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Re: [Qemu-devel] [PATCH 09/10] qemu-ga: bios_supports_mode(): improve er
From: |
mdroth |
Subject: |
Re: [Qemu-devel] [PATCH 09/10] qemu-ga: bios_supports_mode(): improve error reporting |
Date: |
Wed, 28 Nov 2012 13:48:18 -0600 |
User-agent: |
Mutt/1.5.21 (2010-09-15) |
On Tue, Nov 27, 2012 at 11:02:03AM -0200, Luiz Capitulino wrote:
> Most errors are QERR_UNDEFINED_ERROR today.
>
> Signed-off-by: Luiz Capitulino <address@hidden>
Reviewed-by: Michael Roth <address@hidden>
> ---
> qga/commands-posix.c | 46 +++++++++++++++++++++++++++-------------------
> 1 file changed, 27 insertions(+), 19 deletions(-)
>
> diff --git a/qga/commands-posix.c b/qga/commands-posix.c
> index c399f02..5a7e308 100644
> --- a/qga/commands-posix.c
> +++ b/qga/commands-posix.c
> @@ -618,8 +618,9 @@ error:
> static void bios_supports_mode(const char *pmutils_bin, const char
> *pmutils_arg,
> const char *sysfile_str, Error **err)
> {
> + Error *local_err = NULL;
> char *pmutils_path;
> - pid_t pid, rpid;
> + pid_t pid;
> int status;
>
> pmutils_path = g_find_program_in_path(pmutils_bin);
> @@ -664,31 +665,38 @@ static void bios_supports_mode(const char *pmutils_bin,
> const char *pmutils_arg,
> }
>
> _exit(SUSPEND_NOT_SUPPORTED);
> + } else if (pid < 0) {
> + error_setg_errno(err, errno, "failed to create child process");
> + goto out;
> }
>
> - g_free(pmutils_path);
> + ga_wait_child(pid, &status, &local_err);
> + if (error_is_set(&local_err)) {
> + error_propagate(err, local_err);
> + goto out;
> + }
>
> - if (pid < 0) {
> - goto undef_err;
> + if (!WIFEXITED(status)) {
> + error_setg(err, "child process has terminated abnormally");
> + goto out;
> }
>
> - do {
> - rpid = waitpid(pid, &status, 0);
> - } while (rpid == -1 && errno == EINTR);
> - if (rpid == pid && WIFEXITED(status)) {
> - switch (WEXITSTATUS(status)) {
> - case SUSPEND_SUPPORTED:
> - return;
> - case SUSPEND_NOT_SUPPORTED:
> - error_set(err, QERR_UNSUPPORTED);
> - return;
> - default:
> - goto undef_err;
> - }
> + switch (WEXITSTATUS(status)) {
> + case SUSPEND_SUPPORTED:
> + goto out;
> + case SUSPEND_NOT_SUPPORTED:
> + error_setg(err,
> + "the requested suspend mode is not supported by the
> guest");
> + goto out;
> + default:
> + error_setg(err,
> + "the helper program '%s' returned an unexpected exit
> status"
> + " code (%d)", pmutils_path, WEXITSTATUS(status));
> + goto out;
> }
>
> -undef_err:
> - error_set(err, QERR_UNDEFINED_ERROR);
> +out:
> + g_free(pmutils_path);
> }
>
> static void guest_suspend(const char *pmutils_bin, const char *sysfile_str,
> --
> 1.8.0
>
- [Qemu-devel] [PATCH 08/10] qemu-ga: qmp_guest_network_get_interfaces(): get rid of snprintf() + error_set(), (continued)
- [Qemu-devel] [PATCH 08/10] qemu-ga: qmp_guest_network_get_interfaces(): get rid of snprintf() + error_set(), Luiz Capitulino, 2012/11/27
- [Qemu-devel] [PATCH 05/10] qemu-ga: build_fs_mount_list(): take an Error argument, Luiz Capitulino, 2012/11/27
- [Qemu-devel] [PATCH 10/10] qemu-ga: guest_suspend(): improve error reporting, Luiz Capitulino, 2012/11/27
- [Qemu-devel] [PATCH 07/10] qemu-ga: qmp_guest_fstrim(): get rid of sprintf() + error_set(), Luiz Capitulino, 2012/11/27
- [Qemu-devel] [PATCH 09/10] qemu-ga: bios_supports_mode(): improve error reporting, Luiz Capitulino, 2012/11/27
- Re: [Qemu-devel] [PATCH 09/10] qemu-ga: bios_supports_mode(): improve error reporting,
mdroth <=
- Re: [Qemu-devel] [PATCH 00/10] qemu-ga: revamp error messages (for 1.4), mdroth, 2012/11/28
- Re: [Qemu-devel] [PATCH 00/10] qemu-ga: revamp error messages (for 1.4), mdroth, 2012/11/30