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Fix deletion of uninitialized POSIX TLS key

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Zero (the initial value of context) is a valid TLS key, so doing this
can delete someone else's key.

Fixes #627.
This commit is contained in:
Roman Donchenko 2015-10-28 15:22:33 +03:00 committed by Camilla Berglund
parent 43f4afef78
commit cdf08c1ff3
2 changed files with 4 additions and 1 deletions
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4
src/posix_tls.c
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@ -41,12 +41,14 @@ int _glfwCreateContextTLS(void)
return GLFW_FALSE;
}
_glfw.posix_tls.allocated = GLFW_TRUE;
return GLFW_TRUE;
}
void _glfwDestroyContextTLS(void)
{
pthread_key_delete(_glfw.posix_tls.context);
if (_glfw.posix_tls.allocated)
pthread_key_delete(_glfw.posix_tls.context);
}
void _glfwSetContextTLS(_GLFWwindow* context)

1
src/posix_tls.h
View File

@ -37,6 +37,7 @@
//
typedef struct _GLFWtlsPOSIX
{
GLFWbool allocated;
pthread_key_t context;
} _GLFWtlsPOSIX;