/*
* db_insert --
* Insert a line into the file.
*
* PUBLIC: int db_insert(SCR *, recno_t, CHAR_T *, size_t);
*/
int
db_insert(
SCR *sp,
recno_t lno,
CHAR_T *p,
size_t len)
{
DBT data, key;
EXF *ep;
char *fp;
size_t flen;
int rval;
#if defined(DEBUG) && 0
TRACE(sp, "insert before %lu: len %lu {%.*s}\n",
(u_long)lno, (u_long)len, MIN(len, 20), p);
#endif
/* Check for no underlying file. */
if ((ep = sp->ep) == NULL) {
ex_emsg(sp, NULL, EXM_NOFILEYET);
return (1);
}
INT2FILE(sp, p, len, fp, flen);
/* Update file. */
key.data = &lno;
key.size = sizeof(lno);
data.data = fp;
data.size = flen;
if (ep->db->put(ep->db, &key, &data, R_IBEFORE) == -1) {
msgq(sp, M_SYSERR,
"005|unable to insert at line %lu", (u_long)lno);
return (1);
}
/* Flush the cache, update line count, before screen update. */
if (lno >= ep->c_lno)
ep->c_lno = OOBLNO;
if (ep->c_nlines != OOBLNO)
++ep->c_nlines;
/* File now dirty. */
if (F_ISSET(ep, F_FIRSTMODIFY))
(void)rcv_init(sp);
F_SET(ep, F_MODIFIED);
/* Log change. */
log_line(sp, lno, LOG_LINE_INSERT);
/* Update marks, @ and global commands. */
rval = 0;
if (mark_insdel(sp, LINE_INSERT, lno))
rval = 1;
if (ex_g_insdel(sp, LINE_INSERT, lno))
rval = 1;
/* Update screen. */
return (scr_update(sp, lno, LINE_INSERT, 1) || rval);
}
/*
* db_set --
* Store a line in the file.
*
* PUBLIC: int db_set __P((SCR *, db_recno_t, CHAR_T *, size_t));
*/
int
db_set(SCR *sp, db_recno_t lno, CHAR_T *p, size_t len)
{
DBT data, key;
EXF *ep;
const char *fp;
size_t flen;
#if defined(DEBUG) && 0
vtrace(sp, "replace line %lu: len %lu {%.*s}\n",
(u_long)lno, (u_long)len, MIN(len, 20), p);
#endif
/* Check for no underlying file. */
if ((ep = sp->ep) == NULL) {
ex_emsg(sp, NULL, EXM_NOFILEYET);
return (1);
}
if (ep->l_win && ep->l_win != sp->wp) {
ex_emsg(sp, NULL, EXM_LOCKED);
return 1;
}
/* Log before change. */
log_line(sp, lno, LOG_LINE_RESET_B);
INT2FILE(sp, p, len, fp, flen);
/* Update file. */
memset(&key, 0, sizeof(key));
key.data = &lno;
key.size = sizeof(lno);
memset(&data, 0, sizeof(data));
data.data = __UNCONST(fp);
data.size = flen;
if ((sp->db_error = ep->db->put(ep->db, NULL, &key, &data, 0)) != 0) {
msgq(sp, M_DBERR, "006|unable to store line %lu", (u_long)lno);
return (1);
}
/* Flush the cache, update line count, before screen update. */
update_cache(sp, LINE_RESET, lno);
/* File now dirty. */
if (F_ISSET(ep, F_FIRSTMODIFY))
(void)rcv_init(sp);
F_SET(ep, F_MODIFIED);
/* Log after change. */
log_line(sp, lno, LOG_LINE_RESET_F);
/* Update screen. */
return (scr_update(sp, lno, LINE_RESET, 1));
}
/*
* db_set --
* Store a line in the file.
*
* PUBLIC: int db_set(SCR *, recno_t, CHAR_T *, size_t);
*/
int
db_set(
SCR *sp,
recno_t lno,
CHAR_T *p,
size_t len)
{
DBT data, key;
EXF *ep;
char *fp;
size_t flen;
#if defined(DEBUG) && 0
TRACE(sp, "replace line %lu: len %lu {%.*s}\n",
(u_long)lno, (u_long)len, MIN(len, 20), p);
#endif
/* Check for no underlying file. */
if ((ep = sp->ep) == NULL) {
ex_emsg(sp, NULL, EXM_NOFILEYET);
return (1);
}
/* Log before change. */
log_line(sp, lno, LOG_LINE_RESET_B);
INT2FILE(sp, p, len, fp, flen);
/* Update file. */
key.data = &lno;
key.size = sizeof(lno);
data.data = fp;
data.size = flen;
if (ep->db->put(ep->db, &key, &data, 0) == -1) {
msgq(sp, M_SYSERR,
"006|unable to store line %lu", (u_long)lno);
return (1);
}
/* Flush the cache, before logging or screen update. */
if (lno == ep->c_lno)
ep->c_lno = OOBLNO;
/* File now dirty. */
if (F_ISSET(ep, F_FIRSTMODIFY))
(void)rcv_init(sp);
F_SET(ep, F_MODIFIED);
/* Log after change. */
log_line(sp, lno, LOG_LINE_RESET_F);
/* Update screen. */
return (scr_update(sp, lno, LINE_RESET, 1));
}
/*
* db_delete --
* Delete a line from the file.
