Implementation of cpg_iteration functions

This functions allows iterate available cpg groups
and their members. API is modelled like ckpt iteration
functions.


git-svn-id: http://svn.fedorahosted.org/svn/corosync/trunk@2399 fd59a12c-fef9-0310-b244-a6a79926bd2f
This commit is contained in:
Jan Friesse 2009-08-31 09:23:16 +00:00
parent 519616de0c
commit db87fb8f56
6 changed files with 653 additions and 7 deletions

View File

@ -164,6 +164,9 @@ SOMAJOR="4"
SOMINOR="0"
SOMICRO="0"
SONAME="${SOMAJOR}.${SOMINOR}.${SOMICRO}"
# Special for libcpg
CPG_SOMICRO="1"
CPG_SONAME="${SOMAJOR}.${SOMINOR}.${CPG_SOMICRO}"
# local options
AC_ARG_ENABLE([ansi],
@ -375,6 +378,7 @@ AC_SUBST([SOMAJOR])
AC_SUBST([SOMINOR])
AC_SUBST([SOMICRO])
AC_SUBST([SONAME])
AC_SUBST([CPG_SONAME])
AC_SUBST([OS_DYFLAGS])
@ -420,6 +424,7 @@ AC_MSG_RESULT([ Features =${PACKAGE_FEATURES}])
AC_MSG_RESULT([])
AC_MSG_RESULT([$PACKAGE build info:])
AC_MSG_RESULT([ Library SONAME = ${SONAME}])
AC_MSG_RESULT([ CPG Library SONAME = ${CPG_SONAME}])
AC_MSG_RESULT([ Default optimization = ${OPT_CFLAGS}])
AC_MSG_RESULT([ Default debug options = ${GDB_CFLAGS}])
AC_MSG_RESULT([ Extra compiler warnings = ${EXTRA_WARNING}])

View File

@ -4,6 +4,7 @@
* All rights reserved.
*
* Author: Christine Caulfield (ccaulfi@redhat.com)
* Author: Jan Friesse (jfriesse@redhat.com)
*
* This software licensed under BSD license, the text of which follows:
*
@ -48,6 +49,8 @@ extern "C" {
*/
typedef uint64_t cpg_handle_t;
typedef uint64_t cpg_iteration_handle_t;
typedef enum {
CPG_TYPE_UNORDERED, /* not implemented */
CPG_TYPE_FIFO, /* same as agreed */
@ -69,6 +72,12 @@ typedef enum {
CPG_REASON_PROCDOWN = 5
} cpg_reason_t;
typedef enum {
CPG_ITERATION_NAME_ONLY = 1,
CPG_ITERATION_ONE_GROUP = 2,
CPG_ITERATION_ALL = 3,
} cpg_iteration_type_t;
struct cpg_address {
uint32_t nodeid;
uint32_t pid;
@ -83,6 +92,12 @@ struct cpg_name {
#define CPG_MEMBERS_MAX 128
struct cpg_iteration_description_t {
struct cpg_name group;
uint32_t nodeid;
uint32_t pid;
};
typedef void (*cpg_deliver_fn_t) (
cpg_handle_t handle,
const struct cpg_name *group_name,
@ -209,6 +224,22 @@ cs_error_t cpg_zcb_mcast_joined (
void *msg,
size_t msg_len);
/*
* Iteration
*/
cs_error_t cpg_iteration_initialize(
cpg_handle_t handle,
cpg_iteration_type_t iteration_type,
const struct cpg_name *group,
cpg_iteration_handle_t *cpg_iteration_handle);
cs_error_t cpg_iteration_next(
cpg_iteration_handle_t handle,
struct cpg_iteration_description_t *description);
cs_error_t cpg_iteration_finalize (
cpg_iteration_handle_t handle);
#ifdef __cplusplus
}
#endif

View File

@ -45,6 +45,9 @@ enum req_cpg_types {
MESSAGE_REQ_CPG_MCAST = 2,
MESSAGE_REQ_CPG_MEMBERSHIP = 3,
MESSAGE_REQ_CPG_LOCAL_GET = 4,
MESSAGE_REQ_CPG_ITERATIONINITIALIZE = 5,
MESSAGE_REQ_CPG_ITERATIONNEXT = 6,
MESSAGE_REQ_CPG_ITERATIONFINALIZE = 7
};
enum res_cpg_types {
@ -56,7 +59,10 @@ enum res_cpg_types {
MESSAGE_RES_CPG_DELIVER_CALLBACK = 5,
MESSAGE_RES_CPG_FLOW_CONTROL_STATE_SET = 6,
MESSAGE_RES_CPG_LOCAL_GET = 7,
MESSAGE_RES_CPG_FLOWCONTROL_CALLBACK = 8
MESSAGE_RES_CPG_FLOWCONTROL_CALLBACK = 8,
MESSAGE_RES_CPG_ITERATIONINITIALIZE = 9,
MESSAGE_RES_CPG_ITERATIONNEXT = 10,
