… | |
… | |
43 | |
43 | |
44 | #include "eio.h" |
44 | #include "eio.h" |
45 | #include "ecb.h" |
45 | #include "ecb.h" |
46 | |
46 | |
47 | #ifdef EIO_STACKSIZE |
47 | #ifdef EIO_STACKSIZE |
48 | # define XTHREAD_STACKSIZE EIO_STACKSIZE |
48 | # define X_STACKSIZE EIO_STACKSIZE |
49 | #endif |
49 | #endif |
50 | #include "xthread.h" |
50 | #include "xthread.h" |
51 | |
51 | |
52 | #include <errno.h> |
52 | #include <errno.h> |
53 | #include <stddef.h> |
53 | #include <stddef.h> |
54 | #include <stdlib.h> |
54 | #include <stdlib.h> |
55 | #include <string.h> |
55 | #include <string.h> |
56 | #include <errno.h> |
56 | #include <errno.h> |
57 | #include <sys/types.h> |
57 | #include <sys/types.h> |
58 | #include <sys/stat.h> |
58 | #include <sys/stat.h> |
59 | #include <sys/statvfs.h> |
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60 | #include <limits.h> |
59 | #include <limits.h> |
61 | #include <fcntl.h> |
60 | #include <fcntl.h> |
62 | #include <assert.h> |
61 | #include <assert.h> |
63 | |
62 | |
64 | /* intptr_t comes from unistd.h, says POSIX/UNIX/tradition */ |
63 | /* intptr_t comes from unistd.h, says POSIX/UNIX/tradition */ |
65 | /* intptr_t only comes form stdint.h, says idiot openbsd coder */ |
64 | /* intptr_t only comes from stdint.h, says idiot openbsd coder */ |
66 | #if HAVE_STDINT_H |
65 | #if HAVE_STDINT_H |
67 | # include <stdint.h> |
66 | # include <stdint.h> |
68 | #endif |
67 | #endif |
69 | |
68 | |
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69 | #ifndef ECANCELED |
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70 | # define ECANCELED EDOM |
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71 | #endif |
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72 | #ifndef ELOOP |
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73 | # define ELOOP EDOM |
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74 | #endif |
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75 | |
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76 | #if !defined(ENOTSOCK) && defined(WSAENOTSOCK) |
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77 | # define ENOTSOCK WSAENOTSOCK |
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78 | #endif |
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79 | |
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80 | static void eio_destroy (eio_req *req); |
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81 | |
70 | #ifndef EIO_FINISH |
82 | #ifndef EIO_FINISH |
71 | # define EIO_FINISH(req) ((req)->finish) && !EIO_CANCELLED (req) ? (req)->finish (req) : 0 |
83 | # define EIO_FINISH(req) ((req)->finish) && !EIO_CANCELLED (req) ? (req)->finish (req) : 0 |
72 | #endif |
84 | #endif |
73 | |
85 | |
74 | #ifndef EIO_DESTROY |
86 | #ifndef EIO_DESTROY |
… | |
… | |
77 | |
89 | |
78 | #ifndef EIO_FEED |
90 | #ifndef EIO_FEED |
79 | # define EIO_FEED(req) do { if ((req)->feed ) (req)->feed (req); } while (0) |
91 | # define EIO_FEED(req) do { if ((req)->feed ) (req)->feed (req); } while (0) |
80 | #endif |
92 | #endif |
81 | |
93 | |
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94 | #ifndef EIO_FD_TO_WIN32_HANDLE |
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95 | # define EIO_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd) |
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96 | #endif |
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97 | #ifndef EIO_WIN32_HANDLE_TO_FD |
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98 | # define EIO_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (handle, 0) |
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99 | #endif |
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100 | |
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101 | #define EIO_ERRNO(errval,retval) ((errno = errval), retval) |
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102 | |
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103 | #define EIO_ENOSYS() EIO_ERRNO (ENOSYS, -1) |
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104 | |
82 | #ifdef _WIN32 |
105 | #ifdef _WIN32 |
83 | |
106 | |
84 | /*doh*/ |
107 | #undef PAGESIZE |
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108 | #define PAGESIZE 4096 /* GetSystemInfo? */ |
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109 | |
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110 | /* TODO: look at how perl does stat (non-sloppy), unlink (ro-files), utime, link */ |
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111 | |
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112 | #ifdef EIO_STRUCT_STATI64 |
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113 | /* look at perl's non-sloppy stat */ |
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114 | #define stat(path,buf) _stati64 (path,buf) |
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115 | #define fstat(fd,buf) _fstati64 (fd,buf) |
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116 | #endif |
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117 | #define lstat(path,buf) stat (path,buf) |
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118 | #define fsync(fd) (FlushFileBuffers ((HANDLE)EIO_FD_TO_WIN32_HANDLE (fd)) ? 0 : EIO_ERRNO (EBADF, -1)) |
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119 | #define mkdir(path,mode) _mkdir (path) |
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120 | #define link(old,neu) (CreateHardLink (neu, old, 0) ? 0 : EIO_ERRNO (ENOENT, -1)) |
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121 | |
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122 | #define chmod(path,mode) _chmod (path, mode) |
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123 | #define dup(fd) _dup (fd) |
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124 | #define dup2(fd1,fd2) _dup2 (fd1, fd2) |
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125 | |
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126 | #define fchmod(fd,mode) EIO_ENOSYS () |
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127 | #define chown(path,uid,gid) EIO_ENOSYS () |
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128 | #define fchown(fd,uid,gid) EIO_ENOSYS () |
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129 | #define truncate(path,offs) EIO_ENOSYS () /* far-miss: SetEndOfFile */ |
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130 | #define ftruncate(fd,offs) EIO_ENOSYS () /* near-miss: SetEndOfFile */ |
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131 | #define mknod(path,mode,dev) EIO_ENOSYS () |
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132 | #define sync() EIO_ENOSYS () |
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133 | #define readlink(path,buf,s) EIO_ENOSYS () |
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134 | #define statvfs(path,buf) EIO_ENOSYS () |
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135 | #define fstatvfs(fd,buf) EIO_ENOSYS () |
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136 | |
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137 | /* rename() uses MoveFile, which fails to overwrite */ |
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138 | #define rename(old,neu) eio__rename (old, neu) |
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139 | |
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140 | static int |
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141 | eio__rename (const char *old, const char *neu) |
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142 | { |
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143 | if (MoveFileEx (old, neu, MOVEFILE_REPLACE_EXISTING)) |
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144 | return 0; |
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145 | |
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146 | /* should steal _dosmaperr */ |
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147 | switch (GetLastError ()) |
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148 | { |
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149 | case ERROR_FILE_NOT_FOUND: |
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150 | case ERROR_PATH_NOT_FOUND: |
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151 | case ERROR_INVALID_DRIVE: |
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152 | case ERROR_NO_MORE_FILES: |
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153 | case ERROR_BAD_NETPATH: |
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154 | case ERROR_BAD_NET_NAME: |
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155 | case ERROR_BAD_PATHNAME: |
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156 | case ERROR_FILENAME_EXCED_RANGE: |
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157 | errno = ENOENT; |
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158 | break; |
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159 | |
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160 | default: |
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161 | errno = EACCES; |
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162 | break; |
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163 | } |
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164 | |
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165 | return -1; |
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166 | } |
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167 | |
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168 | /* we could even stat and see if it exists */ |
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169 | static int |
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170 | symlink (const char *old, const char *neu) |
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171 | { |
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172 | #if WINVER >= 0x0600 |
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173 | if (CreateSymbolicLink (neu, old, 1)) |
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174 | return 0; |
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175 | |
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176 | if (CreateSymbolicLink (neu, old, 0)) |
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177 | return 0; |
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178 | #endif |
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179 | |
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180 | return EIO_ERRNO (ENOENT, -1); |
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181 | } |
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182 | |
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183 | /* POSIX API only */ |
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184 | #define CreateHardLink(neu,old,flags) 0 |
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185 | #define CreateSymbolicLink(neu,old,flags) 0 |
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186 | |
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187 | struct statvfs |
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188 | { |
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189 | int dummy; |
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190 | }; |
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191 | |
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192 | #define DT_DIR EIO_DT_DIR |
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193 | #define DT_REG EIO_DT_REG |
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194 | #define D_NAME(entp) entp.cFileName |
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195 | #define D_TYPE(entp) (entp.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY ? DT_DIR : DT_REG) |
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196 | |
85 | #else |
197 | #else |
86 | |
198 | |
87 | # include <sys/time.h> |
199 | #include <sys/time.h> |
88 | # include <sys/select.h> |
200 | #include <sys/select.h> |
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201 | #include <sys/statvfs.h> |
89 | # include <unistd.h> |
202 | #include <unistd.h> |
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203 | #include <signal.h> |
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204 | #include <dirent.h> |
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205 | |
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206 | #if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES |
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207 | #include <sys/mman.h> |
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208 | #endif |
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209 | |
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210 | #define D_NAME(entp) entp->d_name |
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211 | |
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212 | /* POSIX_SOURCE is useless on bsd's, and XOPEN_SOURCE is unreliable there, too */ |
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213 | #if __FreeBSD__ || defined __NetBSD__ || defined __OpenBSD__ |
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214 | #define _DIRENT_HAVE_D_TYPE /* sigh */ |
