HostInfoLinux.h

Classes

Global Functions -- HostInfo for Linux machines. (full description)

HostInfo for Linux machines. (source)

Types

namespace casa

staticinlinechar*

skip_ws(constchar*p)

while(isspace(*p))p++

return(char*)p

staticinlinechar*

skip_token(constchar*p)

while(isspace(*p))p++

while(*p&&!isspace(*p))p++

return(char*)p

HostMachineInfo::HostMachineInfo():valid(1)

charbuffer[4096+1]

intfd,len

char*p

structstatfssb

if(statfs(PROCFS,&sb)<0||sb.f_type! = PROC_SUPER_MAGIC)

fprintf(stderr,"procfilesystemnotmountedon"PROCFS"\n")

valid = 0

return

cpus = 0

fd = open(CPUINFO,O_RDONLY)

len = read(fd,buffer,sizeof(buffer)-1)

close(fd)

buffer[len] = '\0'

p = buffer

toendsoflines*/

while(*p)

if(!strncmp(p,"processor",9))++cpus

p = strchr(p,'\n')

if(*p = ='\n')++p

fs/proc/proc_misc.cinthekernelsourcetree*/

fd = open(MEMINFO,O_RDONLY)

len = read(fd,buffer,sizeof(buffer)-1)

close(fd)

buffer[len] = '\0'

intret

unsignedlongmem_total,swp_total

p = strstr(buffer,"MemTotal:")

if((ret = sscanf(p,"MemTotal:%lukB\n",&mem_total))!=1)

cerr<<"ErrorparsingMemTotalin/proc/meminfo\n"

memory_total = mem_total

p = strstr(buffer,"SwapTotal:")

if((ret = sscanf(p,"SwapTotal:%lukB\n",&swp_total))!=1)

cerr<<"ErrorparsingSwapTotalin/proc/meminfo\n"

swap_total = swp_total

voidHostMachineInfo::update_info()

charbuffer[4096+1]

intfd,len

char*p

intret

unsignedlongmem_total,mem_free,swp_total,swp_free

fd = open(MEMINFO,O_RDONLY)

len = read(fd,buffer,sizeof(buffer)-1)

close(fd)

buffer[len] = '\0'

p = strstr(buffer,"MemTotal:")

if((ret = sscanf(p,"MemTotal:%lukB\nMemFree:%lukB\n",

&mem_total,&mem_free))! = 2)

cerr<<"ErrorparsingMemTotalandMemFreein/proc/meminfo\n"

memory_total = mem_total

memory_free = mem_free

memory_used = memory_total-memory_free

p = strstr(buffer,"SwapTotal:")

if((ret = sscanf(p,"SwapTotal:%lukB\nSwapFree:%lukB\n",

&swp_total,&swp_free))! = 2)

cerr<<"ErrorparsingSwapTotalandSwapFreein/proc/meminfo\n"

swap_total = swp_total

swap_free = swp_free

swap_used = swap_total-swap_free

Interface

Description

Review Status

Reviewed By:

UNKNOWN

Date Reviewed:

before2004/08/25

Prerequisite

• HostInfo

Synopsis

Member Description

namespace casa