Move webrtc/{base => rtc_base}

webrtc/base/flags.cc

Index: webrtc/base/flags.cc
diff --git a/webrtc/base/flags.cc b/webrtc/base/flags.cc
deleted file mode 100644
index 9b7177c22c15dd28f75c8b2076349fcb76c3983e..0000000000000000000000000000000000000000
--- a/webrtc/base/flags.cc
+++ /dev/null
@@ -1,299 +0,0 @@
-/*
- *  Copyright 2006 The WebRTC Project Authors. All rights reserved.
- *
- *  Use of this source code is governed by a BSD-style license
- *  that can be found in the LICENSE file in the root of the source
- *  tree. An additional intellectual property rights grant can be found
- *  in the file PATENTS.  All contributing project authors may
- *  be found in the AUTHORS file in the root of the source tree.
- */
-
-#include "webrtc/base/flags.h"
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-
-#include "webrtc/base/checks.h"
-
-#if defined(WEBRTC_WIN)
-#include "webrtc/base/win32.h"
-#include <shellapi.h>
-#endif
-
-namespace rtc {
-// -----------------------------------------------------------------------------
-// Implementation of Flag
-
-Flag::Flag(const char* file, const char* name, const char* comment,
-           Type type, void* variable, FlagValue default__)
-    : file_(file),
-      name_(name),
-      comment_(comment),
-      type_(type),
-      variable_(reinterpret_cast<FlagValue*>(variable)),
-      default_(default__) {
-  FlagList::Register(this);
-}
-
-
-void Flag::SetToDefault() {
-  // Note that we cannot simply do '*variable_ = default_;' since
-  // flag variables are not really of type FlagValue and thus may
-  // be smaller! The FlagValue union is simply 'overlayed' on top
-  // of a flag variable for convenient access. Since union members
-  // are guarantee to be aligned at the beginning, this works.
-  switch (type_) {
-    case Flag::BOOL:
-      variable_->b = default_.b;
-      return;
-    case Flag::INT:
-      variable_->i = default_.i;
-      return;
-    case Flag::FLOAT:
-      variable_->f = default_.f;
-      return;
-    case Flag::STRING:
-      variable_->s = default_.s;
-      return;
-  }
-  FATAL() << "unreachable code";
-}
-
-
-static const char* Type2String(Flag::Type type) {
-  switch (type) {
-    case Flag::BOOL: return "bool";
-    case Flag::INT: return "int";
-    case Flag::FLOAT: return "float";
-    case Flag::STRING: return "string";
-  }
-  FATAL() << "unreachable code";
-}
-
-
-static void PrintFlagValue(Flag::Type type, FlagValue* p) {
-  switch (type) {
-    case Flag::BOOL:
-      printf("%s", (p->b ? "true" : "false"));
-      return;
-    case Flag::INT:
-      printf("%d", p->i);
-      return;
-    case Flag::FLOAT:
-      printf("%f", p->f);
-      return;
-    case Flag::STRING:
-      printf("%s", p->s);
-      return;
-  }
-  FATAL() << "unreachable code";
-}
-
-
-void Flag::Print(bool print_current_value) {
-  printf("  --%s (%s)  type: %s  default: ", name_, comment_,
-          Type2String(type_));
-  PrintFlagValue(type_, &default_);
-  if (print_current_value) {
-    printf("  current value: ");
-    PrintFlagValue(type_, variable_);
-  }
-  printf("\n");
-}
-
-
-// -----------------------------------------------------------------------------
-// Implementation of FlagList
-
-Flag* FlagList::list_ = nullptr;
-
-FlagList::FlagList() {
-  list_ = nullptr;
-}
-
-void FlagList::Print(const char* file, bool print_current_value) {
-  // Since flag registration is likely by file (= C++ file),
-  // we don't need to sort by file and still get grouped output.
