dart::UserTags Class Reference

#include <tags.h>

Inheritance diagram for dart::UserTags:

Static Public Member Functions
static const char *	TagName (uword tag_id)
static bool	IsUserTag (uword tag_id)
static void	AddStreamableTagName (const char *tag)
static void	RemoveStreamableTagName (const char *tag)
static bool	IsTagNameStreamable (const char *tag)
static void	Init ()
static void	Cleanup ()

Static Public Attributes
static constexpr intptr_t	kMaxUserTags = 256
static constexpr uword	kUserTagIdOffset = 0x4096
static constexpr uword	kDefaultUserTag = kUserTagIdOffset

Detailed Description

Definition at line 107 of file tags.h.

Member Function Documentation

AddStreamableTagName()

void dart::UserTags::AddStreamableTagName ( const char *  tag )

static

Definition at line 152 of file tags.cc.

                                                   {
  MutexLocker ml(subscribed_tags_lock_);
  // Check this tag isn't already in the subscription list.
  for (intptr_t i = 0; i < subscribed_tags_.length(); ++i) {
    if (strcmp(tag, subscribed_tags_.At(i)) == 0) {
      return;
    }
  }
  subscribed_tags_.Add(Utils::StrDup(tag));
}

Cleanup()

void dart::UserTags::Cleanup ( )

static

Definition at line 191 of file tags.cc.

                       {
  {
    MutexLocker ml(subscribed_tags_lock_);
    for (intptr_t i = 0; i < subscribed_tags_.length(); ++i) {
      free(const_cast<char*>(subscribed_tags_.At(i)));
    }
    subscribed_tags_.Clear();
  }
  delete subscribed_tags_lock_;
  subscribed_tags_lock_ = nullptr;
}

Init()

void dart::UserTags::Init ( )

static

Definition at line 187 of file tags.cc.

                    {
  subscribed_tags_lock_ = new Mutex();
}

IsTagNameStreamable()

bool dart::UserTags::IsTagNameStreamable ( const char *  tag )

static

Definition at line 177 of file tags.cc.

                                                  {
  MutexLocker ml(subscribed_tags_lock_);
  for (intptr_t i = 0; i < subscribed_tags_.length(); ++i) {
    if (strcmp(tag, subscribed_tags_.At(i)) == 0) {
      return true;
    }
  }
  return false;
}

IsUserTag()

static bool dart::UserTags::IsUserTag ( uword  tag_id )

inlinestatic

Definition at line 114 of file tags.h.

                                      {
    return (tag_id >= kUserTagIdOffset) &&
           (tag_id < kUserTagIdOffset + kMaxUserTags);
  }

RemoveStreamableTagName()

void dart::UserTags::RemoveStreamableTagName ( const char *  tag )

static

Definition at line 163 of file tags.cc.

                                                      {
  MutexLocker ml(subscribed_tags_lock_);
  bool found = false;
  for (intptr_t i = 0; i < subscribed_tags_.length(); ++i) {
    if (strcmp(tag, subscribed_tags_.At(i)) == 0) {
      free(const_cast<char*>(subscribed_tags_.At(i)));
      subscribed_tags_.RemoveAt(i);
      found = true;
      break;
    }
  }
  ASSERT(found);
}

TagName()

const char * dart::UserTags::TagName ( uword  tag_id )

static

Definition at line 139 of file tags.cc.

                                          {
  ASSERT(tag_id >= kUserTagIdOffset);
  ASSERT(tag_id < kUserTagIdOffset + kMaxUserTags);
  const Thread* thread = Thread::Current();
  Zone* zone = thread->zone();
  Isolate* isolate = thread->isolate();
  const UserTag& tag =
      UserTag::Handle(zone, UserTag::FindTagById(isolate, tag_id));
  ASSERT(!tag.IsNull());
  const String& label = String::Handle(zone, tag.label());
  return label.ToCString();
}

Member Data Documentation

kDefaultUserTag

constexpr uword dart::UserTags::kDefaultUserTag = kUserTagIdOffset

staticconstexpr

Definition at line 112 of file tags.h.

kMaxUserTags

constexpr intptr_t dart::UserTags::kMaxUserTags = 256

staticconstexpr

Definition at line 110 of file tags.h.

kUserTagIdOffset

constexpr uword dart::UserTags::kUserTagIdOffset = 0x4096

staticconstexpr

Definition at line 111 of file tags.h.

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The documentation for this class was generated from the following files:

• third_party/dart-lang/sdk/runtime/vm/tags.h
• third_party/dart-lang/sdk/runtime/vm/tags.cc