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LibC: Add _SC_PHYS_PAGES and _SC_AVPHYS_PAGES

This commit is contained in:
Bananymous 2026-04-02 15:41:26 +03:00
parent 7e6b8c93b4
commit cf31ea9cbe
2 changed files with 24 additions and 0 deletions
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4
userspace/libraries/LibC/include/unistd.h
View File

@ -494,6 +494,10 @@ enum
#define _SC_XOPEN_UUCP _SC_XOPEN_UUCP #define _SC_XOPEN_UUCP _SC_XOPEN_UUCP
_SC_XOPEN_VERSION, _SC_XOPEN_VERSION,
#define _SC_XOPEN_VERSION _SC_XOPEN_VERSION #define _SC_XOPEN_VERSION _SC_XOPEN_VERSION
_SC_PHYS_PAGES,
#define _SC_PHYS_PAGES _SC_PHYS_PAGES
_SC_AVPHYS_PAGES,
#define _SC_AVPHYS_PAGES _SC_AVPHYS_PAGES
}; };
#define F_OK 0x01 #define F_OK 0x01

20
userspace/libraries/LibC/unistd.cpp
View File

@ -19,6 +19,7 @@
#include <stdio.h> #include <stdio.h>
#include <stdlib.h> #include <stdlib.h>
#include <string.h> #include <string.h>
#include <sys/banan-os.h>
#include <sys/stat.h> #include <sys/stat.h>
#include <sys/syscall.h> #include <sys/syscall.h>
#include <sys/time.h> #include <sys/time.h>
@ -1180,6 +1181,25 @@ long sysconf(int name)
case _SC_GETGR_R_SIZE_MAX: return 1024; case _SC_GETGR_R_SIZE_MAX: return 1024;
case _SC_GETPW_R_SIZE_MAX: return 1024; case _SC_GETPW_R_SIZE_MAX: return 1024;
case _SC_THREAD_STACK_MIN: return PTHREAD_STACK_MIN; case _SC_THREAD_STACK_MIN: return PTHREAD_STACK_MIN;
case _SC_PHYS_PAGES:
case _SC_AVPHYS_PAGES:
{
int fd = open("/proc/meminfo", O_RDONLY);
if (fd == -1)
return -1;
full_meminfo_t meminfo;
const size_t nread = read(fd, &meminfo, sizeof(meminfo));
close(fd);
if (nread != sizeof(meminfo))
return -1;
if (name == _SC_PHYS_PAGES)
return meminfo.free_pages + meminfo.used_pages;
if (name == _SC_AVPHYS_PAGES)
return meminfo.free_pages;
}
} }
errno = EINVAL; errno = EINVAL;