1532 | ent = dents + dentoffs; |
1672 | eio_dirent *dir = dents; |
|
|
1673 | |
1533 | |
1674 | /* now partition dirs to the front, and non-dirs to the back */ |
1534 | ent->nameofs = namesoffs; /* rather dirtily we store the offset in the pointer */ |
1675 | /* by walking from both sides and swapping if necessary */ |
1535 | ent->namelen = len - 1; |
1676 | while (oth > dir) |
1536 | ent->inode = D_INO (entp); |
|
|
1537 | |
|
|
1538 | inode_bits |= ent->inode; |
|
|
1539 | |
|
|
1540 | switch (D_TYPE (entp)) |
|
|
1541 | { |
|
|
1542 | default: |
|
|
1543 | ent->type = EIO_DT_UNKNOWN; |
|
|
1544 | flags |= EIO_READDIR_FOUND_UNKNOWN; |
|
|
1545 | break; |
|
|
1546 | |
|
|
1547 | #ifdef DT_FIFO |
|
|
1548 | case DT_FIFO: ent->type = EIO_DT_FIFO; break; |
|
|
1549 | #endif |
|
|
1550 | #ifdef DT_CHR |
|
|
1551 | case DT_CHR: ent->type = EIO_DT_CHR; break; |
|
|
1552 | #endif |
|
|
1553 | #ifdef DT_MPC |
|
|
1554 | case DT_MPC: ent->type = EIO_DT_MPC; break; |
|
|
1555 | #endif |
|
|
1556 | #ifdef DT_DIR |
|
|
1557 | case DT_DIR: ent->type = EIO_DT_DIR; break; |
|
|
1558 | #endif |
|
|
1559 | #ifdef DT_NAM |
|
|
1560 | case DT_NAM: ent->type = EIO_DT_NAM; break; |
|
|
1561 | #endif |
|
|
1562 | #ifdef DT_BLK |
|
|
1563 | case DT_BLK: ent->type = EIO_DT_BLK; break; |
|
|
1564 | #endif |
|
|
1565 | #ifdef DT_MPB |
|
|
1566 | case DT_MPB: ent->type = EIO_DT_MPB; break; |
|
|
1567 | #endif |
|
|
1568 | #ifdef DT_REG |
|
|
1569 | case DT_REG: ent->type = EIO_DT_REG; break; |
|
|
1570 | #endif |
|
|
1571 | #ifdef DT_NWK |
|
|
1572 | case DT_NWK: ent->type = EIO_DT_NWK; break; |
|
|
1573 | #endif |
|
|
1574 | #ifdef DT_CMP |
|
|
1575 | case DT_CMP: ent->type = EIO_DT_CMP; break; |
|
|
1576 | #endif |
|
|
1577 | #ifdef DT_LNK |
|
|
1578 | case DT_LNK: ent->type = EIO_DT_LNK; break; |
|
|
1579 | #endif |
|
|
1580 | #ifdef DT_SOCK |
|
|
1581 | case DT_SOCK: ent->type = EIO_DT_SOCK; break; |
|
|
1582 | #endif |
|
|
1583 | #ifdef DT_DOOR |
|
|
1584 | case DT_DOOR: ent->type = EIO_DT_DOOR; break; |
|
|
1585 | #endif |
|
|
1586 | #ifdef DT_WHT |
|
|
1587 | case DT_WHT: ent->type = EIO_DT_WHT; break; |
|
|
1588 | #endif |
|
|
1589 | } |
|
|
1590 | |
|
|
1591 | ent->score = 7; |
|
|
1592 | |
|
|
1593 | if (flags & EIO_READDIR_DIRS_FIRST) |
|
|
1594 | { |
|
|
1595 | if (ent->type == EIO_DT_UNKNOWN) |
1677 | { |
1596 | { |
1678 | if (dir->type == EIO_DT_DIR) |
1597 | if (*name == '.') /* leading dots are likely directories, and, in any case, rare */ |
1679 | ++dir; |
1598 | ent->score = 1; |
1680 | else if ((--oth)->type == EIO_DT_DIR) |
1599 | else if (!strchr (name, '.')) /* absence of dots indicate likely dirs */ |
1681 | { |
1600 | ent->score = len <= 2 ? 4 - len : len <= 4 ? 4 : len <= 7 ? 5 : 6; /* shorter == more likely dir, but avoid too many classes */ |
1682 | eio_dirent tmp = *dir; *dir = *oth; *oth = tmp; |
|
|
1683 | |
|
|
1684 | ++dir; |
|
|
1685 | } |
|
|
1686 | } |
1601 | } |
1687 | |
1602 | else if (ent->type == EIO_DT_DIR) |
1688 | /* now sort the dirs only (dirs all have the same score) */ |
1603 | ent->score = 0; |
1689 | eio_dent_sort (dents, dir - dents, 0, inode_bits); |
|
|
1690 | } |
1604 | } |
1691 | |
|
|
1692 | break; |
|
|
1693 | } |
|
|
1694 | |
|
|
1695 | /* now add the entry to our list(s) */ |
|
|
1696 | name = entp->d_name; |
|
|
1697 | |
|
|
1698 | /* skip . and .. entries */ |
|
|
1699 | if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2]))) |
|
|
1700 | { |
|
|
1701 | int len = D_NAMLEN (entp) + 1; |
|
|
1702 | |
|
|
1703 | while (ecb_expect_false (namesoffs + len > namesalloc)) |
|
|
1704 | { |
|
|
1705 | namesalloc *= 2; |
|
|
1706 | X_LOCK (wrklock); |
|
|
1707 | req->ptr2 = names = realloc (names, namesalloc); |
|
|
1708 | X_UNLOCK (wrklock); |
|
|
1709 | |
|
|
1710 | if (!names) |
|
|
1711 | break; |
|
|
1712 | } |
1605 | } |
1713 | |
1606 | |
1714 | memcpy (names + namesoffs, name, len); |
|
|
1715 | |
|
|
1716 | if (dents) |
|
|
1717 | { |
|
|
1718 | struct eio_dirent *ent; |
|
|
1719 | |
|
|
1720 | if (ecb_expect_false (dentoffs == dentalloc)) |
|
|
1721 | { |
|
|
1722 | dentalloc *= 2; |
|
|
1723 | X_LOCK (wrklock); |
|
|
1724 | req->ptr1 = dents = realloc (dents, dentalloc * sizeof (eio_dirent)); |
|
|
1725 | X_UNLOCK (wrklock); |
|
|
1726 | |
|
|
1727 | if (!dents) |
|
|
1728 | break; |
|
|
1729 | } |
|
|
1730 | |
|
|
1731 | ent = dents + dentoffs; |
|
|
1732 | |
|
|
1733 | ent->nameofs = namesoffs; /* rather dirtily we store the offset in the pointer */ |
|
|
1734 | ent->namelen = len - 1; |
|
|
1735 | ent->inode = D_INO (entp); |
|
|
1736 | |
|
|
1737 | inode_bits |= ent->inode; |
|
|
1738 | |
|
|
1739 | switch (D_TYPE (entp)) |
|
|
1740 | { |
|
|
1741 | default: |
|
|
1742 | ent->type = EIO_DT_UNKNOWN; |
|
|
1743 | flags |= EIO_READDIR_FOUND_UNKNOWN; |
|
|
1744 | break; |
|
|
1745 | |
|
|
1746 | #ifdef DT_FIFO |
|
|
1747 | case DT_FIFO: ent->type = EIO_DT_FIFO; break; |
|
|
1748 | #endif |
|
|
1749 | #ifdef DT_CHR |
|
|
1750 | case DT_CHR: ent->type = EIO_DT_CHR; break; |
|
|
1751 | #endif |
|
|
1752 | #ifdef DT_MPC |
|
|
1753 | case DT_MPC: ent->type = EIO_DT_MPC; break; |
|
|
