Index: boot/Makefile.common =================================================================== --- boot/Makefile.common (revision 63f89665fc0283c1661274dc636d5a66e03d48b4) +++ boot/Makefile.common (revision 18b5402c52a19cabb1ecd9b32bd8d5dc8862b22a) @@ -70,5 +70,6 @@ $(USPACEDIR)/app/tester/tester \ $(USPACEDIR)/app/tetris/tetris \ - $(USPACEDIR)/app/trace/trace + $(USPACEDIR)/app/trace/trace \ + $(USPACEDIR)/app/ps/ps COMPONENTS = \ Index: kernel/Makefile =================================================================== --- kernel/Makefile (revision 63f89665fc0283c1661274dc636d5a66e03d48b4) +++ kernel/Makefile (revision 18b5402c52a19cabb1ecd9b32bd8d5dc8862b22a) @@ -229,5 +229,6 @@ generic/src/ipc/event.c \ generic/src/security/cap.c \ - generic/src/sysinfo/sysinfo.c + generic/src/sysinfo/sysinfo.c \ + generic/src/ps/ps.c ## Kernel console support Index: kernel/generic/include/proc/thread.h =================================================================== --- kernel/generic/include/proc/thread.h (revision 63f89665fc0283c1661274dc636d5a66e03d48b4) +++ kernel/generic/include/proc/thread.h (revision 18b5402c52a19cabb1ecd9b32bd8d5dc8862b22a) @@ -69,21 +69,6 @@ #define THREAD_FLAG_NOATTACH (1 << 3) -/** Thread states. */ -typedef enum { - /** It is an error, if thread is found in this state. */ - Invalid, - /** State of a thread that is currently executing on some CPU. */ - Running, - /** Thread in this state is waiting for an event. */ - Sleeping, - /** State of threads in a run queue. */ - Ready, - /** Threads are in this state before they are first readied. */ - Entering, - /** After a thread calls thread_exit(), it is put into Exiting state. */ - Exiting, - /** Threads that were not detached but exited are Lingering. */ - Lingering -} state_t; +/* We need state_t enum definition */ +#include /** Thread structure. There is one per thread. */ Index: kernel/generic/include/ps/ps.h =================================================================== --- kernel/generic/include/ps/ps.h (revision 18b5402c52a19cabb1ecd9b32bd8d5dc8862b22a) +++ kernel/generic/include/ps/ps.h (revision 18b5402c52a19cabb1ecd9b32bd8d5dc8862b22a) @@ -0,0 +1,47 @@ +/* + * Copyright (c) 2010 Stanislav Kozina + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * - Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * - Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * - The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES + * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. + * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +/** @addtogroup generic + * @{ + */ +/** @file + */ + +#ifndef KERN_PS_H_ +#define KERN_PS_H_ + +#include + +extern size_t sys_ps_get_tasks(task_id_t *uspace_ids, size_t size); +extern int sys_ps_get_task_info(task_id_t *uspace_id, task_info_t *uspace_info); +extern int sys_ps_get_threads(task_id_t *uspace_id, thread_info_t *uspace_infos, size_t size); + +#endif + +/** @} + */ Index: kernel/generic/include/ps/taskinfo.h =================================================================== --- kernel/generic/include/ps/taskinfo.h (revision 18b5402c52a19cabb1ecd9b32bd8d5dc8862b22a) +++ kernel/generic/include/ps/taskinfo.h (revision 18b5402c52a19cabb1ecd9b32bd8d5dc8862b22a) @@ -0,0 +1,83 @@ +/* + * Copyright (c) 2010 Stanislav Kozina + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * - Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * - Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * - The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES + * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. + * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +/** @addtogroup generic + * @{ + */ +/** @file taskinfo.h Contains all thread and task defs common for + * kernel and uspace. + */ + +#ifndef KERN_PS_TASKINFO_H_ +#define KERN_PS_TASKINFO_H_ + +#ifdef KERNEL +#include +#else +#include +#endif + +#define TASK_NAME_BUFLEN 20 + +typedef struct { + char name[TASK_NAME_BUFLEN]; + size_t pages; + int thread_count; + uint64_t cycles; +} task_info_t; + +/** Thread states. */ +typedef enum { + /** It is an error, if thread is found in this state. */ + Invalid, + /** State of a thread that is currently executing on some CPU. */ + Running, + /** Thread in this state is waiting for an event. */ + Sleeping, + /** State of threads in a run queue. */ + Ready, + /** Threads are in this state before they are first