MESSAGE_RES_CPG_ITERATIONFINALIZE = 11,
};
enum lib_cpg_confchg_reason {
@ -126,6 +132,21 @@ static inline int mar_name_compare (
g1->length - g2->length);
}
typedef struct {
mar_cpg_name_t group;
mar_uint32_t nodeid;
mar_uint32_t pid;
} mar_cpg_iteration_description_t;
static inline void marshall_from_mar_cpg_iteration_description_t(
struct cpg_iteration_description_t *dest,
const mar_cpg_iteration_description_t *src)
{
dest->nodeid = src->nodeid;
dest->pid = src->pid;
marshall_from_mar_cpg_name_t (&dest->group, &src->group);
};
struct req_lib_cpg_join {
coroipc_request_header_t header __attribute__((aligned(8)));
mar_cpg_name_t group_name __attribute__((aligned(8)));
@ -217,4 +238,34 @@ struct res_lib_cpg_leave {
coroipc_response_header_t header __attribute__((aligned(8)));
};
struct req_lib_cpg_iterationinitialize {
coroipc_request_header_t header __attribute__((aligned(8)));
mar_cpg_name_t group_name __attribute__((aligned(8)));
mar_uint32_t iteration_type __attribute__((aligned(8)));
};
struct res_lib_cpg_iterationinitialize {
coroipc_response_header_t header __attribute__((aligned(8)));
hdb_handle_t iteration_handle __attribute__((aligned(8)));
};
struct req_lib_cpg_iterationnext {
coroipc_request_header_t header __attribute__((aligned(8)));
hdb_handle_t iteration_handle __attribute__((aligned(8)));
};
struct res_lib_cpg_iterationnext {
coroipc_response_header_t header __attribute__((aligned(8)));
mar_cpg_iteration_description_t description __attribute__((aligned(8)));
};
struct req_lib_cpg_iterationfinalize {
coroipc_request_header_t header __attribute__((aligned(8)));
hdb_handle_t iteration_handle __attribute__((aligned(8)));
};
struct res_lib_cpg_iterationfinalize {
coroipc_response_header_t header __attribute__((aligned(8)));
};
#endif /* IPC_CPG_H_DEFINED */

View File

@ -40,7 +40,7 @@ INCLUDES = -I$(top_builddir)/include -I$(top_srcdir)/include
lib_LIBRARIES = libcpg.a libconfdb.a libevs.a libcfg.a libquorum.a \
libvotequorum.a libpload.a libcoroipcc.a
SHARED_LIBS = $(lib_LIBRARIES:%.a=%.so.$(SONAME))
SHARED_LIBS = $(filter-out libcpg.so.$(SONAME), $(lib_LIBRARIES:%.a=%.so.$(SONAME))) libcpg.so.$(CPG_SONAME)
SHARED_LIBS_SO = $(lib_LIBRARIES:%.a=%.so)
SHARED_LIBS_SO_TWO = $(lib_LIBRARIES:%.a=%.so.$(SOMAJOR))
@ -75,6 +75,11 @@ libconfdb.so.$(SONAME): confdb.o sa-confdb.o libcoroipcc.so.$(SONAME)
ln -sf libconfdb.so.$(SONAME) libconfdb.so
ln -sf libconfdb.so.$(SONAME) libconfdb.so.$(SOMAJOR)
libcpg.so.$(CPG_SONAME): cpg.o libcoroipcc.so.$(SONAME)
$(CC) $(DARWIN_OPTS) $^ -o $@
ln -sf $@ libcpg.so
ln -sf $@ libcpg.so.$(SOMAJOR)
lib%.so.$(SONAME): %.o libcoroipcc.so.$(SONAME)
$(CC) $(DARWIN_OPTS) $^ -o $@
ln -sf lib$*.so.$(SONAME) lib$*.so
@ -95,6 +100,11 @@ libconfdb.so.$(SONAME): confdb.o sa-confdb.o libcoroipcc.so.$(SONAME)
ln -sf libconfdb.so.$(SONAME) libconfdb.so
ln -sf libconfdb.so.$(SONAME) libconfdb.so.$(SOMAJOR)
libcpg.so.$(CPG_SONAME): cpg.o libcoroipcc.so.$(SONAME)
$(LD) $(SOLARIS_OPTS) -G $^ -o $@
ln -sf $@ libcpg.so
ln -sf $@ libcpg.so.$(SOMAJOR)
lib%.so.$(SONAME): %.o libcoroipcc.so.$(SONAME)
$(LD) $(SOLARIS_OPTS) -G $^ -o $@
ln -sf lib$*.so.$(SONAME) lib$*.so
