| 1 | Added a pipe from the generator to the receiver that communicates |
| 2 | what basis file we used to generate the file data (if it was not |
| 3 | the default name). This optimizes away the basis-file search in |
| 4 | the receiver and makes future options that do more basis-file |
| 5 | searching more efficient (such as the --fuzzy option and the |
| 6 | support for multiple --compare-dest options). |
| 7 | |
| 8 | You must run "make proto" before compiling. |
| 9 | |
| 10 | --- orig/generator.c 2004-09-20 19:50:13 |
| 11 | +++ generator.c 2004-09-20 19:57:58 |
| 12 | @@ -254,14 +254,15 @@ static void generate_and_send_sums(int f |
| 13 | * out. It might be wrong. |
| 14 | */ |
| 15 | static void recv_generator(char *fname, struct file_struct *file, int i, |
| 16 | - int f_out) |
| 17 | + int f_out, int f_out_name) |
| 18 | { |
| 19 | - int fd, f_copy; |
| 20 | + int fd = -1, f_copy; |
| 21 | STRUCT_STAT st, partial_st; |
| 22 | struct file_struct *back_file; |
| 23 | int statret, stat_errno; |
| 24 | char *fnamecmp, *partialptr, *backupptr; |
| 25 | char fnamecmpbuf[MAXPATHLEN]; |
| 26 | + uchar fnamecmp_type; |
| 27 | |
| 28 | if (list_only) |
| 29 | return; |
| 30 | @@ -423,6 +424,7 @@ static void recv_generator(char *fname, |
| 31 | } |
| 32 | |
| 33 | fnamecmp = fname; |
| 34 | + fnamecmp_type = G2R_FNAME; |
| 35 | |
| 36 | if (statret == -1 && compare_dest != NULL) { |
| 37 | /* try the file at compare_dest instead */ |
| 38 | @@ -439,10 +441,14 @@ static void recv_generator(char *fname, |
| 39 | safe_fname(fname)); |
| 40 | } |
| 41 | fnamecmp = fnamecmpbuf; |
| 42 | + fnamecmp_type = 0; |
| 43 | } |
| 44 | } else |
| 45 | #endif |
| 46 | + { |
| 47 | fnamecmp = fnamecmpbuf; |
| 48 | + fnamecmp_type = 0; |
| 49 | + } |
| 50 | statret = 0; |
| 51 | } |
| 52 | } |
| 53 | @@ -465,11 +471,9 @@ static void recv_generator(char *fname, |
| 54 | if (statret == -1) { |
| 55 | if (preserve_hard_links && hard_link_check(file, HL_SKIP)) |
| 56 | return; |
| 57 | - if (stat_errno == ENOENT) { |
| 58 | - write_int(f_out,i); |
| 59 | - if (!dry_run && !read_batch) |
| 60 | - write_sum_head(f_out, NULL); |
| 61 | - } else if (verbose > 1) { |
| 62 | + if (stat_errno == ENOENT) |
| 63 | + goto notify_others; |
| 64 | + if (verbose > 1) { |
| 65 | rsyserr(FERROR, stat_errno, |
| 66 | "recv_generator: failed to stat %s", |
| 67 | full_fname(fname)); |
| 68 | @@ -477,13 +481,13 @@ static void recv_generator(char *fname, |
| 69 | return; |
| 70 | } |
| 71 | |
| 72 | - if (opt_ignore_existing && fnamecmp == fname) { |
| 73 | + if (opt_ignore_existing && fnamecmp_type == G2R_FNAME) { |
| 74 | if (verbose > 1) |
| 75 | rprintf(FINFO, "%s exists\n", safe_fname(fname)); |
| 76 | return; |
| 77 | } |
| 78 | |
| 79 | - if (update_only && fnamecmp == fname |
| 80 | + if (update_only && fnamecmp_type == G2R_FNAME |
| 81 | && cmp_modtime(st.st_mtime, file->modtime) > 0) { |
| 82 | if (verbose > 1) |
| 83 | rprintf(FINFO, "%s is newer\n", safe_fname(fname)); |
| 84 | @@ -491,26 +495,23 @@ static void recv_generator(char *fname, |
| 85 | } |
| 86 | |
| 87 | if (skip_file(fnamecmp, file, &st)) { |
| 88 | - if (fnamecmp == fname) |
| 89 | + if (fnamecmp_type == G2R_FNAME) |
| 90 | set_perms(fname, file, &st, PERMS_REPORT); |
| 91 | return; |
| 92 | } |
| 93 | |
| 94 | prepare_to_open: |
| 95 | - if (dry_run || read_batch) { |
| 96 | - write_int(f_out,i); |
| 97 | - return; |
| 98 | - } |
| 99 | - |
