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On 14/09/2023 06:23, The Natural Philosopher wrote:
> I don`t expect people to know the answer, but I could use some help in
> puzzling out where to look.
>
> One possibility is that it is opening and reading a file at the precise
> time another process is writing it...in both cases the read and write
> operations are atomic and done with C code.
>
> READ
> ====
> fp=fopen(fullname, "r");
> len=fread(filbuf,1,255,fp); // read entire file
Elsewhere in this thread it is suggested checking fp!=nul.
Not knowing what the actual program is doing might I suggest also
closing fp after it has been read.
>
> WRITE
> =====
> fp=fopen(filename, "w");
> if (fp)
> {
> fprintf(fp,"%s%s
",filedata,timestamp);
> fclose(fp);
> }
>
--
Nev
It causes me a great deal of regret and remorse
that so many people are unable to understand what I write.
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