>From 10024f2b41c129e5e7e892c60946c8dd5dd58007 Mon Sep 17 00:00:00 2001 From: Akira Yokosawa <akiyks@xxxxxxxxx> Date: Sun, 28 May 2017 09:40:21 +0900 Subject: [RFC PATCH 2/4] CodeSamples: Remove generated files from repository Now, as Makefile.arch and api.h are generated when necessary, they are no longer necessary in the repository. Also fix entry for gprof-helper.c in .gitignore and remove an executable file sneaked into repository under datastruct/Issaquah/. Signed-off-by: Akira Yokosawa <akiyks@xxxxxxxxx> --- CodeSamples/.gitignore | 4 +- CodeSamples/Makefile.arch | 6 - CodeSamples/api.h | 808 ------------------------- CodeSamples/datastruct/Issaquah/existence_test | Bin 26359 -> 0 bytes 4 files changed, 3 insertions(+), 815 deletions(-) delete mode 100644 CodeSamples/Makefile.arch delete mode 100644 CodeSamples/api.h delete mode 100755 CodeSamples/datastruct/Issaquah/existence_test diff --git a/CodeSamples/.gitignore b/CodeSamples/.gitignore index 9e3642f..e116055 100644 --- a/CodeSamples/.gitignore +++ b/CodeSamples/.gitignore @@ -1 +1,3 @@ -./gprof-helper.c +/gprof-helper.c +/Makefile.arch +/api.h diff --git a/CodeSamples/Makefile.arch b/CodeSamples/Makefile.arch deleted file mode 100644 index 07a4b33..0000000 --- a/CodeSamples/Makefile.arch +++ /dev/null @@ -1,6 +0,0 @@ -# MECHANICALLY GENERATED, DO NOT EDIT!!! - -# For use on 64-bit systems, add -m32. You might also need to install -# g++-multilib (thanks to robert.berger@xxxxxxxxxxxxxxxxxxxxxxxxxxx). - -GCC_ARGS=-g -O3 -Wall diff --git a/CodeSamples/api.h b/CodeSamples/api.h deleted file mode 100644 index 3b4bc16..0000000 --- a/CodeSamples/api.h +++ /dev/null @@ -1,808 +0,0 @@ -#ifndef __PERFBOOK_API_H__ -#define __PERFBOOK_API_H__ -/* MECHANICALLY GENERATED, DO NOT EDIT!!! */ - -/* - * common.h: Common Linux kernel-isms. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; but version 2 of the License only due - * to code included from the Linux kernel. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, you can access it online at - * http://www.gnu.org/licenses/gpl-2.0.html. - * - * Copyright (c) 2006 Paul E. McKenney, IBM. - * - * Much code taken from the Linux kernel. For such code, the option - * to redistribute under later versions of GPL might not be available. - */ - -#ifndef __always_inline -#define __always_inline inline -#endif -#ifndef __maybe_unused -#define __maybe_unused __attribute__((unused)) -#endif - -#define BUILD_BUG_ON(condition) ((void)sizeof(char[1 - 2*!!(condition)])) -#define BUILD_BUG_ON_ZERO(e) (sizeof(char[1 - 2 * !!(e)]) - 1) - -#ifdef __ASSEMBLY__ -# define stringify_in_c(...) __VA_ARGS__ -# define ASM_CONST(x) x -#else -/* This version of stringify will deal with commas... */ -# define __stringify_in_c(...) #__VA_ARGS__ -# define stringify_in_c(...) __stringify_in_c(__VA_ARGS__) " " -# define __ASM_CONST(x) x##UL -# define ASM_CONST(x) __ASM_CONST(x) -#endif - - -/* - * arch-i386.h: Expose x86 atomic instructions. 80486 and better only. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation, but version 2 only due to inclusion - * of Linux-kernel code. