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67 | use base 'Exporter'; |
67 | use base 'Exporter'; |
68 | |
68 | |
69 | use Fcntl (); |
69 | use Fcntl (); |
70 | |
70 | |
71 | BEGIN { |
71 | BEGIN { |
72 | $VERSION = '1.73'; |
72 | $VERSION = '1.8'; |
73 | |
73 | |
74 | @EXPORT = qw(aio_sendfile aio_read aio_write aio_open aio_close aio_stat |
74 | @EXPORT = qw(aio_sendfile aio_read aio_write aio_open aio_close aio_stat |
75 | aio_lstat aio_unlink aio_rmdir aio_readdir aio_scandir aio_symlink |
75 | aio_lstat aio_unlink aio_rmdir aio_readdir aio_scandir aio_symlink |
76 | aio_fsync aio_fdatasync aio_readahead); |
76 | aio_fsync aio_fdatasync aio_readahead aio_rename aio_link aio_move); |
77 | @EXPORT_OK = qw(poll_fileno poll_cb min_parallel max_parallel |
77 | @EXPORT_OK = qw(poll_fileno poll_cb min_parallel max_parallel |
78 | max_outstanding nreqs); |
78 | max_outstanding nreqs); |
79 | |
79 | |
80 | require XSLoader; |
80 | require XSLoader; |
81 | XSLoader::load IO::AIO, $VERSION; |
81 | XSLoader::load IO::AIO, $VERSION; |
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168 | aio_read $fh, 7, 15, $buffer, 0, sub { |
168 | aio_read $fh, 7, 15, $buffer, 0, sub { |
169 | $_[0] > 0 or die "read error: $!"; |
169 | $_[0] > 0 or die "read error: $!"; |
170 | print "read $_[0] bytes: <$buffer>\n"; |
170 | print "read $_[0] bytes: <$buffer>\n"; |
171 | }; |
171 | }; |
172 | |
172 | |
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173 | =item aio_move $srcpath, $dstpath, $callback->($status) |
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174 | |
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175 | [EXPERIMENTAL] |
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176 | |
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177 | Try to move the I<file> (directories not supported as either source or destination) |
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178 | from C<$srcpath> to C<$dstpath> and call the callback with the C<0> (error) or C<-1> ok. |
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179 | |
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180 | This is a composite request that tries to rename(2) the file first. If |
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181 | rename files with C<EXDEV>, it creates the destination file with mode 0200 |
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182 | and copies the contents of the source file into it using C<aio_sendfile>, |
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183 | followed by restoring atime, mtime, access mode and uid/gid, in that |
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184 | order, and unlinking the C<$srcpath>. |
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185 | |
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186 | If an error occurs, the partial destination file will be unlinked, if |
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187 | possible, except when setting atime, mtime, access mode and uid/gid, where |
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188 | errors are being ignored. |
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189 | |
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190 | =cut |
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191 | |
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192 | sub aio_move($$$) { |
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193 | my ($src, $dst, $cb) = @_; |
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194 | |
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195 | aio_rename $src, $dst, sub { |
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196 | if ($_[0] && $! == Errno::EXDEV) { |
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197 | aio_open $src, O_RDONLY, 0, sub { |
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198 | if (my $src_fh = $_[0]) { |
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199 | my @stat = stat $src_fh; |
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200 | |
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201 | aio_open $dst, O_WRONLY, 0200, sub { |
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202 | if (my $dst_fh = $_[0]) { |
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203 | aio_sendfile $dst_fh, $src_fh, 0, $stat[7], sub { |
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204 | close $src_fh; |
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205 | |
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206 | if ($_[0] == $stat[7]) { |
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207 | utime $stat[8], $stat[9], $dst; |
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208 | chmod $stat[2] & 07777, $dst_fh; |
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209 | chown $stat[4], $stat[5], $dst_fh; |
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210 | close $dst_fh; |
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211 | |
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212 | aio_unlink $src, sub { |
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213 | $cb->($_[0]); |
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214 | }; |
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215 | } else { |
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216 | my $errno = $!; |
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217 | aio_unlink $dst, sub { |
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218 | $! = $errno; |
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219 | $cb->(-1); |
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220 | }; |
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221 | } |
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222 | }; |
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223 | } else { |
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224 | $cb->(-1); |
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225 | } |
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226 | }, |
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227 | |
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228 | } else { |
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229 | $cb->(-1); |
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230 | } |
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231 | }; |
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232 | } else { |
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233 | $cb->($_[0]); |
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234 | } |
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235 | }; |
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236 | } |
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237 | |
173 | =item aio_sendfile $out_fh, $in_fh, $in_offset, $length, $callback->($retval) |
238 | =item aio_sendfile $out_fh, $in_fh, $in_offset, $length, $callback->($retval) |
174 | |
239 | |
175 | Tries to copy C<$length> bytes from C<$in_fh> to C<$out_fh>. It starts |
240 | Tries to copy C<$length> bytes from C<$in_fh> to C<$out_fh>. It starts |
176 | reading at byte offset C<$in_offset>, and starts writing at the current |
241 | reading at byte offset C<$in_offset>, and starts writing at the current |
177 | file offset of C<$out_fh>. Because of that, it is not safe to issue more |
242 | file offset of C<$out_fh>. Because of that, it is not safe to issue more |
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231 | |
296 | |
232 | =item aio_unlink $pathname, $callback->($status) |
297 | =item aio_unlink $pathname, $callback->($status) |
233 | |
298 | |
234 | Asynchronously unlink (delete) a file and call the callback with the |
299 | Asynchronously unlink (delete) a file and call the callback with the |
235 | result code. |
300 | result code. |
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301 | |
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302 | =item aio_link $srcpath, $dstpath, $callback->($status) |
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303 | |
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304 | Asynchronously create a new link to the existing object at C<$srcpath> at |
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305 | the path C<$dstpath> and call the callback with the result code. |
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306 | |
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307 | =item aio_symlink $srcpath, $dstpath, $callback->($status) |
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308 | |
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309 | Asynchronously create a new symbolic link to the existing object at C<$srcpath> at |
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310 | the path C<$dstpath> and call the callback with the result code. |
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311 | |
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312 | =item aio_rename $srcpath, $dstpath, $callback->($status) |
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313 | |
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314 | Asynchronously rename the object at C<$srcpath> to C<$dstpath>, just as |
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315 | rename(2) and call the callback with the result code. |
236 | |
316 | |
237 | =item aio_rmdir $pathname, $callback->($status) |
317 | =item aio_rmdir $pathname, $callback->($status) |
238 | |
318 | |
239 | Asynchronously rmdir (delete) a directory and call the callback with the |
319 | Asynchronously rmdir (delete) a directory and call the callback with the |
240 | result code. |
320 | result code. |