@ -118,6 +128,14 @@ libconfdb.so.$(SONAME): confdb.o sa-confdb.o ../lcr/lcr_ifact.o libcoroipcc.so.$
ln -sf libconfdb.so.$(SONAME) libconfdb.so
ln -sf libconfdb.so.$(SONAME) libconfdb.so.$(SOMAJOR)
libcpg.so.$(CPG_SONAME): cpg.o libcoroipcc.so.$(SONAME)
$(CC) -shared -o $@ \
-Wl,-soname=libcpg.so.$(SOMAJOR) \
-Wl,-version-script=$(srcdir)/libcpg.versions \
$^ $(LDFLAGS) $(AM_LDFLAGS)
ln -sf $@ libcpg.so
ln -sf $@ libcpg.so.$(SOMAJOR)
lib%.so.$(SONAME): %.o libcoroipcc.so.$(SONAME)
$(CC) -shared -o $@ \
-Wl,-soname=lib$*.so.$(SOMAJOR) \

236
lib/cpg.c
View File

@ -5,7 +5,8 @@
*
* All rights reserved.
*
* Author: Patrick Caulfield (pcaulfie@redhat.com)
* Author: Christine Caulfield (ccaulfi@redhat.com)
* Author: Jan Friesse (jfriesse@redhat.com)
*
* This software licensed under BSD license, the text of which follows:
*
@ -51,6 +52,7 @@
#include <corosync/coroipcc.h>
#include <corosync/corodefs.h>
#include <corosync/hdb.h>
#include <corosync/list.h>
#include <corosync/cpg.h>
#include <corosync/ipc_cpg.h>
@ -62,10 +64,49 @@ struct cpg_inst {
int finalize;
cpg_callbacks_t callbacks;
void *context;
struct list_head iteration_list_head;
};
DECLARE_HDB_DATABASE(cpg_handle_t_db,NULL);
struct cpg_iteration_instance_t {
cpg_iteration_handle_t cpg_iteration_handle;
hdb_handle_t conn_handle;
hdb_handle_t executive_iteration_handle;
struct list_head list;
};
DECLARE_HDB_DATABASE(cpg_iteration_handle_t_db,NULL);
/*
* Internal (not visible by API) functions
*/
static void cpg_iteration_instance_finalize (struct cpg_iteration_instance_t *cpg_iteration_instance)
{
list_del (&cpg_iteration_instance->list);
hdb_handle_destroy (&cpg_iteration_handle_t_db, cpg_iteration_instance->cpg_iteration_handle);
}
static void cpg_inst_finalize (struct cpg_inst *cpg_inst, hdb_handle_t handle)
{
struct list_head *iter, *iter_next;
struct cpg_iteration_instance_t *cpg_iteration_instance;
/*
* Traverse thru iteration instances and delete them
*/
for (iter = cpg_inst->iteration_list_head.next; iter != &cpg_inst->iteration_list_head;iter = iter_next) {
iter_next = iter->next;
cpg_iteration_instance = list_entry (iter, struct cpg_iteration_instance_t, list);
cpg_iteration_instance_finalize (cpg_iteration_instance);
}
hdb_handle_destroy (&cpg_handle_t_db, handle);
}
/**
* @defgroup cpg_coroipcc The closed process group API
* @ingroup coroipcc
@ -105,6 +146,8 @@ cs_error_t cpg_initialize (
memcpy (&cpg_inst->callbacks, callbacks, sizeof (cpg_callbacks_t));
}
list_init(&cpg_inst->iteration_list_head);
hdb_handle_put (&cpg_handle_t_db, *handle);
return (CS_OK);
@ -140,8 +183,7 @@ cs_error_t cpg_finalize (
coroipcc_service_disconnect (cpg_inst->handle);
hdb_handle_destroy (&cpg_handle_t_db, handle);
cpg_inst_finalize (cpg_inst, handle);
hdb_handle_put (&cpg_handle_t_db, handle);
return (CPG_OK);
@ -685,4 +727,192 @@ error_exit:
return (error);
}
cs_error_t cpg_iteration_initialize(
cpg_handle_t handle,
cpg_iteration_type_t iteration_type,
const struct cpg_name *group,
cpg_iteration_handle_t *cpg_iteration_handle)
{
cs_error_t error;
struct iovec iov;
struct cpg_inst *cpg_inst;
struct cpg_iteration_instance_t *cpg_iteration_instance;
