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Diffstat (limited to 'test/core/support/stack_lockfree_test.c')
-rw-r--r-- | test/core/support/stack_lockfree_test.c | 154 |
1 files changed, 154 insertions, 0 deletions
diff --git a/test/core/support/stack_lockfree_test.c b/test/core/support/stack_lockfree_test.c new file mode 100644 index 0000000000..42082de389 --- /dev/null +++ b/test/core/support/stack_lockfree_test.c @@ -0,0 +1,154 @@ +/* + * + * Copyright 2015, Google Inc. + * 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. + * * Neither the name of Google Inc. 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. + * + */ + +#include "src/core/support/stack_lockfree.h" + +#include <stdlib.h> + +#include <grpc/support/alloc.h> +#include <grpc/support/log.h> +#include <grpc/support/sync.h> +#include <grpc/support/thd.h> +#include "test/core/util/test_config.h" + +/* max stack size supported */ +#define MAX_STACK_SIZE 65534 + +#define MAX_THREADS 32 + +static void test_serial_sized(int size) { + gpr_stack_lockfree *stack = gpr_stack_lockfree_create(size); + int i; + + /* First try popping empty */ + GPR_ASSERT(gpr_stack_lockfree_pop(stack) == -1); + + /* Now add one item and check it */ + gpr_stack_lockfree_push(stack, 3); + GPR_ASSERT(gpr_stack_lockfree_pop(stack) == 3); + GPR_ASSERT(gpr_stack_lockfree_pop(stack) == -1); + + /* Now add repeatedly more items and check them */ + for (i = 1; i < size; i *= 2) { + int j; + for (j = 0; j <= i; j++) { + gpr_stack_lockfree_push(stack, j); + } + for (j = 0; j <= i; j++) { + GPR_ASSERT(gpr_stack_lockfree_pop(stack) == i - j); + } + GPR_ASSERT(gpr_stack_lockfree_pop(stack) == -1); + } + + gpr_stack_lockfree_destroy(stack); +} + +static void test_serial() { + int i; + for (i = 128; i < MAX_STACK_SIZE; i *= 2) { + test_serial_sized(i); + } + test_serial_sized(MAX_STACK_SIZE); +} + +struct test_arg { + gpr_stack_lockfree *stack; + int stack_size; + int nthreads; + int rank; + int sum; +}; + +static void test_mt_body(void *v) { + struct test_arg *arg = (struct test_arg *)v; + int lo, hi; + int i; + int res; + lo = arg->rank * arg->stack_size / arg->nthreads; + hi = (arg->rank + 1) * arg->stack_size / arg->nthreads; + for (i = lo; i < hi; i++) { + gpr_stack_lockfree_push(arg->stack, i); + if ((res = gpr_stack_lockfree_pop(arg->stack)) != -1) { + arg->sum += res; + } + } + while ((res = gpr_stack_lockfree_pop(arg->stack)) != -1) { + arg->sum += res; + } +} + +static void test_mt_sized(int size, int nth) { + gpr_stack_lockfree *stack; + struct test_arg args[MAX_THREADS]; + gpr_thd_id thds[MAX_THREADS]; + int sum; + int i; + gpr_thd_options options = gpr_thd_options_default(); + + stack = gpr_stack_lockfree_create(size); + for (i = 0; i < nth; i++) { + args[i].stack = stack; + args[i].stack_size = size; + args[i].nthreads = nth; + args[i].rank = i; + args[i].sum = 0; + } + gpr_thd_options_set_joinable(&options); + for (i = 0; i < nth; i++) { + GPR_ASSERT(gpr_thd_new(&thds[i], test_mt_body, &args[i], &options)); + } + sum = 0; + for (i = 0; i < nth; i++) { + gpr_thd_join(thds[i]); + sum = sum + args[i].sum; + } + GPR_ASSERT((unsigned)sum == ((unsigned)size * (size - 1)) / 2); + gpr_stack_lockfree_destroy(stack); +} + +static void test_mt() { + int size, nth; + for (nth = 1; nth < MAX_THREADS; nth++) { + for (size = 128; size < MAX_STACK_SIZE; size *= 2) { + test_mt_sized(size, nth); + } + test_mt_sized(MAX_STACK_SIZE, nth); + } +} + +int main(int argc, char **argv) { + grpc_test_init(argc, argv); + test_serial(); + test_mt(); + return 0; +} |