struct subprocess * subprocess_create (struct subprocess_manager *sm) { int fds[2]; int saved_errno; struct subprocess *p = xzmalloc (sizeof (*p)); memset (p, 0, sizeof (*p)); p->childfd = -1; p->parentfd = -1; fda_zero (p->child_fda); p->sm = sm; if (!(p->zhash = zhash_new ()) || hooks_table_init (p) < 0) { errno = ENOMEM; goto error; } p->pid = (pid_t) -1; p->refcount = 1; if (socketpair (PF_LOCAL, SOCK_STREAM | SOCK_CLOEXEC, 0, fds) < 0) goto error; p->childfd = fds[0]; p->parentfd = fds[1]; p->started = 0; p->running = 0; p->exited = 0; p->completed = 0; if (!(p->zio_in = zio_pipe_writer_create ("stdin", (void *) p))) goto error; if (!(p->zio_out = zio_pipe_reader_create ("stdout", NULL, (void *) p))) goto error; if (!(p->zio_err = zio_pipe_reader_create ("stderr", NULL, (void *) p))) goto error; zio_set_send_cb (p->zio_out, output_handler); zio_set_send_cb (p->zio_err, output_handler); if (zlist_append (sm->processes, (void *)p) < 0) { errno = ENOMEM; goto error; } if (sm->reactor) { zio_reactor_attach (p->zio_in, sm->reactor); zio_reactor_attach (p->zio_err, sm->reactor); zio_reactor_attach (p->zio_out, sm->reactor); } return (p); error: saved_errno = errno; subprocess_destroy (p); errno = saved_errno; return (NULL); }
int main (int argc, char **argv) { zio_t *zio; int init_fds; const char *name; struct counts c; int fd; flux_reactor_t *r; flux_watcher_t *w; memset (&c, 0, sizeof (c)); plan (NO_PLAN); test_encode (); ok ((r = flux_reactor_create (0)) != NULL, "flux reactor created"); init_fds = fdcount (); diag ("initial fd count: %d", init_fds); /* simple reader tests */ ok ((zio = zio_pipe_reader_create ("test1", &c)) != NULL, "reader: zio_pipe_reader_create works"); ok ((name = zio_name (zio)) != NULL && !strcmp (name, "test1"), "reader: zio_name returns correct name"); ok (zio_set_close_cb (zio, close_reader) == 0, "reader: zio_set_close_cb works"); ok (zio_set_send_cb (zio, send_reader) == 0, "reader: zio_set_send_cb works"); ok (zio_reactor_attach (zio, r) == 0, "reader: zio_reactor_attach works"); ok ((fd = zio_dst_fd (zio)) >= 0, "reader: zio_dst_fd returned valid file descriptor"); ok (write (fd, "narf!", 5) == 5, "reader: wrote narf! to reader pipe"); ok (zio_close_dst_fd (zio) == 0, "reader: zio_close_dst_fd succeeded"); ok (flux_reactor_run (r, 0) == 0, "reader: reactor completed successfully"); ok (c.send_reader == 1, "reader: send function called once for EOF + incomplete line"); errno = 0; zio_destroy (zio); ok (init_fds == fdcount (), "reader: zio_destroy leaks no file descriptors"); /* simple writer tests */ ok ((zio = zio_pipe_writer_create ("test2", &c)) != NULL, "writer: zio_pipe_writer_create works"); ok ((name = zio_name (zio)) != NULL && !strcmp (name, "test2"), "writer: zio_name returns correct name"); ok (zio_set_close_cb (zio, close_writer) == 0, "writer: zio_set_close_cb works"); ok ((fd = zio_src_fd (zio)) >= 0, "writer: zio_src_fd returned valid file descriptor"); w = flux_fd_watcher_create (r, fd, FLUX_POLLIN, fd_read, &c); ok (w != NULL, "writer: created fd watcher"); flux_watcher_start (w); ok (zio_write (zio, "narf!", 5) == 5, "writer: zio_write narf! works"); ok (zio_write_eof (zio) == 0, "writer: zio_write_eof works"); ok (flux_reactor_run (r, 0) == 0, "writer: reactor completed successfully"); ok (c.fd_read_errors == 0 && c.fd_read_data == 5 && c.fd_read_eof == 1, "writer: read narf + EOF on read end of pipe"); ok (c.close_writer == 1, "writer: close callback invoked"); zio_destroy (zio); ok (init_fds == fdcount (), "writer: zio_destroy leaks no file descriptors"); flux_watcher_destroy (w); flux_reactor_destroy (r); done_testing (); }
int zio_flux_attach (zio_t *zio, flux_t *h) { return zio_reactor_attach (zio, flux_get_reactor (h)); }