diff options
| -rw-r--r-- | .gitignore | 1 | ||||
| -rw-r--r-- | tests/Makefile.am | 8 | ||||
| -rw-r--r-- | tests/drmsl.c | 172 | ||||
| -rw-r--r-- | xf86drmSL.c | 172 |
4 files changed, 184 insertions, 169 deletions
@@ -74,6 +74,7 @@ tdfx.kld via.kld tests/auth tests/dristat +tests/drmsl tests/drmstat tests/getclient tests/getstats diff --git a/tests/Makefile.am b/tests/Makefile.am index 10f54e31..75fc2413 100644 --- a/tests/Makefile.am +++ b/tests/Makefile.am @@ -35,6 +35,9 @@ if HAVE_NOUVEAU SUBDIRS += nouveau endif +TESTS = \ + drmsl + if HAVE_LIBUDEV check_LTLIBRARIES = libdrmtest.la @@ -52,7 +55,7 @@ XFAIL_TESTS = \ auth \ lock -TESTS = \ +TESTS += \ openclose \ getversion \ getclient \ @@ -60,7 +63,6 @@ TESTS = \ setversion \ updatedraw \ name_from_fd +endif check_PROGRAMS += $(TESTS) - -endif diff --git a/tests/drmsl.c b/tests/drmsl.c new file mode 100644 index 00000000..d0ac0efa --- /dev/null +++ b/tests/drmsl.c @@ -0,0 +1,172 @@ +/* drmsl.c -- Skip list test + * Created: Mon May 10 09:28:13 1999 by faith@precisioninsight.com + * + * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER + * DEALINGS IN THE SOFTWARE. + * + * Authors: Rickard E. (Rik) Faith <faith@valinux.com> + * + * DESCRIPTION + * + * This file contains a straightforward skip list implementation.n + * + * FUTURE ENHANCEMENTS + * + * REFERENCES + * + * [Pugh90] William Pugh. Skip Lists: A Probabilistic Alternative to + * Balanced Trees. CACM 33(6), June 1990, pp. 668-676. + * + */ + +#include <stdio.h> +#include <stdlib.h> +#include <sys/time.h> + +#include "xf86drm.h" + +static void print(void* list) +{ + unsigned long key; + void *value; + + if (drmSLFirst(list, &key, &value)) { + do { + printf("key = %5lu, value = %p\n", key, value); + } while (drmSLNext(list, &key, &value)); + } +} + +static double do_time(int size, int iter) +{ + void *list; + int i, j; + unsigned long keys[1000000]; + unsigned long previous; + unsigned long key; + void *value; + struct timeval start, stop; + double usec; + void *ranstate; + + list = drmSLCreate(); + ranstate = drmRandomCreate(12345); + + for (i = 0; i < size; i++) { + keys[i] = drmRandom(ranstate); + drmSLInsert(list, keys[i], NULL); + } + + previous = 0; + if (drmSLFirst(list, &key, &value)) { + do { + if (key <= previous) { + printf( "%lu !< %lu\n", previous, key); + } + previous = key; + } while (drmSLNext(list, &key, &value)); + } + + gettimeofday(&start, NULL); + for (j = 0; j < iter; j++) { + for (i = 0; i < size; i++) { + if (drmSLLookup(list, keys[i], &value)) + printf("Error %lu %d\n", keys[i], i); + } + } + gettimeofday(&stop, NULL); + + usec = (double)(stop.tv_sec * 1000000 + stop.tv_usec + - start.tv_sec * 1000000 - start.tv_usec) / (size * iter); + + printf("%0.2f microseconds for list length %d\n", usec, size); + + drmRandomDouble(ranstate); + drmSLDestroy(list); + + return usec; +} + +static void print_neighbors(void *list, unsigned long key) +{ + unsigned long prev_key = 0; + unsigned long next_key = 0; + void *prev_value; + void *next_value; + int retval; + + retval = drmSLLookupNeighbors(list, key, + &prev_key, &prev_value, + &next_key, &next_value); + printf("Neighbors of %5lu: %d %5lu %5lu\n", + key, retval, prev_key, next_key); +} + +int main(void) +{ + void* list; + double usec, usec2, usec3, usec4; + + list = drmSLCreate(); + printf( "list at %p\n", list); + + print(list); + printf("\n==============================\n\n"); + + drmSLInsert(list, 123, NULL); + drmSLInsert(list, 213, NULL); + drmSLInsert(list, 50, NULL); + print(list); + printf("\n==============================\n\n"); + + print_neighbors(list, 0); + print_neighbors(list, 50); + print_neighbors(list, 51); + print_neighbors(list, 123); + print_neighbors(list, 200); + print_neighbors(list, 213); + print_neighbors(list, 256); + printf("\n==============================\n\n"); + + drmSLDelete(list, 50); + print(list); + printf("\n==============================\n\n"); + + drmSLDump(list); + drmSLDestroy(list); + printf("\n==============================\n\n"); + + usec = do_time(100, 10000); + usec2 = do_time(1000, 500); + printf("Table size increased by %0.2f, search time increased by %0.2f\n", + 1000.0/100.0, usec2 / usec); + + usec3 = do_time(10000, 50); + printf("Table size increased by %0.2f, search time increased by %0.2f\n", + 10000.0/100.0, usec3 / usec); + + usec4 = do_time(100000, 4); + printf("Table size increased by %0.2f, search time increased by %0.2f\n", + 100000.0/100.0, usec4 / usec); + + return 0; +} diff --git a/xf86drmSL.c b/xf86drmSL.c index cf588ac9..bb9ca7f1 100644 --- a/xf86drmSL.c +++ b/xf86drmSL.c @@ -41,13 +41,7 @@ #include <stdio.h> #include <stdlib.h> -#define SL_MAIN 0 - -#if !SL_MAIN -# include "xf86drm.h" -#else -# include <sys/time.h> -#endif +#include "xf86drm.h" #define SL_LIST_MAGIC 0xfacade00LU #define SL_ENTRY_MAGIC 0x00fab1edLU @@ -56,21 +50,10 @@ #define SL_DEBUG 0 #define SL_RANDOM_SEED 0xc01055a1LU -#if SL_MAIN -#define SL_ALLOC malloc -#define SL_FREE free -#define SL_RANDOM_DECL static int state = 0; -#define SL_RANDOM_INIT(seed) if (!state) { srandom(seed); ++state; } -#define SL_RANDOM random() -#else -#define SL_ALLOC drmMalloc -#define SL_FREE drmFree #define SL_RANDOM_DECL static void *state = NULL #define SL_RANDOM_INIT(seed) if (!state) state = drmRandomCreate(seed) #define SL_RANDOM drmRandom(state) -#endif - typedef struct SLEntry { unsigned long magic; /* SL_ENTRY_MAGIC */ unsigned long key; @@ -87,27 +70,13 @@ typedef struct SkipList { SLEntryPtr p0; /* Position for iteration */ } SkipList, *SkipListPtr; -#if SL_MAIN -extern void *drmSLCreate(void); -extern int drmSLDestroy(void *l); -extern int drmSLLookup(void *l, unsigned long key, void **value); -extern int drmSLInsert(void *l, unsigned long key, void *value); -extern int drmSLDelete(void *l, unsigned long key); -extern int drmSLNext(void *l, unsigned long *key, void **value); -extern int drmSLFirst(void *l, unsigned long *key, void **value); -extern void drmSLDump(void *l); -extern int drmSLLookupNeighbors(void *l, unsigned long key, - unsigned long *prev_key, void **prev_value, - unsigned long *next_key, void **next_value); -#endif - static SLEntryPtr SLCreateEntry(int max_level, unsigned long key, void *value) { SLEntryPtr entry; if (max_level < 0 || max_level > SL_MAX_LEVEL) max_level = SL_MAX_LEVEL; - entry = SL_ALLOC(sizeof(*entry) + entry = drmMalloc(sizeof(*entry) + (max_level + 1) * sizeof(entry->forward[0])); if (!entry) return NULL; entry->magic = SL_ENTRY_MAGIC; @@ -134,7 +103,7 @@ void *drmSLCreate(void) SkipListPtr list; int i; - list = SL_ALLOC(sizeof(*list)); + list = drmMalloc(sizeof(*list)); if (!list) return NULL; list->magic = SL_LIST_MAGIC; list->level = 0; @@ -158,11 +127,11 @@ int drmSLDestroy(void *l) if (entry->magic != SL_ENTRY_MAGIC) return -1; /* Bad magic */ next = entry->forward[0]; entry->magic = SL_FREED_MAGIC; - SL_FREE(entry); + drmFree(entry); } list->magic = SL_FREED_MAGIC; - SL_FREE(list); + drmFree(list); return 0; } @@ -236,7 +205,7 @@ int drmSLDelete(void *l, unsigned long key) } entry->magic = SL_FREED_MAGIC; - SL_FREE(entry); + drmFree(entry); while (list->level && !list->head->forward[list->level]) --list->level; --list->count; @@ -348,132 +317,3 @@ void drmSLDump(void *l) } } } - -#if SL_MAIN -static void print(SkipListPtr list) -{ - unsigned long key; - void *value; - - if (drmSLFirst(list, &key, &value)) { - do { - printf("key = %5lu, value = %p\n", key, value); - } while (drmSLNext(list, &key, &value)); - } -} - -static double do_time(int size, int iter) -{ - SkipListPtr list; - int i, j; - unsigned long keys[1000000]; - unsigned long previous; - unsigned long key; - void *value; - struct timeval start, stop; - double usec; - SL_RANDOM_DECL; - - SL_RANDOM_INIT(12345); - - list = drmSLCreate(); - - for (i = 0; i < size; i++) { - keys[i] = SL_RANDOM; - drmSLInsert(list, keys[i], NULL); - } - - previous = 0; - if (drmSLFirst(list, &key, &value)) { - do { - if (key <= previous) { - printf( "%lu !< %lu\n", previous, key); - } - previous = key; - } while (drmSLNext(list, &key, &value)); - } - - gettimeofday(&start, NULL); - for (j = 0; j < iter; j++) { - for (i = 0; i < size; i++) { - if (drmSLLookup(list, keys[i], &value)) - printf("Error %lu %d\n", keys[i], i); - } - } - gettimeofday(&stop, NULL); - - usec = (double)(stop.tv_sec * 1000000 + stop.tv_usec - - start.tv_sec * 1000000 - start.tv_usec) / (size * iter); - - printf("%0.2f microseconds for list length %d\n", usec, size); - - drmSLDestroy(list); - - return usec; -} - -static void print_neighbors(void *list, unsigned long key) -{ - unsigned long prev_key = 0; - unsigned long next_key = 0; - void *prev_value; - void *next_value; - int retval; - - retval = drmSLLookupNeighbors(list, key, - &prev_key, &prev_value, - &next_key, &next_value); - printf("Neighbors of %5lu: %d %5lu %5lu\n", - key, retval, prev_key, next_key); -} - -int main(void) -{ - SkipListPtr list; - double usec, usec2, usec3, usec4; - - list = drmSLCreate(); - printf( "list at %p\n", list); - - print(list); - printf("\n==============================\n\n"); - - drmSLInsert(list, 123, NULL); - drmSLInsert(list, 213, NULL); - drmSLInsert(list, 50, NULL); - print(list); - printf("\n==============================\n\n"); - - print_neighbors(list, 0); - print_neighbors(list, 50); - print_neighbors(list, 51); - print_neighbors(list, 123); - print_neighbors(list, 200); - print_neighbors(list, 213); - print_neighbors(list, 256); - printf("\n==============================\n\n"); - - drmSLDelete(list, 50); - print(list); - printf("\n==============================\n\n"); - - drmSLDump(list); - drmSLDestroy(list); - printf("\n==============================\n\n"); - - usec = do_time(100, 10000); - usec2 = do_time(1000, 500); - printf("Table size increased by %0.2f, search time increased by %0.2f\n", - 1000.0/100.0, usec2 / usec); - - usec3 = do_time(10000, 50); - printf("Table size increased by %0.2f, search time increased by %0.2f\n", - 10000.0/100.0, usec3 / usec); - - usec4 = do_time(100000, 4); - printf("Table size increased by %0.2f, search time increased by %0.2f\n", - 100000.0/100.0, usec4 / usec); - - return 0; -} -#endif |