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215 | #define D_INO(de) (de)->d_fileno |
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216 | #define D_NAMLEN(de) (de)->d_namlen |
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217 | #elif __linux || defined d_ino || _XOPEN_SOURCE >= 600 |
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218 | #define D_INO(de) (de)->d_ino |
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219 | #endif |
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220 | |
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221 | #ifdef _D_EXACT_NAMLEN |
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222 | #undef D_NAMLEN |
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223 | #define D_NAMLEN(de) _D_EXACT_NAMLEN (de) |
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224 | #endif |
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225 | |
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226 | #ifdef _DIRENT_HAVE_D_TYPE |
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227 | #define D_TYPE(de) (de)->d_type |
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228 | #endif |
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229 | |
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230 | #ifndef EIO_STRUCT_DIRENT |
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231 | #define EIO_STRUCT_DIRENT struct dirent |
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232 | #endif |
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233 | |
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234 | #endif |
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235 | |
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236 | #if HAVE_UTIMES |
90 | # include <utime.h> |
237 | # include <utime.h> |
91 | # include <signal.h> |
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92 | # include <dirent.h> |
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93 | |
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94 | #if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES |
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95 | # include <sys/mman.h> |
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96 | #endif |
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97 | |
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98 | /* POSIX_SOURCE is useless on bsd's, and XOPEN_SOURCE is unreliable there, too */ |
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99 | # if __FreeBSD__ || defined __NetBSD__ || defined __OpenBSD__ |
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100 | # define _DIRENT_HAVE_D_TYPE /* sigh */ |
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101 | # define D_INO(de) (de)->d_fileno |
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102 | # define D_NAMLEN(de) (de)->d_namlen |
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103 | # elif __linux || defined d_ino || _XOPEN_SOURCE >= 600 |
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104 | # define D_INO(de) (de)->d_ino |
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105 | # endif |
238 | #endif |
106 | |
239 | |
107 | #ifdef _D_EXACT_NAMLEN |
240 | #if HAVE_SYS_SYSCALL_H |
108 | # undef D_NAMLEN |
241 | # include <sys/syscall.h> |
109 | # define D_NAMLEN(de) _D_EXACT_NAMLEN (de) |
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110 | #endif |
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111 | |
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112 | # ifdef _DIRENT_HAVE_D_TYPE |
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113 | # define D_TYPE(de) (de)->d_type |
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114 | # endif |
242 | #endif |
115 | |
243 | |
116 | # ifndef EIO_STRUCT_DIRENT |
244 | #if HAVE_SYS_PRCTL_H |
117 | # define EIO_STRUCT_DIRENT struct dirent |
245 | # include <sys/prctl.h> |
118 | # endif |
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119 | |
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120 | #endif |
246 | #endif |
121 | |
247 | |
122 | #if HAVE_SENDFILE |
248 | #if HAVE_SENDFILE |
123 | # if __linux |
249 | # if __linux |
124 | # include <sys/sendfile.h> |
250 | # include <sys/sendfile.h> |
… | |
… | |
139 | #endif |
265 | #endif |
140 | #ifndef D_INO |
266 | #ifndef D_INO |
141 | # define D_INO(de) 0 |
267 | # define D_INO(de) 0 |
142 | #endif |
268 | #endif |
143 | #ifndef D_NAMLEN |
269 | #ifndef D_NAMLEN |
144 | # define D_NAMLEN(de) strlen ((de)->d_name) |
270 | # define D_NAMLEN(entp) strlen (D_NAME (entp)) |
145 | #endif |
271 | #endif |
146 | |
272 | |
147 | /* used for struct dirent, AIX doesn't provide it */ |
273 | /* used for struct dirent, AIX doesn't provide it */ |
148 | #ifndef NAME_MAX |
274 | #ifndef NAME_MAX |
149 | # define NAME_MAX 4096 |
275 | # define NAME_MAX 4096 |
… | |
… | |
156 | |
282 | |
157 | /* buffer size for various temporary buffers */ |
283 | /* buffer size for various temporary buffers */ |
158 | #define EIO_BUFSIZE 65536 |
284 | #define EIO_BUFSIZE 65536 |
159 | |
285 | |
160 | #define dBUF \ |
286 | #define dBUF \ |
161 | char *eio_buf; \ |
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162 | ETP_WORKER_LOCK (self); \ |
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163 | self->dbuf = eio_buf = malloc (EIO_BUFSIZE); \ |
287 | char *eio_buf = malloc (EIO_BUFSIZE); \ |
164 | ETP_WORKER_UNLOCK (self); \ |
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165 | errno = ENOMEM; \ |
288 | errno = ENOMEM; \ |
166 | if (!eio_buf) \ |
289 | if (!eio_buf) \ |
167 | return -1; |
290 | return -1 |
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291 | |
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292 | #define FUBd \ |
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293 | free (eio_buf) |
168 | |
294 | |
169 | #define EIO_TICKS ((1000000 + 1023) >> 10) |
295 | #define EIO_TICKS ((1000000 + 1023) >> 10) |
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296 | |
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297 | /*****************************************************************************/ |
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298 | |
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299 | struct tmpbuf |
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300 | { |
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301 | void *ptr; |
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302 | int len; |
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303 | }; |
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304 | |
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305 | static void * |
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306 | tmpbuf_get (struct tmpbuf *buf, int len) |
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307 | { |
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308 | if (buf->len < len) |
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309 | { |
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310 | free (buf->ptr); |
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311 | buf->ptr = malloc (buf->len = len); |
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312 | } |
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313 | |
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314 | return buf->ptr; |
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315 | } |
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316 | |
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317 | struct tmpbuf; |
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318 | |
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319 | #if _POSIX_VERSION >= 200809L |
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320 | #define HAVE_AT 1 |
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321 | #define WD2FD(wd) ((wd) ? (wd)->fd : AT_FDCWD) |
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322 | #ifndef O_SEARCH |
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323 | #define O_SEARCH O_RDONLY |
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324 | #endif |
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325 | #else |
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326 | #define HAVE_AT 0 |
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327 | static const char *wd_expand (struct tmpbuf *tmpbuf, eio_wd wd, const char *path); |
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328 | #endif |
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329 | |
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330 | struct eio_pwd |
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331 | { |
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332 | #if HAVE_AT |
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333 | int fd; |
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334 | #endif |
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335 | int len; |
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336 | char str[1]; /* actually, a 0-terminated canonical path */ |
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337 | }; |
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338 | |
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339 | /*****************************************************************************/ |
170 | |
340 | |
171 | #define ETP_PRI_MIN EIO_PRI_MIN |
341 | #define ETP_PRI_MIN EIO_PRI_MIN |
172 | #define ETP_PRI_MAX EIO_PRI_MAX |
342 | #define ETP_PRI_MAX EIO_PRI_MAX |
173 | |
343 | |
174 | struct etp_worker; |
344 | struct etp_worker; |
… | |
… | |
178 | static int eio_finish (eio_req *req); |
348 | static int eio_finish (eio_req *req); |
179 | #define ETP_FINISH(req) eio_finish (req) |
349 | #define ETP_FINISH(req) eio_finish (req) |
180 | static void eio_execute (struct etp_worker *self, eio_req *req); |
350 | static void eio_execute (struct etp_worker *self, eio_req *req); |
181 | #define ETP_EXECUTE(wrk,req) eio_execute (wrk,req) |
351 | #define ETP_EXECUTE(wrk,req) eio_execute (wrk,req) |
182 | |
352 | |
183 | #define ETP_WORKER_CLEAR(req) \ |
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184 | if (wrk->dbuf) \ |
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185 | { \ |
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186 | free (wrk->dbuf); \ |
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187 | wrk->dbuf = 0; \ |
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188 | } \ |
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189 | \ |
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190 | if (wrk->dirp) \ |
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191 | { \ |
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192 | closedir (wrk->dirp); \ |
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193 | wrk->dirp = 0; \ |
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194 | } |
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195 | |
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196 | #define ETP_WORKER_COMMON \ |
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197 | void *dbuf; \ |
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198 | DIR *dirp; |
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199 | |
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200 | /*****************************************************************************/ |
353 | /*****************************************************************************/ |
201 | |
354 | |
202 | #define ETP_NUM_PRI (ETP_PRI_MAX - ETP_PRI_MIN + 1) |
355 | #define ETP_NUM_PRI (ETP_PRI_MAX - ETP_PRI_MIN + 1) |
203 | |
356 | |
204 | /* calculate time difference in ~1/EIO_TICKS of a second */ |
357 | /* calculate time difference in ~1/EIO_TICKS of a second */ |
… | |
… | |
215 | static void (*done_poll_cb) (void); |
368 | static void (*done_poll_cb) (void); |
216 | |
369 | |
217 | static unsigned int max_poll_time; /* reslock */ |
370 | static unsigned int max_poll_time; /* reslock */ |
218 | static unsigned int max_poll_reqs; /* reslock */ |
371 | static unsigned int max_poll_reqs; /* reslock */ |
219 | |
372 | |
220 | static volatile unsigned int nreqs; /* reqlock */ |
373 | static unsigned int nreqs; /* reqlock */ |
221 | static volatile unsigned int nready; /* reqlock */ |
374 | static unsigned int nready; /* reqlock */ |
222 | static volatile unsigned int npending; /* reqlock */ |
375 | static unsigned int npending; /* reqlock */ |
223 | static volatile unsigned int max_idle = 4; /* maximum number of threads that can idle indefinitely */ |
376 | static unsigned int max_idle = 4; /* maximum number of threads that can idle indefinitely */ |
224 | static volatile unsigned int idle_timeout = 10; /* number of seconds after which an idle threads exit */ |
377 | static unsigned int idle_timeout = 10; /* number of seconds after which an idle threads exit */ |
225 | |
378 | |
226 | static xmutex_t wrklock; |
379 | static xmutex_t wrklock; |
227 | static xmutex_t reslock; |
380 | static xmutex_t reslock; |
228 | static xmutex_t reqlock; |
381 | static xmutex_t reqlock; |
229 | static xcond_t reqwait; |
382 | static xcond_t reqwait; |
… | |
