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libobs: Disallow overwriting the crash handler #12636

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libobs: Disallow overwriting the crash handler #12636

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1 change: 1 addition & 0 deletions docs/sphinx/reference-libobs-util-base.rst
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Original file line number Diff line number Diff line change
Expand Up @@ -55,6 +55,7 @@ Logging Functions
.. function:: void base_set_crash_handler(void (*handler)(const char *, va_list, void *), void *param)

Sets the current crash handler.
This may only be set once.

---------------------

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9 changes: 9 additions & 0 deletions libobs/util/base.c
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Expand Up @@ -83,6 +83,15 @@ void base_set_log_handler(log_handler_t handler, void *param)

void base_set_crash_handler(void (*handler)(const char *, va_list, void *), void *param)
{
static bool non_default_handler_set = false;

if (non_default_handler_set) {
blog(LOG_ERROR, "Tried to set a crash handler when one already exists. "
"This is unsupported.");
return;
}

non_default_handler_set = true;
crash_param = param;
crash_handler = handler;
}
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