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/** |
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* This file is part of the CernVM File System. |
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*/ |
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#include "clientctx.h" |
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#include <cassert> |
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#include "smalloc.h" |
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#include "util_concurrency.h" |
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using namespace std; // NOLINT |
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ClientCtx *ClientCtx::instance_ = NULL; |
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void ClientCtx::CleanupInstance() { |
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✓✓ |
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delete instance_; |
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instance_ = NULL; |
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} |
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ClientCtx::ClientCtx() { |
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lock_tls_blocks_ = reinterpret_cast<pthread_mutex_t *>( |
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smalloc(sizeof(pthread_mutex_t))); |
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int retval = pthread_mutex_init(lock_tls_blocks_, NULL); |
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✗✓ |
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assert(retval == 0); |
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} |
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ClientCtx::~ClientCtx() { |
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pthread_mutex_destroy(lock_tls_blocks_); |
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free(lock_tls_blocks_); |
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✓✓ |
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for (unsigned i = 0; i < tls_blocks_.size(); ++i) { |
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delete tls_blocks_[i]; |
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} |
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int retval = pthread_key_delete(thread_local_storage_); |
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✗✓ |
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assert(retval == 0); |
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} |
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ClientCtx *ClientCtx::GetInstance() { |
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✓✓ |
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if (instance_ == NULL) { |
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instance_ = new ClientCtx(); |
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int retval = |
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pthread_key_create(&instance_->thread_local_storage_, TlsDestructor); |
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✗✓ |
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assert(retval == 0); |
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} |
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return instance_; |
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} |
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void ClientCtx::Get(uid_t *uid, gid_t *gid, pid_t *pid) { |
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ThreadLocalStorage *tls = static_cast<ThreadLocalStorage *>( |
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pthread_getspecific(thread_local_storage_)); |
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✓✓✓✓
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if ((tls == NULL) || !tls->is_set) { |
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*uid = -1; |
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*gid = -1; |
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*pid = -1; |
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} else { |
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*uid = tls->uid; |
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*gid = tls->gid; |
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*pid = tls->pid; |
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} |
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} |
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bool ClientCtx::IsSet() { |
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ThreadLocalStorage *tls = static_cast<ThreadLocalStorage *>( |
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pthread_getspecific(thread_local_storage_)); |
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✓✓ |
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if (tls == NULL) |
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return false; |
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return tls->is_set; |
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} |
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void ClientCtx::Set(uid_t uid, gid_t gid, pid_t pid) { |
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ThreadLocalStorage *tls = static_cast<ThreadLocalStorage *>( |
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pthread_getspecific(thread_local_storage_)); |
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✓✓ |
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if (tls == NULL) { |
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tls = new ThreadLocalStorage(uid, gid, pid); |
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int retval = pthread_setspecific(thread_local_storage_, tls); |
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✗✓ |
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assert(retval == 0); |
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MutexLockGuard lock_guard(lock_tls_blocks_); |
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tls_blocks_.push_back(tls); |
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} else { |
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tls->uid = uid; |
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tls->gid = gid; |
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tls->pid = pid; |
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tls->is_set = true; |
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} |
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} |
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void ClientCtx::TlsDestructor(void *data) { |
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ThreadLocalStorage *tls = static_cast<ClientCtx::ThreadLocalStorage *>(data); |
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delete tls; |
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assert(instance_); |
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MutexLockGuard lock_guard(instance_->lock_tls_blocks_); |
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for (vector<ThreadLocalStorage *>::iterator i = |
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instance_->tls_blocks_.begin(), iEnd = instance_->tls_blocks_.end(); |
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i != iEnd; ++i) |
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{ |
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if ((*i) == tls) { |
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instance_->tls_blocks_.erase(i); |
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break; |
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} |
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} |
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} |
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void ClientCtx::Unset() { |
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ThreadLocalStorage *tls = static_cast<ThreadLocalStorage *>( |
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pthread_getspecific(thread_local_storage_)); |
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✓✗ |
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if (tls != NULL) { |
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tls->is_set = false; |
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tls->uid = -1; |
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tls->gid = -1; |
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tls->pid = -1; |
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} |
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} |