… | |
232 | /* |
385 | /* |
233 | * make our pread/pwrite emulation safe against themselves, but not against |
386 | * make our pread/pwrite emulation safe against themselves, but not against |
234 | * normal read/write by using a mutex. slows down execution a lot, |
387 | * normal read/write by using a mutex. slows down execution a lot, |
235 | * but that's your problem, not mine. |
388 | * but that's your problem, not mine. |
236 | */ |
389 | */ |
237 | static xmutex_t preadwritelock = X_MUTEX_INIT; |
390 | static xmutex_t preadwritelock; |
238 | #endif |
391 | #endif |
239 | |
392 | |
240 | typedef struct etp_worker |
393 | typedef struct etp_worker |
241 | { |
394 | { |
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395 | struct tmpbuf tmpbuf; |
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396 | |
242 | /* locked by wrklock */ |
397 | /* locked by wrklock */ |
243 | struct etp_worker *prev, *next; |
398 | struct etp_worker *prev, *next; |
244 | |
399 | |
245 | xthread_t tid; |
400 | xthread_t tid; |
246 | |
401 | |
247 | /* locked by reslock, reqlock or wrklock */ |
402 | #ifdef ETP_WORKER_COMMON |
248 | ETP_REQ *req; /* currently processed request */ |
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249 | |
|
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250 | ETP_WORKER_COMMON |
403 | ETP_WORKER_COMMON |
|
|
404 | #endif |
251 | } etp_worker; |
405 | } etp_worker; |
252 | |
406 | |
253 | static etp_worker wrk_first = { &wrk_first, &wrk_first, 0 }; /* NOT etp */ |
407 | static etp_worker wrk_first; /* NOT etp */ |
254 | |
408 | |
255 | #define ETP_WORKER_LOCK(wrk) X_LOCK (wrklock) |
409 | #define ETP_WORKER_LOCK(wrk) X_LOCK (wrklock) |
256 | #define ETP_WORKER_UNLOCK(wrk) X_UNLOCK (wrklock) |
410 | #define ETP_WORKER_UNLOCK(wrk) X_UNLOCK (wrklock) |
257 | |
411 | |
258 | /* worker threads management */ |
412 | /* worker threads management */ |
259 | |
413 | |
260 | static void ecb_cold |
414 | static void |
261 | etp_worker_clear (etp_worker *wrk) |
415 | etp_worker_clear (etp_worker *wrk) |
262 | { |
416 | { |
263 | ETP_WORKER_CLEAR (wrk); |
|
|
264 | } |
417 | } |
265 | |
418 | |
266 | static void ecb_cold |
419 | static void ecb_cold |
267 | etp_worker_free (etp_worker *wrk) |
420 | etp_worker_free (etp_worker *wrk) |
268 | { |
421 | { |
|
|
422 | free (wrk->tmpbuf.ptr); |
|
|
423 | |
269 | wrk->next->prev = wrk->prev; |
424 | wrk->next->prev = wrk->prev; |
270 | wrk->prev->next = wrk->next; |
425 | wrk->prev->next = wrk->next; |
271 | |
426 | |
272 | free (wrk); |
427 | free (wrk); |
273 | } |
428 | } |
… | |
… | |
329 | } etp_reqq; |
484 | } etp_reqq; |
330 | |
485 | |
331 | static etp_reqq req_queue; |
486 | static etp_reqq req_queue; |
332 | static etp_reqq res_queue; |
487 | static etp_reqq res_queue; |
333 | |
488 | |
|
|
489 | static void ecb_noinline ecb_cold |
|
|
490 | reqq_init (etp_reqq *q) |
|
|
491 | { |
|
|
492 | int pri; |
|
|
493 | |
|
|
494 | for (pri = 0; pri < ETP_NUM_PRI; ++pri) |
|
|
495 | q->qs[pri] = q->qe[pri] = 0; |
|
|
496 | |
|
|
497 | q->size = 0; |
|
|
498 | } |
|
|
499 | |
334 | static int ecb_noinline |
500 | static int ecb_noinline |
335 | reqq_push (etp_reqq *q, ETP_REQ *req) |
501 | reqq_push (etp_reqq *q, ETP_REQ *req) |
336 | { |
502 | { |
337 | int pri = req->pri; |
503 | int pri = req->pri; |
338 | req->next = 0; |
504 | req->next = 0; |
… | |
… | |
372 | } |
538 | } |
373 | |
539 | |
374 | abort (); |
540 | abort (); |
375 | } |
541 | } |
376 | |
542 | |
377 | static void ecb_cold |
543 | static int ecb_cold |
378 | etp_thread_init (void) |
544 | etp_init (void (*want_poll)(void), void (*done_poll)(void)) |
379 | { |
545 | { |
380 | X_MUTEX_CREATE (wrklock); |
546 | X_MUTEX_CREATE (wrklock); |
381 | X_MUTEX_CREATE (reslock); |
547 | X_MUTEX_CREATE (reslock); |
382 | X_MUTEX_CREATE (reqlock); |
548 | X_MUTEX_CREATE (reqlock); |
383 | X_COND_CREATE (reqwait); |
549 | X_COND_CREATE (reqwait); |
384 | } |
|
|
385 | |
550 | |
386 | static void ecb_cold |
551 | reqq_init (&req_queue); |
387 | etp_atfork_prepare (void) |
552 | reqq_init (&res_queue); |
388 | { |
|
|
389 | X_LOCK (wrklock); |
|
|
390 | X_LOCK (reqlock); |
|
|
391 | X_LOCK (reslock); |
|
|
392 | #if !HAVE_PREADWRITE |
|
|
393 | X_LOCK (preadwritelock); |
|
|
394 | #endif |
|
|
395 | } |
|
|
396 | |
553 | |
397 | static void ecb_cold |
554 | wrk_first.next = |
398 | etp_atfork_parent (void) |
555 | wrk_first.prev = &wrk_first; |
399 | { |
|
|
400 | #if !HAVE_PREADWRITE |
|
|
401 | X_UNLOCK (preadwritelock); |
|
|
402 | #endif |
|
|
403 | X_UNLOCK (reslock); |
|
|
404 | X_UNLOCK (reqlock); |
|
|
405 | X_UNLOCK (wrklock); |
|
|
406 | } |
|
|
407 | |
|
|
408 | static void ecb_cold |
|
|
409 | etp_atfork_child (void) |
|
|
410 | { |
|
|
411 | ETP_REQ *prv; |
|
|
412 | |
|
|
413 | while ((prv = reqq_shift (&req_queue))) |
|
|
414 | ETP_DESTROY (prv); |
|
|
415 | |
|
|
416 | while ((prv = reqq_shift (&res_queue))) |
|
|
417 | ETP_DESTROY (prv); |
|
|
418 | |
|
|
419 | while (wrk_first.next != &wrk_first) |
|
|
420 | { |
|
|
421 | etp_worker *wrk = wrk_first.next; |
|
|
422 | |
|
|
423 | if (wrk->req) |
|
|
424 | ETP_DESTROY (wrk->req); |
|
|
425 | |
|
|
426 | etp_worker_clear (wrk); |
|
|
427 | etp_worker_free (wrk); |
|
|
428 | } |
|
|
429 | |
556 | |
430 | started = 0; |
557 | started = 0; |
431 | idle = 0; |
558 | idle = 0; |
432 | nreqs = 0; |
559 | nreqs = 0; |
433 | nready = 0; |
560 | nready = 0; |
434 | npending = 0; |
561 | npending = 0; |
435 | |
|
|
436 | etp_thread_init (); |
|
|
437 | } |
|
|
438 | |
|
|
439 | static void ecb_cold |
|
|
440 | etp_once_init (void) |
|
|
441 | { |
|
|
442 | etp_thread_init (); |
|
|
443 | X_THREAD_ATFORK (etp_atfork_prepare, etp_atfork_parent, etp_atfork_child); |
|
|
444 | } |
|
|
445 | |
|
|
446 | static int ecb_cold |
|
|
447 | etp_init (void (*want_poll)(void), void (*done_poll)(void)) |
|
|
448 | { |
|
|
449 | static pthread_once_t doinit = PTHREAD_ONCE_INIT; |
|
|
450 | |
|
|
451 | pthread_once (&doinit, etp_once_init); |
|
|
452 | |
562 | |
453 | want_poll_cb = want_poll; |
563 | want_poll_cb = want_poll; |
454 | done_poll_cb = done_poll; |
564 | done_poll_cb = done_poll; |
455 | |
565 | |
456 | return 0; |
566 | return 0; |
… | |
… | |
496 | } |
606 | } |
497 | |
607 | |
498 | static void ecb_cold |
608 | static void ecb_cold |
499 | etp_end_thread (void) |
609 | etp_end_thread (void) |
500 | { |
610 | { |
501 | eio_req *req = calloc (1, sizeof (eio_req)); |
611 | eio_req *req = calloc (1, sizeof (eio_req)); /* will be freed by worker */ |
502 | |
612 | |
503 | req->type = -1; |
613 | req->type = -1; |
504 | req->pri = ETP_PRI_MAX - ETP_PRI_MIN; |
614 | req->pri = ETP_PRI_MAX - ETP_PRI_MIN; |
505 | |
615 | |
506 | X_LOCK (reqlock); |
616 | X_LOCK (reqlock); |
… | |
… | |
583 | } |
693 | } |
584 | |
694 | |
585 | static void |
695 | static void |
586 | etp_cancel (ETP_REQ *req) |
696 | etp_cancel (ETP_REQ *req) |
587 | { |
697 | { |
588 | X_LOCK (wrklock); |
698 | req->cancelled = 1; |
589 | req->flags |= EIO_FLAG_CANCELLED; |
|
|
590 | X_UNLOCK (wrklock); |
|
|
591 | |
699 | |
592 | eio_grp_cancel (req); |
700 | eio_grp_cancel (req); |
593 | } |
701 | } |
594 | |
702 | |
595 | static void |
703 | static void |
… | |
… | |
711 | return eio_finish (grp); |
819 | return eio_finish (grp); |
712 | else |
820 | else |
713 | return 0; |
821 | return 0; |
714 | } |
822 | } |
715 | |
823 | |
716 | void |
824 | static void |
717 | eio_destroy (eio_req *req) |
825 | eio_destroy (eio_req *req) |
718 | { |
826 | { |
719 | if ((req)->flags & EIO_FLAG_PTR1_FREE) free (req->ptr1); |
827 | if ((req)->flags & EIO_FLAG_PTR1_FREE) free (req->ptr1); |
720 | if ((req)->flags & EIO_FLAG_PTR2_FREE) free (req->ptr2); |
828 | if ((req)->flags & EIO_FLAG_PTR2_FREE) free (req->ptr2); |
721 | |
829 | |
… | |
… | |
739 | if (grp->grp_first == req) |
847 | if (grp->grp_first == req) |
740 | grp->grp_first = req->grp_next; |
848 | grp->grp_first = req->grp_next; |
741 | |
849 | |
742 | res2 = grp_dec (grp); |
850 | res2 = grp_dec (grp); |
743 | |
851 | |
744 | if (!res && res2) |
852 | if (!res) |
745 | res = res2; |
853 | res = res2; |
746 | } |
854 | } |
747 | |
855 | |
748 | eio_destroy (req); |
856 | eio_destroy (req); |
749 | |
857 | |
… | |
… | |
841 | # undef pread |
949 | # undef pread |
842 | # undef pwrite |
950 | # undef pwrite |
843 | # define pread eio__pread |
951 | # define pread eio__pread |
844 | # define pwrite eio__pwrite |
952 | # define pwrite eio__pwrite |
845 | |
953 | |
846 | static ssize_t |
954 | static eio_ssize_t |
847 | eio__pread (int fd, void *buf, size_t count, off_t offset) |
955 | eio__pread (int fd, void *buf, size_t count, off_t offset) |
848 | { |
956 | { |
849 | ssize_t res; |
957 | eio_ssize_t res; |
850 | off_t ooffset; |
958 | off_t ooffset; |
851 | |
959 | |
852 | X_LOCK (preadwritelock); |
960 | X_LOCK (preadwritelock); |
853 | ooffset = lseek (fd, 0, SEEK_CUR); |
961 | ooffset = lseek (fd, 0, SEEK_CUR); |
854 | lseek (fd, offset, SEEK_SET); |
962 | lseek (fd, offset, SEEK_SET); |
… | |
… | |
857 | X_UNLOCK (preadwritelock); |
965 | X_UNLOCK (preadwritelock); |
858 | |
966 | |
859 | return res; |
967 | return res; |
860 | } |
968 | } |
861 | |
969 | |
862 | static ssize_t |
970 | static eio_ssize_t |
863 | eio__pwrite (int fd, void *buf, size_t count, off_t offset) |
971 | eio__pwrite (int fd, void *buf, size_t count, off_t offset) |
864 | { |
972 | { |
865 | ssize_t res; |
973 | eio_ssize_t res; |
866 | off_t ooffset; |
974 | off_t ooffset; |
867 | |
975 | |
868 | X_LOCK (preadwritelock); |
976 | X_LOCK (preadwritelock); |
869 | ooffset = lseek (fd, 0, SEEK_CUR); |
977 | ooffset = lseek (fd, 0, SEEK_CUR); |
870 | lseek (fd, offset, SEEK_SET); |
978 | lseek (fd, offset, SEEK_SET); |
… | |
… | |
915 | |
1023 | |
916 | #if !HAVE_FDATASYNC |
1024 | #if !HAVE_FDATASYNC |
917 | # undef fdatasync |
1025 | # undef fdatasync |
918 | # define fdatasync(fd) fsync (fd) |
1026 | # define fdatasync(fd) fsync (fd) |
919 | #endif |
1027 | #endif |
|
|
1028 | |
|
|
1029 | static int |
|
|
1030 | eio__syncfs (int fd) |
|
|
1031 | { |
|
|
1032 | int res; |
|
|
1033 | |
|
|
1034 | #if HAVE_SYS_SYNCFS |
|
|
1035 | res = (int)syscall (__NR_syncfs, (int)(fd)); |
|
|
1036 | #else |
|
|
1037 | res = -1; |
|
|
1038 | errno = ENOSYS; |
|
|
1039 | #endif |
|
|
1040 | |
|
|
1041 | if (res < 0 && errno == ENOSYS && fd >= 0) |
|
|
1042 | sync (); |
|
|
1043 | |
|
|
1044 | return res; |
|
|
1045 | } |
920 | |
1046 | |
921 | /* sync_file_range always needs emulation */ |
1047 | /* sync_file_range always needs emulation */ |
922 | static int |
1048 | static int |
923 | eio__sync_file_range (int fd, off_t offset, size_t nbytes, unsigned int flags) |
1049 | eio__sync_file_range (int fd, off_t offset, size_t nbytes, unsigned int flags) |
924 | { |
1050 | { |
… | |
… | |
944 | /* even though we could play tricks with the flags, it's better to always |
1070 | /* even though we could play tricks with the flags, it's better to always |
945 | * call fdatasync, as that matches the expectation of its users best */ |
1071 | * call fdatasync, as that matches the expectation of its users best */ |
946 | return fdatasync (fd); |
1072 | return fdatasync (fd); |
947 | } |
1073 | } |
948 | |
1074 | |
|
|
1075 | static int |
|
|
1076 | eio__fallocate (int fd, int mode, off_t offset, size_t len) |
|
|
1077 | { |
|
|
1078 | #if HAVE_FALLOCATE |
|
|
1079 | return fallocate (fd, mode, offset, len); |
|
|
1080 | #else |
|
|
1081 | errno = ENOSYS; |
|
|
1082 | return -1; |
|
|
1083 | #endif |
|
|
1084 | } |
|
|
1085 | |
949 | #if !HAVE_READAHEAD |
1086 | #if !HAVE_READAHEAD |
950 | # undef readahead |
1087 | # undef readahead |
951 | # define readahead(fd,offset,count) eio__readahead (fd, offset, count, self) |
1088 | # define readahead(fd,offset,count) eio__readahead (fd, offset, count, self) |
952 | |
1089 | |
953 | static ssize_t |
1090 | static eio_ssize_t |
954 | eio__readahead (int fd, off_t offset, size_t count, etp_worker *self) |
1091 | eio__readahead (int fd, off_t offset, size_t count, etp_worker *self) |
955 | { |
1092 | { |
956 | size_t todo = count; |
1093 | size_t todo = count; |
957 | dBUF; |
1094 | dBUF; |
958 | |
1095 | |
… | |
… | |
963 | pread (fd, eio_buf, len, offset); |
1100 | pread (fd, eio_buf, len, offset); |
964 | offset += len; |
1101 | offset += len; |
965 | todo -= len; |
1102 | todo -= len; |
966 | } |
1103 | } |
967 | |
1104 | |
|
|
1105 | FUBd; |
|
|
1106 | |
968 | errno = 0; |
1107 | errno = 0; |
969 | return count; |
1108 | return count; |
970 | } |
1109 | } |
971 | |
1110 | |
972 | #endif |
1111 | #endif |
973 | |
1112 | |
974 | /* sendfile always needs emulation */ |
1113 | /* sendfile always needs emulation */ |
975 | static ssize_t |
1114 | static eio_ssize_t |
976 | eio__sendfile (int ofd, int ifd, off_t offset, size_t count, etp_worker *self) |
1115 | eio__sendfile (int ofd, int ifd, off_t offset, size_t count) |
977 | { |
1116 | { |
978 | ssize_t written = 0; |
1117 | eio_ssize_t written = 0; |
979 | ssize_t res; |
1118 | eio_ssize_t res; |
980 | |
1119 | |
981 | if (!count) |
1120 | if (!count) |
982 | return 0; |
1121 | return 0; |
983 | |
1122 | |
984 | for (;;) |
1123 | for (;;) |
985 | { |
1124 | { |