readied. */ + Entering, + /** After a thread calls thread_exit(), it is put into Exiting state. */ + Exiting, + /** Threads that were not detached but exited are Lingering. */ + Lingering +} state_t; + +typedef struct { + thread_id_t tid; + state_t state; + int priority; + uint64_t cycles; +} thread_info_t; + + +#endif + +/** @} + */ Index: kernel/generic/include/syscall/syscall.h =================================================================== --- kernel/generic/include/syscall/syscall.h (revision 63f89665fc0283c1661274dc636d5a66e03d48b4) +++ kernel/generic/include/syscall/syscall.h (revision 18b5402c52a19cabb1ecd9b32bd8d5dc8862b22a) @@ -87,4 +87,9 @@ SYS_DEBUG_ENABLE_CONSOLE, SYS_DEBUG_DISABLE_CONSOLE, + + SYS_PS_GET_TASKS, + SYS_PS_GET_TASK_INFO, + SYS_PS_GET_THREADS, + SYS_IPC_CONNECT_KBOX, SYSCALL_END Index: kernel/generic/src/ps/ps.c =================================================================== --- kernel/generic/src/ps/ps.c (revision 18b5402c52a19cabb1ecd9b32bd8d5dc8862b22a) +++ kernel/generic/src/ps/ps.c (revision 18b5402c52a19cabb1ecd9b32bd8d5dc8862b22a) @@ -0,0 +1,201 @@ +/* + * Copyright (c) 2010 Stanislav Kozina + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * - Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * - Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * - The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES + * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. + * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +/** @addtogroup genericps + * @{ + */ + +/** + * @file + * @brief Process listing. + */ + +#include +#include +#include +#include +#include +#include +#include +#include + +static size_t count; +static size_t max_count; +static task_t *selected_task; + +#define WRITE_TASK_ID(dst, i, src) copy_to_uspace(dst + i, src, sizeof(task_id_t)) +#define WRITE_THREAD_INFO(dst, i, src) copy_to_uspace(dst+i, src, sizeof(thread_info_t)) + +static bool task_walker(avltree_node_t *node, void *arg) +{ + task_t *t = avltree_get_instance(node, task_t, tasks_tree_node); + task_id_t *ids = (task_id_t *)arg; + + spinlock_lock(&t->lock); + + ++count; + if (count > max_count) { + spinlock_unlock(&t->lock); + return false; + } + + WRITE_TASK_ID(ids, count - 1, &t->taskid); + + spinlock_unlock(&t->lock); + return true; +} + +size_t sys_ps_get_tasks(task_id_t *uspace_ids, size_t size) +{ + ipl_t ipl; + + /* Messing with task structures, avoid deadlock */ + ipl = interrupts_disable(); + spinlock_lock(&tasks_lock); + + count = 0; + max_count = size / sizeof(task_id_t); + avltree_walk(&tasks_tree, task_walker, uspace_ids); + + spinlock_unlock(&tasks_lock); + interrupts_restore(ipl); + + return count; +} + +static size_t get_pages_count(as_t *as) +{ + mutex_lock(&as->lock); + + size_t result = 0; + + link_t *cur; + for (cur = as->as_area_btree.leaf_head.next; + cur != &as->as_area_btree.leaf_head; cur = cur->next) { + btree_node_t *node; + + node = list_get_instance(cur, btree_node_t, leaf_link); + + unsigned int i; + for (i = 0; i < node->keys; i++) { + as_area_t *area = node->value[i]; + + mutex_lock(&area->lock); + result += area->pages; + mutex_unlock(&area->lock); + } + } + + mutex_unlock(&as->lock); + + return result; +} + +int sys_ps_get_task_info(task_id_t *uspace_id, task_info_t *uspace_info) +{ + ipl_t ipl; + ipl = interrupts_disable(); + + task_id_t id; + copy_from_uspace(&id, uspace_id, sizeof(task_id_t)); + + spinlock_lock(&tasks_lock); + task_t *t = task_find_by_id(id); + spinlock_lock(&t->lock); + spinlock_unlock(&tasks_lock); + + copy_to_uspace(uspace_info->name, t->name, sizeof(t->name)); + + uint64_t cycles = task_get_accounting(t); + copy_to_uspace(&uspace_info->cycles, &cycles, sizeof(cycles)); + + size_t pages = get_pages_count(t->as); + copy_to_uspace(&uspace_info->pages, &pages, sizeof(pages)); + + int thread_count = atomic_get(&t->refcount); + copy_to_uspace(&uspace_info->thread_count, &thread_count, sizeof(thread_count)); + + spinlock_unlock(&t->lock); + interrupts_restore(ipl); + return 0; +} + +static bool thread_walker(avltree_node_t *node, void *arg) +{ + thread_t *t = avltree_get_instance(node, thread_t, threads_tree_node); + thread_info_t *infos = (thread_info_t *)arg; + thread_info_t result; + + spinlock_lock(&t->lock); + + if (t->task != selected_task) { + spinlock_unlock(&t->lock); + return true; + } + + ++count; + if (count > max_count) { + spinlock_unlock(&t->lock); + return