[Xen-devel] [PATCH v4 2/7] xl: improve main_tmem_* return codes

[Paulina Szubarczyk <paulinaszubarczyk@xxxxxxxxx>]

Functions libxl_tmem_freeze(), libxl_tmem_thaw(), libxl_tmem_set() and
libxl_tmem_shared_auth() located in libxl.c file return
ERROR_FAIL/ERROR_INVAL or internal error codes from libxc library
improve main_tmem_* return codes by returning EXIT_{SUCCESS/FAILURE}
accordingly to return codes of those functions.

Signed-off-by: Paulina Szubarczyk <paulinaszubarczyk@xxxxxxxxx>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>
Reviewed-by: Dario Faggioli <dario.faggioli@xxxxxxxxxx>
Acked-by: Roger Pau Monné <roger.pau@xxxxxxxxxx>
Acked-by: Wei Liu <wei.liu2@xxxxxxxxxx>
---
 tools/libxl/xl_cmdimpl.c | 51 ++++++++++++++++++++++++++++--------------------
 1 file changed, 30 insertions(+), 21 deletions(-)

diff --git a/tools/libxl/xl_cmdimpl.c b/tools/libxl/xl_cmdimpl.c
index 0e5826b..aedf613 100644
--- a/tools/libxl/xl_cmdimpl.c
+++ b/tools/libxl/xl_cmdimpl.c
@@ -7821,11 +7821,11 @@ int main_tmem_list(int argc, char **argv)
 
     buf = libxl_tmem_list(ctx, domid, use_long);
     if (buf == NULL)
-        return -1;
+        return EXIT_FAILURE;
 
     printf("%s\n", buf);
     free(buf);
-    return 0;
+    return EXIT_SUCCESS;
 }
 
 int main_tmem_freeze(int argc, char **argv)
@@ -7845,7 +7845,7 @@ int main_tmem_freeze(int argc, char **argv)
     if (!dom && all == 0) {
         fprintf(stderr, "You must specify -a or a domain id.\n\n");
         help("tmem-freeze");
-        return 1;
+        return EXIT_FAILURE;
     }
 
     if (all)
@@ -7853,8 +7853,10 @@ int main_tmem_freeze(int argc, char **argv)
     else
         domid = find_domain(dom);
 
-    libxl_tmem_freeze(ctx, domid);
-    return 0;
+    if (libxl_tmem_freeze(ctx, domid) < 0)
+        return EXIT_FAILURE;
+
+    return EXIT_SUCCESS;
 }
 
 int main_tmem_thaw(int argc, char **argv)
@@ -7874,7 +7876,7 @@ int main_tmem_thaw(int argc, char **argv)
     if (!dom && all == 0) {
         fprintf(stderr, "You must specify -a or a domain id.\n\n");
         help("tmem-thaw");
-        return 1;
+        return EXIT_FAILURE;
     }
 
     if (all)
@@ -7882,8 +7884,10 @@ int main_tmem_thaw(int argc, char **argv)
     else
         domid = find_domain(dom);
 
-    libxl_tmem_thaw(ctx, domid);
-    return 0;
+    if (libxl_tmem_thaw(ctx, domid) < 0)
+        return EXIT_FAILURE;
+
+    return EXIT_SUCCESS;
 }
 
 int main_tmem_set(int argc, char **argv)
@@ -7894,6 +7898,7 @@ int main_tmem_set(int argc, char **argv)
     int opt_w = 0, opt_c = 0, opt_p = 0;
     int all = 0;
     int opt;
+    int rc = 0;
 
     SWITCH_FOREACH_OPT(opt, "aw:c:p:", NULL, "tmem-set", 0) {
     case 'a':
@@ -7917,7 +7922,7 @@ int main_tmem_set(int argc, char **argv)
     if (!dom && all == 0) {
         fprintf(stderr, "You must specify -a or a domain id.\n\n");
         help("tmem-set");
-        return 1;
+        return EXIT_FAILURE;
     }
 
     if (all)
@@ -7928,17 +7933,20 @@ int main_tmem_set(int argc, char **argv)
     if (!opt_w && !opt_c && !opt_p) {
         fprintf(stderr, "No set value specified.\n\n");
         help("tmem-set");
-        return 1;
+        return EXIT_FAILURE;
     }
 
     if (opt_w)
-        libxl_tmem_set(ctx, domid, "weight", weight);
+        rc = libxl_tmem_set(ctx, domid, "weight", weight);
     if (opt_c)
-        libxl_tmem_set(ctx, domid, "cap", cap);
+        rc = libxl_tmem_set(ctx, domid, "cap", cap);
     if (opt_p)
-        libxl_tmem_set(ctx, domid, "compress", compress);
+        rc = libxl_tmem_set(ctx, domid, "compress", compress);
 
-    return 0;
+    if (rc < 0)
+        return EXIT_FAILURE;
+
+    return EXIT_SUCCESS;
 }
 
 int main_tmem_shared_auth(int argc, char **argv)
@@ -7968,7 +7976,7 @@ int main_tmem_shared_auth(int argc, char **argv)
     if (!dom && all == 0) {
         fprintf(stderr, "You must specify -a or a domain id.\n\n");
         help("tmem-shared-auth");
-        return 1;
+        return EXIT_FAILURE;
     }
 
     if (all)
@@ -7979,18 +7987,19 @@ int main_tmem_shared_auth(int argc, char **argv)
     if (uuid == NULL || autharg == NULL) {
         fprintf(stderr, "No uuid or auth specified.\n\n");
         help("tmem-shared-auth");
-        return 1;
+        return EXIT_FAILURE;
     }
 
     auth = strtol(autharg, &endptr, 10);
     if (*endptr != '\0') {
         fprintf(stderr, "Invalid auth, valid auth are <0|1>.\n\n");
-        return 1;
+        return EXIT_FAILURE;
     }
 
-    libxl_tmem_shared_auth(ctx, domid, uuid, auth);
+    if (libxl_tmem_shared_auth(ctx, domid, uuid, auth) < 0)
+        return EXIT_FAILURE;
 
-    return 0;
+    return EXIT_SUCCESS;
 }
 
 int main_tmem_freeable(int argc, char **argv)
@@ -8004,10 +8013,10 @@ int main_tmem_freeable(int argc, char **argv)
 
     mb = libxl_tmem_freeable(ctx);
     if (mb == -1)
-        return -1;
+        return EXIT_FAILURE;
 
     printf("%d\n", mb);
-    return 0;
+    return EXIT_SUCCESS;
 }
 
 int main_cpupoolcreate(int argc, char **argv)
-- 
1.9.1


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