openkylin
/
libvirt
mirror of https://gitee.com/openkylin/libvirt.git
9
0
Fork 0
Code Issues Projects Releases Wiki Activity

virsh: introduce new macros to help check flag requirements 

Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
This commit is contained in:
Pavel Hrdina 2015-03-26 11:01:35 +01:00
parent 28ca8520bb
commit 170fb72c70
1 changed files with 54 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

54
tools/virsh.h
View File

@ -469,4 +469,58 @@ char *_vshStrdup(vshControl *ctl, const char *s, const char *filename,
# define VSH_EXCLUSIVE_OPTIONS_VAR(VARNAME1, VARNAME2) \
VSH_EXCLUSIVE_OPTIONS_EXPR(#VARNAME1, VARNAME1, #VARNAME2, VARNAME2)
/* Macros to help dealing with required options. */
/* VSH_REQUIRE_OPTION_EXPR:
*
* @NAME1: String containing the name of the option.
* @EXPR1: Expression to validate the variable (boolean variable).
* @NAME2: String containing the name of required option.
* @EXPR2: Expression to validate the variable (boolean variable).
*
* Check if required command options in virsh was set. Use the
* provided expression to check the variables.
*
* This helper does an early return and therefore it has to be called
* before anything that would require cleanup.
*/
# define VSH_REQUIRE_OPTION_EXPR(NAME1, EXPR1, NAME2, EXPR2) \
do { \
if ((EXPR1) && !(EXPR2)) { \
vshError(ctl, _("Option --%s is required by option --%s"), \
NAME2, NAME1); \
return false; \
} \
} while (0)
/* VSH_REQUIRE_OPTION:
*
* @NAME1: String containing the name of the option.
* @NAME2: String containing the name of required option.
*
* Check if required command options in virsh was set. Use the
* vshCommandOptBool call to request them.
*
* This helper does an early return and therefore it has to be called
* before anything that would require cleanup.
*/
# define VSH_REQUIRE_OPTION(NAME1, NAME2) \
VSH_REQUIRE_OPTION_EXPR(NAME1, vshCommandOptBool(cmd, NAME1), \
NAME2, vshCommandOptBool(cmd, NAME2))
/* VSH_REQUIRE_OPTION_VAR:
*
* @VARNAME1: Boolean variable containing the value of the option of same name.
* @VARNAME2: Boolean variable containing the value of required option of
* same name.
*
* Check if required command options in virsh was set. Check in variables
* that contain the value and have same name as the option.
*
* This helper does an early return and therefore it has to be called
* before anything that would require cleanup.
*/
# define VSH_REQUIRE_OPTION_VAR(VARNAME1, VARNAME2) \
VSH_REQUIRE_OPTION_EXPR(#VARNAME1, VARNAME1, #VARNAME2, VARNAME2)
#endif /* VIRSH_H */