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[PATCH v2] tests: Trying fixes test-replication.c on msys2.

Yonggang Luo posted 1 patch 3 years, 7 months ago
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git fetch https://github.com/patchew-project/qemu tags/patchew/20200903220655.1333-1-luoyonggang@gmail.com
Maintainers: Xie Changlong <xiechanglong.d@gmail.com>, Wen Congyang <wencongyang2@huawei.com>
tests/test-replication.c | 17 +++++++++++++----
1 file changed, 13 insertions(+), 4 deletions(-)
[PATCH v2] tests: Trying fixes test-replication.c on msys2.
Posted by Yonggang Luo 3 years, 7 months ago 
Signed-off-by: Yonggang Luo <luoyonggang@gmail.com>
---
 tests/test-replication.c | 17 +++++++++++++----
 1 file changed, 13 insertions(+), 4 deletions(-)

diff --git a/tests/test-replication.c b/tests/test-replication.c
index 9ab3666a90..d0e06f8d77 100644
--- a/tests/test-replication.c
+++ b/tests/test-replication.c
@@ -23,14 +23,18 @@
 
 /* primary */
 #define P_ID "primary-id"
-static char p_local_disk[] = "/tmp/p_local_disk.XXXXXX";
+#define P_LOCAL_DISK "%s/p_local_disk.XXXXXX"
+static char p_local_disk[PATH_MAX];
 
 /* secondary */
 #define S_ID "secondary-id"
 #define S_LOCAL_DISK_ID "secondary-local-disk-id"
-static char s_local_disk[] = "/tmp/s_local_disk.XXXXXX";
-static char s_active_disk[] = "/tmp/s_active_disk.XXXXXX";
-static char s_hidden_disk[] = "/tmp/s_hidden_disk.XXXXXX";
+#define S_LOCAL_DISK "%s/s_local_disk.XXXXXX"
+static char s_local_disk[PATH_MAX];
+#define S_ACTIVE_DISK "%s/s_active_disk.XXXXXX"
+static char s_active_disk[PATH_MAX];
+#define S_HIDDEN_DISK "%s/s_hidden_disk.XXXXXX"
+static char s_hidden_disk[PATH_MAX];
 
 /* FIXME: steal from blockdev.c */
 QemuOptsList qemu_drive_opts = {
@@ -571,7 +575,12 @@ static void setup_sigabrt_handler(void)
 int main(int argc, char **argv)
 {
     int ret;
+    const char *tmpdir = g_get_tmp_dir();
     qemu_init_main_loop(&error_fatal);
+    sprintf(p_local_disk, P_LOCAL_DISK, tmpdir);
+    sprintf(s_local_disk, S_LOCAL_DISK, tmpdir);
+    sprintf(s_active_disk, S_ACTIVE_DISK, tmpdir);
+    sprintf(s_hidden_disk, S_HIDDEN_DISK, tmpdir);
     bdrv_init();
 
     g_test_init(&argc, &argv, NULL);
-- 
2.28.0.windows.1
Re: [PATCH v2] tests: Trying fixes test-replication.c on msys2.
Posted by Paolo Bonzini 3 years, 7 months ago 
On 04/09/20 00:06, Yonggang Luo wrote:
> Signed-off-by: Yonggang Luo <luoyonggang@gmail.com>
> ---
>  tests/test-replication.c | 17 +++++++++++++----
>  1 file changed, 13 insertions(+), 4 deletions(-)
> 
> diff --git a/tests/test-replication.c b/tests/test-replication.c
> index 9ab3666a90..d0e06f8d77 100644
> --- a/tests/test-replication.c
> +++ b/tests/test-replication.c
> @@ -23,14 +23,18 @@
>  
>  /* primary */
>  #define P_ID "primary-id"
> -static char p_local_disk[] = "/tmp/p_local_disk.XXXXXX";
> +#define P_LOCAL_DISK "%s/p_local_disk.XXXXXX"
> +static char p_local_disk[PATH_MAX];
>  
>  /* secondary */
>  #define S_ID "secondary-id"
>  #define S_LOCAL_DISK_ID "secondary-local-disk-id"
> -static char s_local_disk[] = "/tmp/s_local_disk.XXXXXX";
> -static char s_active_disk[] = "/tmp/s_active_disk.XXXXXX";
> -static char s_hidden_disk[] = "/tmp/s_hidden_disk.XXXXXX";
> +#define S_LOCAL_DISK "%s/s_local_disk.XXXXXX"
> +static char s_local_disk[PATH_MAX];
> +#define S_ACTIVE_DISK "%s/s_active_disk.XXXXXX"
> +static char s_active_disk[PATH_MAX];
> +#define S_HIDDEN_DISK "%s/s_hidden_disk.XXXXXX"
> +static char s_hidden_disk[PATH_MAX];
>  
>  /* FIXME: steal from blockdev.c */
>  QemuOptsList qemu_drive_opts = {
> @@ -571,7 +575,12 @@ static void setup_sigabrt_handler(void)
>  int main(int argc, char **argv)
>  {
>      int ret;
> +    const char *tmpdir = g_get_tmp_dir();
>      qemu_init_main_loop(&error_fatal);
> +    sprintf(p_local_disk, P_LOCAL_DISK, tmpdir);
> +    sprintf(s_local_disk, S_LOCAL_DISK, tmpdir);
> +    sprintf(s_active_disk, S_ACTIVE_DISK, tmpdir);
> +    sprintf(s_hidden_disk, S_HIDDEN_DISK, tmpdir);
>      bdrv_init();
>  
>      g_test_init(&argc, &argv, NULL);
> 

