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Diffstat (limited to 'tests/test_functions.c')
| -rw-r--r-- | tests/test_functions.c | 896 |
1 files changed, 896 insertions, 0 deletions
diff --git a/tests/test_functions.c b/tests/test_functions.c new file mode 100644 index 0000000..fc64934 --- /dev/null +++ b/tests/test_functions.c @@ -0,0 +1,896 @@ +/* + * Copyright IBM Corporation. 2008 + * + * Author: Sudhir Kumar <skumar@linux.vnet.ibm.com> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of version 2.1 of the GNU Lesser General Public License + * as published by the Free Software Foundation. + * + * This program is distributed in the hope that it would be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. + * + * Description: This file contains the functions for testing libcgroup apis. + */ + +#include "libcgrouptest.h" + +/* The messages that may be useful to the user */ +char info[][SIZE] = { + " Parameter nullcgroup\n", /* NULLGRP */ + " Parameter commoncgroup\n", /* COMMONGRP */ + " Parameter not created group\n", /* NOTCRTDGRP */ + " Parameter same cgroup\n", /* SAMEGRP */ + " Task found in group/s\n", /* TASKINGRP */ + " Task not found in group/s\n", /* TASKNOTINGRP */ + " Task not found in all groups\n", /* TASKNOTINANYGRP */ + " group found in filesystem\n", /* GRPINFS */ + " group not found in filesystem\n", /* GRPNOTINFS */ + " group found under both controllers\n", /* GRPINBOTHCTLS */ + " group not found under second controller\n", /* GRPNOTIN2NDCTL */ + " group not found under first controller\n", /* GRPNOTIN1STCTL */ + " group modified under both controllers\n", /* GRPMODINBOTHCTLS */ + " group not modified under second controller\n",/* GRPNOTMODIN2NDCTL */ + " group not modified under any controller\n", /* GRPNOTMODINANYCTL */ + " Group deleted from filesystem\n", /* GRPDELETEDINFS */ + " Group not deleted from filesystem\n", /* GRPNOTDELETEDINFS */ + " Group not deleted globally\n", /* GRPNOTDELETEDGLOBALY */ + /* In case there is no extra info messages to be printed */ + "\n", /* NOMESSAGE */ +}; + +/** + * Tests the cgroup_init_cgroup() api under different scenarios + * @param retcode error code in case any error is expected from api + * @param i the test number + */ +void test_cgroup_init(int retcode, int i) +{ + int retval; + + retval = cgroup_init(); + if (retval == retcode) + message(i, PASS, "init()\t", retval, info[NOMESSAGE]); + else + message(i, FAIL, "init()", retval, info[NOMESSAGE]); +} + +/** + * Tests the cgroup_attach_cgroup() api under different scenarios + * @param retcode error code in case any error is expected from api + * @param cgrp the group to assign the task to + * @param group1 the name of the group under first (single) mountpoint + * @param group2 the name of the group under 2nd moutpoint for multimount + * @param i the test number + * @param k the message enum number to print the useful message + */ +void test_cgroup_attach_task(int retcode, struct cgroup *cgrp, + const char *group1, const char *group2, int k, int i) +{ + int retval; + char tasksfile[FILENAME_MAX], tasksfile2[FILENAME_MAX]; + /* Check, In case some error is expected due to a negative scenario */ + if (retcode) { + retval = cgroup_attach_task(cgrp); + if (retval == retcode) + message(i, PASS, "attach_task()", retval, info[k]); + else + message(i, FAIL, "attach_task()", retval, info[k]); + + return; + } + + /* Now there is no error and it is a genuine call */ + retval = cgroup_attach_task(cgrp); + /* API returned success, so perform check */ + if (retval == 0) { + build_path(tasksfile, mountpoint, + group1, "tasks"); + + if (check_task(tasksfile)) { + if (fs_mounted == 2) { + /* multiple mounts */ + build_path(tasksfile2, mountpoint2, + group2, "tasks"); + if (check_task(tasksfile2)) { + message(i, PASS, "attach_task()", + retval, info[TASKINGRP]); + } else { + message(i, FAIL, "attach_task()", + retval, info[TASKNOTINANYGRP]); + } + } else { + /* single mount */ + message(i, PASS, "attach_task()", + retval, info[TASKINGRP]); + } + } else { + message(i, FAIL, "attach_task()", retval, + info[TASKNOTINGRP]); + } + } else { + message(i, FAIL, "attach_task()", retval, (char *)"\n"); + } +} + +/** + * This function creates a cgroup data structure + * This function is a bit ugly for now and need to be changed + * @param ctl the controller under which group is to be created + * @param grpname the name of the group + * @param value_type which value out of four types + * @param struct cval the control value structure + * @param struct ids the permissions struct + * @param the test number + */ +struct cgroup *create_new_cgroup_ds(int ctl, const char *grpname, + int value_type, struct cntl_val_t cval, struct uid_gid_t ids, int i) +{ + int retval; + char group[FILENAME_MAX]; + char controller_name[FILENAME_MAX], control_file[FILENAME_MAX]; + + strncpy(group, grpname, sizeof(group)); + retval = set_controller(ctl, controller_name, control_file); + if (retval) { + fprintf(stderr, "Setting controller failled\n"); + return NULL; + } + + switch (ctl) { + /* control values are controller specific, so will be set + * accordingly from the config file */ + case CPU: + strncpy(cval.val_string, "260000", sizeof(cval.val_string)); + break; + + case MEMORY: + strncpy(cval.val_string, "7000064", sizeof(cval.val_string)); + break; + + /* To be added for other controllers */ + default: + printf("Invalid controller name passed. Setting control value" + " failed. Dependent tests may fail\n"); + return NULL; + break; + } + + return new_cgroup(group, controller_name, control_file, + value_type, cval, ids, i); +} + +/** + * Tests the cgroup_create_cgroup() api under different scenarios + * @param retcode error code in case any error is expected from api + * @param cgrp the group to be created + * @param name the name of the group + * @param common to test if group will be created under one or both mountpoints + * @param mpnt to test if group under mountpoint or mountpoint2 + * @param ign parameter for api if to ignore the ownership + * @param the test number + */ +void test_cgroup_create_cgroup(int retcode, struct cgroup *cgrp, + const char *name, int common, int mpnt, int ign, int i) +{ + int retval; + char path1_group[FILENAME_MAX], path2_group[FILENAME_MAX]; + /* Check, In case some error is expected due to a negative scenario */ + if (retcode) { + retval = cgroup_create_cgroup(cgrp, ign); + if (retval == retcode) + message(i, PASS, "create_cgroup()", retval, + info[NOMESSAGE]); + else + message(i, FAIL, "create_cgroup()", retval, + info[NOMESSAGE]); + + return; + } + + /* Now there is no error and it is a genuine call */ + retval = cgroup_create_cgroup(cgrp, ign); + if (retval) { + message(i, FAIL, "create_cgroup()", retval, info[NOMESSAGE]); + return; + } + + /* Let us now check if the group exist in file system */ + if (!common) { + /* group only under one mountpoint */ + if (mpnt == 1) + /* group under mountpoint */ + build_path(path1_group, mountpoint, name, NULL); + else + /* group under mountpoint2 */ + build_path(path1_group, mountpoint2, name, NULL); + + if (group_exist(path1_group) == 0) + message(i, PASS, "create_cgroup()", retval, + info[GRPINFS]); + else + message(i, FAIL, "create_cgroup()", retval, + info[GRPNOTINFS]); + + /* group under both mountpoints */ + } else { + /* check if the group exists under both controllers */ + build_path(path1_group, mountpoint, name, NULL); + if (group_exist(path1_group) == 