8f1fb67a78
The following commit message is shared with 4 patches. ------------------------------------------------------ Under the newlib interface most of our 'get' functions represent a bit of a compromise in that the actual raw values are coerced into one (probably ok) return type. That approach creates the possibility of truncation at best, and wouldn't serve future needs should something other than numeric data be added to the 'get' results. This commit trades the current compromise for a return value guaranteed to satisfy all future needs, namely a pointer to a particular api's specific results struct. The impact on existing programs is minimal, especially when using a new supplied macro. Otherwise, native 'C' syntax could be used, but may feel somewhat unnatural. [ as an aside, this new approach allows us to delete ] [ all 'getsfunc' table entries & the supporting code ] Signed-off-by: Jim Warner <james.warner@comcast.net>
163 lines
6.5 KiB
C
163 lines
6.5 KiB
C
/*
|
|
* libprocps - Library to read proc filesystem
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2.1 of the License, or (at your option) any later version.
|
|
*
|
|
* This library is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with this library; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*/
|
|
|
|
#ifndef PROC_MEMINFO_H
|
|
#define PROC_MEMINFO_H
|
|
|
|
__BEGIN_DECLS
|
|
|
|
enum meminfo_item {
|
|
PROCPS_MEMINFO_noop, // ( never altered )
|
|
PROCPS_MEMINFO_extra, // ( reset to zero )
|
|
/*
|
|
note: all of the following values are exressed as KiB
|
|
*/
|
|
PROCPS_MEMINFO_MEM_ACTIVE, // ul_int
|
|
PROCPS_MEMINFO_MEM_ACTIVE_ANON, // ul_int
|
|
PROCPS_MEMINFO_MEM_ACTIVE_FILE, // ul_int
|
|
PROCPS_MEMINFO_MEM_ANON, // ul_int
|
|
PROCPS_MEMINFO_MEM_AVAILABLE, // ul_int
|
|
PROCPS_MEMINFO_MEM_BOUNCE, // ul_int
|
|
PROCPS_MEMINFO_MEM_BUFFERS, // ul_int
|
|
PROCPS_MEMINFO_MEM_CACHED, // ul_int
|
|
PROCPS_MEMINFO_MEM_COMMIT_LIMIT, // ul_int
|
|
PROCPS_MEMINFO_MEM_COMMITTED_AS, // ul_int
|
|
PROCPS_MEMINFO_MEM_HARD_CORRUPTED, // ul_int
|
|
PROCPS_MEMINFO_MEM_DIRTY, // ul_int
|
|
PROCPS_MEMINFO_MEM_FREE, // ul_int
|
|
PROCPS_MEMINFO_MEM_HUGE_ANON, // ul_int
|
|
PROCPS_MEMINFO_MEM_HUGE_FREE, // ul_int
|
|
PROCPS_MEMINFO_MEM_HUGE_RSVD, // ul_int
|
|
PROCPS_MEMINFO_MEM_HUGE_SIZE, // ul_int
|
|
PROCPS_MEMINFO_MEM_HUGE_SURPLUS, // ul_int
|
|
PROCPS_MEMINFO_MEM_HUGE_TOTAL, // ul_int
|
|
PROCPS_MEMINFO_MEM_INACTIVE, // ul_int
|
|
PROCPS_MEMINFO_MEM_INACTIVE_ANON, // ul_int
|
|
PROCPS_MEMINFO_MEM_INACTIVE_FILE, // ul_int
|
|
PROCPS_MEMINFO_MEM_KERNEL_STACK, // ul_int
|
|
PROCPS_MEMINFO_MEM_LOCKED, // ul_int
|
|
PROCPS_MEMINFO_MEM_MAPPED, // ul_int
|
|
PROCPS_MEMINFO_MEM_NFS_UNSTABLE, // ul_int
|
|
PROCPS_MEMINFO_MEM_PAGE_TABLES, // ul_int
|
|
PROCPS_MEMINFO_MEM_SHARED, // ul_int
|
|
PROCPS_MEMINFO_MEM_SLAB, // ul_int
|
|
PROCPS_MEMINFO_MEM_SLAB_RECLAIM, // ul_int
|
|
PROCPS_MEMINFO_MEM_SLAB_UNRECLAIM, // ul_int
|
|
PROCPS_MEMINFO_MEM_TOTAL, // ul_int
|
|
PROCPS_MEMINFO_MEM_UNEVICTABLE, // ul_int
|
|
PROCPS_MEMINFO_MEM_USED, // ul_int
|
|
PROCPS_MEMINFO_MEM_VM_ALLOC_CHUNK, // ul_int
|
|
PROCPS_MEMINFO_MEM_VM_ALLOC_TOTAL, // ul_int
|
|
PROCPS_MEMINFO_MEM_VM_ALLOC_USED, // ul_int
|
|
PROCPS_MEMINFO_MEM_WRITEBACK, // ul_int
