… | |
… | |
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 | #ifdef EIO_STRUCT_STATI64 |
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111 | #define stat(path,buf) _stati64 (path,buf) |
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112 | #define fstat(fd,buf) _fstati64 (fd,buf) |
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113 | #endif |
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114 | #define lstat(path,buf) stat (path,buf) |
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115 | #define fsync(fd) (FlushFileBuffers ((HANDLE)EIO_FD_TO_WIN32_HANDLE (fd)) ? 0 : EIO_ERRNO (EBADF, -1)) |
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116 | #define mkdir(path,mode) _mkdir (path) |
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117 | #define link(old,neu) (CreateHardLink (neu, old, 0) ? 0 : EIO_ERRNO (ENOENT, -1)) |
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118 | |
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119 | #define chmod(path,mode) _chmod (path, mode) |
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120 | #define dup(fd) _dup (fd) |
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121 | #define dup2(fd1,fd2) _dup2 (fd1, fd2) |
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122 | |
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123 | #define fchmod(fd,mode) EIO_ENOSYS () |
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124 | #define chown(path,uid,gid) EIO_ENOSYS () |
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125 | #define fchown(fd,uid,gid) EIO_ENOSYS () |
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126 | #define truncate(path,offs) EIO_ENOSYS () /* far-miss: SetEndOfFile */ |
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127 | #define ftruncate(fd,offs) EIO_ENOSYS () /* near-miss: SetEndOfFile */ |
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128 | #define mknod(path,mode,dev) EIO_ENOSYS () |
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129 | #define sync() EIO_ENOSYS () |
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130 | #define readlink(path,buf,s) EIO_ENOSYS () |
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131 | #define statvfs(path,buf) EIO_ENOSYS () |
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132 | #define fstatvfs(fd,buf) EIO_ENOSYS () |
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133 | |
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134 | /* we could even stat and see if it exists */ |
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135 | static int |
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136 | symlink (const char *old, const char *neu) |
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137 | { |
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138 | #if WINVER >= 0x0600 |
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139 | if (CreateSymbolicLink (neu, old, 1)) |
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140 | return 0; |
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141 | |
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142 | if (CreateSymbolicLink (neu, old, 0)) |
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143 | return 0; |
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144 | #endif |
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145 | |
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146 | return EIO_ERRNO (ENOENT, -1); |
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147 | } |
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148 | |
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149 | /* POSIX API only */ |
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150 | #define CreateHardLink(neu,old,flags) 0 |
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151 | #define CreateSymbolicLink(neu,old,flags) 0 |
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152 | |
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153 | struct statvfs |
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154 | { |
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155 | int dummy; |
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156 | }; |
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157 | |
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158 | #define DT_DIR EIO_DT_DIR |
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159 | #define DT_REG EIO_DT_REG |
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160 | #define D_NAME(entp) entp.cFileName |
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161 | #define D_TYPE(entp) (entp.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY ? DT_DIR : DT_REG) |
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162 | |
85 | #else |
163 | #else |
86 | |
164 | |
87 | # include <sys/time.h> |
165 | #include <sys/time.h> |
88 | # include <sys/select.h> |
166 | #include <sys/select.h> |
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167 | #include <sys/statvfs.h> |
89 | # include <unistd.h> |
168 | #include <unistd.h> |
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169 | #include <signal.h> |
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170 | #include <dirent.h> |
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171 | |
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172 | #if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES |
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173 | #include <sys/mman.h> |
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174 | #endif |
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175 | |
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176 | #define D_NAME(entp) entp->d_name |
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177 | |
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178 | /* POSIX_SOURCE is useless on bsd's, and XOPEN_SOURCE is unreliable there, too */ |
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179 | #if __FreeBSD__ || defined __NetBSD__ || defined __OpenBSD__ |
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180 | #define _DIRENT_HAVE_D_TYPE /* sigh */ |
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181 | #define D_INO(de) (de)->d_fileno |
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182 | #define D_NAMLEN(de) (de)->d_namlen |
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183 | #elif __linux || defined d_ino || _XOPEN_SOURCE >= 600 |
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184 | #define D_INO(de) (de)->d_ino |
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185 | #endif |
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186 | |
|
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187 | #ifdef _D_EXACT_NAMLEN |
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188 | #undef D_NAMLEN |
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189 | #define D_NAMLEN(de) _D_EXACT_NAMLEN (de) |
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190 | #endif |
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191 | |
|
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192 | #ifdef _DIRENT_HAVE_D_TYPE |
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193 | #define D_TYPE(de) (de)->d_type |
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194 | #endif |
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195 | |
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196 | #ifndef EIO_STRUCT_DIRENT |
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197 | #define EIO_STRUCT_DIRENT struct dirent |
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198 | #endif |
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199 | |
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200 | #endif |
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201 | |
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202 | #if HAVE_UTIMES |
90 | # include <utime.h> |
203 | # 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 |
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106 | |
|
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107 | #ifdef _D_EXACT_NAMLEN |
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108 | # undef D_NAMLEN |
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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 |
