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#include <net-snmp/net-snmp-config.h>
#include <net-snmp/net-snmp-includes.h>
#include <net-snmp/agent/net-snmp-agent-includes.h>
#include <net-snmp/agent/hardware/memory.h>
#if HAVE_SYS_SWAP_H
#include <sys/swap.h>
#endif
#if HAVE_SYS_SYSGET_H
#include <sys/sysget.h>
#endif
#if HAVE_SYS_SYSMP_H
#include <sys/sysmp.h>
#endif
/*
* Load the latest memory usage statistics
*/
int netsnmp_mem_arch_load( netsnmp_cache *cache, void *magic ) {
netsnmp_memory_info *mem;
struct rminfo meminfo; /* struct for getting memory info, see sys/sysmp.h */
int pagesz, rminfosz;
off_t swaptotal, swapfree;
/*
* Retrieve the memory information from the underlying O/S...
*/
DEBUGMSGTL(("hardware/memory/memory_irix", "Start retrieving values from OS\n"));
pagesz = getpagesize();
DEBUGMSGTL(("hardware/memory/memory_irix", "Page size: %d\n", pagesz));
rminfosz = (int)sysmp(MP_SASZ, MPSA_RMINFO);
DEBUGMSGTL(("hardware/memory/memory_irix", "rminfo size: %d\n", rminfosz));
if (sysmp(MP_SAGET, MPSA_RMINFO, &meminfo, rminfosz) < 0) {
snmp_log(LOG_ERR, "memory_irix: sysmp failed!\n");
return -1;
}
swapctl(SC_GETSWAPTOT, &swaptotal);
swapctl(SC_GETFREESWAP, &swapfree);
/*
* ... and save this in a standard form.
*/
mem = netsnmp_memory_get_byIdx( NETSNMP_MEM_TYPE_PHYSMEM, 1 );
if (!mem) {
snmp_log_perror("No Physical Memory info entry");
} else {
if (!mem->descr)
mem->descr = strdup("Physical memory");
mem->units = pagesz;
mem->size = meminfo.physmem;
mem->free = meminfo.availrmem;
mem->other = -1;
DEBUGMSGTL(("hardware/memory/memory_irix", "Physical memory: size %u, free %u\n", mem->size, mem->free));
}
mem = netsnmp_memory_get_byIdx( NETSNMP_MEM_TYPE_VIRTMEM, 1 );
if (!mem) {
snmp_log_perror("No Virtual Memory info entry");
} else {
if (!mem->descr)
mem->descr = strdup("Virtual memory");
mem->units = pagesz; /* swaptotal is in blocks, so adjust below */
mem->size = meminfo.physmem + (swaptotal*512/pagesz);
mem->free = meminfo.availsmem;
mem->other = -1;
DEBUGMSGTL(("hardware/memory/memory_irix", "Virtual memory: size %u, free %u\n", mem->size, mem->free));
}
mem = netsnmp_memory_get_byIdx( NETSNMP_MEM_TYPE_SWAP, 1 );
if (!mem) {
snmp_log_perror("No Swap info entry");
} else {
if (!mem->descr)
mem->descr = strdup("Swap space");
mem->units = 1024;
mem->size = swaptotal/2; /* blocks to KB */
mem->free = swapfree/2; /* blocks to KB */
mem->other = -1;
DEBUGMSGTL(("hardware/memory/memory_irix", "Swap: size %u, free %u\n", mem->size, mem->free));
}
return 0;
}
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