*
* PUBLIC: int db_delete __P((SCR *, db_recno_t));
*/
int
db_delete(SCR *sp, db_recno_t lno)
{
DBT key;
EXF *ep;
#if defined(DEBUG) && 0
vtrace(sp, "delete line %lu\n", (u_long)lno);
#endif
/* Check for no underlying file. */
if ((ep = sp->ep) == NULL) {
ex_emsg(sp, NULL, EXM_NOFILEYET);
return (1);
}
if (ep->l_win && ep->l_win != sp->wp) {
ex_emsg(sp, NULL, EXM_LOCKED);
return 1;
}
/* Update marks, @ and global commands. */
if (line_insdel(sp, LINE_DELETE, lno))
return 1;
/* Log before change. */
log_line(sp, lno, LOG_LINE_DELETE_B);
/* Update file. */
memset(&key, 0, sizeof(key));
key.data = &lno;
key.size = sizeof(lno);
if ((sp->db_error = ep->db->del(ep->db, NULL, &key, 0)) != 0) {
msgq(sp, M_DBERR, "003|unable to delete line %lu",
(u_long)lno);
return (1);
}
/* Flush the cache, update line count, before screen update. */
update_cache(sp, LINE_DELETE, lno);
/* File now modified. */
if (F_ISSET(ep, F_FIRSTMODIFY))
(void)rcv_init(sp);
F_SET(ep, F_MODIFIED);
/* Log after change. */
log_line(sp, lno, LOG_LINE_DELETE_F);
/* Update screen. */
return (scr_update(sp, lno, LINE_DELETE, 1));
}
/*
* db_delete --
* Delete a line from the file.
*
* PUBLIC: int db_delete(SCR *, recno_t);
*/
int
db_delete(
SCR *sp,
recno_t lno)
{
DBT key;
EXF *ep;
#if defined(DEBUG) && 0
TRACE(sp, "delete line %lu\n", (u_long)lno);
#endif
/* Check for no underlying file. */
if ((ep = sp->ep) == NULL) {
ex_emsg(sp, NULL, EXM_NOFILEYET);
return (1);
}
/* Update marks, @ and global commands. */
if (mark_insdel(sp, LINE_DELETE, lno))
return (1);
if (ex_g_insdel(sp, LINE_DELETE, lno))
return (1);
/* Log change. */
log_line(sp, lno, LOG_LINE_DELETE);
/* Update file. */
key.data = &lno;
key.size = sizeof(lno);
if (ep->db->del(ep->db, &key, 0) == 1) {
msgq(sp, M_SYSERR,
"003|unable to delete line %lu", (u_long)lno);
return (1);
}
/* Flush the cache, update line count, before screen update. */
if (lno <= ep->c_lno)
ep->c_lno = OOBLNO;
if (ep->c_nlines != OOBLNO)
--ep->c_nlines;
/* File now modified. */
if (F_ISSET(ep, F_FIRSTMODIFY))
(void)rcv_init(sp);
F_SET(ep, F_MODIFIED);
/* Update screen. */
return (scr_update(sp, lno, LINE_DELETE, 1));
}
/* maybe this could be simpler
*
* DB3 behaves differently from DB1
*
* if lno != 0 just go to lno and put the new line after it
* if lno == 0 then if there are any record, put in front of the first
* otherwise just append to the end thus creating the first
* line
*/
static int
append(SCR *sp, db_recno_t lno, const CHAR_T *p, size_t len, lnop_t op, int update)
{
DBT data, key;
DBC *dbcp_put;
EXF *ep;
const char *fp;
size_t flen;
int rval;
/* Check for no underlying file. */
if ((ep = sp->ep) == NULL) {
ex_emsg(sp, NULL, EXM_NOFILEYET);
return (1);
}
if (ep->l_win && ep->l_win != sp->wp) {
ex_emsg(sp, NULL, EXM_LOCKED);
return 1;
}
/* Log before change. */
log_line(sp, lno + 1, LOG_LINE_APPEND_B);
/* Update file. */
memset(&key, 0, sizeof(key));
key.data = &lno;
key.size = sizeof(lno);
memset(&data, 0, sizeof(data));
if ((sp->db_error = ep->db->cursor(ep->db, NULL, &dbcp_put, 0)) != 0)
return 1;
INT2FILE(sp, p, len, fp, flen);
if (lno != 0) {
if ((sp->db_error = dbcp_put->c_get(dbcp_put, &key, &data, DB_SET)) != 0)
goto err2;