| 100 | - if (whole_file > 0) { |
| 101 | - write_int(f_out,i); |
| 102 | - write_sum_head(f_out, NULL); |
| 103 | - return; |
| 104 | + if (dry_run || whole_file) { |
| 105 | + statret = -1; |
| 106 | + goto notify_others; |
| 107 | } |
| 108 | + if (read_batch) |
| 109 | + goto notify_others; |
| 110 | |
| 111 | if (partialptr) { |
| 112 | st = partial_st; |
| 113 | fnamecmp = partialptr; |
| 114 | + fnamecmp_type = G2R_PARTIAL_DIR; |
| 115 | } |
| 116 | |
| 117 | /* open the file */ |
| 118 | @@ -523,9 +524,8 @@ prepare_to_open: |
| 119 | /* pretend the file didn't exist */ |
| 120 | if (preserve_hard_links && hard_link_check(file, HL_SKIP)) |
| 121 | return; |
| 122 | - write_int(f_out,i); |
| 123 | - write_sum_head(f_out, NULL); |
| 124 | - return; |
| 125 | + statret = -1; |
| 126 | + goto notify_others; |
| 127 | } |
| 128 | |
| 129 | if (inplace && make_backups) { |
| 130 | @@ -552,6 +552,7 @@ prepare_to_open: |
| 131 | close(fd); |
| 132 | return; |
| 133 | } |
| 134 | + fnamecmp_type = G2R_BACKUP; |
| 135 | } else { |
| 136 | backupptr = NULL; |
| 137 | back_file = NULL; |
| 138 | @@ -566,22 +567,38 @@ prepare_to_open: |
| 139 | if (verbose > 2) |
| 140 | rprintf(FINFO, "generating and sending sums for %d\n", i); |
| 141 | |
| 142 | - write_int(f_out,i); |
| 143 | - generate_and_send_sums(fd, st.st_size, f_out, f_copy); |
| 144 | - |
| 145 | - if (f_copy >= 0) { |
| 146 | - close(f_copy); |
| 147 | - set_perms(backupptr, back_file, NULL, 0); |
| 148 | - if (verbose > 1) |
| 149 | - rprintf(FINFO, "backed up %s to %s\n", fname, backupptr); |
| 150 | - free(back_file); |
| 151 | +notify_others: |
| 152 | + if (f_out_name >= 0) { |
| 153 | + write_byte(f_out_name, fnamecmp_type); |
| 154 | + io_flush(NORMAL_FLUSH); /* XXX make this more efficient! */ |
| 155 | } |
| 156 | |
| 157 | - close(fd); |
| 158 | + write_int(f_out, i); |
| 159 | + |
| 160 | + if (dry_run || read_batch) |
| 161 | + return; |
| 162 | + |
| 163 | + if (statret == 0) { |
| 164 | + generate_and_send_sums(fd, st.st_size, f_out, f_copy); |
| 165 | + |
| 166 | + if (f_copy >= 0) { |
| 167 | + close(f_copy); |
| 168 | + set_perms(backupptr, back_file, NULL, 0); |
| 169 | + if (verbose > 1) { |
| 170 | + rprintf(FINFO, "backed up %s to %s\n", |
| 171 | + fname, backupptr); |
| 172 | + } |
| 173 | + free(back_file); |
| 174 | + } |
| 175 | + |
| 176 | + close(fd); |
| 177 | + } else |
| 178 | + write_sum_head(f_out, NULL); |
| 179 | } |
| 180 | |
| 181 | |
| 182 | -void generate_files(int f_out, struct file_list *flist, char *local_name) |
| 183 | +void generate_files(int f_out, struct file_list *flist, char *local_name, |
| 184 | + int f_out_name) |
| 185 | { |
| 186 | int i; |
| 187 | int phase = 0; |
| 188 | @@ -622,7 +639,7 @@ void generate_files(int f_out, struct fi |
| 189 | } |
| 190 | |
| 191 | recv_generator(local_name ? local_name : f_name_to(file, fbuf), |
| 192 | - file, i, f_out); |
| 193 | + file, i, f_out, f_out_name); |
| 194 | } |
| 195 | |
| 196 | phase++; |
| 197 | @@ -639,7 +656,7 @@ void generate_files(int f_out, struct fi |
| 198 | while ((i = get_redo_num()) != -1) { |
| 199 | struct file_struct *file = flist->files[i]; |
| 200 | recv_generator(local_name ? local_name : f_name_to(file, fbuf), |
| 201 | - file, i, f_out); |
| 202 | + file, i, f_out, f_out_name); |
| 203 | } |
| 204 | |
| 205 | phase++; |
| 206 | @@ -658,7 +675,7 @@ void generate_files(int f_out, struct fi |
| 207 | if (!file->basename || !S_ISDIR(file->mode)) |