0) { + build_path(path2_group, mountpoint2, name, NULL); + + if (group_exist(path2_group) == 0) + message(i, PASS, "create_cgroup()", + retval, info[GRPINBOTHCTLS]); + else + message(i, FAIL, "create_cgroup()", + retval, info[GRPNOTIN2NDCTL]); + } else { + message(i, FAIL, "create_cgroup()", retval, + info[GRPNOTIN1STCTL]); + } + } + + return; +} + +/** + * Tests the cgroup_delete_cgroup() api under different scenarios + * @param retcode error code in case any error is expected from api + * @param cgrp the group to be deleted + * @param name the name of the group + * @param common to test if group was created under one or both mountpoints + * @param mpnt to test if group under mountpoint or mountpoint2 + * @param ign parameter for api if to ignore the ownership + * @param the test number + */ +void test_cgroup_delete_cgroup(int retcode, struct cgroup *cgrp, + const char *name, int common, int mpnt, int ign, int i) +{ + int retval; + char path1_group[FILENAME_MAX], path2_group[FILENAME_MAX]; + /* Check, In case some error is expected due to a negative scenario */ + if (retcode) { + retval = cgroup_delete_cgroup(cgrp, ign); + if (retval == retcode) + message(i, PASS, "delete_cgroup()", retval, + info[NOMESSAGE]); + else + message(i, FAIL, "delete_cgroup()", retval, + info[NOMESSAGE]); + + return; + } + + /* Now there is no error and it is a genuine call */ + retval = cgroup_delete_cgroup(cgrp, ign); + if (retval) { + message(i, FAIL, "delete_cgroup()", retval, info[NOMESSAGE]); + return; + } + + /* Let us now check if the group has been deleted from file system */ + if (!common) { + /* check only under one mountpoint */ + if (mpnt == 1) + /* check group under mountpoint */ + build_path(path1_group, mountpoint, name, NULL); + else + /* check group under mountpoint2 */ + build_path(path1_group, mountpoint2, name, NULL); + + if (group_exist(path1_group) == -1) + message(i, PASS, "delete_cgroup()", retval, + info[GRPDELETEDINFS]); + else + message(i, FAIL, "delete_cgroup()", retval, + info[GRPNOTDELETEDINFS]); + + } else { + /* check group under both mountpoints */ + /* Check if the group deleted under both mountpoints */ + build_path(path1_group, mountpoint, name, NULL); + if (group_exist(path1_group) == -1) { + build_path(path2_group, mountpoint2, name, NULL); + + if (group_exist(path2_group) == -1) + message(i, PASS, "delete_cgroup()", + retval, info[GRPDELETEDINFS]); + else + message(i, FAIL, "delete_cgroup()", + retval, info[GRPNOTDELETEDGLOBALY]); + } else { + message(i, FAIL, "delete_cgroup()", retval, + info[GRPNOTDELETEDINFS]); + } + } + +} + +/** + * The function tests if the given controller is enabled in kernel + * @param name the name of the controller to be checked + * @param exist set to 1 if the controller exists + */ +void get_controllers(const char *name, int *exist) +{ + int hierarchy, num_cgroups, enabled; + FILE *fd; + char subsys_name[FILENAME_MAX]; + + fd = fopen("/proc/cgroups", "r"); + if (!fd) + return; + + while (!feof(fd)) { + fscanf(fd, "%s, %d, %d, %d", subsys_name, + &hierarchy, &num_cgroups, &enabled); + if (strncmp(name, subsys_name, sizeof(*name)) == 0) + *exist = 1; + } + + fclose(fd); +} + +/** + * This function tests if the given group exists in filesystem + * @param path_group path to the group to be tested for existence + */ +int group_exist(char *path_group) +{ + int ret; + ret = open(path_group, O_DIRECTORY); + if (ret == -1) + return ret; + return 0; +} + +/** + * Sets the controller name and control file name + * @param controller the enum for the name of the controller + * @param controller_name name of the controller + * @param control_file corresponding control file + */ +int set_controller(int controller, char *controller_name, char *control_file) +{ + switch (controller) { + case MEMORY: + if (memory == 0) + return 1; + + strncpy(controller_name, "memory", FILENAME_MAX); + strncpy(control_file, "memory.limit_in_bytes", FILENAME_MAX); + return 0; + break; + + case CPU: + if (cpu == 0) + return 1; + + strncpy(controller_name, "cpu", FILENAME_MAX); + strncpy(control_file, "cpu.shares", FILENAME_MAX); + return 0; + break; + + case CPUSET: + strncpy(controller_name, "cpuset", FILENAME_MAX); + strncpy(control_file, "cpuset.cpus", FILENAME_MAX); + return 0; + break; + /* Future controllers can be added here */ + + default: + printf("Invalid controller name passed. Setting controller" + " failed. Dependent tests may fail\n"); + return 1; + break; + } +} + +/** + * Tests if a group has been modified + * @param path_control_file path to the control file of the controller + * @param value_type which value out of four types + * @param struct cval the control value structure + */ +int group_modified(char *path_control_file, int value_type, + struct cntl_val_t cval) +{ + bool bool_val; + int64_t int64_val; + u_int64_t uint64_val; + /* 100 char looks ok for a control value as string */ + char string_val[100]; + FILE *fd; + int error = 1; + + fd = fopen(path_control_file, "r"); + if (!fd) { + fprintf(stderr, "Error in opening %s\n", path_control_file); + fprintf(stderr, "Skipping modified values check....\n"); + return 1; + } + + switch (value_type) { + + case BOOL: + fscanf(fd, "%d", &bool_val); + if (bool_val == cval.val_bool) + error = 0; + break; + case INT64: + fscanf(fd, "%lld", &int64_val); + if (int64_val == cval.val_int64) + error = 0; + break; + case UINT64: + fscanf(fd, "%llu", &uint64_val); + if (uint64_val == cval.val_uint64) + error = 0; + break; + case STRING: + fscanf(fd, "%s", string_val); + if (!strncmp(string_val, cval.val_string, strlen(string_val))) + error = 0; + break; + default: + fprintf(stderr, "Wrong value_type passed " + "in group_modified()\n"); + fprintf(stderr, "Skipping modified values check....\n"); + /* Can not report test result as failure */ + error = 0; + break; + } + + fclose(fd); + return error; +} + +/** + * Adds the control value to a controller using wrapper apis + * @param newcontroller the controller to be added the value to + * @param control_file name of the control file of the controller + * @param wr the name of wrapper api + * @param value_type which value out of four types + * @param struct cval the control value structure + */ +int add_control_value(struct cgroup_controller *newcontroller, + char *control_file, char *wr, int value_type, struct cntl_val_t cval) +{ + int retval; + + switch (value_type) { + + case BOOL: + retval = cgroup_add_value_bool(newcontroller, + control_file, cval.val_bool); + snprintf(wr, SIZE, "add_value_bool()"); + break; + case INT64: + retval = cgroup_add_value_int64(newcontroller, + control_file, cval.val_int64); + snprintf(wr, SIZE, "add_value_int64()"); + break; + case UINT64: + retval = cgroup_add_value_uint64(newcontroller, + control_file, cval.val_uint64); + snprintf(wr, SIZE, "add_value_uint64()"); + break; + case STRING: + retval = cgroup_add_value_string(newcontroller, + control_file, cval.val_string); + snprintf(wr, SIZE, "add_value_string()"); + break; + default: + printf("ERROR: wrong value in add_control_value()\n"); + return 1; + break; + } + return retval; +} + +/** + * This function creates and returns a cgroup data structure + * @param group the name of the group + * @param controller_name the name of the controller to be added to the group + * @param control_file name of the control file of the controller + * @param value_type which value out of four types + * @param struct cval the control