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crypto: make module thread-safe

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This commit is contained in:
Ben Noordhuis 2011-11-08 17:57:21 +01:00
parent 0ba8f05a42
commit 97cada0e6a
1 changed files with 74 additions and 0 deletions
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74
src/node_crypto.cc
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@ -36,6 +36,13 @@
#include <errno.h>
/* Sigh. */
#ifdef _WIN32
# include <windows.h>
#else
# include <pthread.h>
#endif
#if OPENSSL_VERSION_NUMBER >= 0x10000000L
# define OPENSSL_CONST const
#else
@ -76,6 +83,69 @@ static Persistent<String> ext_key_usage_symbol;
static Persistent<FunctionTemplate> secure_context_constructor;
#ifdef _WIN32
static HANDLE* locks;
static void crypto_lock_init(void) {
int i, n;
n = CRYPTO_num_locks();
locks = new HANDLE[n];
for (i = 0; i < n; i++)
if (!(locks[i] = CreateMutex(NULL, FALSE, NULL)))
abort();
}
static void crypto_lock_cb(int mode, int n, const char* file, int line) {
if (mode & CRYPTO_LOCK)
WaitForSingleObject(locks[type], INFINITE);
else
ReleaseMutex(locks[type]);
}
static unsigned long crypto_id_cb(void) {
return (unsigned long) GetCurrentThreadId();
}
#else /* !_WIN32 */
static pthread_rwlock_t* locks;
static void crypto_lock_init(void) {
int i, n;
n = CRYPTO_num_locks();
locks = new pthread_rwlock_t[n];
for (i = 0; i < n; i++)
if (pthread_rwlock_init(locks + i, NULL))
abort();
}
static void crypto_lock_cb(int mode, int n, const char* file, int line) {
if (mode & CRYPTO_LOCK) {
if (mode & CRYPTO_READ) pthread_rwlock_rdlock(locks + n);
if (mode & CRYPTO_WRITE) pthread_rwlock_wrlock(locks + n);
} else {
pthread_rwlock_unlock(locks + n);
}
}
static unsigned long crypto_id_cb(void) {
return (unsigned long) pthread_self();
}
#endif /* !_WIN32 */
void SecureContext::Initialize(Handle<Object> target) {
HandleScope scope;
@ -4196,6 +4266,10 @@ void InitCrypto(Handle<Object> target) {
SSL_load_error_strings();
ERR_load_crypto_strings();
crypto_lock_init();
CRYPTO_set_locking_callback(crypto_lock_cb);
CRYPTO_set_id_callback(crypto_id_cb);
// Turn off compression. Saves memory - do it in userland.
#if !defined(OPENSSL_NO_COMP)
STACK_OF(SSL_COMP)* comp_methods =