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115 | |
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116 | # ifndef EIO_STRUCT_DIRENT |
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117 | # define EIO_STRUCT_DIRENT struct dirent |
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118 | # endif |
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119 | |
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120 | #endif |
204 | #endif |
121 | |
205 | |
122 | #if HAVE_SENDFILE |
206 | #if HAVE_SENDFILE |
123 | # if __linux |
207 | # if __linux |
124 | # include <sys/sendfile.h> |
208 | # include <sys/sendfile.h> |
… | |
… | |
132 | # else |
216 | # else |
133 | # error sendfile support requested but not available |
217 | # error sendfile support requested but not available |
134 | # endif |
218 | # endif |
135 | #endif |
219 | #endif |
136 | |
220 | |
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221 | #if HAVE_SYS_SYSCALL_H |
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222 | # include <sys/syscall.h> |
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223 | #endif |
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224 | |
137 | #ifndef D_TYPE |
225 | #ifndef D_TYPE |
138 | # define D_TYPE(de) 0 |
226 | # define D_TYPE(de) 0 |
139 | #endif |
227 | #endif |
140 | #ifndef D_INO |
228 | #ifndef D_INO |
141 | # define D_INO(de) 0 |
229 | # define D_INO(de) 0 |
142 | #endif |
230 | #endif |
143 | #ifndef D_NAMLEN |
231 | #ifndef D_NAMLEN |
144 | # define D_NAMLEN(de) strlen ((de)->d_name) |
232 | # define D_NAMLEN(entp) strlen (D_NAME (entp)) |
145 | #endif |
233 | #endif |
146 | |
234 | |
147 | /* used for struct dirent, AIX doesn't provide it */ |
235 | /* used for struct dirent, AIX doesn't provide it */ |
148 | #ifndef NAME_MAX |
236 | #ifndef NAME_MAX |
149 | # define NAME_MAX 4096 |
237 | # define NAME_MAX 4096 |
… | |
… | |
156 | |
244 | |
157 | /* buffer size for various temporary buffers */ |
245 | /* buffer size for various temporary buffers */ |
158 | #define EIO_BUFSIZE 65536 |
246 | #define EIO_BUFSIZE 65536 |
159 | |
247 | |
160 | #define dBUF \ |
248 | #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); \ |
249 | char *eio_buf = malloc (EIO_BUFSIZE); \ |
164 | ETP_WORKER_UNLOCK (self); \ |
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165 | errno = ENOMEM; \ |
250 | errno = ENOMEM; \ |
166 | if (!eio_buf) \ |
251 | if (!eio_buf) \ |
167 | return -1; |
252 | return -1 |
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253 | |
|
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254 | #define FUBd \ |
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255 | free (eio_buf) |
168 | |
256 | |
169 | #define EIO_TICKS ((1000000 + 1023) >> 10) |
257 | #define EIO_TICKS ((1000000 + 1023) >> 10) |
170 | |
258 | |
171 | #define ETP_PRI_MIN EIO_PRI_MIN |
259 | #define ETP_PRI_MIN EIO_PRI_MIN |
172 | #define ETP_PRI_MAX EIO_PRI_MAX |
260 | #define ETP_PRI_MAX EIO_PRI_MAX |
… | |
… | |
178 | static int eio_finish (eio_req *req); |
266 | static int eio_finish (eio_req *req); |
179 | #define ETP_FINISH(req) eio_finish (req) |
267 | #define ETP_FINISH(req) eio_finish (req) |
180 | static void eio_execute (struct etp_worker *self, eio_req *req); |
268 | static void eio_execute (struct etp_worker *self, eio_req *req); |
181 | #define ETP_EXECUTE(wrk,req) eio_execute (wrk,req) |
269 | #define ETP_EXECUTE(wrk,req) eio_execute (wrk,req) |
182 | |
270 | |
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 | |
|
|
200 | /*****************************************************************************/ |
271 | /*****************************************************************************/ |
201 | |
272 | |
202 | #define ETP_NUM_PRI (ETP_PRI_MAX - ETP_PRI_MIN + 1) |
273 | #define ETP_NUM_PRI (ETP_PRI_MAX - ETP_PRI_MIN + 1) |
203 | |
274 | |
204 | /* calculate time difference in ~1/EIO_TICKS of a second */ |
275 | /* calculate time difference in ~1/EIO_TICKS of a second */ |
205 | ECB_INLINE int |
276 | ecb_inline int |
206 | tvdiff (struct timeval *tv1, struct timeval *tv2) |
277 | tvdiff (struct timeval *tv1, struct timeval *tv2) |
207 | { |
278 | { |
208 | return (tv2->tv_sec - tv1->tv_sec ) * EIO_TICKS |
279 | return (tv2->tv_sec - tv1->tv_sec ) * EIO_TICKS |
209 | + ((tv2->tv_usec - tv1->tv_usec) >> 10); |
280 | + ((tv2->tv_usec - tv1->tv_usec) >> 10); |
210 | } |
281 | } |
… | |
… | |
232 | /* |
303 | /* |
233 | * make our pread/pwrite emulation safe against themselves, but not against |
304 | * make our pread/pwrite emulation safe against themselves, but not against |
234 | * normal read/write by using a mutex. slows down execution a lot, |
305 | * normal read/write by using a mutex. slows down execution a lot, |
235 | * but that's your problem, not mine. |
306 | * but that's your problem, not mine. |
236 | */ |
307 | */ |
237 | static xmutex_t preadwritelock = X_MUTEX_INIT; |
308 | static xmutex_t preadwritelock; |
238 | #endif |
309 | #endif |
239 | |
310 | |
240 | typedef struct etp_worker |
311 | typedef struct etp_worker |
241 | { |
312 | { |
242 | /* locked by wrklock */ |
313 | /* locked by wrklock */ |
… | |
… | |
245 | xthread_t tid; |
316 | xthread_t tid; |
246 | |
317 | |
247 | /* locked by reslock, reqlock or wrklock */ |
318 | /* locked by reslock, reqlock or wrklock */ |
248 | ETP_REQ *req; /* currently processed request */ |
319 | ETP_REQ *req; /* currently processed request */ |
249 | |
320 | |
|
|
321 | #ifdef ETP_WORKER_COMMON |
250 | ETP_WORKER_COMMON |
322 | ETP_WORKER_COMMON |
|
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323 | #endif |
251 | } etp_worker; |
324 | } etp_worker; |
252 | |
325 | |
253 | static etp_worker wrk_first = { &wrk_first, &wrk_first, 0 }; /* NOT etp */ |
326 | static etp_worker wrk_first; /* NOT etp */ |
254 | |
327 | |
255 | #define ETP_WORKER_LOCK(wrk) X_LOCK (wrklock) |
328 | #define ETP_WORKER_LOCK(wrk) X_LOCK (wrklock) |
256 | #define ETP_WORKER_UNLOCK(wrk) X_UNLOCK (wrklock) |
329 | #define ETP_WORKER_UNLOCK(wrk) X_UNLOCK (wrklock) |
257 | |
330 | |
258 | /* worker threads management */ |
331 | /* worker threads management */ |
259 | |
332 | |
260 | static void ecb_cold |
333 | static void ecb_cold |
261 | etp_worker_clear (etp_worker *wrk) |
334 | etp_worker_clear (etp_worker *wrk) |
262 | { |
335 | { |
263 | ETP_WORKER_CLEAR (wrk); |
|
|
264 | } |
336 | } |
265 | |
337 | |
266 | static void ecb_cold |
338 | static void ecb_cold |
267 | etp_worker_free (etp_worker *wrk) |
339 | etp_worker_free (etp_worker *wrk) |
268 | { |
340 | { |
… | |
… | |
329 | } etp_reqq; |
401 | } etp_reqq; |
330 | |
402 | |
331 | static etp_reqq req_queue; |
403 | static etp_reqq req_queue; |
332 | static etp_reqq res_queue; |
404 | static etp_reqq res_queue; |
333 | |
405 | |
|
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406 | static void ecb_noinline ecb_cold |
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407 | reqq_init (etp_reqq *q) |
|
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408 | { |
|
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409 | int pri; |
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410 | |
|
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411 | for (pri = 0; pri < ETP_NUM_PRI; ++pri) |
|
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412 | q->qs[pri] = q->qe[pri] = 0; |
|
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413 | |
|
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414 | q->size = 0; |
|
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415 | } |
|
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416 | |
334 | static int ecb_noinline |
417 | static int ecb_noinline |
335 | reqq_push (etp_reqq *q, ETP_REQ *req) |
418 | reqq_push (etp_reqq *q, ETP_REQ *req) |
336 | { |
419 | { |
337 | int pri = req->pri; |
420 | int pri = req->pri; |
338 | req->next = 0; |
421 | req->next = 0; |
… | |
… | |
372 | } |
455 | } |
373 | |
456 | |
374 | abort (); |
457 | abort (); |
375 | } |
458 | } |
376 | |
459 | |
377 | static void ecb_cold |
460 | static int ecb_cold |
378 | etp_thread_init (void) |
461 | etp_init (void (*want_poll)(void), void (*done_poll)(void)) |
379 | { |
462 | { |
380 | X_MUTEX_CREATE (wrklock); |
463 | X_MUTEX_CREATE (wrklock); |
381 | X_MUTEX_CREATE (reslock); |