1754 | #endif |
|
|
1755 | #ifdef DT_DIR |
|
|
1756 | case DT_DIR: ent->type = EIO_DT_DIR; break; |
|
|
1757 | #endif |
|
|
1758 | #ifdef DT_NAM |
|
|
1759 | case DT_NAM: ent->type = EIO_DT_NAM; break; |
|
|
1760 | #endif |
|
|
1761 | #ifdef DT_BLK |
|
|
1762 | case DT_BLK: ent->type = EIO_DT_BLK; break; |
|
|
1763 | #endif |
|
|
1764 | #ifdef DT_MPB |
|
|
1765 | case DT_MPB: ent->type = EIO_DT_MPB; break; |
|
|
1766 | #endif |
|
|
1767 | #ifdef DT_REG |
|
|
1768 | case DT_REG: ent->type = EIO_DT_REG; break; |
|
|
1769 | #endif |
|
|
1770 | #ifdef DT_NWK |
|
|
1771 | case DT_NWK: ent->type = EIO_DT_NWK; break; |
|
|
1772 | #endif |
|
|
1773 | #ifdef DT_CMP |
|
|
1774 | case DT_CMP: ent->type = EIO_DT_CMP; break; |
|
|
1775 | #endif |
|
|
1776 | #ifdef DT_LNK |
|
|
1777 | case DT_LNK: ent->type = EIO_DT_LNK; break; |
|
|
1778 | #endif |
|
|
1779 | #ifdef DT_SOCK |
|
|
1780 | case DT_SOCK: ent->type = EIO_DT_SOCK; break; |
|
|
1781 | #endif |
|
|
1782 | #ifdef DT_DOOR |
|
|
1783 | case DT_DOOR: ent->type = EIO_DT_DOOR; break; |
|
|
1784 | #endif |
|
|
1785 | #ifdef DT_WHT |
|
|
1786 | case DT_WHT: ent->type = EIO_DT_WHT; break; |
|
|
1787 | #endif |
|
|
1788 | } |
|
|
1789 | |
|
|
1790 | ent->score = 7; |
|
|
1791 | |
|
|
1792 | if (flags & EIO_READDIR_DIRS_FIRST) |
|
|
1793 | { |
|
|
1794 | if (ent->type == EIO_DT_UNKNOWN) |
|
|
1795 | { |
|
|
1796 | if (*name == '.') /* leading dots are likely directories, and, in any case, rare */ |
|
|
1797 | ent->score = 1; |
|
|
1798 | else if (!strchr (name, '.')) /* absense of dots indicate likely dirs */ |
|
|
1799 | ent->score = len <= 2 ? 4 - len : len <= 4 ? 4 : len <= 7 ? 5 : 6; /* shorter == more likely dir, but avoid too many classes */ |
|
|
1800 | } |
|
|
1801 | else if (ent->type == EIO_DT_DIR) |
|
|
1802 | ent->score = 0; |
|
|
1803 | } |
|
|
1804 | } |
|
|
1805 | |
|
|
1806 | namesoffs += len; |
1607 | namesoffs += len; |
1807 | ++dentoffs; |
1608 | ++dentoffs; |
1808 | } |
1609 | } |
1809 | |
1610 | |
1810 | if (EIO_CANCELLED (req)) |
1611 | if (EIO_CANCELLED (req)) |
1811 | { |
1612 | { |
1812 | errno = ECANCELED; |
1613 | errno = ECANCELED; |
1813 | break; |
1614 | break; |
1814 | } |
1615 | } |
|
|
1616 | |
|
|
1617 | #ifdef _WIN32 |
|
|
1618 | if (!FindNextFile (dirp, &entp)) |
|
|
1619 | { |
|
|
1620 | FindClose (dirp); |
|
|
1621 | dirp = 0; |
1815 | } |
1622 | } |
|
|
1623 | #endif |
|
|
1624 | } |
1816 | } |
1625 | } |
|
|
1626 | |
|
|
1627 | /*****************************************************************************/ |
|
|
1628 | /* working directory stuff */ |
|
|
1629 | /* various deficiencies in the posix 2008 api force us to */ |
|
|
1630 | /* keep the absolute path in string form at all times */ |
|
|
1631 | /* fuck yeah. */ |
|
|
1632 | |
|
|
1633 | #if !HAVE_AT |
|
|
1634 | |
|
|
1635 | /* a bit like realpath, but usually faster because it doesn'T have to return */ |
|
|
1636 | /* an absolute or canonical path */ |
|
|
1637 | static const char * |
|
|
1638 | wd_expand (struct etp_tmpbuf *tmpbuf, eio_wd wd, const char *path) |
|
|
1639 | { |
|
|
1640 | if (!wd || *path == '/') |
|
|
1641 | return path; |
|
|
1642 | |
|
|
1643 | if (path [0] == '.' && !path [1]) |
|
|
1644 | return wd->str; |
|
|
1645 | |
|
|
1646 | { |
|
|
1647 | int l1 = wd->len; |
|
|
1648 | int l2 = strlen (path); |
|
|
1649 | |
|
|
1650 | char *res = etp_tmpbuf_get (tmpbuf, l1 + l2 + 2); |
|
|
1651 | |
|
|
1652 | memcpy (res, wd->str, l1); |
|
|
1653 | res [l1] = '/'; |
|
|
1654 | memcpy (res + l1 + 1, path, l2 + 1); |
|
|
1655 | |
|
|
1656 | return res; |
|
|
1657 | } |
|
|
1658 | } |
|
|
1659 | |
|
|
1660 | #endif |
|
|
1661 | |
|
|
1662 | static eio_wd |
|
|
1663 | eio__wd_open_sync (struct etp_tmpbuf *tmpbuf, eio_wd wd, const char *path) |
|
|
1664 | { |
|
|
1665 | int fd; |
|
|
1666 | eio_wd res; |
|
|
1667 | int len = eio__realpath (tmpbuf, wd, path); |
|
|
1668 | |
|
|
1669 | if (len < 0) |
|
|
1670 | return EIO_INVALID_WD; |
|
|
1671 | |
|
|
1672 | #if HAVE_AT |
|
|
1673 | fd = openat (WD2FD (wd), path, O_CLOEXEC | O_SEARCH | O_DIRECTORY | O_NONBLOCK); |
|
|
1674 | |
|
|
1675 | if (fd < 0) |
|
|
1676 | return EIO_INVALID_WD; |
|
|
1677 | #endif |
|
|
1678 | |
|
|
1679 | res = malloc (sizeof (*res) + len); /* one extra 0-byte */ |
|
|
1680 | |
|
|
1681 | #if HAVE_AT |
|
|
1682 | res->fd = fd; |
|
|
1683 | #endif |
|
|
1684 | |
|
|
1685 | res->len = len; |
|
|
1686 | memcpy (res->str, tmpbuf->ptr, len); |
|
|
1687 | res->str [len] = 0; |
|
|
1688 | |
|
|
1689 | return res; |
|
|
1690 | } |
|
|
1691 | |
|
|
1692 | eio_wd |
|
|
1693 | eio_wd_open_sync (eio_wd wd, const char *path) |
|
|
1694 | { |
|
|
1695 | struct etp_tmpbuf tmpbuf = { 0 }; |
|
|
1696 | wd = eio__wd_open_sync (&tmpbuf, wd, path); |
|
|
1697 | free (tmpbuf.ptr); |
|
|
1698 | |
|
|
1699 | return wd; |
|
|
1700 | } |
|
|
1701 | |
|
|
1702 | void |
|
|
1703 | eio_wd_close_sync (eio_wd wd) |
|
|
1704 | { |
|
|
1705 | if (wd != EIO_INVALID_WD && wd != EIO_CWD) |
|
|
1706 | { |
|
|
1707 | #if HAVE_AT |
|
|
1708 | eio__close (wd->fd); |
|
|
1709 | #endif |
|
|
1710 | free (wd); |
|
|
1711 | } |
|
|
1712 | } |
|
|
1713 | |
|
|
