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From: | Doug Kaufman <dkaufman AT rahul DOT net> |
Newsgroups: | comp.os.msdos.djgpp |
Subject: | Re: Problem with UNRAR |
Date: | Thu, 6 Jan 2005 05:18:57 +0000 (UTC) |
Organization: | a2i network |
Lines: | 40 |
Message-ID: | <criho1$iit$1@blue.rahul.net> |
References: | <Pine DOT GSO DOT 4 DOT 31L2A DOT 0501052037160 DOT 28985-100000 AT mail> <crhjls$v2b$1 AT blue DOT rahul DOT net> <01c4f3ab$Blat.v2.2.2$28b62780 AT zahav DOT net DOT il> |
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NNTP-Posting-Date: | Thu, 6 Jan 2005 05:18:57 +0000 (UTC) |
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To: | djgpp AT delorie DOT com |
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"Eli Zaretskii" <eliz AT gnu DOT org> writes: >> From: Doug Kaufman <dkaufman AT rahul DOT net> >> Date: Wed, 5 Jan 2005 20:45:48 +0000 (UTC) >> >> +#ifdef __DJGPP__ >> + { >> + __dpmi_regs regs; >> + memset(®s,0,sizeof(regs)); >> + regs.h.ah=0x36; >> + regs.h.dl=Drive; >> + __dpmi_int (0x21, ®s); >> + if (regs.x.ax==0xffff) >> + return(1457664); >> + Int64 FreeSize=regs.x.ax*regs.x.cx; >> + FreeSize=FreeSize*regs.x.bx; >> + return(FreeSize); >> + } >> +#else >Why work so hard when DJGPP has the `statfs' function which will return >the disk free space? I just modified the author's code to use __dpmi_int instead of the _int86 in the original code. I didn't think about more efficient ways to do it. Thanks for the suggestion. I presume that you are talking about doing something like: struct statfs fs; statfs(Drive, &fs); FreeSize=fs.f_bfree*fs.f_bsize; return(FreeSize); I am not a programmer, so I am usually happy just to get something to work for me when I try to port a program. I'll try to remember that we have statfs if the need arises with other programs. Doug -- Doug Kaufman Internet: dkaufman AT rahul DOT net
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