value structure + * @param struct ids the permissions struct + * @param the test number + */ +struct cgroup *new_cgroup(char *group, char *controller_name, + char *control_file, int value_type, + struct cntl_val_t cval, struct uid_gid_t ids, int i) +{ + int retval; + /* Names of wrapper apis */ + char wr[SIZE]; + struct cgroup *newcgroup; + struct cgroup_controller *newcontroller; + + newcgroup = cgroup_new_cgroup(group); + + if (newcgroup) { + retval = cgroup_set_uid_gid(newcgroup, ids.tasks_uid, + ids.tasks_gid, ids.control_uid, ids.control_gid); + + if (retval) { + snprintf(wr, SIZE, "set_uid_gid()"); + message(i++, FAIL, wr, retval, info[NOMESSAGE]); + } + + newcontroller = cgroup_add_controller(newcgroup, + controller_name); + if (newcontroller) { + retval = add_control_value(newcontroller, + control_file, wr, value_type, cval); + + if (!retval) { + message(i++, PASS, "new_cgroup()", + retval, info[NOMESSAGE]); + } else { + message(i++, FAIL, wr, retval , + info[NOMESSAGE]); + return NULL; + } + } else { + /* Since these wrappers do not return an int so -1 */ + message(i++, FAIL, "add_controller", -1, + info[NOMESSAGE]); + return NULL; + } + } else { + message(i++, FAIL, "new_cgroup", -1, info[NOMESSAGE]); + return NULL; + } + return newcgroup; +} + +/** + * Checks if the cgroup filesystem has been mounted + * @param multimnt to decide if check is for single mount or multimount + */ +int check_fsmounted(int multimnt) +{ + int count = 0; + int ret = 1; + struct mntent *entry = NULL, *tmp_entry = NULL; + /* Need a better mechanism to decide memory allocation size here */ + char entry_buffer[FILENAME_MAX * 4]; + FILE *proc_file = NULL; + + tmp_entry = (struct mntent *) malloc(sizeof(struct mntent)); + if (!tmp_entry) { + perror("Error: failled to mallloc for mntent\n"); + ret = errno; + goto error; + } + + proc_file = fopen("/proc/mounts", "r"); + if (!proc_file) { + printf("Error in opening /proc/mounts.\n"); + ret = errno; + goto error; + } + while ((entry = getmntent_r(proc_file, tmp_entry, entry_buffer, + FILENAME_MAX*4)) != NULL) { + if (!strncmp(entry->mnt_type, "cgroup", strlen("cgroup"))) { + count++; + if (multimnt) { + if (count >= 2) { + printf("sanity check pass. %s\n", + entry->mnt_type); + ret = 0; + goto error; + } + } else { + printf("sanity check pass. %s\n", + entry->mnt_type); + ret = 0; + goto error; + } + } + } +error: + if (tmp_entry) + free(tmp_entry); + if (proc_file) + fclose(proc_file); + return ret; +} + +/** + * Checks if the current task belongs to the given tasks file + * @param tasksfile the task file to be tested for the task + */ +int check_task(char *tasksfile) +{ + FILE *file; + pid_t curr_tid, tid; + int pass = 0; + + file = fopen(tasksfile, "r"); + if (!file) { + printf("ERROR: in opening %s\n", tasksfile); + printf("Exiting without running other testcases in this set\n"); + exit(1); + } + + curr_tid = cgrouptest_gettid(); + while (!feof(file)) { + fscanf(file, "%u", &tid); + if (tid == curr_tid) { + pass = 1; + break; + } + } + fclose(file); + + return pass; +} + +/** + * Prints the test result in a readable format with some verbose messages + * @param num the test number + * @param pass test passed or failed + * @param api the name of the api tested + * @param retval the return value of the api + * @param extra the extra message to the user about the scenario tested + */ +void message(int num, int pass, const char *api, int retval, char *extra) +{ + char res[10]; + char buf[2*SIZE]; + if (pass) + strncpy(res, "PASS :", 10); + else + strncpy(res, "FAIL :", 10); + + /* Populate message buffer for the api */ + snprintf(buf, sizeof(buf), "cgroup_%s\t\t Ret Value = ", api); + fprintf(stdout, "TEST%2d:%s %s%d\t%s", num, res, buf, retval, extra); +} + +/** + * Builds the path to target file/group + * @param target to write the built path to + * @param mountpoint for which mountpoint the path to be built + * @param group the name of the group (directory) + * @param file what file under the group + */ +void +build_path(char *target, char *mountpoint, const char *group, const char *file) +{ + if (!target) + return; + + strncpy(target, mountpoint, FILENAME_MAX); + + if (group) { + strncat(target, "/", FILENAME_MAX - strlen(target)); + strncat(target, group, FILENAME_MAX - strlen(target)); + } + + if (file) { + strncat(target, "/", FILENAME_MAX - strlen(target)); + strncat(target, file, FILENAME_MAX - strlen(target)); + } +} + +/** + * Tests the cgroup_compare_cgroup() api under different scenarios + * @param ctl1 controller 1 to be used for testing + * @param ctl2 controller 1 to be used for testing + * @param the test number + */ +void test_cgroup_compare_cgroup(int ctl1, int ctl2, int i) +{ + int retval; + + struct cntl_val_t cval; + cval.val_int64 = 0; + cval.val_uint64 = 0; + cval.val_bool = 0; + strcpy(cval.val_string, "5000"); + + struct cgroup *cgroup1 = NULL, *cgroup2 = NULL; + struct cgroup_controller *controller = NULL; + char controller_name[FILENAME_MAX], control_file[FILENAME_MAX]; + char wr[SIZE], extra[] = "in cgroup_compare_cgroup"; + + retval = cgroup_compare_cgroup(NULL, NULL); + if (retval) + message(i++, PASS, "compare_cgroup()", retval, info[NULLGRP]); + else + message(i++, FAIL, "compare_cgroup()", retval, info[NULLGRP]); + + cgroup1 = cgroup_new_cgroup("testgroup"); + cgroup2 = cgroup_new_cgroup("testgroup"); + cgroup_set_uid_gid(cgroup1, 0, 0, 0, 0); + cgroup_set_uid_gid(cgroup2, 0, 0, 0, 0); + + retval = set_controller(ctl1, controller_name, control_file); + + controller = cgroup_add_controller(cgroup1, controller_name); + if (controller) { + retval = add_control_value(controller, + control_file, wr, STRING, cval); + if (retval) + message(i++, FAIL, wr, retval, extra); + } + + controller = cgroup_add_controller(cgroup2, controller_name); + if (controller) { + retval = add_control_value(controller, + control_file, wr, STRING, cval); + if (retval) + message(i++, FAIL, wr, retval, extra); + } + + retval = cgroup_compare_cgroup(cgroup1, cgroup2); + if (retval) + message(i++, FAIL, "compare_cgroup()", retval, info[NOMESSAGE]); + else + message(i++, PASS, "compare_cgroup()", retval, info[NOMESSAGE]); + + /* Test the api by putting diff number of controllers in cgroups */ + retval = set_controller(ctl2, controller_name, control_file); + controller = cgroup_add_controller(cgroup2, controller_name); + if (controller) { + retval = add_control_value(controller, + control_file, wr, STRING, cval); + if (retval) + message(i++, FAIL, wr, retval, extra); + } + + retval = cgroup_compare_cgroup(cgroup1, cgroup2); + if (retval == ECGROUPNOTEQUAL) + message(i++, PASS, "compare_cgroup()", retval, info[NOMESSAGE]); + else + message(i++, FAIL, "compare_cgroup()", retval, info[NOMESSAGE]); + + cgroup_free(&cgroup1); + cgroup_free(&cgroup2); +} + +/** + * Tests the cgroup_get_cgroup() api under different scenarios + * @param ctl1 controller 1 to be used for testing + * @param ctl2 controller 1 to be used for testing + * @param struct ids the permissions struct + * @param the test number + */ +void test_cgroup_get_cgroup(int ctl1, int ctl2, struct uid_gid_t ids, int i) +{ + struct cgroup *cgroup_filled = NULL, *cgroup_a = NULL, *cgroup_b = NULL; + struct cgroup_controller *controller = NULL; + char controller_name[FILENAME_MAX], control_file[FILENAME_MAX]; + struct cntl_val_t cval = {0, 0, 0, "5000"}; + int ret; + + /* + * No need to test the next 3 scenarios separately for Multimnt + * so testing them only under single mount + */ + if (fs_mounted == FS_MOUNTED) { + /* 1. Test with nullcgroup first */ + ret = cgroup_get_cgroup(NULL); + if (ret == ECGROUPNOTALLOWED) + message(i++, PASS, "get_cgroup()", ret, info[NULLGRP]); + else + message(i++, FAIL, "get_cgroup()", ret, info[NULLGRP]); + + /* 2. Test with invalid name filled cgroup(non existing) */ + cgroup_filled = cgroup_new_cgroup("nogroup"); + if (!cgroup_filled) + message(i++, FAIL, "new_cgroup()", 0, info[NOMESSAGE]); + + ret = cgroup_get_cgroup(cgroup_filled); + if (ret) + message(i++, PASS, "get_cgroup()", ret, + info[NOTCRTDGRP]); + else + message(i++, FAIL, "get_cgroup()", ret, + info[NOTCRTDGRP]); + /* Free the allocated cgroup before reallocation */ + cgroup_free(&cgroup_filled); + + /* 3. + * Test with name filled cgroup. Ensure the group group1 exists + * in the filesystem before calling this test function + */ + cgroup_filled = cgroup_new_cgroup("group1"); + if (!cgroup_filled) + message(i++, FAIL, "new_cgroup()", 0, info[NOMESSAGE]); + + ret = cgroup_get_cgroup(cgroup_filled); + if (!ret) + message(i++, PASS, "get_cgroup()", ret, + info[NOMESSAGE]); + else + message(i++, FAIL, "get_cgroup()", ret, + info[NOMESSAGE]); + } + + /* SINGLE & MULTI MOUNT: Create, get and compare a cgroup */ + + /* get cgroup_a ds and create group_a in filesystem */ + cgroup_a = create_new_cgroup_ds(ctl1, "group_a", STRING, cval, ids, 0); + if (fs_mounted == FS_MULTI_MOUNTED) { + /* Create under another controller also */ + ret = set_controller(ctl2, controller_name, control_file); + controller = cgroup_add_controller(cgroup_a, controller_name); + } + test_cgroup_create_cgroup(0, cgroup_a, "group_a", 0, 1, 1, 00); + + /* create group_b ds to be filled by cgroup_get_cgroup */ + cgroup_b = cgroup_new_cgroup("group_a"); + if (!cgroup_b) + message(i++, FAIL, "new_cgroup()", 0, info[NOMESSAGE]); + /* Fill the ds and compare the two */ + ret = cgroup_get_cgroup(cgroup_b); + if (!ret) { + ret = cgroup_compare_cgroup(cgroup_a, cgroup_b); + if (ret == 0) + message(i++, PASS, "get_cgroup()", ret, info[SAMEGRP]); + else + message(i++, FAIL, "get_cgroup()", ret, + info[NOMESSAGE]); + } else { + message(i++, FAIL, "get_cgroup()", ret, info[NOMESSAGE]); + } + + /* Delete this created group from fs to leave fs clean */ + if (fs_mounted == FS_MULTI_MOUNTED) + test_cgroup_delete_cgroup(0, cgroup_a, "group_a", 1, 1, 0, 0); + else + test_cgroup_delete_cgroup(0, cgroup_a, "group_a", 0, 1, 0, 0); + + cgroup_free(&cgroup_a); + cgroup_free(&cgroup_b); + cgroup_free(&cgroup_filled); +} + +/** + * Tests the cgroup_add_controller() and cgroup_free_controller() wrapper + * apis under different scenarios + * @param the test number + */ +void test_cgroup_add_free_controller(int i) +{ + struct cgroup *cgroup1 = NULL, *cgroup2 = NULL; + struct cgroup_controller *cgctl1, *cgctl2; + + /* Test with a Null cgroup */ + cgctl1 = cgroup_add_controller(cgroup1, "cpu"); + if (!cgctl1) + message(i++, PASS, "add_controller()", 0, info[NOMESSAGE]); + else + message(i++, FAIL, "add_controller()", -1, info[NOMESSAGE]); + + cgroup1 = cgroup_new_cgroup("testgroup"); + cgctl1 = cgroup_add_controller(cgroup1, "cpuset"); + if (cgctl1) + message(i++, PASS, "add_controller()", 0, info[NOMESSAGE]); + else + message(i++, FAIL, "add_controller()", -1, info[NOMESSAGE]); + + cgctl2 = cgroup_add_controller(cgroup1, "cpu"); + if (cgctl2) + message(i++, PASS, "add_controller()", 0, info[NOMESSAGE]); + else + message(i++, FAIL, "add_controller()", -1, info[NOMESSAGE]); + + cgroup_free(&cgroup1); + cgroup_free_controllers(cgroup2); +} + +/** + * Returns the tid of the current thread + */ +pid_t cgrouptest_gettid() +{ + return syscall(__NR_gettid); +} |