|
|
PROCPS_MEMINFO_MEM_WRITEBACK_TMP, // ul_int
|
|
|
|
PROCPS_MEMINFO_DELTA_ACTIVE, // s_int
|
|
PROCPS_MEMINFO_DELTA_ACTIVE_ANON, // s_int
|
|
PROCPS_MEMINFO_DELTA_ACTIVE_FILE, // s_int
|
|
PROCPS_MEMINFO_DELTA_ANON, // s_int
|
|
PROCPS_MEMINFO_DELTA_AVAILABLE, // s_int
|
|
PROCPS_MEMINFO_DELTA_BOUNCE, // s_int
|
|
PROCPS_MEMINFO_DELTA_BUFFERS, // s_int
|
|
PROCPS_MEMINFO_DELTA_CACHED, // s_int
|
|
PROCPS_MEMINFO_DELTA_COMMIT_LIMIT, // s_int
|
|
PROCPS_MEMINFO_DELTA_COMMITTED_AS, // s_int
|
|
PROCPS_MEMINFO_DELTA_HARD_CORRUPTED, // s_int
|
|
PROCPS_MEMINFO_DELTA_DIRTY, // s_int
|
|
PROCPS_MEMINFO_DELTA_FREE, // s_int
|
|
PROCPS_MEMINFO_DELTA_HUGE_ANON, // s_int
|
|
PROCPS_MEMINFO_DELTA_HUGE_FREE, // s_int
|
|
PROCPS_MEMINFO_DELTA_HUGE_RSVD, // s_int
|
|
PROCPS_MEMINFO_DELTA_HUGE_SIZE, // s_int
|
|
PROCPS_MEMINFO_DELTA_HUGE_SURPLUS, // s_int
|
|
PROCPS_MEMINFO_DELTA_HUGE_TOTAL, // s_int
|
|
PROCPS_MEMINFO_DELTA_INACTIVE, // s_int
|
|
PROCPS_MEMINFO_DELTA_INACTIVE_ANON, // s_int
|
|
PROCPS_MEMINFO_DELTA_INACTIVE_FILE, // s_int
|
|
PROCPS_MEMINFO_DELTA_KERNEL_STACK, // s_int
|
|
PROCPS_MEMINFO_DELTA_LOCKED, // s_int
|
|
PROCPS_MEMINFO_DELTA_MAPPED, // s_int
|
|
PROCPS_MEMINFO_DELTA_NFS_UNSTABLE, // s_int
|
|
PROCPS_MEMINFO_DELTA_PAGE_TABLES, // s_int
|
|
PROCPS_MEMINFO_DELTA_SHARED, // s_int
|
|
PROCPS_MEMINFO_DELTA_SLAB, // s_int
|
|
PROCPS_MEMINFO_DELTA_SLAB_RECLAIM, // s_int
|
|
PROCPS_MEMINFO_DELTA_SLAB_UNRECLAIM, // s_int
|
|
PROCPS_MEMINFO_DELTA_TOTAL, // s_int
|
|
PROCPS_MEMINFO_DELTA_UNEVICTABLE, // s_int
|
|
PROCPS_MEMINFO_DELTA_USED, // s_int
|
|
PROCPS_MEMINFO_DELTA_VM_ALLOC_CHUNK, // s_int
|
|
PROCPS_MEMINFO_DELTA_VM_ALLOC_TOTAL, // s_int
|
|
PROCPS_MEMINFO_DELTA_VM_ALLOC_USED, // s_int
|
|
PROCPS_MEMINFO_DELTA_WRITEBACK, // s_int
|
|
PROCPS_MEMINFO_DELTA_WRITEBACK_TMP, // s_int
|
|
|
|
PROCPS_MEMINFO_MEMHI_FREE, // ul_int
|
|
PROCPS_MEMINFO_MEMHI_TOTAL, // ul_int
|
|
PROCPS_MEMINFO_MEMHI_USED, // ul_int
|
|
|
|
PROCPS_MEMINFO_MEMLO_FREE, // ul_int
|
|
PROCPS_MEMINFO_MEMLO_TOTAL, // ul_int
|
|
PROCPS_MEMINFO_MEMLO_USED, // ul_int
|
|
|
|
PROCPS_MEMINFO_SWAP_CACHED, // ul_int
|
|
PROCPS_MEMINFO_SWAP_FREE, // ul_int
|
|
PROCPS_MEMINFO_SWAP_TOTAL, // ul_int
|
|
PROCPS_MEMINFO_SWAP_USED // ul_int
|
|
};
|
|
|
|
|
|
struct meminfo_result {
|
|
enum meminfo_item item;
|
|
union {
|
|
signed int s_int;
|
|
unsigned long ul_int;
|
|
} result;
|
|
};
|
|
|
|
struct meminfo_stack {
|
|
struct meminfo_result *head;
|
|
};
|
|
|
|
|
|
#define PROCPS_MEMINFO_GET( meminfo, actual_enum, type ) \
|
|
procps_meminfo_get( meminfo, actual_enum ) -> result . type
|
|
|
|
#define PROCPS_MEMINFO_VAL( relative_enum, type, stack) \
|
|
stack -> head [ relative_enum ] . result . type
|
|
|
|
|
|
struct procps_meminfo;
|
|
|
|
int procps_meminfo_new (struct procps_meminfo **info);
|
|
int procps_meminfo_ref (struct procps_meminfo *info);
|
|
int procps_meminfo_unref (struct procps_meminfo **info);
|
|
|
|
struct meminfo_result *procps_meminfo_get (
|
|
struct procps_meminfo *info,
|
|
enum meminfo_item item);
|
|
|
|
struct meminfo_stack *procps_meminfo_select (
|
|
struct procps_meminfo *info,
|
|
enum meminfo_item *items,
|
|
int numitems);
|
|
|
|
__END_DECLS
|
|
|
|
#endif
|