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Functions:

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- g_new_geomf(),
	- g_new_providerf(),
	- g_new_consumer()

cannot failed (by returning NULL), so don't scare programmers.
This commit is contained in:
Pawel Jakub Dawidek 2004-03-24 14:25:46 +00:00
parent b4dae77e8b
commit 06bb88dcb2
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=127371
5 changed files with 11 additions and 27 deletions
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2
share/man/man9/g_access.9
View file

@ -100,8 +100,6 @@ some_function(struct g_geom *mygeom, struct g_provider *pp)
/* Create new consumer on 'mygeom' geom. */
cp = g_new_consumer(mygeom);
if (cp == NULL)
return;
/* Attach newly created consumer to given provider. */
if (g_attach(cp, pp) != 0) {
g_destroy_consumer(cp);

2
share/man/man9/g_attach.9
View file

@ -93,8 +93,6 @@ some_function(struct g_geom *mygeom, struct g_provider *pp)
/* Create new consumer on 'mygeom' geom. */
cp = g_new_consumer(mygeom);
if (cp == NULL)
return;
/* Attach newly created consumer to given provider. */
if (g_attach(cp, pp) != 0) {
g_destroy_consumer(cp);

6
share/man/man9/g_consumer.9
View file

@ -81,9 +81,7 @@ The topology lock has to be held.
.El
.Sh RETURN VALUES
.Fn g_new_consumer
returns a pointer to the newly created consumer or
.Dv NULL
if an error occured.
returns a pointer to the newly created consumer.
.Sh EXAMPLES
Create consumer, attach it to given provider, gain read access and clean up.
.Bd -literal -offset indent
@ -96,8 +94,6 @@ some_function(struct g_geom *mygeom, struct g_provider *pp)
/* Create new consumer on 'mygeom' geom. */
cp = g_new_consumer(mygeom);
if (cp == NULL)
return;
/* Attach newly created consumer to given provider. */
if (g_attach(cp, pp) != 0) {
g_destroy_consumer(cp);

16
share/man/man9/g_geom.9
View file

@ -112,9 +112,7 @@ The topology lock has to be held.
.El
.Sh RETURN VALUES
.Fn g_new_geomf
returns a pointer to the newly created geom or
.Dv NULL
if an error occured.
returns a pointer to the newly created geom.
.Sh EXAMPLES
Create an example geom.
.Bd -literal -offset indent
@ -158,13 +156,11 @@ create_example_geom(struct g_class *myclass)
g_topology_lock();
gp = g_new_geomf(myclass, "example_geom");
g_topology_unlock();
if (gp != NULL) {
gp->start = g_example_start;
gp->orphan = g_example_orphan;
gp->spoiled = g_example_spoiled;
gp->access = g_example_access;
gp->softc = NULL;
}
gp->start = g_example_start;
gp->orphan = g_example_orphan;
gp->spoiled = g_example_spoiled;
gp->access = g_example_access;
gp->softc = NULL;
return (gp);
}

12
share/man/man9/g_provider.9
View file

@ -104,9 +104,7 @@ The topology lock has to be held.
.El
.Sh RETURN VALUES
.Fn g_new_providerf
returns a pointer to the newly created provider or
.Dv NULL
if an error occured.
returns a pointer to the newly created provider.
.Sh EXAMPLES
Create an example provider, set its parameters and make it usable.
.Bd -literal -offset indent
@ -117,12 +115,10 @@ create_example_provider(struct g_geom *gp)
g_topology_lock();
pp = g_new_providerf(gp, "example_provider");
pp->mediasize = 65536;
pp->sectorsize = 512;
g_error_provider(pp, 0);
g_topology_unlock();
if (pp != NULL) {
pp->mediasize = 65536;
pp->sectorsize = 512;
g_error_provider(pp, 0);
}
return (pp);
}