1714 | #if HAVE_AT |
|
|
1715 | |
|
|
1716 | static int |
|
|
1717 | eio__renameat2 (int olddirfd, const char *oldpath, int newdirfd, const char *newpath, unsigned int flags) |
|
|
1718 | { |
|
|
1719 | #if HAVE_RENAMEAT2 |
|
|
1720 | return syscall (SYS_renameat2, olddirfd, oldpath, newdirfd, newpath, flags); |
|
|
1721 | #else |
|
|
1722 | if (flags) |
|
|
1723 | return EIO_ENOSYS (); |
|
|
1724 | |
|
|
1725 | return renameat (olddirfd, oldpath, newdirfd, newpath); |
|
|
1726 | #endif |
|
|
1727 | } |
|
|
1728 | |
|
|
1729 | /* they forgot these */ |
|
|
1730 | |
|
|
1731 | static int |
|
|
1732 | eio__truncateat (int dirfd, const char *path, off_t length) |
|
|
1733 | { |
|
|
1734 | int fd = openat (dirfd, path, O_WRONLY | O_CLOEXEC | O_NONBLOCK); |
|
|
1735 | int res; |
|
|
1736 | |
|
|
1737 | if (fd < 0) |
|
|
1738 | return fd; |
|
|
1739 | |
|
|
1740 | res = ftruncate (fd, length); |
|
|
1741 | silent_close (fd); |
|
|
1742 | return res; |
|
|
1743 | } |
|
|
1744 | |
|
|
1745 | static int |
|
|
1746 | eio__statvfsat (int dirfd, const char *path, struct statvfs *buf) |
|
|
1747 | { |
|
|
1748 | int fd = openat (dirfd, path, O_SEARCH | O_CLOEXEC | O_NONBLOCK); |
|
|
1749 | int res; |
|
|
1750 | |
|
|
1751 | if (fd < 0) |
|
|
1752 | return fd; |
|
|
1753 | |
|
|
1754 | res = fstatvfs (fd, buf); |
|
|
1755 | silent_close (fd); |
|
|
1756 | return res; |
|
|
1757 | } |
|
|
1758 | |
|
|
1759 | #endif |
1817 | |
1760 | |
1818 | /*****************************************************************************/ |
1761 | /*****************************************************************************/ |
1819 | |
1762 | |
1820 | #define ALLOC(len) \ |
1763 | #define ALLOC(len) \ |
1821 | if (!req->ptr2) \ |
1764 | if (!req->ptr2) \ |
1822 | { \ |
1765 | { \ |
1823 | X_LOCK (wrklock); \ |
1766 | X_LOCK (EIO_POOL->wrklock); \ |
1824 | req->flags |= EIO_FLAG_PTR2_FREE; \ |
1767 | req->flags |= EIO_FLAG_PTR2_FREE; \ |
1825 | X_UNLOCK (wrklock); \ |
1768 | X_UNLOCK (EIO_POOL->wrklock); \ |
1826 | req->ptr2 = malloc (len); \ |
1769 | req->ptr2 = malloc (len); \ |
1827 | if (!req->ptr2) \ |
1770 | if (!req->ptr2) \ |
1828 | { \ |
1771 | { \ |
1829 | errno = ENOMEM; \ |
1772 | errno = ENOMEM; \ |
1830 | req->result = -1; \ |
1773 | req->result = -1; \ |
1831 | break; \ |
1774 | goto alloc_fail; \ |
1832 | } \ |
1775 | } \ |
1833 | } |
1776 | } |
1834 | |
1777 | |
1835 | X_THREAD_PROC (etp_proc) |
1778 | /*****************************************************************************/ |
1836 | { |
|
|
1837 | ETP_REQ *req; |
|
|
1838 | struct timespec ts; |
|
|
1839 | etp_worker *self = (etp_worker *)thr_arg; |
|
|
1840 | int timeout; |
|
|
1841 | |
1779 | |
1842 | /* try to distribute timeouts somewhat evenly */ |
1780 | static void |
1843 | ts.tv_nsec = ((unsigned long)self & 1023UL) * (1000000000UL / 1024UL); |
1781 | eio__slurp (int fd, eio_req *req) |
|
|
1782 | { |
|
|
1783 | req->result = fd; |
1844 | |
1784 | |
1845 | for (;;) |
1785 | if (fd < 0) |
|
|
1786 | return; |
|
|
1787 | |
|
|
1788 | if (req->offs < 0 || !req->size) /* do we need the size? */ |
1846 | { |
1789 | { |
1847 | ts.tv_sec = 0; |
1790 | off_t size = lseek (fd, 0, SEEK_END); |
1848 | |
1791 | |
1849 | X_LOCK (reqlock); |
|
|
1850 | |
|
|
1851 | for (;;) |
|
|
1852 | { |
|
|
1853 | self->req = req = reqq_shift (&req_queue); |
|
|
1854 | |
|
|
1855 | if (req) |
|
|
1856 | break; |
|
|
1857 | |
|
|
1858 | if (ts.tv_sec == 1) /* no request, but timeout detected, let's quit */ |
|
|
1859 | { |
|
|
1860 | X_UNLOCK (reqlock); |
|
|
1861 | X_LOCK (wrklock); |
|
|
1862 | --started; |
|
|
1863 | X_UNLOCK (wrklock); |
|
|
1864 | goto quit; |
|
|
1865 | } |
|
|
1866 | |
|
|
1867 | ++idle; |
|
|
1868 | |
|
|
1869 | if (idle <= max_idle) |
|
|
1870 | /* we are allowed to idle, so do so without any timeout */ |
|
|
1871 | X_COND_WAIT (reqwait, reqlock); |
|
|
1872 | else |
|
|
1873 | { |
|
|
1874 | /* initialise timeout once */ |
|
|
1875 | if (!ts.tv_sec) |
|
|
1876 | ts.tv_sec = time (0) + idle_timeout; |
|
|
1877 | |
|
|
1878 | if (X_COND_TIMEDWAIT (reqwait, reqlock, ts) == ETIMEDOUT) |
|
|
1879 | ts.tv_sec = 1; /* assuming this is not a value computed above.,.. */ |
|
|
1880 | } |
|
|
1881 | |
|
|
1882 | --idle; |
|
|
1883 | } |
|
|
1884 | |
|
|
1885 | --nready; |
|
|
1886 | |
|
|
1887 | X_UNLOCK (reqlock); |
|
|
1888 | |
|
|
1889 | if (req->type < 0) |
1792 | if (req->offs < 0) |
1890 | goto quit; |
1793 | req->offs += size; |
1891 | |
1794 | |
1892 | ETP_EXECUTE (self, req); |
1795 | if (!req->size) |
1893 | |
1796 | req->size = size - req->offs; |
1894 | X_LOCK (reslock); |
|
|
1895 | |
|
|
1896 | ++npending; |
|
|
1897 | |
|
|
1898 | if (!reqq_push (&res_queue, req) && want_poll_cb) |
|
|
1899 | want_poll_cb (); |
|
|
1900 | |
|
|
1901 | self->req = 0; |
|
|
1902 | etp_worker_clear (self); |
|
|
1903 | |
|
|
1904 | X_UNLOCK (reslock); |
|
|
1905 | } |
1797 | } |
1906 | |
1798 | |
1907 | quit: |
1799 | ALLOC (req->size); |
1908 | X_LOCK (wrklock); |
1800 | req->result = pread (fd, req->ptr2, req->size, req->offs); |
1909 | etp_worker_free (self); |
|
|
1910 | X_UNLOCK (wrklock); |
