/* The entrance point to the copy operation. */
void DCOPY_do_copy(DCOPY_operation_t* op, \
CIRCLE_handle* handle)
{
off64_t offset = DCOPY_CHUNK_SIZE * op->chunk;
int in_fd = DCOPY_open_input_fd(op, offset, DCOPY_CHUNK_SIZE);
if(in_fd < 0) {
DCOPY_retry_failed_operation(COPY, handle, op);
return;
}
int out_fd = DCOPY_open_output_fd(op);
if(out_fd < 0) {
/*
* If the force option is specified, try to unlink the destination and
* reopen before doing the optional requeue.
*/
if(DCOPY_user_opts.force) {
DCOPY_unlink_destination(op);
out_fd = DCOPY_open_output_fd(op);
if(out_fd < 0) {
DCOPY_retry_failed_operation(COPY, handle, op);
return;
}
}
else {
DCOPY_retry_failed_operation(COPY, handle, op);
return;
}
}
if(DCOPY_perform_copy(op, in_fd, out_fd, offset) < 0) {
DCOPY_retry_failed_operation(COPY, handle, op);
return;
}
if(close(in_fd) < 0) {
LOG(DCOPY_LOG_DBG, "Close on source file failed. errno=%d %s", errno, strerror(errno));
}
if(close(out_fd) < 0) {
LOG(DCOPY_LOG_DBG, "Close on destination file failed. errno=%d %s", errno, strerror(errno));
}
DCOPY_enqueue_cleanup_stage(op, handle);
return;
}
void DCOPY_truncate_file(DCOPY_operation_t* op, \
CIRCLE_handle* handle)
{
char dest_path_recursive[PATH_MAX];
char dest_path_file_to_file[PATH_MAX];
if(op->dest_base_appendix == NULL) {
sprintf(dest_path_recursive, "%s/%s", \
DCOPY_user_opts.dest_path, \
op->operand + op->source_base_offset + 1);
strncpy(dest_path_file_to_file, DCOPY_user_opts.dest_path, PATH_MAX);
}
else {
sprintf(dest_path_recursive, "%s/%s/%s", \
DCOPY_user_opts.dest_path, \
op->dest_base_appendix, \
op->operand + op->source_base_offset + 1);
sprintf(dest_path_file_to_file, "%s/%s", \
DCOPY_user_opts.dest_path, \
op->dest_base_appendix);
}
LOG(DCOPY_LOG_DBG, "Truncating file to `%" PRId64 "'.", op->file_size);
/*
* Try the recursive file before file-to-file. The cast below requires us
* to have a maximum file_size of 2^63, not 2^64.
*/
if(truncate64(dest_path_recursive, op->file_size) < 0) {
/*
LOG(DCOPY_LOG_DBG, "Failed to truncate destination file (recursive).");
*/
if(truncate64(dest_path_file_to_file, op->file_size) < 0) {
LOG(DCOPY_LOG_ERR, "Failed to truncate destination file.");
DCOPY_retry_failed_operation(COPY, handle, op);
return;
}
}
}