false; + } + + result.tid = t->tid; + result.state = t->state; + result.priority = t->priority; + result.cycles = t->cycles; + + WRITE_THREAD_INFO(infos, count - 1, &result); + + spinlock_unlock(&t->lock); + return true; +} + +int sys_ps_get_threads(task_id_t *uspace_id, thread_info_t *uspace_infos, size_t size) +{ + ipl_t ipl; + ipl = interrupts_disable(); + + task_id_t id; + copy_from_uspace(&id, uspace_id, sizeof(task_id_t)); + spinlock_lock(&tasks_lock); + selected_task = task_find_by_id(id); + spinlock_unlock(&tasks_lock); + + spinlock_lock(&threads_lock); + + count = 0; + max_count = size / sizeof(thread_info_t); + avltree_walk(&threads_tree, thread_walker, uspace_infos); + + spinlock_unlock(&threads_lock); + interrupts_restore(ipl); + return count; +} + +/** @} + */ Index: kernel/generic/src/syscall/syscall.c =================================================================== --- kernel/generic/src/syscall/syscall.c (revision 63f89665fc0283c1661274dc636d5a66e03d48b4) +++ kernel/generic/src/syscall/syscall.c (revision 18b5402c52a19cabb1ecd9b32bd8d5dc8862b22a) @@ -54,4 +54,5 @@ #include #include +#include /** Dispatch system call */ @@ -159,4 +160,9 @@ (syshandler_t) sys_debug_enable_console, (syshandler_t) sys_debug_disable_console, + + /* Ps calls */ + (syshandler_t) sys_ps_get_tasks, + (syshandler_t) sys_ps_get_task_info, + (syshandler_t) sys_ps_get_threads, (syshandler_t) sys_ipc_connect_kbox Index: uspace/Makefile =================================================================== --- uspace/Makefile (revision 63f89665fc0283c1661274dc636d5a66e03d48b4) +++ uspace/Makefile (revision 18b5402c52a19cabb1ecd9b32bd8d5dc8862b22a) @@ -45,4 +45,5 @@ app/tetris \ app/trace \ + app/ps \ srv/clip \ srv/devmap \ Index: uspace/app/ps/Makefile =================================================================== --- uspace/app/ps/Makefile (revision 18b5402c52a19cabb1ecd9b32bd8d5dc8862b22a) +++ uspace/app/ps/Makefile (revision 18b5402c52a19cabb1ecd9b32bd8d5dc8862b22a) @@ -0,0 +1,36 @@ +# +# Copyright (c) 2005 Martin Decky +# Copyright (c) 2007 Jakub Jermar +# All rights reserved. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions +# are met: +# +# - Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# - Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# - The name of the author may not be used to endorse or promote products +# derived from this software without specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR +# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES +# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. +# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, +# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT +# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF +# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +# + +USPACE_PREFIX = ../.. +BINARY = ps + +SOURCES = \ + ps.c + +include $(USPACE_PREFIX)/Makefile.common Index: uspace/app/ps/ps.c =================================================================== --- uspace/app/ps/ps.c (revision 18b5402c52a19cabb1ecd9b32bd8d5dc8862b22a) +++ uspace/app/ps/ps.c (revision 18b5402c52a19cabb1ecd9b32bd8d5dc8862b22a) @@ -0,0 +1,119 @@ +/* + * Copyright (c) 2010 Stanislav Kozina + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * - Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * - Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * - The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES + * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. + * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +/** @addtogroup ps + * @brief Task lister. + * @{ + */ +/** + * @file + */ + +#include +#include +#include +#include +#include +#include +/* #include */ +#include + +#define TASK_COUNT 10 +#define THREAD_COUNT 50 + +static void list_tasks(void) +{ + int task_count = TASK_COUNT; + task_id_t *tasks = malloc(task_count * sizeof(task_id_t)); + int result = get_task_ids(tasks, sizeof(task_id_t) * task_count); + + while (result > task_count) { + task_count *= 2; + tasks = realloc(tasks, task_count * sizeof(task_id_t)); + result = get_task_ids(tasks, sizeof(task_id_t) * task_count); + } + + printf(" ID Threads Pages [k]Cycles Name\n"); + + int i; + for (i = 0; i < result; ++i) { + task_info_t taskinfo; + get_task_info(tasks[i], &taskinfo); + printf("%8llu %8u %8u %12llu %s\n", tasks[i], taskinfo.thread_count, + taskinfo.pages, taskinfo.cycles / 1000, taskinfo.name); + } +} + +static void list_threads(task_id_t taskid) +{ + int thread_count = THREAD_COUNT; + thread_info_t *threads = malloc(thread_count * sizeof(thread_info_t)); + int result = get_task_threads(taskid, threads, sizeof(thread_info_t) * thread_count); + + while (result > thread_count) { + thread_count *= 2; + threads = realloc(threads, thread_count * sizeof(thread_info_t)); + result = get_task_threads(taskid, threads, sizeof(thread_info_t) * thread_count); + } + + int i; + printf(" ID State Prio [k]Cycles\n"); + for (i = 0; i < result; ++i) { + printf("%6llu %8d %6d %12llu\n", threads[i].tid, threads[i].state, + threads[i].priority, threads[i].cycles / 1000); + } +} + +int main(int argc, char *argv[]) +{ + --argc; ++argv; + + if (argc > 0) + { + if (str_cmp(*argv, "-t") == 0) { + --argc; ++argv; + if (argc != 1) { + printf("Bad argument count!\n"); + exit(1); + } + task_id_t taskid = strtol(*argv, NULL, 10); + list_threads(taskid); + } else { + printf("Unknown argument %s!\n", *argv); + exit(1); + } + + } else { + list_tasks(); + } + + return 0; +} + +/** @} + */ Index: uspace/lib/c/Makefile =================================================================== --- uspace/lib/c/Makefile (revision 63f89665fc0283c1661274dc636d5a66e03d48b4) +++ uspace/lib/c/Makefile (revision 18b5402c52a19cabb1ecd9b32bd8d5dc8862b22a) @@ -90,5 +90,6 @@ generic/vfs/vfs.c \ generic/vfs/canonify.c \ - generic/stacktrace.c + generic/stacktrace.c \ + generic/ps.c SOURCES = \ Index: uspace/lib/c/generic/ps.c =================================================================== --- uspace/lib/c/generic/ps.c (revision 18b5402c52a19cabb1ecd9b32bd8d5dc8862b22a) +++ uspace/lib/c/generic/ps.c (revision 18b5402c52a19cabb1ecd9b32bd8d5dc8862b22a) @@ -0,0 +1,83 @@ +/* + * Copyright (c) 2010 Stanislav Kozina + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * - Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * - Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * - The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES + * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. + * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +/** @addtogroup libc + * @{ + */ +/** @file + */ + +#include +#include +#include +#include + +/** Get the list of task ids. + * + * @param ids Pointer to space where list of ids will be stored. + * @param size Total size of allocated space under ids. + * + * @return Count of written task ids. If higher than size, there + * was not enough space. + * + */ +size_t get_task_ids(task_id_t *ids, size_t size) +{ + return __SYSCALL2(SYS_PS_GET_TASKS, (sysarg_t) ids, (sysarg_t) size); +} + +/** Get task info. + * + * @param id Id of the task to get info about. + * @param info Pointer to out info struct. + * + * @return 0 on success. + * + */ +int get_task_info(task_id_t id, task_info_t *info) +{ + return __SYSCALL2(SYS_PS_GET_TASK_INFO, (sysarg_t) &id, (sysarg_t) info); +} + +/** Get thread infos of the selected task. + * + * @param taskid Id of the selected task. + * @param infos Pointer to out array of thread_info_t structures. + * @param size Size of the infos array. + * + * @return 0 on success. + * + */ +int get_task_threads(task_id_t taskid, thread_info_t *infos, size_t size) +{ + return __SYSCALL3(SYS_PS_GET_THREADS, (sysarg_t) &taskid, (sysarg_t) infos, + (sysarg_t) size); +} + +/** @} + */ Index: uspace/lib/c/include/ps.h =================================================================== --- uspace/lib/c/include/ps.h (revision 18b5402c52a19cabb1ecd9b32bd8d5dc8862b22a) +++ uspace/lib/c/include/ps.h (revision 18b5402c52a19cabb1ecd9b32bd8d5dc8862b22a) @@ -0,0 +1,48 @@ +/* + * Copyright (c) 2010 Stanislav Kozina + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * - Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * - Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * - The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES + * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. + * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +/** @addtogroup libc + * @{ + */ +/** @file + */ + +#ifndef LIBC_PS_H_ +#define LIBC_PS_H_ + +#include +#include + +extern size_t get_task_ids(task_id_t *ids, size_t size); +extern int get_task_info(task_id_t id, task_info_t *info); +extern int get_task_threads(task_id_t taskid, thread_info_t *infos, size_t size); + +#endif + +/** @} + */