mirror of
https://github.com/ilyakooo0/urbit.git
synced 2024-12-23 14:55:48 +03:00
165 lines
3.9 KiB
C
165 lines
3.9 KiB
C
/* Copyright Joyent, Inc. and other Node contributors. 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 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 THE
|
|
* AUTHORS OR COPYRIGHT HOLDERS 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.
|
|
*/
|
|
|
|
/* This benchmark spawns itself 1000 times. */
|
|
|
|
#include "task.h"
|
|
#include "uv.h"
|
|
|
|
static uv_loop_t* loop;
|
|
|
|
static int N = 1000;
|
|
static int done;
|
|
|
|
static uv_process_t process;
|
|
static uv_process_options_t options;
|
|
static char exepath[1024];
|
|
static size_t exepath_size = 1024;
|
|
static char* args[3];
|
|
static uv_pipe_t out;
|
|
|
|
#define OUTPUT_SIZE 1024
|
|
static char output[OUTPUT_SIZE];
|
|
static int output_used;
|
|
|
|
static int process_open;
|
|
static int pipe_open;
|
|
|
|
|
|
static void spawn(void);
|
|
|
|
|
|
static void maybe_spawn(void) {
|
|
if (process_open == 0 && pipe_open == 0) {
|
|
done++;
|
|
if (done < N) {
|
|
spawn();
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
static void process_close_cb(uv_handle_t* handle) {
|
|
ASSERT(process_open == 1);
|
|
process_open = 0;
|
|
maybe_spawn();
|
|
}
|
|
|
|
|
|
static void exit_cb(uv_process_t* process,
|
|
int64_t exit_status,
|
|
int term_signal) {
|
|
ASSERT(exit_status == 42);
|
|
ASSERT(term_signal == 0);
|
|
uv_close((uv_handle_t*)process, process_close_cb);
|
|
}
|
|
|
|
|
|
static void on_alloc(uv_handle_t* handle,
|
|
size_t suggested_size,
|
|
uv_buf_t* buf) {
|
|
buf->base = output + output_used;
|
|
buf->len = OUTPUT_SIZE - output_used;
|
|
}
|
|
|
|
|
|
static void pipe_close_cb(uv_handle_t* pipe) {
|
|
ASSERT(pipe_open == 1);
|
|
pipe_open = 0;
|
|
maybe_spawn();
|
|
}
|
|
|
|
|
|
static void on_read(uv_stream_t* pipe, ssize_t nread, const uv_buf_t* buf) {
|
|
if (nread > 0) {
|
|
ASSERT(pipe_open == 1);
|
|
output_used += nread;
|
|
} else if (nread < 0) {
|
|
if (nread == UV_EOF) {
|
|
uv_close((uv_handle_t*)pipe, pipe_close_cb);
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
static void spawn(void) {
|
|
uv_stdio_container_t stdio[2];
|
|
int r;
|
|
|
|
ASSERT(process_open == 0);
|
|
ASSERT(pipe_open == 0);
|
|
|
|
args[0] = exepath;
|
|
args[1] = "spawn_helper";
|
|
args[2] = NULL;
|
|
options.file = exepath;
|
|
options.args = args;
|
|
options.exit_cb = exit_cb;
|
|
|
|
uv_pipe_init(loop, &out, 0);
|
|
|
|
options.stdio = stdio;
|
|
options.stdio_count = 2;
|
|
options.stdio[0].flags = UV_IGNORE;
|
|
options.stdio[1].flags = UV_CREATE_PIPE | UV_WRITABLE_PIPE;
|
|
options.stdio[1].data.stream = (uv_stream_t*)&out;
|
|
|
|
r = uv_spawn(loop, &process, &options);
|
|
ASSERT(r == 0);
|
|
|
|
process_open = 1;
|
|
pipe_open = 1;
|
|
output_used = 0;
|
|
|
|
r = uv_read_start((uv_stream_t*) &out, on_alloc, on_read);
|
|
ASSERT(r == 0);
|
|
}
|
|
|
|
|
|
BENCHMARK_IMPL(spawn) {
|
|
int r;
|
|
static int64_t start_time, end_time;
|
|
|
|
loop = uv_default_loop();
|
|
|
|
r = uv_exepath(exepath, &exepath_size);
|
|
ASSERT(r == 0);
|
|
exepath[exepath_size] = '\0';
|
|
|
|
uv_update_time(loop);
|
|
start_time = uv_now(loop);
|
|
|
|
spawn();
|
|
|
|
r = uv_run(loop, UV_RUN_DEFAULT);
|
|
ASSERT(r == 0);
|
|
|
|
uv_update_time(loop);
|
|
end_time = uv_now(loop);
|
|
|
|
fprintf(stderr, "spawn: %.0f spawns/s\n",
|
|
(double) N / (double) (end_time - start_time) * 1000.0);
|
|
fflush(stderr);
|
|
|
|
MAKE_VALGRIND_HAPPY();
|
|
return 0;
|
|
}
|