-/*
- Copyright (C) Andrew Tridgell 1996
+/* -*- c-file-style: "linux" -*-
+
+ Copyright (C) 1996-2000 by Andrew Tridgell
Copyright (C) Paul Mackerras 1996
-
+ Copyright (C) 2002 by Martin Pool
+
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
-
+
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
-
+
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
#include "rsync.h"
-/* handling the cleanup when a transfer is interrupted is tricky when
- --partial is selected. We need to ensure that the partial file is
- kept if any real data has been transferred */
-int cleanup_got_literal=0;
+extern int io_error;
+extern int keep_partial;
+extern int log_got_error;
+extern char *partial_dir;
+
+/**
+ * Close all open sockets and files, allowing a (somewhat) graceful
+ * shutdown() of socket connections. This eliminates the abortive
+ * TCP RST sent by a Winsock-based system when the close() occurs.
+ **/
+void close_all(void)
+{
+#ifdef SHUTDOWN_ALL_SOCKETS
+ int max_fd;
+ int fd;
+ int ret;
+ STRUCT_STAT st;
+
+ max_fd = sysconf(_SC_OPEN_MAX) - 1;
+ for (fd = max_fd; fd >= 0; fd--) {
+ if ((ret = do_fstat(fd, &st)) == 0) {
+ if (is_a_socket(fd))
+ ret = shutdown(fd, 2);
+ ret = close(fd);
+ }
+ }
+#endif
+}
+
+/**
+ * @file cleanup.c
+ *
+ * Code for handling interrupted transfers. Depending on the @c
+ * --partial option, we may either delete the temporary file, or go
+ * ahead and overwrite the destination. This second behaviour only
+ * occurs if we've sent literal data and therefore hopefully made
+ * progress on the transfer.
+ **/
+
+/**
+ * Set to True once literal data has been sent across the link for the
+ * current file. (????)
+ *
+ * Handling the cleanup when a transfer is interrupted is tricky when
+ * --partial is selected. We need to ensure that the partial file is
+ * kept if any real data has been transferred.
+ **/
+int cleanup_got_literal = 0;
static char *cleanup_fname;
static char *cleanup_new_fname;
static struct file_struct *cleanup_file;
-static int cleanup_fd1, cleanup_fd2;
-static struct map_struct *cleanup_buf;
-static int cleanup_pid = 0;
+static int cleanup_fd_r, cleanup_fd_w;
+static pid_t cleanup_pid = 0;
+
+pid_t cleanup_child_pid = -1;
-void exit_cleanup(int code)
+/**
+ * Eventually calls exit(), passing @p code, therefore does not return.
+ *
+ * @param code one of the RERR_* codes from errcode.h.
+ **/
+void _exit_cleanup(int code, const char *file, int line)
{
- extern int keep_partial;
+ int ocode = code;
+ static int inside_cleanup = 0;
+
+ if (inside_cleanup > 10) {
+ /* prevent the occasional infinite recursion */
+ return;
+ }
+ inside_cleanup++;
signal(SIGUSR1, SIG_IGN);
+ signal(SIGUSR2, SIG_IGN);
+
+ if (verbose > 3) {
+ rprintf(FINFO,"_exit_cleanup(code=%d, file=%s, line=%d): entered\n",
+ code, safe_fname(file), line);
+ }
- if (cleanup_got_literal && cleanup_fname && keep_partial) {
+ if (cleanup_child_pid != -1) {
+ int status;
+ if (waitpid(cleanup_child_pid, &status, WNOHANG) == cleanup_child_pid) {
+ status = WEXITSTATUS(status);
+ if (status > code)
+ code = status;
+ }
+ }
+
+ if (cleanup_got_literal && cleanup_fname && keep_partial
+ && handle_partial_dir(cleanup_new_fname, PDIR_CREATE)) {
char *fname = cleanup_fname;
cleanup_fname = NULL;
- if (cleanup_buf) unmap_file(cleanup_buf);
- if (cleanup_fd1 != -1) close(cleanup_fd1);
- if (cleanup_fd2 != -1) close(cleanup_fd2);
- finish_transfer(cleanup_new_fname, fname, cleanup_file);
+ if (cleanup_fd_r != -1)
+ close(cleanup_fd_r);
+ if (cleanup_fd_w != -1) {
+ flush_write_file(cleanup_fd_w);
+ close(cleanup_fd_w);
+ }
+ finish_transfer(cleanup_new_fname, fname, cleanup_file, 0,
+ !partial_dir);
}
- io_flush();
+ io_flush(FULL_FLUSH);
if (cleanup_fname)
do_unlink(cleanup_fname);
- if (code) {
+ if (code)
kill_all(SIGUSR1);
- }
- if ((cleanup_pid != 0) && (cleanup_pid == (int) getpid())) {
+ if (cleanup_pid && cleanup_pid == getpid()) {
char *pidf = lp_pid_file();
- if (pidf && *pidf) {
+ if (pidf && *pidf)
unlink(lp_pid_file());
- }
}
- if (code) log_exit(code);
+ if (code == 0) {
+ if (io_error & IOERR_DEL_LIMIT)
+ code = RERR_DEL_LIMIT;
+ if (io_error & IOERR_VANISHED)
+ code = RERR_VANISHED;
+ if (io_error & IOERR_GENERAL || log_got_error)
+ code = RERR_PARTIAL;
+ }
+
+ if (code)
+ log_exit(code, file, line);
+
+ if (verbose > 2) {
+ rprintf(FINFO,"_exit_cleanup(code=%d, file=%s, line=%d): about to call exit(%d)\n",
+ ocode, safe_fname(file), line, code);
+ }
+ close_all();
exit(code);
}
void cleanup_set(char *fnametmp, char *fname, struct file_struct *file,
- struct map_struct *buf, int fd1, int fd2)
+ int fd_r, int fd_w)
{
cleanup_fname = fnametmp;
cleanup_new_fname = fname;
cleanup_file = file;
- cleanup_buf = buf;
- cleanup_fd1 = fd1;
- cleanup_fd2 = fd2;
+ cleanup_fd_r = fd_r;
+ cleanup_fd_w = fd_w;
}
-void cleanup_set_pid(int pid)
+void cleanup_set_pid(pid_t pid)
{
cleanup_pid = pid;
}
git.samba.org / rsync.git / blobdiff