464 | X_MUTEX_CREATE (reslock); |
382 | X_MUTEX_CREATE (reqlock); |
465 | X_MUTEX_CREATE (reqlock); |
383 | X_COND_CREATE (reqwait); |
466 | X_COND_CREATE (reqwait); |
384 | } |
|
|
385 | |
467 | |
386 | static void ecb_cold |
468 | reqq_init (&req_queue); |
387 | etp_atfork_prepare (void) |
469 | reqq_init (&res_queue); |
388 | { |
|
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389 | X_LOCK (wrklock); |
|
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390 | X_LOCK (reqlock); |
|
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391 | X_LOCK (reslock); |
|
|
392 | #if !HAVE_PREADWRITE |
|
|
393 | X_LOCK (preadwritelock); |
|
|
394 | #endif |
|
|
395 | } |
|
|
396 | |
470 | |
397 | static void ecb_cold |
471 | wrk_first.next = |
398 | etp_atfork_parent (void) |
472 | wrk_first.prev = &wrk_first; |
399 | { |
|
|
400 | #if !HAVE_PREADWRITE |
|
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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 | |
473 | |
430 | started = 0; |
474 | started = 0; |
431 | idle = 0; |
475 | idle = 0; |
432 | nreqs = 0; |
476 | nreqs = 0; |
433 | nready = 0; |
477 | nready = 0; |
434 | npending = 0; |
478 | 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 | |
479 | |
453 | want_poll_cb = want_poll; |
480 | want_poll_cb = want_poll; |
454 | done_poll_cb = done_poll; |
481 | done_poll_cb = done_poll; |
455 | |
482 | |
456 | return 0; |
483 | return 0; |
… | |
… | |
583 | } |
610 | } |
584 | |
611 | |
585 | static void |
612 | static void |
586 | etp_cancel (ETP_REQ *req) |
613 | etp_cancel (ETP_REQ *req) |
587 | { |
614 | { |
588 | X_LOCK (wrklock); |
615 | req->cancelled = 1; |
589 | req->flags |= EIO_FLAG_CANCELLED; |
|
|
590 | X_UNLOCK (wrklock); |
|
|
591 | |
616 | |
592 | eio_grp_cancel (req); |
617 | eio_grp_cancel (req); |
593 | } |
618 | } |
594 | |
619 | |
595 | static void |
620 | static void |
… | |
… | |
711 | return eio_finish (grp); |
736 | return eio_finish (grp); |
712 | else |
737 | else |
713 | return 0; |
738 | return 0; |
714 | } |
739 | } |
715 | |
740 | |
716 | void |
741 | static void |
717 | eio_destroy (eio_req *req) |
742 | eio_destroy (eio_req *req) |
718 | { |
743 | { |
719 | if ((req)->flags & EIO_FLAG_PTR1_FREE) free (req->ptr1); |
744 | if ((req)->flags & EIO_FLAG_PTR1_FREE) free (req->ptr1); |
720 | if ((req)->flags & EIO_FLAG_PTR2_FREE) free (req->ptr2); |
745 | if ((req)->flags & EIO_FLAG_PTR2_FREE) free (req->ptr2); |
721 | |
746 | |
… | |
… | |
739 | if (grp->grp_first == req) |
764 | if (grp->grp_first == req) |
740 | grp->grp_first = req->grp_next; |
765 | grp->grp_first = req->grp_next; |
741 | |
766 | |
742 | res2 = grp_dec (grp); |
767 | res2 = grp_dec (grp); |
743 | |
768 | |
744 | if (!res && res2) |
769 | if (!res) |
745 | res = res2; |
770 | res = res2; |
746 | } |
771 | } |
747 | |
772 | |
748 | eio_destroy (req); |
773 | eio_destroy (req); |
749 | |
774 | |
… | |
… | |
841 | # undef pread |
866 | # undef pread |
842 | # undef pwrite |
867 | # undef pwrite |
843 | # define pread eio__pread |
868 | # define pread eio__pread |
844 | # define pwrite eio__pwrite |
869 | # define pwrite eio__pwrite |
845 | |
870 | |
846 | static ssize_t |
871 | static eio_ssize_t |
847 | eio__pread (int fd, void *buf, size_t count, off_t offset) |
872 | eio__pread (int fd, void *buf, size_t count, off_t offset) |
848 | { |
873 | { |
849 | ssize_t res; |
874 | eio_ssize_t res; |
850 | off_t ooffset; |
875 | off_t ooffset; |
851 | |
876 | |
852 | X_LOCK (preadwritelock); |
877 | X_LOCK (preadwritelock); |
853 | ooffset = lseek (fd, 0, SEEK_CUR); |
878 | ooffset = lseek (fd, 0, SEEK_CUR); |
854 | lseek (fd, offset, SEEK_SET); |
879 | lseek (fd, offset, SEEK_SET); |
… | |
… | |
857 | X_UNLOCK (preadwritelock); |
882 | X_UNLOCK (preadwritelock); |
858 | |
883 | |
859 | return res; |
884 | return res; |
860 | } |
885 | } |
861 | |
886 | |
862 | static ssize_t |
887 | static eio_ssize_t |
863 | eio__pwrite (int fd, void *buf, size_t count, off_t offset) |
888 | eio__pwrite (int fd, void *buf, size_t count, off_t offset) |
864 | { |
889 | { |
865 | ssize_t res; |
890 | eio_ssize_t res; |
866 | off_t ooffset; |
891 | off_t ooffset; |
867 | |
892 | |
868 | X_LOCK (preadwritelock); |
893 | X_LOCK (preadwritelock); |
869 | ooffset = lseek (fd, 0, SEEK_CUR); |
894 | ooffset = lseek (fd, 0, SEEK_CUR); |
870 | lseek (fd, offset, SEEK_SET); |
895 | lseek (fd, offset, SEEK_SET); |
… | |
… | |
915 | |
940 | |
916 | #if !HAVE_FDATASYNC |
941 | #if !HAVE_FDATASYNC |
917 | # undef fdatasync |
942 | # undef fdatasync |
918 | # define fdatasync(fd) fsync (fd) |
943 | # define fdatasync(fd) fsync (fd) |
919 | #endif |
944 | #endif |
|
|
945 | |
|
|
946 | static int |
|
|
947 | eio__syncfs (int fd) |
|
|
948 | { |
|
|
949 | int res; |
|
|
950 | |
|
|
951 | #if HAVE_SYS_SYNCFS |
|
|
952 | res = (int)syscall (__NR_syncfs, (int)(fd)); |
|
|
953 | #else |
|
|
954 | res = -1; |
|
|
955 | errno = ENOSYS; |
|
|
956 | #endif |
|
|
957 | |
|
|
958 | if (res < 0 && errno == ENOSYS && fd >= 0) |
|
|
959 | sync (); |
|
|
960 | |
|
|
961 | return res; |
|
|
962 | } |
920 | |
963 | |
921 | /* sync_file_range always needs emulation */ |
964 | /* sync_file_range always needs emulation */ |
922 | static int |
965 | static int |
923 | eio__sync_file_range (int fd, off_t offset, size_t nbytes, unsigned int flags) |
966 | eio__sync_file_range (int fd, off_t offset, size_t nbytes, unsigned int flags) |
924 | { |
967 | { |
… | |
… | |
944 | /* even though we could play tricks with the flags, it's better to always |
987 | /* 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 */ |
988 | * call fdatasync, as that matches the expectation of its users best */ |
946 | return fdatasync (fd); |
989 | return fdatasync (fd); |
947 | } |
990 | } |
948 | |
991 | |
|
|
992 | static int |
|
|
993 | eio__fallocate (int fd, int mode, off_t offset, size_t len) |
|
|
994 | { |
|
|
995 | #if HAVE_FALLOCATE |
|
|
996 | return fallocate (fd, mode, offset, len); |
|
|
997 | #else |
|
|
998 | errno = ENOSYS; |
|
|
999 | return -1; |
|
|
1000 | #endif |
|
|
1001 | } |
|
|
1002 | |
949 | #if !HAVE_READAHEAD |
1003 | #if !HAVE_READAHEAD |
950 | # undef readahead |
1004 | # undef readahead |
951 | # define readahead(fd,offset,count) eio__readahead (fd, offset, count, self) |
1005 | # define readahead(fd,offset,count) eio__readahead (fd, offset, count, self) |
952 | |
1006 | |
953 | static ssize_t |
1007 | static eio_ssize_t |
954 | eio__readahead (int fd, off_t offset, size_t count, etp_worker *self) |
1008 | eio__readahead (int fd, off_t offset, size_t count, etp_worker *self) |
955 | { |
1009 | { |
956 | size_t todo = count; |
1010 | size_t todo = count; |
957 | dBUF; |
1011 | dBUF; |
958 | |
1012 | |
… | |
… | |
963 | pread (fd, eio_buf, len, offset); |
1017 | pread (fd, eio_buf, len, offset); |
964 | offset += len; |
1018 | offset += len; |
965 | todo -= len; |
1019 | todo -= len; |
966 | } |
1020 | } |
967 | |
1021 | |
|
|
1022 | FUBd; |
|
|
1023 | |
968 | errno = 0; |
1024 | errno = 0; |
969 | return count; |
1025 | return count; |
970 | } |
1026 | } |
971 | |
1027 | |
972 | #endif |
1028 | #endif |
973 | |
1029 | |
974 | /* sendfile always needs emulation */ |
1030 | /* sendfile always needs emulation */ |
975 | static ssize_t |
1031 | static eio_ssize_t |
976 | eio__sendfile (int ofd, int ifd, off_t offset, size_t count, etp_worker *self) |
1032 | eio__sendfile (int ofd, int ifd, off_t offset, size_t count) |
977 | { |
1033 | { |
978 | ssize_t written = 0; |
1034 | eio_ssize_t written = 0; |
979 | ssize_t res; |
1035 | eio_ssize_t res; |
980 | |
1036 | |
981 | if (!count) |
1037 | if (!count) |
982 | return 0; |
1038 | return 0; |
983 | |
1039 | |
984 | for (;;) |
1040 | for (;;) |
985 | { |
1041 | { |
|
|
1042 | #ifdef __APPLE__ |
|
|
1043 | # undef HAVE_SENDFILE /* broken, as everything on os x */ |
|
|
1044 | #endif |
986 | #if HAVE_SENDFILE |
1045 | #if HAVE_SENDFILE |
987 | # if __linux |
1046 | # if __linux |
988 | off_t soffset = offset; |
1047 | off_t soffset = offset; |
989 | res = sendfile (ofd, ifd, &soffset, count); |
1048 | res = sendfile (ofd, ifd, &soffset, count); |
990 | |
1049 | |
… | |
… | |
1033 | if (res < 0 && sbytes) |
1092 | if (res < 0 && sbytes) |
1034 | res = sbytes; |
1093 | res = sbytes; |
1035 | |
1094 | |
