Clean up qemu.conf parsing

[libvirt] [PATCH 09/23] qemu_conf: split out virQEMUDriverConfigLoadNVRAMEntry

Posted by Ján Tomko 7 years ago

Split out parts of the config parsing code to make
the parent function easier to read.

Signed-off-by: Ján Tomko <jtomko@redhat.com>
---
 src/qemu/qemu_conf.c | 49 +++++++++++++++++++++++++++++---------------
 1 file changed, 32 insertions(+), 17 deletions(-)

diff --git a/src/qemu/qemu_conf.c b/src/qemu/qemu_conf.c
index ca31a222e8..29f948346d 100644
--- a/src/qemu/qemu_conf.c
+++ b/src/qemu/qemu_conf.c
@@ -423,6 +423,37 @@ virQEMUDriverConfigHugeTLBFSInit(virHugeTLBFSPtr hugetlbfs,
 }
 
 
+static int
+virQEMUDriverConfigLoadNVRAMEntry(virQEMUDriverConfigPtr cfg,
+                                  virConfPtr conf)
+{
+    char **nvram = NULL;
+    int ret = -1;
+    size_t i;
+
+    if (virConfGetValueStringList(conf, "nvram", false, &nvram) < 0)
+        goto cleanup;
+    if (nvram) {
+        virFirmwareFreeList(cfg->firmwares, cfg->nfirmwares);
+
+        cfg->nfirmwares = virStringListLength((const char *const *)nvram);
+        if (nvram[0] && VIR_ALLOC_N(cfg->firmwares, cfg->nfirmwares) < 0)
+            goto cleanup;
+
+        for (i = 0; nvram[i] != NULL; i++) {
+            if (VIR_ALLOC(cfg->firmwares[i]) < 0)
+                goto cleanup;
+            if (virFirmwareParse(nvram[i], cfg->firmwares[i]) < 0)
+                goto cleanup;
+        }
+    }
+
+    ret = 0;
+ cleanup:
+    virStringListFree(nvram);
+    return ret;
+}
+
 static int
 virQEMUDriverConfigLoadGlusterDebugEntry(virQEMUDriverConfigPtr cfg,
                                          virConfPtr conf)
@@ -591,7 +622,6 @@ int virQEMUDriverConfigLoadFile(virQEMUDriverConfigPtr cfg,
     size_t i;
     char *stdioHandler = NULL;
     char **hugetlbfs = NULL;
-    char **nvram = NULL;
     char *corestr = NULL;
     bool tmp;
 
@@ -907,22 +937,8 @@ int virQEMUDriverConfigLoadFile(virQEMUDriverConfigPtr cfg,
     if (virConfGetValueBool(conf, "log_timestamp", &cfg->logTimestamp) < 0)
         goto cleanup;
 
-    if (virConfGetValueStringList(conf, "nvram", false, &nvram) < 0)
+    if (virQEMUDriverConfigLoadNVRAMEntry(cfg, conf) < 0)
         goto cleanup;
-    if (nvram) {
-        virFirmwareFreeList(cfg->firmwares, cfg->nfirmwares);
-
-        cfg->nfirmwares = virStringListLength((const char *const *)nvram);
-        if (nvram[0] && VIR_ALLOC_N(cfg->firmwares, cfg->nfirmwares) < 0)
-            goto cleanup;
-
-        for (i = 0; nvram[i] != NULL; i++) {
-            if (VIR_ALLOC(cfg->firmwares[i]) < 0)
-                goto cleanup;
-            if (virFirmwareParse(nvram[i], cfg->firmwares[i]) < 0)
-                goto cleanup;
-        }
-    }
 
     if (virQEMUDriverConfigLoadGlusterDebugEntry(cfg, conf) < 0)
         goto cleanup;
@@ -940,7 +956,6 @@ int virQEMUDriverConfigLoadFile(virQEMUDriverConfigPtr cfg,
 
  cleanup:
     virStringListFree(hugetlbfs);
-    virStringListFree(nvram);
     VIR_FREE(corestr);
     virConfFree(conf);
     return ret;
-- 
2.20.1

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Re: [libvirt] [PATCH 09/23] qemu_conf: split out virQEMUDriverConfigLoadNVRAMEntry

Posted by John Ferlan 7 years ago


On 1/15/19 8:23 AM, Ján Tomko wrote:
> Split out parts of the config parsing code to make
> the parent function easier to read.
> 
> Signed-off-by: Ján Tomko <jtomko@redhat.com>
> ---
>  src/qemu/qemu_conf.c | 49 +++++++++++++++++++++++++++++---------------
>  1 file changed, 32 insertions(+), 17 deletions(-)
> 
> diff --git a/src/qemu/qemu_conf.c b/src/qemu/qemu_conf.c
> index ca31a222e8..29f948346d 100644
> --- a/src/qemu/qemu_conf.c
> +++ b/src/qemu/qemu_conf.c
> @@ -423,6 +423,37 @@ virQEMUDriverConfigHugeTLBFSInit(virHugeTLBFSPtr hugetlbfs,
>  }
>  
>  
> +static int
> +virQEMUDriverConfigLoadNVRAMEntry(virQEMUDriverConfigPtr cfg,
> +                                  virConfPtr conf)
> +{
> +    char **nvram = NULL;

VIR_AUTOPTR(virString)

> +    int ret = -1;
> +    size_t i;
> +
> +    if (virConfGetValueStringList(conf, "nvram", false, &nvram) < 0)
> +        goto cleanup;
> +    if (nvram) {
> +        virFirmwareFreeList(cfg->firmwares, cfg->nfirmwares);
> +
> +        cfg->nfirmwares = virStringListLength((const char *const *)nvram);
> +        if (nvram[0] && VIR_ALLOC_N(cfg->firmwares, cfg->nfirmwares) < 0)
> +            goto cleanup;
> +
> +        for (i = 0; nvram[i] != NULL; i++) {
> +            if (VIR_ALLOC(cfg->firmwares[i]) < 0)
> +                goto cleanup;
> +            if (virFirmwareParse(nvram[i], cfg->firmwares[i]) < 0)
> +                goto cleanup;
> +        }
> +    }
> +
> +    ret = 0;
> + cleanup:
> +    virStringListFree(nvram);
> +    return ret;
> +}
> +

blank line

Reviewed-by: John Ferlan <jferlan@redhat.com>

John

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