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Diffstat (limited to 'test/bench/threadring.c')
-rw-r--r-- | test/bench/threadring.c | 102 |
1 files changed, 0 insertions, 102 deletions
diff --git a/test/bench/threadring.c b/test/bench/threadring.c deleted file mode 100644 index 2c4fb7751..000000000 --- a/test/bench/threadring.c +++ /dev/null @@ -1,102 +0,0 @@ -/* -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. - - * Neither the name of "The Computer Language Benchmarks Game" nor the - name of "The Computer Language Shootout Benchmarks" nor the names of - its contributors may be used to endorse or promote products derived - from this software without specific prior written permission. - -THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "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 COPYRIGHT OWNER OR CONTRIBUTORS 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. -*/ - -/* -* The Computer Language Benchmarks Game -* http://shootout.alioth.debian.org/ - -* contributed by Premysl Hruby -*/ - -#include <stdio.h> -#include <stdlib.h> -#include <pthread.h> -#include <string.h> -#include <limits.h> - -#define THREADS (503) - - -struct stack { - char x[PTHREAD_STACK_MIN]; -}; - - -/* staticaly initialize mutex[0] mutex */ -static pthread_mutex_t mutex[THREADS]; -static int data[THREADS]; -static struct stack stacks[THREADS]; -/* stacks must be defined staticaly, or my i386 box run of virtual memory for this - * process while creating thread +- #400 */ - -static void* thread(void *num) -{ - int l = (int)num; - int r = (l+1) % THREADS; - int token; - - while(1) { - pthread_mutex_lock(mutex + l); - token = data[l]; - if (token) { - data[r] = token - 1; - pthread_mutex_unlock(mutex + r); - } - else { - printf("%i\n", l+1); - exit(0); - } - } -} - - - -int main(int argc, char **argv) -{ - int i; - pthread_t cthread; - pthread_attr_t stack_attr; - - if (argc != 2) - exit(255); - data[0] = atoi(argv[1]); - - pthread_attr_init(&stack_attr); - - for (i = 0; i < THREADS; i++) { - pthread_mutex_init(mutex + i, NULL); - pthread_mutex_lock(mutex + i); - - pthread_attr_setstack(&stack_attr, &stacks[i], sizeof(struct stack)); - pthread_create(&cthread, &stack_attr, thread, (void*)i); - } - - pthread_mutex_unlock(mutex + 0); - pthread_join(cthread, NULL); -} |