On Fri, Jul 12, 2019 at 12:23:49PM -0400, Stefan Berger wrote:
Add a test case to commandtest.c to test the transfer of data to a process who received the read-end of pipes' file descriptors. Transfer large (128 kb) byte streams.
Extend the commandhelper.c with support for --readfd <fd> command line parameter and convert the data receive loop to use poll and receive data on multiple file descriptors (up to 3) and read data into distinct buffers that we grow while adding more (string) data.
Signed-off-by: Stefan Berger <stefanb@linux.ibm.com> --- tests/commandhelper.c | 70 +++++++++++++++++++++++--- tests/commandtest.c | 113 ++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 177 insertions(+), 6 deletions(-)
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
@@ -62,13 +63,27 @@ int main(int argc, char **argv) { char *cwd; FILE *log = fopen(abs_builddir "/commandhelper.log", "w"); int ret = EXIT_FAILURE; + int readfds[3] = { STDIN_FILENO, }; + int numreadfds = 1; + struct pollfd fds[3]; + int numpollfds = 0;
s/int/size_t/ for array sizes
+ char *buffers[3] = {NULL, NULL, NULL}; + size_t buflen[3] = {0, 0, 0}; + char c;
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Regards, Daniel -- |: https://berrange.com -o- https://www.flickr.com/photos/dberrange :| |: https://libvirt.org -o- https://fstop138.berrange.com :| |: https://entangle-photo.org -o- https://www.instagram.com/dberrange :|