Cc: qemu-block@nongnu.org
Re: [PATCH v2] tests: Trying fixes test-replication.c on msys2.
Posted by Thomas Huth 3 years, 7 months ago 
On 04/09/2020 00.06, Yonggang Luo wrote:
> Signed-off-by: Yonggang Luo <luoyonggang@gmail.com>
> ---
>  tests/test-replication.c | 17 +++++++++++++----
>  1 file changed, 13 insertions(+), 4 deletions(-)
> 
> diff --git a/tests/test-replication.c b/tests/test-replication.c
> index 9ab3666a90..d0e06f8d77 100644
> --- a/tests/test-replication.c
> +++ b/tests/test-replication.c
> @@ -23,14 +23,18 @@
>  
>  /* primary */
>  #define P_ID "primary-id"
> -static char p_local_disk[] = "/tmp/p_local_disk.XXXXXX";
> +#define P_LOCAL_DISK "%s/p_local_disk.XXXXXX"
> +static char p_local_disk[PATH_MAX];
>  
>  /* secondary */
>  #define S_ID "secondary-id"
>  #define S_LOCAL_DISK_ID "secondary-local-disk-id"
> -static char s_local_disk[] = "/tmp/s_local_disk.XXXXXX";
> -static char s_active_disk[] = "/tmp/s_active_disk.XXXXXX";
> -static char s_hidden_disk[] = "/tmp/s_hidden_disk.XXXXXX";
> +#define S_LOCAL_DISK "%s/s_local_disk.XXXXXX"
> +static char s_local_disk[PATH_MAX];
> +#define S_ACTIVE_DISK "%s/s_active_disk.XXXXXX"
> +static char s_active_disk[PATH_MAX];
> +#define S_HIDDEN_DISK "%s/s_hidden_disk.XXXXXX"
> +static char s_hidden_disk[PATH_MAX];
>  
>  /* FIXME: steal from blockdev.c */
>  QemuOptsList qemu_drive_opts = {
> @@ -571,7 +575,12 @@ static void setup_sigabrt_handler(void)
>  int main(int argc, char **argv)
>  {
>      int ret;
> +    const char *tmpdir = g_get_tmp_dir();
>      qemu_init_main_loop(&error_fatal);
> +    sprintf(p_local_disk, P_LOCAL_DISK, tmpdir);
> +    sprintf(s_local_disk, S_LOCAL_DISK, tmpdir);
> +    sprintf(s_active_disk, S_ACTIVE_DISK, tmpdir);
> +    sprintf(s_hidden_disk, S_HIDDEN_DISK, tmpdir);

Sounds like the right way to go, but I think I'd do it without the
#defines and simply use the strings directly here, what do you think?

 Thomas


PS: Please use scripts/get_maintainer.pl (or the MAINTAINERS file
directly) on your patches to find out the right maintainers that you
should put on CC: for every patch.
Re: [PATCH v2] tests: Trying fixes test-replication.c on msys2.
Posted by 罗勇刚 (Yonggang Luo) 3 years, 7 months ago 
On Fri, Sep 4, 2020 at 9:07 PM Thomas Huth <thuth@redhat.com> wrote:

> On 04/09/2020 00.06, Yonggang Luo wrote:
> > Signed-off-by: Yonggang Luo <luoyonggang@gmail.com>
> > ---
> >  tests/test-replication.c | 17 +++++++++++++----
> >  1 file changed, 13 insertions(+), 4 deletions(-)
> >
> > diff --git a/tests/test-replication.c b/tests/test-replication.c
> > index 9ab3666a90..d0e06f8d77 100644
> > --- a/tests/test-replication.c
> > +++ b/tests/test-replication.c
> > @@ -23,14 +23,18 @@
> >
> >  /* primary */
> >  #define P_ID "primary-id"
> > -static char p_local_disk[] = "/tmp/p_local_disk.XXXXXX";
> > +#define P_LOCAL_DISK "%s/p_local_disk.XXXXXX"
> > +static char p_local_disk[PATH_MAX];
> >
> >  /* secondary */
> >  #define S_ID "secondary-id"
> >  #define S_LOCAL_DISK_ID "secondary-local-disk-id"
> > -static char s_local_disk[] = "/tmp/s_local_disk.XXXXXX";
> > -static char s_active_disk[] = "/tmp/s_active_disk.XXXXXX";
> > -static char s_hidden_disk[] = "/tmp/s_hidden_disk.XXXXXX";
> > +#define S_LOCAL_DISK "%s/s_local_disk.XXXXXX"
> > +static char s_local_disk[PATH_MAX];
> > +#define S_ACTIVE_DISK "%s/s_active_disk.XXXXXX"
> > +static char s_active_disk[PATH_MAX];
> > +#define S_HIDDEN_DISK "%s/s_hidden_disk.XXXXXX"
> > +static char s_hidden_disk[PATH_MAX];
> >
> >  /* FIXME: steal from blockdev.c */
> >  QemuOptsList qemu_drive_opts = {
> > @@ -571,7 +575,12 @@ static void setup_sigabrt_handler(void)
> >  int main(int argc, char **argv)
> >  {
> >      int ret;
> > +    const char *tmpdir = g_get_tmp_dir();
> >      qemu_init_main_loop(&error_fatal);
> > +    sprintf(p_local_disk, P_LOCAL_DISK, tmpdir);
> > +    sprintf(s_local_disk, S_LOCAL_DISK, tmpdir);
> > +    sprintf(s_active_disk, S_ACTIVE_DISK, tmpdir);
> > +    sprintf(s_hidden_disk, S_HIDDEN_DISK, tmpdir);
>
> Sounds like the right way to go, but I think I'd do it without the
> #defines and simply use the strings directly here, what do you think?
>
I place them at the same place by define is for easily readable, if I
directly place at sprintf,
then the code are harder to read