data.data = __UNCONST(fp);
data.size = flen;
if ((sp->db_error = dbcp_put->c_put(dbcp_put, &key, &data, DB_AFTER)) != 0) {
err2:
(void)dbcp_put->c_close(dbcp_put);
msgq(sp, M_DBERR,
(op == LINE_APPEND)
? "004|unable to append to line %lu"
: "005|unable to insert at line %lu",
(u_long)lno);
return (1);
}
} else {
if ((sp->db_error = dbcp_put->c_get(dbcp_put, &key, &data, DB_FIRST)) != 0) {
if (sp->db_error != DB_NOTFOUND)
goto err2;
data.data = __UNCONST(fp);
data.size = flen;
if ((sp->db_error = ep->db->put(ep->db, NULL, &key, &data, DB_APPEND)) != 0) {
goto err2;
}
} else {
key.data = &lno;
key.size = sizeof(lno);
data.data = __UNCONST(fp);
data.size = flen;
if ((sp->db_error = dbcp_put->c_put(dbcp_put, &key, &data, DB_BEFORE)) != 0) {
goto err2;
}
}
}
(void)dbcp_put->c_close(dbcp_put);
/* Flush the cache, update line count, before screen update. */
update_cache(sp, LINE_INSERT, lno);
/* File now dirty. */
if (F_ISSET(ep, F_FIRSTMODIFY))
(void)rcv_init(sp);
F_SET(ep, F_MODIFIED);
/* Log after change. */
log_line(sp, lno + 1, LOG_LINE_APPEND_F);
/* Update marks, @ and global commands. */
rval = line_insdel(sp, LINE_INSERT, lno + 1);
/*
* Update screen.
*
* comment copied from db_append
* XXX
* Nasty hack. If multiple lines are input by the user, they aren't
* committed until an <ESC> is entered. The problem is the screen was
* updated/scrolled as each line was entered. So, when this routine
* is called to copy the new lines from the cut buffer into the file,
* it has to know not to update the screen again.
*/
return (scr_update(sp, lno + 1, LINE_INSERT, update) || rval);
}
/*
* db_append --
* Append a line into the file.
*
* PUBLIC: int db_append(SCR *, int, recno_t, CHAR_T *, size_t);
*/
int
db_append(
SCR *sp,
int update,
recno_t lno,
CHAR_T *p,
size_t len)
{
DBT data, key;
EXF *ep;
char *fp;
size_t flen;
int rval;
#if defined(DEBUG) && 0
TRACE(sp, "append to %lu: len %u {%.*s}\n", lno, len, MIN(len, 20), p);
#endif
/* Check for no underlying file. */
if ((ep = sp->ep) == NULL) {
ex_emsg(sp, NULL, EXM_NOFILEYET);
return (1);
}
INT2FILE(sp, p, len, fp, flen);
/* Update file. */
key.data = &lno;
key.size = sizeof(lno);
data.data = fp;
data.size = flen;
if (ep->db->put(ep->db, &key, &data, R_IAFTER) == -1) {
msgq(sp, M_SYSERR,
"004|unable to append to line %lu", (u_long)lno);
return (1);
}
/* Flush the cache, update line count, before screen update. */
if (lno < ep->c_lno)
ep->c_lno = OOBLNO;
if (ep->c_nlines != OOBLNO)
++ep->c_nlines;
/* File now dirty. */
if (F_ISSET(ep, F_FIRSTMODIFY))
(void)rcv_init(sp);
F_SET(ep, F_MODIFIED);
/* Log change. */
log_line(sp, lno + 1, LOG_LINE_APPEND);
/* Update marks, @ and global commands. */
rval = 0;
if (mark_insdel(sp, LINE_INSERT, lno + 1))
rval = 1;
if (ex_g_insdel(sp, LINE_INSERT, lno + 1))
rval = 1;
/*
* Update screen.
*
* XXX
* Nasty hack. If multiple lines are input by the user, they aren't
* committed until an <ESC> is entered. The problem is the screen was
* updated/scrolled as each line was entered. So, when this routine
* is called to copy the new lines from the cut buffer into the file,
* it has to know not to update the screen again.
*/
return (scr_update(sp, lno, LINE_APPEND, update) || rval);
}
