From the application that I'm developing, I have a need to call extern
application (16-bit DOS program). That application can receive input data
from file specified in command line. Similar, output data could be written
in file also specified in command line. From my application I'm creating
input file, call the program, then read output file. Since I need very
intensive communication (many calls of external application during run
time), multiple file creation on hard disk and their reading dramatically
decreases performance of my application. Smarter scheduling could maybe
improve performance, but not enough.
Changes in extern application could not be done, because it's a freeware
program written long time ago, and I couldn't get source for it.
I'm wondering is there a way to use RAM instead of hard disk for this
communication. I would like to create some kind of RAMdisk partition
run-time (without restarting whole system, please) on which I would create
intermediate 'files'.
Does anybody have experience with this issue? Is maybe any commercial
solution available?
Any help will be appreciated.
Oliver
2  1870 
On 28 Oct 2003 23:04:21 -0800, vo***@bigfoot.c om (Oliver) wrote in
comp.lang.c++: From the application that I'm developing, I have a need to call extern
application (16-bit DOS program). That application can receive input data
from file specified in command line. Similar, output data could be written
in file also specified in command line. From my application I'm creating
input file, call the program, then read output file. Since I need very
intensive communication (many calls of external application during run
time), multiple file creation on hard disk and their reading dramatically
decreases performance of my application. Smarter scheduling could maybe
improve performance, but not enough.
Changes in extern application could not be done, because it's a freeware
program written long time ago, and I couldn't get source for it.
I'm wondering is there a way to use RAM instead of hard disk for this
communication. I would like to create some kind of RAMdisk partition
run-time (without restarting whole system, please) on which I would create
intermediate 'files'.
Does anybody have experience with this issue? Is maybe any commercial
solution available?
Any help will be appreciated.
Oliver
You need to ask about RAM disks for MS-DOS in an MS-DOS programming
group, like news:comp.os.ms dos.programmer. The standard C++ language,
the topic of this group, deals with files only in terms of abstract
streams, either C FILE *streams or C++ iostreams. The language itself
does not know or care about the association of a stream with any sort
of actual device, nor does it provide any method for doing this.
--
Jack Klein
Home: http://JK-Technology.Com
FAQs for
comp.lang.c http://www.eskimo.com/~scs/C-faq/top.html
comp.lang.c++ http://www.parashift.com/c++-faq-lite/
alt.comp.lang.l earn.c-c++ ftp://snurse-l.org/pub/acllc-c++/faq
Yes, I realize now that was gone off-topic, so I apologize to all.
I sent my question to microsoft.publi c.win2000.file_ system newsgroup,
so let's hope that address is correct this time.
I apologize once more for flooding this group.
Greetings,
Oliver
Jack Klein <ja*******@spam cop.net> wrote in message news:<k3******* *************** **********@4ax. com>... On 28 Oct 2003 23:04:21 -0800, vo***@bigfoot.c om (Oliver) wrote in
comp.lang.c++:
You need to ask about RAM disks for MS-DOS in an MS-DOS programming
group, like news:comp.os.ms dos.programmer. The standard C++ language,
the topic of this group, deals with files only in terms of abstract
streams, either C FILE *streams or C++ iostreams. The language itself
does not know or care about the association of a stream with any sort
of actual device, nor does it provide any method for doing this. This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics | |
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305-541-1122
--
MySQL General Mailing List
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