|
|
1911 | |
1801 | |
1912 | return 0; |
1802 | silent_close (fd); |
1913 | } |
|
|
1914 | |
1803 | |
1915 | /*****************************************************************************/ |
1804 | alloc_fail: |
|
|
1805 | ; |
|
|
1806 | } |
1916 | |
1807 | |
1917 | int ecb_cold |
1808 | int ecb_cold |
1918 | eio_init (void (*want_poll)(void), void (*done_poll)(void)) |
1809 | eio_init (void (*want_poll)(void), void (*done_poll)(void)) |
1919 | { |
1810 | { |
1920 | return etp_init (want_poll, done_poll); |
1811 | eio_want_poll_cb = want_poll; |
|
|
1812 | eio_done_poll_cb = done_poll; |
|
|
1813 | |
|
|
1814 | return etp_init (EIO_POOL, 0, 0, 0); |
1921 | } |
1815 | } |
1922 | |
1816 | |
1923 | ecb_inline void |
1817 | ecb_inline void |
1924 | eio_api_destroy (eio_req *req) |
1818 | eio_api_destroy (eio_req *req) |
1925 | { |
1819 | { |
1926 | free (req); |
1820 | free (req); |
1927 | } |
1821 | } |
1928 | |
1822 | |
1929 | #define REQ(rtype) \ |
1823 | #define REQ(rtype) \ |
1930 | eio_req *req; \ |
1824 | eio_req *req; \ |
1931 | \ |
1825 | \ |
1932 | req = (eio_req *)calloc (1, sizeof *req); \ |
1826 | req = (eio_req *)calloc (1, sizeof *req); \ |
1933 | if (!req) \ |
1827 | if (!req) \ |
1934 | return 0; \ |
1828 | return 0; \ |
… | |
… | |
1948 | { \ |
1842 | { \ |
1949 | eio_api_destroy (req); \ |
1843 | eio_api_destroy (req); \ |
1950 | return 0; \ |
1844 | return 0; \ |
1951 | } |
1845 | } |
1952 | |
1846 | |
|
|
1847 | #define SINGLEDOT(ptr) (0[(char *)(ptr)] == '.' && !1[(char *)(ptr)]) |
|
|
1848 | |
1953 | static void |
1849 | static void |
1954 | eio_execute (etp_worker *self, eio_req *req) |
1850 | eio_execute (etp_worker *self, eio_req *req) |
1955 | { |
1851 | { |
|
|
1852 | #if HAVE_AT |
|
|
1853 | int dirfd; |
|
|
1854 | #else |
|
|
1855 | const char *path; |
|
|
1856 | #endif |
|
|
1857 | |
1956 | if (ecb_expect_false (EIO_CANCELLED (req))) |
1858 | if (ecb_expect_false (EIO_CANCELLED (req))) |
1957 | { |
1859 | { |
1958 | req->result = -1; |
1860 | req->result = -1; |
1959 | req->errorno = ECANCELED; |
1861 | req->errorno = ECANCELED; |
1960 | return; |
1862 | return; |
1961 | } |
1863 | } |
1962 | |
1864 | |
|
|
1865 | if (ecb_expect_false (req->wd == EIO_INVALID_WD)) |
|
|
1866 | { |
|
|
1867 | req->result = -1; |
|
|
1868 | req->errorno = ENOENT; |
|
|
1869 | return; |
|
|
1870 | } |
|
|
1871 | |
|
|
1872 | if (req->type >= EIO_OPEN) |
|
|
1873 | { |
|
|
1874 | #if HAVE_AT |
|
|
1875 | dirfd = WD2FD (req->wd); |
|
|
1876 | #else |
|
|
1877 | path = wd_expand (&self->tmpbuf, req->wd, req->ptr1); |
|
|
1878 | #endif |
|
|
1879 | } |
|
|
1880 | |
1963 | switch (req->type) |
1881 | switch (req->type) |
1964 | { |
1882 | { |
|
|
1883 | case EIO_WD_OPEN: req->wd = eio__wd_open_sync (&self->tmpbuf, req->wd, req->ptr1); |
|
|
1884 | req->result = req->wd == EIO_INVALID_WD ? -1 : 0; |
|
|
1885 | break; |
|
|
1886 | case EIO_WD_CLOSE: req->result = 0; |
|
|
1887 | eio_wd_close_sync (req->wd); break; |
|
|
1888 | |
|
|
1889 | case EIO_SEEK: eio__lseek (req); break; |
1965 | case EIO_READ: ALLOC (req->size); |
1890 | case EIO_READ: ALLOC (req->size); |
1966 | req->result = req->offs >= 0 |
1891 | req->result = req->offs >= 0 |
1967 | ? pread (req->int1, req->ptr2, req->size, req->offs) |
1892 | ? pread (req->int1, req->ptr2, req->size, req->offs) |
1968 | : read (req->int1, req->ptr2, req->size); break; |
1893 | : read (req->int1, req->ptr2, req->size); break; |
1969 | case EIO_WRITE: req->result = req->offs >= 0 |
1894 | case EIO_WRITE: req->result = req->offs >= 0 |
1970 | ? pwrite (req->int1, req->ptr2, req->size, req->offs) |
1895 | ? pwrite (req->int1, req->ptr2, req->size, req->offs) |
1971 | : write (req->int1, req->ptr2, req->size); break; |
1896 | : write (req->int1, req->ptr2, req->size); break; |
1972 | |
1897 | |
|
|
1898 | case EIO_FCNTL: req->result = fcntl (req->int1, (int) req->int2, req->ptr2); break; |
|
|
1899 | case EIO_IOCTL: req->result = ioctl (req->int1, (unsigned long)req->int2, req->ptr2); break; |
|
|
1900 | |
1973 | case EIO_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break; |
1901 | case EIO_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break; |
1974 | case EIO_SENDFILE: req->result = eio__sendfile (req->int1, req->int2, req->offs, req->size, self); break; |
1902 | case EIO_SENDFILE: req->result = eio__sendfile (req->int1, req->int2, req->offs, req->size); break; |
|
|
1903 | |
|
|
1904 | #if HAVE_AT |
1975 | |
1905 | |
1976 | case EIO_STAT: ALLOC (sizeof (EIO_STRUCT_STAT)); |
1906 | case EIO_STAT: ALLOC (sizeof (EIO_STRUCT_STAT)); |
1977 | req->result = stat (req->ptr1, (EIO_STRUCT_STAT *)req->ptr2); break; |
1907 | req->result = fstatat (dirfd, req->ptr1, (EIO_STRUCT_STAT *)req->ptr2, 0); break; |
1978 | case EIO_LSTAT: ALLOC (sizeof (EIO_STRUCT_STAT)); |
1908 | case EIO_LSTAT: ALLOC (sizeof (EIO_STRUCT_STAT)); |
|
|
1909 | req->result = fstatat (dirfd, req->ptr1, (EIO_STRUCT_STAT *)req->ptr2, AT_SYMLINK_NOFOLLOW); break; |
|
|
1910 | case EIO_CHOWN: req->result = fchownat (dirfd, req->ptr1, req->int2, req->int3, 0); break; |
|
|
