GRASS Programmer's Manual
6.4.2(2012)
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db.c
Go to the documentation of this file.
1
15
#include <grass/dbmi.h>
16
#include <grass/glocale.h>
17
#include "
macros.h
"
18
28
dbDriver *
db_start_driver_open_database
(
const
char
*drvname,
29
const
char
*dbname)
30
{
31
dbHandle handle;
32
dbDriver *
driver
;
33
34
G_debug
(3,
"db_start_driver_open_database():\n drvname = %s, dbname = %s"
,
35
drvname, dbname);
36
37
db_init_handle
(&handle);
38
39
driver =
db_start_driver
(drvname);
40
if
(driver ==
NULL
) {
41
G_warning
(_(
"Unable to start driver <%s>"
), drvname);
42
return
NULL
;
43
}
44
db_set_handle
(&handle, dbname,
NULL
);
45
if
(
db_open_database
(driver, &handle) != DB_OK) {
46
G_warning
(_(
"Unable to open database <%s> by driver <%s>"
),
47
dbname, drvname);
48
db_shutdown_driver
(driver);
49
return
NULL
;
50
}
51
52
return
driver
;
53
}
54
62
int
db_close_database_shutdown_driver
(dbDriver *
driver
)
63
{
64
int
status;
65
66
status =
db_close_database
(driver);
67
G_debug
(2,
"db_close_database() result: %d (%d means success)"
,
68
status, DB_OK);
69
70
if
(
db_shutdown_driver
(driver) != 0) {
71
status = DB_FAILED;
72
G_debug
(2,
"db_shutdown_driver() failed"
);
73
}
74
75
return
status;
76
}
lib
db
dbmi_client
db.c
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