1036 | # endif |
1095 | # endif |
1037 | |
1096 | |
1038 | #elif defined (_WIN32) |
1097 | #elif defined (_WIN32) && 0 |
1039 | /* does not work, just for documentation of what would need to be done */ |
1098 | /* 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, */ |
1099 | /* actually, cannot be done like this, as TransmitFile changes the file offset, */ |
1041 | /* libeio guarantees that the file offset does not change, and windows */ |
1100 | /* 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 */ |
1101 | /* has no way to get an independent handle to the same file description */ |
1043 | HANDLE h = TO_SOCKET (ifd); |
1102 | HANDLE h = TO_SOCKET (ifd); |
… | |
… | |
1076 | && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK |
1135 | && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK |
1077 | /* BSDs */ |
1136 | /* BSDs */ |
1078 | #ifdef ENOTSUP /* sigh, if the steenking pile called openbsd would only try to at least compile posix code... */ |
1137 | #ifdef ENOTSUP /* sigh, if the steenking pile called openbsd would only try to at least compile posix code... */ |
1079 | || errno == ENOTSUP |
1138 | || errno == ENOTSUP |
1080 | #endif |
1139 | #endif |
|
|
1140 | #ifdef EOPNOTSUPP /* windows */ |
1081 | || errno == EOPNOTSUPP /* BSDs */ |
1141 | || errno == EOPNOTSUPP /* BSDs */ |
|
|
1142 | #endif |
1082 | #if __solaris |
1143 | #if __solaris |
1083 | || errno == EAFNOSUPPORT || errno == EPROTOTYPE |
1144 | || errno == EAFNOSUPPORT || errno == EPROTOTYPE |
1084 | #endif |
1145 | #endif |
1085 | ) |
1146 | ) |
1086 | ) |
1147 | ) |
… | |
… | |
1090 | |
1151 | |
1091 | res = 0; |
1152 | res = 0; |
1092 | |
1153 | |
1093 | while (count) |
1154 | while (count) |
1094 | { |
1155 | { |
1095 | ssize_t cnt; |
1156 | eio_ssize_t cnt; |
1096 | |
1157 | |
1097 | cnt = pread (ifd, eio_buf, count > EIO_BUFSIZE ? EIO_BUFSIZE : count, offset); |
1158 | cnt = pread (ifd, eio_buf, count > EIO_BUFSIZE ? EIO_BUFSIZE : count, offset); |
1098 | |
1159 | |
1099 | if (cnt <= 0) |
1160 | if (cnt <= 0) |
1100 | { |
1161 | { |
… | |
… | |
1112 | |
1173 | |
1113 | offset += cnt; |
1174 | offset += cnt; |
1114 | res += cnt; |
1175 | res += cnt; |
1115 | count -= cnt; |
1176 | count -= cnt; |
1116 | } |
1177 | } |
|
|
1178 | |
|
|
1179 | FUBd; |
1117 | } |
1180 | } |
1118 | |
1181 | |
1119 | return res; |
1182 | return res; |
|
|
1183 | } |
|
|
1184 | |
|
|
1185 | #ifdef PAGESIZE |
|
|
1186 | # define eio_pagesize() PAGESIZE |
|
|
1187 | #else |
|
|
1188 | static intptr_t |
|
|
1189 | eio_pagesize (void) |
|
|
1190 | { |
|
|
1191 | static intptr_t page; |
|
|
1192 | |
|
|
1193 | if (!page) |
|
|
1194 | page = sysconf (_SC_PAGESIZE); |
|
|
1195 | |
|
|
1196 | return page; |
|
|
1197 | } |
|
|
1198 | #endif |
|
|
1199 | |
|
|
1200 | static void |
|
|
1201 | eio_page_align (void **addr, size_t *length) |
|
|
1202 | { |
|
|
1203 | intptr_t mask = eio_pagesize () - 1; |
|
|
1204 | |
|
|
1205 | /* round down addr */ |
|
|
1206 | intptr_t adj = mask & (intptr_t)*addr; |
|
|
1207 | |
|
|
1208 | *addr = (void *)((intptr_t)*addr - adj); |
|
|
1209 | *length += adj; |
|
|
1210 | |
|
|
1211 | /* round up length */ |
|
|
1212 | *length = (*length + mask) & ~mask; |
|
|
1213 | } |
|
|
1214 | |
|
|
1215 | #if !_POSIX_MEMLOCK |
|
|
1216 | # define eio__mlockall(a) EIO_ENOSYS () |
|
|
1217 | #else |
|
|
1218 | |
|
|
1219 | static int |
|
|
1220 | eio__mlockall (int flags) |
|
|
1221 | { |
|
|
1222 | #if __GLIBC__ == 2 && __GLIBC_MINOR__ <= 7 |
|
|
1223 | extern int mallopt (int, int); |
|
|
1224 | mallopt (-6, 238); /* http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=473812 */ |
|
|
1225 | #endif |
|
|
1226 | |
|
|
1227 | if (EIO_MCL_CURRENT != MCL_CURRENT |
|
|
1228 | || EIO_MCL_FUTURE != MCL_FUTURE) |
|
|
1229 | { |
|
|
1230 | flags = 0 |
|
|
1231 | | (flags & EIO_MCL_CURRENT ? MCL_CURRENT : 0) |
|
|
1232 | | (flags & EIO_MCL_FUTURE ? MCL_FUTURE : 0); |
|
|
1233 | } |
|
|
1234 | |
|
|
1235 | return mlockall (flags); |
|
|
1236 | } |
|
|
1237 | #endif |
|
|
1238 | |
|
|
1239 | #if !_POSIX_MEMLOCK_RANGE |
|
|
1240 | # define eio__mlock(a,b) EIO_ENOSYS () |
|
|
1241 | #else |
|
|
1242 | |
|
|
1243 | static int |
|
|
1244 | eio__mlock (void *addr, size_t length) |
|
|
1245 | { |
|
|
1246 | eio_page_align (&addr, &length); |
|
|
1247 | |
|
|
1248 | return mlock (addr, length); |
|
|
1249 | } |
|
|
1250 | |
|
|
1251 | #endif |
|
|
1252 | |
|
|
1253 | #if !(_POSIX_MAPPED_FILES && _POSIX_SYNCHRONIZED_IO) |
|
|
1254 | # define eio__msync(a,b,c) EIO_ENOSYS () |
|
|
1255 | #else |
|
|
1256 | |
|
|
1257 | static int |
|
|
1258 | eio__msync (void *mem, size_t len, int flags) |
|
|
1259 | { |
|
|
1260 | eio_page_align (&mem, &len); |
|
|
1261 | |
|
|
1262 | if (EIO_MS_ASYNC != MS_SYNC |
|
|
1263 | || EIO_MS_INVALIDATE != MS_INVALIDATE |
|
|
1264 | || EIO_MS_SYNC != MS_SYNC) |
|
|
1265 | { |
|
|
1266 | flags = 0 |
|
|
1267 | | (flags & EIO_MS_ASYNC ? MS_ASYNC : 0) |
|
|
1268 | | (flags & EIO_MS_INVALIDATE ? MS_INVALIDATE : 0) |
|
|
1269 | | (flags & EIO_MS_SYNC ? MS_SYNC : 0); |
|
|
1270 | } |
|
|
1271 | |
|
|
1272 | return msync (mem, len, flags); |
|
|
1273 | } |
|
|
1274 | |
|
|
1275 | #endif |
|
|
1276 | |
|
|
1277 | static int |
|
|
1278 | eio__mtouch (eio_req *req) |
|
|
1279 | { |
|
|
1280 | void *mem = req->ptr2; |
|
|
1281 | size_t len = req->size; |
|
|
1282 | int flags = req->int1; |
|
|
1283 | |
|
|
1284 | eio_page_align (&mem, &len); |
|
|
1285 | |
|
|
1286 | { |
|
|
1287 | intptr_t addr = (intptr_t)mem; |
|
|
1288 | intptr_t end = addr + len; |
|
|
1289 | intptr_t page = eio_pagesize (); |
|
|
1290 | |
|
|
1291 | if (addr < end) |
|
|
1292 | if (flags & EIO_MT_MODIFY) /* modify */ |
|
|
1293 | do { *((volatile sig_atomic_t *)addr) |= 0; } while ((addr += page) < len && !EIO_CANCELLED (req)); |
|
|
1294 | else |
|
|
1295 | do { *((volatile sig_atomic_t *)addr) ; } while ((addr += page) < len && !EIO_CANCELLED (req)); |
|
|
1296 | } |
|
|
1297 | |
|
|
1298 | return 0; |
|
|
1299 | } |
|
|
1300 | |
|
|
1301 | /*****************************************************************************/ |
|
|
1302 | /* requests implemented outside eio_execute, because they are so large */ |
|
|
1303 | |
|
|
1304 | static void |
|
|
1305 | eio__realpath (eio_req *req, etp_worker *self) |
|
|
1306 | { |
|
|
1307 | char *rel = req->ptr1; |
|
|
1308 | char *res; |
|
|
1309 | char *tmp1, *tmp2; |
|
|
1310 | #if SYMLOOP_MAX > 32 |
|
|
1311 | int symlinks = SYMLOOP_MAX; |
|
|
1312 | #else |
|
|
1313 | int symlinks = 32; |
|
|
1314 | #endif |
|
|
1315 | |
|
|
1316 | req->result = -1; |
|
|
1317 | |
|
|
1318 | errno = EINVAL; |
|
|
1319 | if (!rel) |
|
|
1320 | return; |
|
|
1321 | |
|
|
1322 | errno = ENOENT; |
|
|
1323 | if (!*rel) |
|
|
1324 | return; |
|
|
1325 | |
|
|
1326 | if (!req->ptr2) |
|
|
1327 | { |
|
|
1328 | X_LOCK (wrklock); |
|
|
1329 | req->flags |= EIO_FLAG_PTR2_FREE; |
|
|
1330 | X_UNLOCK (wrklock); |
|
|
1331 | req->ptr2 = malloc (PATH_MAX * 3); |
|
|
1332 | |
|
|
1333 | errno = ENOMEM; |
|
|
1334 | if (!req->ptr2) |
|
|
1335 | return; |
|
|
1336 | } |
|
|
1337 | |
|
|
1338 | res = req->ptr2; |
|
|
1339 | tmp1 = res + PATH_MAX; |
|
|
1340 | tmp2 = tmp1 + PATH_MAX; |
|
|
1341 | |
|
|
1342 | #if 0 /* disabled, the musl way to do things is just too racy */ |
|
|
1343 | #if __linux && defined(O_NONBLOCK) && defined(O_NOATIME) |
|
|
1344 | /* on linux we may be able to ask the kernel */ |
|
|
1345 | { |
|
|
1346 | int fd = open (rel, O_RDONLY | O_NONBLOCK | O_NOCTTY | O_NOATIME); |
|
|
1347 | |
|
|
1348 | if (fd >= 0) |
|
|
1349 | { |
|
|
1350 | sprintf (tmp1, "/proc/self/fd/%d", fd); |
|
|
1351 | req->result = readlink (tmp1, res, PATH_MAX); |
|
|
1352 | close (fd); |
|
|
1353 | |
|
|
1354 | /* here we should probably stat the open file and the disk file, to make sure they still match */ |
|
|
1355 | |
|
|
1356 | if (req->result > 0) |
|
|
1357 | goto done; |
|
|
1358 | } |
|
|
1359 | else if (errno == ELOOP || errno == ENAMETOOLONG || errno == ENOENT || errno == ENOTDIR || errno == EIO) |
|
|
1360 | return; |
|
|
1361 | } |
|
|
1362 | #endif |
|
|
1363 | #endif |
|
|
1364 | |
|
|
1365 | if (*rel != '/') |
|
|
1366 | { |
|
|
1367 | if (!getcwd (res, PATH_MAX)) |
|
|
1368 | return; |
|
|
1369 | |
|
|
1370 | if (res [1]) /* only use if not / */ |
|
|
1371 | res += strlen (res); |
|
|
1372 | } |
