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Implement QOF_COMMIT_EDIT_PART2 as a function instead of a macro.

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Any of the callbacks passed to this function may be NULL to decline the 
   use of that callback.  Also, the three callbacks are now called in three
   mutually exclusive cases, corresponding to: 
      1) a failed commit, ('on_error')
      2) a successful commit where the object remains valid, ('on_done'), and 
      3) a successful commit where the object has been destroyed, ('on_free').


git-svn-id: svn+ssh://svn.gnucash.org/repo/gnucash/trunk@13390 57a11ea4-9604-0410-9ed3-97b8803252fd
This commit is contained in:
Chris Shoemaker 2006-02-26 04:56:47 +00:00
parent 6f9f00dea5
commit 6a8404df1d
2 changed files with 62 additions and 41 deletions
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59
lib/libqof/qof/qof-be-utils.h
View File

@ -138,50 +138,27 @@ gboolean qof_commit_edit(QofInstance *inst);
* @param inst: an instance of QofInstance
* @param on_error: a function called if there is a backend error.
* void (*on_error)(inst, QofBackendError)
* @param on_done: a function called after the commit is complete
* but before the instect is freed. Perform any other
* operations after the commit.
* @param on_done: a function called after the commit is completed
* successfully for an object which remained valid.
* void (*on_done)(inst)
* @param on_free: a function called if inst->do_free is TRUE.
* @param on_free: a function called if the commit succeeded and the instance
* is to be freed.
* void (*on_free)(inst)
*
* Note that only *one* callback will be called (or zero, if that
* callback is NULL). In particular, 'on_done' will not be called for
* an object which is to be freed.
*
* Returns TRUE, if the commit succeeded, FALSE otherwise.
*/
#define QOF_COMMIT_EDIT_PART2(inst,on_error,on_done,on_free) { \
QofBackend * be; \
\
/* See if there's a backend. If there is, invoke it. */ \
be = qof_book_get_backend ((inst)->book); \
if (be && qof_backend_commit_exists(be)) \
{ \
QofBackendError errcode; \
\
/* clear errors */ \
do { \
errcode = qof_backend_get_error (be); \
} while (ERR_BACKEND_NO_ERR != errcode); \
\
qof_backend_run_commit(be, (inst)); \
errcode = qof_backend_get_error (be); \
if (ERR_BACKEND_NO_ERR != errcode) \
{ \
/* XXX Should perform a rollback here */ \
(inst)->do_free = FALSE; \
\
/* Push error back onto the stack */ \
qof_backend_set_error (be, errcode); \
(on_error)((inst), errcode); \
} \
/* XXX the backend commit code should clear dirty!! */ \
(inst)->dirty = FALSE; \
} \
(on_done)(inst); \
\
LEAVE ("inst=%p, dirty=%d do-free=%d", \
(inst), (inst)->dirty, (inst)->do_free); \
if ((inst)->do_free) { \
(on_free)(inst); \
return; \
} \
}
gboolean
qof_commit_edit_part2(QofInstance *inst,
void (*on_error)(QofInstance *, QofBackendError),
void (*on_done)(QofInstance *),
void (*on_free)(QofInstance *));
#define QOF_COMMIT_EDIT_PART2(inst, on_error, on_done, on_free) \
qof_commit_edit_part2((inst), (on_error), (on_done), (on_free))
#endif /* QOF_BE_UTILS_H */
/** @} */

44
lib/libqof/qof/qofbackend.c
View File

@ -382,6 +382,50 @@ gboolean qof_commit_edit(QofInstance *inst)
return TRUE;
}
gboolean
qof_commit_edit_part2(QofInstance *inst,
void (*on_error)(QofInstance *, QofBackendError),
void (*on_done)(QofInstance *),
void (*on_free)(QofInstance *))
{
QofBackend * be;
/* See if there's a backend. If there is, invoke it. */
be = qof_book_get_backend(inst->book);
if (be && qof_backend_commit_exists(be)) {
QofBackendError errcode;
/* clear errors */
do {
errcode = qof_backend_get_error(be);
} while (ERR_BACKEND_NO_ERR != errcode);
qof_backend_run_commit(be, inst);
errcode = qof_backend_get_error(be);
if (ERR_BACKEND_NO_ERR != errcode) {
/* XXX Should perform a rollback here */
inst->do_free = FALSE;
/* Push error back onto the stack */
qof_backend_set_error (be, errcode);
if (on_error)
on_error(inst, errcode);
return FALSE;
}
/* XXX the backend commit code should clear dirty!! */
inst->dirty = FALSE;
}
if (inst->do_free) {
if (on_free)
on_free(inst);
return TRUE;
}
if (on_done)
on_done(inst);
return TRUE;
}
gboolean
qof_load_backend_library (const char *directory,
const char* filename, const char* init_fcn)