diff options
Diffstat (limited to 'load-fragment.c')
| -rw-r--r-- | load-fragment.c | 167 |
1 files changed, 90 insertions, 77 deletions
diff --git a/load-fragment.c b/load-fragment.c index 2eb8279f40..c0972d04fb 100644 --- a/load-fragment.c +++ b/load-fragment.c @@ -95,36 +95,15 @@ static int config_parse_names( FOREACH_WORD(w, l, rvalue, state) { char *t; int r; - Unit *other; if (!(t = strndup(w, l))) return -ENOMEM; - other = manager_get_unit(u->meta.manager, t); - - if (other) { - - if (other != u) { - - if (other->meta.load_state != UNIT_STUB) { - free(t); - return -EEXIST; - } - - if ((r = unit_merge(u, other)) < 0) { - free(t); - return r; - } - } - - } else { - if ((r = unit_add_name(u, t)) < 0) { - free(t); - return r; - } - } - + r = unit_merge_by_name(u, t); free(t); + + if (r < 0) + return r; } return 0; @@ -1070,7 +1049,48 @@ static int open_follow(char **filename, FILE **_f, Set *names, char **_id) { return 0; } -static int load_from_path(Unit *u, const char *path) { +static int merge_by_names(Unit **u, Set *names, const char *id) { + char *k; + int r; + + assert(u); + assert(*u); + assert(names); + + /* Let's try to add in all symlink names we found */ + while ((k = set_steal_first(names))) { + + /* First try to merge in the other name into our + * unit */ + if ((r = unit_merge_by_name(*u, k)) < 0) { + Unit *other; + + /* Hmm, we couldn't merge the other unit into + * ours? Then let's try it the other way + * round */ + + other = manager_get_unit((*u)->meta.manager, k); + free(k); + + if (other) + if ((r = unit_merge(other, *u)) >= 0) { + *u = other; + return merge_by_names(u, names, NULL); + } + + return r; + } + + if (id == k) + unit_choose_id(*u, id); + + free(k); + } + + return 0; +} + +static int load_from_path(Unit *u, const char *path, UnitLoadState *new_state) { static const char* const section_table[_UNIT_TYPE_MAX] = { [UNIT_SERVICE] = "Service", @@ -1184,8 +1204,12 @@ static int load_from_path(Unit *u, const char *path) { char *k; int r; Set *symlink_names; - FILE *f; - char *filename = NULL, *id; + FILE *f = NULL; + char *filename = NULL, *id = NULL; + Unit *merged; + + assert(u); + assert(new_state); sections[0] = "Meta"; sections[1] = section_table[u->meta.type]; @@ -1243,90 +1267,79 @@ static int load_from_path(Unit *u, const char *path) { } if (!filename) { - r = 0; /* returning 0 means: no suitable config file found */ + r = 0; goto finish; } - /* Now, parse the file contents */ - r = config_parse(filename, f, sections, items, u); - if (r < 0) + merged = u; + if ((r = merge_by_names(&merged, symlink_names, id)) < 0) goto finish; - /* Let's try to add in all symlink names we found */ - while ((k = set_steal_first(symlink_names))) { - if ((r = unit_add_name(u, k)) < 0) - goto finish; - - - if (id == k) - unit_choose_id(u, id); - free(k); + if (merged != u) { + *new_state = UNIT_MERGED; + r = 0; + goto finish; } + /* Now, parse the file contents */ + if ((r = config_parse(filename, f, sections, items, u)) < 0) + goto finish; free(u->meta.fragment_path); u->meta.fragment_path = filename; filename = NULL; - r = 1; /* returning 1 means: suitable config file found and loaded */ + *new_state = UNIT_LOADED; + r = 0; finish: while ((k = set_steal_first(symlink_names))) free(k); + set_free(symlink_names); free(filename); + if (f) + fclose(f); + return r; } -int unit_load_fragment(Unit *u) { - int r = 0; +int unit_load_fragment(Unit *u, UnitLoadState *new_state) { + int r; assert(u); - assert(u->meta.load_state == UNIT_STUB); + assert(new_state); + assert(*new_state == UNIT_STUB); + + if (u->meta.fragment_path) { + + if ((r = load_from_path(u, u->meta.fragment_path, new_state)) < 0) + return r; - if (u->meta.fragment_path) - r = load_from_path(u, u->meta.fragment_path); - else { + } else { Iterator i; const char *t; /* Try to find the unit under its id */ if ((t = unit_id(u))) - r = load_from_path(u, t); + if ((r = load_from_path(u, t, new_state)) < 0) + return r; /* Try to find an alias we can load this with */ - if (r == 0) - SET_FOREACH(t, u->meta.names, i) - if ((r = load_from_path(u, t)) != 0) - break; - } + if (*new_state == UNIT_STUB) + SET_FOREACH(t, u->meta.names, i) { - if (r >= 0) { - ExecContext *c; + if (unit_id(u) == t) + continue; - if (u->meta.type == UNIT_SOCKET) - c = &u->socket.exec_context; - else if (u->meta.type == UNIT_SERVICE) - c = &u->service.exec_context; - else - c = NULL; - - if (c && - (c->output == EXEC_OUTPUT_KERNEL || c->output == EXEC_OUTPUT_SYSLOG)) { - int k; - - /* If syslog or kernel logging is requested, make sure - * our own logging daemon is run first. */ - - if ((k = unit_add_dependency_by_name(u, UNIT_AFTER, SPECIAL_LOGGER_SOCKET)) < 0) - return k; + if ((r = load_from_path(u, t, new_state)) < 0) + return r; - if (u->meta.manager->running_as != MANAGER_SESSION) - if ((k = unit_add_dependency_by_name(u, UNIT_REQUIRES, SPECIAL_LOGGER_SOCKET)) < 0) - return k; - } + if (*new_state != UNIT_STUB) + break; + } } - return r; + return 0; } |