mirror of
https://github.com/denoland/deno.git
synced 2024-11-30 16:40:57 -05:00
41c7e96f1a
* In order to prevent ArrayBuffers from getting garbage collected by V8, we used to store a v8::Persistent<ArrayBuffer> in a map. This patch introduces a custom ArrayBuffer allocator which doesn't use Persistent handles, but instead stores a pointer to the actual ArrayBuffer data alongside with a reference count. Since creating Persistent handles has quite a bit of overhead, this change significantly increases performance. Various HTTP server benchmarks report about 5-10% more requests per second than before. * Previously the Persistent handle that prevented garbage collection had to be released manually, and this wasn't always done, which was causing memory leaks. This has been resolved by introducing a new `PinnedBuf` type in both Rust and C++ that automatically re-enables garbage collection when it goes out of scope. * Zero-copy buffers are now correctly wrapped in an Option if there is a possibility that they're not present. This clears up a correctness issue where we were creating zero-length slices from a null pointer, which is against the rules.
109 lines
2.3 KiB
Text
109 lines
2.3 KiB
Text
# Copyright 2018-2019 the Deno authors. All rights reserved. MIT license.
|
|
import("//deno.gni")
|
|
import("//third_party/v8/gni/v8.gni")
|
|
|
|
config("deno_config") {
|
|
include_dirs = [ "//third_party/v8" ] # This allows us to v8/src/base/ libraries.
|
|
configs = [ "//third_party/v8:external_config" ]
|
|
cflags = []
|
|
|
|
if (is_debug) {
|
|
defines = [ "DEBUG" ]
|
|
}
|
|
|
|
if (is_clang) {
|
|
cflags += [
|
|
"-fcolor-diagnostics",
|
|
"-fansi-escape-codes",
|
|
]
|
|
if (is_debug) {
|
|
cflags += [ "-glldb" ]
|
|
}
|
|
}
|
|
|
|
if (is_win) {
|
|
# The `/Zl` ("omit default library name") flag makes the compiler produce
|
|
# object files that can link with both the static and dynamic CRT.
|
|
cflags += [ "/Zl" ]
|
|
}
|
|
}
|
|
|
|
v8_source_set("v8") {
|
|
deps = [
|
|
"//third_party/v8:v8",
|
|
"//third_party/v8:v8_libbase",
|
|
"//third_party/v8:v8_libplatform",
|
|
"//third_party/v8:v8_libsampler",
|
|
]
|
|
configs = [ ":deno_config" ]
|
|
}
|
|
|
|
# Only functionality needed for libdeno_test and snapshot_creator
|
|
# In particular no flatbuffers, no assets, no rust, no msg handlers.
|
|
# Because snapshots are slow, it's important that snapshot_creator's
|
|
# dependencies are minimal.
|
|
v8_source_set("libdeno") {
|
|
sources = [
|
|
"api.cc",
|
|
"binding.cc",
|
|
"buffer.h",
|
|
"deno.h",
|
|
"exceptions.cc",
|
|
"exceptions.h",
|
|
"file_util.cc",
|
|
"file_util.h",
|
|
"internal.h",
|
|
"modules.cc",
|
|
]
|
|
deps = [
|
|
":v8",
|
|
]
|
|
configs = [ ":deno_config" ]
|
|
}
|
|
|
|
# The cargo-driven build links with libdeno to pull in all non-rust code.
|
|
v8_static_library("libdeno_static_lib") {
|
|
output_name = "libdeno"
|
|
deps = [
|
|
":libdeno",
|
|
"//build/config:shared_library_deps",
|
|
]
|
|
configs = [ ":deno_config" ]
|
|
}
|
|
|
|
v8_executable("snapshot_creator") {
|
|
sources = [
|
|
"snapshot_creator.cc",
|
|
]
|
|
deps = [
|
|
":libdeno",
|
|
]
|
|
configs = [ ":deno_config" ]
|
|
}
|
|
|
|
v8_executable("libdeno_test") {
|
|
testonly = true
|
|
sources = [
|
|
"file_util_test.cc",
|
|
"libdeno_test.cc",
|
|
"modules_test.cc",
|
|
"test.cc",
|
|
]
|
|
deps = [
|
|
":libdeno",
|
|
":snapshot_test",
|
|
"//testing/gtest:gtest",
|
|
]
|
|
data = [
|
|
"$target_gen_dir/snapshot_test.bin",
|
|
]
|
|
snapshot_path = rebase_path(data[0], root_build_dir)
|
|
defines = [ "SNAPSHOT_PATH=\"$snapshot_path\"" ]
|
|
configs = [ ":deno_config" ]
|
|
}
|
|
|
|
# Generates $target_gen_dir/snapshot_test.bin
|
|
snapshot("snapshot_test") {
|
|
testonly = true
|
|
source_root = "libdeno_test.js"
|
|
}
|