|
|
1125 | #ifdef __APPLE__ |
|
|
1126 | # undef HAVE_SENDFILE /* broken, as everything on os x */ |
|
|
1127 | #endif |
986 | #if HAVE_SENDFILE |
1128 | #if HAVE_SENDFILE |
987 | # if __linux |
1129 | # if __linux |
988 | off_t soffset = offset; |
1130 | off_t soffset = offset; |
989 | res = sendfile (ofd, ifd, &soffset, count); |
1131 | res = sendfile (ofd, ifd, &soffset, count); |
990 | |
1132 | |
… | |
… | |
1006 | |
1148 | |
1007 | /* according to source inspection, this is correct, and useful behaviour */ |
1149 | /* according to source inspection, this is correct, and useful behaviour */ |
1008 | if (sbytes) |
1150 | if (sbytes) |
1009 | res = sbytes; |
1151 | res = sbytes; |
1010 | |
1152 | |
1011 | # elif defined (__APPLE__) && 0 /* broken, as everything on os x */ |
1153 | # elif defined (__APPLE__) |
1012 | off_t sbytes = count; |
1154 | off_t sbytes = count; |
1013 | res = sendfile (ifd, ofd, offset, &sbytes, 0, 0); |
1155 | res = sendfile (ifd, ofd, offset, &sbytes, 0, 0); |
1014 | |
1156 | |
1015 | /* according to the manpage, sbytes is always valid */ |
1157 | /* according to the manpage, sbytes is always valid */ |
1016 | if (sbytes) |
1158 | if (sbytes) |
… | |
… | |
1033 | if (res < 0 && sbytes) |
1175 | if (res < 0 && sbytes) |
1034 | res = sbytes; |
1176 | res = sbytes; |
1035 | |
1177 | |
1036 | # endif |
1178 | # endif |
1037 | |
1179 | |
1038 | #elif defined (_WIN32) |
1180 | #elif defined (_WIN32) && 0 |
1039 | /* does not work, just for documentation of what would need to be done */ |
1181 | /* does not work, just for documentation of what would need to be done */ |
1040 | /* actually, cannot be done like this, as TransmitFile changes the file offset, */ |
1182 | /* actually, cannot be done like this, as TransmitFile changes the file offset, */ |
1041 | /* libeio guarantees that the file offset does not change, and windows */ |
1183 | /* libeio guarantees that the file offset does not change, and windows */ |
1042 | /* has no way to get an independent handle to the same file description */ |
1184 | /* has no way to get an independent handle to the same file description */ |
1043 | HANDLE h = TO_SOCKET (ifd); |
1185 | HANDLE h = TO_SOCKET (ifd); |
… | |
… | |
1076 | && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK |
1218 | && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK |
1077 | /* BSDs */ |
1219 | /* BSDs */ |
1078 | #ifdef ENOTSUP /* sigh, if the steenking pile called openbsd would only try to at least compile posix code... */ |
1220 | #ifdef ENOTSUP /* sigh, if the steenking pile called openbsd would only try to at least compile posix code... */ |
1079 | || errno == ENOTSUP |
1221 | || errno == ENOTSUP |
1080 | #endif |
1222 | #endif |
|
|
1223 | #ifdef EOPNOTSUPP /* windows */ |
1081 | || errno == EOPNOTSUPP /* BSDs */ |
1224 | || errno == EOPNOTSUPP /* BSDs */ |
|
|
1225 | #endif |
1082 | #if __solaris |
1226 | #if __solaris |
1083 | || errno == EAFNOSUPPORT || errno == EPROTOTYPE |
1227 | || errno == EAFNOSUPPORT || errno == EPROTOTYPE |
1084 | #endif |
1228 | #endif |
1085 | ) |
1229 | ) |
1086 | ) |
1230 | ) |
… | |
… | |
1090 | |
1234 | |
1091 | res = 0; |
1235 | res = 0; |
1092 | |
1236 | |
1093 | while (count) |
1237 | while (count) |
1094 | { |
1238 | { |
1095 | ssize_t cnt; |
1239 | eio_ssize_t cnt; |
1096 | |
1240 | |
1097 | cnt = pread (ifd, eio_buf, count > EIO_BUFSIZE ? EIO_BUFSIZE : count, offset); |
1241 | cnt = pread (ifd, eio_buf, count > EIO_BUFSIZE ? EIO_BUFSIZE : count, offset); |
1098 | |
1242 | |
1099 | if (cnt <= 0) |
1243 | if (cnt <= 0) |
1100 | { |
1244 | { |
… | |
… | |
1112 | |
1256 | |
1113 | offset += cnt; |
1257 | offset += cnt; |
1114 | res += cnt; |
1258 | res += cnt; |
1115 | count -= cnt; |
1259 | count -= cnt; |
1116 | } |
1260 | } |
|
|
1261 | |
|
|
1262 | FUBd; |
1117 | } |
1263 | } |
1118 | |
1264 | |
1119 | return res; |
1265 | return res; |
|
|
1266 | } |
|
|
1267 | |
|
|
1268 | #ifdef PAGESIZE |
|
|
1269 | # define eio_pagesize() PAGESIZE |
|
|
1270 | #else |
|
|
1271 | static intptr_t |
|
|
1272 | eio_pagesize (void) |
|
|
1273 | { |
|
|
1274 | static intptr_t page; |
|
|
1275 | |
|
|
1276 | if (!page) |
|
|
1277 | page = sysconf (_SC_PAGESIZE); |
|
|
1278 | |
|
|
1279 | return page; |
|
|
1280 | } |
|
|
1281 | #endif |
|
|
1282 | |
|
|
1283 | static void |
|
|
1284 | eio_page_align (void **addr, size_t *length) |
|
|
1285 | { |
|
|
1286 | intptr_t mask = eio_pagesize () - 1; |
|
|
1287 | |
|
|
1288 | /* round down addr */ |
|
|
1289 | intptr_t adj = mask & (intptr_t)*addr; |
|
|
1290 | |
|
|
1291 | *addr = (void *)((intptr_t)*addr - adj); |
|
|
1292 | *length += adj; |
|
|
1293 | |
|
|
1294 | /* round up length */ |
|
|
1295 | *length = (*length + mask) & ~mask; |
|
|
1296 | } |
|
|
1297 | |
|
|
1298 | #if !_POSIX_MEMLOCK |
|
|
1299 | # define eio__mlockall(a) EIO_ENOSYS () |
|
|
1300 | #else |
|
|
1301 | |
|
|
1302 | static int |
|
|
1303 | eio__mlockall (int flags) |
|
|
1304 | { |
|
|
1305 | #if __GLIBC__ == 2 && __GLIBC_MINOR__ <= 7 |
|
|
1306 | extern int mallopt (int, int); |
|
|
1307 | mallopt (-6, 238); /* http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=473812 */ |
|
|
1308 | #endif |
|
|
1309 | |
|
|
1310 | if (EIO_MCL_CURRENT != MCL_CURRENT |
|
|
1311 | || EIO_MCL_FUTURE != MCL_FUTURE) |
|
|
1312 | { |
|
|
1313 | flags = 0 |
|
|
1314 | | (flags & EIO_MCL_CURRENT ? MCL_CURRENT : 0) |
|
|
1315 | | (flags & EIO_MCL_FUTURE ? MCL_FUTURE : 0); |
|
|
1316 | } |
|
|
1317 | |
|
|
1318 | return mlockall (flags); |
|
|
1319 | } |
|
|
1320 | #endif |
|
|
1321 | |
|
|
1322 | #if !_POSIX_MEMLOCK_RANGE |
|
|
1323 | # define eio__mlock(a,b) EIO_ENOSYS () |
|
|
1324 | #else |
|
|
1325 | |
|
|
1326 | static int |
|
|
1327 | eio__mlock (void *addr, size_t length) |
|
|
1328 | { |
|
|
1329 | eio_page_align (&addr, &length); |
|
|
1330 | |
|
|
1331 | return mlock (addr, length); |
|
|
1332 | } |
|
|
1333 | |
|
|
1334 | #endif |
|
|
1335 | |
|
|
1336 | #if !(_POSIX_MAPPED_FILES && _POSIX_SYNCHRONIZED_IO) |
|
|
1337 | # define eio__msync(a,b,c) EIO_ENOSYS () |
|
|
1338 | #else |
|
|
1339 | |
|
|
1340 | static int |
|
|
1341 | eio__msync (void *mem, size_t len, int flags) |
|
|
1342 | { |
|
|
1343 | eio_page_align (&mem, &len); |
|
|
1344 | |
|
|
1345 | if (EIO_MS_ASYNC != MS_SYNC |
|
|
1346 | || EIO_MS_INVALIDATE != MS_INVALIDATE |
|
|
1347 | || EIO_MS_SYNC != MS_SYNC) |
|
|
1348 | { |
|
|
1349 | flags = 0 |
|
|
1350 | | (flags & EIO_MS_ASYNC ? MS_ASYNC : 0) |
|
|
1351 | | (flags & EIO_MS_INVALIDATE ? MS_INVALIDATE : 0) |
|
|
1352 | | (flags & EIO_MS_SYNC ? MS_SYNC : 0); |
|
|
1353 | } |
|
|
1354 | |
|
|
1355 | return msync (mem, len, flags); |
|
|
1356 | } |
|
|
1357 | |
|
|
1358 | #endif |
|
|
1359 | |
|
|
1360 | static int |
|
|
1361 | eio__mtouch (eio_req *req) |
|
|
1362 | { |
|
|
1363 | void *mem = req->ptr2; |
|
|
1364 | size_t len = req->size; |
|
|
1365 | int flags = req->int1; |
|
|
1366 | |
|
|
1367 | eio_page_align (&mem, &len); |
|
|
1368 | |
|
|
1369 | { |
|
|
1370 | intptr_t addr = (intptr_t)mem; |
|
|
1371 | intptr_t end = addr + len; |
|
|
1372 | intptr_t page = eio_pagesize (); |
|
|
1373 | |
|
|
1374 | if (addr < end) |
|
|
1375 | if (flags & EIO_MT_MODIFY) /* modify */ |
|
|
1376 | do { *((volatile sig_atomic_t *)addr) |= 0; } while ((addr += page) < len && !EIO_CANCELLED (req)); |
|
|
1377 | else |
|
|
1378 | do { *((volatile sig_atomic_t *)addr) ; } while ((addr += page) < len && !EIO_CANCELLED (req)); |
|
|
1379 | } |
|
|
1380 | |
|
|
1381 | return 0; |
|
|
1382 | } |
|
|
1383 | |
|
|
1384 | /*****************************************************************************/ |
|
|
1385 | /* requests implemented outside eio_execute, because they are so large */ |
|
|
1386 | |
|
|
1387 | /* result will always end up in tmpbuf, there is always space for adding a 0-byte */ |
|
|
1388 | static int |
|
|
1389 | eio__realpath (struct tmpbuf *tmpbuf, eio_wd wd, const char *path) |
|
|
1390 | { |
|
|
1391 | const char *rel = path; |
|
|
1392 | char *res; |
|
|
1393 | char *tmp1, *tmp2; |
|
|
1394 | #if SYMLOOP_MAX > 32 |
|
|
1395 | int symlinks = SYMLOOP_MAX; |
|
|
1396 | #else |
|
|
1397 | int symlinks = 32; |
|
|
1398 | #endif |
|
|
1399 | |
|
|
1400 | errno = EINVAL; |
|
|
1401 | if (!rel) |
|
|
1402 | return -1; |
|
|
1403 | |
|
|
1404 | errno = ENOENT; |
|
|
1405 | if (!*rel) |
|
|
1406 | return -1; |
|
|
1407 | |
|
|
1408 | res = tmpbuf_get (tmpbuf, PATH_MAX * 3); |
|
|
1409 | tmp1 = res + PATH_MAX; |
|
|
1410 | tmp2 = tmp1 + PATH_MAX; |
|
|
1411 | |
|
|
1412 | #if 0 /* disabled, the musl way to do things is just too racy */ |
|
|
1413 | #if __linux && defined(O_NONBLOCK) && defined(O_NOATIME) |
|
|
1414 | /* on linux we may be able to ask the kernel */ |
|
|
1415 | { |
|
|
1416 | int fd = open (rel, O_RDONLY | O_NONBLOCK | O_NOCTTY | O_NOATIME); |
|
|
1417 | |
|
|
1418 | if (fd >= 0) |
|
|
1419 | { |
|
|
1420 | sprintf (tmp1, "/proc/self/fd/%d", fd); |
|
|
1421 | req->result = readlink (tmp1, res, PATH_MAX); |
|
|
1422 | close (fd); |
|
|
1423 | |
|
|
1424 | /* here we should probably stat the open file and the disk file, to make sure they still match */ |
|
|
1425 | |
|
|
1426 | if (req->result > 0) |
|
|
1427 | goto done; |
|
|
1428 | } |
|
|
1429 | else if (errno == ELOOP || errno == ENAMETOOLONG || errno == ENOENT || errno == ENOTDIR || errno == EIO) |
|
|
1430 | return; |
|
|
1431 | } |
|
|
1432 | #endif |
|
|
1433 | #endif |
|
|
1434 | |
|
|
1435 | if (*rel != '/') |
|
|
1436 | { |
|
|
1437 | int len; |
|
|
1438 | |
|
|
1439 | errno = ENOENT; |
|
|
1440 | if (wd == EIO_INVALID_WD) |
|
|
1441 | return -1; |
|
|
1442 | |
|
|
1443 | if (wd == EIO_CWD) |
|
|
1444 | { |
|
|
1445 | if (!getcwd (res, PATH_MAX)) |
|
|
1446 | return -1; |
|
|
1447 | |
|
|
1448 | len = strlen (res); |
|
|
1449 | } |
|
|
1450 | else |
|
|
1451 | memcpy (res, wd->str, len = wd->len); |
|
|
1452 | |
|
|
1453 | if (res [1]) /* only use if not / */ |
|
|
1454 | res += len; |
|
|
1455 | } |
|
|
1456 | |
|
|
1457 | while (*rel) |
|
|
1458 | { |
|
|
1459 | eio_ssize_t len, linklen; |
|
|
1460 | const char *beg = rel; |
|
|
1461 | |
|
|
1462 | while (*rel && *rel != '/') |
|
|
1463 | ++rel; |
|
|
1464 | |
|
|
1465 | len = rel - beg; |
|
|
1466 | |
|
|
1467 | if (!len) /* skip slashes */ |
|
|
1468 | { |
|
|
1469 | ++rel; |
|
|
1470 | continue; |
|
|
1471 | } |
|
|
1472 | |
|
|
1473 | if (beg [0] == '.') |
|
|
1474 | { |
|
|
1475 | if (len == 1) |
|
|
1476 | continue; /* . - nop */ |
|
|
1477 | |
|
|
1478 | if (beg [1] == '.' && len == 2) |
|
|
1479 | { |
|
|
1480 | /* .. - back up one component, if possible */ |
|
|
1481 | |
|
|
1482 | while (res != tmpbuf->ptr) |
|
|
1483 | if (*--res == '/') |
|
|
1484 | break; |
|
|
1485 | |
|
|
1486 | continue; |
|
|
1487 | } |
|
|
1488 | } |
|
|
1489 | |
|
|
1490 | errno = ENAMETOOLONG; |
|
|
1491 | if (res + 1 + len + 1 >= tmp1) |
|
|
1492 | return -1; |
|
|
1493 | |
|
|
1494 | /* copy one component */ |
|
|
1495 | *res = '/'; |
|
|
1496 | memcpy (res + 1, beg, len); |
|
|
1497 | |
|
|
1498 | /* zero-terminate, for readlink */ |
|
|
1499 | res [len + 1] = 0; |
|
|
1500 | |
|
|
1501 | /* now check if it's a symlink */ |
|
|
1502 | linklen = readlink (tmpbuf->ptr, tmp1, PATH_MAX); |
|
|
1503 | |
|
|
1504 | if (linklen < 0) |
|
|
1505 | { |
|
|
1506 | if (errno != EINVAL) |
|
|
1507 | return -1; |
|
|
1508 | |
|
|
1509 | /* it's a normal directory. hopefully */ |
|
|
1510 | res += len + 1; |
|
|
1511 | } |
|
|
1512 | else |
|
|
1513 | { |
|
|
1514 | /* yay, it was a symlink - build new path in tmp2 */ |
|
|
1515 | int rellen = strlen (rel); |
|
|
1516 | |
|
|
1517 | errno = ENAMETOOLONG; |
|
|
1518 | if (linklen + 1 + rellen >= PATH_MAX) |
|
|
1519 | return -1; |
|
|
1520 | |
|
|
1521 | errno = ELOOP; |
|
|
1522 | if (!--symlinks) |
|
|
1523 | return -1; |
|
|
1524 | |
|
|
1525 | if (*tmp1 == '/') |
|
|
1526 | res = tmpbuf->ptr; /* symlink resolves to an absolute path */ |
|
|
1527 | |
|
|
1528 | /* we need to be careful, as rel might point into tmp2 already */ |
|
|
1529 | memmove (tmp2 + linklen + 1, rel, rellen + 1); |
|
|
1530 | tmp2 [linklen] = '/'; |
|
|
1531 | memcpy (tmp2, tmp1, linklen); |
|
|
1532 | |
|
|
1533 | rel = tmp2; |
|
|
1534 | } |
|
|
1535 | } |
|
|
1536 | |
|
|
1537 | /* special case for the lone root path */ |
|
|
1538 | if (res == tmpbuf->ptr) |
|
|
1539 | *res++ = '/'; |
|
|
1540 | |
|
|
1541 | return res - (char *)tmpbuf->ptr; |
1120 | } |
1542 | } |
1121 | |
1543 | |
1122 | static signed char |
1544 | static signed char |
1123 | eio_dent_cmp (const eio_dirent *a, const eio_dirent *b) |
1545 | eio_dent_cmp (const eio_dirent *a, const eio_dirent *b) |
1124 | { |
1546 | { |
… | |
… | |
1132 | |
1554 | |
1133 | #define EIO_SORT_CUTOFF 30 /* quite high, but performs well on many filesystems */ |
1555 | #define EIO_SORT_CUTOFF 30 /* quite high, but performs well on many filesystems */ |
1134 | #define EIO_SORT_FAST 60 /* when to only use insertion sort */ |
1556 | #define EIO_SORT_FAST 60 /* when to only use insertion sort */ |
1135 | |
1557 | |
1136 | static void |
1558 | static void |
1137 | eio_dent_radix_sort (eio_dirent *dents, int size, signed char score_bits, ino_t inode_bits) |
1559 | eio_dent_radix_sort (eio_dirent *dents, int size, signed char score_bits, eio_ino_t inode_bits) |