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, you can access it online at - * http://www.gnu.org/licenses/gpl-2.0.html. - * - * Copyright (c) 2006 Paul E. McKenney, IBM. - * - * Much code taken from the Linux kernel. For such code, the option - * to redistribute under later versions of GPL might not be available. - */ - -/* - * Machine parameters. - */ - -#define CONFIG_SMP - -#define CACHE_LINE_SIZE 64 -#define ____cacheline_internodealigned_in_smp \ - __attribute__((__aligned__(1 << 6))) - -#define LOCK_PREFIX "lock ; " - -/* These are x86-specific, used by some header files */ -#define atomic_clear_mask(mask, addr) \ -__asm__ __volatile__(LOCK_PREFIX "andl %0,%1" \ -: : "r" (~(mask)),"m" (*addr) : "memory") - -#define atomic_set_mask(mask, addr) \ -__asm__ __volatile__(LOCK_PREFIX "orl %0,%1" \ -: : "r" (mask),"m" (*(addr)) : "memory") - -/* Atomic operations are already serializing on x86 */ -#define smp_mb__before_atomic_dec() barrier() -#define smp_mb__after_atomic_dec() barrier() -#define smp_mb__before_atomic_inc() barrier() -#define smp_mb__after_atomic_inc() barrier() - -#define smp_mb() \ -__asm__ __volatile__("mfence" : : : "memory") -/* __asm__ __volatile__("lock; addl $0,0(%%esp)" : : : "memory") */ - - -/* - * Generate 64-bit timestamp. - */ - -static __inline__ long long get_timestamp(void) -{ - unsigned int __a,__d; - - __asm__ __volatile__("rdtsc" : "=a" (__a), "=d" (__d)); - return ((long long)__a) | (((long long)__d)<<32); -} - -/* - * api_pthreads.h: API mapping to pthreads environment. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. However, please note that much - * of the code in this file derives from the Linux kernel, and that such - * code may not be available except under GPLv2. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, you can access it online at - * http://www.gnu.org/licenses/gpl-2.0.html. - * - * Copyright (c) 2006 Paul E. McKenney, IBM. - */ - -#include <stdio.h> -#include <stdlib.h> -#include <unistd.h> -#include <strings.h> -#include <errno.h> -#include <limits.h> -#include <sys/types.h> -#include <sys/wait.h> -#include <poll.h> -#include <sys/time.h> -#include <string.h> -#ifndef _GNU_SOURCE -#define _GNU_SOURCE -#endif /* #ifndef _GNU_SOURCE */ -#ifndef __USE_GNU -#define __USE_GNU -#endif /* #ifndef __USE_GNU */ -#include <pthread.h> -#include <sched.h> -#include <sys/param.h> -/* #include "atomic.h" */ - -/* - * Compiler magic. - */ -#ifndef offsetof -#define offsetof(TYPE, MEMBER) ((size_t) &((TYPE *)0)->MEMBER) -#endif /* #ifndef offsetof */ -#ifndef container_of -#define container_of(ptr, type, member) ({ \ - const typeof( ((type *)0)->member ) *__mptr = (ptr); \ - (type *)( (char *)__mptr - offsetof(type,member) );}) -#endif /* #ifndef offsetof */ -#define barrier() __asm__ __volatile__("": : :"memory") - -/* - * Default machine parameters. - */ - -#ifndef CACHE_LINE_SIZE -#define CACHE_LINE_SIZE 128 -#endif /* #ifndef CACHE_LINE_SIZE */ - -/* - * Exclusive locking primitives. - */ - -typedef pthread_mutex_t