>
>  Thomas
>
>
> PS: Please use scripts/get_maintainer.pl (or the MAINTAINERS file
> directly) on your patches to find out the right maintainers that you
> should put on CC: for every patch.
>
>

-- 
         此致
礼
罗勇刚
Yours
    sincerely,
Yonggang Luo
Re: [PATCH v2] tests: Trying fixes test-replication.c on msys2.
Posted by Thomas Huth 3 years, 7 months ago 
On 05/09/2020 05.11, 罗勇刚(Yonggang Luo) wrote:
> 
> 
> On Fri, Sep 4, 2020 at 9:07 PM Thomas Huth <thuth@redhat.com
> <mailto:thuth@redhat.com>> wrote:
> 
>     On 04/09/2020 00.06, Yonggang Luo wrote:
>     > Signed-off-by: Yonggang Luo <luoyonggang@gmail.com
>     <mailto:luoyonggang@gmail.com>>
>     > ---
>     >  tests/test-replication.c | 17 +++++++++++++----
>     >  1 file changed, 13 insertions(+), 4 deletions(-)
>     >
>     > diff --git a/tests/test-replication.c b/tests/test-replication.c
>     > index 9ab3666a90..d0e06f8d77 100644
>     > --- a/tests/test-replication.c
>     > +++ b/tests/test-replication.c
>     > @@ -23,14 +23,18 @@
>     > 
>     >  /* primary */
>     >  #define P_ID "primary-id"
>     > -static char p_local_disk[] = "/tmp/p_local_disk.XXXXXX";
>     > +#define P_LOCAL_DISK "%s/p_local_disk.XXXXXX"
>     > +static char p_local_disk[PATH_MAX];
>     > 
>     >  /* secondary */
>     >  #define S_ID "secondary-id"
>     >  #define S_LOCAL_DISK_ID "secondary-local-disk-id"
>     > -static char s_local_disk[] = "/tmp/s_local_disk.XXXXXX";
>     > -static char s_active_disk[] = "/tmp/s_active_disk.XXXXXX";
>     > -static char s_hidden_disk[] = "/tmp/s_hidden_disk.XXXXXX";
>     > +#define S_LOCAL_DISK "%s/s_local_disk.XXXXXX"
>     > +static char s_local_disk[PATH_MAX];
>     > +#define S_ACTIVE_DISK "%s/s_active_disk.XXXXXX"
>     > +static char s_active_disk[PATH_MAX];
>     > +#define S_HIDDEN_DISK "%s/s_hidden_disk.XXXXXX"
>     > +static char s_hidden_disk[PATH_MAX];
>     > 
>     >  /* FIXME: steal from blockdev.c */
>     >  QemuOptsList qemu_drive_opts = {
>     > @@ -571,7 +575,12 @@ static void setup_sigabrt_handler(void)
>     >  int main(int argc, char **argv)
>     >  {
>     >      int ret;
>     > +    const char *tmpdir = g_get_tmp_dir();
>     >      qemu_init_main_loop(&error_fatal);
>     > +    sprintf(p_local_disk, P_LOCAL_DISK, tmpdir);
>     > +    sprintf(s_local_disk, S_LOCAL_DISK, tmpdir);
>     > +    sprintf(s_active_disk, S_ACTIVE_DISK, tmpdir);
>     > +    sprintf(s_hidden_disk, S_HIDDEN_DISK, tmpdir);
> 
>     Sounds like the right way to go, but I think I'd do it without the
>     #defines and simply use the strings directly here, what do you think?
> 
> I place them at the same place by define is for easily readable, if I
> directly place at sprintf, then the code are harder to read 

IMHO it's easier to read the code the other way round: For understanding
the sprintf and its arguments, you have to know the format string, e.g.
will the "tmpdir" be handled via "%s", or "%p" or maybe something
completely different? If you then have to look up a macro first, it is a
cumbersome indirection. #defines are certainly fine for things that are
used multiple times, but here the strings are only used once, so the
indirection is really not needed.

 Thomas

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