diff options
Diffstat (limited to 'ksysguard/ksysguardd/Solaris/Memory.c')
| -rw-r--r-- | ksysguard/ksysguardd/Solaris/Memory.c | 223 |
1 files changed, 223 insertions, 0 deletions
diff --git a/ksysguard/ksysguardd/Solaris/Memory.c b/ksysguard/ksysguardd/Solaris/Memory.c new file mode 100644 index 000000000..efc2f18ac --- /dev/null +++ b/ksysguard/ksysguardd/Solaris/Memory.c @@ -0,0 +1,223 @@ +/* + KSysGuard, the KDE System Guard + + Copyright (c) 1999, 2000 Chris Schlaeger <[email protected]> + + Solaris support by Torsten Kasch <[email protected]> + + This program is free software; you can redistribute it and/or + modify it under the terms of version 2 of the GNU General Public + License as published by the Free Software Foundation. + + This program 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 General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + +*/ + +#include <stdio.h> +#include <stdlib.h> +#include <unistd.h> + +#include "config.h" + +/* Stop <sys/swap.h> from crapping out on 32-bit architectures. */ + +#if !defined(_LP64) && _FILE_OFFSET_BITS == 64 +# undef _FILE_OFFSET_BITS +# define _FILE_OFFSET_BITS 32 +#endif + +#include <sys/stat.h> +#include <sys/swap.h> +#include <vm/anon.h> + +#ifdef HAVE_KSTAT +#include <kstat.h> +#endif + +#include "ksysguardd.h" +#include "Command.h" +#include "Memory.h" + +static int Dirty = 1; +static t_memsize totalmem = (t_memsize) 0; +static t_memsize freemem = (t_memsize) 0; +static long totalswap = 0L; +static long freeswap = 0L; +static struct anoninfo am_swap; + +/* + * this is borrowed from top's m_sunos5 module + * used by permission from William LeFebvre + */ +static int pageshift; +static long (*p_pagetok) (); +#define pagetok(size) ((*p_pagetok)(size)) + +long pagetok_none( long size ) { + return( size ); +} + +long pagetok_left( long size ) { + return( size << pageshift ); +} + +long pagetok_right( long size ) { + return( size >> pageshift ); +} + +void initMemory( struct SensorModul* sm ) { + + long i = sysconf( _SC_PAGESIZE ); + + pageshift = 0; + while( (i >>= 1) > 0 ) + pageshift++; + + /* calculate an amount to shift to K values */ + /* remember that log base 2 of 1024 is 10 (i.e.: 2^10 = 1024) */ + pageshift -= 10; + + /* now determine which pageshift function is appropriate for the + result (have to because x << y is undefined for y < 0) */ + if( pageshift > 0 ) { + /* this is the most likely */ + p_pagetok = pagetok_left; + } else if( pageshift == 0 ) { + p_pagetok = pagetok_none; + } else { + p_pagetok = pagetok_right; + pageshift = -pageshift; + } + +#ifdef HAVE_KSTAT + registerMonitor( "mem/physical/free", "integer", + printMemFree, printMemFreeInfo, sm ); + registerMonitor( "mem/physical/used", "integer", + printMemUsed, printMemUsedInfo, sm ); +#endif + registerMonitor( "mem/swap/free", "integer", + printSwapFree, printSwapFreeInfo, sm ); + registerMonitor( "mem/swap/used", "integer", + printSwapUsed, printSwapUsedInfo, sm ); +} + +void exitMemory( void ) { +} + +int updateMemory( void ) { + + long swaptotal; + long swapfree; + long swapused; +#ifdef HAVE_KSTAT + kstat_ctl_t *kctl; + kstat_t *ksp; + kstat_named_t *kdata; +#endif /* HAVE_KSTAT */ + swaptotal = swapused = swapfree = 0L; + + /* + * Retrieve overall swap information from anonymous memory structure - + * which is the same way "swap -s" retrieves it's statistics. + * + * swapctl(SC_LIST, void *arg) does not return what we are looking for. + */ + + if (swapctl(SC_AINFO, &am_swap) == -1) + return(0); + + swaptotal = am_swap.ani_max; + swapused = am_swap.ani_resv; + swapfree = swaptotal - swapused; + + totalswap = pagetok(swaptotal); + freeswap = pagetok(swapfree); + +#ifdef HAVE_KSTAT + /* + * get a kstat handle and update the user's kstat chain + */ + if( (kctl = kstat_open()) == NULL ) + return( 0 ); + while( kstat_chain_update( kctl ) != 0 ) + ; + + totalmem = pagetok( sysconf( _SC_PHYS_PAGES )); + + /* + * traverse the kstat chain to find the appropriate statistics + */ + if( (ksp = kstat_lookup( kctl, "unix", 0, "system_pages" )) == NULL ) + return( 0 ); + if( kstat_read( kctl, ksp, NULL ) == -1 ) + return( 0 ); + + /* + * lookup the data + */ + kdata = (kstat_named_t *) kstat_data_lookup( ksp, "freemem" ); + if( kdata != NULL ) + freemem = pagetok( kdata->value.ui32 ); + + kstat_close( kctl ); +#endif /* ! HAVE_KSTAT */ + + Dirty = 0; + + return( 0 ); +} + +void printMemFreeInfo( const char *cmd ) { + if( Dirty ) + updateMemory(); + fprintf(CurrentClient, "Free Memory\t0\t%ld\tKB\n", totalmem ); +} + +void printMemFree( const char *cmd ) { + if( Dirty ) + updateMemory(); + fprintf(CurrentClient, "%ld\n", freemem ); +} + +void printMemUsedInfo( const char *cmd ) { + if( Dirty ) + updateMemory(); + fprintf(CurrentClient, "Used Memory\t0\t%ld\tKB\n", totalmem ); +} + +void printMemUsed( const char *cmd ) { + if( Dirty ) + updateMemory(); + fprintf(CurrentClient, "%ld\n", totalmem - freemem ); +} + +void printSwapFreeInfo( const char *cmd ) { + if( Dirty ) + updateMemory(); + fprintf(CurrentClient, "Free Swap\t0\t%ld\tKB\n", totalswap ); +} + +void printSwapFree( const char *cmd ) { + if( Dirty ) + updateMemory(); + fprintf(CurrentClient, "%ld\n", freeswap ); +} + +void printSwapUsedInfo( const char *cmd ) { + if( Dirty ) + updateMemory(); + fprintf(CurrentClient, "Used Swap\t0\t%ld\tKB\n", totalswap ); +} + +void printSwapUsed( const char *cmd ) { + if( Dirty ) + updateMemory(); + fprintf(CurrentClient, "%ld\n", totalswap - freeswap ); +} |