spinlock_t; - -#define DEFINE_SPINLOCK(lock) spinlock_t lock = PTHREAD_MUTEX_INITIALIZER; -#define __SPIN_LOCK_UNLOCKED(lockp) PTHREAD_MUTEX_INITIALIZER - -static __inline__ void spin_lock_init(spinlock_t *sp) -{ - int ret; - -retry: - ret = pthread_mutex_init(sp, NULL); - if (ret) { - if (ret == EINTR) - goto retry; - fprintf(stderr, "spin_lock_init:pthread_mutex_init %d\n", ret); - abort(); - } -} - -static __inline__ void spin_lock(spinlock_t *sp) -{ - if (pthread_mutex_lock(sp) != 0) { - perror("spin_lock:pthread_mutex_lock"); - abort(); - } -} - -static __inline__ int spin_trylock(spinlock_t *sp) -{ - int retval; - - if ((retval = pthread_mutex_trylock(sp)) == 0) - return 1; - if (retval == EBUSY) - return 0; - perror("spin_trylock:pthread_mutex_trylock"); - abort(); -} - -static __inline__ void spin_unlock(spinlock_t *sp) -{ - if (pthread_mutex_unlock(sp) != 0) { - perror("spin_unlock:pthread_mutex_unlock"); - abort(); - } -} - -static __inline__ int spin_is_locked(spinlock_t *sp) -{ - if (spin_trylock(sp)) { - spin_unlock(sp); - return 0; - } - return 1; -} - -#define spin_lock_irqsave(l, f) do { f = 1; spin_lock(l); } while (0) -#define spin_unlock_irqrestore(l, f) do { f = 0; spin_unlock(l); } while (0) - -#define ACCESS_ONCE(x) (*(volatile typeof(x) *)&(x)) -#define READ_ONCE(x) ({ typeof(x) ___x = ACCESS_ONCE(x); ___x; }) -#define WRITE_ONCE(x, val) ({ ACCESS_ONCE(x) = (val); }) -#ifndef unlikely -#define unlikely(x) x -#endif /* #ifndef unlikely */ -#ifndef likely -#define likely(x) x -#endif /* #ifndef likely */ -#define prefetch(x) x - -/* - * Thread creation/destruction primitives. - */ - -typedef pthread_t thread_id_t; - -#define NR_THREADS 128 - -#define __THREAD_ID_MAP_EMPTY 0 -#define __THREAD_ID_MAP_WAITING 1 -thread_id_t __thread_id_map[NR_THREADS]; -spinlock_t __thread_id_map_mutex; - -#define for_each_thread(t) \ - for (t = 0; t < NR_THREADS; t++) - -#define for_each_running_thread(t) \ - for (t = 0; t < NR_THREADS; t++) \ - if ((__thread_id_map[t] != __THREAD_ID_MAP_EMPTY) && \ - (__thread_id_map[t] != __THREAD_ID_MAP_WAITING)) - -#define for_each_tid(t, tid) \ - for (t = 0; t < NR_THREADS; t++) \ - if ((((tid) = __thread_id_map[t]) != __THREAD_ID_MAP_EMPTY) && \ - ((tid) != __THREAD_ID_MAP_WAITING)) - -pthread_key_t thread_id_key; - -static __inline__ int num_online_threads(void) -{ - int t; - int nonline = 0; - - for_each_running_thread(t) - nonline++; - return nonline; -} - -static __inline__ int __smp_thread_id(void) -{ - int i; - thread_id_t tid = pthread_self(); - - for (i = 0; i < NR_THREADS; i++) { - if (__thread_id_map[i] == tid) { - long v = i + 1; /* must be non-NULL. */ - - if (pthread_setspecific(thread_id_key, (void *)v) != 0) { - perror("pthread_setspecific"); - exit(-1); - } - return i; - } - } - spin_lock(&__thread_id_map_mutex); - for (i = 0; i < NR_THREADS; i++) { - if (__thread_id_map[i] == tid) { - spin_unlock(&__thread_id_map_mutex); - return i; - } - } - spin_unlock(&__thread_id_map_mutex); - fprintf(stderr, "smp_thread_id: Rogue thread, id: %d(%#x)\n", - (int)tid, (int)tid); - exit(-1); -} - -static __inline__ int smp_thread_id(void) -{ - void *id; - - id = pthread_getspecific(thread_id_key); - if (id == NULL) - return __smp_thread_id(); - return (long)(id - 1); -} - -static __inline__ thread_id_t create_thread(void *(*func)(void *), void *arg) -{ - thread_id_t tid; - int i; - - spin_lock(&__thread_id_map_mutex); - for (i = 0; i < NR_THREADS; i++) { - if (__thread_id_map[i] == __THREAD_ID_MAP_EMPTY) - break; - } - if (i >= NR_THREADS) { - spin_unlock(&__thread_id_map_mutex); - fprintf(stderr, "Thread limit of %d exceeded!\n", NR_THREADS); - exit(-1); - } - __thread_id_map[i] = __THREAD_ID_MAP_WAITING; - if (pthread_create(&tid, NULL, func, arg) != 0) { - perror("create_thread:pthread_create"); - exit(-1); - } - __thread_id_map[i] = tid; - spin_unlock(&__thread_id_map_mutex); - return tid; -} - -static __inline__ void *wait_thread(thread_id_t tid) -{ - int i; - void *vp; - - for (i = 0; i < NR_THREADS; i++) { - if (__thread_id_map[i] == tid) - break; - } - if (i >= NR_THREADS){ - fprintf(stderr, "wait_thread: bad tid = %d(%#x)\n", - (int)tid, (int)tid); - exit(-1); - } - if (pthread_join(tid, &vp) != 0) { - perror("wait_thread:pthread_join"); - exit(-1); - } - __thread_id_map[i] = __THREAD_ID_MAP_EMPTY; - return vp; -} - -static __inline__ void wait_all_threads(void) -{ - int i; - thread_id_t tid; - - for (i = 1; i < NR_THREADS; i++) { - tid = __thread_id_map[i]; - if (tid != __THREAD_ID_MAP_EMPTY && - tid != __THREAD_ID_MAP_WAITING) - (void)wait_thread(tid); - } -} - -/* - * Wait on all child processes. - */ -static __inline__ void waitall(void) -{ - int pid; - int status; - - for (;;) { - pid = wait(&status); - if (pid == -1) { - if (errno == ECHILD) - break; - perror("wait"); - exit(-1); - } - poll(NULL, 0, 1); - } -} - -static __inline__ void run_on(int cpu) -{ - cpu_set_t mask; - - CPU_ZERO(&mask); - CPU_SET(cpu, &mask); - sched_setaffinity(0, sizeof(mask), &mask); -} - -/* - * timekeeping -- very crude -- should use MONOTONIC... - */ - -static __inline__ long long get_microseconds(void) -{ - struct timeval tv; - - if (gettimeofday(&tv, NULL) != 0) - abort(); - return ((long long)tv.tv_sec) * 1000000LL + (long long)tv.tv_usec; -} - -/* - * Per-thread variables. - */ - -#define DEFINE_PER_THREAD(type, name) \ - struct { \ - __typeof__(type) v \ - __attribute__((__aligned__(CACHE_LINE_SIZE))); \ - } __per_thread_##name[NR_THREADS]; -#define DECLARE_PER_THREAD(type, name) extern DEFINE_PER_THREAD(type, name) - -#define per_thread(name, thread) __per_thread_##name[thread].v -#define __get_thread_var(name) per_thread(name, smp_thread_id()) - -#define init_per_thread(name, v) \ - do { \ - int __i_p_t_i; \ - for (__i_p_t_i = 0; __i_p_t_i < NR_THREADS; __i_p_t_i++) \ - per_thread(name, __i_p_t_i) = v; \ - } while (0) - -/* - * CPU traversal primitives. - */ - -#ifndef NR_CPUS -#define NR_CPUS 16 -#endif /* #ifndef NR_CPUS */ - -#define for_each_possible_cpu(cpu) \ - for (cpu = 0; cpu < NR_CPUS; cpu++) -#define for_each_online_cpu(cpu) \ - for (cpu = 0; cpu < NR_CPUS; cpu++) - -/* - * Per-CPU variables. - */ - -#define DEFINE_PER_CPU(type, name) \ - struct { \ - __typeof__(type) v \ - __attribute__((__aligned__(CACHE_LINE_SIZE))); \ - } __per_cpu_##name[NR_CPUS] -#define DECLARE_PER_CPU(type, name) extern DEFINE_PER_CPU(type, name) - -DEFINE_PER_THREAD(int, smp_processor_id); - -static __inline__ int smp_processor_id(void) -{ - return __get_thread_var(smp_processor_id); -} - -static __inline__ void set_smp_processor_id(int cpu) -{ - __get_thread_var(smp_processor_id) = cpu; -} - -#define per_cpu(name, thread) __per_cpu_##name[thread].v -#define __get_cpu_var(name) per_cpu(name, smp_processor_id()) - -#define init_per_cpu(name, v) \ - do { \ - int __i_p_c_i; \ - for (__i_p_c_i = 0; __i_p_c_i < NR_CPUS; __i_p_c_i++) \ - per_cpu(name, __i_p_c_i) = v; \ - } while (0) - -/* - * CPU state checking (crowbarred). - */ - -#define idle_cpu(cpu) 0 -#define in_softirq() 1 -#define hardirq_count() 0 -#define PREEMPT_SHIFT 0 -#define SOFTIRQ_SHIFT (PREEMPT_SHIFT + PREEMPT_BITS) -#define HARDIRQ_SHIFT (SOFTIRQ_SHIFT + SOFTIRQ_BITS) -#define PREEMPT_BITS 8 -#define SOFTIRQ_BITS 8 - -/* - * CPU hotplug. - */ - -struct notifier_block { - int (*notifier_call)(struct notifier_block *, unsigned long, void *); - struct notifier_block *next; - int priority; -}; - -#define CPU_ONLINE 0x0002 /* CPU (unsigned)v is up */ -#define CPU_UP_PREPARE 0x0003 /* CPU (unsigned)v coming up */ -#define CPU_UP_CANCELED 0x0004 /* CPU (unsigned)v NOT coming up */ -#define CPU_DOWN_PREPARE 0x0005 /* CPU (unsigned)v going down */ -#define CPU_DOWN_FAILED 0x0006 /* CPU (unsigned)v NOT going down */ -#define CPU_DEAD 0x0007 /* CPU (unsigned)v dead */ -#define CPU_DYING 0x0008 /* CPU (unsigned)v not running any task, - * not handling interrupts, soon dead */ -#define CPU_POST_DEAD 0x0009 /* CPU (unsigned)v dead, cpu_hotplug - * lock is dropped */ - -/* Used for CPU hotplug events occuring while tasks are frozen due to a suspend - * operation in progress - */ -#define CPU_TASKS_FROZEN 0x0010 - -#define CPU_ONLINE_FROZEN (CPU_ONLINE | CPU_TASKS_FROZEN) -#define CPU_UP_PREPARE_FROZEN (CPU_UP_PREPARE | CPU_TASKS_FROZEN) -#define CPU_UP_CANCELED_FROZEN (CPU_UP_CANCELED | CPU_TASKS_FROZEN) -#define CPU_DOWN_PREPARE_FROZEN (CPU_DOWN_PREPARE | CPU_TASKS_FROZEN) -#define CPU_DOWN_FAILED_FROZEN (CPU_DOWN_FAILED | CPU_TASKS_FROZEN) -#define CPU_DEAD_FROZEN (CPU_DEAD | CPU_TASKS_FROZEN) -#define CPU_DYING_FROZEN (CPU_DYING | CPU_TASKS_FROZEN) - -/* Hibernation and suspend events */ -#define PM_HIBERNATION_PREPARE 0x0001 /* Going to hibernate */ -#define PM_POST_HIBERNATION 0x0002 /* Hibernation finished */ -#define PM_SUSPEND_PREPARE 0x0003 /* Going to suspend the system */ -#define PM_POST_SUSPEND 0x0004 /* Suspend finished */ -#define PM_RESTORE_PREPARE 0x0005 /* Going to restore a saved image */ -#define PM_POST_RESTORE 0x0006 /* Restore failed */ - -#define NOTIFY_DONE 0x0000 /* Don't care */ -#define NOTIFY_OK 0x0001 /* Suits me */ -#define NOTIFY_STOP_MASK 0x8000 /* Don't call further */ -#define NOTIFY_BAD (NOTIFY_STOP_MASK|0x0002) - /* Bad/Veto action */ -/* - * Clean way to return from the notifier and stop further calls. - */ -#define NOTIFY_STOP (NOTIFY_OK|NOTIFY_STOP_MASK) - -/* - * Bug checks. - */ - -#define BUG_ON(c) do { if (c) abort(); } while (0) - -/* - * Initialization -- Must be called before calling any primitives. - */ - -static __inline__ void smp_init(void) -{ - int i; - - spin_lock_init(&__thread_id_map_mutex); - __thread_id_map[0] = pthread_self(); - for (i = 1; i < NR_THREADS; i++) - __thread_id_map[i] = __THREAD_ID_MAP_EMPTY; - init_per_thread(smp_processor_id, 0); - if (pthread_key_create(&thread_id_key, NULL) != 0) { - perror("pthread_key_create"); - exit(-1); - } -} - -/* - * api-gcc.h: API mapping to pthreads gcc environment. - * Uses C11-like gcc intrinsics. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. However, please note that much - * of the code in this file derives from the Linux kernel, and that such - * code may not be available except under GPLv2. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, you can access it online at - * http://www.gnu.org/licenses/gpl-2.0.html. - * - * Copyright (c) 2016 Paul E. McKenney, IBM. - */ - -/* - * Atomic data structure, initialization, and access. - */ - -typedef struct { volatile int counter; } atomic_t; - -#define ATOMIC_INIT(i) { (i) } - -#define atomic_read(v) \ - __atomic_load_n(&(v)->counter, __ATOMIC_RELAXED) -#define atomic_set(v, i) \ - __atomic_store_n(&(v)->counter, (i), __ATOMIC_RELAXED) -#define smp_load_acquire(p) \ - __atomic_load_n(p, __ATOMIC_ACQUIRE) -#define smp_store_release(p, i) \ - __atomic_store_n(p, (i), __ATOMIC_RELEASE) - -/* - * Atomic operations. - */ - -/** - * atomic_add - add integer to atomic variable - * @i: integer value to add - * @v: pointer of type atomic_t - * - * Atomically adds @i to @v. - */ -static __inline__ void atomic_add(int i, atomic_t *v) -{ - __atomic_add_fetch(&v->counter, i, __ATOMIC_RELAXED); -} - -/** - * atomic_sub - subtract the atomic variable - * @i: integer value to subtract - * @v: pointer of type atomic_t - * - * Atomically subtracts @i from @v. - */ -static __inline__ void atomic_sub(int i, atomic_t *v) -{ - __atomic_sub_fetch(&v->counter, i, __ATOMIC_RELAXED); -} - -/** - * atomic_sub_and_test - subtract value from variable and test result - * @i: integer value to subtract - * @v: pointer of type atomic_t - * - * Atomically subtracts @i from @v and returns - * true if the result is zero, or false for all - * other cases. - */ -static __inline__ int atomic_sub_and_test(int i, atomic_t *v) -{ - return __atomic_sub_fetch(&v->counter, i, __ATOMIC_SEQ_CST) == 0; -} - -/** - * atomic_inc - increment atomic variable - * @v: pointer of type atomic_t - * - * Atomically increments @v by 1. - */ -static __inline__ void atomic_inc(atomic_t *v) -{ - atomic_add(1, v); -} - -/** - * atomic_dec - decrement atomic variable - * @v: pointer of type atomic_t - * - * Atomically decrements @v by 1. - */ -static __inline__ void atomic_dec(atomic_t *v) -{ - atomic_sub(1, v); -} - -/** - * atomic_dec_and_test - decrement and test - * @v: pointer of type atomic_t - * - * Atomically decrements @v by 1 and - * returns true if the result is 0, or false for all other - * cases. - */ -static __inline__ int atomic_dec_and_test(atomic_t *v) -{ - return atomic_sub_and_test(1, v); -} - -/** - * atomic_inc_and_test - increment and test - * @v: pointer of type atomic_t - * - * Atomically increments @v by 1 - * and returns true if the result is zero, or false for all - * other cases. - */ -static __inline__ int atomic_inc_and_test(atomic_t *v) -{ - return __atomic_add_fetch(&v->counter, 1, __ATOMIC_SEQ_CST) == 0; -} - -/** - * atomic_add_negative - add and test if negative - * @v: pointer of type atomic_t - * @i: integer value to add - * - * Atomically adds @i to @v and returns true - * if the result is negative, or false when - * result is greater than or equal to zero. - */ -static __inline__ int atomic_add_negative(int i, atomic_t *v) -{ - return __atomic_add_fetch(&v->counter, 1, __ATOMIC_SEQ_CST) < 0; -} - -/** - * atomic_add_return - add and return - * @v: pointer of type atomic_t - * @i: integer value to add - * - * Atomically adds @i to @v and returns @i + @v - */ -static __inline__ int atomic_add_return(int i, atomic_t *v) -{ - return __atomic_add_fetch(&v->counter, 1, __ATOMIC_SEQ_CST); -} - -static __inline__ int atomic_sub_return(int i, atomic_t *v) -{ - return atomic_add_return(-i, v); -} - -struct __xchg_dummy { - unsigned long a[100]; -}; -#define __xg(x) ((struct __xchg_dummy *)(x)) - -#define cmpxchg(ptr, o, n) \ -({ \ - typeof(*ptr) _____actual = (o); \ - \ - (void)__atomic_compare_exchange_n(ptr, (void *)&_____actual, (n), 1, \ - __ATOMIC_SEQ_CST, __ATOMIC_SEQ_CST); \ - _____actual; \ -}) - -static __inline__ int atomic_cmpxchg(atomic_t *v, int old, int new) -{ - return cmpxchg(&v->counter, old, new); -} - -#define xchg(ptr, v) __atomic_exchange_n((ptr), (v), __ATOMIC_SEQ_CST) -#define atomic_xchg(ptr, v) \ - __atomic_exchange_n(&(ptr)->counter, (v), __ATOMIC_SEQ_CST) - -/** - * atomic_add_unless - add unless the number is a given value - * @v: pointer of type atomic_t - * @a: the amount to add to v... - * @u: ...unless v is equal to u. - * - * Atomically adds @a to @v, so long as it was not @u. - * Returns non-zero if @v was not @u, and zero otherwise. - */ -#define atomic_add_unless(v, a, u) \ -({ \ - int c, old; \ - c = atomic_read(v); \ - for (;;) { \ - if (unlikely(c == (u))) \ - break; \ - old = atomic_cmpxchg((v), c, c + (a)); \ - if (likely(old == c)) \ - break; \ - c = old; \ - } \ - c != (u); \ -}) -#define atomic_inc_not_zero(v) atomic_add_unless((v), 1, 0) - -#define atomic_inc_return(v) (atomic_add_return(1,v)) -#define atomic_dec_return(v) (atomic_sub_return(1,v)) - -#define _LGPL_SOURCE -#include <urcu/rculist.h> -#include <urcu/rcuhlist.h> -#include <urcu-pointer.h> -#endif /* #ifndef __PERFBOOK_API_H__ */ diff --git a/CodeSamples/datastruct/Issaquah/existence_test b/CodeSamples/datastruct/Issaquah/existence_test deleted file mode 100755 index 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