1138 | { |
1560 | { |
1139 | unsigned char bits [9 + sizeof (ino_t) * 8]; |
1561 | unsigned char bits [9 + sizeof (eio_ino_t) * 8]; |
1140 | unsigned char *bit = bits; |
1562 | unsigned char *bit = bits; |
1141 | |
1563 | |
1142 | assert (CHAR_BIT == 8); |
1564 | assert (CHAR_BIT == 8); |
1143 | assert (sizeof (eio_dirent) * 8 < 256); |
1565 | assert (sizeof (eio_dirent) * 8 < 256); |
1144 | assert (offsetof (eio_dirent, inode)); /* we use bit #0 as sentinel */ |
1566 | assert (offsetof (eio_dirent, inode)); /* we use bit #0 as sentinel */ |
… | |
… | |
1146 | |
1568 | |
1147 | if (size <= EIO_SORT_FAST) |
1569 | if (size <= EIO_SORT_FAST) |
1148 | return; |
1570 | return; |
1149 | |
1571 | |
1150 | /* first prepare an array of bits to test in our radix sort */ |
1572 | /* first prepare an array of bits to test in our radix sort */ |
1151 | /* try to take endianness into account, as well as differences in ino_t sizes */ |
1573 | /* try to take endianness into account, as well as differences in eio_ino_t sizes */ |
1152 | /* inode_bits must contain all inodes ORed together */ |
1574 | /* inode_bits must contain all inodes ORed together */ |
1153 | /* which is used to skip bits that are 0 everywhere, which is very common */ |
1575 | /* which is used to skip bits that are 0 everywhere, which is very common */ |
1154 | { |
1576 | { |
1155 | ino_t endianness; |
1577 | eio_ino_t endianness; |
1156 | int i, j; |
1578 | int i, j; |
1157 | |
1579 | |
1158 | /* we store the byte offset of byte n into byte n of "endianness" */ |
1580 | /* we store the byte offset of byte n into byte n of "endianness" */ |
1159 | for (i = 0; i < sizeof (ino_t); ++i) |
1581 | for (i = 0; i < sizeof (eio_ino_t); ++i) |
1160 | ((unsigned char *)&endianness)[i] = i; |
1582 | ((unsigned char *)&endianness)[i] = i; |
1161 | |
1583 | |
1162 | *bit++ = 0; |
1584 | *bit++ = 0; |
1163 | |
1585 | |
1164 | for (i = 0; i < sizeof (ino_t); ++i) |
1586 | for (i = 0; i < sizeof (eio_ino_t); ++i) |
1165 | { |
1587 | { |
1166 | /* shifting off the byte offsets out of "endianness" */ |
1588 | /* shifting off the byte offsets out of "endianness" */ |
1167 | int offs = (offsetof (eio_dirent, inode) + (endianness & 0xff)) * 8; |
1589 | int offs = (offsetof (eio_dirent, inode) + (endianness & 0xff)) * 8; |
1168 | endianness >>= 8; |
1590 | endianness >>= 8; |
1169 | |
1591 | |
1170 | for (j = 0; j < 8; ++j) |
1592 | for (j = 0; j < 8; ++j) |
1171 | if (inode_bits & (((ino_t)1) << (i * 8 + j))) |
1593 | if (inode_bits & (((eio_ino_t)1) << (i * 8 + j))) |
1172 | *bit++ = offs + j; |
1594 | *bit++ = offs + j; |
1173 | } |
1595 | } |
1174 | |
1596 | |
1175 | for (j = 0; j < 8; ++j) |
1597 | for (j = 0; j < 8; ++j) |
1176 | if (score_bits & (1 << j)) |
1598 | if (score_bits & (1 << j)) |
1177 | *bit++ = offsetof (eio_dirent, score) * 8 + j; |
1599 | *bit++ = offsetof (eio_dirent, score) * 8 + j; |
1178 | } |
1600 | } |
1179 | |
1601 | |
1180 | /* now actually do the sorting (a variant of MSD radix sort) */ |
1602 | /* now actually do the sorting (a variant of MSD radix sort) */ |
1181 | { |
1603 | { |
1182 | eio_dirent *base_stk [9 + sizeof (ino_t) * 8], *base; |
1604 | eio_dirent *base_stk [9 + sizeof (eio_ino_t) * 8], *base; |
1183 | eio_dirent *end_stk [9 + sizeof (ino_t) * 8], *end; |
1605 | eio_dirent *end_stk [9 + sizeof (eio_ino_t) * 8], *end; |
1184 | unsigned char *bit_stk [9 + sizeof (ino_t) * 8]; |
1606 | unsigned char *bit_stk [9 + sizeof (eio_ino_t) * 8]; |
1185 | int stk_idx = 0; |
1607 | int stk_idx = 0; |
1186 | |
1608 | |
1187 | base_stk [stk_idx] = dents; |
1609 | base_stk [stk_idx] = dents; |
1188 | end_stk [stk_idx] = dents + size; |
1610 | end_stk [stk_idx] = dents + size; |
1189 | bit_stk [stk_idx] = bit - 1; |
1611 | bit_stk [stk_idx] = bit - 1; |
… | |
… | |
1268 | } |
1690 | } |
1269 | } |
1691 | } |
1270 | } |
1692 | } |
1271 | |
1693 | |
1272 | static void |
1694 | static void |
1273 | eio_dent_sort (eio_dirent *dents, int size, signed char score_bits, ino_t inode_bits) |
1695 | eio_dent_sort (eio_dirent *dents, int size, signed char score_bits, eio_ino_t inode_bits) |
1274 | { |
1696 | { |
1275 | if (size <= 1) |
1697 | if (size <= 1) |
1276 | return; /* our insertion sort relies on size > 0 */ |
1698 | return; /* our insertion sort relies on size > 0 */ |
1277 | |
1699 | |
1278 | /* first we use a radix sort, but only for dirs >= EIO_SORT_FAST */ |
1700 | /* first we use a radix sort, but only for dirs >= EIO_SORT_FAST */ |
… | |
… | |
1286 | |
1708 | |
1287 | /* read a full directory */ |
1709 | /* read a full directory */ |
1288 | static void |
1710 | static void |
1289 | eio__scandir (eio_req *req, etp_worker *self) |
1711 | eio__scandir (eio_req *req, etp_worker *self) |
1290 | { |
1712 | { |
1291 | DIR *dirp; |
|
|
1292 | EIO_STRUCT_DIRENT *entp; |
|
|
1293 | char *name, *names; |
1713 | char *name, *names; |
1294 | int namesalloc = 4096; |
1714 | int namesalloc = 4096 - sizeof (void *) * 4; |
1295 | int namesoffs = 0; |
1715 | int namesoffs = 0; |
1296 | int flags = req->int1; |
1716 | int flags = req->int1; |
1297 | eio_dirent *dents = 0; |
1717 | eio_dirent *dents = 0; |
1298 | int dentalloc = 128; |
1718 | int dentalloc = 128; |
1299 | int dentoffs = 0; |
1719 | int dentoffs = 0; |
1300 | ino_t inode_bits = 0; |
1720 | eio_ino_t inode_bits = 0; |
|
|
1721 | #ifdef _WIN32 |
|
|
1722 | HANDLE dirp; |
|
|
1723 | WIN32_FIND_DATA entp; |
|
|
1724 | #else |
|
|
1725 | DIR *dirp; |
|
|
1726 | EIO_STRUCT_DIRENT *entp; |
|
|
1727 | #endif |
1301 | |
1728 | |
1302 | req->result = -1; |
1729 | req->result = -1; |
1303 | |
1730 | |
1304 | if (!(flags & EIO_READDIR_DENTS)) |
1731 | if (!(flags & EIO_READDIR_DENTS)) |
1305 | flags &= ~(EIO_READDIR_DIRS_FIRST | EIO_READDIR_STAT_ORDER); |
1732 | flags &= ~(EIO_READDIR_DIRS_FIRST | EIO_READDIR_STAT_ORDER); |
1306 | |
1733 | |
1307 | X_LOCK (wrklock); |
1734 | #ifdef _WIN32 |
1308 | /* the corresponding closedir is in ETP_WORKER_CLEAR */ |
1735 | { |
|
|
1736 | int len = strlen ((const char *)req->ptr1); |
|
|
1737 | char *path = malloc (MAX_PATH); |
|
|
1738 | const char *fmt; |
|
|
1739 | const char *reqpath = wd_expand (&self->tmpbuf, req->wd, req->ptr1); |
|
|
1740 | |
|
|
1741 | if (!len) |
|
|
1742 | fmt = "./*"; |
|
|
1743 | else if (reqpath[len - 1] == '/' || reqpath[len - 1] == '\\') |
|
|
1744 | fmt = "%s*"; |
|
|
1745 | else |
|
|
1746 | fmt = "%s/*"; |
|
|
1747 | |
|
|
1748 | _snprintf (path, MAX_PATH, fmt, reqpath); |
|
|
1749 | dirp = FindFirstFile (path, &entp); |
|
|
1750 | free (path); |
|
|
1751 | |
|
|
1752 | if (dirp == INVALID_HANDLE_VALUE) |
|
|
1753 | { |
|
|
1754 | /* should steal _dosmaperr */ |
|
|
1755 | switch (GetLastError ()) |
|
|
1756 | { |
|
|
1757 | case ERROR_FILE_NOT_FOUND: |
|
|
1758 | req->result = 0; |
|
|
1759 | break; |
|
|
1760 | |
|
|
1761 | case ERROR_INVALID_NAME: |
|
|
1762 | case ERROR_PATH_NOT_FOUND: |
|
|
1763 | case ERROR_NO_MORE_FILES: |
|
|
1764 | errno = ENOENT; |
|
|
1765 | break; |
|
|
1766 | |
|
|
1767 | case ERROR_NOT_ENOUGH_MEMORY: |
|
|
1768 | errno = ENOMEM; |
|
|
1769 | break; |
|
|
1770 | |
|
|
1771 | default: |
|
|
1772 | errno = EINVAL; |
|
|
1773 | break; |
|
|
1774 | } |
|
|
1775 | |
|
|
1776 | return; |
|
|
1777 | } |
|
|
1778 | } |
|
|
1779 | #else |
|
|
1780 | #if HAVE_AT |
|
|
1781 | if (req->wd) |
|
|
1782 | { |
|
|
1783 | int fd = openat (WD2FD (req->wd), req->ptr1, O_CLOEXEC | O_SEARCH | O_DIRECTORY); |
|
|
1784 | |
|
|
1785 | if (fd < 0) |
|
|
1786 | return; |
|
|
1787 | |
|
|
1788 | dirp = fdopendir (fd); |
|
|
1789 | |
|
|
1790 | if (!dirp) |
|
|
1791 | close (fd); |
|
|
1792 | } |
|
|
1793 | else |
1309 | self->dirp = dirp = opendir (req->ptr1); |
1794 | dirp = opendir (req->ptr1); |
|
|
1795 | #else |
|
|
1796 | dirp = opendir (wd_expand (&self->tmpbuf, req->wd, req->ptr1)); |
|
|
1797 | #endif |
|
|
1798 | |
|
|
1799 | if (!dirp) |
|
|
1800 | return; |
|
|
1801 | #endif |
1310 | |
1802 | |
1311 | if (req->flags & EIO_FLAG_PTR1_FREE) |
1803 | if (req->flags & EIO_FLAG_PTR1_FREE) |
1312 | free (req->ptr1); |
1804 | free (req->ptr1); |
1313 | |
1805 | |
1314 | req->flags |= EIO_FLAG_PTR1_FREE | EIO_FLAG_PTR2_FREE; |
1806 | req->flags |= EIO_FLAG_PTR1_FREE | EIO_FLAG_PTR2_FREE; |
1315 | req->ptr1 = dents = flags ? malloc (dentalloc * sizeof (eio_dirent)) : 0; |
1807 | req->ptr1 = dents = flags ? malloc (dentalloc * sizeof (eio_dirent)) : 0; |
1316 | req->ptr2 = names = malloc (namesalloc); |
1808 | req->ptr2 = names = malloc (namesalloc); |
1317 | X_UNLOCK (wrklock); |
|
|
1318 | |
1809 | |
1319 | if (dirp && names && (!flags || dents)) |
1810 | if (!names || (flags && !dents)) |
|
|
1811 | return; |
|
|
1812 | |
1320 | for (;;) |
1813 | for (;;) |
1321 | { |
1814 | { |
|
|
1815 | int done; |
|
|
1816 | |
|
|
1817 | #ifdef _WIN32 |
|
|
1818 | done = !dirp; |
|
|
1819 | #else |
1322 | errno = 0; |
1820 | errno = 0; |
1323 | entp = readdir (dirp); |
1821 | entp = readdir (dirp); |
|
|
1822 | done = !entp; |
|
|
1823 | #endif |
1324 | |
1824 | |
1325 | if (!entp) |
1825 | if (done) |
1326 | { |
1826 | { |
|
|
1827 | #ifndef _WIN32 |
|
|
1828 | int old_errno = errno; |
|
|
1829 | closedir (dirp); |
|
|
1830 | errno = old_errno; |
|
|
1831 | |
1327 | if (errno) |
1832 | if (errno) |
1328 | break; |
1833 | break; |
|
|
1834 | #endif |
1329 | |
1835 | |
1330 | /* sort etc. */ |
1836 | /* sort etc. */ |
1331 | req->int1 = flags; |
1837 | req->int1 = flags; |
1332 | req->result = dentoffs; |
1838 | req->result = dentoffs; |
1333 | |
1839 | |
1334 | if (flags & EIO_READDIR_STAT_ORDER) |
1840 | if (flags & EIO_READDIR_STAT_ORDER) |
1335 | eio_dent_sort (dents, dentoffs, flags & EIO_READDIR_DIRS_FIRST ? 7 : 0, inode_bits); |
1841 | eio_dent_sort (dents, dentoffs, flags & EIO_READDIR_DIRS_FIRST ? 7 : 0, inode_bits); |
1336 | else if (flags & EIO_READDIR_DIRS_FIRST) |
1842 | else if (flags & EIO_READDIR_DIRS_FIRST) |
1337 | if (flags & EIO_READDIR_FOUND_UNKNOWN) |
1843 | if (flags & EIO_READDIR_FOUND_UNKNOWN) |
1338 | eio_dent_sort (dents, dentoffs, 7, inode_bits); /* sort by score and inode */ |
1844 | eio_dent_sort (dents, dentoffs, 7, inode_bits); /* sort by score and inode */ |
1339 | else |
1845 | else |
|
|
1846 | { |
|
|
1847 | /* in this case, all is known, and we just put dirs first and sort them */ |
|
|
1848 | eio_dirent *oth = dents + dentoffs; |
|
|
1849 | eio_dirent *dir = dents; |
|
|
1850 | |
|
|
1851 | /* now partition dirs to the front, and non-dirs to the back */ |
|
|
1852 | /* by walking from both sides and swapping if necessary */ |
|
|
1853 | while (oth > dir) |
|
|
1854 | { |
|
|
1855 | if (dir->type == EIO_DT_DIR) |
|
|
1856 | ++dir; |
|
|
1857 | else if ((--oth)->type == EIO_DT_DIR) |
|
|
1858 | { |
|
|
1859 | eio_dirent tmp = *dir; *dir = *oth; *oth = tmp; |
|
|
1860 | |
|
|
1861 | ++dir; |
|
|
1862 | } |
|
|
1863 | } |
|
|
1864 | |
|
|
1865 | /* now sort the dirs only (dirs all have the same score) */ |
|
|
1866 | eio_dent_sort (dents, dir - dents, 0, inode_bits); |
|
|
1867 | } |
|
|
1868 | |
|
|
1869 | break; |
|
|
1870 | } |
|
|
1871 | |
|
|
1872 | /* now add the entry to our list(s) */ |
|
|
1873 | name = D_NAME (entp); |
|
|
1874 | |
|
|
1875 | /* skip . and .. entries */ |
|
|
1876 | if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2]))) |
|
|
1877 | { |
|
|
1878 | int len = D_NAMLEN (entp) + 1; |
|
|
1879 | |
|
|
1880 | while (ecb_expect_false (namesoffs + len > namesalloc)) |
|
|
1881 | { |
|
|
1882 | namesalloc *= 2; |
|
|
1883 | req->ptr2 = names = realloc (names, namesalloc); |
|
|
1884 | |
|
|
1885 | if (!names) |
|
|
1886 | break; |
|
|
1887 | } |
|
|
1888 | |
|
|
1889 | memcpy (names + namesoffs, name, len); |
|
|
1890 | |
|
|
1891 | if (dents) |
|
|
1892 | { |
|
|
1893 | struct eio_dirent *ent; |
|
|
1894 | |
|
|
1895 | if (ecb_expect_false (dentoffs == dentalloc)) |
1340 | { |
1896 | { |
1341 | /* in this case, all is known, and we just put dirs first and sort them */ |
1897 | dentalloc *= 2; |
|
|
1898 | req->ptr1 = dents = realloc (dents, dentalloc * sizeof (eio_dirent)); |
|
|
1899 | |
|
|
1900 | if (!dents) |
|
|
1901 | break; |
|
|
1902 | } |
|
|
1903 | |
1342 | eio_dirent *oth = dents + dentoffs; |
1904 | ent = dents + dentoffs; |
1343 | eio_dirent *dir = dents; |
|
|
1344 | |
1905 | |
1345 | /* now partition dirs to the front, and non-dirs to the back */ |
1906 | ent->nameofs = namesoffs; /* rather dirtily we store the offset in the pointer */ |
1346 | /* by walking from both sides and swapping if necessary */ |
1907 | ent->namelen = len - 1; |
1347 | while (oth > dir) |
1908 | ent->inode = D_INO (entp); |
|
|
1909 | |
|
|
1910 | inode_bits |= ent->inode; |
|
|
1911 | |
|
|
1912 | switch (D_TYPE (entp)) |
|
|
1913 | { |
|
|
1914 | default: |
|
|
1915 | ent->type = EIO_DT_UNKNOWN; |
|
|
1916 | flags |= EIO_READDIR_FOUND_UNKNOWN; |
|
|
1917 | break; |
|
|
1918 | |
|
|
1919 | #ifdef DT_FIFO |
|
|
1920 | case DT_FIFO: ent->type = EIO_DT_FIFO; break; |
|
|
1921 | #endif |
|
|
1922 | #ifdef DT_CHR |
|
|
1923 | case DT_CHR: ent->type = EIO_DT_CHR; break; |
|
|
1924 | #endif |
|
|
1925 | #ifdef DT_MPC |
|
|
1926 | case DT_MPC: ent->type = EIO_DT_MPC; break; |
|
|
1927 | #endif |
|
|
1928 | #ifdef DT_DIR |
|
|
