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Implement support for getting kCFURLVolumeAvailableCapacityKey and friends

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This commit is contained in:
Lubos Dolezel 2020-02-28 23:40:03 +01:00
parent 93f7c0f6c8
commit f504dcd155
4 changed files with 48 additions and 0 deletions
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1
CFURLConstants.c
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@ -52,6 +52,7 @@ const CFStringRef kCFURLIsAliasFileKey = CFSTR("NSURLIsAliasFileKey");
const CFStringRef kCFURLVolumeLocalizedFormatDescriptionKey = CFSTR("NSURLVolumeLocalizedFormatDescriptionKey");
const CFStringRef kCFURLVolumeTotalCapacityKey = CFSTR("NSURLVolumeTotalCapacityKey");
const CFStringRef kCFURLVolumeAvailableCapacityKey = CFSTR("NSURLVolumeAvailableCapacityKey");
const CFStringRef kCFURLVolumeAvailableCapacityForImportantUsageKey = CFSTR("NSURLVolumeAvailableCapacityForImportantUsageKey");
const CFStringRef kCFURLVolumeResourceCountKey = CFSTR("NSURLVolumeResourceCountKey");
const CFStringRef kCFURLVolumeSupportsPersistentIDsKey = CFSTR("NSURLVolumeSupportsPersistentIDsKey");
const CFStringRef kCFURLVolumeSupportsSymbolicLinksKey = CFSTR("NSURLVolumeSupportsSymbolicLinksKey");

43
NSURL.m
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@ -15,6 +15,7 @@
#import "CFPriv.h"
#import "NSURLInternal.h"
#import <objc/runtime.h>
#include <sys/statvfs.h>
#include <sys/stat.h>
#define STACK_BUFFER_SIZE 100 // pretty safe bet this will be quite unlikely to use more than this since there are only 94 properties
@ -449,6 +450,48 @@ static CFTypeRef CFURLCreatePropertyForKey(CFURLRef url, CFStringRef key, CFErro
{
// Key for the resource’s object type, returned as a CFString object. See “File Resource Types” for possible values.
}
else if (CFEqual(key, kCFURLVolumeAvailableCapacityKey))
{
UInt8 path[PATH_MAX] = { 0 };
if (CFURLGetFileSystemRepresentation(url, true, path, PATH_MAX))
{
struct statvfs vfs;
if (statvfs(path, &vfs) == 0)
{
long long b = ((UInt64)vfs.f_bavail) * vfs.f_bsize;
value = CFNumberCreate(kCFAllocatorDefault, kCFNumberLongLongType, &b);
}
}
}
else if (CFEqual(key, kCFURLVolumeAvailableCapacityForImportantUsageKey))
{
UInt8 path[PATH_MAX] = { 0 };
if (CFURLGetFileSystemRepresentation(url, true, path, PATH_MAX))
{
struct statvfs vfs;
if (statvfs(path, &vfs) == 0)
{
long long b = ((UInt64)vfs.f_bfree) * vfs.f_bsize;
value = CFNumberCreate(kCFAllocatorDefault, kCFNumberLongLongType, &b);
}
}
}
else if (CFEqual(key, kCFURLVolumeTotalCapacityKey))
{
UInt8 path[PATH_MAX] = { 0 };
if (CFURLGetFileSystemRepresentation(url, true, path, PATH_MAX))
{
struct statvfs vfs;
if (statvfs(path, &vfs) == 0)
{
long long b = ((UInt64)vfs.f_blocks) * vfs.f_bsize;
value = CFNumberCreate(kCFAllocatorDefault, kCFNumberLongLongType, &b);
}
}
}
return value;
}

1
include/CoreFoundation/CFAvailability.h
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@ -86,6 +86,7 @@
#define __NSi_10_11 introduced=10.11
#define __NSi_10_12 introduced=10.12
#define __NSi_10_12_1 introduced=10.12.1
#define __NSi_10_13 introduced=10.13
#define __NSd_2_0 ,deprecated=2.0
#define __NSd_2_1 ,deprecated=2.1

3
include/CoreFoundation/CFURL.h
View File

@ -908,6 +908,9 @@ CF_EXPORT
const CFStringRef kCFURLVolumeAvailableCapacityKey CF_AVAILABLE(10_6, 4_0);
/* Total free space in bytes (Read-only, value type CFNumber) */
CF_EXPORT
const CFStringRef kCFURLVolumeAvailableCapacityForImportantUsageKey CF_AVAILABLE(10_13, 11_0);
CF_EXPORT
const CFStringRef kCFURLVolumeResourceCountKey CF_AVAILABLE(10_6, 4_0);
/* Total number of resources on the volume (Read-only, value type CFNumber) */