| | 1 | /* -*- c-file-style: "linux" -*- |
| | 2 | |
| | 3 | Copyright (C) 1996-2000 by Andrew Tridgell |
| | 4 | Copyright (C) Paul Mackerras 1996 |
| | 5 | |
| | 6 | This program is free software; you can redistribute it and/or modify |
| | 7 | it under the terms of the GNU General Public License as published by |
| | 8 | the Free Software Foundation; either version 2 of the License, or |
| | 9 | (at your option) any later version. |
| | 10 | |
| | 11 | This program is distributed in the hope that it will be useful, |
| | 12 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| | 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| | 14 | GNU General Public License for more details. |
| | 15 | |
| | 16 | You should have received a copy of the GNU General Public License |
| | 17 | along with this program; if not, write to the Free Software |
| | 18 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
| | 19 | */ |
| | 20 | |
| | 21 | #include "rsync.h" |
| | 22 | |
| | 23 | /* handling the cleanup when a transfer is interrupted is tricky when |
| | 24 | --partial is selected. We need to ensure that the partial file is |
| | 25 | kept if any real data has been transferred */ |
| | 26 | int cleanup_got_literal=0; |
| | 27 | |
| | 28 | static char *cleanup_fname; |
| | 29 | static char *cleanup_new_fname; |
| | 30 | static struct file_struct *cleanup_file; |
| | 31 | static int cleanup_fd1, cleanup_fd2; |
| | 32 | static struct map_struct *cleanup_buf; |
| | 33 | static int cleanup_pid = 0; |
| | 34 | extern int io_error; |
| | 35 | |
| | 36 | pid_t cleanup_child_pid = -1; |
| | 37 | |
| | 38 | /* |
| | 39 | * Code is one of the RERR_* codes from errcode.h. |
| | 40 | */ |
| | 41 | void _exit_cleanup(int code, const char *file, int line) |
| | 42 | { |
| | 43 | int ocode = code; |
| | 44 | extern int keep_partial; |
| | 45 | extern int log_got_error; |
| | 46 | |
| | 47 | signal(SIGUSR1, SIG_IGN); |
| | 48 | signal(SIGUSR2, SIG_IGN); |
| | 49 | |
| | 50 | if (verbose > 3) |
| | 51 | rprintf(FINFO,"_exit_cleanup(code=%d, file=%s, line=%d): entered\n", |
| | 52 | code, file, line); |
| | 53 | |
| | 54 | if (cleanup_child_pid != -1) { |
| | 55 | int status; |
| | 56 | if (waitpid(cleanup_child_pid, &status, WNOHANG) == cleanup_child_pid) { |
| | 57 | status = WEXITSTATUS(status); |
| | 58 | if (status > code) code = status; |
| | 59 | } |
| | 60 | } |
| | 61 | |
| | 62 | if (cleanup_got_literal && cleanup_fname && keep_partial) { |
| | 63 | char *fname = cleanup_fname; |
| | 64 | cleanup_fname = NULL; |
| | 65 | if (cleanup_buf) unmap_file(cleanup_buf); |
| | 66 | if (cleanup_fd1 != -1) close(cleanup_fd1); |
| | 67 | if (cleanup_fd2 != -1) close(cleanup_fd2); |
| | 68 | finish_transfer(cleanup_new_fname, fname, cleanup_file); |
| | 69 | } |
| | 70 | io_flush(); |
| | 71 | if (cleanup_fname) |
| | 72 | do_unlink(cleanup_fname); |
| | 73 | if (code) { |
| | 74 | kill_all(SIGUSR1); |
| | 75 | } |
| | 76 | if ((cleanup_pid != 0) && (cleanup_pid == (int) getpid())) { |
| | 77 | char *pidf = lp_pid_file(); |
| | 78 | if (pidf && *pidf) { |
| | 79 | unlink(lp_pid_file()); |
| | 80 | } |
| | 81 | } |
| | 82 | |
| | 83 | if (code == 0 && (io_error || log_got_error)) { |
| | 84 | code = RERR_PARTIAL; |
| | 85 | } |
| | 86 | |
| | 87 | if (code) log_exit(code, file, line); |
| | 88 | |
| | 89 | if (verbose > 2) |
| | 90 | rprintf(FINFO,"_exit_cleanup(code=%d, file=%s, line=%d): about to call exit(%d)\n", |
| | 91 | ocode, file, line, code); |
| | 92 | |
| | 93 | exit(code); |
| | 94 | } |
| | 95 | |
| | 96 | void cleanup_disable(void) |
| | 97 | { |
| | 98 | cleanup_fname = NULL; |
| | 99 | cleanup_got_literal = 0; |
| | 100 | } |
| | 101 | |
| | 102 | |
| | 103 | void cleanup_set(char *fnametmp, char *fname, struct file_struct *file, |
| | 104 | struct map_struct *buf, int fd1, int fd2) |
| | 105 | { |
| | 106 | cleanup_fname = fnametmp; |
| | 107 | cleanup_new_fname = fname; |
| | 108 | cleanup_file = file; |
| | 109 | cleanup_buf = buf; |
| | 110 | cleanup_fd1 = fd1; |
| | 111 | cleanup_fd2 = fd2; |
| | 112 | } |
| | 113 | |
| | 114 | void cleanup_set_pid(int pid) |
| | 115 | { |
| | 116 | cleanup_pid = pid; |
| | 117 | } |
Matt McCutchen's Web Site / rsync / rsync.git / blame_incremental