1929 | case DT_DIR: ent->type = EIO_DT_DIR; break; |
|
|
1930 | #endif |
|
|
1931 | #ifdef DT_NAM |
|
|
1932 | case DT_NAM: ent->type = EIO_DT_NAM; break; |
|
|
1933 | #endif |
|
|
1934 | #ifdef DT_BLK |
|
|
1935 | case DT_BLK: ent->type = EIO_DT_BLK; break; |
|
|
1936 | #endif |
|
|
1937 | #ifdef DT_MPB |
|
|
1938 | case DT_MPB: ent->type = EIO_DT_MPB; break; |
|
|
1939 | #endif |
|
|
1940 | #ifdef DT_REG |
|
|
1941 | case DT_REG: ent->type = EIO_DT_REG; break; |
|
|
1942 | #endif |
|
|
1943 | #ifdef DT_NWK |
|
|
1944 | case DT_NWK: ent->type = EIO_DT_NWK; break; |
|
|
1945 | #endif |
|
|
1946 | #ifdef DT_CMP |
|
|
1947 | case DT_CMP: ent->type = EIO_DT_CMP; break; |
|
|
1948 | #endif |
|
|
1949 | #ifdef DT_LNK |
|
|
1950 | case DT_LNK: ent->type = EIO_DT_LNK; break; |
|
|
1951 | #endif |
|
|
1952 | #ifdef DT_SOCK |
|
|
1953 | case DT_SOCK: ent->type = EIO_DT_SOCK; break; |
|
|
1954 | #endif |
|
|
1955 | #ifdef DT_DOOR |
|
|
1956 | case DT_DOOR: ent->type = EIO_DT_DOOR; break; |
|
|
1957 | #endif |
|
|
1958 | #ifdef DT_WHT |
|
|
1959 | case DT_WHT: ent->type = EIO_DT_WHT; break; |
|
|
1960 | #endif |
|
|
1961 | } |
|
|
1962 | |
|
|
1963 | ent->score = 7; |
|
|
1964 | |
|
|
1965 | if (flags & EIO_READDIR_DIRS_FIRST) |
|
|
1966 | { |
|
|
1967 | if (ent->type == EIO_DT_UNKNOWN) |
1348 | { |
1968 | { |
1349 | if (dir->type == EIO_DT_DIR) |
1969 | if (*name == '.') /* leading dots are likely directories, and, in any case, rare */ |
1350 | ++dir; |
1970 | ent->score = 1; |
1351 | else if ((--oth)->type == EIO_DT_DIR) |
1971 | else if (!strchr (name, '.')) /* absence of dots indicate likely dirs */ |
1352 | { |
1972 | ent->score = len <= 2 ? 4 - len : len <= 4 ? 4 : len <= 7 ? 5 : 6; /* shorter == more likely dir, but avoid too many classes */ |
1353 | eio_dirent tmp = *dir; *dir = *oth; *oth = tmp; |
|
|
1354 | |
|
|
1355 | ++dir; |
|
|
1356 | } |
|
|
1357 | } |
1973 | } |
1358 | |
1974 | else if (ent->type == EIO_DT_DIR) |
1359 | /* now sort the dirs only (dirs all have the same score) */ |
1975 | ent->score = 0; |
1360 | eio_dent_sort (dents, dir - dents, 0, inode_bits); |
|
|
1361 | } |
1976 | } |
1362 | |
|
|
1363 | break; |
|
|
1364 | } |
|
|
1365 | |
|
|
1366 | /* now add the entry to our list(s) */ |
|
|
1367 | name = entp->d_name; |
|
|
1368 | |
|
|
1369 | /* skip . and .. entries */ |
|
|
1370 | if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2]))) |
|
|
1371 | { |
|
|
1372 | int len = D_NAMLEN (entp) + 1; |
|
|
1373 | |
|
|
1374 | while (ecb_expect_false (namesoffs + len > namesalloc)) |
|
|
1375 | { |
|
|
1376 | namesalloc *= 2; |
|
|
1377 | X_LOCK (wrklock); |
|
|
1378 | req->ptr2 = names = realloc (names, namesalloc); |
|
|
1379 | X_UNLOCK (wrklock); |
|
|
1380 | |
|
|
1381 | if (!names) |
|
|
1382 | break; |
|
|
1383 | } |
1977 | } |
1384 | |
1978 | |
1385 | memcpy (names + namesoffs, name, len); |
|
|
1386 | |
|
|
1387 | if (dents) |
|
|
1388 | { |
|
|
1389 | struct eio_dirent *ent; |
|
|
1390 | |
|
|
1391 | if (ecb_expect_false (dentoffs == dentalloc)) |
|
|
1392 | { |
|
|
1393 | dentalloc *= 2; |
|
|
1394 | X_LOCK (wrklock); |
|
|
1395 | req->ptr1 = dents = realloc (dents, dentalloc * sizeof (eio_dirent)); |
|
|
1396 | X_UNLOCK (wrklock); |
|
|
1397 | |
|
|
1398 | if (!dents) |
|
|
1399 | break; |
|
|
1400 | } |
|
|
1401 | |
|
|
1402 | ent = dents + dentoffs; |
|
|
1403 | |
|
|
1404 | ent->nameofs = namesoffs; /* rather dirtily we store the offset in the pointer */ |
|
|
1405 | ent->namelen = len - 1; |
|
|
1406 | ent->inode = D_INO (entp); |
|
|
1407 | |
|
|
1408 | inode_bits |= ent->inode; |
|
|
1409 | |
|
|
1410 | switch (D_TYPE (entp)) |
|
|
1411 | { |
|
|
1412 | default: |
|
|
1413 | ent->type = EIO_DT_UNKNOWN; |
|
|
1414 | flags |= EIO_READDIR_FOUND_UNKNOWN; |
|
|
1415 | break; |
|
|
1416 | |
|
|
1417 | #ifdef DT_FIFO |
|
|
1418 | case DT_FIFO: ent->type = EIO_DT_FIFO; break; |
|
|
1419 | #endif |
|
|
1420 | #ifdef DT_CHR |
|
|
1421 | case DT_CHR: ent->type = EIO_DT_CHR; break; |
|
|
1422 | #endif |
|
|
1423 | #ifdef DT_MPC |
|
|
1424 | case DT_MPC: ent->type = EIO_DT_MPC; break; |
|
|
1425 | #endif |
|
|
1426 | #ifdef DT_DIR |
|
|
1427 | case DT_DIR: ent->type = EIO_DT_DIR; break; |
|
|
1428 | #endif |
|
|
1429 | #ifdef DT_NAM |
|
|
1430 | case DT_NAM: ent->type = EIO_DT_NAM; break; |
|
|
1431 | #endif |
|
|
1432 | #ifdef DT_BLK |
|
|
1433 | case DT_BLK: ent->type = EIO_DT_BLK; break; |
|
|
1434 | #endif |
|
|
1435 | #ifdef DT_MPB |
|
|
1436 | case DT_MPB: ent->type = EIO_DT_MPB; break; |
|
|
1437 | #endif |
|
|
1438 | #ifdef DT_REG |
|
|
1439 | case DT_REG: ent->type = EIO_DT_REG; break; |
|
|
1440 | #endif |
|
|
1441 | #ifdef DT_NWK |
|
|
1442 | case DT_NWK: ent->type = EIO_DT_NWK; break; |
|
|
1443 | #endif |
|
|
1444 | #ifdef DT_CMP |
|
|
1445 | case DT_CMP: ent->type = EIO_DT_CMP; break; |
|
|
1446 | #endif |
|
|
1447 | #ifdef DT_LNK |
|
|
1448 | case DT_LNK: ent->type = EIO_DT_LNK; break; |
|
|
1449 | #endif |
|
|
1450 | #ifdef DT_SOCK |
|
|
1451 | case DT_SOCK: ent->type = EIO_DT_SOCK; break; |
|
|
1452 | #endif |
|
|
1453 | #ifdef DT_DOOR |
|
|
1454 | case DT_DOOR: ent->type = EIO_DT_DOOR; break; |
|
|
1455 | #endif |
|
|
1456 | #ifdef DT_WHT |
|
|
1457 | case DT_WHT: ent->type = EIO_DT_WHT; break; |
|
|
1458 | #endif |
|
|
1459 | } |
|
|
1460 | |
|
|
1461 | ent->score = 7; |
|
|
1462 | |
|
|
1463 | if (flags & EIO_READDIR_DIRS_FIRST) |
|
|
1464 | { |
|
|
1465 | if (ent->type == EIO_DT_UNKNOWN) |
|
|
1466 | { |
|
|
1467 | if (*name == '.') /* leading dots are likely directories, and, in any case, rare */ |
|
|
1468 | ent->score = 1; |
|
|
1469 | else if (!strchr (name, '.')) /* absense of dots indicate likely dirs */ |
|
|
1470 | ent->score = len <= 2 ? 4 - len : len <= 4 ? 4 : len <= 7 ? 5 : 6; /* shorter == more likely dir, but avoid too many classes */ |
|
|
1471 | } |
|
|
1472 | else if (ent->type == EIO_DT_DIR) |
|
|
1473 | ent->score = 0; |
|
|
1474 | } |
|
|
1475 | } |
|
|
1476 | |
|
|
1477 | namesoffs += len; |
1979 | namesoffs += len; |
1478 | ++dentoffs; |
1980 | ++dentoffs; |
1479 | } |
1981 | } |
1480 | |
1982 | |
1481 | if (EIO_CANCELLED (req)) |
1983 | if (EIO_CANCELLED (req)) |
1482 | { |
1984 | { |
1483 | errno = ECANCELED; |
1985 | errno = ECANCELED; |
1484 | break; |
1986 | break; |
1485 | } |
1987 | } |
|
|
1988 | |
|
|
1989 | #ifdef _WIN32 |
|
|
1990 | if (!FindNextFile (dirp, &entp)) |
|
|
1991 | { |
|
|
1992 | FindClose (dirp); |
|
|
1993 | dirp = 0; |
1486 | } |
1994 | } |
|
|
1995 | #endif |
|
|
1996 | } |
1487 | } |
1997 | } |
1488 | |
1998 | |
1489 | #ifdef PAGESIZE |
1999 | /*****************************************************************************/ |
1490 | # define eio_pagesize() PAGESIZE |
2000 | /* working directory stuff */ |
1491 | #else |
2001 | /* various deficiencies in the posix 2008 api force us to */ |
1492 | static intptr_t |
2002 | /* keep the absolute path in string form at all times */ |
1493 | eio_pagesize (void) |
2003 | /* fuck yeah. */ |
1494 | { |
|
|
1495 | static intptr_t page; |
|
|
1496 | |
2004 | |
1497 | if (!page) |
2005 | #if !HAVE_AT |
1498 | page = sysconf (_SC_PAGESIZE); |
|
|
1499 | |
2006 | |
|
|
2007 | /* a bit like realpath, but usually faster because it doesn'T have to return */ |
|
|
2008 | /* an absolute or canonical path */ |
|
|
2009 | static const char * |
|
|
2010 | wd_expand (struct tmpbuf *tmpbuf, eio_wd wd, const char *path) |
|
|
2011 | { |
|
|
2012 | if (!wd || *path == '/') |
|
|
2013 | return path; |
|
|
2014 | |
|
|
2015 | if (path [0] == '.' && !path [1]) |
|
|
2016 | return wd->str; |
|
|
2017 | |
|
|
2018 | { |
|
|
2019 | int l1 = wd->len; |
|
|
2020 | int l2 = strlen (path); |
|
|
2021 | |
|
|
2022 | char *res = tmpbuf_get (tmpbuf, l1 + l2 + 2); |
|
|
2023 | |
|
|
2024 | memcpy (res, wd->str, l1); |
|
|
2025 | res [l1] = '/'; |
|
|
2026 | memcpy (res + l1 + 1, path, l2 + 1); |
|
|
2027 | |
|
|
2028 | return res; |
|
|
2029 | } |
|
|
2030 | } |
|
|
2031 | |
|
|
2032 | #endif |
|
|
2033 | |
|
|
2034 | static eio_wd |
|
|
2035 | eio__wd_open_sync (struct tmpbuf *tmpbuf, eio_wd wd, const char *path) |
|
|
2036 | { |
|
|
2037 | int fd; |
|
|
2038 | eio_wd res; |
|
|
2039 | int len = eio__realpath (tmpbuf, wd, path); |
|
|
2040 | |
|
|
2041 | if (len < 0) |
|
|
2042 | return EIO_INVALID_WD; |
|
|
2043 | |
|
|
2044 | #if HAVE_AT |
|
|
2045 | fd = openat (WD2FD (wd), path, O_CLOEXEC | O_SEARCH | O_DIRECTORY); |
|
|
2046 | |
|
|
2047 | if (fd < 0) |
|
|
2048 | return EIO_INVALID_WD; |
|
|
2049 | #endif |
|
|
2050 | |
|
|
2051 | res = malloc (sizeof (*res) + len); /* one extra 0-byte */ |
|
|
2052 | |
|
|
2053 | #if HAVE_AT |
|
|
2054 | res->fd = fd; |
|
|
2055 | #endif |
|
|
2056 | |
|
|
2057 | res->len = len; |
|
|
2058 | memcpy (res->str, tmpbuf->ptr, len); |
|
|
2059 | res->str [len] = 0; |
|
|
2060 | |
1500 | return page; |
2061 | return res; |
1501 | } |
2062 | } |
1502 | #endif |
|
|
1503 | |
2063 | |
1504 | static void |
2064 | eio_wd |
1505 | eio_page_align (void **addr, size_t *length) |
2065 | eio_wd_open_sync (eio_wd wd, const char *path) |
1506 | { |
2066 | { |
1507 | intptr_t mask = eio_pagesize () - 1; |
2067 | struct tmpbuf tmpbuf = { 0 }; |
|
|
2068 | wd = eio__wd_open_sync (&tmpbuf, wd, path); |
|
|
2069 | free (tmpbuf.ptr); |
1508 | |
2070 | |
1509 | /* round down addr */ |
2071 | return wd; |
1510 | intptr_t adj = mask & (intptr_t)*addr; |
|
|
1511 | |
|
|
1512 | *addr = (void *)((intptr_t)*addr - adj); |
|
|
1513 | *length += adj; |
|
|
1514 | |
|
|
1515 | /* round up length */ |
|
|
1516 | *length = (*length + mask) & ~mask; |
|
|
1517 | } |
2072 | } |
1518 | |
2073 | |
1519 | #if !_POSIX_MEMLOCK |
2074 | void |
1520 | # define eio__mlockall(a) ((errno = ENOSYS), -1) |
2075 | eio_wd_close_sync (eio_wd wd) |
1521 | #else |
2076 | { |
|
|
2077 | if (wd != EIO_INVALID_WD && wd != EIO_CWD) |
|
|
2078 | { |
|
|
2079 | #if HAVE_AT |
|
|
2080 | close (wd->fd); |
|
|
2081 | #endif |
|
|
2082 | free (wd); |
|
|
2083 | } |
|
|
2084 | } |
|
|
2085 | |
|
|
2086 | #if HAVE_AT |
|
|
2087 | |
|
|
2088 | /* they forgot these */ |
1522 | |
2089 | |
1523 | static int |
2090 | static int |
1524 | eio__mlockall (int flags) |
2091 | eio__truncateat (int dirfd, const char *path, off_t length) |
1525 | { |
2092 | { |
1526 | #if __GLIBC__ == 2 && __GLIBC_MINOR__ <= 7 |
2093 | int fd = openat (dirfd, path, O_WRONLY | O_CLOEXEC); |
1527 | extern int mallopt (int, int); |
2094 | int res; |
1528 | mallopt (-6, 238); /* http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=473812 */ |
|
|
1529 | #endif |
|
|
1530 | |
2095 | |
1531 | if (EIO_MCL_CURRENT != MCL_CURRENT |
2096 | if (fd < 0) |
1532 | || EIO_MCL_FUTURE != MCL_FUTURE) |
2097 | return fd; |
1533 | { |
|
|
1534 | flags = 0 |
|
|
1535 | | (flags & EIO_MCL_CURRENT ? MCL_CURRENT : 0) |
|
|
1536 | | (flags & EIO_MCL_FUTURE ? MCL_FUTURE : 0); |
|
|
1537 | } |
|
|
1538 | |
2098 | |
1539 | return mlockall (flags); |
2099 | res = ftruncate (fd, length); |
|
|
2100 | close (fd); |
|
|
2101 | return res; |
1540 | } |
2102 | } |
1541 | #endif |
|
|
1542 | |
|
|
1543 | #if !_POSIX_MEMLOCK_RANGE |
|
|
1544 | # define eio__mlock(a,b) ((errno = ENOSYS), -1) |
|
|
1545 | #else |
|
|
1546 | |
2103 | |
1547 | static int |
2104 | static int |
1548 | eio__mlock (void *addr, size_t length) |
2105 | eio__statvfsat (int dirfd, const char *path, struct statvfs *buf) |
1549 | { |
2106 | { |
1550 | eio_page_align (&addr, &length); |
2107 | int fd = openat (dirfd, path, O_SEARCH | O_CLOEXEC); |
|
|
2108 | int res; |
1551 | |
2109 | |
1552 | return mlock (addr, length); |
2110 | if (fd < 0) |
1553 | } |
2111 | return fd; |
1554 | |
2112 | |
1555 | #endif |
2113 | res = fstatvfs (fd, buf); |
1556 | |
2114 | close (fd); |
1557 | #if !(_POSIX_MAPPED_FILES && _POSIX_SYNCHRONIZED_IO) |
|
|
1558 | # define eio__msync(a,b,c) ((errno = ENOSYS), -1) |
|
|
1559 | #else |
|
|
1560 | |
|
|
1561 | static int |
|
|
1562 | eio__msync (void *mem, size_t len, int flags) |
|
|
1563 | { |
|
|
1564 | eio_page_align (&mem, &len); |
|
|
1565 | |
|
|
1566 | if (EIO_MS_ASYNC != MS_SYNC |
|
|
1567 | || EIO_MS_INVALIDATE != MS_INVALIDATE |
|
|
1568 | || EIO_MS_SYNC != MS_SYNC) |
|
|
1569 | { |
|
|
1570 | flags = 0 |
|
|
1571 | | (flags & EIO_MS_ASYNC ? MS_ASYNC : 0) |
|
|
1572 | | (flags & EIO_MS_INVALIDATE ? MS_INVALIDATE : 0) |
|
|
1573 | | (flags & EIO_MS_SYNC ? MS_SYNC : 0); |
|
|
1574 | } |
|
|
1575 | |
|
|
1576 | return msync (mem, len, flags); |
|
|
1577 | } |
|
|
1578 | |
|
|
1579 | #endif |
|
|
1580 | |
|
|
1581 | static int |
|
|
1582 | eio__mtouch (eio_req *req) |
|
|
1583 | { |
|
|
1584 | void *mem = req->ptr2; |
|
|
1585 | size_t len = req->size; |
|
|
1586 | int flags = req->int1; |
|
|
1587 | |
|
|
1588 | eio_page_align (&mem, &len); |
|
|
1589 | |
|
|
1590 | { |
|
|
1591 | intptr_t addr = (intptr_t)mem; |
|
|
1592 | intptr_t end = addr + len; |
|
|
1593 | intptr_t page = eio_pagesize (); |
|
|
1594 | |
|
|
1595 | if (addr < end) |
|
|
1596 | if (flags & EIO_MT_MODIFY) /* modify */ |
|
|
1597 | do { *((volatile sig_atomic_t *)addr) |= 0; } while ((addr += page) < len && !EIO_CANCELLED (req)); |
|
|
1598 | else |
|
|
1599 | do { *((volatile sig_atomic_t *)addr) ; } while ((addr += page) < len && !EIO_CANCELLED (req)); |
|
|
1600 | } |
|
|
1601 | |
|