struct req_lib_cpg_iterationinitialize req_lib_cpg_iterationinitialize;
struct res_lib_cpg_iterationinitialize res_lib_cpg_iterationinitialize;
if (cpg_iteration_handle == NULL) {
return (CS_ERR_INVALID_PARAM);
}
if ((iteration_type == CPG_ITERATION_ONE_GROUP && group == NULL) ||
(iteration_type != CPG_ITERATION_ONE_GROUP && group != NULL)) {
return (CS_ERR_INVALID_PARAM);
}
if (iteration_type != CPG_ITERATION_NAME_ONLY && iteration_type != CPG_ITERATION_ONE_GROUP &&
iteration_type != CPG_ITERATION_ALL) {
return (CS_ERR_INVALID_PARAM);
}
error = hdb_error_to_cs (hdb_handle_get (&cpg_handle_t_db, handle, (void *)&cpg_inst));
if (error != CS_OK) {
return (error);
}
error = hdb_error_to_cs (hdb_handle_create (&cpg_iteration_handle_t_db,
sizeof (struct cpg_iteration_instance_t), cpg_iteration_handle));
if (error != CS_OK) {
goto error_put_cpg_db;
}
error = hdb_error_to_cs (hdb_handle_get (&cpg_iteration_handle_t_db, *cpg_iteration_handle,
(void *)&cpg_iteration_instance));
if (error != CS_OK) {
goto error_destroy;
}
cpg_iteration_instance->conn_handle = cpg_inst->handle;
list_init (&cpg_iteration_instance->list);
req_lib_cpg_iterationinitialize.header.size = sizeof (struct req_lib_cpg_iterationinitialize);
req_lib_cpg_iterationinitialize.header.id = MESSAGE_REQ_CPG_ITERATIONINITIALIZE;
req_lib_cpg_iterationinitialize.iteration_type = iteration_type;
if (group) {
marshall_to_mar_cpg_name_t (&req_lib_cpg_iterationinitialize.group_name, group);
}
iov.iov_base = (void *)&req_lib_cpg_iterationinitialize;
iov.iov_len = sizeof (struct req_lib_cpg_iterationinitialize);
error = coroipcc_msg_send_reply_receive (cpg_inst->handle,
&iov,
1,
&res_lib_cpg_iterationinitialize,
sizeof (struct res_lib_cpg_iterationinitialize));
if (error != CS_OK) {
goto error_put_destroy;
}
cpg_iteration_instance->executive_iteration_handle =
res_lib_cpg_iterationinitialize.iteration_handle;
cpg_iteration_instance->cpg_iteration_handle = *cpg_iteration_handle;
list_add (&cpg_iteration_instance->list, &cpg_inst->iteration_list_head);
hdb_handle_put (&cpg_iteration_handle_t_db, *cpg_iteration_handle);
hdb_handle_put (&cpg_handle_t_db, handle);
return (res_lib_cpg_iterationinitialize.header.error);
error_put_destroy:
hdb_handle_put (&cpg_iteration_handle_t_db, *cpg_iteration_handle);
error_destroy:
hdb_handle_destroy (&cpg_iteration_handle_t_db, *cpg_iteration_handle);
error_put_cpg_db:
hdb_handle_put (&cpg_handle_t_db, handle);
return (error);
}
cs_error_t cpg_iteration_next(
cpg_iteration_handle_t handle,
struct cpg_iteration_description_t *description)
{
cs_error_t error;
struct cpg_iteration_instance_t *cpg_iteration_instance;
struct req_lib_cpg_iterationnext req_lib_cpg_iterationnext;
struct res_lib_cpg_iterationnext *res_lib_cpg_iterationnext;
struct iovec iov;
void *return_address;
if (description == NULL) {
return CS_ERR_INVALID_PARAM;
}
error = hdb_error_to_cs (hdb_handle_get (&cpg_iteration_handle_t_db, handle,
(void *)&cpg_iteration_instance));
if (error != CS_OK) {
goto error_exit;
}
req_lib_cpg_iterationnext.header.size = sizeof (struct req_lib_cpg_iterationnext);
req_lib_cpg_iterationnext.header.id = MESSAGE_REQ_CPG_ITERATIONNEXT;