1911 | case EIO_CHMOD: req->result = fchmodat (dirfd, req->ptr1, (mode_t)req->int2, 0); break; |
|
|
1912 | case EIO_TRUNCATE: req->result = eio__truncateat (dirfd, req->ptr1, req->offs); break; |
|
|
1913 | case EIO_OPEN: req->result = openat (dirfd, req->ptr1, req->int1, (mode_t)req->int2); break; |
|
|
1914 | case EIO_SLURP: eio__slurp ( openat (dirfd, req->ptr1, O_RDONLY | O_CLOEXEC), req); break; |
|
|
1915 | |
|
|
1916 | case EIO_UNLINK: req->result = unlinkat (dirfd, req->ptr1, 0); break; |
|
|
1917 | case EIO_RMDIR: /* complications arise because "." cannot be removed, so we might have to expand */ |
|
|
1918 | req->result = req->wd && SINGLEDOT (req->ptr1) |
|
|
1919 | ? rmdir (req->wd->str) |
|
|
1920 | : unlinkat (dirfd, req->ptr1, AT_REMOVEDIR); break; |
|
|
1921 | case EIO_MKDIR: req->result = mkdirat (dirfd, req->ptr1, (mode_t)req->int2); break; |
|
|
1922 | case EIO_RENAME: req->result = eio__renameat2 ( |
|
|
1923 | dirfd, |
|
|
1924 | /* complications arise because "." cannot be renamed, so we might have to expand */ |
|
|
1925 | req->wd && SINGLEDOT (req->ptr1) ? req->wd->str : req->ptr1, |
|
|
1926 | WD2FD ((eio_wd)req->int3), |
|
|
1927 | req->ptr2, |
|
|
1928 | req->int2 |
|
|
1929 | ); |
|
|
1930 | break; |
|
|
1931 | case EIO_LINK: req->result = linkat (dirfd, req->ptr1, WD2FD ((eio_wd)req->int3), req->ptr2, 0); break; |
|
|
1932 | case EIO_SYMLINK: req->result = symlinkat (req->ptr1, dirfd, req->ptr2); break; |
|
|
1933 | case EIO_MKNOD: req->result = mknodat (dirfd, req->ptr1, (mode_t)req->int2, (dev_t)req->offs); break; |
|
|
1934 | case EIO_STATVFS: ALLOC (sizeof (EIO_STRUCT_STATVFS)); |
|
|
1935 | req->result = eio__statvfsat (dirfd, req->ptr1, (EIO_STRUCT_STATVFS *)req->ptr2); break; |
|
|
1936 | case EIO_READLINK: ALLOC (EIO_PATH_MAX); |
|
|
1937 | req->result = readlinkat (dirfd, req->ptr1, req->ptr2, EIO_PATH_MAX); |
|
|
1938 | if (req->result == EIO_PATH_MAX) |
|
|
1939 | { |
|
|
1940 | req->result = -1; |
|
|
1941 | errno = ENAMETOOLONG; |
|
|
1942 | } |
|
|
1943 | break; |
|
|
1944 | case EIO_UTIME: |
|
|
1945 | case EIO_FUTIME: |
|
|
1946 | { |
|
|
1947 | struct timespec ts[2]; |
|
|
1948 | struct timespec *times; |
|
|
1949 | |
|
|
1950 | if (req->nv1 != -1. || req->nv2 != -1.) |
|
|
1951 | { |
|
|
1952 | ts[0].tv_sec = req->nv1; |
|
|
1953 | ts[0].tv_nsec = (req->nv1 - ts[0].tv_sec) * 1e9; |
|
|
1954 | ts[1].tv_sec = req->nv2; |
|
|
1955 | ts[1].tv_nsec = (req->nv2 - ts[1].tv_sec) * 1e9; |
|
|
1956 | |
|
|
1957 | times = ts; |
|
|
1958 | } |
|
|
1959 | else |
|
|
1960 | times = 0; |
|
|
1961 | |
|
|
1962 | req->result = req->type == EIO_FUTIME |
|
|
1963 | ? futimens (req->int1, times) |
|
|
1964 | : utimensat (dirfd, req->ptr1, times, 0); |
|
|
1965 | } |
|
|
1966 | break; |
|
|
1967 | |
|
|
1968 | #else |
|
|
1969 | |
|
|
1970 | case EIO_STAT: ALLOC (sizeof (EIO_STRUCT_STAT)); |
|
|
1971 | req->result = stat (path , (EIO_STRUCT_STAT *)req->ptr2); break; |
|
|
1972 | case EIO_LSTAT: ALLOC (sizeof (EIO_STRUCT_STAT)); |
1979 | req->result = lstat (req->ptr1, (EIO_STRUCT_STAT *)req->ptr2); break; |
1973 | req->result = lstat (path , (EIO_STRUCT_STAT *)req->ptr2); break; |
|
|
1974 | case EIO_CHOWN: req->result = chown (path , req->int2, req->int3); break; |
|
|
1975 | case EIO_CHMOD: req->result = chmod (path , (mode_t)req->int2); break; |
|
|
1976 | case EIO_TRUNCATE: req->result = truncate (path , req->offs); break; |
|
|
1977 | case EIO_OPEN: req->result = open (path , req->int1, (mode_t)req->int2); break; |
|
|
1978 | case EIO_SLURP: eio__slurp ( open (path , O_RDONLY | O_CLOEXEC), req); break; |
|
|
1979 | |
|
|
1980 | case EIO_UNLINK: req->result = unlink (path ); break; |
|
|
1981 | case EIO_RMDIR: req->result = rmdir (path ); break; |
|
|
1982 | case EIO_MKDIR: req->result = mkdir (path , (mode_t)req->int2); break; |
|
|
1983 | case EIO_RENAME: req->result = req->int2 ? EIO_ENOSYS () : rename (path, req->ptr2); break; |
|
|
1984 | case EIO_LINK: req->result = link (path , req->ptr2); break; |
|
|
1985 | case EIO_SYMLINK: req->result = symlink (path , req->ptr2); break; |
|
|
1986 | case EIO_MKNOD: req->result = mknod (path , (mode_t)req->int2, (dev_t)req->offs); break; |
|
|
1987 | case EIO_STATVFS: ALLOC (sizeof (EIO_STRUCT_STATVFS)); |
|
|
1988 | req->result = statvfs (path , (EIO_STRUCT_STATVFS *)req->ptr2); break; |
|
|
1989 | case EIO_READLINK: ALLOC (EIO_PATH_MAX); |
|
|
1990 | req->result = readlink (path, req->ptr2, EIO_PATH_MAX); |
|
|
1991 | if (req->result == EIO_PATH_MAX) |
|
|
1992 | { |
|
|
1993 | req->result = -1; |
|
|
1994 | errno = ENAMETOOLONG; |
|
|
1995 | } |
|
|
1996 | break; |
|
|
1997 | |
|
|
1998 | case EIO_UTIME: |
|
|
1999 | case EIO_FUTIME: |
|
|
2000 | { |
|
|
2001 | struct timeval tv[2]; |
|
|
2002 | struct timeval *times; |
|
|
2003 | |
|
|
2004 | if (req->nv1 != -1. || req->nv2 != -1.) |
|
|
2005 | { |
|
|
2006 | tv[0].tv_sec = req->nv1; |
|
|
2007 | tv[0].tv_usec = (req->nv1 - tv[0].tv_sec) * 1e6; |
|
|
2008 | tv[1].tv_sec = req->nv2; |
|
|
2009 | tv[1].tv_usec = (req->nv2 - tv[1].tv_sec) * 1e6; |
|
|
2010 | |
|
|
2011 | times = tv; |
|
|
2012 | } |
|
|
2013 | else |
|
|
