Wireshark · Wireshark-dev: Re: [Wireshark-dev] [Wireshark-commits] rev 51169: / /trunk/epan/: app_mem_usage.c

[Evan Huus <eapache@xxxxxxxxx>]

On Tue, Aug 6, 2013 at 2:14 PM, Jakub Zawadzki
<darkjames-ws@xxxxxxxxxxxx> wrote:
> On Tue, Aug 06, 2013 at 10:59:42AM -0700, Guy Harris wrote:
>>
>> On Aug 6, 2013, at 9:38 AM, darkjames@xxxxxxxxxxxxx wrote:
>>
>> > http://anonsvn.wireshark.org/viewvc/viewvc.cgi?view=rev&revision=51169
>> >
>> > User: darkjames
>> > Date: 2013/08/06 09:38 AM
>> >
>> > Log:
>> > app_mem_usage fixes:
>> >
>> > - Add missing feature test macro for pread()
>>
>> Do all versions of the Linux kernel and of glibc have pread()?
>
> Probably, from man:
>
> The  pread()  and  pwrite() system calls were added to Linux in version 2.1.60
> (...) C library support (including emulation using lseek(2) on older
> kernels without the system calls) was added in glibc 2.1
>
> glibc 2.1 was released about 1999

Hmm, we have conflicting man pages.
http://linux.die.net/man/2/pread

>> If not, would an lseek() followed by a read() do just as well?
>
> Sure.
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