|
|
1373 | |
|
|
1374 | while (*rel) |
|
|
1375 | { |
|
|
1376 | eio_ssize_t len, linklen; |
|
|
1377 | char *beg = rel; |
|
|
1378 | |
|
|
1379 | while (*rel && *rel != '/') |
|
|
1380 | ++rel; |
|
|
1381 | |
|
|
1382 | len = rel - beg; |
|
|
1383 | |
|
|
1384 | if (!len) /* skip slashes */ |
|
|
1385 | { |
|
|
1386 | ++rel; |
|
|
1387 | continue; |
|
|
1388 | } |
|
|
1389 | |
|
|
1390 | if (beg [0] == '.') |
|
|
1391 | { |
|
|
1392 | if (len == 1) |
|
|
1393 | continue; /* . - nop */ |
|
|
1394 | |
|
|
1395 | if (beg [1] == '.' && len == 2) |
|
|
1396 | { |
|
|
1397 | /* .. - back up one component, if possible */ |
|
|
1398 | |
|
|
1399 | while (res != req->ptr2) |
|
|
1400 | if (*--res == '/') |
|
|
1401 | break; |
|
|
1402 | |
|
|
1403 | continue; |
|
|
1404 | } |
|
|
1405 | } |
|
|
1406 | |
|
|
1407 | errno = ENAMETOOLONG; |
|
|
1408 | if (res + 1 + len + 1 >= tmp1) |
|
|
1409 | return; |
|
|
1410 | |
|
|
1411 | /* copy one component */ |
|
|
1412 | *res = '/'; |
|
|
1413 | memcpy (res + 1, beg, len); |
|
|
1414 | |
|
|
1415 | /* zero-terminate, for readlink */ |
|
|
1416 | res [len + 1] = 0; |
|
|
1417 | |
|
|
1418 | /* now check if it's a symlink */ |
|
|
1419 | linklen = readlink (req->ptr2, tmp1, PATH_MAX); |
|
|
1420 | |
|
|
1421 | if (linklen < 0) |
|
|
1422 | { |
|
|
1423 | if (errno != EINVAL) |
|
|
1424 | return; |
|
|
1425 | |
|
|
1426 | /* it's a normal directory. hopefully */ |
|
|
1427 | res += len + 1; |
|
|
1428 | } |
|
|
1429 | else |
|
|
1430 | { |
|
|
1431 | /* yay, it was a symlink - build new path in tmp2 */ |
|
|
1432 | int rellen = strlen (rel); |
|
|
1433 | |
|
|
1434 | errno = ENAMETOOLONG; |
|
|
1435 | if (linklen + 1 + rellen >= PATH_MAX) |
|
|
1436 | return; |
|
|
1437 | |
|
|
1438 | errno = ELOOP; |
|
|
1439 | if (!--symlinks) |
|
|
1440 | return; |
|
|
1441 | |
|
|
1442 | if (*tmp1 == '/') |
|
|
1443 | res = req->ptr2; /* symlink resolves to an absolute path */ |
|
|
1444 | |
|
|
1445 | /* we need to be careful, as rel might point into tmp2 already */ |
|
|
1446 | memmove (tmp2 + linklen + 1, rel, rellen + 1); |
|
|
1447 | tmp2 [linklen] = '/'; |
|
|
1448 | memcpy (tmp2, tmp1, linklen); |
|
|
1449 | |
|
|
1450 | rel = tmp2; |
|
|
1451 | } |
|
|
1452 | } |
|
|
1453 | |
|
|
1454 | /* special case for the lone root path */ |
|
|
1455 | if (res == req->ptr2) |
|
|
1456 | *res++ = '/'; |
|
|
1457 | |
|
|
1458 | req->result = res - (char *)req->ptr2; |
|
|
1459 | |
|
|
1460 | done: |
|
|
1461 | req->ptr2 = realloc (req->ptr2, req->result); /* trade time for space savings */ |
1120 | } |
1462 | } |
1121 | |
1463 | |
1122 | static signed char |
1464 | static signed char |
1123 | eio_dent_cmp (const eio_dirent *a, const eio_dirent *b) |
1465 | eio_dent_cmp (const eio_dirent *a, const eio_dirent *b) |
1124 | { |
1466 | { |
… | |
… | |
1132 | |
1474 | |
1133 | #define EIO_SORT_CUTOFF 30 /* quite high, but performs well on many filesystems */ |
1475 | #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 */ |
1476 | #define EIO_SORT_FAST 60 /* when to only use insertion sort */ |
1135 | |
1477 | |
1136 | static void |
1478 | static void |
1137 | eio_dent_radix_sort (eio_dirent *dents, int size, signed char score_bits, ino_t inode_bits) |
1479 | eio_dent_radix_sort (eio_dirent *dents, int size, signed char score_bits, eio_ino_t inode_bits) |
1138 | { |
1480 | { |
1139 | unsigned char bits [9 + sizeof (ino_t) * 8]; |
1481 | unsigned char bits [9 + sizeof (eio_ino_t) * 8]; |
1140 | unsigned char *bit = bits; |
1482 | unsigned char *bit = bits; |
1141 | |
1483 | |
1142 | assert (CHAR_BIT == 8); |
1484 | assert (CHAR_BIT == 8); |
1143 | assert (sizeof (eio_dirent) * 8 < 256); |
1485 | assert (sizeof (eio_dirent) * 8 < 256); |
1144 | assert (offsetof (eio_dirent, inode)); /* we use bit #0 as sentinel */ |
1486 | assert (offsetof (eio_dirent, inode)); /* we use bit #0 as sentinel */ |
… | |
… | |
1146 | |
1488 | |
1147 | if (size <= EIO_SORT_FAST) |
1489 | if (size <= EIO_SORT_FAST) |
1148 | return; |
1490 | return; |
1149 | |
1491 | |
1150 | /* first prepare an array of bits to test in our radix sort */ |
1492 | /* 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 */ |
1493 | /* try to take endianness into account, as well as differences in eio_ino_t sizes */ |
1152 | /* inode_bits must contain all inodes ORed together */ |
1494 | /* inode_bits must contain all inodes ORed together */ |
1153 | /* which is used to skip bits that are 0 everywhere, which is very common */ |
1495 | /* which is used to skip bits that are 0 everywhere, which is very common */ |
1154 | { |
1496 | { |
1155 | ino_t endianness; |
1497 | eio_ino_t endianness; |
1156 | int i, j; |
1498 | int i, j; |
1157 | |
1499 | |
1158 | /* we store the byte offset of byte n into byte n of "endianness" */ |
1500 | /* we store the byte offset of byte n into byte n of "endianness" */ |
1159 | for (i = 0; i < sizeof (ino_t); ++i) |
1501 | for (i = 0; i < sizeof (eio_ino_t); ++i) |
1160 | ((unsigned char *)&endianness)[i] = i; |
1502 | ((unsigned char *)&endianness)[i] = i; |
1161 | |
1503 | |
1162 | *bit++ = 0; |
1504 | *bit++ = 0; |
1163 | |
1505 | |
1164 | for (i = 0; i < sizeof (ino_t); ++i) |
1506 | for (i = 0; i < sizeof (eio_ino_t); ++i) |
1165 | { |
1507 | { |
1166 | /* shifting off the byte offsets out of "endianness" */ |
1508 | /* shifting off the byte offsets out of "endianness" */ |
1167 | int offs = (offsetof (eio_dirent, inode) + (endianness & 0xff)) * 8; |
1509 | int offs = (offsetof (eio_dirent, inode) + (endianness & 0xff)) * 8; |
1168 | endianness >>= 8; |
1510 | endianness >>= 8; |
1169 | |
1511 | |
1170 | for (j = 0; j < 8; ++j) |
1512 | for (j = 0; j < 8; ++j) |
1171 | if (inode_bits & (((ino_t)1) << (i * 8 + j))) |
1513 | if (inode_bits & (((eio_ino_t)1) << (i * 8 + j))) |
1172 | *bit++ = offs + j; |
1514 | *bit++ = offs + j; |
1173 | } |
1515 | } |
1174 | |
1516 | |
1175 | for (j = 0; j < 8; ++j) |
1517 | for (j = 0; j < 8; ++j) |
1176 | if (score_bits & (1 << j)) |
1518 | if (score_bits & (1 << j)) |
1177 | *bit++ = offsetof (eio_dirent, score) * 8 + j; |
1519 | *bit++ = offsetof (eio_dirent, score) * 8 + j; |
1178 | } |
1520 | } |
1179 | |
1521 | |
1180 | /* now actually do the sorting (a variant of MSD radix sort) */ |
1522 | /* now actually do the sorting (a variant of MSD radix sort) */ |
1181 | { |
1523 | { |
1182 | eio_dirent *base_stk [9 + sizeof (ino_t) * 8], *base; |
1524 | eio_dirent *base_stk [9 + sizeof (eio_ino_t) * 8], *base; |
1183 | eio_dirent *end_stk [9 + sizeof (ino_t) * 8], *end; |
1525 | eio_dirent *end_stk [9 + sizeof (eio_ino_t) * 8], *end; |
1184 | unsigned char *bit_stk [9 + sizeof (ino_t) * 8]; |
1526 | unsigned char *bit_stk [9 + sizeof (eio_ino_t) * 8]; |
1185 | int stk_idx = 0; |
1527 | int stk_idx = 0; |
1186 | |
1528 | |
1187 | base_stk [stk_idx] = dents; |
1529 | base_stk [stk_idx] = dents; |
1188 | end_stk [stk_idx] = dents + size; |
1530 | end_stk [stk_idx] = dents + size; |
1189 | bit_stk [stk_idx] = bit - 1; |
1531 | bit_stk [stk_idx] = bit - 1; |
… | |
… | |
1268 | } |
1610 | } |
1269 | } |
1611 | } |
1270 | } |
1612 | } |
1271 | |
1613 | |
1272 | static void |
1614 | static void |
1273 | eio_dent_sort (eio_dirent *dents, int size, signed char score_bits, ino_t inode_bits) |
1615 | eio_dent_sort (eio_dirent *dents, int size, signed char score_bits, eio_ino_t inode_bits) |
1274 | { |
1616 | { |
1275 | if (size <= 1) |
1617 | if (size <= 1) |
1276 | return; /* our insertion sort relies on size > 0 */ |
1618 | return; /* our insertion sort relies on size > 0 */ |
1277 | |
1619 | |
1278 | /* first we use a radix sort, but only for dirs >= EIO_SORT_FAST */ |
1620 | /* first we use a radix sort, but only for dirs >= EIO_SORT_FAST */ |
… | |
… | |
1286 | |
1628 | |
1287 | /* read a full directory */ |
1629 | /* read a full directory */ |
1288 | static void |
1630 | static void |
1289 | eio__scandir (eio_req *req, etp_worker *self) |
1631 | eio__scandir (eio_req *req, etp_worker *self) |
1290 | { |
1632 | { |
1291 | DIR *dirp; |
|
|
1292 | EIO_STRUCT_DIRENT *entp; |
|
|
1293 | char *name, *names; |
1633 | char *name, *names; |
1294 | int namesalloc = 4096; |
1634 | int namesalloc = 4096 - sizeof (void *) * 4; |
1295 | int namesoffs = 0; |
1635 | int namesoffs = 0; |
1296 | int flags = req->int1; |
1636 | int flags = req->int1; |
