diff options
| -rw-r--r-- | include/sys/sysinfo.h | 2 | ||||
| -rw-r--r-- | libc/unistd/sysconf.c | 34 |
2 files changed, 26 insertions, 10 deletions
diff --git a/include/sys/sysinfo.h b/include/sys/sysinfo.h index 00e363371..4e756e99e 100644 --- a/include/sys/sysinfo.h +++ b/include/sys/sysinfo.h @@ -56,13 +56,11 @@ extern int sysinfo (struct sysinfo *__info) __THROW; #define get_nprocs() (sysconf(_SC_NPROCESSORS_ONLN)) -#if 0 /* Return number of physical pages of memory in the system. */ extern long int get_phys_pages (void) __THROW; /* Return number of available physical pages of memory in the system. */ extern long int get_avphys_pages (void) __THROW; -#endif __END_DECLS diff --git a/libc/unistd/sysconf.c b/libc/unistd/sysconf.c index 503b39585..3d3b1a5ff 100644 --- a/libc/unistd/sysconf.c +++ b/libc/unistd/sysconf.c @@ -43,6 +43,32 @@ #include <dirent.h> #include "internal/parse_config.h" +long int get_phys_pages(void) +{ + struct sysinfo si; + int ps = getpagesize();; + + sysinfo(&si); + + if (ps >= si.mem_unit) + return si.totalram / (ps / si.mem_unit); + else + return si.totalram * (si.mem_unit / ps); +} + +long int get_avphys_pages(void) +{ + struct sysinfo si; + int ps = getpagesize();; + + sysinfo(&si); + + if (ps >= si.mem_unit) + return si.freeram / (ps / si.mem_unit); + else + return si.freeram * (si.mem_unit / ps); +} + static int nprocessors_onln(void) { char **l = NULL; @@ -747,18 +773,10 @@ long int sysconf(int name) RETURN_FUNCTION(nprocessors_onln()); case _SC_PHYS_PAGES: -#if 0 RETURN_FUNCTION(get_phys_pages()); -#else - RETURN_NEG_1; -#endif case _SC_AVPHYS_PAGES: -#if 0 RETURN_FUNCTION(get_avphys_pages()); -#else - RETURN_NEG_1; -#endif case _SC_ATEXIT_MAX: return __UCLIBC_MAX_ATEXIT; |