#include <linux/aquosa/qres_config.h>#include "qres_lib.h"#include <linux/aquosa/qos_types.h>#include <linux/aquosa/qos_debug.h>#include <linux/aquosa/qres_gw.h>#include <sys/ioctl.h>#include <sys/types.h>#include <sys/stat.h>#include <fcntl.h>#include <string.h>#include <errno.h>Go to the source code of this file.
Defines | |
| #define | IOCTL_OP_CREATE_SERVER _IOR (QRES_MAJOR_NUM, QRES_OP_CREATE_SERVER, qres_iparams_t) |
| All of these must have qres_iparams_t as argument, otherwise qres_gw_ks() complaints about wrong size. | |
| #define | IOCTL_OP_DESTROY_SERVER _IOR (QRES_MAJOR_NUM, QRES_OP_DESTROY_SERVER, qres_sid_t) |
| #define | IOCTL_OP_ATTACH_TO_SERVER _IOR (QRES_MAJOR_NUM, QRES_OP_ATTACH_TO_SERVER, qres_attach_iparams_t) |
| #define | IOCTL_OP_DETACH_FROM_SERVER _IOR (QRES_MAJOR_NUM, QRES_OP_DETACH_FROM_SERVER, qres_attach_iparams_t) |
| #define | IOCTL_OP_SET_PARAMS _IOR (QRES_MAJOR_NUM, QRES_OP_SET_PARAMS, qres_iparams_t) |
| #define | IOCTL_OP_GET_PARAMS _IOWR(QRES_MAJOR_NUM, QRES_OP_GET_PARAMS, qres_iparams_t) |
| #define | IOCTL_OP_GET_SERVER_ID _IOWR(QRES_MAJOR_NUM, QRES_OP_GET_SERVER_ID, qres_attach_iparams_t) |
| #define | IOCTL_OP_GET_EXEC_TIME _IOWR(QRES_MAJOR_NUM, QRES_OP_GET_EXEC_TIME, qres_time_iparams_t) |
| #define | IOCTL_OP_GET_CURR_BUDGET _IOWR(QRES_MAJOR_NUM, QRES_OP_GET_CURR_BUDGET, qres_time_iparams_t) |
| #define | IOCTL_OP_GET_NEXT_BUDGET _IOWR(QRES_MAJOR_NUM, QRES_OP_GET_NEXT_BUDGET, qres_time_iparams_t) |
| #define | IOCTL_OP_GET_APPR_BUDGET _IOWR(QRES_MAJOR_NUM, QRES_OP_GET_APPR_BUDGET, qres_time_iparams_t) |
| #define | IOCTL_OP_GET_DEADLINE _IOWR(QRES_MAJOR_NUM, QRES_OP_GET_DEADLINE, qres_timespec_iparams_t) |
| #define | IOCTL_OP_SET_WEIGHT _IOR (QRES_MAJOR_NUM, QRES_OP_SET_WEIGHT, qres_weight_iparams_t) |
| #define | IOCTL_OP_GET_WEIGHT _IOWR(QRES_MAJOR_NUM, QRES_OP_GET_WEIGHT, qres_weight_iparams_t) |
| #define | QRES_DEV_PATHNAME QOS_DEV_PATH "/" QRES_DEV_NAME |
Functions | |
| static qos_rv | check_open () |
| qos_rv | qres_get_sid (pid_t pid, tid_t tid, qres_sid_t *p_sid) |
| Get a thread server id, or QOS_E_NOT_FOUND if it is not attached to any server. | |
| qos_rv | qres_create_server (qres_params_t *p_params, qres_sid_t *p_sid) |
| : in the following functions, if pid == 0 -> apply to itself | |
| qos_rv | qres_destroy_server (qres_sid_t sid) |
| Detach all processes from a server and destroy it. | |
| qos_rv | qres_attach_thread (qres_sid_t sid, pid_t pid, tid_t tid) |
| Attach a task to an already existing server. | |
| qos_rv | qres_detach_thread (qres_sid_t sid, pid_t pid, tid_t tid) |
| Detach from the QoS Server and possibly destroy it. | |
| qos_rv | qres_init () |
| Initializes the QoS RES library. | |
| qos_rv | qres_cleanup () |
| Cleanup resources associated to the QoS RES Library. | |