1297 | eio_dirent *dents = 0; |
1637 | eio_dirent *dents = 0; |
1298 | int dentalloc = 128; |
1638 | int dentalloc = 128; |
1299 | int dentoffs = 0; |
1639 | int dentoffs = 0; |
1300 | ino_t inode_bits = 0; |
1640 | eio_ino_t inode_bits = 0; |
|
|
1641 | #ifdef _WIN32 |
|
|
1642 | HANDLE dirp; |
|
|
1643 | WIN32_FIND_DATA entp; |
|
|
1644 | #else |
|
|
1645 | DIR *dirp; |
|
|
1646 | EIO_STRUCT_DIRENT *entp; |
|
|
1647 | #endif |
1301 | |
1648 | |
1302 | req->result = -1; |
1649 | req->result = -1; |
1303 | |
1650 | |
1304 | if (!(flags & EIO_READDIR_DENTS)) |
1651 | if (!(flags & EIO_READDIR_DENTS)) |
1305 | flags &= ~(EIO_READDIR_DIRS_FIRST | EIO_READDIR_STAT_ORDER); |
1652 | flags &= ~(EIO_READDIR_DIRS_FIRST | EIO_READDIR_STAT_ORDER); |
1306 | |
1653 | |
1307 | X_LOCK (wrklock); |
1654 | #ifdef _WIN32 |
1308 | /* the corresponding closedir is in ETP_WORKER_CLEAR */ |
1655 | { |
|
|
1656 | int len = strlen ((const char *)req->ptr1); |
|
|
1657 | char *path = malloc (MAX_PATH); |
|
|
1658 | const char *fmt; |
|
|
1659 | |
|
|
1660 | if (!len) |
|
|
1661 | fmt = "./*"; |
|
|
1662 | else if (((const char *)req->ptr1)[len - 1] == '/' || ((const char *)req->ptr1)[len - 1] == '\\') |
|
|
1663 | fmt = "%s*"; |
|
|
1664 | else |
|
|
1665 | fmt = "%s/*"; |
|
|
1666 | |
|
|
1667 | _snprintf (path, MAX_PATH, fmt, (const char *)req->ptr1); |
|
|
1668 | dirp = FindFirstFile (path, &entp); |
|
|
1669 | free (path); |
|
|
1670 | |
|
|
1671 | if (dirp == INVALID_HANDLE_VALUE) |
|
|
1672 | { |
|
|
1673 | dirp = 0; |
|
|
1674 | |
|
|
1675 | switch (GetLastError ()) |
|
|
1676 | { |
|
|
1677 | case ERROR_FILE_NOT_FOUND: |
|
|
1678 | req->result = 0; |
|
|
1679 | break; |
|
|
1680 | |
|
|
1681 | case ERROR_INVALID_NAME: |
|
|
1682 | case ERROR_PATH_NOT_FOUND: |
|
|
1683 | case ERROR_NO_MORE_FILES: |
|
|
1684 | errno = ENOENT; |
|
|
1685 | break; |
|
|
1686 | |
|
|
1687 | case ERROR_NOT_ENOUGH_MEMORY: |
|
|
1688 | errno = ENOMEM; |
|
|
1689 | break; |
|
|
1690 | |
|
|
1691 | default: |
|
|
1692 | errno = EINVAL; |
|
|
1693 | break; |
|
|
1694 | } |
|
|
1695 | } |
|
|
1696 | } |
|
|
1697 | #else |
1309 | self->dirp = dirp = opendir (req->ptr1); |
1698 | dirp = opendir (req->ptr1); |
|
|
1699 | #endif |
|
|
1700 | |
|
|
1701 | if (req->flags & EIO_FLAG_PTR1_FREE) |
|
|
1702 | free (req->ptr1); |
1310 | |
1703 | |
1311 | req->flags |= EIO_FLAG_PTR1_FREE | EIO_FLAG_PTR2_FREE; |
1704 | req->flags |= EIO_FLAG_PTR1_FREE | EIO_FLAG_PTR2_FREE; |
1312 | req->ptr1 = dents = flags ? malloc (dentalloc * sizeof (eio_dirent)) : 0; |
1705 | req->ptr1 = dents = flags ? malloc (dentalloc * sizeof (eio_dirent)) : 0; |
1313 | req->ptr2 = names = malloc (namesalloc); |
1706 | req->ptr2 = names = malloc (namesalloc); |
1314 | X_UNLOCK (wrklock); |
|
|
1315 | |
1707 | |
1316 | if (dirp && names && (!flags || dents)) |
1708 | if (dirp && names && (!flags || dents)) |
1317 | for (;;) |
1709 | for (;;) |
1318 | { |
1710 | { |
|
|
1711 | int done; |
|
|
1712 | |
|
|
1713 | #ifdef _WIN32 |
|
|
1714 | done = !dirp; |
|
|
1715 | #else |
1319 | errno = 0; |
1716 | errno = 0; |
1320 | entp = readdir (dirp); |
1717 | entp = readdir (dirp); |
|
|
1718 | done = !entp; |
|
|
1719 | #endif |
1321 | |
1720 | |
1322 | if (!entp) |
1721 | if (done) |
1323 | { |
1722 | { |
|
|
1723 | #ifndef _WIN32 |
|
|
1724 | int old_errno = errno; |
|
|
1725 | closedir (dirp); |
|
|
1726 | errno = old_errno; |
|
|
1727 | |
1324 | if (errno) |
1728 | if (errno) |
1325 | break; |
1729 | break; |
|
|
1730 | #endif |
1326 | |
1731 | |
1327 | /* sort etc. */ |
1732 | /* sort etc. */ |
1328 | req->int1 = flags; |
1733 | req->int1 = flags; |
1329 | req->result = dentoffs; |
1734 | req->result = dentoffs; |
1330 | |
1735 | |
… | |
… | |
1359 | |
1764 | |
1360 | break; |
1765 | break; |
1361 | } |
1766 | } |
1362 | |
1767 | |
1363 | /* now add the entry to our list(s) */ |
1768 | /* now add the entry to our list(s) */ |
1364 | name = entp->d_name; |
1769 | name = D_NAME (entp); |
1365 | |
1770 | |
1366 | /* skip . and .. entries */ |
1771 | /* skip . and .. entries */ |
1367 | if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2]))) |
1772 | if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2]))) |
1368 | { |
1773 | { |
1369 | int len = D_NAMLEN (entp) + 1; |
1774 | int len = D_NAMLEN (entp) + 1; |
1370 | |
1775 | |
1371 | while (ecb_expect_false (namesoffs + len > namesalloc)) |
1776 | while (ecb_expect_false (namesoffs + len > namesalloc)) |
1372 | { |
1777 | { |
1373 | namesalloc *= 2; |
1778 | namesalloc *= 2; |
1374 | X_LOCK (wrklock); |
|
|
1375 | req->ptr2 = names = realloc (names, namesalloc); |
1779 | req->ptr2 = names = realloc (names, namesalloc); |
1376 | X_UNLOCK (wrklock); |
|
|
1377 | |
1780 | |
1378 | if (!names) |
1781 | if (!names) |
1379 | break; |
1782 | break; |
1380 | } |
1783 | } |
1381 | |
1784 | |
… | |
… | |
1386 | struct eio_dirent *ent; |
1789 | struct eio_dirent *ent; |
1387 | |
1790 | |
1388 | if (ecb_expect_false (dentoffs == dentalloc)) |
1791 | if (ecb_expect_false (dentoffs == dentalloc)) |
1389 | { |
1792 | { |
1390 | dentalloc *= 2; |
1793 | dentalloc *= 2; |
1391 | X_LOCK (wrklock); |
|
|
1392 | req->ptr1 = dents = realloc (dents, dentalloc * sizeof (eio_dirent)); |
1794 | req->ptr1 = dents = realloc (dents, dentalloc * sizeof (eio_dirent)); |
1393 | X_UNLOCK (wrklock); |
|
|
1394 | |
1795 | |
1395 | if (!dents) |
1796 | if (!dents) |
1396 | break; |
1797 | break; |
1397 | } |
1798 | } |
1398 | |
1799 | |
… | |
… | |
1478 | if (EIO_CANCELLED (req)) |
1879 | if (EIO_CANCELLED (req)) |
1479 | { |
1880 | { |
1480 | errno = ECANCELED; |
1881 | errno = ECANCELED; |
1481 | break; |
1882 | break; |
1482 | } |
1883 | } |
|
|
1884 | |
|
|
1885 | #ifdef _WIN32 |
|
|
1886 | if (!FindNextFile (dirp, &entp)) |
|
|
1887 | { |
|
|
1888 | FindClose (dirp); |
|
|
1889 | dirp = 0; |
|
|
1890 | } |
|
|
1891 | #endif |
1483 | } |
1892 | } |
1484 | } |
|
|
1485 | |
|
|
1486 | #ifdef PAGESIZE |
|
|
1487 | # define eio_pagesize() PAGESIZE |
|
|
1488 | #else |
|
|
1489 | static intptr_t |
|
|
1490 | eio_pagesize (void) |
|
|
1491 | { |
|
|
1492 | static intptr_t page; |
|
|
1493 | |
|
|
1494 | if (!page) |
|
|
1495 | page = sysconf (_SC_PAGESIZE); |
|
|
1496 | |
|
|
1497 | return page; |
|
|
1498 | } |
|
|
1499 | #endif |
|
|
1500 | |
|
|
1501 | static void |
|
|
1502 | eio_page_align (void **addr, size_t *length) |
|
|
1503 | { |
|
|
1504 | intptr_t mask = eio_pagesize () - 1; |
|
|
1505 | |
|
|
1506 | /* round down addr */ |
|
|
1507 | intptr_t adj = mask & (intptr_t)*addr; |
|
|
1508 | |
|
|
1509 | *addr = (void *)((intptr_t)*addr - adj); |
|
|
1510 | *length += adj; |
|
|
1511 | |
|
|
1512 | /* round up length */ |
|
|
1513 | *length = (*length + mask) & ~mask; |
|
|
1514 | } |
|
|
1515 | |
|
|
1516 | #if !_POSIX_MEMLOCK |
|
|
1517 | # define eio__mlockall(a) ((errno = ENOSYS), -1) |
|
|
1518 | #else |
|
|
1519 | |
|
|
1520 | static int |
|
|
1521 | eio__mlockall (int flags) |
|
|
1522 | { |
|
|
1523 | #if __GLIBC__ == 2 && __GLIBC_MINOR__ <= 7 |
|
|
1524 | extern int mallopt (int, int); |
|
|
1525 | mallopt (-6, 238); /* http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=473812 */ |
|
|
1526 | #endif |
|
|
1527 | |
|
|
1528 | if (EIO_MCL_CURRENT != MCL_CURRENT |
|
|
1529 | || EIO_MCL_FUTURE != MCL_FUTURE) |
|
|
1530 | { |
|
|
1531 | flags = 0 |
|
|
1532 | | (flags & EIO_MCL_CURRENT ? MCL_CURRENT : 0) |
|
|
1533 | | (flags & EIO_MCL_FUTURE ? MCL_FUTURE : 0); |
|
|
1534 | } |
|
|
1535 | |
|
|
1536 | return mlockall (flags); |
|
|
1537 | } |
|
|
1538 | #endif |
|
|
1539 | |
|
|
1540 | #if !_POSIX_MEMLOCK_RANGE |
|
|
1541 | # define eio__mlock(a,b) ((errno = ENOSYS), -1) |
|
|
1542 | #else |
|
|
1543 | |
|
|
1544 | static int |
|
|
1545 | eio__mlock (void *addr, size_t length) |
|
|
1546 | { |
|
|
1547 | eio_page_align (&addr, &length); |
|
|
1548 | |
|
|
1549 | return mlock (addr, length); |
|
|
1550 | } |
|
|
1551 | |
|
|
1552 | #endif |
|
|
1553 | |
|
|
1554 | #if !(_POSIX_MAPPED_FILES && _POSIX_SYNCHRONIZED_IO) |
|
|
1555 | # define eio__msync(a,b,c) ((errno = ENOSYS), -1) |
|
|
1556 | #else |
|
|
1557 | |
|
|
1558 | static int |
|
|
1559 | eio__msync (void *mem, size_t len, int flags) |
|
|
1560 | { |
|
|
1561 | eio_page_align (&mem, &len); |
|
|
1562 | |
|
|
1563 | if (EIO_MS_ASYNC != MS_SYNC |
|
|