2014 | times = 0; |
|
|
2015 | |
|
|
2016 | req->result = req->type == EIO_FUTIME |
|
|
2017 | ? futimes (req->int1, times) |
|
|
2018 | : utimes (req->ptr1, times); |
|
|
2019 | } |
|
|
2020 | break; |
|
|
2021 | |
|
|
2022 | #endif |
|
|
2023 | |
|
|
2024 | case EIO_REALPATH: if (0 <= (req->result = eio__realpath (&self->tmpbuf, req->wd, req->ptr1))) |
|
|
2025 | { |
|
|
2026 | ALLOC (req->result); |
|
|
2027 | memcpy (req->ptr2, self->tmpbuf.ptr, req->result); |
|
|
2028 | } |
|
|
2029 | break; |
|
|
2030 | |
1980 | case EIO_FSTAT: ALLOC (sizeof (EIO_STRUCT_STAT)); |
2031 | case EIO_FSTAT: ALLOC (sizeof (EIO_STRUCT_STAT)); |
1981 | req->result = fstat (req->int1, (EIO_STRUCT_STAT *)req->ptr2); break; |
2032 | req->result = fstat (req->int1, (EIO_STRUCT_STAT *)req->ptr2); break; |
1982 | |
2033 | |
1983 | case EIO_STATVFS: ALLOC (sizeof (EIO_STRUCT_STATVFS)); |
|
|
1984 | req->result = statvfs (req->ptr1, (EIO_STRUCT_STATVFS *)req->ptr2); break; |
|
|
1985 | case EIO_FSTATVFS: ALLOC (sizeof (EIO_STRUCT_STATVFS)); |
2034 | case EIO_FSTATVFS: ALLOC (sizeof (EIO_STRUCT_STATVFS)); |
1986 | req->result = fstatvfs (req->int1, (EIO_STRUCT_STATVFS *)req->ptr2); break; |
2035 | req->result = fstatvfs (req->int1, (EIO_STRUCT_STATVFS *)req->ptr2); break; |
1987 | |
2036 | |
1988 | case EIO_CHOWN: req->result = chown (req->ptr1, req->int2, req->int3); break; |
|
|
1989 | case EIO_FCHOWN: req->result = fchown (req->int1, req->int2, req->int3); break; |
2037 | case EIO_FCHOWN: req->result = fchown (req->int1, req->int2, req->int3); break; |
1990 | case EIO_CHMOD: req->result = chmod (req->ptr1, (mode_t)req->int2); break; |
|
|
1991 | case EIO_FCHMOD: req->result = fchmod (req->int1, (mode_t)req->int2); break; |
2038 | case EIO_FCHMOD: req->result = fchmod (req->int1, (mode_t)req->int2); break; |
1992 | case EIO_TRUNCATE: req->result = truncate (req->ptr1, req->offs); break; |
|
|
1993 | case EIO_FTRUNCATE: req->result = ftruncate (req->int1, req->offs); break; |
2039 | case EIO_FTRUNCATE: req->result = ftruncate (req->int1, req->offs); break; |
1994 | |
2040 | |
1995 | case EIO_OPEN: req->result = open (req->ptr1, req->int1, (mode_t)req->int2); break; |
|
|
1996 | case EIO_CLOSE: req->result = close (req->int1); break; |
2041 | case EIO_CLOSE: req->result = eio__close (req->int1); break; |
1997 | case EIO_DUP2: req->result = dup2 (req->int1, req->int2); break; |
2042 | case EIO_DUP2: req->result = dup2 (req->int1, req->int2); break; |
1998 | case EIO_UNLINK: req->result = unlink (req->ptr1); break; |
|
|
1999 | case EIO_RMDIR: req->result = rmdir (req->ptr1); break; |
|
|
2000 | case EIO_MKDIR: req->result = mkdir (req->ptr1, (mode_t)req->int2); break; |
|
|
2001 | case EIO_RENAME: req->result = rename (req->ptr1, req->ptr2); break; |
|
|
2002 | case EIO_LINK: req->result = link (req->ptr1, req->ptr2); break; |
|
|
2003 | case EIO_SYMLINK: req->result = symlink (req->ptr1, req->ptr2); break; |
|
|
2004 | case EIO_MKNOD: req->result = mknod (req->ptr1, (mode_t)req->int2, (dev_t)req->offs); break; |
|
|
2005 | |
|
|
2006 | case EIO_REALPATH: eio__realpath (req, self); break; |
|
|
2007 | |
|
|
2008 | case EIO_READLINK: ALLOC (PATH_MAX); |
|
|
2009 | req->result = readlink (req->ptr1, req->ptr2, PATH_MAX); break; |
|
|
2010 | |
|
|
2011 | case EIO_SYNC: req->result = 0; sync (); break; |
2043 | case EIO_SYNC: req->result = 0; sync (); break; |
2012 | case EIO_FSYNC: req->result = fsync (req->int1); break; |
2044 | case EIO_FSYNC: req->result = fsync (req->int1); break; |
2013 | case EIO_FDATASYNC: req->result = fdatasync (req->int1); break; |
2045 | case EIO_FDATASYNC: req->result = fdatasync (req->int1); break; |
|
|
2046 | case EIO_SYNCFS: req->result = eio__syncfs (req->int1); break; |
|
|
2047 | case EIO_SYNC_FILE_RANGE: req->result = eio__sync_file_range (req->int1, req->offs, req->size, req->int2); break; |
2014 | case EIO_MSYNC: req->result = eio__msync (req->ptr2, req->size, req->int1); break; |
2048 | case EIO_MSYNC: req->result = eio__msync (req->ptr2, req->size, req->int1); break; |
2015 | case EIO_MTOUCH: req->result = eio__mtouch (req); break; |
2049 | case EIO_MTOUCH: req->result = eio__mtouch (req); break; |
2016 | case EIO_MLOCK: req->result = eio__mlock (req->ptr2, req->size); break; |
2050 | case EIO_MLOCK: req->result = eio__mlock (req->ptr2, req->size); break; |
2017 | case EIO_MLOCKALL: req->result = eio__mlockall (req->int1); break; |
2051 | case EIO_MLOCKALL: req->result = eio__mlockall (req->int1); break; |
2018 | case EIO_SYNC_FILE_RANGE: req->result = eio__sync_file_range (req->int1, req->offs, req->size, req->int2); break; |
|
|
2019 | case EIO_FALLOCATE: req->result = eio__fallocate (req->int1, req->int2, req->offs, req->size); break; |
2052 | case EIO_FALLOCATE: req->result = eio__fallocate (req->int1, req->int2, req->offs, req->size); break; |
2020 | |
2053 | |
2021 | case EIO_READDIR: eio__scandir (req, self); break; |
2054 | case EIO_READDIR: eio__scandir (req, self); break; |
2022 | |
2055 | |
2023 | case EIO_BUSY: |
2056 | case EIO_BUSY: |
… | |
… | |
2033 | req->result = select (0, 0, 0, 0, &tv); |
