daandemeyer / rpms / systemd

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From eacb511fc0d1e3c5857cb041ad162fb78b4381cc Mon Sep 17 00:00:00 2001
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From: Ruixin Bao <rubao@redhat.com>
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Date: Sun, 26 Aug 2018 20:00:03 +0000
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Subject: [PATCH] install: small refactor to combine two function calls into
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 one function
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Combine consecutive function calls of install_info_discover and
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install_info_may_process into one short helper function.
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(cherry picked from commit 1e475a0ab4c46eb07f3df3fb24f5a7c3e1fa20b1)
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Related: #1812972
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---
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 src/shared/install.c | 61 ++++++++++++++++++++++----------------------
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 1 file changed, 30 insertions(+), 31 deletions(-)
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diff --git a/src/shared/install.c b/src/shared/install.c
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index 1d4beaa83b..263b239f10 100644
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--- a/src/shared/install.c
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+++ b/src/shared/install.c
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@@ -1676,6 +1676,25 @@ static int install_info_discover(
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         return r;
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 }
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+static int install_info_discover_and_check(
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+                        UnitFileScope scope,
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+                        InstallContext *c,
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+                        const LookupPaths *paths,
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+                        const char *name,
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+                        SearchFlags flags,
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+                        UnitFileInstallInfo **ret,
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+                        UnitFileChange **changes,
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+                        size_t *n_changes) {
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+
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+        int r;
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+
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+        r = install_info_discover(scope, c, paths, name, flags, ret, changes, n_changes);
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+        if (r < 0)
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+                return r;
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+
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+        return install_info_may_process(ret ? *ret : NULL, paths, changes, n_changes);
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+}
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+
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 static int install_info_symlink_alias(
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                 UnitFileInstallInfo *i,
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                 const LookupPaths *paths,
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@@ -2399,11 +2418,8 @@ int unit_file_add_dependency(
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         if (!config_path)
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                 return -ENXIO;
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-        r = install_info_discover(scope, &c, &paths, target, SEARCH_FOLLOW_CONFIG_SYMLINKS,
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-                                  &target_info, changes, n_changes);
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-        if (r < 0)
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-                return r;
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-        r = install_info_may_process(target_info, &paths, changes, n_changes);
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+        r = install_info_discover_and_check(scope, &c, &paths, target, SEARCH_FOLLOW_CONFIG_SYMLINKS,
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+                                            &target_info, changes, n_changes);
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         if (r < 0)
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                 return r;
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@@ -2412,11 +2428,8 @@ int unit_file_add_dependency(
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         STRV_FOREACH(f, files) {
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                 char ***l;
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-                r = install_info_discover(scope, &c, &paths, *f, SEARCH_FOLLOW_CONFIG_SYMLINKS,
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-                                          &i, changes, n_changes);
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-                if (r < 0)
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-                        return r;
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-                r = install_info_may_process(i, &paths, changes, n_changes);
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+                r = install_info_discover_and_check(scope, &c, &paths, *f, SEARCH_FOLLOW_CONFIG_SYMLINKS,
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+                                                    &i, changes, n_changes);
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                 if (r < 0)
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                         return r;
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@@ -2467,11 +2480,8 @@ int unit_file_enable(
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                 return -ENXIO;
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         STRV_FOREACH(f, files) {
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-                r = install_info_discover(scope, &c, &paths, *f, SEARCH_LOAD|SEARCH_FOLLOW_CONFIG_SYMLINKS,
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-                                          &i, changes, n_changes);
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-                if (r < 0)
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-                        return r;
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-                r = install_info_may_process(i, &paths, changes, n_changes);
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+                r = install_info_discover_and_check(scope, &c, &paths, *f, SEARCH_LOAD|SEARCH_FOLLOW_CONFIG_SYMLINKS,
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+                                                    &i, changes, n_changes);
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                 if (r < 0)
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                         return r;
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@@ -2585,10 +2595,7 @@ int unit_file_set_default(
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         if (r < 0)
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                 return r;
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-        r = install_info_discover(scope, &c, &paths, name, 0, &i, changes, n_changes);
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-        if (r < 0)
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-                return r;
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-        r = install_info_may_process(i, &paths, changes, n_changes);
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+        r = install_info_discover_and_check(scope, &c, &paths, name, 0, &i, changes, n_changes);
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         if (r < 0)
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                 return r;
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@@ -3089,22 +3096,14 @@ static int preset_prepare_one(
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                 if (instance_name_list) {
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                         char **s;
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                         STRV_FOREACH(s, instance_name_list) {
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-                                r = install_info_discover(scope, plus, paths, *s, SEARCH_LOAD|SEARCH_FOLLOW_CONFIG_SYMLINKS,
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-                                                          &i, changes, n_changes);
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-                                if (r < 0)
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-                                        return r;
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-
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-                                r = install_info_may_process(i, paths, changes, n_changes);
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+                                r = install_info_discover_and_check(scope, plus, paths, *s, SEARCH_LOAD|SEARCH_FOLLOW_CONFIG_SYMLINKS,
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+                                                                    &i, changes, n_changes);
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                                 if (r < 0)
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                                         return r;
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                         }
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                 } else {
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-                        r = install_info_discover(scope, plus, paths, name, SEARCH_LOAD|SEARCH_FOLLOW_CONFIG_SYMLINKS,
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-                                                  &i, changes, n_changes);
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-                        if (r < 0)
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-                                return r;
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-
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-                        r = install_info_may_process(i, paths, changes, n_changes);
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+                        r = install_info_discover_and_check(scope, plus, paths, name, SEARCH_LOAD|SEARCH_FOLLOW_CONFIG_SYMLINKS,
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+                                                            &i, changes, n_changes);
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                         if (r < 0)
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                                 return r;
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                 }