/* * This is memory_tru64.cpp to retrieve memory information under Tru64/Alpha. * * Implemented by Tom Leitner, Tom@radar.tu-graz.ac.at * * WARNING: This module requires linking with -lmach * * This routine is based on m_decosf1.c from the "top" program written by: * * AUTHOR: Anthony Baxter, <anthony@aaii.oz.au> * */ #include <stdio.h> #include <unistd.h> #include <sys/socket.h> #include <sys/mbuf.h> #include <net/route.h> #include <sys/table.h> extern "C" { #include <mach/mach_traps.h> } #include <mach/vm_statistics.h> #define pagetob(size) (MEMORY(1024L) * ((long) (size) << (long) pageshift)) #define LOG1024 10 extern "C" void vm_statistics(task_t, vm_statistics_data_t*); void KMemoryWidget::update() { int pageshift; /* log base 2 of the pagesize */ register int pagesize; vm_statistics_data_t vmstats; int swap_pages=0,swap_free=0,i; struct tbl_swapinfo swbuf; /* get the page size with "getpagesize" and calculate pageshift from it */ pagesize = getpagesize(); pageshift = 0; while (pagesize > 1) { pageshift++; pagesize >>= 1; } /* we only need the amount of log(2)1024 for our conversion */ pageshift -= LOG1024; /* memory information */ /* this is possibly bogus - we work out total # pages by */ /* adding up the free, active, inactive, wired down, and */ /* zero filled. Anyone who knows a better way, TELL ME! */ /* Change: dont use zero filled. */ (void) ::vm_statistics(::task_self(), &vmstats); /* thanks DEC for the table() command. No thanks at all for */ /* omitting the man page for it from OSF/1 1.2, and failing */ /* to document SWAPINFO in the 1.3 man page. Lets hear it for */ /* include files. */ i=0; while(table(TBL_SWAPINFO,i,&swbuf,1,sizeof(struct tbl_swapinfo))>0) { swap_pages += swbuf.size; swap_free += swbuf.free; i++; } Memory_Info[TOTAL_MEM] = pagetob((vmstats.free_count + vmstats.active_count + vmstats.inactive_count + vmstats.wire_count)); Memory_Info[FREE_MEM] = pagetob(vmstats.free_count); Memory_Info[SHARED_MEM] = NO_MEMORY_INFO; /* FIXME ?? */ Memory_Info[BUFFER_MEM] = NO_MEMORY_INFO; /* FIXME ?? */ #ifdef __GNUC__ #warning "FIXME: Memory_Info[CACHED_MEM]" #endif Memory_Info[CACHED_MEM] = NO_MEMORY_INFO; /* cached memory in ram */ Memory_Info[SWAP_MEM] = pagetob(swap_pages); Memory_Info[FREESWAP_MEM] = pagetob(swap_free); }