static int prefetch(mailmessage * msg_info)
{
struct generic_message_t * msg;
int res;
struct maildir_msg_data * data;
char * filename;
int fd;
char * mapping;
struct maildir * md;
md = get_maildir_session(msg_info);
if (msg_info->msg_uid == NULL) {
res = MAIL_ERROR_INVAL;
goto err;
}
filename = maildir_message_get(md, msg_info->msg_uid);
if (filename == NULL) {
res = MAIL_ERROR_MEMORY;
goto err;
}
fd = open(filename, O_RDONLY);
free(filename);
if (fd == -1) {
res = MAIL_ERROR_FILE;
goto err;
}
mapping = mmap(NULL, msg_info->msg_size, PROT_READ, MAP_PRIVATE, fd, 0);
if (mapping == (char *)MAP_FAILED) {
res = MAIL_ERROR_FILE;
goto close;
}
data = malloc(sizeof(* data));
if (data == NULL) {
res = MAIL_ERROR_MEMORY;
goto unmap;
}
data->fd = fd;
msg = msg_info->msg_data;
msg->msg_data = data;
msg->msg_message = mapping;
msg->msg_length = msg_info->msg_size;
return MAIL_NO_ERROR;
unmap:
munmap(mapping, msg_info->msg_size);
close:
close(fd);
err:
return res;
}
static int get_message_by_uid(mailsession * session,
const char * uid, mailmessage ** result)
{
int r;
struct maildir * md;
int res;
mailmessage * msg;
char * msg_filename;
struct stat stat_info;
md = get_maildir_session(session);
/* update maildir data */
r = maildir_update(md);
if (r != MAILDIR_NO_ERROR) {
res = maildirdriver_maildir_error_to_mail_error(r);
goto err;
}
msg_filename = maildir_message_get(md, uid);
if (msg_filename == NULL) {
res = MAIL_ERROR_INVAL;
goto err;
}
r = stat(msg_filename, &stat_info);
free(msg_filename);
if (r < 0) {
res = MAIL_ERROR_INVAL;
goto err;
}
/* create message */
msg = mailmessage_new();
if (msg == NULL) {
res = MAIL_ERROR_MEMORY;
goto err;
}
r = mailmessage_init(msg, session, maildir_message_driver,
0, stat_info.st_size);
if (r != MAIL_NO_ERROR) {
mailmessage_free(msg);
res = r;
goto err;
}
msg->msg_uid = strdup(uid);
if (msg->msg_uid == NULL) {
mailmessage_free(msg);
res = r;
goto err;
}
* result = msg;
return MAIL_NO_ERROR;
err:
return res;
}