req_lib_cpg_iterationnext.iteration_handle = cpg_iteration_instance->executive_iteration_handle;
iov.iov_base = (void *)&req_lib_cpg_iterationnext;
iov.iov_len = sizeof (struct req_lib_cpg_iterationnext);
error = coroipcc_msg_send_reply_receive_in_buf_get (cpg_iteration_instance->conn_handle,
&iov,
1,
&return_address);
res_lib_cpg_iterationnext = return_address;
if (error != CS_OK) {
goto error_put;
}
marshall_from_mar_cpg_iteration_description_t(
description,
&res_lib_cpg_iterationnext->description);
error = (error == CS_OK ? res_lib_cpg_iterationnext->header.error : error);
coroipcc_msg_send_reply_receive_in_buf_put(
cpg_iteration_instance->conn_handle);
error_put:
hdb_handle_put (&cpg_iteration_handle_t_db, handle);
error_exit:
return (error);
}
cs_error_t cpg_iteration_finalize (
cpg_iteration_handle_t handle)
{
cs_error_t error;
struct iovec iov;
struct cpg_iteration_instance_t *cpg_iteration_instance;
struct req_lib_cpg_iterationfinalize req_lib_cpg_iterationfinalize;
struct res_lib_cpg_iterationfinalize res_lib_cpg_iterationfinalize;
error = hdb_error_to_cs (hdb_handle_get (&cpg_iteration_handle_t_db, handle,
(void *)&cpg_iteration_instance));
if (error != CS_OK) {
goto error_exit;
}
req_lib_cpg_iterationfinalize.header.size = sizeof (struct req_lib_cpg_iterationfinalize);
req_lib_cpg_iterationfinalize.header.id = MESSAGE_REQ_CPG_ITERATIONFINALIZE;
req_lib_cpg_iterationfinalize.iteration_handle = cpg_iteration_instance->executive_iteration_handle;
iov.iov_base = (void *)&req_lib_cpg_iterationfinalize;
iov.iov_len = sizeof (struct req_lib_cpg_iterationfinalize);
error = coroipcc_msg_send_reply_receive (cpg_iteration_instance->conn_handle,
&iov,
1,
&res_lib_cpg_iterationfinalize,
sizeof (struct req_lib_cpg_iterationfinalize));
if (error != CS_OK) {
goto error_put;
}
cpg_iteration_instance_finalize (cpg_iteration_instance);
hdb_handle_put (&cpg_iteration_handle_t_db, cpg_iteration_instance->cpg_iteration_handle);
return (res_lib_cpg_iterationfinalize.header.error);
error_put:
hdb_handle_put (&cpg_iteration_handle_t_db, handle);
error_exit:
return (error);
}
/** @} */

View File

@ -134,8 +134,18 @@ struct cpg_pd {
uint32_t pid;
enum cpd_state cpd_state;
struct list_head list;
struct list_head iteration_instance_list_head;
};
struct cpg_iteration_instance {
hdb_handle_t handle;
struct list_head list;
struct list_head items_list_head; /* List of process_info */
struct list_head *current_pointer;
};
DECLARE_HDB_DATABASE(cpg_iteration_handle_t_db,NULL);
DECLARE_LIST_INIT(cpg_pd_list_head);
static unsigned int my_member_list[PROCESSOR_COUNT_MAX];
@ -212,6 +222,18 @@ static void message_handler_req_lib_cpg_membership (void *conn,
static void message_handler_req_lib_cpg_local_get (void *conn,
const void *message);
static void message_handler_req_lib_cpg_iteration_initialize (
void *conn,
const void *message);
static void message_handler_req_lib_cpg_iteration_next (
void *conn,
const void *message);
static void message_handler_req_lib_cpg_iteration_finalize (
void *conn,
const void *message);
static int cpg_node_joinleave_send (unsigned int pid, const mar_cpg_name_t *group_name, int fn, int reason);
static int cpg_exec_send_downlist(void);