|
1602 | return 0; |
2115 | return res; |
|
|
2116 | |
1603 | } |
2117 | } |
|
|
2118 | |
|
|
2119 | #endif |
1604 | |
2120 | |
1605 | /*****************************************************************************/ |
2121 | /*****************************************************************************/ |
1606 | |
2122 | |
1607 | #define ALLOC(len) \ |
2123 | #define ALLOC(len) \ |
1608 | if (!req->ptr2) \ |
2124 | if (!req->ptr2) \ |
… | |
… | |
1617 | req->result = -1; \ |
2133 | req->result = -1; \ |
1618 | break; \ |
2134 | break; \ |
1619 | } \ |
2135 | } \ |
1620 | } |
2136 | } |
1621 | |
2137 | |
|
|
2138 | static void ecb_noinline ecb_cold |
|
|
2139 | etp_proc_init (void) |
|
|
2140 | { |
|
|
2141 | #if HAVE_PRCTL_SET_NAME |
|
|
2142 | /* provide a more sensible "thread name" */ |
|
|
2143 | char name[16 + 1]; |
|
|
2144 | const int namelen = sizeof (name) - 1; |
|
|
2145 | int len; |
|
|
2146 | |
|
|
2147 | prctl (PR_GET_NAME, (unsigned long)name, 0, 0, 0); |
|
|
2148 | name [namelen] = 0; |
|
|
2149 | len = strlen (name); |
|
|
2150 | strcpy (name + (len <= namelen - 4 ? len : namelen - 4), "/eio"); |
|
|
2151 | prctl (PR_SET_NAME, (unsigned long)name, 0, 0, 0); |
|
|
2152 | #endif |
|
|
2153 | } |
|
|
2154 | |
1622 | X_THREAD_PROC (etp_proc) |
2155 | X_THREAD_PROC (etp_proc) |
1623 | { |
2156 | { |
1624 | ETP_REQ *req; |
2157 | ETP_REQ *req; |
1625 | struct timespec ts; |
2158 | struct timespec ts; |
1626 | etp_worker *self = (etp_worker *)thr_arg; |
2159 | etp_worker *self = (etp_worker *)thr_arg; |
1627 | |
2160 | |
|
|
2161 | etp_proc_init (); |
|
|
2162 | |
1628 | /* try to distribute timeouts somewhat randomly */ |
2163 | /* try to distribute timeouts somewhat evenly */ |
1629 | ts.tv_nsec = ((unsigned long)self & 1023UL) * (1000000000UL / 1024UL); |
2164 | ts.tv_nsec = ((unsigned long)self & 1023UL) * (1000000000UL / 1024UL); |
1630 | |
2165 | |
1631 | for (;;) |
2166 | for (;;) |
1632 | { |
2167 | { |
|
|
2168 | ts.tv_sec = 0; |
|
|
2169 | |
1633 | X_LOCK (reqlock); |
2170 | X_LOCK (reqlock); |
1634 | |
2171 | |
1635 | for (;;) |
2172 | for (;;) |
1636 | { |
2173 | { |
1637 | self->req = req = reqq_shift (&req_queue); |
2174 | req = reqq_shift (&req_queue); |
1638 | |
2175 | |
1639 | if (req) |
2176 | if (req) |
1640 | break; |
2177 | break; |
1641 | |
2178 | |
|
|
2179 | if (ts.tv_sec == 1) /* no request, but timeout detected, let's quit */ |
|
|
2180 | { |
|
|
2181 | X_UNLOCK (reqlock); |
|
|
2182 | X_LOCK (wrklock); |
|
|
2183 | --started; |
|
|
2184 | X_UNLOCK (wrklock); |
|
|
2185 | goto quit; |
|
|
2186 | } |
|
|
2187 | |
1642 | ++idle; |
2188 | ++idle; |
1643 | |
2189 | |
1644 | ts.tv_sec = time (0) + idle_timeout; |
2190 | if (idle <= max_idle) |
1645 | if (X_COND_TIMEDWAIT (reqwait, reqlock, ts) == ETIMEDOUT) |
2191 | /* we are allowed to idle, so do so without any timeout */ |
|
|
2192 | X_COND_WAIT (reqwait, reqlock); |
|
|
2193 | else |
1646 | { |
2194 | { |
1647 | if (idle > max_idle) |
2195 | /* initialise timeout once */ |
1648 | { |
2196 | if (!ts.tv_sec) |
1649 | --idle; |
2197 | ts.tv_sec = time (0) + idle_timeout; |
1650 | X_UNLOCK (reqlock); |
|
|
1651 | X_LOCK (wrklock); |
|
|
1652 | --started; |
|
|
1653 | X_UNLOCK (wrklock); |
|
|
1654 | goto quit; |
|
|
1655 | } |
|
|
1656 | |
2198 | |
1657 | /* we are allowed to idle, so do so without any timeout */ |
|
|
1658 | X_COND_WAIT (reqwait, reqlock); |
2199 | if (X_COND_TIMEDWAIT (reqwait, reqlock, ts) == ETIMEDOUT) |
|
|
2200 | ts.tv_sec = 1; /* assuming this is not a value computed above.,.. */ |
1659 | } |
2201 | } |
1660 | |
2202 | |
1661 | --idle; |
2203 | --idle; |
1662 | } |
2204 | } |
1663 | |
2205 | |
… | |
… | |
1666 | X_UNLOCK (reqlock); |
2208 | X_UNLOCK (reqlock); |
1667 | |
2209 | |
1668 | if (req->type < 0) |
2210 | if (req->type < 0) |
1669 | goto quit; |
2211 | goto quit; |
1670 | |
2212 | |
1671 | if (!EIO_CANCELLED (req)) |
|
|
1672 | ETP_EXECUTE (self, req); |
2213 | ETP_EXECUTE (self, req); |
1673 | |
2214 | |
1674 | X_LOCK (reslock); |
2215 | X_LOCK (reslock); |
1675 | |
2216 | |
1676 | ++npending; |
2217 | ++npending; |
1677 | |
2218 | |
1678 | if (!reqq_push (&res_queue, req) && want_poll_cb) |
2219 | if (!reqq_push (&res_queue, req) && want_poll_cb) |
1679 | want_poll_cb (); |
2220 | want_poll_cb (); |
1680 | |
2221 | |
1681 | self->req = 0; |
|
|
1682 | etp_worker_clear (self); |
2222 | etp_worker_clear (self); |
1683 | |
2223 | |
1684 | X_UNLOCK (reslock); |
2224 | X_UNLOCK (reslock); |
1685 | } |
2225 | } |
1686 | |
2226 | |
1687 | quit: |
2227 | quit: |
|
|
2228 | free (req); |
|
|
2229 | |
1688 | X_LOCK (wrklock); |
2230 | X_LOCK (wrklock); |
1689 | etp_worker_free (self); |
2231 | etp_worker_free (self); |
1690 | X_UNLOCK (wrklock); |
2232 | X_UNLOCK (wrklock); |
1691 | |
2233 | |
1692 | return 0; |
2234 | return 0; |
… | |
… | |
1695 | /*****************************************************************************/ |
2237 | /*****************************************************************************/ |
1696 | |
2238 | |
1697 | int ecb_cold |
2239 | int ecb_cold |
1698 | eio_init (void (*want_poll)(void), void (*done_poll)(void)) |
2240 | eio_init (void (*want_poll)(void), void (*done_poll)(void)) |
1699 | { |
2241 | { |
|
|
2242 | #if !HAVE_PREADWRITE |
|
|
2243 | X_MUTEX_CREATE (preadwritelock); |
|
|
2244 | #endif |
|
|
2245 | |
1700 | return etp_init (want_poll, done_poll); |
2246 | return etp_init (want_poll, done_poll); |
1701 | } |
2247 | } |
1702 | |
2248 | |
1703 | ecb_inline void |
2249 | ecb_inline void |
1704 | eio_api_destroy (eio_req *req) |
2250 | eio_api_destroy (eio_req *req) |
… | |
… | |
1731 | } |
2277 | } |
1732 | |
2278 | |
1733 | static void |
2279 | static void |
1734 | eio_execute (etp_worker *self, eio_req *req) |
2280 | eio_execute (etp_worker *self, eio_req *req) |
1735 | { |
2281 | { |
|
|
2282 | #if HAVE_AT |
|
|
2283 | int dirfd; |
|
|
2284 | #else |
|
|
2285 | const char *path; |
|
|
2286 | #endif |
|
|
2287 | |
|
|
2288 | if (ecb_expect_false (EIO_CANCELLED (req))) |
|
|
2289 | { |
|
|
2290 | req->result = -1; |
|
|
2291 | req->errorno = ECANCELED; |
|
|
2292 | return; |
|
|
2293 | } |
|
|
2294 | |
|
|
2295 | if (ecb_expect_false (req->wd == EIO_INVALID_WD)) |
|
|
2296 | { |
|
|
2297 | req->result = -1; |
|
|
2298 | req->errorno = ENOENT; |
|
|
2299 | return; |
|
|
2300 | } |
|
|
2301 | |
|
|
2302 | if (req->type >= EIO_OPEN) |
|
|
2303 | { |
|
|
2304 | #if HAVE_AT |
|
|
2305 | dirfd = WD2FD (req->wd); |
|
|
2306 | #else |
|
|
2307 | path = wd_expand (&self->tmpbuf, req->wd, req->ptr1); |
|
|
2308 | #endif |
|
|
2309 | } |
|
|
2310 | |
1736 | switch (req->type) |
2311 | switch (req->type) |
1737 | { |
2312 | { |
|
|
2313 | case EIO_WD_OPEN: req->wd = eio__wd_open_sync (&self->tmpbuf, req->wd, req->ptr1); |
|
|
2314 | req->result = req->wd == EIO_INVALID_WD ? -1 : 0; |
|
|
2315 | break; |
|
|
2316 | case EIO_WD_CLOSE: req->result = 0; |
|
|
2317 | eio_wd_close_sync (req->wd); break; |
|
|
2318 | |
1738 | case EIO_READ: ALLOC (req->size); |
2319 | case EIO_READ: ALLOC (req->size); |
1739 | req->result = req->offs >= 0 |
2320 | req->result = req->offs >= 0 |
1740 | ? pread (req->int1, req->ptr2, req->size, req->offs) |
2321 | ? pread (req->int1, req->ptr2, req->size, req->offs) |
1741 | : read (req->int1, req->ptr2, req->size); break; |
2322 | : read (req->int1, req->ptr2, req->size); break; |
1742 | case EIO_WRITE: req->result = req->offs >= 0 |
2323 | case EIO_WRITE: req->result = req->offs >= 0 |
1743 | ? pwrite (req->int1, req->ptr2, req->size, req->offs) |
2324 | ? pwrite (req->int1, req->ptr2, req->size, req->offs) |
1744 | : write (req->int1, req->ptr2, req->size); break; |
2325 | : write (req->int1, req->ptr2, req->size); break; |
1745 | |
2326 | |
1746 | case EIO_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break; |
2327 | case EIO_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break; |
1747 | case EIO_SENDFILE: req->result = eio__sendfile (req->int1, req->int2, req->offs, req->size, self); break; |
2328 | case EIO_SENDFILE: req->result = eio__sendfile (req->int1, req->int2, req->offs, req->size); break; |
|
|
2329 | |
|
|
2330 | #if HAVE_AT |
1748 | |
2331 | |
1749 | case EIO_STAT: ALLOC (sizeof (EIO_STRUCT_STAT)); |
2332 | case EIO_STAT: ALLOC (sizeof (EIO_STRUCT_STAT)); |
1750 | req->result = stat (req->ptr1, (EIO_STRUCT_STAT *)req->ptr2); break; |
2333 | req->result = fstatat (dirfd, req->ptr1, (EIO_STRUCT_STAT *)req->ptr2, 0); break; |
1751 | case EIO_LSTAT: ALLOC (sizeof (EIO_STRUCT_STAT)); |
2334 | case EIO_LSTAT: ALLOC (sizeof (EIO_STRUCT_STAT)); |
|
|
2335 | req->result = fstatat (dirfd, req->ptr1, (EIO_STRUCT_STAT *)req->ptr2, AT_SYMLINK_NOFOLLOW); break; |
|
|
2336 | case EIO_CHOWN: req->result = fchownat (dirfd, req->ptr1, req->int2, req->int3, 0); break; |
|
|
2337 | case EIO_CHMOD: req->result = fchmodat (dirfd, req->ptr1, (mode_t)req->int2, 0); break; |
|
|
2338 | case EIO_TRUNCATE: req->result = eio__truncateat (dirfd, req->ptr1, req->offs); break; |
|
|
2339 | case EIO_OPEN: req->result = openat (dirfd, req->ptr1, req->int1, (mode_t)req->int2); break; |
|
|
2340 | |
|
|
2341 | case EIO_UNLINK: req->result = unlinkat (dirfd, req->ptr1, 0); break; |
|
|
2342 | case EIO_RMDIR: req->result = unlinkat (dirfd, req->ptr1, AT_REMOVEDIR); break; |
|
|
2343 | case EIO_MKDIR: req->result = mkdirat (dirfd, req->ptr1, (mode_t)req->int2); break; |
|
|
2344 | case EIO_RENAME: req->result = renameat (dirfd, req->ptr1, WD2FD ((eio_wd)req->int3), req->ptr2); break; |
|
|
2345 | case EIO_LINK: req->result = linkat (dirfd, req->ptr1, WD2FD ((eio_wd)req->int3), req->ptr2, 0); break; |
|
|
2346 | case EIO_SYMLINK: req->result = symlinkat (req->ptr1, dirfd, req->ptr2); break; |
|
|
2347 | case EIO_MKNOD: req->result = mknodat (dirfd, req->ptr1, (mode_t)req->int2, (dev_t)req->offs); break; |
|
|
2348 | case EIO_READLINK: ALLOC (PATH_MAX); |
|
|
2349 | req->result = readlinkat (dirfd, req->ptr1, req->ptr2, PATH_MAX); break; |
|
|
2350 | case EIO_STATVFS: ALLOC (sizeof (EIO_STRUCT_STATVFS)); |
|
|
2351 | req->result = eio__statvfsat (dirfd, req->ptr1, (EIO_STRUCT_STATVFS *)req->ptr2); break; |
|
|
2352 | case EIO_UTIME: |
|
|
2353 | case EIO_FUTIME: |
|
|
2354 | { |
|
|
2355 | struct timespec ts[2]; |
|
|
2356 | struct timespec *times; |
|
|
2357 | |
|
|
2358 | if (req->nv1 != -1. || req->nv2 != -1.) |
|
|
2359 | { |
|
|
2360 | ts[0].tv_sec = req->nv1; |
|
|
2361 | ts[0].tv_nsec = (req->nv1 - ts[0].tv_sec) * 1e9; |
|
|
2362 | ts[1].tv_sec = req->nv2; |
|
|
2363 | ts[1].tv_nsec = (req->nv2 - ts[1].tv_sec) * 1e9; |
|
|
2364 | |
|
|
2365 | times = ts; |
|
|
2366 | } |
|
|
2367 | else |
|
|
2368 | times = 0; |
|
|
2369 | |
|
|
2370 | req->result = req->type == EIO_FUTIME |
|
|
2371 | ? futimens (req->int1, times) |
|
|
2372 | : utimensat (dirfd, req->ptr1, times, 0); |
|
|
2373 | } |
|
|
2374 | break; |
|
|
2375 | |
|
|
2376 | #else |
|
|
2377 | |
|
|
2378 | case EIO_STAT: ALLOC (sizeof (EIO_STRUCT_STAT)); |
|
|
2379 | req->result = stat (path , (EIO_STRUCT_STAT *)req->ptr2); break; |
|
|
2380 | case EIO_LSTAT: ALLOC (sizeof (EIO_STRUCT_STAT)); |
1752 | req->result = lstat (req->ptr1, (EIO_STRUCT_STAT *)req->ptr2); break; |
2381 | req->result = lstat (path , (EIO_STRUCT_STAT *)req->ptr2); break; |
|
|
2382 | case EIO_CHOWN: req->result = chown (path , req->int2, req->int3); break; |
|
|
2383 | case EIO_CHMOD: req->result = chmod (path , (mode_t)req->int2); break; |
|
|
2384 | case EIO_TRUNCATE: req->result = truncate (path , req->offs); break; |
|
|
2385 | case EIO_OPEN: req->result = open (path , req->int1, (mode_t)req->int2); break; |
|
|
2386 | |
|
|
2387 | case EIO_UNLINK: req->result = unlink (path ); break; |
|
|
2388 | case EIO_RMDIR: req->result = rmdir (path ); break; |
|
|
2389 | case EIO_MKDIR: req->result = mkdir (path , (mode_t)req->int2); break; |
|
|
2390 | case EIO_RENAME: req->result = rename (path , req->ptr2); break; |
|
|
2391 | case EIO_LINK: req->result = link (path , req->ptr2); break; |
|
|
2392 | case EIO_SYMLINK: req->result = symlink (path , req->ptr2); break; |
|
|
2393 | case EIO_MKNOD: req->result = mknod (path , (mode_t)req->int2, (dev_t)req->offs); break; |
|
|
2394 | case EIO_READLINK: ALLOC (PATH_MAX); |
|
|
2395 | req->result = readlink (path, req->ptr2, PATH_MAX); break; |
|
|
2396 | case EIO_STATVFS: ALLOC (sizeof (EIO_STRUCT_STATVFS)); |
|
|
2397 | req->result = statvfs (path , (EIO_STRUCT_STATVFS *)req->ptr2); break; |
|
|
2398 | |
|
|
2399 | case EIO_UTIME: |
|
|
2400 | case EIO_FUTIME: |
|
|
2401 | { |
|
|
2402 | struct timeval tv[2]; |
|
|
2403 | struct timeval *times; |
|
|
2404 | |
|
|
2405 | if (req->nv1 != -1. || req->nv2 != -1.) |
|
|
2406 | { |
|
|
2407 | tv[0].tv_sec = req->nv1; |
|
|
2408 | tv[0].tv_usec = (req->nv1 - tv[0].tv_sec) * 1e6; |
|
|
2409 | tv[1].tv_sec = req->nv2; |
|
|
2410 | tv[1].tv_usec = (req->nv2 - tv[1].tv_sec) * 1e6; |
|
|
2411 | |
|
|
2412 | times = tv; |
|
|
2413 | } |
|
|
2414 | else |
|
|
2415 | times = 0; |
|
|
2416 | |
|
|
2417 | req->result = req->type == EIO_FUTIME |
|
|
2418 | ? futimes (req->int1, times) |
|
|
2419 | : utimes (req->ptr1, times); |
|
|
2420 | } |
|
|
2421 | break; |
|
|
2422 | |
|
|
2423 | #endif |
|
|
2424 | |
|
|
