Hi all. I am trying to write a little program where I extract some
data out of a game in real time. The game writes some info to a log
file, and I can access this in real time. The problem is that the log
name is (partially) new every time so I can't just open any file.
Currently I have to first start the log, then copy the log name to my c
++ source file (fopen(logname) ), then compile the source file and
after that run the extracting program, at which time the log has grown
a substantial amount.
What I want to do is just start the log and then start the extracting
program and it'll find the new logfile right away.
Good to know:
I can set the first part of the name manually. The game adds date and
time to it so the logfile name is e.g.:
mylogname_07020 8_180914.log
I can see two ways of solving this: Either search for the newest files
in the folder the log is created in, or open a file that starts with
"mylogname" .
Anyone have a solution to this?
current code:
FILE *fileP; //fileP = file pointer
fileP = fopen("mylognam e_070208_172648 .log","r"); //bad code have to
copy paste every time
5  1775  tc*******@hotma il.com wrote:
Hi all. I am trying to write a little program where I extract some
data out of a game in real time. The game writes some info to a log
file, and I can access this in real time. The problem is that the log
name is (partially) new every time so I can't just open any file.
Currently I have to first start the log, then copy the log name to my c
++ source file (fopen(logname) ), then compile the source file and
after that run the extracting program, at which time the log has grown
a substantial amount.
What I want to do is just start the log and then start the extracting
program and it'll find the new logfile right away.
Good to know:
I can set the first part of the name manually. The game adds date and
time to it so the logfile name is e.g.:
mylogname_07020 8_180914.log
I can see two ways of solving this: Either search for the newest files
in the folder the log is created in, or open a file that starts with
"mylogname" .
Anyone have a solution to this?
There is no solution in standard C++. The closest you can get is by using
the boost filesystem library.
current code:
FILE *fileP; //fileP = file pointer
fileP = fopen("mylognam e_070208_172648 .log","r"); //bad code have to
copy paste every time
One improvement would be to take the name as a command line argument. That
way, at least you don't need to recompile your program each time the file
name changes. tc*******@hotma il.com wrote:
Hi all. I am trying to write a little program where I extract some
data out of a game in real time. The game writes some info to a log
file, and I can access this in real time. The problem is that the log
name is (partially) new every time so I can't just open any file.
Currently I have to first start the log, then copy the log name to my c
++ source file (fopen(logname) ), then compile the source file and
after that run the extracting program, at which time the log has grown
a substantial amount.
What I want to do is just start the log and then start the extracting
program and it'll find the new logfile right away.
Good to know:
I can set the first part of the name manually. The game adds date and
time to it so the logfile name is e.g.:
mylogname_07020 8_180914.log
I can see two ways of solving this: Either search for the newest files
in the folder the log is created in, or open a file that starts with
"mylogname" .
Anyone have a solution to this?
current code:
FILE *fileP; //fileP = file pointer
fileP = fopen("mylognam e_070208_172648 .log","r"); //bad code have to
copy paste every time
Maybe something in the Boost Filesystem library can help, but I haven't
had to use it yet: http://www.boost.org/libs/filesystem/doc/index.htm
--
Marcus Kwok
Replace 'invalid' with 'net' to reply
I just had an idea... Although I don't know the exact filename I do
know the length of the filename. Anyway I can use this to make it
easier? (I'm thinking if I can list att files in a folder and make
sure this is the only file of specific length I can open it with a
simple if command.)
The boost filesystem library does not seem to have the desired command.
<tc*******@hotm ail.comwrote in message
news:11******** **************@ v45g2000cwv.goo glegroups.com.. .
Hi all. I am trying to write a little program where I extract some
data out of a game in real time. The game writes some info to a log
file, and I can access this in real time. The problem is that the log
name is (partially) new every time so I can't just open any file.
Currently I have to first start the log, then copy the log name to my c
++ source file (fopen(logname) ), then compile the source file and
after that run the extracting program, at which time the log has grown
a substantial amount.
What I want to do is just start the log and then start the extracting
program and it'll find the new logfile right away.
Good to know:
I can set the first part of the name manually. The game adds date and
time to it so the logfile name is e.g.:
mylogname_07020 8_180914.log
I can see two ways of solving this: Either search for the newest files
in the folder the log is created in, or open a file that starts with
"mylogname" .
Anyone have a solution to this?
current code:
FILE *fileP; //fileP = file pointer
fileP = fopen("mylognam e_070208_172648 .log","r"); //bad code have to
copy paste every time
You need something to get a list of files in the directory. Either use
Boost or something from your own OS. For windows look at findfirst() and
findnext() (_findfirst() and _findnext()). Not sure for *nix. This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics | |
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