-  const char* current = nullptr;
-  for (Flag* f = list_; f != nullptr; f = f->next()) {
-    if (file == nullptr || file == f->file()) {
-      if (current != f->file()) {
-        printf("Flags from %s:\n", f->file());
-        current = f->file();
-      }
-      f->Print(print_current_value);
-    }
-  }
-}
-
-
-Flag* FlagList::Lookup(const char* name) {
-  Flag* f = list_;
-  while (f != nullptr && strcmp(name, f->name()) != 0)
-    f = f->next();
-  return f;
-}
-
-
-void FlagList::SplitArgument(const char* arg,
-                             char* buffer, int buffer_size,
-                             const char** name, const char** value,
-                             bool* is_bool) {
-  *name = nullptr;
-  *value = nullptr;
-  *is_bool = false;
-
-  if (*arg == '-') {
-    // find the begin of the flag name
-    arg++;  // remove 1st '-'
-    if (*arg == '-')
-      arg++;  // remove 2nd '-'
-    if (arg[0] == 'n' && arg[1] == 'o') {
-      arg += 2;  // remove "no"
-      *is_bool = true;
-    }
-    *name = arg;
-
-    // find the end of the flag name
-    while (*arg != '\0' && *arg != '=')
-      arg++;
-
-    // get the value if any
-    if (*arg == '=') {
-      // make a copy so we can NUL-terminate flag name
-      int n = static_cast<int>(arg - *name);
-      RTC_CHECK_LT(n, buffer_size);
-      memcpy(buffer, *name, n * sizeof(char));
-      buffer[n] = '\0';
-      *name = buffer;
-      // get the value
-      *value = arg + 1;
-    }
-  }
-}
-
-
-int FlagList::SetFlagsFromCommandLine(int* argc, const char** argv,
-                                      bool remove_flags) {
-  // parse arguments
-  for (int i = 1; i < *argc; /* see below */) {
-    int j = i;  // j > 0
-    const char* arg = argv[i++];
-
-    // split arg into flag components
-    char buffer[1024];
-    const char* name;
-    const char* value;
-    bool is_bool;
-    SplitArgument(arg, buffer, sizeof buffer, &name, &value, &is_bool);
-
-    if (name != nullptr) {
-      // lookup the flag
-      Flag* flag = Lookup(name);
-      if (flag == nullptr) {
-        fprintf(stderr, "Error: unrecognized flag %s\n", arg);
-        return j;
-      }
-
-      // if we still need a flag value, use the next argument if available
-      if (flag->type() != Flag::BOOL && value == nullptr) {
-        if (i < *argc) {
-          value = argv[i++];
-        } else {
-          fprintf(stderr, "Error: missing value for flag %s of type %s\n",
-            arg, Type2String(flag->type()));
-          return j;
-        }
-      }
-
-      // set the flag
-      char empty[] = { '\0' };
-      char* endp = empty;
-      switch (flag->type()) {
-        case Flag::BOOL:
-          *flag->bool_variable() = !is_bool;
-          break;
-        case Flag::INT:
-          *flag->int_variable() = strtol(value, &endp, 10);
-          break;
-        case Flag::FLOAT:
-          *flag->float_variable() = strtod(value, &endp);
-          break;
-        case Flag::STRING:
-          *flag->string_variable() = value;
-          break;
-      }
-
-      // handle errors
-      if ((flag->type() == Flag::BOOL && value != nullptr) ||
-          (flag->type() != Flag::BOOL && is_bool) || *endp != '\0') {
-        fprintf(stderr, "Error: illegal value for flag %s of type %s\n",
-          arg, Type2String(flag->type()));
-        return j;
-      }
-
-      // remove the flag & value from the command
-      if (remove_flags)
-        while (j < i)
-          argv[j++] = nullptr;
-    }
-  }
-
-  // shrink the argument list
-  if (remove_flags) {
-    int j = 1;
-    for (int i = 1; i < *argc; i++) {
-      if (argv[i] != nullptr)
-        argv[j++] = argv[i];
-    }
-    *argc = j;
-  }
-
-  // parsed all flags successfully
-  return 0;
-}
-
-void FlagList::Register(Flag* flag) {
-  RTC_DCHECK(flag);
-  RTC_DCHECK_GT(strlen(flag->name()), 0);
-  // NOTE: Don't call Lookup() within Register because it accesses the name_
-  // of other flags in list_, and if the flags are coming from two different
-  // compilation units, the initialization order between them is undefined, and
-  // this will trigger an asan initialization-order-fiasco error.
-  flag->next_ = list_;
-  list_ = flag;
-}
-
-#if defined(WEBRTC_WIN)
-WindowsCommandLineArguments::WindowsCommandLineArguments() {
-  // start by getting the command line.
-  LPTSTR command_line = ::GetCommandLine();
-   // now, convert it to a list of wide char strings.
-  LPWSTR *wide_argv = ::CommandLineToArgvW(command_line, &argc_);
-  // now allocate an array big enough to hold that many string pointers.
-  argv_ = new char*[argc_];
-
-  // iterate over the returned wide strings;
-  for(int i = 0; i < argc_; ++i) {
-    std::string s = rtc::ToUtf8(wide_argv[i], wcslen(wide_argv[i]));
-    char *buffer = new char[s.length() + 1];
-    rtc::strcpyn(buffer, s.length() + 1, s.c_str());
-
-    // make sure the argv array has the right string at this point.
-    argv_[i] = buffer;
-  }
-  LocalFree(wide_argv);
-}
-
-WindowsCommandLineArguments::~WindowsCommandLineArguments() {
-  // need to free each string in the array, and then the array.
-  for(int i = 0; i < argc_; i++) {
-    delete[] argv_[i];
-  }
-
-  delete[] argv_;
-}
-#endif  // WEBRTC_WIN
-
-}  // namespace rtc