void VDI_CloseFd(struct vbc **vbp) { struct backend *bp; struct vbc *vc; AN(vbp); vc = *vbp; *vbp = NULL; CHECK_OBJ_NOTNULL(vc, VBC_MAGIC); CHECK_OBJ_NOTNULL(vc->backend, BACKEND_MAGIC); assert(vc->fd >= 0); bp = vc->backend; VSLb(vc->vsl, SLT_BackendClose, "%s", bp->display_name); /* * Checkpoint log to flush all info related to this connection * before the OS reuses the FD */ VSL_Flush(vc->vsl, 0); vc->vsl = NULL; VTCP_close(&vc->fd); VBE_DropRefConn(bp); vc->backend = NULL; VBE_ReleaseConn(vc); }
void VBE_ClosedFd(struct sess *sp) { struct backend *bp; CHECK_OBJ_NOTNULL(sp->vbe, VBE_CONN_MAGIC); CHECK_OBJ_NOTNULL(sp->vbe->backend, BACKEND_MAGIC); assert(sp->vbe->fd >= 0); bp = sp->vbe->backend; WSL(sp->wrk, SLT_BackendClose, sp->vbe->fd, "%s", bp->vcl_name); TCP_close(&sp->vbe->fd); VBE_DropRefConn(bp); sp->vbe->backend = NULL; VBE_ReleaseConn(sp->vbe); sp->vbe = NULL; }
void VBE_CloseFd(struct vbc **vbp, const struct acct_bereq *acct_bereq) { struct backend *bp; struct vbc *vc; AN(vbp); vc = *vbp; *vbp = NULL; CHECK_OBJ_NOTNULL(vc, VBC_MAGIC); CHECK_OBJ_NOTNULL(vc->backend, BACKEND_MAGIC); assert(vc->fd >= 0); bp = vc->backend; VSLb(vc->vsl, SLT_BackendClose, "%d %s", vc->fd, bp->display_name); vc->vsl = NULL; VTCP_close(&vc->fd); VBE_DropRefConn(bp, acct_bereq); vc->backend = NULL; VBE_ReleaseConn(vc); }
static struct vbc * vbe_GetVbe(struct busyobj *bo, struct vdi_simple *vs) { struct vbc *vc; struct backend *bp; CHECK_OBJ_NOTNULL(bo, BUSYOBJ_MAGIC); CHECK_OBJ_NOTNULL(vs, VDI_SIMPLE_MAGIC); bp = vs->backend; CHECK_OBJ_NOTNULL(bp, BACKEND_MAGIC); /* first look for vbc's we can recycle */ while (1) { Lck_Lock(&bp->mtx); vc = VTAILQ_FIRST(&bp->connlist); if (vc != NULL) { bp->refcount++; assert(vc->backend == bp); assert(vc->fd >= 0); AN(vc->addr); VTAILQ_REMOVE(&bp->connlist, vc, list); } Lck_Unlock(&bp->mtx); if (vc == NULL) break; if (vbe_CheckFd(vc->fd)) { /* XXX locking of stats */ VSC_C_main->backend_reuse += 1; VSLb(bo->vsl, SLT_Backend, "%d %s %s", vc->fd, bo->director->vcl_name, bp->display_name); vc->vdis = vs; vc->recycled = 1; return (vc); } VSC_C_main->backend_toolate++; VSLb(bo->vsl, SLT_BackendClose, "%d %s toolate", vc->fd, bp->display_name); /* Checkpoint log to flush all info related to this connection before the OS reuses the FD */ VSL_Flush(bo->vsl, 0); VTCP_close(&vc->fd); VBE_DropRefConn(bp); vc->backend = NULL; VBE_ReleaseConn(vc); } if (!VBE_Healthy(bp, NULL)) { VSC_C_main->backend_unhealthy++; return (NULL); } if (vs->vrt->max_connections > 0 && bp->n_conn >= vs->vrt->max_connections) { VSC_C_main->backend_busy++; return (NULL); } vc = vbe_NewConn(); assert(vc->fd == -1); AZ(vc->backend); bes_conn_try(bo, vc, vs); if (vc->fd < 0) { VBE_ReleaseConn(vc); VSC_C_main->backend_fail++; return (NULL); } vc->backend = bp; VSC_C_main->backend_conn++; VSLb(bo->vsl, SLT_Backend, "%d %s %s", vc->fd, bo->director->vcl_name, bp->display_name); vc->vdis = vs; return (vc); }