@ -253,7 +275,19 @@ static struct corosync_lib_handler cpg_lib_engine[] =
{ /* 4 */
.lib_handler_fn = message_handler_req_lib_cpg_local_get,
.flow_control = CS_LIB_FLOW_CONTROL_NOT_REQUIRED
}
},
{ /* 5 */
.lib_handler_fn = message_handler_req_lib_cpg_iteration_initialize,
.flow_control = CS_LIB_FLOW_CONTROL_NOT_REQUIRED
},
{ /* 6 */
.lib_handler_fn = message_handler_req_lib_cpg_iteration_next,
.flow_control = CS_LIB_FLOW_CONTROL_NOT_REQUIRED
},
{ /* 7 */
.lib_handler_fn = message_handler_req_lib_cpg_iteration_finalize,
.flow_control = CS_LIB_FLOW_CONTROL_NOT_REQUIRED
},
};
static struct corosync_exec_handler cpg_exec_engine[] =
@ -572,6 +606,45 @@ static int cpg_exec_init_fn (struct corosync_api_v1 *corosync_api)
return (0);
}
static void cpg_iteration_instance_finalize (struct cpg_iteration_instance *cpg_iteration_instance)
{
struct list_head *iter, *iter_next;
struct process_info *pi;
for (iter = cpg_iteration_instance->items_list_head.next;
iter != &cpg_iteration_instance->items_list_head;
iter = iter_next) {
iter_next = iter->next;
pi = list_entry (iter, struct process_info, list);
list_del (&pi->list);
free (pi);
}
list_del (&cpg_iteration_instance->list);
hdb_handle_destroy (&cpg_iteration_handle_t_db, cpg_iteration_instance->handle);
}
static void cpg_pd_finalize (struct cpg_pd *cpd)
{
struct list_head *iter, *iter_next;
struct cpg_iteration_instance *cpii;
for (iter = cpd->iteration_instance_list_head.next;
iter != &cpd->iteration_instance_list_head;
iter = iter_next) {
iter_next = iter->next;
cpii = list_entry (iter, struct cpg_iteration_instance, list);
cpg_iteration_instance_finalize (cpii);
}
list_del (&cpd->list);
}
static int cpg_lib_exit_fn (void *conn)
{
struct cpg_pd *cpd = (struct cpg_pd *)api->ipc_private_data_get (conn);
@ -582,7 +655,9 @@ static int cpg_lib_exit_fn (void *conn)
cpg_node_joinleave_send (cpd->pid, &cpd->group_name,
MESSAGE_REQ_EXEC_CPG_PROCLEAVE, CONFCHG_CPG_REASON_LEAVE);
}
list_del (&cpd->list);
cpg_pd_finalize (cpd);
api->ipc_refcnt_dec (conn);
return (0);
}
@ -958,6 +1033,8 @@ static int cpg_lib_init_fn (void *conn)
cpd->conn = conn;
list_add (&cpd->list, &cpg_pd_list_head);
list_init (&cpd->iteration_instance_list_head);
api->ipc_refcnt_inc (conn);
log_printf(LOGSYS_LEVEL_DEBUG, "lib_init_fn: conn=%p, cpd=%p\n", conn, cpd);
return (0);
@ -1157,3 +1234,237 @@ static void message_handler_req_lib_cpg_local_get (void *conn,
api->ipc_response_send (conn, &res_lib_cpg_local_get,
sizeof (res_lib_cpg_local_get));
}
static void message_handler_req_lib_cpg_iteration_initialize (
void *conn,
const void *message)
{
const struct req_lib_cpg_iterationinitialize *req_lib_cpg_iterationinitialize = message;
struct cpg_pd *cpd = (struct cpg_pd *)api->ipc_private_data_get (conn);
hdb_handle_t cpg_iteration_handle;
struct res_lib_cpg_iterationinitialize res_lib_cpg_iterationinitialize;
struct list_head *iter, *iter2;
struct cpg_iteration_instance *cpg_iteration_instance;
cs_error_t error = CS_OK;
int res;
log_printf (LOGSYS_LEVEL_DEBUG, "cpg iteration initialize\n");
/* Because between calling this function and *next can be some operations which will
* change list, we must do full copy.
