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Add gamemode_query_status and teach gamemoded '-s'

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This allows the client to query the daemon about the status of gamemode.

	Returns the following:
		 0 if gamemode is inactive
		 1 if gamemode is active
		 2 if gamemode is active and this client is registered
		-1 if the query failed

	Passing -s to gamemoded will simply query and print the current status.

	Allows for more comprehensive testing when using 'gamemoded -r' as well as more reactionary program behaviour
This commit is contained in:
Marc Di Luzio
2018-04-25 14:39:05 +01:00
parent 966c207a33
commit 4f3bc2c9a2
8 changed files with 140 additions and 4 deletions
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38
lib/gamemode_client.h
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@ -30,6 +30,28 @@ POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef CLIENT_GAMEMODE_H
#define CLIENT_GAMEMODE_H
/*
* GameMode supports the following client functions
* Requests are refcounted in the daemon
*
* int gamemode_request_start() - Request gamemode starts
* 0 if the request was sent successfully
* -1 if the request failed
*
* int gamemode_request_end() - Request gamemode ends
* 0 if the request was sent successfully
* -1 if the request failed
*
* int gamemode_query_status() - Query the current status of gamemode
* 0 if gamemode is inactive
* 1 if gamemode is active
* 2 if gamemode is active and this client is registered
* -1 if the query failed
*
* const char* gamemode_error_string() - Get an error string
* returns a string describing any of the above errors
*/
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
@ -51,11 +73,13 @@ static volatile int internal_libgamemode_loaded = 1;
/* Typedefs for the functions to load */
typedef int (*internal_gamemode_request_start)(void);
typedef int (*internal_gamemode_request_end)(void);
typedef int (*internal_gamemode_query_status)(void);
typedef const char *(*internal_gamemode_error_string)(void);
/* Storage for functors */
static internal_gamemode_request_start REAL_internal_gamemode_request_start = NULL;
static internal_gamemode_request_end REAL_internal_gamemode_request_end = NULL;
static internal_gamemode_query_status REAL_internal_gamemode_query_status = NULL;
static internal_gamemode_error_string REAL_internal_gamemode_error_string = NULL;
/**
@ -111,6 +135,9 @@ __attribute__((always_inline)) static inline int internal_load_libgamemode(void)
{ "real_gamemode_request_end",
(void **)&REAL_internal_gamemode_request_end,
sizeof(REAL_internal_gamemode_request_end) },
{ "real_gamemode_query_status",
(void **)&REAL_internal_gamemode_query_status,
sizeof(REAL_internal_gamemode_query_status) },
{ "real_gamemode_error_string",
(void **)&REAL_internal_gamemode_error_string,
sizeof(REAL_internal_gamemode_error_string) },
@ -216,4 +243,15 @@ int gamemode_request_end(void)
return 0;
}
/* Redirect to the real libgamemode */
__attribute__((always_inline)) static inline int gamemode_query_status(void)
{
/* Need to load gamemode */
if (internal_load_libgamemode() < 0) {
return -1;
}
return REAL_internal_gamemode_query_status();
}
#endif // CLIENT_GAMEMODE_H