| qos_rv | qres_module_exists () |
| Detect module in /proc/modules. | |
| qos_rv | qres_get_exec_time (qres_sid_t sid, qres_time_t *p_exec_time, qres_atime_t *p_abs_time) |
| Retrieve time info relative to the current server. | |
| qos_rv | qres_get_curr_budget (qres_sid_t sid, qres_time_t *p_curr_budget) |
| Retrieve remaining budget for the current server instance. | |
| qos_rv | qres_get_next_budget (qres_sid_t sid, qres_time_t *p_next_budget) |
| Retrieve the budget that is likely to be used for the very next server instance. | |
| qos_rv | qres_get_appr_budget (qres_sid_t sid, qres_time_t *p_appr_budget) |
| Retrieve the budget that has been approved for the subsequent server instances. | |
| qos_rv | qres_set_params (qres_sid_t sid, qres_params_t *p_params) |
| Change QoS scheduling parameters. | |
| qos_rv | qres_get_params (qres_sid_t sid, qres_params_t *qres_p) |
| Retrieve QoS scheduling parameters. | |
| qos_rv | qres_set_bandwidth (qres_sid_t sid, qos_bw_t bw) |
| Change bandwidth. | |
| qos_rv | qres_get_bandwidth (qres_sid_t sid, float *bw) |
| Get the bandwidth of the server with the supplied ID. | |
| qos_rv | qres_get_deadline (qres_sid_t sid, struct timespec *p_deadline) |
| Retrieve current scheduling deadline. | |
| qos_rv | qres_set_weight (qres_sid_t sid, unsigned int weight) |
| Set scheduling weight (i.e., used by shrub). | |
| qos_rv | qres_get_weight (qres_sid_t sid, unsigned int *p_weight) |
| Retrieve scheduling weight (i.e., used by shrub). | |
| qos_rv | qres_get_servers (qres_sid_t *sids, size_t *n) |
| Retrieve the existing servers. | |
Variables | |
| int | qres_fd = -1 |
| File descriptor of the QoS Res Device. | |
| qres_params_t | server_params |
| Server period set with create_server or set_params. | |
| #define IOCTL_OP_ATTACH_TO_SERVER _IOR (QRES_MAJOR_NUM, QRES_OP_ATTACH_TO_SERVER, qres_attach_iparams_t) |
Definition at line 21 of file qres_lib.c.
Referenced by qres_attach_thread().
| #define IOCTL_OP_CREATE_SERVER _IOR (QRES_MAJOR_NUM, QRES_OP_CREATE_SERVER, qres_iparams_t) |
All of these must have qres_iparams_t as argument, otherwise qres_gw_ks() complaints about wrong size.
Definition at line 19 of file qres_lib.c.
Referenced by qres_create_server().
| #define IOCTL_OP_DESTROY_SERVER _IOR (QRES_MAJOR_NUM, QRES_OP_DESTROY_SERVER, qres_sid_t) |
Definition at line 20 of file qres_lib.c.
Referenced by qres_destroy_server().
| #define IOCTL_OP_DETACH_FROM_SERVER _IOR (QRES_MAJOR_NUM, QRES_OP_DETACH_FROM_SERVER, qres_attach_iparams_t) |
Definition at line 22 of file qres_lib.c.
Referenced by qres_detach_thread().
| #define IOCTL_OP_GET_APPR_BUDGET _IOWR(QRES_MAJOR_NUM, QRES_OP_GET_APPR_BUDGET, qres_time_iparams_t) |
Definition at line 29 of file qres_lib.c.