*/
/*
* Create new iteration instance
*/
res = hdb_handle_create (&cpg_iteration_handle_t_db, sizeof (struct cpg_iteration_instance),
&cpg_iteration_handle);
if (res != 0) {
error = CS_ERR_NO_MEMORY;
goto response_send;
}
res = hdb_handle_get (&cpg_iteration_handle_t_db, cpg_iteration_handle, (void *)&cpg_iteration_instance);
if (res != 0) {
error = CS_ERR_BAD_HANDLE;
goto error_destroy;
}
list_init (&cpg_iteration_instance->items_list_head);
cpg_iteration_instance->handle = cpg_iteration_handle;
/*
* Create copy of process_info list "grouped by" group name
*/
for (iter = process_info_list_head.next; iter != &process_info_list_head; iter = iter->next) {
struct process_info *pi = list_entry (iter, struct process_info, list);
struct process_info *new_pi;
if (req_lib_cpg_iterationinitialize->iteration_type == CPG_ITERATION_NAME_ONLY) {
/*
* Try to find processed group name in our list new list
*/
int found = 0;
for (iter2 = cpg_iteration_instance->items_list_head.next;
iter2 != &cpg_iteration_instance->items_list_head;
iter2 = iter2->next) {
struct process_info *pi2 = list_entry (iter2, struct process_info, list);
if (mar_name_compare (&pi2->group, &pi->group) == 0) {
found = 1;
break;
}
}
if (found) {
/*
* We have this name in list -> don't add
*/
continue ;
}
} else if (req_lib_cpg_iterationinitialize->iteration_type == CPG_ITERATION_ONE_GROUP) {
/*
* Test pi group name with request
*/
if (mar_name_compare (&pi->group, &req_lib_cpg_iterationinitialize->group_name) != 0)
/*
* Not same -> don't add
*/
continue ;
}
new_pi = malloc (sizeof (struct process_info));
if (!new_pi) {
log_printf(LOGSYS_LEVEL_WARNING, "Unable to allocate process_info struct");
error = CS_ERR_NO_MEMORY;
goto error_put_destroy;
}
memcpy (new_pi, pi, sizeof (struct process_info));
list_init (&new_pi->list);
if (req_lib_cpg_iterationinitialize->iteration_type == CPG_ITERATION_NAME_ONLY) {
/*
* pid and nodeid -> undefined
*/
new_pi->pid = new_pi->nodeid = 0;
}
/*
* We will return list "grouped" by "group name", so try to find right place to add
*/
for (iter2 = cpg_iteration_instance->items_list_head.next;
iter2 != &cpg_iteration_instance->items_list_head;
iter2 = iter2->next) {
struct process_info *pi2 = list_entry (iter2, struct process_info, list);
if (mar_name_compare (&pi2->group, &pi->group) == 0) {
break;
}
}
list_add (&new_pi->list, iter2);
}
/*
* Now we have a full "grouped by" copy of process_info list
*/
/*
* Add instance to current cpd list
*/
list_init (&cpg_iteration_instance->list);
list_add (&cpg_iteration_instance->list, &cpd->iteration_instance_list_head);
cpg_iteration_instance->current_pointer = &cpg_iteration_instance->items_list_head;
error_put_destroy:
hdb_handle_put (&cpg_iteration_handle_t_db, cpg_iteration_handle);
error_destroy:
if (error != CS_OK) {
hdb_handle_destroy (&cpg_iteration_handle_t_db, cpg_iteration_handle);
}
response_send:
res_lib_cpg_iterationinitialize.header.size = sizeof (res_lib_cpg_iterationinitialize);
