rmalloc(9r) [osf1 man page]

rmalloc(9r)															       rmalloc(9r)

NAME

       rmalloc - General: Allocates size units from the given resource map

SYNOPSIS

       long rmalloc(
	       struct map *map_struct,
	       long size );

ARGUMENTS

       Specifies a pointer to a map structure that was previously initialized by a call to rminit.  Specifies the size of the units to allocate.

DESCRIPTION

       The rmalloc routine allocates size units from the given resource map. In a map, the addresses are increasing, and the list is terminated by
       a zero size.  The actual units managed by the map are arbitrary and can be map registers, bytes, blocks, and so forth.

NOTES

       The caller is responsible for providing any locking necessary for the map structure that the system passes to the rmalloc routine.

RETURN VALUES

       The rmalloc routine returns the base of the allocated space. It returns an error if no space could be allocated.

SEE ALSO

       Routines: rmfree(9r), rmget(9r), rminit(9r)

																       rmalloc(9r)

rmalloc_wait(9F)					   Kernel Functions for Drivers 					  rmalloc_wait(9F)

NAME

       rmalloc_wait - allocate space from a resource map, wait if necessary

SYNOPSIS

       #include <sys/map.h>
       #include <sys/ddi.h>

       unsigned long rmalloc_wait(struct map *mp, size_t size);

INTERFACE LEVEL

       Architecture independent level 1 (DDI/DKI).

PARAMETERS

       mp      Pointer to the resource map from which space is to be allocated.

       size    Number of units of space to allocate.

DESCRIPTION

       The rmalloc_wait() function requests an allocation of space from a resource map. rmalloc_wait() is similar to the rmalloc(9F) function with
       the exception that it will wait for space to become available if necessary.

RETURN VALUES

       The rmalloc_wait() function returns the base of the allocated space.

CONTEXT

       This function can be called from user, interrupt, or kernel context. However, in most cases rmalloc_wait() should not be called from inter-
       rupt context.

SEE ALSO

       rmalloc(9F), rmallocmap(9F), rmfree(9F), rmfreemap(9F)

       Writing Device Drivers

SunOS 5.11							    16 Jan 2006 						  rmalloc_wait(9F)