1564 | || EIO_MS_INVALIDATE != MS_INVALIDATE |
|
|
1565 | || EIO_MS_SYNC != MS_SYNC) |
|
|
1566 | { |
|
|
1567 | flags = 0 |
|
|
1568 | | (flags & EIO_MS_ASYNC ? MS_ASYNC : 0) |
|
|
1569 | | (flags & EIO_MS_INVALIDATE ? MS_INVALIDATE : 0) |
|
|
1570 | | (flags & EIO_MS_SYNC ? MS_SYNC : 0); |
|
|
1571 | } |
|
|
1572 | |
|
|
1573 | return msync (mem, len, flags); |
|
|
1574 | } |
|
|
1575 | |
|
|
1576 | #endif |
|
|
1577 | |
|
|
1578 | static int |
|
|
1579 | eio__mtouch (eio_req *req) |
|
|
1580 | { |
|
|
1581 | void *mem = req->ptr2; |
|
|
1582 | size_t len = req->size; |
|
|
1583 | int flags = req->int1; |
|
|
1584 | |
|
|
1585 | eio_page_align (&mem, &len); |
|
|
1586 | |
|
|
1587 | { |
|
|
1588 | intptr_t addr = (intptr_t)mem; |
|
|
1589 | intptr_t end = addr + len; |
|
|
1590 | intptr_t page = eio_pagesize (); |
|
|
1591 | |
|
|
1592 | if (addr < end) |
|
|
1593 | if (flags & EIO_MT_MODIFY) /* modify */ |
|
|
1594 | do { *((volatile sig_atomic_t *)addr) |= 0; } while ((addr += page) < len && !EIO_CANCELLED (req)); |
|
|
1595 | else |
|
|
1596 | do { *((volatile sig_atomic_t *)addr) ; } while ((addr += page) < len && !EIO_CANCELLED (req)); |
|
|
1597 | } |
|
|
1598 | |
|
|
1599 | return 0; |
|
|
1600 | } |
1893 | } |
1601 | |
1894 | |
1602 | /*****************************************************************************/ |
1895 | /*****************************************************************************/ |
1603 | |
1896 | |
1604 | #define ALLOC(len) \ |
1897 | #define ALLOC(len) \ |
… | |
… | |
1620 | { |
1913 | { |
1621 | ETP_REQ *req; |
1914 | ETP_REQ *req; |
1622 | struct timespec ts; |
1915 | struct timespec ts; |
1623 | etp_worker *self = (etp_worker *)thr_arg; |
1916 | etp_worker *self = (etp_worker *)thr_arg; |
1624 | |
1917 | |
1625 | /* try to distribute timeouts somewhat randomly */ |
1918 | /* try to distribute timeouts somewhat evenly */ |
1626 | ts.tv_nsec = ((unsigned long)self & 1023UL) * (1000000000UL / 1024UL); |
1919 | ts.tv_nsec = ((unsigned long)self & 1023UL) * (1000000000UL / 1024UL); |
1627 | |
1920 | |
1628 | for (;;) |
1921 | for (;;) |
1629 | { |
1922 | { |
|
|
1923 | ts.tv_sec = 0; |
|
|
1924 | |
1630 | X_LOCK (reqlock); |
1925 | X_LOCK (reqlock); |
1631 | |
1926 | |
1632 | for (;;) |
1927 | for (;;) |
1633 | { |
1928 | { |
1634 | self->req = req = reqq_shift (&req_queue); |
1929 | self->req = req = reqq_shift (&req_queue); |
1635 | |
1930 | |
1636 | if (req) |
1931 | if (req) |
1637 | break; |
1932 | break; |
1638 | |
1933 | |
|
|
1934 | if (ts.tv_sec == 1) /* no request, but timeout detected, let's quit */ |
|
|
1935 | { |
|
|
1936 | X_UNLOCK (reqlock); |
|
|
1937 | X_LOCK (wrklock); |
|
|
1938 | --started; |
|
|
1939 | X_UNLOCK (wrklock); |
|
|
1940 | goto quit; |
|
|
1941 | } |
|
|
1942 | |
1639 | ++idle; |
1943 | ++idle; |
1640 | |
1944 | |
1641 | ts.tv_sec = time (0) + idle_timeout; |
1945 | if (idle <= max_idle) |
1642 | if (X_COND_TIMEDWAIT (reqwait, reqlock, ts) == ETIMEDOUT) |
1946 | /* we are allowed to idle, so do so without any timeout */ |
|
|
1947 | X_COND_WAIT (reqwait, reqlock); |
|
|
1948 | else |
1643 | { |
1949 | { |
1644 | if (idle > max_idle) |
1950 | /* initialise timeout once */ |
1645 | { |
1951 | if (!ts.tv_sec) |
1646 | --idle; |
1952 | ts.tv_sec = time (0) + idle_timeout; |
1647 | X_UNLOCK (reqlock); |
|
|
1648 | X_LOCK (wrklock); |
|
|
1649 | --started; |
|
|
1650 | X_UNLOCK (wrklock); |
|
|
1651 | goto quit; |
|
|
1652 | } |
|
|
1653 | |
1953 | |
1654 | /* we are allowed to idle, so do so without any timeout */ |
|
|
1655 | X_COND_WAIT (reqwait, reqlock); |
1954 | if (X_COND_TIMEDWAIT (reqwait, reqlock, ts) == ETIMEDOUT) |
|
|
1955 | ts.tv_sec = 1; /* assuming this is not a value computed above.,.. */ |
1656 | } |
1956 | } |
1657 | |
1957 | |
1658 | --idle; |
1958 | --idle; |
1659 | } |
1959 | } |
1660 | |
1960 | |
… | |
… | |
1663 | X_UNLOCK (reqlock); |
1963 | X_UNLOCK (reqlock); |
1664 | |
1964 | |
1665 | if (req->type < 0) |
1965 | if (req->type < 0) |
1666 | goto quit; |
1966 | goto quit; |
1667 | |
1967 | |
1668 | if (!EIO_CANCELLED (req)) |
|
|
1669 | ETP_EXECUTE (self, req); |
1968 | ETP_EXECUTE (self, req); |
1670 | |
1969 | |
1671 | X_LOCK (reslock); |
1970 | X_LOCK (reslock); |
1672 | |
1971 | |
1673 | ++npending; |
1972 | ++npending; |
1674 | |
1973 | |
… | |
… | |
1692 | /*****************************************************************************/ |
1991 | /*****************************************************************************/ |
1693 | |
1992 | |
1694 | int ecb_cold |
1993 | int ecb_cold |
1695 | eio_init (void (*want_poll)(void), void (*done_poll)(void)) |
1994 | eio_init (void (*want_poll)(void), void (*done_poll)(void)) |
1696 | { |
1995 | { |
|
|
1996 | #if !HAVE_PREADWRITE |
|
|
1997 | X_MUTEX_CREATE (preadwritelock); |
|
|
1998 | #endif |
|
|
1999 | |
1697 | return etp_init (want_poll, done_poll); |
2000 | return etp_init (want_poll, done_poll); |
1698 | } |
2001 | } |
1699 | |
2002 | |
1700 | ECB_INLINE void |
2003 | ecb_inline void |
1701 | eio_api_destroy (eio_req *req) |
2004 | eio_api_destroy (eio_req *req) |
1702 | { |
2005 | { |
1703 | free (req); |
2006 | free (req); |
1704 | } |
2007 | } |
1705 | |
2008 | |
… | |
… | |
1728 | } |
2031 | } |
1729 | |
2032 | |
1730 | static void |
2033 | static void |
1731 | eio_execute (etp_worker *self, eio_req *req) |
2034 | eio_execute (etp_worker *self, eio_req *req) |
1732 | { |
2035 | { |
|
|
2036 | if (ecb_expect_false (EIO_CANCELLED (req))) |
|
|
2037 | { |
|
|
2038 | req->result = -1; |
|
|
2039 | req->errorno = ECANCELED; |
|
|
2040 | return; |
|
|
2041 | } |
|
|
2042 | |
1733 | switch (req->type) |
2043 | switch (req->type) |
1734 | { |
2044 | { |
1735 | case EIO_READ: ALLOC (req->size); |
2045 | case EIO_READ: ALLOC (req->size); |
1736 | req->result = req->offs >= 0 |
2046 | req->result = req->offs >= 0 |
1737 | ? pread (req->int1, req->ptr2, req->size, req->offs) |
2047 | ? pread (req->int1, req->ptr2, req->size, req->offs) |
… | |
… | |
1739 | case EIO_WRITE: req->result = req->offs >= 0 |
2049 | case EIO_WRITE: req->result = req->offs >= 0 |
1740 | ? pwrite (req->int1, req->ptr2, req->size, req->offs) |
2050 | ? pwrite (req->int1, req->ptr2, req->size, req->offs) |
1741 | : write (req->int1, req->ptr2, req->size); break; |
2051 | : write (req->int1, req->ptr2, req->size); break; |
1742 | |
2052 | |
1743 | case EIO_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break; |
2053 | case EIO_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break; |
1744 | case EIO_SENDFILE: req->result = eio__sendfile (req->int1, req->int2, req->offs, req->size, self); break; |
2054 | case EIO_SENDFILE: req->result = eio__sendfile (req->int1, req->int2, req->offs, req->size); break; |
1745 | |
2055 | |
1746 | case EIO_STAT: ALLOC (sizeof (EIO_STRUCT_STAT)); |
2056 | case EIO_STAT: ALLOC (sizeof (EIO_STRUCT_STAT)); |
1747 | req->result = stat (req->ptr1, (EIO_STRUCT_STAT *)req->ptr2); break; |
2057 | req->result = stat (req->ptr1, (EIO_STRUCT_STAT *)req->ptr2); break; |
1748 | case EIO_LSTAT: ALLOC (sizeof (EIO_STRUCT_STAT)); |
2058 | case EIO_LSTAT: ALLOC (sizeof (EIO_STRUCT_STAT)); |
1749 | req->result = lstat (req->ptr1, (EIO_STRUCT_STAT *)req->ptr2); break; |
2059 | req->result = lstat (req->ptr1, (EIO_STRUCT_STAT *)req->ptr2); break; |
… | |
… | |
1771 | case EIO_RENAME: req->result = rename (req->ptr1, req->ptr2); break; |
2081 | case EIO_RENAME: req->result = rename (req->ptr1, req->ptr2); break; |
1772 | case EIO_LINK: req->result = link (req->ptr1, req->ptr2); break; |
2082 | case EIO_LINK: req->result = link (req->ptr1, req->ptr2); break; |
1773 | case EIO_SYMLINK: req->result = symlink (req->ptr1, req->ptr2); break; |
2083 | case EIO_SYMLINK: req->result = symlink (req->ptr1, req->ptr2); break; |
1774 | case EIO_MKNOD: req->result = mknod (req->ptr1, (mode_t)req->int2, (dev_t)req->offs); break; |
2084 | case EIO_MKNOD: req->result = mknod (req->ptr1, (mode_t)req->int2, (dev_t)req->offs); break; |
1775 | |
2085 | |
|
|
2086 | case EIO_REALPATH: eio__realpath (req, self); break; |
|
|
2087 | |
1776 | case EIO_READLINK: ALLOC (PATH_MAX); |
2088 | case EIO_READLINK: ALLOC (PATH_MAX); |
1777 | req->result = readlink (req->ptr1, req->ptr2, PATH_MAX); break; |
2089 | req->result = readlink (req->ptr1, req->ptr2, PATH_MAX); break; |
1778 | |
