# Copyright 2019 The Fuchsia Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.

import("//build/cpp/extract_imported_symbols.gni")
import("//build/cpp/library_headers.gni")
import("//build/cpp/verify_imported_symbols.gni")
import("//build/cpp/verify_public_symbols.gni")

library_headers("headers") {
  headers = [
    "lib/zxio/null.h",
    "lib/zxio/ops.h",
    "lib/zxio/fault_catcher.h",
    "lib/zxio/posix_mode.h",
    "lib/zxio/bsdsocket.h",
    "lib/zxio/types.h",
    "lib/zxio/zxio.h",
  ]
}

# This is a header-only library that provides type safe C++ wrappers around the
# zxio_create_with_type() entry point.
library_headers("create_with_type") {
  headers = [ "lib/zxio/cpp/create_with_type.h" ]

  public_deps = [
    ":headers",
    "//sdk/fidl/fuchsia.io:fuchsia.io_cpp",
    "//zircon/system/ulib/zx",
  ]
}

# This header exposes implementation details of the zxio library in order to
# facilitate moving logic from fdio into zxio. It should not be used outside of
# these two libraries.
library_headers("inception") {
  headers = [
    "lib/zxio/cpp/inception.h",
    "lib/zxio/cpp/transitional.h",
  ]

  public_deps = [
    ":headers",

    # <lib/zxio/cpp/inception.h> has #include <fidl/fuchsia.io/cpp/wire.h>.
    "//sdk/fidl/fuchsia.io:fuchsia.io_cpp",
  ]

  visibility = [
    "//sdk/lib/fdio/*",
    "//sdk/lib/zxio/*",
  ]
}

source_set("zxio") {
  sources = [
    "create.cc",
    "debuglog.cc",
    "dgram_cache.cc",
    "fault_catcher.cc",
    "get_vmo.cc",
    "inception.cc",
    "null.cc",
    "pipe.cc",
    "remote.cc",
    "socket.cc",
    "socket_address.cc",
    "transitional.cc",
    "vmo.cc",
    "zxio.cc",
  ]
  public_deps = [ ":headers" ]
  deps = [
    "//sdk/fidl/fuchsia.device:fuchsia.device_cpp",
    "//sdk/fidl/fuchsia.hardware.pty:fuchsia.hardware.pty_cpp",
    "//sdk/fidl/fuchsia.io:fuchsia.io_cpp",
    "//sdk/fidl/fuchsia.net.name:fuchsia.net.name_cpp",
    "//sdk/fidl/fuchsia.posix.socket:fuchsia.posix.socket_cpp",
    "//sdk/fidl/fuchsia.posix.socket.packet:fuchsia.posix.socket.packet_cpp",
    "//sdk/fidl/fuchsia.posix.socket.raw:fuchsia.posix.socket.raw_cpp",
    "//sdk/lib/stdcompat",
    "//sdk/lib/zxio:inception",
    "//src/connectivity/network/netstack/udp_serde",
    "//zircon/system/ulib/zx",
    "//zircon/third_party/ulib/safemath",
  ]

  # TODO(https://fxbug.dev/42085293): delete the below and fix compiler warnings
  configs += [ "//build/config:Wno-vla-cxx-extension" ]
}

shared_library("zxio_standalone") {
  visibility = [ ":*" ]

  public_deps = [ ":zxio" ]

  configs += [ "//build/config/fuchsia:static_cpp_standard_library" ]

  version_script = "zxio_standalone.ld"
  inputs = [ version_script ]
  ldflags =
      [ "-Wl,--version-script=" + rebase_path(version_script, root_build_dir) ]
}

shared_out_dir =
    get_label_info(":zxio_standalone($shlib_toolchain)", "root_out_dir")
zxio_standalone_library = "$shared_out_dir/libzxio_standalone.so"

generated_imported_symbols_list =
    "$target_gen_dir/zxio_standalone.imported_symbols.list"
generated_public_symbols_list = "$shared_out_dir/libzxio_standalone.ifs"

extract_imported_symbols("zxio_standalone_extract_imported_symbols") {
  library = zxio_standalone_library
  symbols = generated_imported_symbols_list

  deps = [ ":zxio_standalone($shlib_toolchain)" ]
}

verify_imported_symbols("zxio_standalone_verify_imported_symbols") {
  current = generated_imported_symbols_list
  allowlist = rebase_path("zxio_standalone.imported_symbols.allowlist")
  library_name = "zxio_standalone"

  deps = [ ":zxio_standalone_extract_imported_symbols" ]
}

verify_public_symbols("zxio_standalone_verify_public_symbols") {
  current = generated_public_symbols_list
  reference = rebase_path("zxio_standalone.public_symbols.ifs")
  library_name = "zxio_standalone"

  deps = [ ":zxio_standalone($shlib_toolchain)" ]
}

group("standalone") {
  public_deps = [ ":zxio_standalone" ]

  deps = [ ":zxio_standalone_verify_public_symbols" ]

  # Only verify the imported symbols in uninstrumented variants as some variants
  # such as ASan / UBSan insert additional runtime dependencies.
  if (!toolchain_variant.instrumented) {
    deps += [ ":zxio_standalone_verify_imported_symbols" ]
  }
}

group("tests") {
  testonly = true
  deps = [ "tests" ]
}