2066 | req->result = select (0, 0, 0, 0, &tv); |
2034 | } |
2067 | } |
2035 | #endif |
2068 | #endif |
2036 | break; |
2069 | break; |
2037 | |
2070 | |
2038 | case EIO_UTIME: |
2071 | #if 0 |
2039 | case EIO_FUTIME: |
|
|
2040 | { |
|
|
2041 | struct timeval tv[2]; |
|
|
2042 | struct timeval *times; |
|
|
2043 | |
|
|
2044 | if (req->nv1 != -1. || req->nv2 != -1.) |
|
|
2045 | { |
|
|
2046 | tv[0].tv_sec = req->nv1; |
|
|
2047 | tv[0].tv_usec = (req->nv1 - tv[0].tv_sec) * 1000000.; |
|
|
2048 | tv[1].tv_sec = req->nv2; |
|
|
2049 | tv[1].tv_usec = (req->nv2 - tv[1].tv_sec) * 1000000.; |
|
|
2050 | |
|
|
2051 | times = tv; |
|
|
2052 | } |
|
|
2053 | else |
|
|
2054 | times = 0; |
|
|
2055 | |
|
|
2056 | req->result = req->type == EIO_FUTIME |
|
|
2057 | ? futimes (req->int1, times) |
|
|
2058 | : utimes (req->ptr1, times); |
|
|
2059 | } |
|
|
2060 | break; |
|
|
2061 | |
|
|
2062 | case EIO_GROUP: |
2072 | case EIO_GROUP: |
2063 | abort (); /* handled in eio_request */ |
2073 | abort (); /* handled in eio_request */ |
|
|
2074 | #endif |
2064 | |
2075 | |
2065 | case EIO_NOP: |
2076 | case EIO_NOP: |
2066 | req->result = 0; |
2077 | req->result = 0; |
2067 | break; |
2078 | break; |
2068 | |
2079 | |
2069 | case EIO_CUSTOM: |
2080 | case EIO_CUSTOM: |
2070 | req->feed (req); |
2081 | req->feed (req); |
2071 | break; |
2082 | break; |
2072 | |
2083 | |
2073 | default: |
2084 | default: |
2074 | errno = ENOSYS; |
|
|
2075 | req->result = -1; |
2085 | req->result = EIO_ENOSYS (); |
2076 | break; |
2086 | break; |
2077 | } |
2087 | } |
2078 | |
2088 | |
|
|
2089 | alloc_fail: |
2079 | req->errorno = errno; |
2090 | req->errorno = errno; |
2080 | } |
2091 | } |
2081 | |
2092 | |
2082 | #ifndef EIO_NO_WRAPPERS |
2093 | #ifndef EIO_NO_WRAPPERS |
2083 | |
2094 | |
|
|
2095 | eio_req *eio_wd_open (const char *path, int pri, eio_cb cb, void *data) |
|
|
2096 | { |
|
|
2097 | REQ (EIO_WD_OPEN); PATH; SEND; |
|
|
2098 | } |
|
|
2099 | |
|
|
2100 | eio_req *eio_wd_close (eio_wd wd, int pri, eio_cb cb, void *data) |
|
|
2101 | { |
|
|
2102 | REQ (EIO_WD_CLOSE); req->wd = wd; SEND; |
|
|
2103 | } |
|
|
2104 | |
2084 | eio_req *eio_nop (int pri, eio_cb cb, void *data) |
2105 | eio_req *eio_nop (int pri, eio_cb cb, void *data) |
2085 | { |
2106 | { |
2086 | REQ (EIO_NOP); SEND; |
2107 | REQ (EIO_NOP); SEND; |
2087 | } |
2108 | } |
2088 | |
2109 | |
… | |
… | |
2104 | eio_req *eio_msync (void *addr, size_t length, int flags, int pri, eio_cb cb, void *data) |
2125 | eio_req *eio_msync (void *addr, size_t length, int flags, int pri, eio_cb cb, void *data) |
2105 | { |
2126 | { |
2106 | REQ (EIO_MSYNC); req->ptr2 = addr; req->size = length; req->int1 = flags; SEND; |
2127 | REQ (EIO_MSYNC); req->ptr2 = addr; req->size = length; req->int1 = flags; SEND; |
2107 | } |
2128 | } |
2108 | |
2129 | |
|
|
2130 | eio_req *eio_fdatasync (int fd, int pri, eio_cb cb, void *data) |
|
|
2131 | { |
|
|
2132 | REQ (EIO_FDATASYNC); req->int1 = fd; SEND; |
|
|
2133 | } |
|
|
2134 | |
|
|
2135 | eio_req *eio_syncfs (int fd, int pri, eio_cb cb, void *data) |
|
|
2136 | { |
|
|
2137 | REQ (EIO_SYNCFS); req->int1 = fd; SEND; |
|
|
2138 | } |
|
|
2139 | |
|
|
2140 | eio_req *eio_sync_file_range (int fd, off_t offset, size_t nbytes, unsigned int flags, int pri, eio_cb cb, void *data) |
|
|
2141 | { |
|
|
2142 | REQ (EIO_SYNC_FILE_RANGE); req->int1 = fd; req->offs = offset; req->size = nbytes; req->int2 = flags; SEND; |
|
|
2143 | } |
|
|
2144 | |
2109 | eio_req *eio_mtouch (void *addr, size_t length, int flags, int pri, eio_cb cb, void *data) |
2145 | eio_req *eio_mtouch (void *addr, size_t length, int flags, int pri, eio_cb cb, void *data) |
2110 | { |
2146 | { |
2111 | REQ (EIO_MTOUCH); req->ptr2 = addr; req->size = length; req->int1 = flags; SEND; |
2147 | REQ (EIO_MTOUCH); req->ptr2 = addr; req->size = length; req->int1 = flags; SEND; |
2112 | } |
2148 | } |
2113 | |
2149 | |
… | |
… | |
2119 | eio_req *eio_mlockall (int flags, int pri, eio_cb cb, void *data) |
2155 | eio_req *eio_mlockall (int flags, int pri, eio_cb cb, void *data) |
2120 | { |
2156 | { |
2121 | REQ (EIO_MLOCKALL); req->int1 = flags; SEND; |
2157 | REQ (EIO_MLOCKALL); req->int1 = flags; SEND; |
2122 | } |
2158 | } |
2123 | |
2159 | |
2124 | eio_req *eio_sync_file_range (int fd, off_t offset, size_t nbytes, unsigned int flags, int pri, eio_cb cb, void *data) |
|
|
2125 | { |
|
|
2126 | REQ (EIO_SYNC_FILE_RANGE); req->int1 = fd; req->offs = offset; req->size = nbytes; req->int2 = flags; SEND; |
|
|
2127 | } |
|
|
2128 | |
|
|
2129 | eio_req *eio_fallocate (int fd, int mode, off_t offset, size_t len, int pri, eio_cb cb, void *data) |
2160 | eio_req *eio_fallocate (int fd, int mode, off_t offset, size_t len, int pri, eio_cb cb, void *data) |
2130 | { |
2161 | { |
2131 | REQ (EIO_FALLOCATE); req->int1 = fd; req->int2 = mode; req->offs = offset; req->size = len; SEND; |
2162 | REQ (EIO_FALLOCATE); req->int1 = fd; req->int2 = mode; req->offs = offset; req->size = len; SEND; |
2132 | } |
2163 | } |
2133 | |
2164 | |
2134 | eio_req *eio_fdatasync (int fd, int pri, eio_cb cb, void *data) |
|
|
2135 | { |
|
|