| 208 | continue; |
| 209 | recv_generator(local_name ? local_name : f_name(file), |
| 210 | - file, i, -1); |
| 211 | + file, i, -1, -1); |
| 212 | } |
| 213 | |
| 214 | if (verbose > 2) |
| 215 | --- orig/main.c 2004-09-18 01:49:33 |
| 216 | +++ main.c 2004-07-22 00:10:43 |
| 217 | @@ -59,6 +59,7 @@ extern int filesfrom_fd; |
| 218 | extern pid_t cleanup_child_pid; |
| 219 | extern char *files_from; |
| 220 | extern char *remote_filesfrom_file; |
| 221 | +extern char *compare_dest; |
| 222 | extern char *rsync_path; |
| 223 | extern char *shell_cmd; |
| 224 | extern char *batch_name; |
| 225 | @@ -461,7 +462,8 @@ static int do_recv(int f_in,int f_out,st |
| 226 | { |
| 227 | int pid; |
| 228 | int status = 0; |
| 229 | - int error_pipe[2]; |
| 230 | + int error_pipe[2], name_pipe[2]; |
| 231 | + BOOL need_name_pipe = compare_dest && !dry_run; |
| 232 | |
| 233 | /* The receiving side mustn't obey this, or an existing symlink that |
| 234 | * points to an identical file won't be replaced by the referent. */ |
| 235 | @@ -476,8 +478,9 @@ static int do_recv(int f_in,int f_out,st |
| 236 | delete_files(flist); |
| 237 | } |
| 238 | |
| 239 | - if (fd_pair(error_pipe) < 0) { |
| 240 | - rprintf(FERROR,"error pipe failed in do_recv\n"); |
| 241 | + if (fd_pair(error_pipe) < 0 |
| 242 | + || (need_name_pipe && fd_pair(name_pipe) < 0)) { |
| 243 | + rprintf(FERROR, "fd_pair() failed in do_recv\n"); |
| 244 | exit_cleanup(RERR_SOCKETIO); |
| 245 | } |
| 246 | |
| 247 | @@ -485,6 +488,11 @@ static int do_recv(int f_in,int f_out,st |
| 248 | |
| 249 | if ((pid = do_fork()) == 0) { |
| 250 | close(error_pipe[0]); |
| 251 | + if (need_name_pipe) { |
| 252 | + close(name_pipe[1]); |
| 253 | + set_blocking(name_pipe[0]); |
| 254 | + } else |
| 255 | + name_pipe[0] = -1; |
| 256 | if (f_in != f_out) |
| 257 | close(f_out); |
| 258 | |
| 259 | @@ -494,7 +502,7 @@ static int do_recv(int f_in,int f_out,st |
| 260 | /* set place to send errors */ |
| 261 | set_msg_fd_out(error_pipe[1]); |
| 262 | |
| 263 | - recv_files(f_in,flist,local_name); |
| 264 | + recv_files(f_in, flist, local_name, name_pipe[0]); |
| 265 | io_flush(FULL_FLUSH); |
| 266 | report(f_in); |
| 267 | |
| 268 | @@ -513,6 +521,11 @@ static int do_recv(int f_in,int f_out,st |
| 269 | stop_write_batch(); |
| 270 | |
| 271 | close(error_pipe[1]); |
| 272 | + if (need_name_pipe) { |
| 273 | + close(name_pipe[0]); |
| 274 | + set_nonblocking(name_pipe[1]); |
| 275 | + } else |
| 276 | + name_pipe[1] = -1; |
| 277 | if (f_in != f_out) |
| 278 | close(f_in); |
| 279 | |
| 280 | @@ -520,7 +533,7 @@ static int do_recv(int f_in,int f_out,st |
| 281 | |
| 282 | set_msg_fd_in(error_pipe[0]); |
| 283 | |
| 284 | - generate_files(f_out, flist, local_name); |
| 285 | + generate_files(f_out, flist, local_name, name_pipe[1]); |
| 286 | |
| 287 | get_redo_num(); /* Read final MSG_DONE and any prior messages. */ |
| 288 | report(-1); |
| 289 | --- orig/receiver.c 2004-09-21 09:40:27 |
| 290 | +++ receiver.c 2004-09-07 21:57:20 |
| 291 | @@ -329,7 +329,8 @@ static void discard_receive_data(int f_i |
| 292 | * main routine for receiver process. |
| 293 | * |
| 294 | * Receiver process runs on the same host as the generator process. */ |
| 295 | -int recv_files(int f_in, struct file_list *flist, char *local_name) |
| 296 | +int recv_files(int f_in, struct file_list *flist, char *local_name, |
| 297 | + int f_in_name) |
| 298 | { |
