[sr-dev] git:master: cfg framework: @cfg_selected.group added

Module: sip-router Branch: master Commit: f9ad9ccf83b9341fa5a063cb3bd844567f3f06e6 URL: http://git.sip-router.org/cgi-bin/gitweb.cgi/sip-router/?a=commit;h=f9ad9cc… Author: Miklos Tirpak &lt;miklos(a)iptel.org&gt; Committer: Miklos Tirpak &lt;miklos(a)iptel.org&gt; Date: Mon Jan 31 12:45:57 2011 +0100 cfg framework: @cfg_selected.group added @cfg_selected.<group_name> returns the selected instance id of the specified group. If no group instance is selected, i.e. the default is used, then empty string is returned. --- cfg/cfg_select.c | 102 +++++++++++++++++++++++++++++++++++++++++++++++------- cfg/cfg_select.h | 3 ++ select_core.h | 2 + 3 files changed, 94 insertions(+), 13 deletions(-) diff --git a/cfg/cfg_select.c b/cfg/cfg_select.c index 68c7e41..cb0a2f1 100644 --- a/cfg/cfg_select.c +++ b/cfg/cfg_select.c @@ -60,14 +60,17 @@ static int cfg_new_select(str *gname, str *vname, void **group_p, void **var_p) if (!sel->gname.s) goto error; memcpy(sel->gname.s, gname->s, gname->len); sel->gname.len = gname->len; + sel->group_p = group_p; - sel->vname.s = (char *)pkg_malloc(sizeof(char)*vname->len); - if (!sel->vname.s) goto error; - memcpy(sel->vname.s, vname->s, vname->len); - sel->vname.len = vname->len; + if (vname) { + sel->vname.s = (char *)pkg_malloc(sizeof(char)*vname->len); + if (!sel->vname.s) goto error; + memcpy(sel->vname.s, vname->s, vname->len); + sel->vname.len = vname->len; + + sel->var_p = var_p; + } - sel->group_p = group_p; - sel->var_p = var_p; sel->next = cfg_non_fixed_selects; cfg_non_fixed_selects = sel; @@ -111,14 +114,23 @@ int cfg_fixup_selects() for (sel=cfg_non_fixed_selects; sel; sel=sel->next) { - if (cfg_lookup_var(&sel->gname, &sel->vname, &group, &var)) { - LOG(L_ERR, "ERROR: cfg_parse_selects(): unknown variable: %.*s.%.*s\n", - sel->gname.len, sel->gname.s, - sel->vname.len, sel->vname.s); - return -1; + if (sel->var_p) { + if (cfg_lookup_var(&sel->gname, &sel->vname, &group, &var)) { + LOG(L_ERR, "ERROR: cfg_parse_selects(): unknown variable: %.*s.%.*s\n", + sel->gname.len, sel->gname.s, + sel->vname.len, sel->vname.s); + return -1; + } + *(sel->group_p) = (void *)group; + *(sel->var_p) = (void *)var; + } else { + if (!(group = cfg_lookup_group(sel->gname.s, sel->gname.len))) { + LOG(L_ERR, "ERROR: cfg_parse_selects(): unknown configuration group: %.*s\n", + sel->gname.len, sel->gname.s); + return -1; + } + *(sel->group_p) = (void *)group; } - *(sel->group_p) = (void *)group; - *(sel->var_p) = (void *)var; } /* the select list is not needed anymore */ cfg_free_selects(); @@ -360,3 +372,67 @@ int read_cfg_var_str(struct cfg_read_handle *read_handle, str *val) *val = *(str *)(v2); return 0; } + +/* return the selected group instance */ +int cfg_selected_inst(str *res, select_t *s, struct sip_msg *msg) +{ + cfg_group_t *group; + cfg_group_inst_t *inst; + + if (msg == NULL) { + /* fixup call */ + + /* one parameter is mandatory: group name */ + if (s->n != 2) { + LOG(L_ERR, "ERROR: selected_inst(): One parameter is expected\n"); + return -1; + } + + if (s->params[1].type != SEL_PARAM_STR) { + LOG(L_ERR, "ERROR: selected_inst(): string parameter is expected\n"); + return -1; + } + + /* look-up the group and the variable */ + if (!(group = cfg_lookup_group(s->params[1].v.s.s, s->params[1].v.s.len))) { + if (cfg_shmized) { + LOG(L_ERR, "ERROR: selected_inst(): unknown configuration group: %.*s\n", + s->params[1].v.s.len, s->params[1].v.s.s); + return -1; + } + /* The group was not found, add it to the non-fixed select list. + * So we act as if the fixup was successful, and we retry it later */ + if (cfg_new_select(&s->params[1].v.s, NULL, + &s->params[1].v.p, NULL)) + return -1; + + LOG(L_DBG, "DEBUG: selected_inst(): select fixup is postponed: %.*s\n", + s->params[1].v.s.len, s->params[1].v.s.s); + + s->params[1].type = SEL_PARAM_PTR; + s->params[1].v.p = NULL; + + return 0; + } + + s->params[1].type = SEL_PARAM_PTR; + s->params[1].v.p = (void *)group; + + return 1; + } + + group = (cfg_group_t *)s->params[1].v.p; + if (!group) return -1; + + /* Get the current group instance from the group handle. */ + inst = CFG_HANDLE_TO_GINST(*(group->handle)); + + if (inst) { + res->s = int2str(inst->id, &res->len); + } else { + res->s = ""; + res->len = 0; + } + return 0; +} + diff --git a/cfg/cfg_select.h b/cfg/cfg_select.h index b7d454e..743b707 100644 --- a/cfg/cfg_select.h +++ b/cfg/cfg_select.h @@ -61,4 +61,7 @@ unsigned int read_cfg_var(struct cfg_read_handle *read_handle, void **val); int read_cfg_var_int(struct cfg_read_handle *read_handle, int *val); int read_cfg_var_str(struct cfg_read_handle *read_handle, str *val); +/* return the selected group instance */ +int cfg_selected_inst(str *res, select_t *s, struct sip_msg *msg); + #endif /* _CFG_SELECT_H */ diff --git a/select_core.h b/select_core.h index d28e0e6..8cec775 100644 --- a/select_core.h +++ b/select_core.h @@ -215,6 +215,7 @@ SELECT_F(select_identity) SELECT_F(select_identity_info) SELECT_F(select_cfg_var) +SELECT_F(cfg_selected_inst) static select_row_t select_core[] = { { NULL, SEL_PARAM_STR, STR_STATIC_INIT("ruri"), select_ruri, 0}, /* not the same as request.uri because it is involved by new_uri */ @@ -410,6 +411,7 @@ static select_row_t select_core[] = { { NULL, SEL_PARAM_STR, STR_STATIC_INIT("identity_info"), select_identity_info, 0}, { NULL, SEL_PARAM_STR, STR_STATIC_INIT("cfg_get"), select_cfg_var, CONSUME_ALL | FIXUP_CALL }, + { NULL, SEL_PARAM_STR, STR_STATIC_INIT("cfg_selected"), cfg_selected_inst, CONSUME_NEXT_STR | FIXUP_CALL }, { NULL, SEL_PARAM_INT, STR_NULL, NULL, 0} };