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/*
* Copyright (c) 2023-2024 Ian Marco Moffett and the Osmora Team.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of Hyra nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <sys/panic.h>
#include <machine/cpu.h>
#include <fs/procfs.h>
#include <vm/vm.h>
#include <string.h>
static bool populated = false;
static int
procfs_ver_read(struct proc_entry *p, struct sio_txn *sio)
{
char buf[1024];
size_t len;
len = snprintf(buf, sizeof(buf), "Hyra/%s v%s: %s (%s)\n",
HYRA_ARCH, HYRA_VERSION,
HYRA_BUILDDATE, HYRA_BUILDBRANCH);
/* Truncate if needed */
if (len > sio->len)
len = sio->len;
memcpy(sio->buf, buf, len);
return len;
}
static int
procfs_memstat_read(struct proc_entry *p, struct sio_txn *sio)
{
struct vm_memstat stat;
struct physmem_stat *pstat;
char buf[1024];
size_t len;
stat = vm_memstat();
pstat = &stat.pmem_stat;
len = snprintf(buf, sizeof(buf),
"TotalMem: %d KiB\n"
"ReservedMem: %d KiB\n"
"AvailableMem: %d KiB\n"
"AllocatedMem: %d KiB\n"
"VMemObjCount: %d\n",
pstat->total_kib,
pstat->reserved_kib,
pstat->avl_kib,
pstat->alloc_kib,
stat.vmobj_cnt);
/* Truncate if needed */
if (len > sio->len)
len = sio->len;
memcpy(sio->buf, buf, len);
return len;
}
/*
* Populate procfs with basic misc entries
*/
void
procfs_populate(void)
{
struct proc_entry *version;
struct proc_entry *memstat;
if (populated)
return;
populated = true;
/* Kernel version */
version = procfs_alloc_entry();
version->read = procfs_ver_read;
procfs_add_entry("version", version);
/* Memstat */
memstat = procfs_alloc_entry();
memstat->read = procfs_memstat_read;
procfs_add_entry("memstat", memstat);
}
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