2425 | case EIO_REALPATH: if (0 <= (req->result = eio__realpath (&self->tmpbuf, req->wd, req->ptr1))) |
|
|
2426 | { |
|
|
2427 | ALLOC (req->result); |
|
|
2428 | memcpy (req->ptr2, self->tmpbuf.ptr, req->result); |
|
|
2429 | } |
|
|
2430 | break; |
|
|
2431 | |
1753 | case EIO_FSTAT: ALLOC (sizeof (EIO_STRUCT_STAT)); |
2432 | case EIO_FSTAT: ALLOC (sizeof (EIO_STRUCT_STAT)); |
1754 | req->result = fstat (req->int1, (EIO_STRUCT_STAT *)req->ptr2); break; |
2433 | req->result = fstat (req->int1, (EIO_STRUCT_STAT *)req->ptr2); break; |
1755 | |
2434 | |
1756 | case EIO_STATVFS: ALLOC (sizeof (EIO_STRUCT_STATVFS)); |
|
|
1757 | req->result = statvfs (req->ptr1, (EIO_STRUCT_STATVFS *)req->ptr2); break; |
|
|
1758 | case EIO_FSTATVFS: ALLOC (sizeof (EIO_STRUCT_STATVFS)); |
2435 | case EIO_FSTATVFS: ALLOC (sizeof (EIO_STRUCT_STATVFS)); |
1759 | req->result = fstatvfs (req->int1, (EIO_STRUCT_STATVFS *)req->ptr2); break; |
2436 | req->result = fstatvfs (req->int1, (EIO_STRUCT_STATVFS *)req->ptr2); break; |
1760 | |
2437 | |
1761 | case EIO_CHOWN: req->result = chown (req->ptr1, req->int2, req->int3); break; |
|
|
1762 | case EIO_FCHOWN: req->result = fchown (req->int1, req->int2, req->int3); break; |
2438 | case EIO_FCHOWN: req->result = fchown (req->int1, req->int2, req->int3); break; |
1763 | case EIO_CHMOD: req->result = chmod (req->ptr1, (mode_t)req->int2); break; |
|
|
1764 | case EIO_FCHMOD: req->result = fchmod (req->int1, (mode_t)req->int2); break; |
2439 | case EIO_FCHMOD: req->result = fchmod (req->int1, (mode_t)req->int2); break; |
1765 | case EIO_TRUNCATE: req->result = truncate (req->ptr1, req->offs); break; |
|
|
1766 | case EIO_FTRUNCATE: req->result = ftruncate (req->int1, req->offs); break; |
2440 | case EIO_FTRUNCATE: req->result = ftruncate (req->int1, req->offs); break; |
1767 | |
2441 | |
1768 | case EIO_OPEN: req->result = open (req->ptr1, req->int1, (mode_t)req->int2); break; |
|
|
1769 | case EIO_CLOSE: req->result = close (req->int1); break; |
2442 | case EIO_CLOSE: req->result = close (req->int1); break; |
1770 | case EIO_DUP2: req->result = dup2 (req->int1, req->int2); break; |
2443 | case EIO_DUP2: req->result = dup2 (req->int1, req->int2); break; |
1771 | case EIO_UNLINK: req->result = unlink (req->ptr1); break; |
|
|
1772 | case EIO_RMDIR: req->result = rmdir (req->ptr1); break; |
|
|
1773 | case EIO_MKDIR: req->result = mkdir (req->ptr1, (mode_t)req->int2); break; |
|
|
1774 | case EIO_RENAME: req->result = rename (req->ptr1, req->ptr2); break; |
|
|
1775 | case EIO_LINK: req->result = link (req->ptr1, req->ptr2); break; |
|
|
1776 | case EIO_SYMLINK: req->result = symlink (req->ptr1, req->ptr2); break; |
|
|
1777 | case EIO_MKNOD: req->result = mknod (req->ptr1, (mode_t)req->int2, (dev_t)req->offs); break; |
|
|
1778 | |
|
|
1779 | case EIO_READLINK: ALLOC (PATH_MAX); |
|
|
1780 | req->result = readlink (req->ptr1, req->ptr2, PATH_MAX); break; |
|
|
1781 | |
|
|
1782 | case EIO_SYNC: req->result = 0; sync (); break; |
2444 | case EIO_SYNC: req->result = 0; sync (); break; |
1783 | case EIO_FSYNC: req->result = fsync (req->int1); break; |
2445 | case EIO_FSYNC: req->result = fsync (req->int1); break; |
1784 | case EIO_FDATASYNC: req->result = fdatasync (req->int1); break; |
2446 | case EIO_FDATASYNC: req->result = fdatasync (req->int1); break; |
|
|
2447 | case EIO_SYNCFS: req->result = eio__syncfs (req->int1); break; |
|
|
2448 | case EIO_SYNC_FILE_RANGE: req->result = eio__sync_file_range (req->int1, req->offs, req->size, req->int2); break; |
1785 | case EIO_MSYNC: req->result = eio__msync (req->ptr2, req->size, req->int1); break; |
2449 | case EIO_MSYNC: req->result = eio__msync (req->ptr2, req->size, req->int1); break; |
1786 | case EIO_MTOUCH: req->result = eio__mtouch (req); break; |
2450 | case EIO_MTOUCH: req->result = eio__mtouch (req); break; |
1787 | case EIO_MLOCK: req->result = eio__mlock (req->ptr2, req->size); break; |
2451 | case EIO_MLOCK: req->result = eio__mlock (req->ptr2, req->size); break; |
1788 | case EIO_MLOCKALL: req->result = eio__mlockall (req->int1); break; |
2452 | case EIO_MLOCKALL: req->result = eio__mlockall (req->int1); break; |
1789 | case EIO_SYNC_FILE_RANGE: req->result = eio__sync_file_range (req->int1, req->offs, req->size, req->int2); break; |
2453 | case EIO_FALLOCATE: req->result = eio__fallocate (req->int1, req->int2, req->offs, req->size); break; |
1790 | |
2454 | |
1791 | case EIO_READDIR: eio__scandir (req, self); break; |
2455 | case EIO_READDIR: eio__scandir (req, self); break; |
1792 | |
2456 | |
1793 | case EIO_BUSY: |
2457 | case EIO_BUSY: |
1794 | #ifdef _WIN32 |
2458 | #ifdef _WIN32 |
… | |
… | |
1803 | req->result = select (0, 0, 0, 0, &tv); |
2467 | req->result = select (0, 0, 0, 0, &tv); |
1804 | } |
2468 | } |
1805 | #endif |
2469 | #endif |
1806 | break; |
2470 | break; |
1807 | |
2471 | |
1808 | case EIO_UTIME: |
|
|
1809 | case EIO_FUTIME: |
|
|
1810 | { |
|
|
1811 | struct timeval tv[2]; |
|
|
1812 | struct timeval *times; |
|
|
1813 | |
|
|
1814 | if (req->nv1 != -1. || req->nv2 != -1.) |
|
|
1815 | { |
|
|
1816 | tv[0].tv_sec = req->nv1; |
|
|
1817 | tv[0].tv_usec = (req->nv1 - tv[0].tv_sec) * 1000000.; |
|
|
1818 | tv[1].tv_sec = req->nv2; |
|
|
1819 | tv[1].tv_usec = (req->nv2 - tv[1].tv_sec) * 1000000.; |
|
|
1820 | |
|
|
1821 | times = tv; |
|
|
1822 | } |
|
|
1823 | else |
|
|
1824 | times = 0; |
|
|
1825 | |
|
|
1826 | req->result = req->type == EIO_FUTIME |
|
|
1827 | ? futimes (req->int1, times) |
|
|
1828 | : utimes (req->ptr1, times); |
|
|
1829 | } |
|
|
1830 | break; |
|
|
1831 | |
|
|
1832 | case EIO_GROUP: |
2472 | case EIO_GROUP: |
1833 | abort (); /* handled in eio_request */ |
2473 | abort (); /* handled in eio_request */ |
1834 | |
2474 | |
1835 | case EIO_NOP: |
2475 | case EIO_NOP: |
1836 | req->result = 0; |
2476 | req->result = 0; |
… | |
… | |
1849 | req->errorno = errno; |
2489 | req->errorno = errno; |
1850 | } |
2490 | } |
1851 | |
2491 | |
1852 | #ifndef EIO_NO_WRAPPERS |
2492 | #ifndef EIO_NO_WRAPPERS |
1853 | |
2493 | |
|
|
2494 | eio_req *eio_wd_open (const char *path, int pri, eio_cb cb, void *data) |
|
|
2495 | { |
|
|
2496 | REQ (EIO_WD_OPEN); PATH; SEND; |
|
|
2497 | } |
|
|
2498 | |
|
|
2499 | eio_req *eio_wd_close (eio_wd wd, int pri, eio_cb cb, void *data) |
|
|
2500 | { |
|
|
2501 | REQ (EIO_WD_CLOSE); req->wd = wd; SEND; |
|
|
2502 | } |
|
|
2503 | |
1854 | eio_req *eio_nop (int pri, eio_cb cb, void *data) |
2504 | eio_req *eio_nop (int pri, eio_cb cb, void *data) |
1855 | { |
2505 | { |
1856 | REQ (EIO_NOP); SEND; |
2506 | REQ (EIO_NOP); SEND; |
1857 | } |
2507 | } |
1858 | |
2508 | |
… | |
… | |
1874 | eio_req *eio_msync (void *addr, size_t length, int flags, int pri, eio_cb cb, void *data) |
2524 | eio_req *eio_msync (void *addr, size_t length, int flags, int pri, eio_cb cb, void *data) |
1875 | { |
2525 | { |
1876 | REQ (EIO_MSYNC); req->ptr2 = addr; req->size = length; req->int1 = flags; SEND; |
2526 | REQ (EIO_MSYNC); req->ptr2 = addr; req->size = length; req->int1 = flags; SEND; |
1877 | } |
2527 | } |
1878 | |
2528 | |
|
|
2529 | eio_req *eio_fdatasync (int fd, int pri, eio_cb cb, void *data) |
|
|
2530 | { |
|
|
2531 | REQ (EIO_FDATASYNC); req->int1 = fd; SEND; |
|
|
2532 | } |
|
|
2533 | |
|
|
2534 | eio_req *eio_syncfs (int fd, int pri, eio_cb cb, void *data) |
|
|
2535 | { |
|
|
2536 | REQ (EIO_SYNCFS); req->int1 = fd; SEND; |
|
|
2537 | } |
|
|
2538 | |
|
|
2539 | eio_req *eio_sync_file_range (int fd, off_t offset, size_t nbytes, unsigned int flags, int pri, eio_cb cb, void *data) |
|
|
2540 | { |
|
|
2541 | REQ (EIO_SYNC_FILE_RANGE); req->int1 = fd; req->offs = offset; req->size = nbytes; req->int2 = flags; SEND; |
|
|
2542 | } |
|
|
2543 | |
1879 | eio_req *eio_mtouch (void *addr, size_t length, int flags, int pri, eio_cb cb, void *data) |
2544 | eio_req *eio_mtouch (void *addr, size_t length, int flags, int pri, eio_cb cb, void *data) |
1880 | { |
2545 | { |
1881 | REQ (EIO_MTOUCH); req->ptr2 = addr; req->size = length; req->int1 = flags; SEND; |
2546 | REQ (EIO_MTOUCH); req->ptr2 = addr; req->size = length; req->int1 = flags; SEND; |
1882 | } |
2547 | } |
1883 | |
2548 | |
… | |
… | |
1889 | eio_req *eio_mlockall (int flags, int pri, eio_cb cb, void *data) |
2554 | eio_req *eio_mlockall (int flags, int pri, eio_cb cb, void *data) |
1890 | { |
2555 | { |
1891 | REQ (EIO_MLOCKALL); req->int1 = flags; SEND; |
2556 | REQ (EIO_MLOCKALL); req->int1 = flags; SEND; |
1892 | } |
2557 | } |
1893 | |
2558 | |
1894 | eio_req *eio_sync_file_range (int fd, off_t offset, size_t nbytes, unsigned int flags, int pri, eio_cb cb, void *data) |
2559 | eio_req *eio_fallocate (int fd, int mode, off_t offset, size_t len, int pri, eio_cb cb, void *data) |
1895 | { |
2560 | { |
1896 | REQ (EIO_SYNC_FILE_RANGE); req->int1 = fd; req->offs = offset; req->size = nbytes; req->int2 = flags; SEND; |
2561 | REQ (EIO_FALLOCATE); req->int1 = fd; req->int2 = mode; req->offs = offset; req->size = len; SEND; |
1897 | } |
|
|
1898 | |
|
|
1899 | eio_req *eio_fdatasync (int fd, int pri, eio_cb cb, void *data) |
|
|
1900 | { |
|
|
1901 | REQ (EIO_FDATASYNC); req->int1 = fd; SEND; |
|
|
1902 | } |
2562 | } |
1903 | |
2563 | |
1904 | eio_req *eio_close (int fd, int pri, eio_cb cb, void *data) |
2564 | eio_req *eio_close (int fd, int pri, eio_cb cb, void *data) |
1905 | { |
2565 | { |
1906 | REQ (EIO_CLOSE); req->int1 = fd; SEND; |
2566 | REQ (EIO_CLOSE); req->int1 = fd; SEND; |
… | |
… | |
1944 | eio_req *eio_fchmod (int fd, mode_t mode, int pri, eio_cb cb, void *data) |
2604 | eio_req *eio_fchmod (int fd, mode_t mode, int pri, eio_cb cb, void *data) |
1945 | { |
2605 | { |
1946 | REQ (EIO_FCHMOD); req->int1 = fd; req->int2 = (long)mode; SEND; |
2606 | REQ (EIO_FCHMOD); req->int1 = fd; req->int2 = (long)mode; SEND; |
1947 | } |
2607 | } |
1948 | |
2608 | |
1949 | eio_req *eio_fchown (int fd, uid_t uid, gid_t gid, int pri, eio_cb cb, void *data) |
2609 | eio_req *eio_fchown (int fd, eio_uid_t uid, eio_gid_t gid, int pri, eio_cb cb, void *data) |
1950 | { |
2610 | { |
1951 | REQ (EIO_FCHOWN); req->int1 = fd; req->int2 = (long)uid; req->int3 = (long)gid; SEND; |
2611 | REQ (EIO_FCHOWN); req->int1 = fd; req->int2 = (long)uid; req->int3 = (long)gid; SEND; |
1952 | } |
2612 | } |
1953 | |
2613 | |
1954 | eio_req *eio_dup2 (int fd, int fd2, int pri, eio_cb cb, void *data) |
2614 | eio_req *eio_dup2 (int fd, int fd2, int pri, eio_cb cb, void *data) |
… | |
… | |
1974 | eio_req *eio_truncate (const char *path, off_t offset, int pri, eio_cb cb, void *data) |
2634 | eio_req *eio_truncate (const char *path, off_t offset, int pri, eio_cb cb, void *data) |
1975 | { |
2635 | { |
1976 | REQ (EIO_TRUNCATE); PATH; req->offs = offset; SEND; |
2636 | REQ (EIO_TRUNCATE); PATH; req->offs = offset; SEND; |
1977 | } |
2637 | } |
1978 | |
2638 | |
1979 | eio_req *eio_chown (const char *path, uid_t uid, gid_t gid, int pri, eio_cb cb, void *data) |
2639 | eio_req *eio_chown (const char *path, eio_uid_t uid, eio_gid_t gid, int pri, eio_cb cb, void *data) |
1980 | { |
2640 | { |
1981 | REQ (EIO_CHOWN); PATH; req->int2 = (long)uid; req->int3 = (long)gid; SEND; |
2641 | REQ (EIO_CHOWN); PATH; req->int2 = (long)uid; req->int3 = (long)gid; SEND; |
1982 | } |
2642 | } |
1983 | |
2643 | |
1984 | eio_req *eio_chmod (const char *path, mode_t mode, int pri, eio_cb cb, void *data) |
2644 | eio_req *eio_chmod (const char *path, mode_t mode, int pri, eio_cb cb, void *data) |
… | |
… | |
1998 | } |
2658 | } |
1999 | |
2659 | |
2000 | eio_req *eio_readlink (const char *path, int pri, eio_cb cb, void *data) |
2660 | eio_req *eio_readlink (const char *path, int pri, eio_cb cb, void *data) |
2001 | { |
2661 | { |
2002 | return eio__1path (EIO_READLINK, path, pri, cb, data); |
2662 | return eio__1path (EIO_READLINK, path, pri, cb, data); |
|
|
2663 | } |
|
|
2664 | |
|
|
2665 | eio_req *eio_realpath (const char *path, int pri, eio_cb cb, void *data) |
|
|
2666 | { |
|
|
2667 | return eio__1path (EIO_REALPATH, path, pri, cb, data); |
2003 | } |
2668 | } |
2004 | |
2669 | |
2005 | eio_req *eio_stat (const char *path, int pri, eio_cb cb, void *data) |
2670 | eio_req *eio_stat (const char *path, int pri, eio_cb cb, void *data) |
2006 | { |
2671 | { |
2007 | return eio__1path (EIO_STAT, path, pri, cb, data); |
2672 | return eio__1path (EIO_STAT, path, pri, cb, data); |
… | |
… | |
2126 | } |
2791 | } |
2127 | |
2792 | |
2128 | /*****************************************************************************/ |
2793 | /*****************************************************************************/ |
2129 | /* misc garbage */ |
2794 | /* misc garbage */ |
2130 | |
2795 | |
2131 | ssize_t |
2796 | eio_ssize_t |
2132 | eio_sendfile_sync (int ofd, int ifd, off_t offset, size_t count) |
2797 | eio_sendfile_sync (int ofd, int ifd, off_t offset, size_t count) |
2133 | { |
2798 | { |
2134 | etp_worker wrk; |
|
|
2135 | ssize_t ret; |
|
|
2136 | |
|
|
2137 | wrk.dbuf = 0; |
|
|
2138 | |
|
|
2139 | ret = eio__sendfile (ofd, ifd, offset, count, &wrk); |
2799 | return eio__sendfile (ofd, ifd, offset, count); |
2140 | |
|
|
2141 | if (wrk.dbuf) |
|
|
2142 | free (wrk.dbuf); |
|
|
2143 | |
|
|
2144 | return ret; |
|
|
2145 | } |
2800 | } |
2146 | |
2801 | |