res_lib_cpg_iterationinitialize.header.id = MESSAGE_RES_CPG_ITERATIONINITIALIZE;
res_lib_cpg_iterationinitialize.header.error = error;
res_lib_cpg_iterationinitialize.iteration_handle = cpg_iteration_handle;
api->ipc_response_send (conn, &res_lib_cpg_iterationinitialize,
sizeof (res_lib_cpg_iterationinitialize));
}
static void message_handler_req_lib_cpg_iteration_next (
void *conn,
const void *message)
{
const struct req_lib_cpg_iterationnext *req_lib_cpg_iterationnext = message;
struct res_lib_cpg_iterationnext res_lib_cpg_iterationnext;
struct cpg_iteration_instance *cpg_iteration_instance;
cs_error_t error = CS_OK;
int res;
struct process_info *pi;
log_printf (LOGSYS_LEVEL_DEBUG, "cpg iteration next\n");
res = hdb_handle_get (&cpg_iteration_handle_t_db,
req_lib_cpg_iterationnext->iteration_handle,
(void *)&cpg_iteration_instance);
if (res != 0) {
error = CS_ERR_LIBRARY;
goto error_exit;
}
assert (cpg_iteration_instance);
cpg_iteration_instance->current_pointer = cpg_iteration_instance->current_pointer->next;
if (cpg_iteration_instance->current_pointer == &cpg_iteration_instance->items_list_head) {
error = CS_ERR_NO_SECTIONS;
goto error_put;
}
pi = list_entry (cpg_iteration_instance->current_pointer, struct process_info, list);
/*
* Copy iteration data
*/
res_lib_cpg_iterationnext.description.nodeid = pi->nodeid;
res_lib_cpg_iterationnext.description.pid = pi->pid;
memcpy (&res_lib_cpg_iterationnext.description.group,
&pi->group,
sizeof (mar_cpg_name_t));
error_put:
hdb_handle_put (&cpg_iteration_handle_t_db, req_lib_cpg_iterationnext->iteration_handle);
error_exit:
res_lib_cpg_iterationnext.header.size = sizeof (res_lib_cpg_iterationnext);
res_lib_cpg_iterationnext.header.id = MESSAGE_RES_CPG_ITERATIONNEXT;
res_lib_cpg_iterationnext.header.error = error;
api->ipc_response_send (conn, &res_lib_cpg_iterationnext,
sizeof (res_lib_cpg_iterationnext));
}
static void message_handler_req_lib_cpg_iteration_finalize (
void *conn,
const void *message)
{
const struct req_lib_cpg_iterationfinalize *req_lib_cpg_iterationfinalize = message;
struct res_lib_cpg_iterationfinalize res_lib_cpg_iterationfinalize;
struct cpg_iteration_instance *cpg_iteration_instance;
cs_error_t error = CS_OK;
int res;
log_printf (LOGSYS_LEVEL_DEBUG, "cpg iteration finalize\n");
res = hdb_handle_get (&cpg_iteration_handle_t_db,
req_lib_cpg_iterationfinalize->iteration_handle,
(void *)&cpg_iteration_instance);
if (res != 0) {
error = CS_ERR_LIBRARY;
goto error_exit;
}
assert (cpg_iteration_instance);
cpg_iteration_instance_finalize (cpg_iteration_instance);
hdb_handle_put (&cpg_iteration_handle_t_db, cpg_iteration_instance->handle);
error_exit:
res_lib_cpg_iterationfinalize.header.size = sizeof (res_lib_cpg_iterationfinalize);
res_lib_cpg_iterationfinalize.header.id = MESSAGE_RES_CPG_ITERATIONFINALIZE;
res_lib_cpg_iterationfinalize.header.error = error;
api->ipc_response_send (conn, &res_lib_cpg_iterationfinalize,
sizeof (res_lib_cpg_iterationfinalize));
}