2136 | REQ (EIO_FDATASYNC); req->int1 = fd; SEND; |
|
|
2137 | } |
|
|
2138 | |
|
|
2139 | eio_req *eio_close (int fd, int pri, eio_cb cb, void *data) |
2165 | eio_req *eio_close (int fd, int pri, eio_cb cb, void *data) |
2140 | { |
2166 | { |
2141 | REQ (EIO_CLOSE); req->int1 = fd; SEND; |
2167 | REQ (EIO_CLOSE); req->int1 = fd; SEND; |
2142 | } |
2168 | } |
2143 | |
2169 | |
2144 | eio_req *eio_readahead (int fd, off_t offset, size_t length, int pri, eio_cb cb, void *data) |
2170 | eio_req *eio_readahead (int fd, off_t offset, size_t length, int pri, eio_cb cb, void *data) |
2145 | { |
2171 | { |
2146 | REQ (EIO_READAHEAD); req->int1 = fd; req->offs = offset; req->size = length; SEND; |
2172 | REQ (EIO_READAHEAD); req->int1 = fd; req->offs = offset; req->size = length; SEND; |
2147 | } |
2173 | } |
2148 | |
2174 | |
|
|
2175 | eio_req *eio_seek (int fd, off_t offset, int whence, int pri, eio_cb cb, void *data) |
|
|
2176 | { |
|
|
2177 | REQ (EIO_SEEK); req->int1 = fd; req->offs = offset; req->int2 = whence; SEND; |
|
|
2178 | } |
|
|
2179 | |
2149 | eio_req *eio_read (int fd, void *buf, size_t length, off_t offset, int pri, eio_cb cb, void *data) |
2180 | eio_req *eio_read (int fd, void *buf, size_t length, off_t offset, int pri, eio_cb cb, void *data) |
2150 | { |
2181 | { |
2151 | REQ (EIO_READ); req->int1 = fd; req->offs = offset; req->size = length; req->ptr2 = buf; SEND; |
2182 | REQ (EIO_READ); req->int1 = fd; req->offs = offset; req->size = length; req->ptr2 = buf; SEND; |
2152 | } |
2183 | } |
2153 | |
2184 | |
2154 | eio_req *eio_write (int fd, void *buf, size_t length, off_t offset, int pri, eio_cb cb, void *data) |
2185 | eio_req *eio_write (int fd, void *buf, size_t length, off_t offset, int pri, eio_cb cb, void *data) |
2155 | { |
2186 | { |
2156 | REQ (EIO_WRITE); req->int1 = fd; req->offs = offset; req->size = length; req->ptr2 = buf; SEND; |
2187 | REQ (EIO_WRITE); req->int1 = fd; req->offs = offset; req->size = length; req->ptr2 = buf; SEND; |
|
|
2188 | } |
|
|
2189 | |
|
|
2190 | eio_req *eio_fcntl (int fd, int cmd, void *arg, int pri, eio_cb cb, void *data) |
|
|
2191 | { |
|
|
2192 | REQ (EIO_IOCTL); req->int1 = fd; req->int2 = cmd; req->ptr2 = arg; SEND; |
|
|
2193 | } |
|
|
2194 | |
|
|
2195 | eio_req *eio_ioctl (int fd, unsigned long request, void *buf, int pri, eio_cb cb, void *data) |
|
|
2196 | { |
|
|
2197 | REQ (EIO_IOCTL); req->int1 = fd; req->int2 = request; req->ptr2 = buf; SEND; |
2157 | } |
2198 | } |
2158 | |
2199 | |
2159 | eio_req *eio_fstat (int fd, int pri, eio_cb cb, void *data) |
2200 | eio_req *eio_fstat (int fd, int pri, eio_cb cb, void *data) |
2160 | { |
2201 | { |
2161 | REQ (EIO_FSTAT); req->int1 = fd; SEND; |
2202 | REQ (EIO_FSTAT); req->int1 = fd; SEND; |
… | |
… | |
2306 | eio_req *eio_rename (const char *path, const char *new_path, int pri, eio_cb cb, void *data) |
2347 | eio_req *eio_rename (const char *path, const char *new_path, int pri, eio_cb cb, void *data) |
2307 | { |
2348 | { |
2308 | return eio__2path (EIO_RENAME, path, new_path, pri, cb, data); |
2349 | return eio__2path (EIO_RENAME, path, new_path, pri, cb, data); |
2309 | } |
2350 | } |
2310 | |
2351 | |
|
|
2352 | eio_req *eio_slurp (const char *path, void *buf, size_t length, off_t offset, int pri, eio_cb cb, void *data) |
|
|
2353 | { |
|
|
2354 | REQ (EIO_SLURP); PATH; req->offs = offset; req->size = length; req->ptr2 = buf; SEND; |
|
|
2355 | } |
|
|
2356 | |
2311 | eio_req *eio_custom (void (*execute)(eio_req *), int pri, eio_cb cb, void *data) |
2357 | eio_req *eio_custom (void (*execute)(eio_req *), int pri, eio_cb cb, void *data) |
2312 | { |
2358 | { |
2313 | REQ (EIO_CUSTOM); req->feed = execute; SEND; |
2359 | REQ (EIO_CUSTOM); req->feed = execute; SEND; |
2314 | } |
2360 | } |
2315 | |
2361 | |
… | |
… | |
2349 | void |
2395 | void |
2350 | eio_grp_add (eio_req *grp, eio_req *req) |
2396 | eio_grp_add (eio_req *grp, eio_req *req) |
2351 | { |
2397 | { |
2352 | assert (("cannot add requests to IO::AIO::GRP after the group finished", grp->int1 != 2)); |
2398 | assert (("cannot add requests to IO::AIO::GRP after the group finished", grp->int1 != 2)); |
2353 | |
2399 | |
2354 | grp->flags |= EIO_FLAG_GROUPADD; |
2400 | grp->flags |= ETP_FLAG_GROUPADD; |
2355 | |
2401 | |
2356 | ++grp->size; |
2402 | ++grp->size; |
2357 | req->grp = grp; |
2403 | req->grp = grp; |
2358 | |
2404 | |
2359 | req->grp_prev = 0; |
2405 | req->grp_prev = 0; |
… | |
… | |
2369 | /* misc garbage */ |
2415 | /* misc garbage */ |
2370 | |
2416 | |
2371 | eio_ssize_t |
2417 | eio_ssize_t |
2372 | eio_sendfile_sync (int ofd, int ifd, off_t offset, size_t count) |
2418 | eio_sendfile_sync (int ofd, int ifd, off_t offset, size_t count) |
2373 | { |
2419 | { |
2374 | etp_worker wrk; |
|
|
2375 | eio_ssize_t ret; |
|
|
2376 | |
|
|
2377 | wrk.dbuf = 0; |
|
|
2378 | |
|
|
2379 | ret = eio__sendfile (ofd, ifd, offset, count, &wrk); |
2420 | return eio__sendfile (ofd, ifd, offset, count); |
2380 | |
|
|
2381 | if (wrk.dbuf) |
|
|
2382 | free (wrk.dbuf); |
|
|
2383 | |
|
|
2384 | return ret; |
|
|
2385 | } |
2421 | } |
2386 | |
2422 | |