diff options
Diffstat (limited to 'ksysguard/ksysguardd/OpenBSD/memory.c')
| -rw-r--r-- | ksysguard/ksysguardd/OpenBSD/memory.c | 207 |
1 files changed, 207 insertions, 0 deletions
diff --git a/ksysguard/ksysguardd/OpenBSD/memory.c b/ksysguard/ksysguardd/OpenBSD/memory.c new file mode 100644 index 000000000..aaf893268 --- /dev/null +++ b/ksysguard/ksysguardd/OpenBSD/memory.c @@ -0,0 +1,207 @@ +/* + KSysGuard, the KDE System Guard + + Copyright (c) 1999 Chris Schlaeger <cs@kde.org> + Copyright (c) 1999-2000 Hans Petter Bieker <bieker@kde.org> + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + 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 <sys/param.h> +#include <sys/sysctl.h> +#include <sys/dkstat.h> +#include <sys/swap.h> + +#include <limits.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <unistd.h> + +#include "Command.h" +#include "memory.h" +#include "ksysguardd.h" + +static size_t Total = 0; +static size_t MFree = 0; +static size_t Active = 0; +static size_t InActive = 0; +static size_t STotal = 0; +static size_t SFree = 0; +static size_t SUsed = 0; +static int pageshift = 0; + +/* define pagetok in terms of pageshift */ +#define pagetok(size) ((size) << pageshift) + +void swapmode(int *used, int *total); + +void +initMemory(struct SensorModul* sm) +{ + int pagesize; + static int physmem_mib[] = { CTL_HW, HW_PHYSMEM }; + size_t size; + /* get the page size with "getpagesize" and calculate pageshift from + * it */ + pagesize = getpagesize(); + pageshift = 0; + while (pagesize > 1) { + pageshift++; + pagesize >>= 1; + } + size = sizeof(Total); + sysctl(physmem_mib, 2, &Total, &size, NULL, 0); + Total /= 1024; + swapmode(&SUsed, &STotal); + + registerMonitor("mem/physical/free", "integer", printMFree, printMFreeInfo, sm); + registerMonitor("mem/physical/active", "integer", printActive, printActiveInfo, sm); + registerMonitor("mem/physical/inactive", "integer", printInActive, printInActiveInfo, sm); + registerMonitor("mem/swap/free", "integer", printSwapFree, printSwapFreeInfo, sm); + registerMonitor("mem/swap/used", "integer", printSwapUsed, printSwapUsedInfo, sm); +} + +void +exitMemory(void) +{ +} + +int +updateMemory(void) +{ + static int vmtotal_mib[] = {CTL_VM, VM_METER}; + size_t size; + struct vmtotal vmtotal; + size = sizeof(vmtotal); + + if (sysctl(vmtotal_mib, 2, &vmtotal, &size, NULL, 0) < 0) + return -1; + + MFree = pagetok(vmtotal.t_free); + MFree /= 1024; + Active = pagetok(vmtotal.t_arm); + Active /= 1024; + InActive = pagetok(vmtotal.t_rm); + InActive /= 1024; + InActive -= Active; + + swapmode(&SUsed, &STotal); + SFree = STotal - SUsed; + return 0; +} + +void +printMFree(const char* cmd) +{ + fprintf(CurrentClient, "%d\n", MFree); +} + +void +printMFreeInfo(const char* cmd) +{ + fprintf(CurrentClient, "Free Memory\t0\t%d\tKB\n", Total); +} + +void +printActive(const char* cmd) +{ + fprintf(CurrentClient, "%d\n", Active); +} + +void +printActiveInfo(const char* cmd) +{ + fprintf(CurrentClient, "Active Memory\t0\t%d\tKB\n", Total); +} + +void +printInActive(const char* cmd) +{ + fprintf(CurrentClient, "%d\n", InActive); +} + +void +printInActiveInfo(const char* cmd) +{ + fprintf(CurrentClient, "InActive Memory\t0\t%d\tKB\n", Total); +} + +void +printSwapUsed(const char* cmd) +{ + fprintf(CurrentClient, "%d\n", SUsed); +} + +void +printSwapUsedInfo(const char* cmd) +{ + fprintf(CurrentClient, "Used Swap Memory\t0\t%d\tKB\n", STotal); +} + +void +printSwapFree(const char* cmd) +{ + fprintf(CurrentClient, "%d\n", SFree); +} + +void +printSwapFreeInfo(const char* cmd) +{ + fprintf(CurrentClient, "Free Swap Memory\t0\t%d\tKB\n", STotal); +} + +/* +This function swapmode was originally written by Tobias +Weingartner <weingart@openbsd.org> + +Taken from OpenBSD top command +*/ +void +swapmode (int *used, int *total) +{ + int nswap, rnswap, i; + struct swapent *swdev; + + *total = *used = 0; + + /* Number of swap devices */ + nswap = swapctl(SWAP_NSWAP, 0, 0); + if (nswap == 0) + return; + + swdev = (struct swapent *) malloc(nswap * sizeof(*swdev)); + if (swdev == NULL) + return; + + rnswap = swapctl(SWAP_STATS, swdev, nswap); + if (rnswap == -1) { + free(swdev); + return; + } + + /* if rnswap != nswap, then what? */ + + /* Total things up */ + for (i = 0; i < nswap; i++) { + if (swdev[i].se_flags & SWF_ENABLE) { + *used += (swdev[i].se_inuse / (1024 / DEV_BSIZE)); + *total += (swdev[i].se_nblks / (1024 / DEV_BSIZE)); + } + } + + free(swdev); +} |