| 299 | int next_gen_i = -1; |
| 300 | int fd1,fd2; |
| 301 | @@ -358,8 +359,13 @@ int recv_files(int f_in, struct file_lis |
| 302 | i = read_int(f_in); |
| 303 | if (i == -1) { |
| 304 | if (read_batch) { |
| 305 | - if (next_gen_i != flist->count) |
| 306 | - while (read_int(batch_gen_fd) != -1) {} |
| 307 | + if (next_gen_i != flist->count) { |
| 308 | + do { |
| 309 | + if (f_in_name >= 0 |
| 310 | + && next_gen_i >= 0) |
| 311 | + read_byte(f_in_name); |
| 312 | + } while (read_int(batch_gen_fd) != -1); |
| 313 | + } |
| 314 | next_gen_i = -1; |
| 315 | } |
| 316 | |
| 317 | @@ -407,6 +413,8 @@ int recv_files(int f_in, struct file_lis |
| 318 | |
| 319 | if (read_batch) { |
| 320 | while (i > next_gen_i) { |
| 321 | + if (f_in_name >= 0 && next_gen_i >= 0) |
| 322 | + read_byte(f_in_name); |
| 323 | next_gen_i = read_int(batch_gen_fd); |
| 324 | if (next_gen_i == -1) |
| 325 | next_gen_i = flist->count; |
| 326 | @@ -417,6 +425,7 @@ int recv_files(int f_in, struct file_lis |
| 327 | discard_receive_data(f_in, file->length); |
| 328 | continue; |
| 329 | } |
| 330 | + next_gen_i = -1; |
| 331 | } |
| 332 | |
| 333 | if (server_exclude_list.head |
| 334 | @@ -426,35 +435,31 @@ int recv_files(int f_in, struct file_lis |
| 335 | exit_cleanup(RERR_PROTOCOL); |
| 336 | } |
| 337 | |
| 338 | - if (partial_dir) { |
| 339 | - if ((partialptr = partial_dir_fname(fname)) != NULL) |
| 340 | - fnamecmp = partialptr; |
| 341 | - else |
| 342 | + partialptr = partial_dir ? partial_dir_fname(fname) : fname; |
| 343 | + |
| 344 | + if (f_in_name >= 0) { |
| 345 | + switch (read_byte(f_in_name)) { |
| 346 | + case G2R_FNAME: |
| 347 | fnamecmp = fname; |
| 348 | + break; |
| 349 | + case G2R_PARTIAL_DIR: |
| 350 | + fnamecmp = partialptr ? partialptr : fname; |
| 351 | + break; |
| 352 | + case G2R_BACKUP: |
| 353 | + fnamecmp = get_backup_name(fname); |
| 354 | + break; |
| 355 | + default: |
| 356 | + pathjoin(fnamecmpbuf, sizeof fnamecmpbuf, |
| 357 | + compare_dest, fname); |
| 358 | + fnamecmp = fnamecmpbuf; |
| 359 | + break; |
| 360 | + } |
| 361 | } else |
| 362 | - fnamecmp = partialptr = fname; |
| 363 | - |
| 364 | - if (inplace && make_backups) { |
| 365 | - if (!(fnamecmp = get_backup_name(fname))) |
| 366 | - fnamecmp = partialptr; |
| 367 | - } |
| 368 | + fnamecmp = fname; |
| 369 | |
| 370 | /* open the file */ |
| 371 | fd1 = do_open(fnamecmp, O_RDONLY, 0); |
| 372 | |
| 373 | - if (fd1 == -1 && fnamecmp != fname) { |
| 374 | - fnamecmp = fname; |
| 375 | - fd1 = do_open(fnamecmp, O_RDONLY, 0); |
| 376 | - } |
| 377 | - |
| 378 | - if (fd1 == -1 && compare_dest != NULL) { |
| 379 | - /* try the file at compare_dest instead */ |
| 380 | - pathjoin(fnamecmpbuf, sizeof fnamecmpbuf, |
| 381 | - compare_dest, fname); |
| 382 | - fnamecmp = fnamecmpbuf; |
| 383 | - fd1 = do_open(fnamecmp, O_RDONLY, 0); |
| 384 | - } |
| 385 | - |
| 386 | if (fd1 != -1 && do_fstat(fd1,&st) != 0) { |
| 387 | rsyserr(FERROR, errno, "fstat %s failed", |
| 388 | full_fname(fnamecmp)); |
| 389 | --- orig/rsync.h 2004-08-03 15:41:32 |
| 390 | +++ rsync.h 2004-09-07 21:52:22 |
| 391 | @@ -118,6 +118,10 @@ |
| 392 | #define PDIR_CREATE 1 |
| 393 | #define PDIR_DELETE 0 |
| 394 | |
| 395 | +#define G2R_FNAME 0x80 |
| 396 | +#define G2R_PARTIAL_DIR 0x81 |
| 397 | +#define G2R_BACKUP 0x82 |
| 398 | + |
| 399 | |
| 400 | /* Log-message categories. FLOG is only used on the daemon side to |
| 401 | * output messages to the log file. */ |