On Aug 11, 2009, at 2:53 PM, Mark Richards wrote:
> Environment:
> Linux axis 2.6.19 #9 PREEMPT Mon Apr 6 15:44:03 EDT 2009 cris
> unknown
>
> Sqlite:
> Sqlite: sqlite-3.6.14
> ./configure --host=cris-axis-linux-gnu
> --prefix=/AEMDEV/83+/devboard-R2_10/target/cris-axis-linux-gnu
> --enable-static=yes --enable-shared=yes --disable-dynamic-extensions
>
> Application:
> My application runs against the shared library built as above.
>
> Code in my application fails after calling sqlite3_open().
>
> This synopsis is of a function designed to spawn a shell, execute a
> command, and read back the result via a pipe of stdout. It works
> fine,
> until sqlite3_open() is called anywhere PRIOR.
>
> prior sqlite3_open() call:
> sqlite3 *dbf;
> sqlite3_open("/path/to/my.db", &dbf);
>
>
> fflush(stdout);
> pipe(fd);
> pid = fork();
> if (pid == 0)
> {
> dup2(fd[1], STDOUT_FILENO);
> dup2(fd[1], STDERR_FILENO);
> close(fd[0]);
Have you tried called sqlite3_close() here to see if that helps? All
of SQLite's file descriptors are FD_CLOEXEC, but who knows....
> execl("/bin/sh", "sh", "-c", "echo 123", 0);
> }
> if (-1 == (flags = fcntl(fd[0], F_GETFL, 0)))
> flags = 0;
> fcntl(fd[0], F_SETFL, flags | O_NONBLOCK);
>
> .. within a loop:
>
> got=read(fd[0], buf, sizeof(buf));
> if (got>-1)
> {
> snprintf(cValue,4,"%s",buf);
> break;
> }
> // got ==-1
D. Richard Hipp
d...@hwaci.com
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