Referenced by qres_get_appr_budget().
| #define IOCTL_OP_GET_CURR_BUDGET _IOWR(QRES_MAJOR_NUM, QRES_OP_GET_CURR_BUDGET, qres_time_iparams_t) |
Definition at line 27 of file qres_lib.c.
Referenced by qres_get_curr_budget().
| #define IOCTL_OP_GET_DEADLINE _IOWR(QRES_MAJOR_NUM, QRES_OP_GET_DEADLINE, qres_timespec_iparams_t) |
Definition at line 30 of file qres_lib.c.
Referenced by qres_get_deadline().
| #define IOCTL_OP_GET_EXEC_TIME _IOWR(QRES_MAJOR_NUM, QRES_OP_GET_EXEC_TIME, qres_time_iparams_t) |
Definition at line 26 of file qres_lib.c.
Referenced by qres_get_exec_time().
| #define IOCTL_OP_GET_NEXT_BUDGET _IOWR(QRES_MAJOR_NUM, QRES_OP_GET_NEXT_BUDGET, qres_time_iparams_t) |
Definition at line 28 of file qres_lib.c.
Referenced by qres_get_next_budget().
| #define IOCTL_OP_GET_PARAMS _IOWR(QRES_MAJOR_NUM, QRES_OP_GET_PARAMS, qres_iparams_t) |
Definition at line 24 of file qres_lib.c.
Referenced by qres_get_bandwidth(), and qres_get_params().
| #define IOCTL_OP_GET_SERVER_ID _IOWR(QRES_MAJOR_NUM, QRES_OP_GET_SERVER_ID, qres_attach_iparams_t) |
Definition at line 25 of file qres_lib.c.
Referenced by qres_get_sid().
| #define IOCTL_OP_GET_WEIGHT _IOWR(QRES_MAJOR_NUM, QRES_OP_GET_WEIGHT, qres_weight_iparams_t) |
Definition at line 32 of file qres_lib.c.
Referenced by qres_get_weight().
| #define IOCTL_OP_SET_PARAMS _IOR (QRES_MAJOR_NUM, QRES_OP_SET_PARAMS, qres_iparams_t) |
Definition at line 23 of file qres_lib.c.
Referenced by qres_set_bandwidth(), and qres_set_params().
| #define IOCTL_OP_SET_WEIGHT _IOR (QRES_MAJOR_NUM, QRES_OP_SET_WEIGHT, qres_weight_iparams_t) |
Definition at line 31 of file qres_lib.c.
Referenced by qres_set_weight().
| #define QRES_DEV_PATHNAME QOS_DEV_PATH "/" QRES_DEV_NAME |
Definition at line 138 of file qres_lib.c.
Referenced by qres_init().
| static qos_rv check_open | ( | ) | [inline, static] |
Definition at line 48 of file qres_lib.c.
References QOS_OK, qres_fd, and qres_init().
Referenced by qres_attach_thread(), qres_create_server(), qres_destroy_server(), qres_detach_thread(), qres_get_appr_budget(), qres_get_bandwidth(), qres_get_curr_budget(), qres_get_deadline(), qres_get_exec_time(), qres_get_next_budget(), qres_get_params(), qres_get_sid(), qres_get_weight(), qres_set_bandwidth(), qres_set_params(), and qres_set_weight().
| int qres_fd = -1 |
File descriptor of the QoS Res Device.
Definition at line 35 of file qres_lib.c.
Referenced by check_open(), qres_attach_thread(), qres_cleanup(), qres_create_server(), qres_destroy_server(), qres_detach_thread(), qres_get_appr_budget(), qres_get_bandwidth(), qres_get_curr_budget(), qres_get_deadline(), qres_get_exec_time(), qres_get_next_budget(), qres_get_params(), qres_get_sid(), qres_get_weight(), qres_init(), qres_set_bandwidth(), qres_set_params(), and qres_set_weight().
{
.Q = 0,
.Q_min = 0,
.P = 0,
.flags = 0,
.timeout = 0
}
Server period set with create_server or set_params.
Definition at line 38 of file qres_lib.c.
1.6.3