Get HDD size programatically on MacOS using C++
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I am building an application and I need to get the HDD size:
I am working on Mac OS. I have tried this:
#include <sys/param.h>
#include <sys/mount.h>
float MonitoringWorker::getHDDSize()
struct statfs statf;
statfs(".", &statf);
std::cout << "statf.f_bsize = " << statf.f_bsize << std::endl;
std::cout << "statf.f_blocks = " << statf.f_blocks << std::endl;
std::cout << "statf.f_bavail = " << statf.f_bavail << std::endl;
std::cout << "statf.f_bfree = "<< statf.f_bfree << std::endl;
std::cout << "GB = "<< ((statf.f_bsize * statf.f_blocks) / kBytesInGB)<< std::endl;
return 0;
I am seeing that the result in GB is 465. However checking System Information tells me that I have 500GB
What am I doing wrong? Is this best way to get those numbers?
Note: I am using C++ on Mac OS, can't use Objective-C
Thanks in advance
macos c++11 filesystems
edited Nov 10 at 16:55
Tom Harrington
51.5k596126
asked Nov 10 at 11:59
RuLoViC
16512
add a comment |
up vote
0
down vote
favorite
I am building an application and I need to get the HDD size:
I am working on Mac OS. I have tried this:
#include <sys/param.h>
#include <sys/mount.h>
float MonitoringWorker::getHDDSize()
struct statfs statf;
statfs(".", &statf);
std::cout << "statf.f_bsize = " << statf.f_bsize << std::endl;
std::cout << "statf.f_blocks = " << statf.f_blocks << std::endl;
std::cout << "statf.f_bavail = " << statf.f_bavail << std::endl;
std::cout << "statf.f_bfree = "<< statf.f_bfree << std::endl;
std::cout << "GB = "<< ((statf.f_bsize * statf.f_blocks) / kBytesInGB)<< std::endl;
return 0;
I am seeing that the result in GB is 465. However checking System Information tells me that I have 500GB
What am I doing wrong? Is this best way to get those numbers?
Note: I am using C++ on Mac OS, can't use Objective-C
Thanks in advance
macos c++11 filesystems
edited Nov 10 at 16:55
Tom Harrington
51.5k596126
asked Nov 10 at 11:59
RuLoViC
16512
1
The program gets the file system capacity, not the physical capacity of the HDD.
– eprom
Nov 11 at 15:57
how can I get the physical capacity, then?
– RuLoViC
Nov 11 at 19:16
add a comment |
up vote
0
down vote
favorite
up vote
0
down vote
favorite
I am building an application and I need to get the HDD size:
I am working on Mac OS. I have tried this:
#include <sys/param.h>
#include <sys/mount.h>
float MonitoringWorker::getHDDSize()
struct statfs statf;
statfs(".", &statf);
std::cout << "statf.f_bsize = " << statf.f_bsize << std::endl;
std::cout << "statf.f_blocks = " << statf.f_blocks << std::endl;
std::cout << "statf.f_bavail = " << statf.f_bavail << std::endl;
std::cout << "statf.f_bfree = "<< statf.f_bfree << std::endl;
std::cout << "GB = "<< ((statf.f_bsize * statf.f_blocks) / kBytesInGB)<< std::endl;
return 0;
I am seeing that the result in GB is 465. However checking System Information tells me that I have 500GB
What am I doing wrong? Is this best way to get those numbers?
Note: I am using C++ on Mac OS, can't use Objective-C
Thanks in advance
macos c++11 filesystems
edited Nov 10 at 16:55
Tom Harrington
51.5k596126
asked Nov 10 at 11:59
RuLoViC
16512
I am building an application and I need to get the HDD size:
I am working on Mac OS. I have tried this:
#include <sys/param.h>
#include <sys/mount.h>
float MonitoringWorker::getHDDSize()
struct statfs statf;
statfs(".", &statf);
std::cout << "statf.f_bsize = " << statf.f_bsize << std::endl;
std::cout << "statf.f_blocks = " << statf.f_blocks << std::endl;
std::cout << "statf.f_bavail = " << statf.f_bavail << std::endl;
std::cout << "statf.f_bfree = "<< statf.f_bfree << std::endl;
std::cout << "GB = "<< ((statf.f_bsize * statf.f_blocks) / kBytesInGB)<< std::endl;
return 0;
I am seeing that the result in GB is 465. However checking System Information tells me that I have 500GB
What am I doing wrong? Is this best way to get those numbers?
Note: I am using C++ on Mac OS, can't use Objective-C
Thanks in advance
macos c++11 filesystems
macos c++11 filesystems
edited Nov 10 at 16:55
Tom Harrington
51.5k596126
asked Nov 10 at 11:59
RuLoViC
16512
edited Nov 10 at 16:55
Tom Harrington
51.5k596126
asked Nov 10 at 11:59
RuLoViC
16512
edited Nov 10 at 16:55
Tom Harrington
51.5k596126
edited Nov 10 at 16:55
Tom Harrington
51.5k596126
edited Nov 10 at 16:55
Tom Harrington
51.5k596126
51.5k596126
asked Nov 10 at 11:59
RuLoViC
16512
asked Nov 10 at 11:59
RuLoViC
16512
asked Nov 10 at 11:59
RuLoViC
16512
16512
1
The program gets the file system capacity, not the physical capacity of the HDD.
– eprom
Nov 11 at 15:57
how can I get the physical capacity, then?
– RuLoViC
Nov 11 at 19:16
add a comment |
1
The program gets the file system capacity, not the physical capacity of the HDD.
– eprom
Nov 11 at 15:57
how can I get the physical capacity, then?
– RuLoViC
Nov 11 at 19:16
1
1
The program gets the file system capacity, not the physical capacity of the HDD.
– eprom
Nov 11 at 15:57
The program gets the file system capacity, not the physical capacity of the HDD.
– eprom
Nov 11 at 15:57
how can I get the physical capacity, then?
– RuLoViC
Nov 11 at 19:16
how can I get the physical capacity, then?
– RuLoViC
Nov 11 at 19:16
add a comment |
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1
The program gets the file system capacity, not the physical capacity of the HDD.
– eprom
Nov 11 at 15:57
how can I get the physical capacity, then?
– RuLoViC
Nov 11 at 19:16