2090 | |
1779 | case EIO_SYNC: req->result = 0; sync (); break; |
2091 | case EIO_SYNC: req->result = 0; sync (); break; |
1780 | case EIO_FSYNC: req->result = fsync (req->int1); break; |
2092 | case EIO_FSYNC: req->result = fsync (req->int1); break; |
1781 | case EIO_FDATASYNC: req->result = fdatasync (req->int1); break; |
2093 | case EIO_FDATASYNC: req->result = fdatasync (req->int1); break; |
|
|
2094 | case EIO_SYNCFS: req->result = eio__syncfs (req->int1); break; |
|
|
2095 | case EIO_SYNC_FILE_RANGE: req->result = eio__sync_file_range (req->int1, req->offs, req->size, req->int2); break; |
1782 | case EIO_MSYNC: req->result = eio__msync (req->ptr2, req->size, req->int1); break; |
2096 | case EIO_MSYNC: req->result = eio__msync (req->ptr2, req->size, req->int1); break; |
1783 | case EIO_MTOUCH: req->result = eio__mtouch (req); break; |
2097 | case EIO_MTOUCH: req->result = eio__mtouch (req); break; |
1784 | case EIO_MLOCK: req->result = eio__mlock (req->ptr2, req->size); break; |
2098 | case EIO_MLOCK: req->result = eio__mlock (req->ptr2, req->size); break; |
1785 | case EIO_MLOCKALL: req->result = eio__mlockall (req->int1); break; |
2099 | case EIO_MLOCKALL: req->result = eio__mlockall (req->int1); break; |
1786 | case EIO_SYNC_FILE_RANGE: req->result = eio__sync_file_range (req->int1, req->offs, req->size, req->int2); break; |
2100 | case EIO_FALLOCATE: req->result = eio__fallocate (req->int1, req->int2, req->offs, req->size); break; |
1787 | |
2101 | |
1788 | case EIO_READDIR: eio__scandir (req, self); break; |
2102 | case EIO_READDIR: eio__scandir (req, self); break; |
1789 | |
2103 | |
1790 | case EIO_BUSY: |
2104 | case EIO_BUSY: |
1791 | #ifdef _WIN32 |
2105 | #ifdef _WIN32 |
… | |
… | |
1871 | eio_req *eio_msync (void *addr, size_t length, int flags, int pri, eio_cb cb, void *data) |
2185 | eio_req *eio_msync (void *addr, size_t length, int flags, int pri, eio_cb cb, void *data) |
1872 | { |
2186 | { |
1873 | REQ (EIO_MSYNC); req->ptr2 = addr; req->size = length; req->int1 = flags; SEND; |
2187 | REQ (EIO_MSYNC); req->ptr2 = addr; req->size = length; req->int1 = flags; SEND; |
1874 | } |
2188 | } |
1875 | |
2189 | |
|
|
2190 | eio_req *eio_fdatasync (int fd, int pri, eio_cb cb, void *data) |
|
|
2191 | { |
|
|
2192 | REQ (EIO_FDATASYNC); req->int1 = fd; SEND; |
|
|
2193 | } |
|
|
2194 | |
|
|
2195 | eio_req *eio_syncfs (int fd, int pri, eio_cb cb, void *data) |
|
|
2196 | { |
|
|
2197 | REQ (EIO_SYNCFS); req->int1 = fd; SEND; |
|
|
2198 | } |
|
|
2199 | |
|
|
2200 | eio_req *eio_sync_file_range (int fd, off_t offset, size_t nbytes, unsigned int flags, int pri, eio_cb cb, void *data) |
|
|
2201 | { |
|
|
2202 | REQ (EIO_SYNC_FILE_RANGE); req->int1 = fd; req->offs = offset; req->size = nbytes; req->int2 = flags; SEND; |
|
|
2203 | } |
|
|
2204 | |
1876 | eio_req *eio_mtouch (void *addr, size_t length, int flags, int pri, eio_cb cb, void *data) |
2205 | eio_req *eio_mtouch (void *addr, size_t length, int flags, int pri, eio_cb cb, void *data) |
1877 | { |
2206 | { |
1878 | REQ (EIO_MTOUCH); req->ptr2 = addr; req->size = length; req->int1 = flags; SEND; |
2207 | REQ (EIO_MTOUCH); req->ptr2 = addr; req->size = length; req->int1 = flags; SEND; |
1879 | } |
2208 | } |
1880 | |
2209 | |
… | |
… | |
1886 | eio_req *eio_mlockall (int flags, int pri, eio_cb cb, void *data) |
2215 | eio_req *eio_mlockall (int flags, int pri, eio_cb cb, void *data) |
1887 | { |
2216 | { |
1888 | REQ (EIO_MLOCKALL); req->int1 = flags; SEND; |
2217 | REQ (EIO_MLOCKALL); req->int1 = flags; SEND; |
1889 | } |
2218 | } |
1890 | |
2219 | |
1891 | eio_req *eio_sync_file_range (int fd, off_t offset, size_t nbytes, unsigned int flags, int pri, eio_cb cb, void *data) |
2220 | eio_req *eio_fallocate (int fd, int mode, off_t offset, size_t len, int pri, eio_cb cb, void *data) |
1892 | { |
2221 | { |
1893 | REQ (EIO_SYNC_FILE_RANGE); req->int1 = fd; req->offs = offset; req->size = nbytes; req->int2 = flags; SEND; |
2222 | REQ (EIO_FALLOCATE); req->int1 = fd; req->int2 = mode; req->offs = offset; req->size = len; SEND; |
1894 | } |
|
|
1895 | |
|
|
1896 | eio_req *eio_fdatasync (int fd, int pri, eio_cb cb, void *data) |
|
|
1897 | { |
|
|
1898 | REQ (EIO_FDATASYNC); req->int1 = fd; SEND; |
|
|
1899 | } |
2223 | } |
1900 | |
2224 | |
1901 | eio_req *eio_close (int fd, int pri, eio_cb cb, void *data) |
2225 | eio_req *eio_close (int fd, int pri, eio_cb cb, void *data) |
1902 | { |
2226 | { |
1903 | REQ (EIO_CLOSE); req->int1 = fd; SEND; |
2227 | REQ (EIO_CLOSE); req->int1 = fd; SEND; |
… | |
… | |
1941 | eio_req *eio_fchmod (int fd, mode_t mode, int pri, eio_cb cb, void *data) |
2265 | eio_req *eio_fchmod (int fd, mode_t mode, int pri, eio_cb cb, void *data) |
1942 | { |
2266 | { |
1943 | REQ (EIO_FCHMOD); req->int1 = fd; req->int2 = (long)mode; SEND; |
2267 | REQ (EIO_FCHMOD); req->int1 = fd; req->int2 = (long)mode; SEND; |
1944 | } |
2268 | } |
1945 | |
2269 | |
1946 | eio_req *eio_fchown (int fd, uid_t uid, gid_t gid, int pri, eio_cb cb, void *data) |
2270 | eio_req *eio_fchown (int fd, eio_uid_t uid, eio_gid_t gid, int pri, eio_cb cb, void *data) |
1947 | { |
2271 | { |
1948 | REQ (EIO_FCHOWN); req->int1 = fd; req->int2 = (long)uid; req->int3 = (long)gid; SEND; |
2272 | REQ (EIO_FCHOWN); req->int1 = fd; req->int2 = (long)uid; req->int3 = (long)gid; SEND; |
1949 | } |
2273 | } |
1950 | |
2274 | |
1951 | eio_req *eio_dup2 (int fd, int fd2, int pri, eio_cb cb, void *data) |
2275 | eio_req *eio_dup2 (int fd, int fd2, int pri, eio_cb cb, void *data) |
… | |
… | |
1971 | eio_req *eio_truncate (const char *path, off_t offset, int pri, eio_cb cb, void *data) |
2295 | eio_req *eio_truncate (const char *path, off_t offset, int pri, eio_cb cb, void *data) |
1972 | { |
2296 | { |
1973 | REQ (EIO_TRUNCATE); PATH; req->offs = offset; SEND; |
2297 | REQ (EIO_TRUNCATE); PATH; req->offs = offset; SEND; |
1974 | } |
2298 | } |
1975 | |
2299 | |
1976 | eio_req *eio_chown (const char *path, uid_t uid, gid_t gid, int pri, eio_cb cb, void *data) |
2300 | eio_req *eio_chown (const char *path, eio_uid_t uid, eio_gid_t gid, int pri, eio_cb cb, void *data) |
1977 | { |
2301 | { |
1978 | REQ (EIO_CHOWN); PATH; req->int2 = (long)uid; req->int3 = (long)gid; SEND; |
2302 | REQ (EIO_CHOWN); PATH; req->int2 = (long)uid; req->int3 = (long)gid; SEND; |
1979 | } |
2303 | } |
1980 | |
2304 | |
1981 | eio_req *eio_chmod (const char *path, mode_t mode, int pri, eio_cb cb, void *data) |
2305 | eio_req *eio_chmod (const char *path, mode_t mode, int pri, eio_cb cb, void *data) |
… | |
… | |
1995 | } |
2319 | } |
1996 | |
2320 | |
1997 | eio_req *eio_readlink (const char *path, int pri, eio_cb cb, void *data) |
2321 | eio_req *eio_readlink (const char *path, int pri, eio_cb cb, void *data) |
1998 | { |
2322 | { |
1999 | return eio__1path (EIO_READLINK, path, pri, cb, data); |
2323 | return eio__1path (EIO_READLINK, path, pri, cb, data); |
|
|
2324 | } |
|
|
2325 | |
|
|
2326 | eio_req *eio_realpath (const char *path, int pri, eio_cb cb, void *data) |
|
|
2327 | { |
|
|
2328 | return eio__1path (EIO_REALPATH, path, pri, cb, data); |
2000 | } |
2329 | } |
2001 | |
2330 | |
2002 | eio_req *eio_stat (const char *path, int pri, eio_cb cb, void *data) |
2331 | eio_req *eio_stat (const char *path, int pri, eio_cb cb, void *data) |
2003 | { |
2332 | { |
2004 | return eio__1path (EIO_STAT, path, pri, cb, data); |
2333 | return eio__1path (EIO_STAT, path, pri, cb, data); |
… | |
… | |
2123 | } |
2452 | } |
2124 | |
2453 | |
2125 | /*****************************************************************************/ |
2454 | /*****************************************************************************/ |
2126 | /* misc garbage */ |
2455 | /* misc garbage */ |
2127 | |
2456 | |
2128 | ssize_t |
2457 | eio_ssize_t |
2129 | eio_sendfile_sync (int ofd, int ifd, off_t offset, size_t count) |
2458 | eio_sendfile_sync (int ofd, int ifd, off_t offset, size_t count) |
2130 | { |
2459 | { |
2131 | etp_worker wrk; |
|
|
2132 | ssize_t ret; |
|
|
2133 | |
|
|
2134 | wrk.dbuf = 0; |
|
|
2135 | |
|
|
2136 | ret = eio__sendfile (ofd, ifd, offset, count, &wrk); |
2460 | return eio__sendfile (ofd, ifd, offset, count); |
2137 | |
|
|
2138 | if (wrk.dbuf) |
|
|
2139 | free (wrk.dbuf); |
|
|
2140 | |
|
|
2141 | return ret; |
|
|
2142 | } |
2461 | } |
2143 | |
2462 | |