diff options
Diffstat (limited to 'agent/mibgroup/hardware/memory/memory_solaris.c')
| -rw-r--r-- | agent/mibgroup/hardware/memory/memory_solaris.c | 172 |
1 files changed, 172 insertions, 0 deletions
diff --git a/agent/mibgroup/hardware/memory/memory_solaris.c b/agent/mibgroup/hardware/memory/memory_solaris.c new file mode 100644 index 0000000..3dfff8b --- /dev/null +++ b/agent/mibgroup/hardware/memory/memory_solaris.c @@ -0,0 +1,172 @@ +#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> + +#include <unistd.h> +#include <kstat.h> +#include <sys/stat.h> +#include <sys/swap.h> + +#ifndef MAXSTRSIZE +#define MAXSTRSIZE 1024 +#endif + +void getSwapInfo(long *total_mem, long *free_mem); + + + /* + * Load the latest memory usage statistics + */ +int netsnmp_mem_arch_load( netsnmp_cache *cache, void *magic ) { + +#ifndef _SC_PHYS_PAGES + extern kstat_ctl_t *kstat_fd; /* defined in kernel_sunos5.c */ + kstat_t *ksp1; + kstat_named_t *kn; +#endif +#ifdef SC_AINFO + struct anoninfo ai; +#endif + + long phys_mem = 0; + long phys_free = 0; + long swap_pages = 0; + long swap_free = 0; + long pagesize = 0; + netsnmp_memory_info *mem; + + /* + * Retrieve the memory information from the underlying O/S... + */ + pagesize = getpagesize(); + getSwapInfo( &swap_pages, &swap_free ); +#ifdef SC_AINFO + swapctl(SC_AINFO, &ai); +#endif +#ifdef _SC_PHYS_PAGES + phys_mem = sysconf(_SC_PHYS_PAGES); + phys_free = sysconf(_SC_AVPHYS_PAGES); +#else + ksp1 = kstat_lookup(kstat_fd, "unix", 0, "system_pages"); + kstat_read(kstat_fd, ksp1, 0); + kn = kstat_data_lookup(ksp1, "physmem"); + phys_mem = kn->value.ul; +#ifdef SC_AINFO + phys_free = (ai.ani_max - ai.ani_resv) - swap_free; +#else + phys_free = -1; +#endif +#endif + + /* + * ... and save this in a standard form. + */ + mem = netsnmp_memory_get_byIdx( NETSNMP_MEM_TYPE_PHYSMEM, 1 ); + if (!mem) { + snmp_log_perror("No Memory info entry"); + } else { + if (!mem->descr) + mem->descr = strdup( "Physical memory" ); + mem->units = pagesize; + mem->size = phys_mem; + mem->free = phys_free; + mem->other = -1; + } + +#ifdef SC_AINFO + 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 = pagesize; /* or 1024? */ + mem->size = ai.ani_max; + mem->free = (ai.ani_max - ai.ani_resv); + mem->other = -1; + } +#endif + + 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 = pagesize; + mem->size = swap_pages; + mem->free = swap_free; + mem->other = -1; + } + +/* + mem = netsnmp_memory_get_byIdx( NETSNMP_MEM_TYPE_MISC, 1 ); + if (!mem) { + snmp_log_perror("No Buffer, etc info entry"); + } else { + mem->units = getpagesize(); + mem->size = -1; + mem->free = getTotalFree(); + mem->other = -1; + } +*/ + + return 0; +} + +/* + * Adapted from UCD implementation + */ +void +getSwapInfo(long *total_mem, long *total_free) +{ + size_t num; + int i, n; + swaptbl_t *s; + netsnmp_memory_info *mem; + char *strtab; + char buf[1024]; + + num = swapctl(SC_GETNSWP, 0); + s = malloc(num * sizeof(swapent_t) + sizeof(struct swaptable)); + if (!s) + return; + + strtab = (char *) malloc((num + 1) * MAXSTRSIZE); + if (!strtab) { + free(s); + return; + } + + for (i = 0; i < (num + 1); i++) { + s->swt_ent[i].ste_path = strtab + (i * MAXSTRSIZE); + } + s->swt_n = num + 1; + n = swapctl(SC_LIST, s); + + if (n > 1) { + for (i = 0; i < n; ++i) { + mem = netsnmp_memory_get_byIdx( NETSNMP_MEM_TYPE_SWAP+1+i, 1 ); + if (!mem) + continue; + if (!mem->descr) { + sprintf(buf, "swap #%d %s", i, s->swt_ent[i].ste_path); + mem->descr = strdup( buf ); + } + mem->units = getpagesize(); + mem->size = s->swt_ent[i].ste_pages; + mem->free = s->swt_ent[i].ste_free; + mem->other = -1; + *total_mem += mem->size; + *total_free += mem->free; + } + } + else { + *total_mem = s->swt_ent[0].ste_pages; + *total_free = s->swt_ent[0].ste_free; + } + + free(strtab); + free(s); +} |