unit: add new dependency type RequiresMountsFor=

[elogind.git] / src / core / load-fragment.c

diff --git a/src/core/load-fragment.c b/src/core/load-fragment.c
index 637c82b427d461fd0417831edb7aa3e4b16f0b37..d24919f998fb0fca4af5d5cb942bced68ce0499f 100644 (file)
--- a/src/core/load-fragment.c
+++ b/src/core/load-fragment.c
@@ -6,16 +6,16 @@
   Copyright 2010 Lennart Poettering
 
   systemd is free software; you can redistribute it and/or modify it
-  under the terms of the GNU General Public License as published by
-  the Free Software Foundation; either version 2 of the License, or
+  under the terms of the GNU Lesser General Public License as published by
+  the Free Software Foundation; either version 2.1 of the License, or
   (at your option) any later version.
 
   systemd is distributed in the hope that it will be useful, but
   WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-  General Public License for more details.
+  Lesser General Public License for more details.
 
-  You should have received a copy of the GNU General Public License
+  You should have received a copy of the GNU Lesser General Public License
   along with systemd; If not, see <http://www.gnu.org/licenses/>.
 ***/
 
@@ -2032,6 +2032,35 @@ int config_parse_unit_blkio_bandwidth(const char *filename, unsigned line, const
         return 0;
 }
 
+int config_parse_unit_requires_mounts_for(
+                const char *filename,
+                unsigned line,
+                const char *section,
+                const char *lvalue,
+                int ltype,
+                const char *rvalue,
+                void *data,
+                void *userdata) {
+
+        Unit *u = userdata;
+        int r;
+        bool empty_before;
+
+        assert(filename);
+        assert(lvalue);
+        assert(rvalue);
+        assert(data);
+
+        empty_before = !u->requires_mounts_for;
+
+        r = config_parse_path_strv(filename, line, section, lvalue, ltype, rvalue, data, userdata);
+
+        /* Make it easy to find units with requires_mounts set */
+        if (empty_before && u->requires_mounts_for)
+                LIST_PREPEND(Unit, has_requires_mounts_for, u->manager->has_requires_mounts_for, u);
+
+        return r;
+}
 
 #define FOLLOW_MAX 8
 
@@ -2394,6 +2423,7 @@ void unit_dump_config_items(FILE *f) {
                 { config_parse_socket_bindtodevice,   "NETWORKINTERFACE" },
                 { config_parse_usec,                  "SECONDS" },
                 { config_parse_path_strv,             "PATH [...]" },
+                { config_parse_unit_requires_mounts_for, "PATH [...]" },
                 { config_parse_exec_mount_flags,      "MOUNTFLAG [...]" },
                 { config_parse_unit_string_printf,    "STRING" },
                 { config_parse_timer,                 "TIMER" },