On Fri, May 20, 2011 at 8:30 AM, Pekka Enberg <[email protected]> wrote:
> On Fri, May 20, 2011 at 10:01 AM, Amerigo Wang <[email protected]> wrote:
>> 'kvm run --help' works fine but 'kvm help run' shows nothing,
>> this patch implements it.
>>
>> Signed-off-by: WANG Cong <[email protected]>
>
> Looks good to me. Prasad?
Ya nice.
Thanks Amerigo.
>
>> ---
>> diff --git a/tools/kvm/include/kvm/kvm-cmd.h
>> b/tools/kvm/include/kvm/kvm-cmd.h
>> index 8d5fca5..0a73bce 100644
>> --- a/tools/kvm/include/kvm/kvm-cmd.h
>> +++ b/tools/kvm/include/kvm/kvm-cmd.h
>> @@ -4,9 +4,14 @@
>> struct cmd_struct {
>> const char *cmd;
>> int (*fn)(int, const char **, const char *);
>> + void (*help)(void);
>> int option;
>> };
>>
>> +extern struct cmd_struct kvm_commands[];
>> +struct cmd_struct *kvm_get_command(struct cmd_struct *command,
>> + const char *cmd);
>> +
>> int handle_command(struct cmd_struct *command, int argc, const char **argv);
>>
>> #endif
>> diff --git a/tools/kvm/include/kvm/kvm-run.h
>> b/tools/kvm/include/kvm/kvm-run.h
>> index 13104e2..d056ad4 100644
>> --- a/tools/kvm/include/kvm/kvm-run.h
>> +++ b/tools/kvm/include/kvm/kvm-run.h
>> @@ -2,5 +2,6 @@
>> #define __KVM_RUN_H__
>>
>> int kvm_cmd_run(int argc, const char **argv, const char *prefix);
>> +void kvm_run_help(void);
>>
>> #endif
>> diff --git a/tools/kvm/kvm-cmd.c b/tools/kvm/kvm-cmd.c
>> index b63e033..e545d14 100644
>> --- a/tools/kvm/kvm-cmd.c
>> +++ b/tools/kvm/kvm-cmd.c
>> @@ -6,6 +6,14 @@
>>
>> /* user defined header files */
>> #include <kvm/kvm-cmd.h>
>> +#include <kvm/kvm-help.h>
>> +#include <kvm/kvm-run.h>
>> +
>> +struct cmd_struct kvm_commands[] = {
>> + { "help", kvm_cmd_help, NULL, 0 },
>> + { "run", kvm_cmd_run, kvm_run_help, 0 },
>> + { NULL, NULL, NULL, 0 },
>> +};
>>
>> /*
>> * kvm_get_command: Searches the command in an array of the commands and
>> @@ -20,7 +28,7 @@
>> * NULL: If the cmd is not matched with any of the command in the command
>> array
>> * p: Pointer to cmd_struct of the matching command
>> */
>> -static struct cmd_struct *kvm_get_command(struct cmd_struct *command,
>> +struct cmd_struct *kvm_get_command(struct cmd_struct *command,
>> const char *cmd)
>> {
>> struct cmd_struct *p = command;
>> diff --git a/tools/kvm/kvm-help.c b/tools/kvm/kvm-help.c
>> index 5506807..817e4f8 100644
>> --- a/tools/kvm/kvm-help.c
>> +++ b/tools/kvm/kvm-help.c
>> @@ -5,6 +5,7 @@
>> #include <common-cmds.h>
>>
>> #include <kvm/util.h>
>> +#include <kvm/kvm-cmd.h>
>> #include <kvm/kvm-help.h>
>>
>>
>> @@ -31,13 +32,30 @@ static void list_common_cmds_help(void)
>> }
>> }
>>
>> +static void kvm_help(void)
>> +{
>> + printf("\n usage: %s\n\n", kvm_usage_string);
>> + list_common_cmds_help();
>> + printf("\n %s\n\n", kvm_more_info_string);
>> +}
>> +
>> +
>> +static void help_cmd(const char *cmd)
>> +{
>> + struct cmd_struct *p;
>> + p = kvm_get_command(kvm_commands, cmd);
>> + if (!p)
>> + kvm_help();
>> + else if (p->help)
>> + p->help();
>> +}
>> +
>> int kvm_cmd_help(int argc, const char **argv, const char *prefix)
>> {
>> if (!argv || !*argv) {
>> - printf("\n usage: %s\n\n", kvm_usage_string);
>> - list_common_cmds_help();
>> - printf("\n %s\n\n", kvm_more_info_string);
>> + kvm_help();
>> return 0;
>> }
>> + help_cmd(argv[0]);
>> return 0;
>> }
>> diff --git a/tools/kvm/kvm-run.c b/tools/kvm/kvm-run.c
>> index c01517f..f5a1790 100644
>> --- a/tools/kvm/kvm-run.c
>> +++ b/tools/kvm/kvm-run.c
>> @@ -395,6 +395,11 @@ static char *host_image(char *cmd_line, size_t size)
>> return t;
>> }
>>
>> +void kvm_run_help(void)
>> +{
>> + usage_with_options(run_usage, options);
>> +}
>> +
>> int kvm_cmd_run(int argc, const char **argv, const char *prefix)
>> {
>> struct virtio_net_parameters net_params;
>> diff --git a/tools/kvm/main.c b/tools/kvm/main.c
>> index 4fbb268..2138e7b 100644
>> --- a/tools/kvm/main.c
>> +++ b/tools/kvm/main.c
>> @@ -2,18 +2,10 @@
>>
>> /* user defined header files */
>> #include <kvm/kvm-cmd.h>
>> -#include <kvm/kvm-help.h>
>> -#include <kvm/kvm-run.h>
>>
>> static int handle_kvm_command(int argc, char **argv)
>> {
>> - struct cmd_struct command[] = {
>> - { "help", kvm_cmd_help, 0 },
>> - { "run", kvm_cmd_run, 0 },
>> - { NULL, NULL, 0 },
>> - };
>> -
>> - return handle_command(command, argc, (const char **) &argv[0]);
>> + return handle_command(kvm_commands, argc, (const char **) &argv[0]);
>> }
>>
>> int main(int argc, char *argv[])
>> --
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>
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